采矿与安全工程学报Issue(1)：83-87,5.DOI:10.13545/j.cnki.jmse.2016.01.013
基于数值模拟和Mindlin解的煤矿井塔纠偏研究
Study of rectifying shaft tower based on numerical simulation and Mindlin’s equation
摘要
Abstract
The theoretical calculation and application based on the Mindlin’s Stress Equations have been widely used in Piled raft foundation, soil nailing wall, rock bolt foundation, etc., while rarely used in rectifying the tower, which has rigid connection with the shaft. Stress relief method has been suc-cessfully used in rectifying building but none in rectifying shaft tower. Numerical simulation and the Mindlin’s equations have both been utilized to verify that the stress relief method is effective in rectify-ing shaft tower. The results of Mindlin’s equations have been revised by considering the unloading ratio of the excavation, and they are in great accordance with the numerical simulation results. Both of them have shown that stress relief method can be successfully used in shaft tower rectification;and that in-creasing the width of the stress relief area, shortening the distance between stress relief hole and shaft tower, deepening the stress relief hole and increasing the diameter of the stress relief hole can effective-ly enhance the rectifying performance.关键词
井塔纠偏/应力解除法/三维有限元/Mindlin解Key words
tower rectifying/stress relief method/3D finite element/Mindlin’s equations分类
矿业与冶金引用本文复制引用
曾卫,马金荣,文凯,朱坤朋,何亚,杨翰..基于数值模拟和Mindlin解的煤矿井塔纠偏研究[J].采矿与安全工程学报,2016,(1):83-87,5.基金项目
江苏省建筑安全与减灾工程技术研发中心开放课题项目(SAQZX2011-5)；江苏省高校科研成果产业化推进项目(JHB2012-69) （SAQZX2011-5）
