保留巷道强矿压显现机理及其防治技术研究
投稿时间:2020-03-12  修订日期:2020-05-09  点此下载全文
引用本文:
摘要点击次数: 31
全文下载次数: 0
作者单位E-mail
高亮 神东煤炭集团公司布尔台煤矿
 
1627365221@qq.com 
訾杨 中国矿业大学(北京) 1627365221@qq.com 
中文摘要:针对布尔台煤矿42106工作面回采期间其辅运巷道(42105工作面保留巷道)超前段出现的强矿压显现,通过理论分析确定其发生机理,即受地质条件、采动影响以及巷道布置等多因素影响。在此基础上,为保证同等生产条件的42107工作面回采期间巷道正常使用,提出并实施顶板水压致裂技术,同时在42108辅运、42107辅运及42107主运对42107工作面实施定向水压致裂,实现围岩高应力的转移。实践证明,通过定向水压致裂技术大大降低了巷道超前支护段的矿压显现强度,保证了工作面的正常生产。
中文关键词:巷道强矿压  应力转移  水压致裂
 
Study of strong rock pressure appearance mechanism and control technique in retain Roadway
Abstract:Aiming at the strong ore pressure in the advanced section of auxiliary transport roadway during mining of the working face 42206 in buertai coalmine. The mechanism is determined by theoretical analysis, which strong ore pressure is affected by geological conditions ,mining and roadway layout. On this basis, in order to ensure the normal use of roadway during mining of the working face 42107 that have the same production conditions with 42106, the roof hydraulic fracturing technology is put forward and implemented. Directional hydraulic fracturing is carried out on 42107 working face in 42108 auxiliary roadway and 42107 auxiliary roadway lead to the high stress transfer of surrounding rock realized. Practice has proved that the directional hydraulic fracturing technology can greatly reduce the apparent strength of strong mine pressure in the advanced supporting section of roadway.
keywords:roadway strong pressure  stress transfer  hydraulic fracturing
  查看/发表评论  下载PDF阅读器
设备展厅
您是第7232443位访问者  备案许可证编号:京ICP备13036454号
版权所有:《中国矿业》杂志社有限公司
地  址: 北京市朝阳区安定门外小关东里10号院东小楼 邮编:100029 电话:010-68332570 88374940 E-mail: zgkyzzs@163.com