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投稿时间:2020-03-21 修订日期:2020-03-30
投稿时间:2020-03-21 修订日期:2020-03-30
中文摘要: 为了解决深井软岩巷道变形破坏严重及支护困难的问题,采用数值模拟手段及井下现场工业试验对深井软岩巷道的稳定性及支护方案进行了研究,结果表明:与矩形巷道相比,采用拱形巷道作为巷道断面的布置形状,能够有效改善巷道开挖后周边围岩的受力状态及应力值,能够在一定程度上增强巷道的稳定性;在对铜辉铜矿业深井脉外运输软岩巷道原支护现状进行相关分析的基础上,提出了“锚网+喷射混凝土+钢支架支护”的复合支护技术,经过井下现场工业试验可知,采用该复合支护方案能够有效控制软弱破碎围岩巷道的变形破坏。
Abstract:To solve the problems of serious deformation and damage of soft rock roadway in deep well and difficult support, numerical simulation methods and field industrial tests in underground were used to study the stability and support scheme of soft rock roadway in deep well. The results indicated that: In comparison with rectangular roadway, the use of arched roadway as the layout shape of the roadway section can effectively improve the stress state and stress value of the surrounding rock after the roadway excavated, and can enhance the stability of the roadway to a certain extent. Based on the related analysis of the original support status of the soft rock roadway outside the vein, a composite support technology of “anchor mesh + sprayed concrete + steel support” was proposed. It was concluded from underground field industrial tests that this adopted composite support scheme can effectively control the deformation and failure of weak and broken surrounding rock roadway.
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基金项目:"十三五”国家重点研发计划项目(2017YFC0602903)
作者 | 单位 | |
张小刚* | 伽师县铜辉矿业有限责任公司 | 3334537094@qq.com |
刘宁 | 伽师县铜辉矿业有限责任公司 | |
刘洪阳 | 伽师县铜辉矿业有限责任公司 | |
侯永强 | 北京科技大学 土木与环境工程学院 | 3334537094@qq.com |
引用文本:
张小刚,刘宁,刘洪阳,侯永强.基于FLAC3D数值模拟的深井软岩巷道稳定性及支护方案设计研究[J].有色金属(矿山部分),2020,72(5):19-25.
ZHANG Xiaogang,LIU Ning,LIU Hongyang,HOU Yongqiang.Research on stability and supporting scheme design of deep rock soft rock roadway based on FLAC3D numerical simulation[J].NONFERROUS METALS(Mining Section),2020,72(5):19-25.
张小刚,刘宁,刘洪阳,侯永强.基于FLAC3D数值模拟的深井软岩巷道稳定性及支护方案设计研究[J].有色金属(矿山部分),2020,72(5):19-25.
ZHANG Xiaogang,LIU Ning,LIU Hongyang,HOU Yongqiang.Research on stability and supporting scheme design of deep rock soft rock roadway based on FLAC3D numerical simulation[J].NONFERROUS METALS(Mining Section),2020,72(5):19-25.