摘要
用有限元法对含水层注浆加固前后井壁竖直附加力的大小及其变化规律进行了深入分析和研究，得出了注浆加固宽度、加固距离、含水层固结压缩量等参数与井壁附加力及其折减率的关系．结果表明，井壁附加力折减率与含水层加固宽度呈线性关系；与加固距离呈二次非线性关系，加固宽度一定时，存在一个最佳加固距离；井壁附加力折减率与含水层疏水压缩过程无关．
With the FEM simulation, the varying laws and the value of the vertical additional stress on shaft wall before and after aquifer grouting are deeply studied. And the effects of the grouting reinforcement width, the reinforcement extent, the aquifer consolidation compression modulus etc. on the additional and its reducing ratio are also discussed. The results show that the reducing ratio of the additional stress is obviously proportional to the width of aquifer grouting and varies with the reinforcement extent nonlinearly; there is an optimum reinforcement extent when the reinforcement width keeps constant; the reducing ratio has nothing to do with the compressing process of aquifer water drainage.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1998年第2期135-139,共5页
Journal of China University of Mining & Technology
基金
煤炭系统回国人员基金
关键词
含水层加固
附加力
矿井
井壁
围岩
相互作用
aquifer reinforcement, additional stress on shaft wall, reducing ratio of additional stress
