!! Kata Pengantar-Daftar Isi

LAPORAN ANTARA

SID Pengendalian Sedimen Sungai Tungoi Kabupaten Bolaang Mongondow

KATA PENGANTAR

LAPORAN ANTARA (INTERIM REPORT) disusun oleh PT. SILVA PATRIA sesuai persyaratan yang tertuang di dalam perjanjian kontrak layanan jasa konsultansi yang dilakukan dengan pihak “Satuan Kerja Balai Besar Wilayah Sungai Sulawesi I, Pejabat Pembuat Komitmen (PPK) Perencanaan dan Program”, nomor : IK.02.04.PKPP/BWSS-I/SP-JKonsultansi/32/2012, tanggal 10 April 2012 untuk pekerjaan “SID Pengendalian Sedimen Sungai Tungoi Kabupaten Bolaang Mongondow”. Secara garis besar, isi laporan ini memberi penjelasan tentang :

Bab I Pendahuluan, menguraikan tentang latar belakang pekerjaan, maksud dan tujuan, sasaran, lokasi pekerjaan, dan ruang lingkup pekerjaan.

Bab II Gambaran Umum Lokasi, menguraikan tentang kondisi secara umum lokasi pekerjaan.

Bab III Tinjauan Lapangan, menguraikan tentang hasil inventarisasi dan permasalahan di lapangan.

Bab IV Pengukuran Topografi, menguraikan tentang pelaksanaan pengukuran topografi serta pemasangan patok BM dan CP .

Bab V Analisis Hidrologi, menguraikan tentang data hujan yang dipakai, perhitungan hujan rancangan, perhitungan debit rancangan, erosi dan sedimentasi.

Bab VI Analisis Hidrolika, menguraikan tentang kondisi eksisting hidrolika aliran sungai dengan menggunakan permodelan Hec-Ras.

Bab VII Konsep Desain, menguraikan tentang kriteria perencanaan desain yang dipakai, serta usulan penanganan struktural bangunan pengendali banjir dan sedimen.

Bab VIII Pertemuan Konsultasi Masyarakat, menguraikan tentang hasil pertemuan konsultasi masyaraka di lokasi pekerjaan.

Bab IX Organisasi Pelaksana Dan Rencana Kerja, menjelaskan tentang organisasi pelaksanaan dan jadwal rencana kerj serta kemajuan pelaksanaan pekerjaan.

Setelah didiskusikan dengan pihak Pemberi Tugas, maka materi dalam laporan ini akan dijadikan sebagai acuan (guideline) bagi pelaksanaan tugas-tugas Konsultan pada tahap selanjutnya. Demikian laporan ini disampaikan, atas perhatian dan tanggapan serta masukan yang telah diberikan diucapkan terima kasih.

Manado, Juli 2012

PT. SILVA PATRIA

i

LAPORAN ANTARA


DAFTAR ISI

KATA PENGANTAR ..................................................................................................i

DAFTAR ISI ...............................................................................................................ii

