爆炸荷载下深部围岩分区破裂模型试验研究

doi:10.13722/j.cnki.jrme.2015.0861

摘要
图/表
参考文献(30)
相关文章 (15)

全文: PDF (687 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要

为研究爆炸荷载效应对深部围岩分区破裂的影响，以淮南矿区丁集煤矿高地应力深部巷道为原型，借助胶结砂相似材料和深部巷道围岩破裂机制与支护技术模拟试验装置，在高轴地应力条件下开展深部围岩爆破开挖三维相似模型试验。模型试验结果表明：爆炸应变波信号包含压应变和拉应变，但以初始压应变为主，其随传播距离增大迅速衰减。爆炸荷载在洞壁附近产生了大量的微裂纹，导致其力学性能劣化和完整性降低，同时引起地应力的调整。轴向超载完毕，拱顶、侧墙和底板部位径向拉应变随距洞壁距离增大呈现出波峰与波谷间隔分布的波浪变化；在高轴地应力作用下，爆破荷载产生的微裂纹扩展、贯通，形成宏观破裂区，模型巷道侧墙围岩最先断裂破坏，随后是底板围岩，拱顶围岩最晚断裂，产生了明显的分区破裂现象。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	徐颖1
	2
	袁璞1
	2
	3

关键词 ：岩石力学, 深部岩体, 爆炸荷载, 分区破裂, 模型试验

Abstract：

To investigate the effect of blasting load on zonal disintegration in deep rock，taking high geostress roadway in Dingji coal mine of Huainan mine area as prototype，three dimensional geomechanical model test in high axial stress and blasting excavation has been carried out by cemented sand similar material and “capacity of deep rock breakage mechanics and supporting technique model test”. Model test results show that blasting strain wave signal contains both compressive strain and tensile strain，with predominant in initial compressive strain，and it attenuates quickly with propagation distance increasing. Blasting load produces some micro-cracks on similar materials nearby the boundary of roadway with deterioration of its mechanical properties and damage to its integrity. Moreover，the stress field has also been redistributed. After overload，the radial tensile strain of surrounding rock in all three positions，vault，side wall，and floor，presents a non-monotonic change，interval distribution of peaks and troughs，with distance to model roadway increasing. Under high axial load，micro-cracks caused by blasting load propagate and connect to form a macro fractured zone. The first fracture position is surrounding rock in side wall of model roadway，next fracture position is surrounding rock in floor，then last fracture position is surrounding rock in vault. After overload，there is an obvious zonal disintegration phenomenon in model.

Key words： rock mechanics deep rock blasting load zonal disintegration model test

引用本文:

徐颖1，2，袁璞1，2，3. 爆炸荷载下深部围岩分区破裂模型试验研究[J]. 岩石力学与工程学报, 2015, 34(S2): 3844-3851.
XU Ying1，2，YUAN Pu1，2，3. Model test of zonal disintegration in deep rock under blasting load. , 2015, 34(S2): 3844-3851.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.0861 或 https://rockmech.whrsm.ac.cn/CN/Y2015/V34/IS2/3844

