U钢管混凝土支架支护技术在金川矿山的应用

doi:10.11872/j.issn.1005-2518.2017.05.057

黄金科学技术 ›› 2017, Vol. 25 ›› Issue (5): 57-66.doi: 10.11872/j.issn.1005-2518.2017.05.057

U钢管混凝土支架支护技术在金川矿山的应用

李光¹,马凤山^1* ，郭捷¹，卢蓉¹，陈仲杰²，寇永渊²

1.中国科学院地质与地球物理研究所，中国科学院页岩气与地质工程重点实验室，北京 100029；
2.金川集团股份有限公司二矿区，甘肃金昌 737100

收稿日期:2017-07-27 修回日期:2017-08-18 出版日期:2017-10-30 发布日期:2018-02-12
通讯作者: 马凤山（1964-），男，河北吴桥人，研究员，博士生导师，从事地质工程与地质灾害方面的研究工作。fsma@mail.iggcas.ac.cn
作者简介:李光（1991-），男，黑龙江双鸭山人，博士研究生，从事地质工程研究工作。253267234@qq.com
基金资助:
国家自然科学基金项目“陡倾矿体充填开采岩移规律与充填体稳定性研究”（编号：41372323）和“岩石对成岩压力记忆的实验测试研究”（编号：41402280）联合资助

Application of Steel Tube Confined Concrete Support in Jinchuan Mine

LI Guang¹，MA Fengshan¹，GUO Jie¹，LU Rong¹，CHEN Zhongjie²，KOU Yongyuan²

1.Key Laboratory of Shale Gas and Geoengineering，Institute of Geology and Geophysics，Chinese Academy of Sciences，Beijing 100029，China；
2.Mining Area No.2 Jinchuan Group Co.，Ltd.，Jinchang 737100，Gansu，China

Received:2017-07-27 Revised:2017-08-18 Online:2017-10-30 Published:2018-02-12

摘要/Abstract

摘要：

为解决金川矿区深部软岩巷道支护问题，引入了钢管混凝土支架支护技术。以金川二矿区1 000 m试验巷道为原型，在充分分析巷道工程地质条件及原支护条件下围岩的变形特征后，设计安装了现场监测设备，并利用FLAC3D数值模拟软件对比分析了3种支护条件下的巷道围岩变形情况。研究结果表明：（1）无支护条件下开挖巷道，巷道围岩最大变形量可达400 mm，围岩的顶底和两帮位移较大，巷道围岩塑性区分布范围为一个长轴半径为15 m、短轴半径为9 m的椭圆；（2）“锚网喷+U型钢拱架”联合支护条件下，巷道围岩最大位移量约为35 mm，较大位移出现在两帮处，顶、底位移受到较好的控制，巷道围岩塑性区分布较无支护条件下小很多；（3）“锚网喷+钢管混凝土支架”联合支护条件下，巷道围岩最大位移量为28.5 mm，相比于U型钢支护条件下减小约20%，围岩发生位移和塑性变形的范围也相对减小，巷道围岩更稳定；（4）通过对比数值模拟计算与现场监测结果可知，2种方法所得结果变化趋势相似，皆表现为钢管混凝土支架顶拱处的变形较稳定，数值上较两帮小，左、右两帮变形值较大，说明在1 000 m巷道所处地质条件下，钢管混凝土支架能有效地控制巷道位移，减小塑性区，但两帮处变形相对严重，应给予重点关注。

关键词: 钢管混凝土支架, 巷道支护, 金川矿山, 深井巷道, FLAC3D模拟, 巷道围岩变形

Abstract:

