山西省高速公路不同滑坡类型的贡献率研究  

Contribution Rate Research of Landslide Type of Shanxi Express way

作　　者：成永刚[1] 

机构地区：[1]广东省公路勘察规划设计院,广州510507

出　　处：《地下空间与工程学报》2009年第1期188-191,共4页Chinese Journal of Underground Space and Engineering

摘　　要：山西省地层受地质构造影响,地形复杂,地质条件较差,高速公路在修建的过程中经常发生滑坡灾害,成为高速公路建设的瓶颈和关键技术问题。为有效改变这种被动的现状,文章通过对山西省已建8条高速公路的75处滑坡的归纳总结,将滑坡根据滑体物质的不同分为切层、顺层、破碎岩石滑坡及黄土、粘土、堆积土滑坡。文章利用贡献率法,对不同类型滑坡的贡献进行了分析研究,得出了顺层滑坡及粘土滑坡是山西省高速公路最发育的滑坡类型。而省内自然界较为发育的黄土滑坡,则由于初期选线时的重视,而对高速公路滑坡发育的贡献率最低。所得分析结论与实际情况吻合较好,可为以后山西省高速公路的规划建设提供借鉴参考。In Shanxi province the stratum is affected by its geological structure, the topography is complex and geology is vulnerable, during expressway construction, landslides often appear, and this problem became bottle neck and key technology. For effective change of this condition, according to generalization for 75 landslides of 8 existed expressways in Shanxi province, landslides are divided into different types, namely, slit bedding landslide, bedding landslide, fragmenting rock landslide, loess landslide, clay landslide and eumulose landslide. This paper uses contribution rate method to analyze and study these different types of landslide, it is concluded that bedding landslide and clay landslide are the most developed type of landslide in Shanxi province. While loess landslide is relatively developed in nature in Shanxi province, because of premium at the stage of route choice, its contribution is small to landslide development of expressway. The conclusion conforms to the reality, so this paper can provide idea and reference to planning and construction of expressway in Shanxi province in the future.

关 键 词：山西省 高速公路 滑坡 贡献率 

分 类 号：P642.22[天文地球—工程地质学]