Application of a combined supporting technology with U-shaped steel support and anchor-grouting to surrounding soft rock reinforcement in roadway

作     者：王辉 郑朋强 赵文娟 田洪铭 WANG Hui;ZHENG Peng-qiang;ZHAO Wen-juan;TIAN Hong-ming

作者机构：Department of Resource and Civil Engineering Shandong University of Science and Technology Key Laboratory of Safety and High-efficiency Coal Mining Ministry of EducationAnhui University of Science and Technology Department of Building EngineeringTaishan Polytecnnic State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil Mechanics Chinese Academy of Science 

基　　金：Projects(51409154,41772299)supported by the National Natural Science Foundation of China Project(J16LG03)supported by the Shandong Province Higher Educational Science and Technology Program,China Projects(2015JQJH106,2014TDJH103)supported by the SDUST Research Fund,China Project(201630576)supported by the Tai’an Scientific and Technologic Development Project,China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2018年第25卷第5期

页      码：1240-1250页

摘      要：Soft rock surrounding deep roadway has poor stability and long-term rheological effect. More and larger deformation problems of surrounding rock occur due to adverse supporting measures for such roadways, which not only affects the engineering safety critically but also improves the maintenance costs. This paper takes the main rail roadway with severely deformation in China＇s Zaoquan coal mine as an example to study the long-term deformation tendency and damage zone by means of in-situ deformation monitoring and acoustic wave testing technique. A three-dimensional finite element model reflecting the engineering geological condition and initial design scheme is established by ABAQUS. Then, on the basis of field monitoring deformation data, the surrounding rock geotechnical and theological parameters of the roadway are obtained by back analysis. A combined supporting technology with U-shaped steel support and anchor-grouting is proposed for the surrounding soft rock. The numerical simulation of the combined supporting technology and in-situ deformation monitoring results show that the soft rock surrounding the roadway has been held effectively.

主 题 词：soft rock roadway rheological effect supporting technology numerical simulation reinforcement 

学科分类：0810[工学-土木类] 081901[081901] 0819[工学-海洋工程类] 0806[工学-电气类] 08[工学] 0805[工学-能源动力学] 0703[理学-化学类] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1007/s11771-018-3821-9

馆 藏 号：203294651...