千米深井巨厚表土层井筒的注浆治理

Grouting Treatment for Kilometer Deep Shaft with Thick Topsoil

结合口孜东矿三井筒围岩地质条件和井壁冻结情况,科学分析井壁解冻期间的出水原因,合理确定采取上行式和下行式结合、分阶段进行水泥+水玻璃浆液的注浆方案,并充分利用井筒临时改绞和永久装备时进行注浆,避免了井筒注浆与矿井正常生产的相互影响,取得了良好的效果。

Combined with the geological conditions of surrounding rock and shaft freezing of Kouzidong Coal Mine, scientifically analyzes the pouring water cause when shaft wall thawing and rationally confirms the grouting plan including combining upward and downward type, as well as grouting of cement and water glass mixture in a phased manner and grouting while shaft temporary changing and permanent equipment installation, so as to avoid mutual effect of shaft grouting and mine working.