人民长江Issue(6)：7-11,5.
膨胀土裂隙对渠坡稳定的影响分析
Analysis of influence of expansive soil fissure on canal slope stability
摘要
Abstract
According to geological logging data, the basic fissure characteristics of expansive soil canal slope of Nanyang sec-tion of Middle Route Project of South-to-North Water Diversion is described and the influence of expansive soil fissure on the canal slope stability is analyzed. Meanwhile, under the assumed conditions of sliding surface combination form, tension fissure location and sliding surface search, the priority of influential factors of sliding surface dip angle to canal slope stability are ana-lyzed by orthogonal test. The analysis results show that the fissure scale, fissure surface morphology and fissure filling can be ex-pressed by anti-shear strength;gently low-angle and moderate dip angle sliding interfaces have larger influence on the canal slope stability, and if the low-angle dip and moderate dip angle fracture orientation is the same as the canal slope's, the canal has a higher landslide chances.关键词
裂隙/膨胀土/极限平衡法/正交试验/渠坡稳定/南水北调中线工程Key words
fissure/expansive soil/limit equilibrium method/orthogonal test/canal slope stability/Middle Route Project of South-to-North Water Diversion分类
天文与地球科学引用本文复制引用
王磊,冷星火,黄炜,麻斌..膨胀土裂隙对渠坡稳定的影响分析[J].人民长江,2014,(6):7-11,5.基金项目
国家“十二五”科技支撑计划项目(2011BAB10B02) （2011BAB10B02）
