有无内支撑式型钢拱架在偏压隧道中的对比应用  

Steel Arch Truss Having Internal Bracings or Not is Applied with Comparison in Tunnel with Unsymmtrical Loadings

作　　者：朱先龙[1,2] 周建 经来旺[4] 叶金胜 ZHU Xian-long;ZHOU Jian;JING Lai-wang;YE Jin-sheng(Huainan Mining（Group）Co.,Ltd.,Huainan 232001,China;Huaikt~ang West Mine Investment Management Co.,Ltd.,Huainan 232001,China;School of Civil Engineering and Arehitecture,Anhui University of Science and Technology,Huainan 232001,China;School of Mechanical and Photoelectric Physics,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]淮南矿业(集团)有限责任公司,安徽淮南232001 [2]淮矿西部煤矿投资管理有限公司,安徽淮南232001 [3]安徽理工大学土木建筑学院,安徽淮南232001 [4]安徽理工大学力学与光电物理学院,安徽淮南232001

出　　处：《煤炭技术》2018年第9期47-49,共3页Coal Technology

基　　金：安徽理工大学研究生创新基金项目(2017CX2019)

摘　　要：针对浅埋偏压隧道初支围岩压力不均,型钢拱架作为常用的初支方式容易产生局部失稳破坏的现象,通过在某隧道FK45+500和FK45+600两断面分别安装无内支撑式型钢拱架和内支撑式型钢拱架,在各测点布置测试元件,对两断面的围岩压力、位移以及拱架的结构内力进行监测分析。According to the primary support surrounding rock pressure of shallow tunnel with unsymmtrical loadings is uniform,steel arch truss as a frequently-used primary support way generates local instability failure phenomenon easily. By installing steel arch truss individually which has or not has not internal bracings at FK45＋500 and FK45＋600 sections of some tunnel,fixing up test elements at measuring points,monitoring and analyzing surrounding rock pressure,displacement and steel arch truss′ s structural internal force of this two sections.

关 键 词：浅埋偏压隧道 型钢拱架 内支撑 监测分析 

分 类 号：U452[建筑科学—桥梁与隧道工程]