设计与开采对软弱顶板冒裂带及出水的影响  

Influence of Design and Mining on Fractured Zone and Effluent of Soft Rock Roof

作　　者：张盼杰 Zhang Panjie(No.lColliery of Energy Development Co.,Ltd.,Xinwen Mining Industry Group(Yili),Yining,Xinjiang 835000)

机构地区：[1]新汶矿业集团(伊犁)能源开发有限责任公司一矿,新疆伊宁835000

出　　处：《江西煤炭科技》2022年第2期106-108,共3页Jiangxi Coal Science & Technology

摘　　要：本文以伊犁矿区伊犁四矿21103和21105工作面为背景,对其薄基软弱顶板冒裂带及出水的影响进行研究分析。在正常采动影响下顶板发生周期性整体冒落,能及时压实产生的裂隙,加之泥岩遇水膨胀,能够快速堵塞裂隙,从而减小水害威胁;结合工作面实际推采与出水情况,分析研究工作面设计与推采速度对裂隙发育高度的影响,得到不规则的工作面设计、超强支护以及无规律的采动都能增加裂隙发育高度,从而增加导通含水层的可能性,增大水害威胁。Taking 21103 and 21105 working face of No.4 coal mine in Yili area as the background,the paper studies and analyzes the influence of fractured zone and effluent of the thin foundation and weak roof,and draws conclusion that under the influence of normal mining,the roof periodically falls as a whole,which can compact the fissures in time,and the mudstone expands when it encounters water,which can quickly block the fissures,thereby reducing the threat of water damage.Combined with the actual mining and effluent conditions of the working face,the paper also analyzes and studies the influence of the working face design and the mining speed on the height of the fracture development,and draws the conclusion:irregular working face design,super support and irregular mining can increase the height of fracture development,thereby increasing the possibility of conducting aquifers and increasing the threat of water damage.

关 键 词：水害防治 裂隙发育高度 工作面设计 开采 软岩顶板 

分 类 号：TD742[矿业工程—矿井通风与安全]