空心包体地应力测量技术研究与应用  

Study and Application of Hollow Inclusion Stress Measuring Technique

作　　者：祁和刚[1] 周钢[2] 

机构地区：[1]中国中煤能源集团有限公司,北京100000 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221116

出　　处：《煤矿安全》2016年第12期141-144,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51174196);"十二五"国家科技支撑计划资助项目(2012BAB13B02)

摘　　要：为改善煤矿井下空心包体地应力测量,基于测量系统的研究改进了三轴应变计、安装杆及钻头在井下测量的适用性,提高了测量的准确性和稳定性。在徐庄煤矿-750水平东翼轨道大巷与Ⅱ-Ⅰ采区通风下口进行了地应力现场实测,并获得成功。测量结果表明:徐庄煤矿二水平东翼区域以水平构造应力为主,东西布置的轨道大巷承受近垂直的剪应力作用。In order to improve measuring technique of hollow inclusion cell in mining,based on measuring system research,we improve the applicability of triaxial strain gauge,installing rod and drill bit in mining,and enhance the accuracy and stability of measurement. According to research results of in- situ geostress measurement system,we measure the in- situ stress in eastern main rail-tunnel and lower opening of ventilation in mining area Ⅱ- Ⅰin- 750 level of Xuzhuang Coal Mine. It shows that the stress field of eastern mine is mainly horizontal tectonic stress field,and the roadway arranged along the east- west direction is under nearly vertical shear stress.

关 键 词：地应力测量 空心包体应变计 测量系统 三轴应变计 

分 类 号：TD311[矿业工程—矿井建设]