Nurmajida, Nabila (2019) Perencanaan Drainase Jalan Tol Pandaan-Malang STA. 15+000 - STA. 30+000. UNSPECIFIED thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Proyek pembangunan jalan Tol Pandaan–Malang bertujuan untuk menghubungkan 2 (dua) kabupaten di Provinsi Jawa Timur yaitu kabupaten Pasuruan dan kabupaten Malang. Jalan tol sepanjang 37,62 km ini merupakan bagian dari jalan tol yang menghubungkan dua kota terbesar di Jawa Timur yaitu Surabaya dan Malang. Terletak di lembah antara dua gunung besar, air hujan yang turun ke daerah gunung akan langsung mengalir ke jalan tol. Agar jalan tol ini dapat digunakan sebagaimana mestinya, diperlukan perencanaan sistem drainase yang baik agar air hujan yang turun tidak menggenang di atas jalan tol yang ditutupi aspal.
Pada tugas akhir ini, awalnya dilakukan studi literatur terhadap perencanaan drainase dilanjutkan dengan melakukan pengumpulan data. Data-data yang diperlukan untuk tugas akhir ini adalah data curah hujan, peta topografi dan layout jalan tol. Setelah mendapatkan data, dilakukan analisis hidrologi untuk mendapatkan debit banjir rencana dan debit limpasan saluran. Selanjutnya dilakukan analisis hidrolika dengan cara mendesain saluran drainase yang nantinya akan digunakan untuk mengetahui kapasitas saluran yang dapat menampung air limpasan. Selain itu, didesain pula gorong-gorong dan jembatan ditempatkan di perpotongan sungai dan jalan tol agar air sungai yang terpotong tetap bisa mengalir.
Berdasarkan analisa hidrologi dari sungai-sungai yang berpotongan, didapatkan debit banjir masing-masing sungai dengan debit banjir terbesar adalah 315.25 m3/s. Debit banjir tersebut digunakan sebagai acuan untuk mendesain gorong-gorong dan jembatan sehingga gorong-gorong terbesar berdimensi 6 meter x 6 meter yang direncanakan menggunakan box culvert sedangkan jembatan terbesar memiliki panjang sebesar 190 m. Dengan analisa hidrologi saluran, didapatkan debit limpasan saluran terbesar adalah 2,188 m3/s. Direncanakan saluran drainase menggunakan beberapa material yaitu pasangan batu kali dan beton precast (U-Ditch) yang disesuaikan dengan kemiringan saluran. Selain itu, direncanakan pula beberapa bangunan pelengkap drainase lainnya yaitu saluran pelindung lereng berbahan dasar beton berdimensi 0.2 m x 0.2 m, pipa deck drain berbahan dasar PVC berdiameter 0.232 m (PVC 8’) serta bangunan terjun dengan tinggi terjunan 0.5 m. Dengan demikian, air yang melimpas pada jalan tol dapat mengalir pada saluran drainase tanpa menggenang di jalan tol.
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The purpose of Pandaan-Malang toll road development project is to connect two particular districts in East Java Province, Pasuruan district and Malang district. This 37,62km long toll road is part of a bigger toll road that connects two of the largest cities in East Java, Surabaya and Malang. Located in the valley between two large mountains, rainwater that fall into mountain area would flow directly to the toll road. In order to be fully functioning, a drainage system planning of toll road is necessary to prevent rainwater from clumping up on the road that is covered in asphalt.
In this final project, study of existing literatures with the subject of drainage planning was first conducted, followed by data-gathering. The data that are necessary for this final project are as follows: rainfall data, topography map, and the layout of the toll road. After gathering the data, a hydrological analysis was done to procure information regarding the flood discharges and the ditch runoff discharges. A hydraulic analysis was then carried out by designing drainage ditchs which would be utilized to obtain the capacity of the ditch to accommodate discharged water. On top of all the above, water tunnels and bridges were also designed to be deployed on the toll road and river intersections so that the rivers would still be able to flow properly unobstructed by the toll road.
Based on the hydrological analysis from the intersecting rivers, the highest acquired value of flood discharge was 315.25 m3/s. The discovered flood discharge value was then used as a reference for designing the water tunnel and the bridge. The largest water tunnel turned out to be 6m x 6m long and would require box culverts, while the largest bridge’s length was 190m. Through hydrological analysis of the drainage ditch, the largest ditch runoff discharge value was discovered to be 2,188m3/s. The drainage ditch was also planned to require the following materials : pairs of river stones and precast concrete (U-Ditch) that are adjusted accordingly with the ditch’s slope. Furthermore, several complementary structures of drainage system was also included in the plan, such as slope-protecting ditch which has a concrete with a length of 0.2m and a width of 0.2m as the base material, deck drain pipe using a 0.232m diameter PVC (PVC 8’) and drop structure with a height of 0.5m each drop. Therefore, water spilling on the toll road would be able to flow through the drainage ditch without accumulating on the toll road.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Additional Information: | RSS 627.54 Nur p-1 2019 |
| Uncontrolled Keywords: | Drainase, Jalan Tol, Pandaan-Malang |
| Subjects: | T Technology > TE Highway engineering. Roads and pavements > TE215 Drainage |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | Nurmajida Nabila |
| Date Deposited: | 02 Jun 2022 03:27 |
| Last Modified: | 18 Apr 2024 09:13 |
| URI: | http://repository.its.ac.id/id/eprint/68095 |
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