工作面超前巷道矿压分区演化规律与分段控制研究  

Zoning law and sectional control of mine pressure in advance roadway of working face

作　　者：张春雷 刘永红 杨亮 郭晓菲 钟金贵 张震 ZHANG Chunlei;LIU Yonghong;YANG Liang;GUO Xiaofei;ZHONG Jingui;ZHANG Zhen(CHN Energy Group Xinjiang Energy Co.,Ltd.,Urumqi 830027,China;School of Energy and Mining Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]国家能源集团新疆能源有限责任公司,新疆乌鲁木齐830027 [2]中国矿业大学(北京)能源与矿业学院,北京100083

出　　处：《煤炭工程》2025年第2期124-132,共9页Coal Engineering

基　　金：国家自然科学基金项目(52004289)。

摘　　要：为探究工作面超前巷道围岩破坏的演化规律,综合运用理论分析与数值模拟相结合的方法,研究了工作面超前区域采动应力场的分布特征。研究结果表明:①高偏应力是引发围岩破坏的关键诱因,基于双向应力非均匀程度的变化规律,提出基于围压比值的应力分区方法,将工作面超前采动应力场划分为四个区域:极限平衡区、高偏应力区(η≥η_(2))、偏应力回降区(η_(1)<η<η_(2))以及原岩应力区(η=η_(1));②基于超前巷道围岩的不同破坏形态及稳定状态的变化,进一步按照矿压显现现象将超前巷道划分成四个区域:破碎区、蝶形破坏区、椭圆形破坏区和圆形破坏区;③基于超前巷道的分区规律提出差异性分段支护控制方法,旨在确保支护结构与围岩相互协调,有助于优化超前巷道补强支护设计,为施工提供理论指导。In order to explore the evolution law of surrounding rock failure in advance roadway of working face,the distribution characteristics of mining stress field in advance area of working face were studied through theoretical analysis and numerical simulation.The key findings reveal that:①High deviatoric stress is the main cause of surrounding rock failure.Based on the variation law of non-uniformity of bidirectional stress,a stress zoning method based on confining pressure ratio is proposed.The advance mining stress field of the working face is divided into limit equilibrium zone,high deviatoric stress zone(η≥η_(2)),deviatoric stress drop zone(η_(2)>η>η_(1)),and original rock stress zone(η=η_(1)).②Corresponding to different failure modes and stable state changes of the surrounding rock,the advance roadway is further divided into broken zone,butterfly failure zone,elliptical failure zone,and circular failure zone,reflecting observed mine pressure behaviors.③Building on these zoning laws,a differential subsection support control method is proposed to ensure the coordination of the relationship between support and surrounding rock,which is helpful to optimize the reinforcement support design of advance roadway and provide theoretical guidance for construction.

关 键 词：采动应力场 超前巷道 蝶形破坏 塑性区形态 超前支护 

分 类 号：TD322[矿业工程—矿井建设]