防冲吸能构件应变特性及巷道支架应用研究  

Study on strain properties of energy-absorption burst-prevention component and its application in roadway support

作　　者：安栋 陈征 宋嘉祺 刘天旺 许海亮 宋义敏 AN Dong;CHEN Zheng;SONG Jiaqi;LIU Tianwang;XU Hailiang;SONG Yimin(School of Civil Engineering,North China University of Technology,Beijing 100144,China;School of Mechanics and Civil Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]北方工业大学土木工程学院,北京100144 [2]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《中国安全生产科学技术》2022年第12期73-79,共7页Journal of Safety Science and Technology

基　　金：国家自然科学基金项目(51474013,51774015);北方工业大学毓优人才项目(20XN199/001)。

摘　　要：为明确防冲吸能支护的力学特性及其应用效果,基于竖向准静态压缩试验研究防冲吸能构件的荷载位移曲线,采用ABAQUS模拟防冲吸能构件的变形压溃过程,并与试验结果进行对比,对变形过程中构件管壁的应变演化进行分析,进而研究吸能支架在冲击作用下的应变特性。研究结果表明:数值计算可以较好地对防冲吸能构件的变形吸能过程和荷载位移曲线进行模拟;采用该构件的液压支架能够满足防冲吸能支护的设计理念和原则;对吸能支架吸能特性研究,防冲吸能构件能够在冲击来临时更好地保护支架,研究成果可为冲击地压巷道支护体系提供设计参考。To clarify the mechanical characteristics of the energy-absorption support and its application effect,the load-displacement curve of energy-absorption burst-prevention component is studied through vertical quasi-static compression experimental,and the deformation and crush process are simulated by ABAQUS.The results show that the numerical calculation can simulate the deformation process and load displacement curve of the component;the hydraulic support which can absorb energy can meet the concept and principle of the energy-absorption support;Research on energy absorption characteristics of the support shows that energy-absorption burst-prevention component can protect the support not to failure when the rock burst comes,thus providing an application way for the safety of roadway support under the rock burst.

关 键 词：冲击地压 防冲吸能 应变演化 变形特性 

分 类 号：X936[环境科学与工程—安全科学]