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An investigation of landslides in Bukit Aman and Puncak Setiawangsa, Kuala Lumpur, Malaysia

机译:在马来西亚吉隆坡武克阿曼和旁遮普岛屿旁遮普岛山上滑坡调查

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Landslides occur almost every year in Malaysia, especially during rainy season. Massive landslides can cause extensive damage and fatalities. An investigation has been carried out on two (2) landslides in Kuala Lumpur at two (2) different geological formations known as Kenny Hill and Hawthornden Schist. Kuala Lumpur, located at the southwest part of Peninsular Malaysia is covered by flat and hilly terrain. In the tropical region such as Kuala Lumpur most of the landslides were associated with residual soils. The purposes of the present study are therefore to examine the engineering properties of residual soil as input for slope stability analysis, to develop models of slope stability of failed soil slopes at Bukit Aman and adjacent slopes of Puncak Setiawangsa, to identify the causal factor contributing to the landslides and to recommend suitable rectification works. A well-established computer program 'SLOPE/W' developed by GEOSLOPE was deployed by adopting a limit equilibrium method (LEM) to determine the factor of safety (FOS) for the slopes. Based on the results, the FOS were less than 1.5 signify the inherently unstable slopes. In regard to the investigation, the failure at Bukit Aman can be classified as a shallow failure while in the case of the adjacent slopes of Puncak Setiawangsa, a catastrophic landslide could happen if the slopes strengthening structures, "pre-stress ground anchors" lose their holding capacity. The landslides in these study areas may be attributed to a combination of several factors such as steep slope, lack of drainage system, erosion and lack of ground anchors maintenance.
机译:几乎每年都会发生山体滑坡在马来西亚,尤其是在雨季。大规模山体滑坡可造成广泛的破坏和伤亡。调查已经在两个(2)不同的地质称为肯尼·希尔和霍索恩登片岩编队在吉隆坡两(2)山体滑坡进行。吉隆坡位于马来西亚半岛的西南部分由平盖和丘陵地形。在热带地区如吉隆坡大部分滑坡用残留土壤相关联。因此,本研究的目的是检查剩余土的工程性质边坡稳定分析输入,制定在武吉安曼和失败土坡边坡稳定的模型亚峰Setiawangsa的相邻斜坡,以识别有助于致病因素山体滑坡,并推荐合适的整改工作。通过GEOSLOPE开发的公认的计算机程序“SLOPE / W”被采用极限平衡法(LEM),以确定安全(FOS)为斜率因子展开。根据调查结果,该FOS均小于1.5,则意味着固有的不稳定斜坡。关于调查,在武吉阿曼出现故障,可如果斜坡加固结构,“预应力地锚”失去被归类为浅失败而在亚峰Setiawangsa的邻近斜坡的情况下,一个灾难性的滑坡可能发生的保持能力。在这些研究领域的滑坡可以被归结为几个因素,如陡坡相结合,缺乏排水系统,侵蚀和缺乏的地锚维护。

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