煤矿安全2018，Vol.49Issue(2)：63-66,4.DOI:10.13347/j.cnki.mkaq.2018.02.017
斜井流砂层段壁后空洞探测及注浆处理技术
Hollow Exploration and Backfill Grouting for Inclined Shaft Liner in Quicksand Layer
摘要
Abstract
Water leakage with sand of inclined shaft wall in quicksand layer can lead to hollow development behind lining.The distribution of hollows and water-enriched regions behind the inclined shaft lining in quicksand layer was gained by the ground penetrating radar (GPR) and drilling.In order to ensure the stability of the wellbore,the backfill grouting technique is used to deal with the hollows and water-enriched area.The backfill grouting uses double pipe grouting technique,and the grouting materials include single liquid cement slurry and C-S slurry.The phenomenon of water inflow with sand was eliminated dramatically after the backfill grouting,and the results of grout pressure test indicate a good result for backfill grouting.关键词
流砂层/斜井井筒/地质雷达/空洞探测/壁后注浆Key words
quicksand layer/inclined shaft liner/ground penetrating radar/hollow exploration/backfill grouting分类
矿业与冶金引用本文复制引用
袁东锋,宋荣普,周禹良,高晓耕,陈振国..斜井流砂层段壁后空洞探测及注浆处理技术[J].煤矿安全,2018,49(2):63-66,4.基金项目
煤炭科学研究总院科技创新基金资助项目(2016ZYZD002) （2016ZYZD002）
天地科技股份有限公司技术创新基金资助项目(KJ-2014-BJZM-03) （KJ-2014-BJZM-03）