In order to solve the supporting issues of deep soft rock roadway in Jinchuan mine，the steel tube confined concrete supporting technique is used.Taking the 1 000 m tentative roadway in Jinchuan No.2 mine as a prototype，this paper applied a site monitoring and analyzed the surround rock deformation features under three different supporting conditions through FLAC3D software based on a full understanding of the engineering geological condition and the characteristics of roadway deformation under the previous support.The results show that：（1）The maximum surrounding rock displacement can reach 400 mm without support measures，and the displacement of two sides，roof and floor are large.The plastic areas distribution of surrounding rock is an approximate ellipse whose radius of longer axis is 15 m and the other is 9 m.（2）In the condition of composite supporting scheme of bolt-mesh-anchor and U-shaped steel，the maximum surrounding rock displacement is about 35 mm，the displacement of two sides are large，and deformations of roof and floor are controlled well.The plastic areas distribution of surrounding rock is much smaller than no supporting one.（3）In the condition of composite supporting scheme of bolt-mesh-anchor and STCCS（steel tube confined concrete support），the maximum surrounding rock displacement is about 28.5 mm which is reduced by about 20% compared with U-shaped steel support.The plastic areas distribution of surrounding rock is smaller and the roadway is more stable.（4）Both the results of field practice and numerical simulation show that the deformation of the roof is stable and two sides are large under the condition of STCCL.Therefore，STCCL can possess high load-bearing capacity and can be used as relatively reliable support for deep roadways，and the deformation of two sides should be paid more attention.

Key words: steel tube confined concrete support, roadway support, Jinchuan mine, roadway of deep mine, FLAC3D numerical simulation, deformation of surrounding rock

中图分类号:

TD353

李光，马凤山，郭捷，卢蓉，陈仲杰，寇永渊. U钢管混凝土支架支护技术在金川矿山的应用[J]. 黄金科学技术, 2017, 25(5): 57-66.

LI Guang，MA Fengshan，GUO Jie，LU Rong，CHEN Zhongjie，KOU Yongyuan. Application of Steel Tube Confined Concrete Support in Jinchuan Mine[J]. Gold Science and Technology, 2017, 25(5): 57-66.

