三峡库区消落带岸坡稳定性分析及抗滑桩内力研究  

Stability analysis of bank slope in fluctuating zone of Three Gorges reservoir area and study on inter force of anti-slide pile

作　　者：张建胜 ZHANG Jian-sheng

机构地区：[1]赣州市水利电力勘测设计研究院,江西赣州341000

出　　处：《东北水利水电》2020年第7期1-3,33,71,共5页Water Resources & Hydropower of Northeast China

摘　　要：文中以重庆巫山县消落区的江东段典型岸坡为例,分别通过毕肖普法和强度折减法计算其岸坡安全系数及对采用抗滑桩加固后内力变化规律进行分析。结果表明:有限元强度折减法得到的安全系数比毕肖普法得到的安全系数大;强度折减法因未对计算单元进行力的简化,计算结果与实际情况更为接近。通过采用抗滑桩加固措施,岸坡稳定性得到显著提高。抗滑桩轴力随着入土深度增加抗滑桩轴力呈现先增大后减小的规律;抗滑桩剪力呈现"Z"字形变化规律。Taking the typical bank slope of the Jiangdong section of the Wushan County in Chongqing as an example,The safety coefficient of the bank slope are calculated by comparing the Bishop method and the strength reduction method respectively and the internal force variation law after the reinforcement of anti-slide pile is analyzed.The results show that the safety coefficient obtained by the finite element strength reduction method is higher than that obtained by the Bishop method.The calculation result of strength reduction method is closer to the actual situation because it does not simplify the calculation unit's force.The stability of bank slope is improved obviously by adopting anti-slide pile reinforcement measures.The axial force of anti-slide pile increases first and then decreases with the increase of soil depth.The shear force of anti-slide pile changes in the shape of"Z".

关 键 词：岸坡稳定 毕肖普法 强度折减法 加固治理 抗滑桩内力 三峡库区 

分 类 号：TU751[建筑科学—建筑技术科学]