钢管混凝土支架在千米深井中央泵房中的应用  

Application of Concrete-filled Steel Tube Support in Kilometer Deep Central Pump Room

作　　者：高延法[1] 刘珂铭[1] 何晓升[1] 王军[1] 冯绍伟[1] 赵伟[1] 孙德科[1] 

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤矿安全》2015年第5期164-166,171,共4页Safety in Coal Mines

基　　金：国家自然科学基金重点资助项目(51134025);高等学校博士学科点专项科研基金资助项目(20100023110009);中央高校基本科研业务费专项资金资助项目(2010YL03)

摘　　要：为解决华丰矿-1 100 m水平中央泵房巷道变形量大、变形持续时间长的支护难题,通过现场考察对巷道变形破坏原因进行深入分析,设计了高强度钢管混凝土支架复合支护方案:支架断面采用斜墙半圆拱形,支架主体钢管选用219 mm×8 mm无缝钢管,充填C40钢纤维混凝土,辅助锚网喷支护和围岩加固注浆。现场应用表明:基于钢管混凝土支架的复合支护技术,能够有效抑制围岩向巷道空间内移动,维护巷道的长期稳定和支护结构的安全可靠。To solve the large and continuous deformation of Huafeng Mineg central pump room at - 1 100 m level, the main reasons for the deformation destroying were analyzed and then composite supporting program based on high strength concrete - filled steel tube support（CFSTS） was designed. Cross -section shape uses inclined wall semicircle arch and the selected main steel tube is 0219 mm × 8 mm seamless steel tube, filled with CAO steel fibre reinforced concrete, assisted bolting and shotcrete support and surrounding rock grouting. The engineering application shows that the composite supporting technology based on CFSTS can effectively prevent the surrounding rock from moving to the roadway space, ensured the long - term stability of the surrounding rock and the reliability of supporting structure.

关 键 词：钢管混凝土支架 深井巷道 中央泵房 围岩注浆 

分 类 号：TD353.3[矿业工程—矿井建设]