DAFTAR GAMBAR ....................................................................................................vi

DAFTAR TABEL ........................................................................................................ix

BAB 1. PENDAHULUAN

1.1. LATAR BELAKANG...........................................................................................1-1

1.2. MAKSUD DAN TUJUAN...................................................................................1-1

1.3. SASARAN PEKERJAAN...................................................................................1-2

1.4. LOKASI KEGIATAN..........................................................................................1-2

1.5. PENGGUNA JASA............................................................................................1-3

1.6. JANGKA WAKTU PELAKSANAAN...................................................................1-3

1.7. LINGKUP KEGIATAN........................................................................................1-3

BAB 2. GAMBARAN UMUM LOKASI STUDI

2.1. PROFIL WILAYAH KABUPATEN......................................................................2-1

2.1.1. Letak Geografis dan Administratif..........................................................2-1

2.1.2. Kondisi Topografi...................................................................................2-4

2.1.3. Kondisi Geologi Regional.......................................................................2-6

2.1.4. Kondisi Iklim dan Curah Hujan...............................................................2-8

2.1.5. Kondisi Kependudukan..........................................................................2-9

2.1.6. Kondisi Ketenagakerjaan.......................................................................2-10

2.1.7. Kondisi Sosial Budaya...........................................................................2-11

2.1.8. Kondisi Pemanfataan Lahan..................................................................2-12

2.1.9. Rencana Tata Ruang Wilayah...............................................................2-15

2.2. PROFIL WILAYAH KECAMATAN LOLAYAN...................................................2-16

2.2.1. Letak Administratif.................................................................................2-16

2.2.2. Topografi................................................................................................2-17

2.2.3. Kependudukan.......................................................................................2-17

2.2.4. Pertanian................................................................................................2-19

2.2.5. Pendidikan dan Kesehatan....................................................................2-19

2.2.6. Industri dan Perdagangan......................................................................2-20

ii

LAPORAN ANTARA


2.2.7. Transportasi dan Komunikasi................................................................2-20

BAB 3. TINJAUAN LAPANGAN

3.1. DATA PENUNJANG..........................................................................................3-1

3.1.1. Peta Dasar.............................................................................................3-1

3.1.2. Data Sosial Ekonomi..............................................................................3-1

3.1.3. Data Hujan.............................................................................................3-1

3.2. PROFIL DESA TUNGOI....................................................................................3-2

3.2.1. Pencapaian Lokasi.................................................................................3-2

3.2.2. Desa Tungoi I.........................................................................................3-2

3.2.3. Desa Tungoi II........................................................................................3-3

3.3. IDENTIFIKASI LAPANGAN...............................................................................3-4

3.3.1. Morfologi Sungai....................................................................................3-4

3.3.2. Daerah Aliran Sungai.............................................................................3-4

3.3.3. Tinjauan Lapangan................................................................................3-4

3.3.4. Kajian Permasalahan.............................................................................3-23

BAB 4. PENGUKURAN TOPOGRAFI

4.1. PENGUKURAN TOPOGRAFI DAN PEMETAAN..............................................4-1

4.1.1. Uraian umum.........................................................................................4-1

4.1.2. Pengukuran Topografi dan Pemetaan Situasi.......................................4-1

4.1.3. Pelaksanaan Pengukuran Topografi dan Pemetaan.............................4-1

4.1.4. Hasil Pelaksanaan Pengukuran Topografi............................................4-6

BAB 5. ANALISIS HIDROLOGI

5.1. LOKASI STASIUN HUJAN................................................................................5-1

5.2. DATA HUJAN MAKSIMUM...............................................................................5-1

5.3. HUJAN RANCANGAN.......................................................................................5-2

5.3.1. Hujan Wilayah........................................................................................5-2

5.3.2. Pemilihan Metode Distribusi..................................................................5-8

5.3.3. Distribusi Frekuensi...............................................................................5-10

5.3.4. Uji Distribusi Frekuensi..........................................................................5-12

5.4. DEBIT BANJIR RANCANGAN..........................................................................5-15

5.4.1. Debit Titik Tinjau 1 (DAS Tungoi) dan Titik Tinjau 10 (DAS Ongkag). . .5-15

iii

LAPORAN ANTARA


5.4.2. Hidrograf Yang Dipakai..........................................................................5-33

5.4.3. Rekapitulasi Debit Banjir........................................................................5-35

5.5. EROSI DAN SEDIMENTASI.............................................................................5-37

5.5.1. Pendekatan Metode USLE....................................................................5-37

5.5.2. Hasil Perhitungan...................................................................................5-41

BAB 6. ANALISIS HIDROLIKA

6.1. UMUM...............................................................................................................6-1

