煤矿安全2017，Vol.48Issue(z1)：43-47,5.DOI:10.13347/j.cnki.mkaq.2017.S1.010
布尔台矿42201工作面底板砂岩承压水防治技术
Prevention and Control Technique for Confined Water of Floor Sandstone at 42201 Working Face of Buertai Coal Mine
高振宇 1何渊 2任建刚 1刘小雄1
作者信息
- 1. 神华神东煤炭集团有限责任公司,陕西神木719315
- 2. 中煤科工集团西安研究院有限公司,陕西西安710054
- 折叠
摘要
Abstract
In order to solve the problems of mining under pressure of floor sandstone confined water existing at 42201 working face of Buertai Coal Mine,this paper analyzes the hydrogeology condition of 42201 working face based on the data of exploration drilling and effluent of poor sealing holes at upper 22201 working face in the process of mining.And the threatening degree of mining under pressure is evaluated through the calculation data including damage depth of destroyed floor,thickness of effective protection layer,water-resisting ability and water burst coefficient.The direct current prospecting technique is used to detect abnormal vertical and plane distribution scope,characteristics of the watery of floor sandstone aquifer,and drilling verification and draining depressurization are carried out in key water enrichment anomaly area.We also evaluated the sealing quality and predicted the permeable capacity of poor sealing holes of working face,and carried out draining depressurization and grouting measures to seal the area of poor sealing holes for floor sandstone confined water.Finally,the measures of grouting and draining depressurization have good effect though the inspection holes,and safety mining of 42201 coal face can be realized.关键词
底板砂岩含水层/承压水/带压开采/水文地质/突水Key words
sandstone aquifer at the floor/confined water/mining under pressure/hydrogeology condition/water burst分类
矿业与冶金引用本文复制引用
高振宇,何渊,任建刚,刘小雄..布尔台矿42201工作面底板砂岩承压水防治技术[J].煤矿安全,2017,48(z1):43-47,5.
