探矿工程-岩土钻掘工程Issue(7)：27-29,33,4.
金华山煤矿大口径瓦斯抽排孔施工技术
Construction Technology of Large Diameter Gas Discharging Hole in Jinhuashan Coal Mine
熊杰 1来甲 1高卫乾1
作者信息
- 1. 陕西韩城天久注浆勘探有限责任公司，陕西韩城715400
- 折叠
摘要
Abstract
In order to reduce the harm of coal mine gas and realize comprehensive utilization, the large diameter gas hole project is encouraged and supported in China.This paper shows a large diameter gas hole with diameter of 850mm and ter-mination depth of 401.6m and in detail introduces the special construction technologies after small diameter hole drilling through the tunnel and related technical measures in drilling methods, drilling tool grading, drilling technical parameters, flushing fluid, borehole rolling and straightening, protection casing installation and consolidation at hole bottom, circulating mud filling, pipe lowering and fixing and hole construction for drainage.关键词
大口径瓦斯抽排孔/钻进/金华山煤矿Key words
large diameter gas discharging hole/drilling/Jinhuashan coal mine分类
天文与地球科学引用本文复制引用
熊杰,来甲,高卫乾..金华山煤矿大口径瓦斯抽排孔施工技术[J].探矿工程-岩土钻掘工程,2015,(7):27-29,33,4.
