冻结井筒双层井壁受力实测研究  

Research on Stress Measurement of Double Liners in Mine Freezing Shaft

作　　者：钟占良 王建平 管增伦 刘晓敏 杨伟光 王楷 ZHONG Zhan-liang WANG Jian-ping GUAN Zeng-lun LIU Xiao-min YANG Wei-guang WANG Kai(China Coal Shanxi Yulin Energy and Chemical Company Limited,Yulin 719000,China Research Institute of Mine Construction, Tiandi Science and Technology Company Limited,Beijing 100013,China National Engineering Laboratory for Deep Shaft Construction Technology in Coal Mine ,Beijing 100013,China China Coal Energy Company Limited ,Beijing 100120,China)

机构地区：[1]中煤陕西榆林能源化工有限公司,陕西榆林719000 [2]天地科技建井研究院,北京100013 [3]煤矿深井建设技术国家工程实验室,北京100013 [4]中煤能源有限责任公司,北京100120

出　　处：《建井技术》2016年第6期22-25,共4页Mine Construction Technology

基　　金："十二五"国家科技支撑计划资助项目(2012BAB13B00);中国煤炭科工集团有限公司技术开发资助项目(2013MS001)

摘　　要：大海则煤矿主井、1号副井、2号副井和回风井4个井筒主要穿过白垩系和侏罗系含水软岩地层,均采用冻结法施工,井壁结构均为双层钢筋混凝土。井筒施工中,选择4种典型地层,埋设传感器,对井壁受力进行实测研究。结果表明:该矿冻结井筒外层井壁受力状态是随施工的进行而不断变化的,与一般冻结井筒类似;双层井壁间注浆会对2层井壁应力分布产生巨大影响;通过壁间注浆,可以改善外层井壁受力状态,提高井壁整体承载能力。Dahaize Mine main shaft,No. 1 mine auxiliary shaft, No. 2 mine auxiliary shaft and mine air returning shaft were passed through the Cretaceous and Jurassic water bearing soft rock strata mainly and were all constructed with the ground freezing method. The structures of the mine shaft liners were the double reinforced concretes. In the construction of the mine shafts, the measurement research was conducted on the mine stressed shaft liners with the selections of four typical strata and the sensors buried. The research results showed that the stressed status of the outer shaft liner in the mine freezing shaft was continuously varied with the mine shaft construction and was similar to the normal mine freezing shaft. The grouting between the double liners would have great influences to the stress distribution of the double liners. The grouting between the double liners could improve the stressed status of the outer liner and could improve the completed loading capacity of the mine shaft liners.

关 键 词：冻结井筒 双层井壁 井壁受力 实测研究 壁间注浆 

分 类 号：TD265.32[矿业工程—矿井建设]