摘要
针对王坡煤矿汛期降水量大、持续时间长,大量地表水向井筒内渗透,井筒被破坏,造成井筒涌水量异常增大,进而导致矿井通风压力大、生产成本高、存在安全隐患等问题,提出了施工水文地质探查孔,配套水文测井和常规测井,对涌水进行水化学分析的探查方法,根据地表水渗透层段分析,确定地表水渗透层位及主要涌水层,最后采用注浆封堵方案实现井筒涌水治理。涌水探查与治理实践结果表明,回风立井涌水层位探查准确,采取3圈钻孔注浆止水治理后,井筒涌水量由80 m^(3)/min降至25 m^(3)/min,封堵效果良好。
Wangpo Mine had a large amount of precipitation and a long duration in the flood season.A large amount of surface water penetrated into the wellbore,and the wellbore was destroyed,resulting in an abnormal increase in wellbore gushing water,which in turn led to high mine ventilation pressure,high production costs,and potential safety hazards.In view of these problems,this paper put forward the exploration method of constructing hydrogeological exploration hole,matching hydrological logging and conventional logging,and hydrochemical analysis of gushing water.According to the analysis of the surface water penetrating layer,the surface water penetrating layer and the main water gushing layer were determined.Finally,the grouting plugging scheme was used to realize the control of wellbore water gushing.The results showed that the exploration of the water gushing layer of the return air shaft was accurate,and the gushing water of the wellbore was reduced from 80 m^(3)/min to 25 m^(3)/min after three rounds of drilling hole grouting.The plugging effect was good.
作者
王展
Wang Zhan(Shanxi Tiandi Wangpo Coal Industry Co.,Ltd.,Jincheng 048021,China)
出处
《煤炭与化工》
CAS
2023年第10期81-85,共5页
Coal and Chemical Industry
关键词
涌水探查
渗透层
涌水层
注浆封堵
water gushing exploration
penetrating layer
water gushing layer
grouting plugging