Analisis Stabilitas Dinding Penahan Tanah pada Bendungan Daerah Irigasi Serdang

Abstract

Bendung adalah pembatas yang dibangun melintasi sungai untuk mengubah karakteristik aliran sungai, Pembangunan bendung berlokasi di Kabupaten Deli Serdang. Pada bendung daerah irigasi serdang diteliti dinding penahan tanah, dinding penahan tanah merupakan struktur dinding yang dibuat untuk menahan erosi atau pergerakan pada tanah miring, dinding penahan tanah yang dibangun ialah tipe counterfort, pada penelitian ini dianalisis perhitungan kestabilan dinding penahan tanah yaitu kestabilan terhadap gaya geser, gaya guling, dan kestabilan terhadap kapasitas daya dukung tanah, metode perhitungan yang digunakan ialah metode Rankine dan Terzaghi. Metode penelitian menggunakan data primer, yaitu dengan observasi di lapangan secara langsung berupa wawancara, dan data sekunder, yaitu data dari pihak kontraktor maupun dapat diperoleh dari buku, penelitian terdahulu, dan lain sebagainya. Berdasarkan hasil perhitungan dinding penahan tanah tipe counterfort dapat disimpulkan bahwa perhitungannya aman terhadap stabilitas guling, aman terhadap stabilitas geser, dan aman terhadap kapasitas daya dukung tanah. Bendung is a barrier built across the river to change the characteristics of river flow, Bendung development is located in Deli Serdang Regency. In the bend of the irrigation area, examined the retaining wall of the soil, the retaining wall of the soil is a wall structure made to withstand erosion or movement in the sloping soil, The ground retaining wall built is a counterfort type, in this study analyzed the calculation of the stability of the ground retaining wall, namely the stability of the shear force, roll force, and stability to the carrying capacity of the soil, the method of calculation by rankine and terzaghi. Research methods use primary data, namely by observation in the field directly in the form of interviews, and secondary data, namely data from the contractor or can be obtained from books, previous research, and so on. According to calculations of counterfort clay holding walls, it is expected that the figure is safe for rolling stability, safe for sliding stability, and safe for the supporting capacity of the land.