巷道掘进揭煤诱导煤与瓦斯突出模拟试验系统  

A simulation system for coal and gas outburst induced by coal uncovering in roadway excavation

作　　者：袁亮[1,2] 王伟 王汉鹏[1,3] 张冰 刘众众[1,3] 余国锋 左宇军[5] YUAN Liang;WANG Wei;WANG Hanpeng;ZHANG Bing;LIU Zhongzhong;YU Guofeng;ZUO Yujun(Research Center of Geotechnical and Structural Engineering.Shandong University,Jinan,Shandong 250061,China;Key SKL of Deep Coal Mine Excavation Response&Disaster Prevention and Control,Anhui University of Science and Technology,Huainan,Anhui 232001,China;School of Qilu Transportation,Shandong University,Jinan,Shandong 250061,China;Coal Mining National Engineering Technology Research Institute,Huainan Mining Group Corporation,Huainan,Anhui 232001,China;Mining College,Guizhou University,Guiyang,Guizhou 550025,China)

机构地区：[1]山东大学岩土与结构工程研究中心,山东济南250061 [2]安徽理工大学省部共建深部煤矿采动响应与灾害防控国家重点实验室,安徽淮南232001 [3]山东大学齐鲁交通学院,山东济南250061 [4]淮南矿业(集团)有限责任公司煤炭开采国家工程研究院,安徽淮南232001 [5]贵州大学矿业学院,贵州贵阳550025

出　　处：《中国矿业大学学报》2020年第2期205-214,共10页Journal of China University of Mining & Technology

基　　金：国家重大科研仪器研制项目(51427804);国家自然科学基金项目(51574093);山东自然科学基金项目(ZR2017MEE023);山东省重点研发计划项目(2019GSF111036)。

摘　　要：为深入研究巷道掘进揭煤诱导煤与瓦斯突出机理及其全过程多物理量信息规律,基于综合假说及CSIRO突出模型,研发了巷道掘进揭煤诱导煤与瓦斯突出模拟试验系统.试验系统的反力密封单元具备旋转功能,且实现了模型边界气密性;应力加载单元实现了对模型5 MPa真三轴地应力加载;气体充填单元实现了3 MPa气体自动稳压充填和快速补压;巷道掘进单元实现了巷道可视化伺服掘进和自动排渣;信息获取单元实现了突出全过程多物理量信息快速获取融合.并利用试验系统成功开展了真三轴地应力加载和1.1 MPa充气保压条件下巷道掘进揭煤诱导煤与瓦斯突出全过程相似模拟试验,得到与现场相似的突出孔洞位置及形状、突出粉煤质量与距离等现象及气压、温度、应力等多物理量信息.In order to deeply study the mechanism of coal and gas outburst induced by coal uncovering in roadway excavation and the law of multi-physical information in the whole processes,a simulation system of coal and gas outburst induced by coal uncovering in roadway excavation was developed.The sealed counter-force unit has the rotating function and achieves the boundary gas tightness of the model.The stress loading unit realized the true triaxial geo-stress of 5 MPa loading to the model;Gas filling unit can automatically and stably fill 3 MPa gas,and quickly compensate the gas pressure.The roadway excavating unit realized visual servo tunneling and automatic slag removal.The information collecting unit achieves the fast fusion acquisition of multi-physical information in the whole process of outburst.Similar simulation experiment of the whole process of coal and gas outburst induced by coal uncovering in roadway excavation under true triaxial geo-stress loading and 1.1 MPa gas-filled pressure-retaining conditions were successfully carried out using the system.The location and shape of the outburst hole and the quality and distance of the outburst pulverized coal were similar to the accident scene,and multi-physical information were obtained.The development of the system provides a scientific means for deeply study of coal and gas outburst mechanism and acquisition of outburst precursor information.

关 键 词：煤与瓦斯突出 巷道掘进揭煤 诱导致突 模拟试验 系统研发 

分 类 号：TD712[矿业工程—矿井通风与安全]