燃气管道水平定向钻穿越富水山体注浆止水技术  

Grouting Leak-stoppage Technology for Gas Pipeline Horizontal Directional Drilling Crossing Water-rich Mountain

作　　者：刘兵 田建禹 李浩然 LIU Bing;TIAN Jianyu;LI Haoran

机构地区：[1]北京城建亚泰建设集团有限公司,北京100013

出　　处：《煤气与热力》2025年第2期I0023-I0025,共3页Gas & Heat

摘　　要：针对北京某燃气管道水平定向钻穿越富水山体时遇到的涌水现象,研发了水平定向钻穿越富水山体注浆止水技术,得到了良好的止水效果。富水山体地下水主要为基岩裂隙水。根据勘探孔的情况判断出水点的位置,将注浆封隔器送入导向孔内预定位置进行座封,以高于岩基裂隙水的压力,向被封堵的导向孔内注入注浆材料,使注浆材料填充富水山体的岩层裂隙。注浆材料终凝后,实现封堵岩层裂隙、止水堵漏。In view of the water gushing phenomenon en-countered during a gas pipeline horizontal directional drilling crossing water-rich mountain in Beijing,the grouting leak-stoppage technology for horizontal direc-tional drilling crossing water-rich mountain was devel-oped,which achieved good leak-stoppage effect.The groundwater of water-rich mountain is mainly the bed-rock fissure water.According to the situation of the ex-ploration hole,the position of the water outlet point is determined,and the grouting packer is sent to the pre-determined position in the guide hole for seat sealing.The grouting material is injected into the blocked guide hole with the pressure higher than the bedrock fissure water,so that the grouting material fills the bed-rock fissure of the water-rich mountain.After the final solidification of the grouting material,the bedrock fis-sure can be sealed and the leak can be stopped.

关 键 词：水平定向钻 富水山体 注浆止水 注浆材料 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程]