西部含水软岩冻结井筒马头门衬砌结构内力监测及补强加固技术  

Reinforcement Technology and Internal Force Monitoring for Horsehead Lining Structure of Freezing Shaft in West Soft Rock Containing Water

作　　者：张基伟 

机构地区：[1]北京中煤矿山工程有限公司,北京100013

出　　处：《煤矿安全》2017年第2期89-92,共4页Safety in Coal Mines

基　　金："十二五"国家科技支撑计划资助项目(2012BAB13B00)

摘　　要：通过对西部含水软岩地层冻结井筒马头门衬砌结构内力监测,掌握了衬砌结构钢筋应力、混凝土应变、孔隙水压力等变化规律。利用现场监测进行了支护效果评价。以"强化支护、适当让压、刚柔结合"为支护理念,提出了"锚-注-喷"补强加固方案。通过支护效果评价证明了补强加固方案合理性。Through the internal force monitoring for horsehead lining structure of freezing shaft in west soft rock containing water, the change laws of steel stress, concrete strain and pore water pressure of lining structure are grasped. The supporting effect is evaluated by field monitoring method. The anchoring ＋ grouting ＋ spraying reinforcement technology is proposed according to support concept of ＂strengthening supporting, appropriately yield, rigid-flexible combination＂. The support effect shows that the reinforcement technology is reasonable.

关 键 词：西部含水软岩地层 冻结井筒 马头门衬砌结构 补强加固技术 

分 类 号：TD353[矿业工程—矿井建设]