Daftar Isi.docx

DAFTAR ISI KATA PENGANTAR................................................................................................. i DAFTAR ISI.............................................................................................................. ii DAFTAR GAMBAR.................................................................................................. vii DAFTAR TABEL....................................................................................................... ix BAB I PENDAHULUAN.......................................................................................... 1 1.1................................................................................................................. Latar Belakang ................................................................................................................ 1 1.2................................................................................................................. Maksud dan Tujuan ................................................................................................................ 3 1.3................................................................................................................. Ruang Lingkup Kerja Praktik ................................................................................................................ 3 1.4................................................................................................................. Lokasi Pekerjaan ................................................................................................................ 4 1.5................................................................................................................. Metode Pengumpulan data ................................................................................................................ 4 1.6................................................................................................................. Jadwal Kegiatan Kerja Praktik ................................................................................................................ 5

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1.7................................................................................................................. Sistematika Penulisan Kerja Praktik ................................................................................................................ 6 BAB II MANAJEMEN KONSTRUKSI DAN PROYEK......................................... 7 2.1. Data Umum dan Teknis Proyek............................................................ 7 2.1.1. Data Umum Proyek..................................................................... 7 2.1.2. Data Teknis Proyek..................................................................... 8 2.2. Organisasi Proyek................................................................................. 9 2.2.1. Profil Pemilik Pekerjaan............................................................. 10 2.2.2. Profil Penyedia Jasa.................................................................... 10 2.2.3. Organisasi Pelaksana Proyek...................................................... 11 2.3. TUGAS, HAK DAN KEWAJIBAN..................................................... 16 2.3.1. Pengguna Jasa............................................................................. 16 2.3.2. Penyedia Jasa.............................................................................. 17 2.4. PENGADAAN JASA KONSTRUKSI................................................. 18 2.4.1. Prosedur Pengadaan Jasa Konstruksi.......................................... 18 2.4.2. Tahapan Pengadaan Jasa Konstruksi........................................... 19

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2.4.3. Hubungan Kerja.......................................................................... 20 BAB III METODE PELAKSANAAN KONSTRUKSI............................................ 23 3.1. Ruang Lingkup Pekerjaan..................................................................... 23 3.2. Uraian Metode Pelaksanaan Konstruksi............................................... 23 3.3. Metode Kerja Pemancangan Tiang....................................................... 24 3.3.1. Persiapan Lokasi Pemancangan.................................................. 24 3.3.2. Survei.......................................................................................... 24 3.3.3. Persiapan Alat Pemancang.......................................................... 24 3.3.4. Penyimpanan Tiang Pancang...................................................... 25 3.3.5. Pemindahan Tiang Pancang ke Lokasi Pemancangan................ 26 3.3.6. Proses Pengangkatan Tiang......................................................... 26 3.3.7. Penempatan Tiang Pancang dan Derek ke Titik Pancang........... 26 3.3.8. Pada Titik Pemancangan............................................................. 27 3.3.9. Awal Pemancangan..................................................................... 27 3.3.10. Pemancangan Tiang Pancang Pertama...................................... 28 3.3.11. Pemancangan Tiang Pancang Kedua dan Seterusnya............... 28

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3.3.12. Welding Joint............................................................................ 29 3.3.13. Final Set.................................................................................... 29 3.3.14. General Safety Information....................................................... 30 3.3.15. Quality Control......................................................................... 31 BAB IV PELAKSANAAN PEKERJAAN KONSTRUKSI...................................... 32 4.1. Gambaran Wilayah Bangunan Boiler................................................... 32 4.2. Pengertian Pondasi Dalam.................................................................... 33 4.2.1. Pengertian Pondasi Tiang Pancang............................................. 33 4.2.2. Pengertian Tiang Pancang Baja.................................................. 35 4.2.3. Alat Pemancangan Tiang............................................................. 36 4.3. Uraian Pelaksanaan Pemancangan........................................................ 40 4.3.1. Schedule Pekerjaan Pemancangan.............................................. 41 4.3.2. Toolbox Meeting......................................................................... 41 4.3.3. Penyiapan Lahan Area Kerja...................................................... 41 4.3.4. Penempatan Material.................................................................. 41 4.3.5. Pengukuran Titik Tiang Pancang................................................ 41

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4.3.6. Pengecekan Tiang Pancang......................................................... 42 4.3.7. Peletakan Tiang Pancang............................................................ 42 4.3.8. Pengukuran Tiang Pancang......................................................... 42 4.3.9. Proses Pemancangan................................................................... 43 4.3.10. Peletakan Posisi Tiang.............................................................. 43 4.3.11. Penurunan Hammer................................................................... 43 4.3.12. Penyambungan Tiang Pancang................................................. 44 4.3.13. Metode Pengelasan................................................................... 44 4.3.14. Penetrant Test............................................................................ 45 4.3.15. Kalendering............................................................................... 47 4.4. Metode Test Tiang Pancang.................................................................. 49 4.4.1. Pengertian................................................................................... 49 4.4.2. Tujuan PDA Test......................................................................... 49 4.4.3. Lingkup Pengujian...................................................................... 49 4.4.4. CAPWAP.................................................................................... 49 4.4.5. Data Tiang Uji............................................................................. 50

