上海庙矿区石盒子组粗砂岩孔隙含水层探水注浆技术  

Water Detection and Grouting Technology of Porous Aquifer in Coarse Sandstone of Shihezi Formation in Shanghai Miao Mining Area

作　　者：张法才 白光超 ZHANG Facai;BAI Guangchao(Otokeqian Greatwall No.3 Mine Company Limited,Ordos 016215,China)

机构地区：[1]鄂托克前旗长城三号矿业有限公司,内蒙古鄂尔多斯016215

出　　处：《建井技术》2021年第2期12-14,21,共4页Mine Construction Technology

摘　　要：上海庙矿区石盒子组地层胶结成岩差,岩石硬度低;粗砂岩含水层孔隙发育,富水性强。含水层注浆时,透水不吃浆,注浆效果差。根据具体情况,采用小段高逐层加压注浆,并增加止水套管长度,改进止浆垫施工工艺,科学选用注浆材料,保证了粗砂岩孔隙含水层注浆效果。The stratum of Shihezi Formation in Shanghai Miao Mining Area was a poor cementation rock and the rock hardness was low.The porosity of the coarse sandstone aquifer was well developed and the water abundance was high.During the grouting of the aquifer,the water permeability of the aquifer would not take the grout and the grouting effect was poor.According to the certain condition,a layer by layer pressurized grouting in a low height section wad conducted.Also the length of the watertight casing was increased and the construction technology of the grouting pad was improved.The grouting material was scientifically selected to ensure the grouting effect of the porous aquifer in the coarse sandstone.

关 键 词：粗砂岩孔隙含水层 孔隙水 探水注浆 

分 类 号：TD265.48[矿业工程—矿井建设]