摘要
地下室侧墙、基坑侧壁侧压力的计算通常只考虑土压力和静水压力作用,没有考虑渗流对侧墙和基坑土压力的作用,使计算值和实测值相差较大。在渗流作用下,渗流力使土的有效应力大小发生改变,从而影响土的抗剪强度。通过计算阻碍力和渗透力的相互作用,建立求解未知数方程,得到计算侧向压力的新方法,对应于不同地质状况,使侧压力的计算符合实际情况。
Only earth pressure and water pressure are usually considered for calculating lateral pressure of basement lateral wall and supporting structures.Nonconsideration of groundwater seepage is one of the main reasons why measured values of waterearth pressure on supporting structures are generally very different from those calculated values.Under the action of seepage,its force change the soil effective stress and affect the soil shear strength.Mechanical effects of groundwater seepage on earth pressure are researched and the hindering force and seepage force were considered together.By setting up differential coefficient equations and constructing a set of entire new calculation expressions on the foundation pit are presented with consideration of groundwater seepage.Corresponding to different geological conditions,this new method for calculating lateral pressure is more practical and exactitude.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第13期80-83,共4页
Journal of Wuhan University of Technology
关键词
侧压力
水土压力
阻碍力
渗流力
水压力
lateral pressure
water-earth pressure
hindering force
seepage force
water pressure