6.2. MORFOLOGI SUNGAI ONGKAG & TUNGOI...................................................6-1

6.2.1. Bentuk/Pola Daerah Aliran Sungai (DAS)..............................................6-1

6.2.2. Karakteristik Alur Sungai........................................................................6-2

6.3. TINJAUAN FAKTOR/KOEFISIEN KEKASARAN..............................................6-4

6.3.1. Penentuan nilai koefisien kekasaran.....................................................6-5

6.3.2. Faktor-Faktor Yang Mempengaruhi Koefisien Kekasaran Manning......6-5

6.3.3. Nilai Koefisien Kekasaran Manning.......................................................6-6

6.3.4. Koefisien Kekasaran Sungai Ongkag dan Tungoi.................................6-7

6.4. PEMODELAN 1 DIMENSI DENGAN HEC-RAS...............................................6-8

6.4.1. Dasar Teori Program HEC-RAS............................................................6-8

6.4.2. Perhitungan Debit Pada Penampang Sungai........................................6-9

6.4.3. Pemodelan Aliran Permanen (Steady Flow) dengan HEC-RAS...........6-9

6.4.4. Tahapan Pemodelan HEC-RAS............................................................6-11

6.5. SIMULASI HIDRAULIK HEC-RAS UNTUK KONDISI EKSISTING...................6-15

6.6. PEMODELAN ALTERNATIF 2 (ADA PERBAIKAN/PEMASANGAN

BENDUNG DI SUNGAI TUNGOI).....................................................................6-20

6.7. HASIL PEMODELAN PADA KONDISI EKSISTING..........................................6-21

BAB 7. KONSEP DESAIN

7.1. KRITERIA DESAIN............................................................................................7-1

7.1.1. Bangunan Pengendali Sedimen............................................................7-1

7.1.2. Bangunan Pengendali Banjir.................................................................7-6

7.1.3. Perhitungan Stabiitas Bangunan...........................................................7-10

7.2. USULAN PENANGANAN..................................................................................7-12

iv

LAPORAN ANTARA


BAB 8. PERTEMUAN KONSULTASI MASYARAKAT

8.1. UMUM...............................................................................................................8-1

8.2. PELAKSANAAN PERTEMUAN KONSULTASI MASYARAKAT.......................8-1

8.3. HASIL PERTEMUAN KONSULTASI MASYARAKAT.......................................8-2

8.4. DOKUMENTASI PELAKSANAAN KEGIATAN PERTEMUAN

KONSULTASI MASYARAKAT..........................................................................8-3

BAB 9. ORGANISASI PELAKSANA DAN RENCANA KERJA

9.1. ORGANISASI PELAKSANA PEKERJAAN.......................................................9-1

9.1.1. Personil Konsultan.................................................................................9-1

9.1.2. Tugas dan Tanggung Jawab Tenaga Ahli.............................................9-2

9.2. JADUAL PENUGASAN PERSONIL..................................................................9-6

9.3. JADUAL PERALATAN KERJA..........................................................................9-6

9.4. JADUAL PELAKSANAAN KEGIATAN..............................................................9-7

9.5. RENCANA KERJA SELANJUTNYA..................................................................9-8

v

LAPORAN ANTARA


DAFTAR GAMBAR

Gambar 1.1 Peta Lokasi Pekerjaan “SID Pengendalian Sedimen

Sungai Tungoi Kabupaten Bolaang Mongondow” Sulawesi Utara...............................................................................................................1-2

Gambar 2.1 Peta Wilayah Kabupaten Bolaang Mongondow...............................................................................................................2-2

Gambar 2.2 Peta Administrasi Kecamatan di Kab. Bolaang Mongondow...............................................................................................................2-3

Gambar 2.3 Peta Topografi Kabupaten Bolaang Mongondow...............................................................................................................2-5

Gambar 2.4 Peta Kelas Lereng Kab. Bolaang Mongondow...............................................................................................................2-5

Gambar 2.5 Peta Tataan Tektonik Daerah Sulawesi...............................................................................................................2-6

Gambar 2.6 Peta Geologi Wilayah Kab. Bolaang Mongondow...............................................................................................................2-8

