【作者】 王铭明； 陈健云； 马荣峰；

【Author】 WANG Mingming;CHEN Jianyun;MA Rongfeng;Faculty of Electric Power Engineering, Kunming University of Science and Technology;State Key Laboratory.of Coastal and Offshore Engineering, Dalian University of Technology;

【机构】 昆明理工大学电力工程学院； 大连理工大学海岸与近海国家重点实验室；

【摘要】 水库岸边滑坡是水利工程建设中常见且亟待处理的复杂工程性问题。针对直苴水库施工过程中出现的上游右岸中型滑坡问题,本文首先根据初设阶段的地质勘查及灾害调查分析了产生滑坡的成因,并且提出了合理的滑坡治理措施。采用有限元法对原状边坡进行了验算得知其安全系数为1.01,说明原状边坡自然情况下已处于临界状态,验证了强降雨诱发了滑坡灾害的发生;采用强度折减有限元法对除险加固的边坡进行稳定性分析,确定了本文提出的削坡减载及预应力锚索加固方案的合理性和安全性。工程实践表明,除险加固的右岸边坡在一年中多次强降雨工况的检验,仍无潜在滑坡的可能性。更多还原

【Abstract】 The landslide on reservoir bank is a common and complicated engineering problem in the construction of water conservancy projects. In view of the problems of medium-sized landslides in the construction of Zhiju reservoir, this paper firstly analyzes the causes of the landslide based on the geological exploration and disaster investigation, and puts forward reasonable measures of landslide treatment. The undisturbed slope is checked by finite element method and its safety coefficient was 1.01,which indicated that the undisturbed slope is in a critical state under natural conditions, and verified that the landslide disaster is induced by heavy rainfall. The strength reduction finite element method is used to analyze the stability of the slope reinforced, and the rationality and safety of measures of the slope cutting and unloading and the pre-stressed anchor cable reinforcement proposed are confirmed. The engineering practice shows that there is still no possibility of potential landslide on the right bank slope reinforced after the inspection of several times of heavy rainfall in a year.更多还原