设置排水管的挡土墙墙后地下水面线空间分布的计算方法  

A calculation method for spacial distribution of surface profile of ground water behind retaining wall with drainage-piping

作　　者：王云仓[1] 顾辉[2] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]水利部河北水利水电勘测设计研究院,天津300250

出　　处：《水利水电技术》2005年第5期46-47,共2页Water Resources and Hydropower Engineering

摘　　要：对于挡土高度较大的挡土墙,当墙后填土中的地下水位很高时,会对挡土墙的稳定和地基中应力和不均匀系数造成非常不利的影响.为了解决这个问题,经常采用在挡土墙中布置排水管的办法来解决.正确计算墙后的地下水面线,对确定挡土墙的断面尺寸和保证挡土墙在运行中的安全非常重要.采用布辛尼斯克(Boussinesq)方程,采用高斯—塞得尔迭代法求解,可以求出墙后地下水面线的空间分布.据此设计人员可以确定排水管的布置,计算墙后地下水的作用,确保挡土墙的安全.When the surface profile of the ground water behind the retaining wall with higher retaining height is very high, unfavorable effects are to be caused on the stability of the wall and the foundation stress and non-uniformity coefficient. For solving this problem, drainage-piping is often arranged in the retaining wall. The correct calculation of the surface profile of the ground water behind the wall is quite important to ensure the section size and the safe operation of the wall. Under this circumstance, Boussinesq equation and Gauss-Seidel iterative solution can be used to find the spacial distribution of the surface profile of the ground water behind the retaining wall; by which the arrangement of the drainage-piping and the effect from the grounder water can be determined so as to ensure the safety of the wall concerned.

关 键 词：挡土墙 排水管 水面线 

分 类 号：TU476.4[建筑科学—结构工程] TV13[建筑科学—土工工程]