Gambar 2.7 Prosentase Penggunaan Lahan di Kab. Bolaang Mongondow...............................................................................................................2-14

Gambar 2.8 Distribusi Penggunaan Lahan di Kab. Bolaang Mongondow...............................................................................................................2-14

Gambar 2.9 Peta Penggunaan Lahan Kab. Bolaang Mongondow...............................................................................................................2-15

Gambar 2.10 Rencana Tata Ruang Wilayah Kabupaten Bolaang Mongondow...............................................................................................................2-16

Gambar 2.11 Peta Kecamatan Lolayan Kab. Bolaang Mongondow...............................................................................................................2-17

vi

LAPORAN ANTARA


Gambar 3.1 Lokasi Desa Tungoi I dan II di Kecamatan Lolayan...............................................................................................................3-2

Gambar 3.2 Peta Kemiringan Lereng Pada DAS Tungoi...............................................................................................................3-5

Gambar 3.3 Peta Penggunaan Lahan Pada DAS Tungoi...............................................................................................................3-5

Gambar 3.4 Peta DAS dan Alur Sungai Tungoi dan Sungai Ongkag...............................................................................................................3-6

Gambar 4.1 Standar Konstruksi BM dan CP...............................................................................................................4-5

Gambar 5.1 Lokasi Stasiun Hujan...............................................................................................................5-1

Gambar 5.2 Sketsa Poligon Thiessen...............................................................................................................5-3

Gambar 5.3 Hujan Wilayah Metode Poligon Thiessen Pada DAS Tungoi dan Ongkag..................................................................................................5-4

Gambar 5.4 Pembagian Sub DAS dan Tinjau Debit...............................................................................................................5-5

Gambar 5.5 Sketsa Hidrograf Satuan Sintetik Nakayasu...............................................................................................................5-16

Gambar 5.6 Hidrograf Satuan Sintetik Nakayasu Titik Tinjau 1...............................................................................................................5-19

Gambar 5.7 Hidrograf Satuan Sintetik Nakayasu Titik Tinjau 10...............................................................................................................5-21

Gambar 5.8 Sketsa Hidrograf Satuan Sintetik Gamma I...............................................................................................................5-22

Gambar 5.9 Hidrograf Satuan Sintetik Gamma I Titik Tinjau 1...............................................................................................................5-25

vii

LAPORAN ANTARA


Gambar 5.10 Hidrograf Satuan Sintetik Gamma I Titik Tinjau 10...............................................................................................................5-27

Gambar 5.11 Sketsa Hidrograf Satuan Sintetik Snyder...............................................................................................................5-28

Gambar 5.12 Hidrograf Satuan Sintetik Sneyder Titik Tinjau 1...............................................................................................................5-30

Gambar 5.13 Hidrograf Satuan Sintetik Sneyder Titik Tinjau 10...............................................................................................................5-32

Gambar 5.14 Kapasitas Bankfull Sungai Tungoi Pada Ruas P.04...............................................................................................................5-34

Gambar 5.15 Kapasitas Bankfull Sungai Ongkag Pada Ruas P.173...............................................................................................................5-35

Gambar 5.16 Hasil Perhitungan Debit Banjir Maksimum Tiap Titik Tinjau...............................................................................................................5-36

Gambar 6.1 Sketsa Bentuk Daerah Aliran Sungai (DAS)...............................................................................................................6-2

Gambar 6.2 Sketsa Profil Memanjang Alur Sungai...............................................................................................................6-3

Gambar 6.3 Profil Memanjang Sungai Ongkag Mongondow...............................................................................................................6-4

Gambar 6.4 Profil Memanjang Sungai Tungoi...............................................................................................................6-4

Gambar 6.6 Kondisi Alur Sungai Ongkag...............................................................................................................6-7

Gambar 6.7 Kondisi Alur Sungai Tungoi...............................................................................................................6-7

