采矿与安全工程学报2015，Vol.32Issue(6)：955-962,8.DOI:10.13545/j.cnki.jmse.2015.06.014
深部软岩巷道围岩变形机制及支护技术研究
Deformation mechanism of surrounding rock and support technology in deep soft rock roadway
摘要
Abstract
The west track roadway in Pengzhuang coal mine is a typical soft rock roadway, which is buried more than 700 meters underground, and is frequently passing through the weak fractured mud-stone layers. To better master the deformation and failure mechanism of the surrounding rock, based on field monitoring, borehole camera and geological radar detection, rock physical mechanics test, in-situ stress test and 25 kinds of numerical comparison experiments were carried out respectively in this paper. The results show that the deformation of the surrounding rock can be effectively reduced by the com-bined support scheme of high strength and pre-stressed anchor (bolt) & bolt-grouting, and the support-ing structure integrity and bearing capacity can also be effectively improved. As a new supporting method of deep soft rock roadway, the supporting effect of the combined support scheme has significant advantages comparing with the traditional supporting method.关键词
软岩巷道/高地应力/数值试验/变形破坏机制/锚注支护Key words
soft rock roadway/high ground stress/numerical test/deformation failure mechanism/bolt-grouting support分类
矿业与冶金引用本文复制引用
张红军,李海燕,李术才,白继文,郝亭宇,李红伟..深部软岩巷道围岩变形机制及支护技术研究[J].采矿与安全工程学报,2015,32(6):955-962,8.基金项目
国家自然科学基金项目(51309146) （51309146）
教育部博士点基金项目(20130131120084) （20130131120084）
山东大学自主创新基金项目(2012GN011) （2012GN011）
