摘要
为了提高煤矿地质探水钻孔封孔效果,避免因封孔不牢固,造成放水期间煤壁出现渗水、孔口管出现窜动现象,导致重大煤矿突水事故发生,本人提出了探水钻孔囊袋式“两堵一注”封孔工艺,采用钻孔煤屑量法合理确定钻孔封孔长度,对钻场煤壁采取架设“L”型钢棚进行维护,并在小峪煤矿探放水施工中进行应用,实际应用效果表明,取得了显著成效。
In order to improve the sealing effect of boreholes for geological water exploration in coal mines and avoid the seepage of coal wall and the channeling of orifice pipes due to the unstable sealing,leading to the occurrence of serious water inrush accidents in coal mines,the author puts forward the bag-type sealing technology of "two stops and one injection" for water exploration boreholes,and reasonably determines the boreholes by using the method of borehole cuttings.The length of sealing hole is adopted to maintain the coal wall of drilling ground by erecting "L" shaped steel shed,and is applied in the construction of water exploration and drainage in Xiaoyu Coal Mine.The practical application results show that remarkable results have been achieved.
作者
王鹏江
WANG Pengjiang(With the coal group Shuozhou coal company,Shanxi Shuozhou 038300)
出处
《煤矿现代化》
2019年第5期7-9,共3页
Coal Mine Modernization
关键词
探水钻孔
囊袋式
封孔工艺
封孔长度
安全措施
Drilling hole drilling
Bag type
Sealing process
Sealing length
Safety measures