Gambar 6.8 Bentuk Persamaan Energi...............................................................................................................6-8

viii

LAPORAN ANTARA


Gambar 6.9 Perhitungan Debit Dengan Cara Subdivision Method di HEC-RAS...............................................................................................................6-9

Gambar 6.10 Tampilan Welcome HEC-RAS...............................................................................................................6-10

Gambar 6.11 Tampilan Starting HEC-RAS...............................................................................................................6-10

Gambar 6.12 Bagan Alir Pemodelan HEC-RAS Pada Kondisi Eksisting...............................................................................................................6-11

Gambar 6.13 Skema Sistem Sungai dan Contoh Input Cross Section P.153...............................................................................................................6-12

Gambar 6.14 Input Data Debit Steady Flow...............................................................................................................6-14

Gambar 6.15 Input Boundary Conditions...............................................................................................................6-14

Gambar 6.16 Tahapan Perhitungan Pemodelan...............................................................................................................6-14

Gambar 6.17 Kondisi Cross Section P.154 Sungai Ongkag Sebelum Jembatan Jl. Raya Ke Kota Mobagu, Kondisi Aman Tidak Ada Luapan Banjir....................................................................................................6-15

Gambar 6.18 Kondisi Cross Section P.171 Sungai Ongkag Setelah Belokan Meandering di Desa Tungoi 2, Kondisi Meluap Ke Sisi Kanan dan Kiri Sungai....................................................................................6-16

Gambar 6.19 Kondisi Cross Section P.175 Sungai Ongkag Sebelum Belokan Meandering di Desa Tungoi 2, Kondisi Meluap Ke Sisi Kanan dan Kiri Sungai....................................................................................6-16

Gambar 6.20 Kondisi Cross Section P.187 Sungai Ongkag Sesudah Muara Sungai Tungoi, Kondisi Meluap Ke Sisi Kanan dan Kiri Sungai..........6-16

Gambar 6.21 Kondisi Cross Section P.200 Sungai Ongkag Sebelum Muara Sungai Tungoi, Kondisi Aman Walaupun Free Board Sudah Rendah................................................................................................6-17

Gambar 6.22 Kondisi Cross Section B.237 Sungai Ongkag Kondisi Aman...............6-17

Gambar 6.23 Kondisi Long Section Sungai Ongkag Hasil Running HEC-RAS Q2th.....................................................................................................6-17

ix

LAPORAN ANTARA


Gambar 6.24 Kondisi Cross Section P.3 Sungai Tungoi Sebelum Muara Sungai Ongkag, Kondisi Meluap Ke Sisi Kanan dan Kiri Sungai di Permukiman, Kebun Kelapa................................................................6-18

Gambar 6.25 Kondisi Cross Section P.40 Sungai Tungoi Sebelum Muara Sungai Tobanon, Kondisi Meluap Ke Sisi Kanan dan Kiri Sungai di Permukiman, Kebun........................................................................6-18

Gambar 6.26 Kondisi Cross Section P.51 Sungai Tungoi Sebelum Jembatan Desa Tungoi, Kondisi Meluap Ke Sisi Kanan dan Kiri Sungai di Permukiman, Persawahan..................................................................6-18

Gambar 6.27 Kondisi Cross Section P.72 Sungai Tungoi Sebelah Jl. Raya Mobagu, Kondisi Cukup Aman dan Tidak Ada Luapan.......................6-19

Gambar 6.28 Kondisi Cross Section P.80 Sungai Tungoi Sebelah Jl. Raya Mobagu, Kondisi Cukup Aman dan Tidak Ada Luapan.......................6-19

Gambar 6.29 Kondisi Long Section Sungai Tungoi Hasil Running HEC-RAS Q2th.....................................................................................................6-19

Gambar 7.1 Bentuk Tipikal Bangunan Check Dam...............................................................................................................7-2

Gambar 7.2 Panjang Loncatan Hidrolis...............................................................................................................7-4

Gambar 7.3 Penentuan tinggi bangunan utama...............................................................................................................7-6

