Rock slope stability analysis along NH-44 in Sonapur area, Jaintia hills district, Meghalaya

被引：9

作者：

Sarkar K. ^{[1
]}

Buragohain B. ^{[1
]}

Singh T.N. ^{[2
]}

机构：

[1] Department of Applied Geology, Indian School of Mines, Dhanbad

[2] Department of Earth Sciences, Indian Institute of Technology Bombay, Mumbai

来源：

Journal of the Geological Society of India | 2016年 / 87卷 / 3期

关键词：

Kinematic Analysis; Meghalaya; Slope Stability; SMR; Sonapur;

D O I：

10.1007/s12594-016-0398-5

中图分类号：

学科分类号：

摘要：

Occurrences of landslide are most common and critical issue in North-East India. The various types of slope failures have been affected most part of slopes and road section between Malidor to Sonapur area (approx 30 Km) along NH-44 within Jaintia hills district, Meghalaya, India. These slope failures causes considerable loss of life and property along with many inconveniences such as disruption of traffic along highways. The unscientific excavations of rock slopes for road widening or construction purposes may weaken the stability of the slopes. The rocks exposed in the area are highly jointed sandstone and shale of Barail Group of Oligocene age. The Sonapur landslide is most dangerous and destructive rock fall-cum debris flow. The present study includes the kinematic analysis of the slope to assess the potential failure directions as the rocks are highly jointed in some parts of road cut sections. The continuous slope mass rating (CSMR) technique has been applied for slope stability analysis at five vulnerable locations. Kinematic analysis indicates mainly wedge type of failure along with few toppling and planar failures. These failure required immediate treatment to prevent the slide and long term stability of the slope. © 2016, Geological Society of India.

引用

页码：317 / 322

页数：5

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