不同洞形与加载方式对深部岩体分区破裂影响的模型试验研究

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摘要随着地下工程开挖深度的增加，深部洞室围岩将产生不同于浅部洞室的分区破裂现象。为研究分区破裂的破坏机制和形成机制，以淮南矿区丁集煤矿高地应力深部巷道为工程背景，采用模型相似材料和数控真三维加载模型试验系统，开展圆洞、城门洞和马蹄形洞在沿洞轴向和垂直洞轴向加载条件下的洞室开挖真三维地质力学模型试验。模型试验研究表明：(1) 初始最大主应力平行于洞轴方向且其量值超过1.5倍围岩单轴抗压强度是深部岩体产生分区破裂的重要条件；(2) 洞室分区破裂的范围与洞形和洞室尺寸有关，洞室尺寸越大，分区破裂范围越大。模型试验结果有效揭示分区破裂的形成条件和破坏规律，为深入研究高地应力深部岩体的非线性变形特征与破坏机制奠定了坚实的试验基础。

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关键词 ：岩石力学, 深部岩体分区破裂, 数控真三维加载, 相似材料模型试验, 分区破裂条件

Abstract：The zonal disintegration phenomena which are different from shallow buried cavern will form with the increasing of the excavated depth of underground engineering. In order to investigate the failure mechanism and formation conditions of the zonal disintegration，taking the Dingji coal mine of Huainan mine area with high geostress as background，the true 3D geomechanical model tests for circular cavern，horseshoe cavern and gate cavern have been carried out by adopting model similar material and numerical controlling true 3D loading model system under different loading condiotions of the parallel loading and vertical loading along cavern axis direction. The model test results show that：(1) The zonal disintegration is going to happen when the direction of maximum principal stress is parallel to the tunnel axis and the value of stress exceeds 1.5 times uniaxial compressive strength of surrounding rock mass. (2) The boundary of zonal disintegration depends on the shape and size of cavern；the larger the size of the cavern is，the larger the zonal disintegration range is. The model test results help to reveal the generating condition and failure laws of zonal disintegration，which lays a solid test foundation for further studying nonlinear deformation characteristics and failure mechanism of deep rock mass.

Key words： rock mechanics;zonal disintegration of deep rock mass;digital control true 3D loading model test of similar material;zonal disintegration condition

收稿日期: 2012-12-25

引用本文:

张强勇1，张绪涛1，2，向文1，陈旭光3，曹冠华1，许孝滨1. 不同洞形与加载方式对深部岩体分区破裂影响的模型试验研究[J]. 岩石力学与工程学报, 2013, 32(8): 1564-1571.
ZHANG Qiangyong1，ZHANG Xutao1，2，XIANG Wen1，CHEN Xuguang3，CAO Guanhua1，XU Xiaobin1. MODEL TEST STUDY OF ZONAL DISINTEGRATION IN DEEP ROCK MASS UNDER DIFFERENT CAVERN SHAPES AND LOADING CONDITIONS. , 2013, 32(8): 1564-1571.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/I8/1564

