大流速渗透地层立井冻结方案优化及影响因素分析  

Optimization of Shaft Freezing Scheme and Analysis of Influencing Factors in High Velocity Permeable Strata

作　　者：姜晓刚 荣传新[1] 王彬[1] 孙世成 施鑫 张世琪 张伟[1] JIANG Xiaogang;RONG Chuanxin;WANG Bin;SUN Shicheng;SHI Xin;ZHANG Shiqi;ZHANG Wei(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001

出　　处：《煤炭技术》2022年第2期35-38,共4页Coal Technology

基　　金：国家自然科学基金资助项目(51878005,51374010)。

摘　　要：为了解决冻结壁在大流速地下水作用下交圈时间增加甚至无法交圈的工程问题,提出"注浆+加强冻结"的优化方案。基于自主构建的水热耦合数学模型,运用COMSOL数值计算软件对不同注浆区域布置角度(20°、30°、40°、50°、60°)、不同加强冻结管布置角度(5°、10°、15°、20°)的优化效果进行预测分析。研究成果可以指导大流速渗透地层富水矿井施工。In order to solve the engineering problem that the closure time of the frozen wall increases or even cannot be closed under the action of high velocity groundwater,the optimization plan of"grouting+enhanced freezing"is proposed.Based on the self-constructed mathematical model of water and heat coupling,the COMSOL numerical calculation software is used to arrange the angles of different grouting areas(20°,30°,40°,50°,60°),and the arrangement angles of different reinforced freezing pipes(5°,10°,15°,20°)optimization effect for predictive analysis.The research results can guide the construction of water-rich mine with high velocity seepage.

关 键 词：冻结壁 地下水 优化方案 加强冻结 地层注浆 

分 类 号：TD265.3[矿业工程—矿井建设]