Surface grouting and water plugging technology for inclined shaft in water-rich sandy soil
LIU Kaixiang;DING Xiang;ZHOU Dangwen;HUANG Haiyu;HUANG Xiaojing;DUAN Dongwei;FENG Jie;PANG Long
为了有效降低富水砂-土地层结构对煤矿斜井井筒造成的不均匀沉降和破坏作用,以榆神矿区西部某矿副斜井井筒涌水治理为例,在充分分析井筒涌水特征和治理条件的基础上,利用井筒周圈砂土地层与裂隙间的可注浆差异性,通过现场注浆试验及施工验证,创新性地采用地面垂直钻孔,在钻孔点位距离单层结构井壁0.6~0.8 m的平面位置和进入井筒底板片石碎石垫层0.2~0.5 m的注浆层位上,利用
In order to effectively reduce the uneven settlement and destructive effect of water-rich sand-soil stratum structure on coal mine inclined shaft, taking the water gushing treatment of an auxiliary inclined shaft in the west of Yushen Mining Area as an example, on the basis of full analysis of wellbore water gushing characteristics and treatment conditions, making use of the grouting difference between sand stratum and cracks in the periphery of wellbore, through on-site grouting test and construction verification, ground vertical drilling is creatively adopted; at the plane position of the drilling point 0.6-0.8 m away from the single-layer structure wall and the grouting level 0.2-0.5 m into the schist and gravel cushion of the wellbore floor, the grouting diameter of
Yushen Mining Area;uneven subsidence;inclined shaft cracking;ground grouting;wellbore water gushing control
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会