文献类型：期刊文献

英文题名：Analysis on the Influence Degree of Deformation Control Factors of Deep-Buried Roadway's Fractured Surrounding Rock Using Orthogonal Design

作者：Li, Ke Yu, Weijian Xu, Youlin Zhou, Ze Xu, Mengtang Liang, Wei

第一作者：李可;Li, Ke

通信作者：Yu, WJ[1];Yu, WJ[2]

机构：[1]Hunan Univ Sci & Technol, Sch Resource & Environm & Safety Engn, Xiangtan 411201, Hunan, Peoples R China;[2]Guizhou Inst Technol, Coll Min, Guiyang 550003, Guizhou, Peoples R China;[3]Hunan Univ Sci & Technol, Hunan Prov Key Lab Safe Min Tech Coal Mines, Xiangtan 411201, Hunan, Peoples R China

第一机构：Hunan Univ Sci & Technol, Sch Resource & Environm & Safety Engn, Xiangtan 411201, Hunan, Peoples R China

通信机构：corresponding author), Hunan Univ Sci & Technol, Sch Resource & Environm & Safety Engn, Xiangtan 411201, Hunan, Peoples R China;corresponding author), Hunan Univ Sci & Technol, Hunan Prov Key Lab Safe Min Tech Coal Mines, Xiangtan 411201, Hunan, Peoples R China.

年份：2021

卷号：2021

外文期刊名：ADVANCES IN CIVIL ENGINEERING

收录：;Scopus(收录号：2-s2.0-85108508440);WOS:【SCI-EXPANDED(收录号:WOS:000664873500005)】；

基金：This research was supported by the National Natural Science Foundation of China (nos. 51974117, 51764010, and 51874109), Science and Technology Project for Outing and Young Talents of Guizhou (Talents of Science Platform in Guizhou; no. [2019] 5674), New Talent Training Project of Guizhou Institute of Technology (no. GZLGXM-02), Hunan Provincial Natural Science Foundation of China (no. 2020JJ4027), Guizhou Provincial Science and Technology Support Program (no. QKHZC[2021]General 347), and Scientific Research Foundation for High-Level Talents in Guizhou Institute of Technology (no. XJGC20190633). Professor Xueling Du from Guizhou Institute of Technology had provided a lot of valuable opinions on this article. The authors would like to express their sincere thanks to Professor Du.

语种：英文

摘要：It is a complex issue to select the support structure parameters for a deep-buried roadway with fractured surrounding rock; especially when the support structure parameters need to be adjusted, the influence degree of support structure parameters on roadway deformation needs to be determined. The deformation of deep-buried roadway's fractured surrounding rock development was investigated using multi-index orthoplan in this paper. According to the coal mine field investigation, support structure's failure often occurs, and some need to be repaired many times. Through the roadway surrounding rock drilling, it was found that the stress of the surrounding rock was relieved, resulting in the cavity and separation of the stratum layer. The two sidewalls' development and roof fractures are mainly tangential, and the original rock state appears only beyond 6.3 similar to 8.2 m. The length of bolts, the row distance between bolts, the length of cables, and the row distance of U-shaped steel were selected as control factors in the multi-index orthogonal design, and roadway's deformation values were taken as the test indexes. According to the orthoplan, nine numerical simulation schemes were designed, and FLAC(3D) was used for establishment. The range analysis method was used to analyze the test results. The results show that the control factors' influence order on the total deformation of the roadway is as follows: row spacing between U-shaped steel > bolt length > cable length > row spacing between bolts, the influence order on the deformation of the roadway floor is as follows: row spacing between U-shaped steel > row spacing between bolts > bolt length > cable length, same as the left sidewall and right sidewall, and the influence order on the roadway roof's deformation is as follows: row spacing between U-shaped steel > bolt length = cable length > row spacing between bolts, which provide a reference for the support design of deep-buried roadways with fractured surrounding rock, especially the adjustment of the supporting structure.