[1]	钱七虎，李树忱. 深部岩体工程围岩分区破裂化现象研究综述[J]. 岩石力学与工程学报，2008，27(6)：1 278-1 284.(QIAN Qihu，LI Shuchen. A review of research on zonal disintegration phenomenon in deep rock mass engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(6)：1 278-1 284.(in Chinese))
[2]	中国科协学会学术部. 深部岩石工程围岩分区破裂化效应[M]. 北京：中国科学技术出版社，2008：3-11.(Academic department of china association for science and technology. zonal disintegration effect in deep rock engineering[M]. Beijing：China Science and Technology Press，2008：3-11.(in Chinese))
[3]	李术才，王汉鹏，钱七虎，等. 深部巷道围岩分区破裂化现象现场监测研究[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))
[4]	METLOV L S，MOROZOV A F，ZBORSHCHIK M P. Rock failure physical foundations of mechanism of zonal disintegration in deep level tunnel[J]. Journal of Mining Science，2002，38(2)：150-155.
[5]	GUZEV M A，PAROSHIN A A. Non-euclideanmodel of the zonal disintegration of rocks around an underground working[J]. Journal of Applied Mechanics and Technical Physics，2001，42(1)：131-139.
[6]	ZHUZM，WANGC，KANGJM，et al. Study on the mechanism of zonal disintegration around an excavation[J]. International Journal of Rock Mechanics and Mining Sciences，2014，67：88-95.
[7]	袁亮，顾金才，薛俊华，等. 深部围岩分区破裂化模型试验研究[J]. 煤炭学报，2014，39(6)：987-993.(YUAN Liang，GU Jincai，XUE Junhua，et al. Model test on research on the zonal disintegration in deep rock[J]. Journal of China Society，2014，39(6)：987-993.(in Chinese))
[8]	张强勇，张绪涛，向文，等. 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)：1 564-1 571.(ZHANG Qiangyong，ZHANG Xutao，XIANG Wen，et al. Model test study of zonal disintegration in deep rock mass under different cavern shapes and loading conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(8)：1564- 1571.(in Chinese))
[9]	钱七虎. 深部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 characteristic 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))
[10]	顾金才，顾雷雨，陈安敏，等. 深部开挖洞室围岩分层断裂破坏机制模型试验研究[J]. 岩石力学与工程学报，2008，27(3)：433-438.(GU Jincai，GU Leiyu，CHEN Anmin，et al. 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))
[11]	贺永年，张后全. 深部围岩分区破裂化理论和实践的讨论[J]. 岩石力学与工程学报，2008，27(11)：2 369-2 375.(HE Yongnian，ZHANG Houquan. Discussion on theory and practice of zonal disintegration in surrounding rocks of deep roadways[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(11)：2369-2375.(in Chinese))
[12]	贺永年，蒋斌松，韩立军，等. 深部巷道围岩间隔性区域断裂研究[J]. 中国矿业大学学报，2008，37(3)：300-304.(HE Yongnian，JIANG Binsong，HAN Lijun，et al. Study of intermittent zonal fracturing of surrounding rock in deep roadways[J]. Journal of China University of Mining and Technology，2008，37(3)：300-304.(in Chinese))
[13]	张强勇，陈旭光，林波，等. 深部巷道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(9)：1 757- 1 766.(ZHANG Qiangyong，CHEN Xuguang，LIN Bo，et al. Study of 3D geomechanical model test of zonal disintegration of surrounding rock of deep tunnel[J]. Chinese Journal of Rock Mechanics andEngineering，2009，28(9)：1757-1766.(in Chinese))
[14]	张绪涛，张强勇，向文，等. 深部层状节理岩体分区破裂模型试验研究[J]. 岩土力学，2014，35(8)：2 247-2 254.(ZHANG Xutao，ZHANG Qiangyong，XIANG Wen，et al. Model test study of zonal disintegration in deep layered jointed rock mass[J]. Rock and Soil Mechanics，2014，35(8)：2 247-2 254.(in Chinese))
[15]	潘一山，李英杰，唐鑫，等. 岩石分区破裂化现象研究[J]. 岩石力学与工程学报，2007，26(增1)：3 335-3 341.(PAN Yishan，LI Yingjie，TANG Xin，et al. Study on zonal disintegration of rock[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：3 335-3 341.(in Chinese))
[16]	张智慧，王学滨，潘一山. 利用多种相似材料模拟分区破裂现象的试验研究[J]. 水资源与水工程学报，2011，22(3)：22-24.(ZHANG Zhihui，WANG Xuebin，PAN Yishan. Experiment on utilizing multi-kinds of similar materials to simulate zonal disintegration phenomenon[J]. Journal of Water Resources and Water Engineering，2011，22(3)：22-24.(in Chinese))
