摘要
土体的抗剪强度是土体的主要强度指标之一。当土体中存在渗流时 ,由于水流的力学、物理、化学等作用 ,会使土体的抗剪强度发生变化 (主要趋势是使抗剪强度降低 )。本文定量分析了各种情况下渗流作用对土体抗剪强度指标、有效应力及切向力的影响 ,得到了渗流作用下土体抗剪强度的定量表达式 ,并给出应用算例 ,说明了渗流对土体抗剪强度的明显影响。
The shearing strength is one of the main indexes of rock mass. The existence of seepage through soil mass makes the shearing strength change (mainly become smaller) because of the mechanical, physical and chemical reaction of water flow. The quantitative effect of seepage on the shearing strength of soil mass is analyzed under several cases in this paper, in which the indexes of shearing strength and , the effective stress, and the shearing force are discussed. A calculation example is also given to show the obvious effect.
出处
《西北水资源与水工程》
2001年第1期12-13,共2页
Northwest Water Resources & Water Engineering
基金
陕西省自然科学研究计划项目! (99C2 2 )
关键词
土体
渗流
节理
抗剪强度
有效应力
渗流体积力
Seepage through Soil Mass
Shearing Strength
Effective Stress
Shearing Force
