有关基坑开挖中地基弹簧系数的变化  

Change of Horizontal resistance factor of foundation during excavation

作　　者：文行武[1] 

机构地区：[1]福建省建筑科学研究院,福州350025

出　　处：《福建建设科技》2010年第1期21-22,3,共3页Fujian Construction Science & Technology

摘　　要：本文根据软土的室内应力路径与软土的卸荷模量的关系试验研究,推导了适用于增量有限元模型地基弹簧系数的公式,对基坑分步开挖及支护结构设计计算、软土隧道施工等岩土工程问题有较大的实用价值。Based on the indoor stress path test on soft clay, a new formula in reference to horizontal resistance factor is conducted. It involves unloading modulus data in increment FEM and is rather valuable to the design of multiple step excavating and supporting process, this paper also researches deep pit supporting system with pole system FEM,and obtains some beneficial conclusions.

关 键 词：弹簧模型 卸荷模量 增量有限元 地基弹簧系数 

分 类 号：TU470[建筑科学—结构工程]