摘要
在一般土力学及挡土墙研究中,计算土压力的方法往往是传统的朗肯土压力理论和库仑土压力理论,其都是建立在半无限土体假定基础上的。由于城市用地紧张,建筑物与支护结构的距离常常比较小,支护结构的作用越来越复杂。城市开发建设过程中,不仅要保证自身的稳定性、经济性,还要保证临近建筑物和设施的安全。对四种有限土体土压力计算方法进行推导探究,分析对比得到在同等条件下,利用极限平衡受力分析法所得到的有限土体土压力值较小,更具经济效益,而在不同的地层和墙间距情况下不同的算法有不同的特点,充分考虑特殊条件下的土压力计算方法,可以使施工设计方案更优化。
In the general study of soil mechanics and retaining walls,the calculation method of earth pressure is often the traditional Rankine＇s earth pressure and the Kulun＇s earth pressure theory,which are based on the semi infinite soil assump tion.Because of the tense city land,the distance between building and supporting structure is often relatively small,and the role of supporting structure is more and more complex.Not only to keep its stability and economy but also to ensure the safety of ad jacent buildings and facilities in the process of urban development and construction.This paper deduced the calculation method of four kinds of finite earth pressure,we get the results that using the limit equilibrium stress analysis to get the limited soil pressure values are smaller and more economic than the other methods under the same conditions.And the formation and the wall distance under different situations have different characteristics in different algorithms.Considering the special conditions of soil pressure calculation method can make the construction design better.
出处
《岩土工程技术》
2014年第4期177-182,共6页
Geotechnical Engineering Technique
关键词
有限土体压力
折减系数
计算方法
对比探究
finite earth pressure
reduction factor
computational method
contrast inquiry
