疏水围土中立井井壁破坏机理研究动态与井筒结构力学构想

Development in the Causes of Shaft Lining′s Destruction in Surrouding Soil from Water Drainage and Some Ideas on the Mechanics of Shaft Structure

综述了疏水围土中立井井壁破坏机理的研究成果．在此基础上，对建立疏水围土中立井井筒结构力学体系提出了构想：一是载荷的分类与计算，包括初始载荷、井壁负摩擦力以及变温荷载等；二是井壁的应力分析，探讨了各类载荷下井壁工作应力计算的合理模型．

It has comprehensively stated the research result of shaft lining′s destruction caused in surrounding soil from water drainage. Some ideas on the mechanics system of the shaft structure in surrounding soil from water drainage are proposed as following: (1)the sorting and calculating of the loads, including the initial load, negative frictional forces of shaft lining and the load result from changeable temperature and so on. (2)the stress analysis on shaft lining. It also discusses the reasonable models for calculating the shaft lining′s working stress in each sort of the loads.