基于实测数据的建庄煤矿地应力分布规律与影响因素研究  

Study on Distribution Law and Influencing Factors of In-situ Stress in Jianzhuang Coal Mine Based on Measured Data

作　　者：张军明 张文 马壮 阮杰 杨子凡 陈伟[2] ZHANG Junming;ZHANG Wen;MA Zhuang;RUAN Jie;YANG Zifan;CHEN Wei(SHCCIG Huangling Jianzhuang Mining Co.,Ltd.,Huangling 727300,China;Xi′an University of Science and Technology,Xi′an 710054,China)

机构地区：[1]陕西煤业集团黄陵建庄矿业有限公司,陕西黄陵727300 [2]西安科技大学,西安710054

出　　处：《煤炭技术》2025年第4期27-32,共6页Coal Technology

基　　金：国家自然科学基金项目(41807192)。

摘　　要：采用应力解除法完成了4个测点原岩地应力测量,对建庄煤矿地应力分布规律进行了系统研究,并对其影响因素进行了分析。主要研究结果表明:建庄煤矿属于以水平构造应力为主导的σ_(H)>σ_(v)>σ_(h)型地应力场,对巷道两帮的稳定性影响较大;最大水平应力方向基本呈南北走向,σ_(H)与σ_(v)比值为1.22~1.28,以水平构造应力为主,垂直应力同样作用明显,σ_(H)/σ_(h)较大,水平应力对巷道顶、底板的影响具有明显的方向性;地应力主要影响因素为埋深、岩性和断层,主应力值随埋深的增加而增大,侧压力系数随埋深的增加而减小,主应力值与弹性模量呈正相关性,在断层扰动下,地应力方向发生明显偏转。研究成果为建庄煤矿后续矿井布置及安全开采具有重要的参考价值。Using the hollow inclusion stress relief method,the in-situ stress measurements of four measuring points were completed,the distribution law of in-situ stress was systematically studied,and its influencing factors are analyzed in Jianzhuang coal mine.The main research results show that:the Jianzhuang coal mine belongs to the horizontal tectonic stress dominatedσ_(H)>σ_(v)>σ_(h) type of in-situ stress field,which has a greater impact on the stability of the two gangs of the roadway;the maximum horizontal stress is basically orientated in the north-south direction,the ratio ofσ_(H) toσ_(v) is 1.22-1.28,the horizontal tectonic stress is dominant,the vertical stress also plays an obvious role,the shear damage of the top plate is more serious compared with the two gangs,the ratio ofσ_(H) toσ_(h) is larger,and the influence of horizontal stress on the top and bottom plates of the roadway has obvious directionality;the main influences of in-situ stress are buried depth,lithology and faults,the principal stress value increases with the increase of buried depth,lateral pressure coefficient decreases with the increase of buried depth,the value of principal stress is positively correlated with the elasticity module,it has obvious in-situ stress direction apparent deflection and stress values stress concentration phenomenon caused by the fault disturbances.The research results have important reference value for the subsequent layout and safe mining of Jianzhuang coal mine.

关 键 词：建庄煤矿 综放工作面 地应力分布 应力解除法 影响因素 

分 类 号：TD311[矿业工程—矿井建设]