[2]	钱七虎. 深部岩体工程响应的特征科学现象及“深部”的界定[J]. 东华理工学院学报，2004，27(1)：1-5.(QIAN Qihu. The character scientific phenomena of engineering response to deep rock mass and the implication of deepness[J]. Journal of East China Institute of Technology，2004，27(1)：1-5.(in Chinese)) " target="_blank">
[9]	刘高，王小春，聂德新. 金川矿区地下洞室围岩应力场特征及演化机制[J]. 地质灾害与环境保护，2002，13(4)：40-45.(LIU Gao，WANG Xiaochun，NIE Dexin. The characteristics and evolution mechanism of stresses in surrounding rocks of underground works in Jinchuan mine[J]. Journal of Geological Hazards and Environment Preservation，2002，13(4)：40-45.(in Chinese)) " target="_blank">
[10]	李术才，王汉鹏，钱七虎，等. 深部洞室围岩分区破裂现象现场监测研究[J]. 岩石力学与工程学报，2008，27(8)：1 545-1 553.(LI Shucai，WANG Hanpeng，QIAN Qihu，et al. In-situ monitoring research on zonal disintegration of surrounding rock mass in deep mine roadways[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(8)：1 545-1 553.(in Chinese)) " target="_blank">
[12]	周小平，周敏，钱七虎. 深部岩体损伤对分区破裂效应的影响[J]. 固体力学学报，2012，33(3)：242-250.(ZHOU Xiaoping，ZHOU Min，QIAN Qihu. Influence of rock damage on zonal disintegration around deep circle tunnels[J]. Chinese Journal of Solid Mechanics，2012，33(3)：242-250.(in Chinese)) " target="_blank">
[3]	SHEMYAKIN E I，FISENKO G L，KURLENYA M V，et al. Zonal disintegration of rocks around underground workings，part I：data of in-situ observations[J]. Journal of Mining Science，1986，22(3)：157-168. " target="_blank">
[15]	周小平，钱七虎. 深埋巷道分区破裂机制[J]. 岩石力学与工程学报，2007，26(5)：877-885.(ZHOU Xiaoping，QIAN Qihu. Zonal fracturing mechanism in deep tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(5)：877-885.(in Chinese))
[7]	ADAMS G D，JAGER A J. Etroscopic observations of rock fracturing ahead of the stope faces in deep-level gold mines[J]. Journal of the South Africa Institute of Mining and Metallurgy，1980，(2)：115-127. " target="_blank">
[1]	傅冰骏. 国际岩石力学发展动向[J]. 岩石力学与工程学报，1997，16(2)：195-196.(FU Bingjun. Recent developments in rock mechanics and rock engineering[J]. Chinese Journal of Rock Mechanics and Engineering，1997，16(2)：195-196.(in Chinese))
[4]	SHEMYAKIN E I，FISENKO G L，KURLENYA M V，et al. Zonal disintegration of rocks around underground workings，part II：rock fracture simulated in equivalent materials[J]. Journal of Mining Science，1986，22(4)：223-232. " target="_blank">
[5]	SHEMYAKIN E I，FISENKO G L，KURLENYA M V，et al. Zonal disintegration of rocks around underground workings，part III：theoretical concepts[J]. Journal of Mining Science，1987，23(1)：1-6. " target="_blank">
[6]	SHEMYAKIN E I，KURLENYA M V，OPARIN V N，et al. Zonal disintegration of rocks around underground workings，part IV：practical applications[J]. Journal of Mining Science，1989，25(4)：297-302. " target="_blank">
[8]	方祖烈. 软岩巷道维护原理与控制措施[C]// 何满潮编. 中国煤矿软岩巷道支护理论与实践. 北京：煤炭工业出版社，1996：64-70. (FANG Zulie. Support principles for roadway in soft rock and its controlling measures[C]// HE Manchao ed. Soft Rock Tunnel Support in Chinese Mines：Theory and Practice. Beijing：China Coal Industry Publishing House，1996：64-70.(in Chinese)) " target="_blank">
[11]	顾金才，顾雷雨，陈安敏. 深部开挖洞室围岩分层断裂破坏机制模型试验与分析[J]. 岩石力学与工程学报，2008，27(3)：433-438. (GU Jincai，GU Leiyu，CHEN Anmin. Model test study on mechanism of layered fracture within surrounding rock of tunnels in deep stratum[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(3)：433-438.(in Chinese))
[13]	唐春安，张永彬. 岩体间隔破裂机制及演化规律初探[J]. 岩石力学与工程学报，2008，27(7)：1 362-1 369.(TANG Chun?an，ZHANG Yongbin. Discussion on mechanism and evolution laws of fracture spacing in rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)：1 362-1 369.(in Chinese)) " target="_blank">
[14]	张强勇，陈旭光，林波. 深部洞室围岩分区破裂三维地质力学模型试验研究[J]. 岩石力学与工程学报，2009，28(8)：1 757-1 766.(ZHANG Qiangyong，CHEN Xuguang，LIN Bo. Study of 3D geomechanical model test of zonal disintegration of surrounding rock of deep tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(8)： 1 757-1 766.(in Chinese)) " target="_blank">
[16]	王明洋，周泽平，钱七虎. 深部岩体的构造和变形与破坏问题[J].岩石力学与工程学报，2006，25(3)：448-455.(WANG Mingyang，ZHOU Zeping，QIAN Qihu. Tectonic，deformation and failure problems of deep rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(3)：448-455.(in Chinese))
[17]	戚承志，钱七虎，王明洋，等. 深隧道围岩分区破裂的数学模拟[J]. 岩土力学，2012，33(11)：3 439-3 446.(QI Chengzhi，QIAN Qihu，WANG Mingyang，et al. Mathematical modeling of zonal disintegration of surrounding rock near deep tunnels[J]. Rock and Soil Mechanics，2012，33(11)：3 439-3 446.(in Chinese)) " target="_blank">
[19]	张强勇，李术才，李勇，等. 地下工程模型试验新方法、新技术及工程应用[M]. 北京：科学出版社，2012：1-80.(ZHANG Qiangyong，LI Shucai，LI Yong，et al. New method and new technology of model test for underground engineering and its application[M]. Beijing：Science Press，2012：1-80.(in Chinese)) " target="_blank">
[20]	张强勇，李术才，向文，等. 高地应力真三维加载模型试验系统[P]. 中国，ZL200810016641.0，2010.(ZHANG Qiangyong，LI Shucai，XIAN Wen，et al. True 3D loading model test of high geostress[P]. China，ZL200810016641.0，2010.(in Chinese)) " target="_blank">
[18]	张强勇，李术才，郭小红. 铁晶砂胶结新型岩土相似材料的研制及其应用[J]. 岩土力学，2008，29(8)：2 126-2 130.(ZHANG Qiangyong，LI Shucai，GUO Xiaohong. Research and development of new typed cementations geotechnical similar material for iron crystal sand and its application[J]. Rock and Soil Mechanics，2008，29(8)：2 126-2 130. (in Chinese)) " target="_blank">