采矿与安全工程学报2026，Vol.43Issue(3)：653-662,10.DOI:10.13545/j.cnki.jmse.2025.0143
立井帷幕注浆后井壁-注浆体-围岩三元非均匀阻水结构水压传递特性及现场应用
Water pressure transmission characteristics and field application of the shaft wall-grouting body-surrounding rock tri-element heterogeneous water-resisting structure following vertical shaft curtain grouting
摘要
Abstract
The study on the water pressure transmission characteristics of the shaft wall-grouting body-surrounding rock tri-element heterogeneous water-resisting structure is extremely important for the safety and stability of deep water-rich shafts.First,the shaft wall-grouting body-surrounding rock tri-element heterogeneous water-resisting structure was proposed considering their combined effect,and the mechanical model of the seepage field was established in the light of the steady-state seepage theory.Based on the engineering background of Gaofeng Phosphate Mine in Yichang,Hubei Province,the influences of parameters such as wellbore design radius,water inflow per unit height,grouting body thickness,and shaft wall permeability coefficient on the water pressure transmission coefficient were discussed,which provided new theoretical insights for shaft design and construction.The main research results are as follows:Under the same formation water pressure conditions,the water pressure transmission coefficient grows with the increase of the wellbore design radius,but the water-resisting capacity of the water barrier weakens.The water pressure transmission coefficient λ decreases with the increase of the water inflow per unit height q.The smaller the ratio of the shaft wall permeability coefficient to the grouting body permeability coefficient k1/k2,the better the water-resisting effect.A decrease in the grouting body permeability coefficient k2,an increase in the grouting body thickness Δr2,and a decrease in the ratio of the shaft wall permeability coefficient to the surrounding rock permeability coefficient k1/k3 can all bring about a reduction in the water pressure transmission coefficient λ.The reduction in the grouting body permeability coefficient is conducive to improving the grouting effect.Engineering practices demonstrate that the shaft wall-grouting body-surrounding rock tri-element water-resisting structure effectively controls total shaft leakage,providing critical references for vertical shaft curtain grouting projects.关键词
立井井壁/注浆体/阻水结构/水压传递系数/渗流场理论Key words
shaft wall/grouting body/water-resisting structure/water pressure transmission coefficient/seepage field theory分类
矿业与冶金引用本文复制引用
赵延林,罗睿,廖健,谭哲,张敏真,刘钊..立井帷幕注浆后井壁-注浆体-围岩三元非均匀阻水结构水压传递特性及现场应用[J].采矿与安全工程学报,2026,43(3):653-662,10.基金项目
国家自然科学基金面上项目(52274118) （52274118）
2023年度芙蓉计划省企业科技创新创业团队 （）
湖南省教育厅优秀青年项目(24B0682) （24B0682）
