基于能量校核的强矿压全煤巷道强力锚索顶板支护系统的设计应用  

Design and Application of Strong Anchored Cable Supporting System for Coal Roadway with Strong Pressure Based on Energy Check

作　　者：丁小敏 安建岗 武彦平 石蒙[2] 

机构地区：[1]华亭煤业集团有限责任公司砚北煤矿,甘肃华亭123000 [2]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《煤矿开采》2014年第6期47-49,73,共4页Coal Mining Technology

基　　金：国家科技支撑计划课题(2012BAK04B06);中国煤炭科工集团科技创新基金项目:动压巷道水力压裂卸压机理研究(2013QN011);天地科技开采设计事业部青年创新基金项目:高效多功能可移动钻机平台设计与开发(KJ-2013-TDKC-18)

摘　　要：强矿压显现情况下特厚大断面全煤巷道围岩离层和结构变形严重,普通低强度支护方式不能对巷道破坏进行有效控制。为提高支护效果,保持围岩的完整性与稳定性,采用基于能量校核的不等长完全强力锚索顶板支护系统进行支护。通过理论计算和现场实践表明,这种新型支护设计方法的支护承载力超过矿压显现的能量释放,长短结合的锚索支护显著提高了支护的可靠性和安全程度,降低巷道维修成本,应用效果显著。Surrounding rock separation and supporting structure deformation was very serious in large-section coal roadway in extremely-thick coalseam under strong underground pressure, and common low-strength supporting manner could not control effectively roadway deformation. In order to improve supporting effect and keep surrounding rock integrity and stability, applying unequal-length strong an-chored cable to supporting roof based on energy check. Theoretical calculation and on-the-spot practice showed that supporting capacity of this system exceeded energy released from underground pressure behavior. Long-and-short anchored cable obviously improved sup-porting reliability and safety degree, and reduced roadway maintenance cost. Application effect was significant.

关 键 词：能量校核 强矿压 不等长 强力锚索 设计应用 

分 类 号：TD353[矿业工程—矿井建设]