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| INSIGHTS OF INNOVATION AND DEVELOPMENT OF ROCK MASS STRUCTURE DYNAMIC CONTROLLING FROCONSTRUCTION- TRIGGERED GEOHAZARD |
| SHANG Yanjun，LI Kun，WANG Kaiyang |
| (Key Laboratory of Engineering Geomechanics，Institute of Geology and Geophysics，Chinese Academy of Sciences，Beijing 100029，China) |
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Abstract The deformation-controlling theory of rock mass structure，a basic theory in engineering geology，is critically important for understanding the deformation and failure patterns of rocks. It is also essential for calibration of mechanical parameters and stability evaluation of rock masses. At present，artificial construction- induced disturbance is intense；and the dynamic variations of rock mass discontinuities and the rapidly intensive excavation disturbance associated with engineering performances become extremely complicated. The strength criteria of rock mass need to be considered in combination of rock deformation monitoring. Therefore，the dynamic control and adjustment of the rock mass structure are one of great challenging issues for engineering geologists. Although it is not easy to predict geological defects，we need to know the dynamic variations of geological structures in terms of construction-induced geohazards. Consequently，the controlling effects should be updated with elapsed time. Based on this，the discontinuity dynamic adjusting and controlling opinion(DDC) is put forward，which may be as attributed to the development of rock mass structure controlling theory. For comparison，a case of the Shanggongshan tunnel was employed where dynamic control and adjustment of rock mass during construction were not considered. Various geological defects such as caves and faults along the anticline axis were unexpectedly encountered in construction of this project. Thus，back analysis of the TBM accidents which were time-consuming and caused frequent variations in designs was performed to better understand this issue. This case shows that the dynamic changes in rock mass structure are the results of excavation-induced disturbances. Consequently，counter-measures are to be considered in the framework of the proposed DDC to avoid those unexpected results.
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Received: 05 November 2012
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| [1] 谷德振. 岩体工程地质力学基础[M]. 北京：科学出版社，1979： 1–129.(GU Dezhen. Basement of engineering geomechanics of rock mass[M]. Beijing：Science Press，1979：1–129.(in Chinese))
[2] 孙玉科，李建国. 岩质边坡稳定性的工程地质研究[J]. 地质科学，1965，(4)：330–352.(SUN Yuke，LI Jianguo. Engineering geological studies of the stability of slope in rock[J]. Chinese Journal of Geology：Scientia Geologica Sinica，1965，(4)：330–352.(in Chinese))
[3] 孙广忠. 岩体结构力学[M]. 北京：科学出版社，1988：7.(SUN Guangzhong. Rock mass structural mechanics[M]. Beijing：Science Press，1988：7.(in Chinese))
[4] 孙广忠. 论“岩体结构控制论”[J]. 工程地质学报，1993，(1)：14–18.(SUN Guangzhong. On the theory of structure-controlled rockmass[J]. Journal of Engineering Geology，1993，(1)：14–18.(in Chinese))
[5] 孙广忠. 地质工程理论与实践[M]. 北京：地震出版社，1996：45–52.(SUN Guangzhong. Theory and practice of geological engineering[M]. Beijing：Seismic Publishing House，1996：45–52.(in Chinese))
[6] 黄鼎成. 论工程地质评价中地质结构的级序性问题[R]. 北京：科学出版社，1987：15–24.(HUANG Dingcheng. Magnitude sequential problems in engineering geological assessment[R]. Beijing：Science Press，1987：15–24.(in Chinese))
[7] HOEK E，BROWN E T. Underground excavation in rock[R]. London：The Institution of Mining and Metallurgy，1980.
