S316省道K63+280～+540二次滑坡成因分析及综合治理措施  

Cause Analysis of Secondary Landslide along K63+280～+540 of the Provincial Road S316 and the Comprehensive Control Measures

作　　者：肖西卫[1] 满高峰[1] 沈宇鹏[2,3] 

机构地区：[1]中交公路规划设计院有限公司,北京100088 [2]北京交通大学土木建筑工程学院,北京100044 [3]北京交通大学轨道工程北京市重点实验室,北京100044

出　　处：《路基工程》2014年第6期112-117,共6页Subgrade Engineering

基　　金：国家自然科学基金(50908012)

摘　　要：以S316省道K63+280^+540段二次滑坡治理为工程背景,分析了该滑坡成因和类型,提出了采用轻型支挡+预应力锚索+微型桩的联合支护结构,并结合多种疏排水措施综合治理方案;采用深层测斜监测手段验证二次滑坡治理方案的适宜性。治理措施竣工后,位于防撞墙外侧的CX3,CX4,CX5水平位移增量明显减少,验证了治理方案的合理性。Grounding on the landslide control project along K63 ＋ 280 - ＋ 540 Section of Provincial Road S316, this paper analyzed the causes and type of the landslide and then, in relation to which a support structure combining light retaining structure, prestressed anchor cable and micropile was suggested with multiple control schemes of drainage measures; in addition, in-depth bore-hole surveying and monitoring means were used to verify the suitability of the control measures. As a result, the increment of horizontal displacement at CX3, CX4 ＆ CX5 outside the bump wall presented a remarkable decrease after comptetion, thus verifying the control measures＇ reasonability.

关 键 词：二次滑坡 成因 稳定性分析 综合治理措施 

分 类 号：U416.163[交通运输工程—道路与铁道工程]