[17]	宋义敏，潘一山，章梦涛，等. 深部高应力载荷作用下的洞室变形破坏实验[J]. 辽宁工程技术大学学报：自然科学版，2008，27(4)：489-491.(SONG Yimin，PAN Yishan，ZHANG Mengtao，et al. Experimental study on deformation failure of deep rock mass under high stress load[J]. Journal of Liaoning Technical University：Natural Science，2008，27(4)：489-491.(in Chinese))
[18]	杨仁树. 我国煤矿岩巷安全高效掘进技术现状与展望[J]. 煤炭科学技术，2013，41(9)：18-23.(YANG Renshu. Present status and outlook on safety and high efficient heading technology of mine rock roadway in China[J]. Coal Science and Technology，2013，41(9)：18-23.(in Chinese))
[19]	YUANP，XUY，LIUYZ，et al.Uniaxial impact compression tests and analyses on cemented sand similar material in various sand-cemented ratios[J]. Electronic Journal of Geotechnical Engineering，2014，19(Y)：8991-9002.
[20]	袁璞，徐颖. 养护时间对胶结砂相似材料抗压性能的影响[J]. 振动与冲击，2015，34(13)：200-204.(YUAN Pu，XU Ying. Influence of curing time to compressive properties of cemented sand similar materials[J]. Journal of Vibration and Shock，2015，34(13)：200-204.(in Chinese))
[21]	章冲，薛俊华，张向阳，等. 地质力学模型试验中围岩断裂缝测试技术研究与应用[J]. 岩石力学与工程学报，2013，32(7)：1 331-1 336.(ZHANG Chong，XUE Junhua，ZHANG Xiangyang，et al. Research on surrounding rock fissure testing technology in geomechanical model test and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(7)：1331-1326.(in Chinese))
[22]	马芹永，袁璞，韩博，等. 立井井筒掘进爆破模型试验超动态应变测试系统设计[J]. 爆破，2013，30(4)：50-53.(MA Qinyong，YUAN Pu，HAN Bo，et al. Design of super dynamic strain testing system of shaft blasting model experiment[J]. Blasting，2013，30(4)：50-53.(in Chinese))
[23]	袁文华，马芹永，黄伟. 楔形掏槽微差爆破模型试验与分析[J]. 岩石力学与工程学报，2012，31(增1)：3 352-3 356.(YUAN Wenhua，MA Qinyong，HUANG Wei. Model experiment and analysis of wedge-shaped cutting millisecond blasting[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：3 352-3 356.(in Chinese))
[24]	MAQ Y，YUANP，HANB，et al. Dynamic strain wave analyses of parallel cut blasting model tests for vertical shaft[C]//Rock Engineering and Rock Mechanics：Structures in and on Rock Masses-Proceedings of EUROCK 2014. Netherlands：Taylor andFrancis-Balkema，2014：1159-1164.
[25]	高祥涛，解北京. 岩石中爆炸应变波信号测试与分析[J]. 爆破，2013，30(2)：41-46.(GAO Xiangtao，XIE Beijing. Analysis and measurement of blasting strain wave signal in rock[J]. Blasting，2013，30(2)：41-46.(in Chinese))
[26]	MA QY，YUAN P，ZHANG JS，et al. Blast-induced damage on millisecond blasting model test with multicircle vertical blastholes[J]. Shock and Vibration，2015，Article ID 504043.
[27]	褚怀保，杨小林，梁为民，等. 煤体爆破损伤规律模拟试验研究[J]. 采矿与安全工程学报，2011，28(3)：488-492.(CHU Huaibao，YANG Xiaolin，LIANG Weimin，et al. Experimental study on the blast damage law of the simulated coal[J]. Journal of Mining and Safety Engineering，2011，28(3)：488-492.(in Chinese))
[28]	颜峰，姜福兴. 爆炸冲击载荷作用下岩石的损伤实验[J]. 爆炸与冲击，2009，29(3)：275-280.(YAN Feng，JIANG Fuxing. Experiment on rock damage under blasting load[J]. Explosion and Shock Waves，2009，29(3)：275-280.(in Chinese))
[29]	严鹏，卢文波，陈明，等. 深部岩体开挖方式对损伤区影响的试验研究[J]. 岩石力学与工程学报，2011，30(6)：1 097-1 106. (YAN Peng，LUO Wenbo，CHEN Ming，et al. In-situ research on influence of excavation method on induce damage zone in deep tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)：1 097-1 106.(in Chinese))
[30]	陈伟，王明洋，顾雷雨. 深埋洞室围岩分区断裂现象模型试验解析[J]. 岩石力学与工程学报，2009，28(增1)：2 680-2 686. (CHEN Wei，WANG Mingyang，GU Leiyu. Solution to model test of layered failure within rock mass around deep-buried tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2680-2686.(in Chinese))