[8] 中华人民共和国国家标准编写组. GB50287—1999水利水电工程地质勘察规范[S]. 北京：中国计划出版社，1999.(The National Standards Compilation Group of People?s Republic of China. GB50287—1999 Specifications for engineering geological investigation for hydropower projects[S]. Beijing：China Planning Press，1999.(in Chinese))
[9] 中华人民共和国国家标准编写组. GB50086—2001锚杆喷射混凝土支护技术规范[S]. 北京：中国计划出版社，2001.(The National Standards Compilation Group of People?s Republic of China. GB50086—2001 Specifications for bolt-shotcrete support[S]. Beijing：China Planning Press，2001.(in Chinese))
[10] 王思敬. 论岩石的地质本质性及其岩石力学演绎[J]. 岩石力学与工程学报，2009，28(3)：433–450.(WANG Sijing. Geological nature of rock and its deduction for rock mechanics[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(3)：433–450.(in Chinese))
[11] 杨志法，尚彦军，张路青，等. 川藏公路地质灾害及其防治对策研究[M]. 北京：科学出版社，2006：54–89.(YANG Zhifa，SHANG Yanjun，ZHANG Luqing，et al. Geohazards along Sichuan-Tibet Highway and mitigation measurements[M]. Beijing：Science Press，2006：54–89.(in Chinese))
[12] 尚彦军，杨志法，袁广祥，等. 雅鲁藏布江大拐弯北部川藏公路地质灾害发育与分布研究[M]. 北京：中国铁道出版社，2010：59–60，83–84.(SHANG Yanjun，YANG Zhifa，YUAN Guangxiang，et al. Geohazards development and distribution along Sichuan-Tibet Highway in north of the Grand Canyon of Yarlu Tsangpo River[M]. Beijing：China Railway Publishing House，2010：59–60，83–84. (in Chinese))
[13] 林达明，尚彦军，陈明星，等. 雁门关隧道大变形突泥段地质结构与力学分析[J]. 岩石力学与工程学报，2012，31(增1)：2 751– 2 757.(LIN Daming，SHANG Yanjun，CHEN Mingxing，et al. Geological structures and mechanical analysis of large deformation mud bursting section in Yanmenguan Tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 751–2 757. (in Chinese))
[14] 许 兵，胡瑞林. 人地调谐时空论-防灾减灾的工程地质理论[J]. 工程地质学报，2004，(增)：449–552.(XU Bing，HU Ruilin. Time-space theory of harmony between human and earth-engineering geological theory of disaster prevention and disaster reduction[J]. Journal of Engineering Geology，2004，(Supp.)：449–552.(in Chinese))
[15] SHANG Y J，PARK H，YUAN G X，et al. From in-situ stress and discontinuities to the strength of granites：comparison and case study[J]. Geosciences Journal，2008，12(4)：361–372.
[16] SHANG Y J，PARK H，SHI Y Y，et al. Some large values of in-situ stress and related engineering geological problems in China[J]. Geosciences Journal，2010，14(2)：135–153.
[17] 尚彦军，史永跃，林达明，等. 从浅埋花岗岩体中地应力测试深度与应力值间关系分析剥蚀厚度[J]?. 岩土力学，2011，32(5)：1 430– 1 436.(SHANG Yanjun，SHI Yongyue，LIN Daming，et al. Analysis of relationship between buried depth and variation of in-situ stress in granitic rocks[J]. Rock and Soil Mechanics，2011，32(5)：1 430–1 436. (in Chinese))
[18] 王兰生，李天斌，赵其华. 浅生时效构造与人类工程[M]. 北京：地质出版社，1994：1–156.(WANG Lansheng，LI Tianbin，ZHAO Qihua. Shallow aging effect structure and human engineering[M]. Beijing：Geological Publishing House，1994：1–156.(in Chinese))
[19] 钱七虎. 分区破裂化研究现状和一些思考[C]// 中国科协学会学术部编. 深部岩石工程围岩分区破裂化效应. 北京：中国科学技术出版社，2008：3–6.(QIAN Qihu. Review of researches on zonal disintegration and some considerations[C]// Academic Department of China Association for Science and Technology ed. Zonal Disintegration Effects in Rock Engineering at Large Depths. Beijing：China Science and Technology Press，2008：3–6.(in Chinese))
[20] 黄光明，李 云. 掌鸠河引水供水工程输水工艺设计[J]. 云南水力发电，2003，19(2)：41–64.(HUANG Guangming，LI Yun. Design of diversion and supply water from Zhangjiu River of Yunan[J]. Yunnan Water Power，2003，19(2)：41–64.(in Chinese))
[21] SHANG Y J. WANG S J，YANG Z F，et al. Lessons from one tunnel boring machine project in Kunming City，China[C]// Proceedings of the IAEG2006. Nottingham，UK：[s. n.]，2006. |
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2013, Vol. 32 