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4.4.6. Alat PDA..................................................................................... 50 4.4.7. Metode Kerja.............................................................................. 51 4.4.8. Hasil Analisa............................................................................... 51 4.5. Kesesuaian dan Ketidaksesuaian Metode Kerja dengan Realisasi....... 53 4.5.1. Pekerjaan Menentukan Titik Tiang Pancang............................... 53 4.5.2. Kesesuaian Pemancangan Tiang................................................. 53 4.5.3. Kesesuaian Mutu Rencana dengan Realisasi.............................. 54 4.5.4. Kesesuaian Keselamatan dan Kesehatan Kerja (K3) Rencana dan Realisasi ..................................................................................................... 55 4.5.5. Penyebab Ketidaksesuaian dengan Realisasi ..................................................................................................... 55 4.5.6. Tindakan dan Solusi Atas Ketidaksesuain Pekerjaan ..................................................................................................... 56 4.6. Sumber Daya (Material, Peralatan, dan Tenaga kerja) ..................................................................................................... 57 4.6.1. Material ..................................................................................................... 57 4.6.2. Peralatan ..................................................................................................... 58 4.6.3. Tenaga Kerja

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..................................................................................................... 58 4.7. Penetrasi Tiang ..................................................................................................... 61 BAB V KESIMPULAN DAN SARAN..................................................................... 62 5.1. Kesimpulan........................................................................................... 62 5.2. Saran...................................................................................................... 63 DAFTAR PUSTAKA................................................................................................. 65 LAMPIRAN

DAFTAR GAMBAR Gambar 1.1. Lokasi Proyek........................................................................................ 3 Gambar 2.1. Hubungan Kerja Secara Teknis............................................................. 21

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Gambar 2.2. Hubungan Kerja Secara Hukum............................................................ 22 Gambar 3.1. Langkah Pelaksanaan Pondasi Tiang Pancang...................................... 23 Gambar 3.2. Penentuan Titik Pancang....................................................................... 24 Gambar 3.3. Alat Pemancang..................................................................................... 25 Gambar 3.4. Penyimpanan Tiang Pancang................................................................ 25 Gambar 3.5. Shackle Capacity................................................................................... 26 Gambar 3.6. Penentuan Titik Pemancangan.............................................................. 27 Gambar 3.7. Tiang Pancang Dimasukan Pada Bagian Alat....................................... 27 Gambar 3.8. Tiang Pancang Diluruskan Menggunakan Plumb................................. 28 Gambar 3.9. Pemancangan Tiang Kedua................................................................... 28 Gambar 3.10. Penyambungan Tiang Pancang Dengan Metode SMAW.................... 29 Gambar 3.11. Pengambilan Final Set......................................................................... 30 Gambar 4.1. Wilayah Pekerjaan PLTU-2 Cirebon..................................................... 32 Gambar 4.2. Detail Tapak Bangunan Boiler.............................................................. 33 Gambar 4.3. Pondasi Tiang Pancang.......................................................................... 35 Gambar 4.4. Diesel Hammer...................................................................................... 37

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Gambar 4.5. Hydraulic Static Pile Driver (HSPD) dan Diesel Hammer................... 39 Gambar 4.6. Toolbox Meeting................................................................................... 41 Gambar 4.7. Penomoran Tiang per-25 cm................................................................. 42 Gambar 4.8. Penentuan Titik Pancang....................................................................... 43 Gambar 4.9. Proses Pengelasan................................................................................. 45 Gambar 4.10. Penetrant Test...................................................................................... 46 Gambar 4.11. Pengelasan yang Sudah Disetujui........................................................ 47 Gambar 4.12. Final Set............................................................................................... 48 Gambar 4.13. Kalendering......................................................................................... 48

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DAFTAR TABEL Tabel 1.1. Jadwal Kegiatan KP.................................................................................. 5 Tabel 2.1. Material..................................................................................................... 8 Tabel 2.2. Peralatan.................................................................................................... 8 Tabel 2.3. Hammer..................................................................................................... 9 Tabel 2.4. Struktur Organisasi Pelaksana Proyek....................................................... 11 Tabel 4.1. Schedule Pekerjaan Pemancangan............................................................ 40 Tabel 4.2. Data Tiang Uji........................................................................................... 50

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Tabel 4.3. Capwap Results Summaries...................................................................... 53 Tabel 4.4. Material..................................................................................................... 57 Tabel 4.5. Peralatan.................................................................................................... 58 Tabel 4.6. Rencana Mobilisasi Tenaga Kerja............................................................. 59 Tabel 4.7. Pile Schedule............................................................................................. 61

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