摘要
针对西部含水软岩冻结井筒马头门维护困难的问题,利用数值模拟、现场监测等手段进行马头门破坏机理分析,并提出修复加固设计。现场应用结果表明,利用锚-注-喷等多种方式进行修复加固,可提高马头门、井筒及巷道相接处的围岩强度,能够有效地降低马头门变形破坏程度。
Aiming at maintenance difficulties of freezing horsehead in west water content soft rock, the failure mechanism of horsehead lining structure is analyzed by numerical simulation and field monitoring, and the repair reinforcement design is put forward. The local application results show that the anchors-grouting-spray repair technology can strenbqhen strength of the surrounding rock which combined the ingate, shaft and tunnel, and can effectively reduce the ingate deformation damage.
出处
《煤炭技术》
CAS
北大核心
2017年第1期86-88,共3页
Coal Technology
基金
国家十二五科技支撑计划资助项目(2012BAB13B00)
关键词
西部含水软岩
冻结井筒马头门
修复加固设计
west water content soft rock： freezing horsehead
repair reinforcement design
