岩土工程学报2013，Vol.35Issue(1)：175-180,6.
基于与围岩相互作用的冻结壁弹塑性设计理论
Elastic-plastic design theory of frozen soil wall based on interaction between frozen wall and surrounding rock
摘要
Abstract
The design theory of frozen soil wall is one of the core technologies for mine shaft freezing sinking. The conventional elastic design formula for the thickness of frozen soil wall has large errors when the modulus ratio of the frozen soil wall to the surrounding rock is less than 10. Considering the excavation unloading effect and the interaction between the frozen soil wall and its surrounding rock, an elastic-plastic mechanical model is established for a more rational design of the frozen soil wall. The stress and displacement analytical solutions are deduced. A new elastic-plastic formula for the thickness of the frozen soil wall is developed on the basis of the solutions. The influences of various factors on the thickness of the frozen soil wall are discussed. The analyses show that the proposed formula is more reasonable than the traditional formula of Domke, and the Coulomb-Mohr yield criterion is suggested to calculate the thickness of the frozen soil wall.关键词
冻结壁/围岩/相互作用/弹塑性分析/设计理论Key words
frozen soil wall/ surrounding rock/ interaction/ elastic-plastic analysis/ design theory分类
建筑与水利引用本文复制引用
杨维好,杨志江,柏东良..基于与围岩相互作用的冻结壁弹塑性设计理论[J].岩土工程学报,2013,35(1):175-180,6.基金项目
国家高科技研究发展计划("863"计划)课题(2012AA06A401) （"863"计划）
中央高校基本科研业务费专项资金资助 （）