Gambar 7.4 Standar Bentuk Tanggul...............................................................................................................7-7

Gambar 7.5 Model Dimensi Perencanaan Krib Konstruksi Bronjong...............................................................................................................7-8

Gambar 7.6 Konstruksi Bronjong Kawat...............................................................................................................7-9

Gambar 7.7 Contoh Normalisasi Sungai...............................................................................................................7-9

Gambar 7.8 Tipikal Bangunan Pengendali Banjir (Parafet Pas. Batu)...............................................................................................................7-12

Gambar 7.9 Tipikal Bangunan Pengendali Banjir (Tanggul Tanah)...............................................................................................................7-12

x

LAPORAN ANTARA


Gambar 7.10 Tipikal Bangunan Perkuatan Tebing (Bronjong)...............................................................................................................7-12

Gambar 7.11 Tipikal Bangunan Pengendali Sedimen (Check Dam Pas. Batu)...............................................................................................................7-13

Gambar 7.12 Tipikal Bangunan Pengendali Sedimen (Bronjong Kawat)...............................................................................................................7-13

Gambar 7.13 Layout Rencana Pengananan...............................................................................................................7-14

Gambar 9.1 Struktur Organisasi Pelaksana Pekerjaan...............................................................................................................9-9

Gambar 9.2 Jadwal Penugasan Personil...............................................................................................................9-11

Gambar 9.3 Jadwal Penggunaan Peralatan...............................................................................................................9-12

Gambar 9.4 Jadwal Pelaksanaan Pekerjaan dan Kemajuan...............................................................................................................9-13

DAFTAR TABEL

Tabel 2.1 Luas Wilayah Menurut Kecamatan...............................................................................................................2-2

Tabel 2.2 Banyaknya Desa Menurut Kecamatan...............................................................................................................2-3

xi

LAPORAN ANTARA


Tabel 2.3 Kelas Kemiringan Lereng Kab. Bolaang Mongondow...............................................................................................................2-4

Tabel 2.4 Curah Hujan Kab. Bolaang Mongondow Th 2010...............................................................................................................2-9

Tabel 2.5 Luas Wilayah dan Jumlah Penduduk Menurut Kecamatan...............................................................................................................2-10

Tabel 2.6 Penduduk Usia 15 Tahun Ke Atas yang Bekerja Menurut Kelompok Sektor Ekonomi.........................................................................................2-11

Tabel 2.7 Banyaknya Penduduk, Luas dan Kepadatan Kec. Lolayan...............................................................................................................2-18

Tabel 2.8 Penduduk Menurut Jenis Kelamin dan Sex Ratio Kec. Lolayan...............................................................................................................2-18

Tabel 2.9 Produksi Tanaman Pangan Kec. Lolayan...............................................................................................................2-19

Tabel 3.1 Jenis Penggunaan Lahan Pada DAS Tungoi...............................................................................................................3-4

Tabel 3.2 Dokumentasi Tinjauan Lapangan...............................................................................................................3-7

Tabel 4.1 Daftar Koordinat dan Elevasi patok Bech Mark (BM)...............................................................................................................4-7

Tabel 4.2 Daftar Koordinat dan Elevasi patok Control Point (CP)...............................................................................................................4-8

Tabel 4.3 Foto-Foto Pelaksanaan Pengukuran dan BM/CP...............................................................................................................4-8

Tabel 5.1 Curah Hujan Harian Maksimum...............................................................................................................5-2

Tabel 5.2 Koefisien Thiessen Masing Masing Titik Tinjau...............................................................................................................5-6

xii

LAPORAN ANTARA


Tabel 5.3 Perhitungan Hujan Wilayah Titik Tinjau 1 (Sungai Tungoi)...............................................................................................................5-7

Tabel 5.4 Hasil Perhitungan Hujan Wilayah Tiap Titik Tinjau...............................................................................................................5-7

