安徽地质2025，Vol.35Issue(3)：218-223,6.
极薄隔水层工作面底板奥灰水害地面区域治理技术研究
A study on ground treatment of Ordovician limestone water gushing in ultra-thin aquifuge floor working face by areas
胥翔1
作者信息
- 1. 安徽省煤田地质局,安徽 合肥 230088
- 折叠
摘要
Abstract
To enhance the reliability of ground horizontal drilling grouting for preventing Ordovician limestone water gushing in ultra-thin aquifuge floor working face,this study investigated a ground treatment technology applicable to existing roadways based on the engineering practice at the 31501 working face in Chenghe No.2 Mine.The results showed that the Ordovician limestone aquifer exhibited strong water abundance and heterogeneity,requiring substantial grout consumption.The poor stability of the roadway floor led to floor heave and grout leakage,failing to meet design requirements.To address these issues,a dual-layer grouting method was proposed to ensure treatment coverage.Additionally,applying cement-fly ash grout or aggregate-enhanced grout during initial grouting stages was suggested to establish a foundation layer and reduce economic costs.关键词
极薄隔水层/奥灰岩溶水害/超前区域治理/注浆改造/钻孔设计Key words
ultra-thin aquifuge/Ordovician limestone karstwater gushing/advanced ground control/grouting reinforcement/borehole design分类
天文与地球科学引用本文复制引用
胥翔..极薄隔水层工作面底板奥灰水害地面区域治理技术研究[J].安徽地质,2025,35(3):218-223,6.
