波诺罗戈-太平洋公路258公里滑坡成因分析

Rekayasa Sipil Pub Date : 2022-05-12 DOI:10.21776/ub.rekayasasipil.2022.016.01.9

Miftahul Avidatur Rohmah, A. Rachmansyah, Harimurti Harimurti

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引用次数: 0

摘要

2017年12月，Pacitan - Ponorogo路线上发生山体滑坡的地点之一是KM 258。该位置有3个相邻的边坡段，第一段和第二段发生滑坡，为防止第三段滑坡，对Â边坡进行了调查。采用运动学分析方法，利用DIPS程序确定边坡破坏类型，得到边坡的圆形破坏类型。研究边坡的RMR岩体权重为52 (III类)，岩石类型为中等，III类RMR岩体与SMR的相关性为推荐坡角55°。经过80°、75°、70°、65°、60°~ 55°角度的边坡稳定性模拟，有效角度为70°，FS值为1.6。

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Landslides Mechanism Analysis at Km 258 Ponorogo – Pacitan Road

One of the locations where landslides occurred on the Pacitan - Ponorogo route was at KM 258 in December 2017. At that location there are 3 adjacent slope segments, the first segment and the second segment had landslides, to prevent landslide at the third segment investigation was carried out on Â the slope. Kinematics analysis method was used using the DIPS program to determine the slope failure type and to obtain the circular failure type. The weighting of RMR rock mass on the slopes studied obtained value of 52 (class III) where the rock type is moderate, and the correlation with the SMR on class III RMR rocks is the recommended slope angle of 55°. After slope stability simulation at angles of 80°, 75°, 70°, 65°, 60° to 55°, the effective angle is 70° with an FS value of 1.6.

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Rekayasa Sipil

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审稿时长

24 weeks