Soaedy, Febbri Herning (2017) Perencanaan Sistem Drainase Stadion Wergu Wetan Kabupaten Kudus. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Stadion Wergu Wetan Kabupaten Kudus saat ini masih menggunakan sistem drainase permukaan (surface drainage). Saat hujan, air yang jatuh di lapangan akan langsung diteruskan ke saluran sisi lapangan. Tetapi melihat kondisi permukaan lapangan sepakbola yang tidak rata, menyebabkan air hujan yang jatuh tidak langsung dialirkan ke saluran sisi lapangan sehingga menyebabkan genangan air dibeberapa titik. Masalah lain di saluran sisi lapangan yang sudah tidak memungkinkan lagi untuk menyalurkan debit limpasan ke saluran pembuang (outfall). Untuk mengatasi permasalahan drainase tersebut, maka direncanakan sistem drainase bawah permukaan (subsurface drainage).
Tugas akhir ini akan merencanakan sistem drainase bawah permukaan (subsurface drainage), oleh karena itu dilakukan beberapa analisis antara lain analisis tanah, analisis hidrologi, dan analisis hidrolika. Analisis tanah untuk menentukan koefisien permeabilitas serta laju infiltrasi tanah, analisis hidrologi untuk mendapatkan debit saluran rencana, serta analisis hidrolika untuk menentukan jarak pipa, kapasitas, dan dimensi saluran surface maupun subsurface.
Dari hasil analisis yang telah dilakukan, didapatkan nilai porositas ne= 0,31, koefisien permeabilitas k=50 mm/jam, laju infiltrasi v= 100 mm/jam dan tinggi curah hujan rencana periode ulang 5 tahun sebesar 190,765 mm, sehingga direncanakan kedalaman pipa 60 cm dari permukaan lapangan, dengan diameter 10 cm dan jarak antar pipa 2 m. Waktu konsentrasi (tc)= 2,196 jam dengan debit banjir rencana (Q)= 0,1387 m3/dt. Dimensi saluran surface di hulu adalah 0,30 m x 0,40 m, dan di hilir 1 m x 1 m. Perencanaan saluran surface menggunakan beton pracetak (U-Ditch) dari PT. Varia Usaha Beton. Dengan menerapkan konsep “zero ΔQ” dengan debit ijin keluar stadion adalah 0,109 m3/dt, maka direncanakan kolam tampung dimensi 20 m x 24 m dengan kedalaman 2,2 m. Debit maksimum setelah dilakukan analisis kolam tampung dengan pintu air dan pompa adalah sebesar 0,106 m3/dt, sehingga tidak membebani saluran kota.
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Kudus’s Wergu Wetan Stadium is designed using surface drainage system. As the rain fall, the water will be directly flowing to the side channel of the field. The condition of football field isn’t flat, and it makes the rainwater can’t directly flowing to the side channel of the field, as a consequences is flood at some point. The other problems on the side of the field that is impossible to flow the runoff volume to the outfall. Therefore,it can be plan to use the subsurface drainage system.
This final project raise the design of subsurface drainage system, therefore some analyzed should be done such as soil analysis, hydrology analysis and hydraulics analysis. The analysis of the soil aims to determine the permeability coefficient and infiltration. Hydrology analysis aims to obtain the discharge plan. Then, hydraulics analysis aims to determine the distance between the pipes, storage capacity, the dimension of the surface and also the dimension of subsurface channel.
Through the analysis, it can be concluded that the gain value of porosity, ne= 0,31, coefficient of permeability k= 50 mm/h, infiltration rate v= 100 mm/h and top rainfall plan 5-years returned period amounted to 190,765 mm, so the planned depth of pipe is 60 cm from surface field with 10 cm of diameter and the distance between the pipes are 2 m. Time of concentration (tc)= 2,196 hours with the flood discharge plan (Q)= 0,1387 m3/sec. The upstream dimension channel is 0,30 m x 0,40 m, and the downstream channel 1 m x 1 m. Surface channels are using precast concrete (U-Ditch) by PT. Varia Usaha Beton that use the concept of “zero ΔQ”, with permitting discharge outflow of the stadium is 0,109 m3/sec, then the design of water storage will be planned 20 m x 24 m in a depth of 2,2 m of dimension. The maximum discharge after done by water storage plan with sluice gate and pumps are 0,106 m3/sec, so it is not overloaded for the city channels.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Sistem Drainase Stadion, Subsurface Drainage, Kolam Tampung, Routing Method, U-Ditch, Stadium Drainage System, Subsurface Drainage, Reservoir, Routing Method, U-Ditch |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | Febbri Herning Soaedy |
| Date Deposited: | 02 Mar 2017 04:16 |
| Last Modified: | 05 Mar 2019 04:32 |
| URI: | http://repository.its.ac.id/id/eprint/1778 |
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