朱集矿深井软岩巷道大变形机制及其控制研究

›› 2012, Vol. 33 ›› Issue (3): 827-834.

朱集矿深井软岩巷道大变形机制及其控制研究

黄兴¹，刘泉声^{1, 2}，乔正²

1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071；2. 山东科技大学土木建筑学院，山东青岛 266510

收稿日期:2010-10-26 出版日期:2012-03-10 发布日期:2012-03-12
作者简介:黄兴，男，1987年生，博士研究生，主要从事岩石力学和地下工程稳定性研究
基金资助:
中国科学院知识创新工程重要方向项目（No. kzcx2-yw-152）；“十一五”国家科技支撑计划项目（No. 2007BAK28）。

Research on large deformation mechanism and control method of deep soft roadway in Zhuji coal mine

HUANG Xing¹, LIU Quan-sheng^{1, 2}, QIAO Zheng²

1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, Shandong 266510, China

Received:2010-10-26 Online:2012-03-10 Published:2012-03-12

摘要/Abstract

摘要： 为了研究深井软岩巷道大变形机制及其控制对策，以淮南矿业集团朱集矿 885 m东翼轨道大巷为支护工程实践。该巷道为典型的深井高地应力软岩巷道，开挖后围岩表现出强烈非线性大变形特点，变形速率大。首先进行了围岩大变形等级识别，并基于Hoek-Brown弹塑性模型分析了巷道围岩的应力场、位移场，考虑巷道断面形状、围岩强度特征、巷道群扰动等影响，揭示了该巷道的大变形机制。针对 885 m轨道大巷提出了新支护方案，该方案尤其注重底板支护和底角抗剪支护。数值模拟和现场监测表明，该支护方案取得了良好效果，是一种有效控制深井软岩巷道大变形的支护方法。

关键词: 深井, 软岩巷道, 大变形, 底板支护, 底角抗剪支护

Abstract: In order to explore the large deformation mechanism and control method of deep soft roadway, analysis is made based on the engineering background of level -885 m east wing rail roadway of Zhuji Coal Mine, Huainan mining area. This roadway is a typical deep soft rock of high geostress, of which the surrounding rock becomes extremely unstable, showing strong nonlinear deformation characteristics and high deformation rate after excavation. Rating of the large deformation is firstly made. The surrounding rock stress field and displacement field are analyzed by Hoek-Brown elastoplastic constitutive model. Considering the strength of surrounding rock, the influences of disturbance, the cross-section shape, the roadway deformation mechanism are revealed finally. Optimized supporting method is proposed which is paid great attention to the floor supporting and bottom shearing support. Numerical simulation and field monitoring show that the new method obtained good effect and it’s a kind of effective method to controlling large deformation of surrounding rocks of deep roadway.

Key words: deep mine, soft roadway, large deformation, floor supporting, bottom shearing support

中图分类号:

TD 313+1

黄兴，刘泉声，乔正. 朱集矿深井软岩巷道大变形机制及其控制研究[J]. , 2012, 33(3): 827-834.

HUANG Xing , LIU Quan-sheng , QIAO Zheng. Research on large deformation mechanism and control method of deep soft roadway in Zhuji coal mine[J]. , 2012, 33(3): 827-834.

参考文献

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