带立柱浅基础侧向极限承载力探讨

在分析影响带立柱浅基础倾覆机理和侧向稳定性的基础上,综合考虑桩前土的破坏模式,结合极限分析上限定理,推导了构筑物基础的侧向承载力极限公式。结果表明,公式中通常取n=2或3即可满足要求,应用该公式对相关构筑基础进行分析,针对不同土体的安全系数要求,可以得到其满意的设计结果。本文的研究结果为浅基础侧向承载力的计算提供了一种新的途径。

Study on transverse limit capacity of shallow foundation with short pile

Through analysing the stability principle of the shallow foundation with short pole,combined with failure mode of soil before pile and upper rule of limited analysis method,theory solutions of transverse limit capacity about structure foundation were deduced.The theoretical solutions were verified throuth the engineering pratice contrasted with the standard formula,when n=2 or 3,it satisfies the practical engineering,and the results are reasonable.The research results can provide an new approach to calculate transverse limit capacity of shallow foundation.