PERANCANGAN DINDING PENAHAN TANAH PADA PENANGANAN LONGSORAN JEMBATAN LESAN KABUPATEN BERAU PROVINSI KALIMANTAN TIMUR

Abstract

Retaining wall is a building built to withstand a steep collapse of soil or
slopes built in a place where steadiness can not be guaranteed by the slope of the
soil itself. The retaining wall building is used to withstand lateral soil stress caused
unstable unstable ground. The building is widely used on projects: irrigation,
roads, ports, and others.
The landslide that occurred on the Lesan bridge of Berau district of East
Borneo Province has damaged some roads and is feared will damage the abutment
structure of the bridge if not handled quickly and accurately.
The method used in analyzing the stability of the retaining wall in the
landslide is by using Coulomb and Rankine methods, while the method used in
analyzing the carrying capacity of soil occurring using Terzaghi method.
From the calculation results can be concluded that, the dimension of the
retaining wall is 6 meters high and 1 meter wide body, 0,8 meters thick plate with
20 and 25 meters per segment review. Secure the stability of a retaining wall is to
bolster however effect the shear, so that the necessary foundation piles is required.