摘要
西南山地、丘陵的碳酸盐岩区地形起伏大,有岩溶槽谷、陡坎等特殊地貌,这一区域电力工程中的填方边坡横向剖面沿边坡走向变化剧烈,边坡设计中不宜简化为平面问题。采用三维强度折减法,可根据实际的地貌变化、地层分布和边坡形状建立有限元分析模型。通过分析可以获得填方边坡受力状态、变形情况及稳定性系数,为工程设计提供依据。对比不同处理方式下边坡稳定性计算结果,从而探索岩溶槽谷地貌上填方边坡的合理设计方案。
The landform of electric power project in mountainous and hilly region of southwest China is generally large terrain variation,which has special geomorphologies such as gully and scarp.The section of filled slope in these projects vary intensely along slope trend.Sampling the slope stability problem to plane problem is not suitable in this situation.A model can be erected by 3D strength reduction method,with full information of landform variation and soil layer distribution.The stress state,deformation regular and safety factor of filled slope can be got from the calculation result of 3D model.The best design plan of high-filled slope on gully are discussed by comparing the calculation results of different plans.
作者
郑中
何铠岐
冯波
鄢明章
ZHENG Zhong;HE Kaiqi;FENG Bo;YAN Mingzhang(Southwest Electric Power Design Institute Co.,Ltd.of China Power Engineering Consulting Group,Chengdu 610021,China)
出处
《电力勘测设计》
2023年第7期54-59,共6页
Electric Power Survey & Design
关键词
强度折减法
碳酸盐岩区
高填方
边坡工程
strength reduction method
carbonate rock area
high filling
slope engineering
