【作者】 周晓敏； 罗晓青； 马成炫； 胡启胜；

【Author】 ZHOU Xiao-min,LUO Xiao-qing,MA Cheng-xuan,HU Qi-sheng (School of Civil and Environment Engineering,University of Science and Technology Beijing,100083,China)

【机构】 北京科技大学土木与环境学院；

【摘要】 以研究孔隙型含水岩层为条件,基于流固耦合原理和相似原理,建立了考虑一定围岩范围和深埋高水压岩层井筒力学模型试验,基于模型试验尺寸和试验材料,采用Comsol软件地球模块,建立了考虑围岩和高水压作用下井筒平面应变和有限段高的力学数值模型,对比分析了准平面应变和平面应变数值解与包神解析解三者之间的差异性,以1~#模型试验条件和结果为基础,开展了数值模型、解析模型与实物模型之间的误差分析,揭示了它们之间相互作用变化的真实规律,为高水压基岩段井壁设计提供参考。更多还原

【Abstract】 Based on the study of porous rocky aquifers and mechanics principals of coupled soild and fluid, similarity principal,model test system are set up to do the research of interaction of shaft lining and surrounding rock under high water pressure,therefore using the FEM software of Comsol,plain strain and limit height model of shaft lining considering a certain range surrounding rock under deep and high water pressure are set up according to the dimension and condition of model tests.Two numeral FEM mode of approaching and complete plain strain model are set up,the difference of the analytic of Baoshen plain theory,numeral results among the three of approaching plain strain and complete plain strain are contrast,based on the test 1,the error analysis on the model test,numeral model and analytic solution are studied,the basic law among the interaction of surrounding rock,shaft lining,and high water pressure are studied,which can be referred for shaft lining design and construction.更多还原