参考文献

［1］ Gao Yanfa，Liu Keming，He Xiaosheng，et al.Steel tube concrete support applied to dynamic pressure roadway in kilometers deep mine［J］.Coal Science and Technology，2015，43（8）：7-12.［高延法，刘珂铭，何晓升，等.钢管混凝土支架在千米深井动压巷道中的应用［J］.煤炭科学技术，2015，43（8）：7-12.］
［2］ He Manchao，Xie Heping，Peng Suping，et al.Study on rock mechanics in deep mining engineering［J］.Chinese Journal of Rock Mechanics and Engineering，2005，24（16）：2803- 2813.［何满潮，谢和平，彭苏萍，等.深部开采岩体力学研究［J］.岩石力学与工程学报，2005，24（16）：2803-2813.］
［3］ Hou C J.Review of roadway control in soft surrounding rock under dynamic pressure［J］.Journal of Coal Science and Engineering，2003，9（1）：1-7.
［4］ Liu Guolei.Research on Steel Tube Confined Concrete Supports Capability and Soft Rock Roadway Compression Ring Strengthening Supporting Theory［D］.Beijing：China University of Mining and Technology，2013.［刘国磊.钢管混凝土支架性能与软岩巷道承压环强化支护理论研究［D］.北京：中国矿业大学，2013.］
［5］ Zhang Nong，Wang Baogui，Zheng Xigui，et al.Analysis on grouting reinforcement results in secondary support of soft rock roadway in kilometer deep mine［J］.Coal Science and Technology，2010，38（5）：34-38，46.［张农，王保贵，郑西贵，等.千米深井软岩巷道二次支护中的注浆加固效果分析［J］.煤炭科学技术，2010，38（5）：34-38，46.］
［6］ Sun Xiaoming，He Manchao.Numerical simulation research on coupling support theory of roadway within soft rock at depth［J］.Journal of China University of Mining & Technology，2005， 34（2）：166-169.［孙晓明，何满潮.深部开采软岩巷道耦合支护数值模拟研究［J］.中国矿业大学学报，2005，34（2）：166-169.］
［7］ Liu Keming.Compressed and Bending Performance Experiment of Concrete Filled Steel Tube Circular Arch and Supporting Application［D］.Beijing：China University of Mining and Technology，2016.［刘珂铭.钢管混凝土圆弧拱压弯性能实验与支护应用［D］.北京：中国矿业大学，2016.］
［8］ Cai Shaohuai.Modern Steel Tube Confined Concrete Structures［M］.Beijing：China Communications Press，2003.［蔡绍怀.现代钢管混凝土结构［M］.北京：人民交通出版社，2003.］
［9］ Han Linhai.Theory and Practice of Steel Tube Confined Concrete Structures［M］.Beijing：Science Press，2007.［韩林海.钢管混凝土结构理论与实践［M］.北京：科学出版社，2007.］
［10］ Garder N J，Jacobson E R.Structural behavior of concrete filled steel tubes［J］. Journal Proceedings，1967，64（7）：38-64.
［11］ GaoYanfa.Supporting equipment：China，200610113804.4［P］.2007-05-09.［高延法.支撑装置：中国，200610113801. 4［P］.2007-05-09.］
［12］ Wang Bo.Analysis on the Laws of Tunnel Deformation in Soft Rock and the Supporting Technology of Concrete-filled Steel Tube Surpport［D］.Beijing：China University of Mining and Technology，2009.［王波.软岩巷道变形机理分析与钢管混凝土支架支护技术研究［D］.北京：中国矿业大学，2009.］
［13］ Li Xuebin.Steel Tube Confined Concrete Strength and the Roadway Compression on Ring Enhanced Support Theory［D］.Beijing：China University of Mining and Technology，2012.［李学彬.钢管混凝土支架强度与巷道承压环强化支护理论研究［D］.北京：中国矿业大学，2012.］
［14］ Qu Guanglong.Research on Flexural Performance of Concrete-filled Steel Tubular Surpport and Its Application［D］.Beijing：China University of Mining and Technology，2013.［曲广龙.钢管混凝土支架结构抗弯性能研究及应用［D］.北京：中国矿业大学，2013.］
［15］ Liu G L，Wang J，Wang H B.Application research on concrete filled steel tube supports supporting technology in stress concentration roadway［J］.Advanced Materials Research，2012，594-597：773-778.
［16］ Li X B，Ma Z X，Liu G L.Research on steel tube confined concrete supports support technology for soft rock road- way in coal bed washout［J］.Applied Mechanics and Materials，2011，121-126：3471-3476.
［17］ Ma Fengshan，Zhao Haijun，Guo Jie，et al.Influence of the multi-level mining of the ground movement in the Jinchuan No.2 mine［J］.Journal of Engineering Geology，2014，22（4）：757-764.［马凤山，赵海军，郭捷，等.金川二矿区多中段开采对地表岩移的影响研究［J］.工程地质学报，2014，2 2（4）：757-764.］
［18］ Ma Fengshan，Li Kepeng，Liu Feng，et al.Factors of fill mass stability in the Jinchuan No.2 mine［J］.Journal of Engineering Geology，2015，23（S）：504-508.［马凤山，李克蓬，刘锋，等.金川二矿区充填体稳定性的影响因素分析［J］.工程地质学报，2015，23（增）：504-508.
［19］ Yang Chunli，Wang Yongcai.Numerical simulation of deep roadway support optimization in Jinchuan mine area［J］.Metal Mine，2008（3）：71-74.［杨春丽，王永才.金川矿区深部巷道支护方式优化数值模拟研究［J］.金属矿山，2008（3）：71-74.］
［20］ Jinchuan Non-ferrous Metal Company，Chinese Society of Rock Mechanics and Engineering.Engineering Geology and Rock Mechanics Problems in Jinchuan Nickel Mine［M］.Jinchang：Jinchuan Non-ferrous Metal Company，1996.［金川有色金属公司，中国岩石力学与工程学会金川分会.金川镍矿开采的工程地质与岩石力学问题［M］.金昌：金川有色金属公司，1996.］
［21］ Jinchuan Non-ferrous Metal Company，Beijing Central Engineering & Research Institute for Non-ferrous Metallurgical Industry.The research report on the technical cooperation rock mechanics between China and Sweden［R］.Jinchang：Jinchuan Non-ferrous Metal Company，Beijing Central Engineering & Research Institute for Non-ferrous Metallurgical Industry，1988.［金川有色金属公司，北京有色设计研究总院.中国—瑞典关于中国金川二矿区采矿技术合作岩石力学研究报告［R］.金昌：金川有色金属公司，北京有色设计研究总院，1988.］
［22］ Itasca Consulting Group Inc.FLAC3D Users’ Manual［M］.Minneapolis：Itasca Consulting Group Inc.，2004.

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U钢管混凝土支架支护技术在金川矿山的应用

Application of Steel Tube Confined Concrete Support in Jinchuan Mine

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