Tabel 5.5 Perhitungan Parameter Dasar Statistik Titik Tinjau 1 (Sungai Tungoi)...............................................................................................................5-9

Tabel 5.6 Pemilihan Metode Distribusi Berdasarkan Syarat Agihan...............................................................................................................5-10

Tabel 5.7 Perhitungan Distribusi Frekuesi Titik Tinjau 1...............................................................................................................5-11

Tabel 5.8 Hujan Rancangan Titik Tinjau 1 (Sungai Tungoi)...............................................................................................................5-12

Tabel 5.9 Hasil Perhitungan Curah Hujan Rancangan Tiap Titik Tinjau...............................................................................................................5-12

Tabel 5.10 Hasil Perhitungan Uji Smirnov Kolmogorov Tiap Titik Tinjau...............................................................................................................5-14

Tabel 5.11 Hasil Perhitungan Uji Chi Square Titik Tinjau 1...............................................................................................................5-15

Tabel 5.12 Hasil Perhitungan Uji Chi Square Tiap Titik Tinjau...............................................................................................................5-15

Tabel 5.13 Debit Banjir Maksimum Metode Nakayasu Titik Tinjau 1...............................................................................................................5-19

Tabel 5.14 Debit Banjir Maksimum Metode Nakayasu Titik Tinjau 10...............................................................................................................5-21

Tabel 5.15 Debit Banjir Maksimum Metode Gamma I Titik Tinjau 1...............................................................................................................5-25

Tabel 5.16 Debit Banjir Maksimum Metode Gamma I Titik Tinjau 10...............................................................................................................5-27

xiii

LAPORAN ANTARA


Tabel 5.17 Debit Banjir Maksimum Metode Sneyder Titik Tinjau 1...............................................................................................................5-30

Tabel 5.18 Debit Banjir Maksimum Metode Sneyder Titik Tinjau 10...............................................................................................................5-32

Tabel 5.19 Rekapitulasi Debit Banjir Maksimum Titik Tinjau 1 (S. Tungoi)...............................................................................................................5-33

Tabel 5.20 Rekapitulasi Debit Banjir Maksimum Titik Tinjau 10 (S. Ongkag)...............................................................................................................5-33

Tabel 5.21 Nilai K untuk Beberapa Jenis Tanah di Indonesia (Arsyad, 1979)...............................................................................................................5-38

Tabel 5.22 Perkiraan Nilai Faktor C dan P...............................................................................................................5-39

Tabel 5.23 Perhitungan Laju Sedimentasi Pada Titik Tinjau 4 (Anak S. Tungoi Utara).......................................................................................................5-41

Tabel 5.24 Perhitungan Laju Sedimentasi Pada Titik Tinjau 5 (Anak S.Tungoi Selatan)....................................................................................................5-42

Tabel 5.25 Perhitungan Laju Sedimentasi Pada Titik Tinjau 2 (S. Tungoi)...............5-43

Tabel 6.1 Nilai Koefisien Kekasaran n Untuk Saluran Alam...............................................................................................................6-6

Tabel 6.1 Nilai Koefisien Kekasaran n Untuk Saluran Alam...............................................................................................................6-6

Tabel 6.2 Hasil Pemodelan Sungai Ongkag Pada Kondisi Eksisting Q2th...............................................................................................................6-24

Tabel 6.3 Hasil Pemodelan Sungai Tungoi Pada Kondisi Eksisting Q2th...............................................................................................................6-25

Tabel 7.1 Tebal Mercu Pelimpah...............................................................................................................7-2

Tabel 7.2 Hubungan Antara Debit dan Tinggi Jagaan...............................................................................................................7-4

xiv

LAPORAN ANTARA


Tabel 9.1 Kebutuhan Man Month Personil...............................................................................................................9-1

Tabel 9.2 Analisa Distribusi Man-Month Tenaga Ahli...............................................................................................................9-10

xv

!! Kata Pengantar-Daftar Isi

Documents

Transcript of !! Kata Pengantar-Daftar Isi