地下水作用下井筒冻结温度场数值分析  

Numerical Analysis of Groundwater Velocity on Temperature Field of Shaft Freezing

作　　者：丁航 李方政 崔灏 

机构地区：[1]煤炭科学研究总院,北京100013 [2]北京中煤矿山工程有限公司,北京100013

出　　处：《煤炭技术》2018年第3期195-197,共3页Coal Technology

基　　金：北京市科委重大科技成果转化落地培育项目(Z151100002815023);国家重点研发计划(2016YFC0600904)

摘　　要：以西部某矿井井筒冻结为背景,通过数值模拟,比较静水、动水条件下冻结壁发育差异,并提出相应手段降低地下水流速对冻结壁发育危害。研究表明,在地下水带走上游冻结壁大量冷量,使得上游冻结壁发育缓慢,形状不规则;而注浆能够有效降低地下水危害。Based on a mine shaft freezing in the west, the difference of frozen wall development under static and dynamic conditions is compared by numerical simulation, and the corresponding measures are put forward to reduce the harm of groundwater flow rate to the development of frozen wall. The research shows that a lot of cooling capacity of the upstream frozen wall is removed from the groundwater, which makes the upstream frozen wall develop slowly and the shape is irregular. Grouting can effectively reduce the harm of groundwater. The results can provide reference for similar project construction.

关 键 词：地下水 井筒冻结 温度场 数值分析 

分 类 号：TD265.3[矿业工程—矿井建设]