大岗山水电站地下厂房洞室群围岩开挖损伤区研究

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Abstract Taking underground powerhouse of Dagangshan hydropower station as the research object， distribution range and damage deteriorating characteristics of excavation damage zone(EDZ) of underground chambers are studied through mechanical properties testing and long-term monitoring of the surrounding rock mass at construction stage. Based on measured displacements and observed EDZ，a method of back analysis is established by using the orthogonal design，support vector machine and particle swarm optimization. By testing，monitoring and back analysis of the EDZ，it?s found that the EDZ scope is within a range of 3–7 m；and different surrounding rock classes have different EDZ distribution ranges and different damage deterioration degrees. The results show that the better quality of surrounding rock mass is，the smaller scope of the EDZ is，and the higher damage deterioration degree of the EDZ is. The study which needs further theoretical and application research is preliminary；and it has certain reference value for design and construction of similar major projects.

Key words： hydraulic engineering Dagangshan hydropower station underground powerhouse surrounding rock mass excavation damaged zone back analysis

Received: 30 October 2012

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I4/734

[1]	READ R S. 20 years of excavation response studies at AECL?s Underground Research Laboratory[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(8)：1 251-1 275. " target="_blank">
[2]	MARTINO J，CHANDLER N. Excavation-induced damage studies at the Underground Research Laboratory[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(8)：1 413-1 426. " target="_blank">
[3]	SATO T，KIKUCHI T，SUGIHARA K. In-situ experiments on an excavation disturbed zone induced by mechanical excavation in Neogene sedimentary rock at Tono mine，central Japan[J]. Engineering Geology，2000，56(1/2)：97-108. " target="_blank">
[4]	ANDERSSON J C，MARTIN C D. The Aspo pillar stability experiment：part I—Experiment design[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(5)：865-878.
[5]	ANDERSSON J C，MARTIN C D，STILLE H. The Aspo pillar stability experiment：part II—Rock mass response to coupled excavation- induced and thermal-induced stresses[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(5)：879-895.
[6]	董方庭，宋宏伟，郭志宏，等. 巷道围岩松动圈支护理论[J]. 煤炭学报，1994，19(1)：22-32.(DONG Fangting，SONG Hongwei，GUO Zhihong，et al. Roadway support theory based on broken rock zone[J]. Journal of China Coal Society，1994，19(1)：22-32.(in Chinese)) " target="_blank">
[7]	PAUL Y R，MARTIN C D. Potential role of acoustic emission/ microseismicity investigations in the site characterization and performance monitoring of nuclear waste repositories[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1993，30(7)：797-803. " target="_blank">
[8]	FALLS S D，YOUNG R P. Acoustic emission and ultrasonic-velocity methods used to characterize the excavation disturbance associated with deep tunnels in hard rock[J]. Tectonophysics，1998，289(1/3)： 1-15. " target="_blank">
[9]	AUTIO J，SIITARI-KAUPPI M，TIMONEN J，et al. Determination of the porosity，permeability and diffusivity of rock in the excavation- disturbed zone around full-scale deposition holes using the 14C-PMMA and He-gas methods[J]. Journal of Contaminant Hydrology，1998， 35(1)：19-29. " target="_blank">
[10]	MAXWELL S C，YOUNG R P，READ R S. A micro-velocity tool to assess the excavation damaged zone[J]. International Journal of Rock Mechanics and Mining Sciences，1998，35(2)：235-247. " target="_blank">
[11]	KWON S，LEE C S，CHO S J，et al. An investigation of the excavation damaged zone at the KAERI underground research tunnel[J]. Tunnelling and Underground Space Technology，2009，24(1)：1-13.
[12]	杨永杰，刘传孝，蒋金泉，等. 巷道围岩松动圈的地质雷达探测及应用[J]. 工程地质学报，1997，5(3)：276-281.(YANG Yongjie，LIU Chuanxiao，JIANG Jinquan，et al. Fractured detection of rock zone in mine roadway with ground penetrating radar and its application[J]. Journal of Engineering Geology，1997，5(3)：276-281.(in Chinese))
[13]	靖洪文，李元海，梁军起，等. 钻孔摄像测试围岩松动圈的机制与实践[J]. 中国矿业大学学报，2009，38(5)：645-649.(JING Hongwen，LI Yuanhai，LIANG Junqi，et al. Borehole camera technology for measuring the relaxation zone of surrounding rock：mechanism and application[J]. Journal of China University of Mining and Technology，2009，38(5)：645-649.(in Chinese)) " target="_blank">
[14]	倪绍虎，肖明. 基于围岩松动圈的地下工程参数场位移反分析[J]. 岩石力学与工程学报，2009，28(7)：1 439-1 446.(NI Shaohu，XIAO Ming. Displacement back analysis of parameter field in underground engineering based on excavation damaged zone of surrounding rock[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(7)：1 439-1 446.(in Chinese))
[15]	董志宏，丁秀丽，卢波，等. 大型地下洞室考虑开挖卸荷效应的位移反分析[J]. 岩土力学，2008，29(6)：1 562-1 568.(DONG Zhihong，DING Xiuli，LU Bo，et al. Displacement back analysis of rock mechanical parameters of large-scale underground powerhouse with unloading surrounding rock mass[J]. Rock and Soil Mechanics，2008，29(6)：1 562-1 568.(in Chinese))
[16]	盛谦，丁秀丽，冯夏庭，等. 三峡船闸高边坡考虑开挖卸荷效应的位移反分析[J]. 岩石力学与工程学报，2000，19(增)：987-993. (SHENG Qian，DING Xiuli，FENG Xiating，et al. Displacement back analysis for the high slope of the Three Gorges Project considering the effect of excavation unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(Supp.)：987-993.(in Chinese))
[17]	赵洪波，冯夏庭. 位移反分析的进化支持向量机研究[J]. 岩石力学与工程学报，2003，22(10)：1 618-1 622.(ZHAO Hongbo，FENG Xiating. Study on genetic-support vector machine in displacement back analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(10)：1 618-1 622.(in Chinese))
[18]	许传华，任青文，周庆华. 基于支持向量机和模拟退火算法的位移反分析[J]. 岩石力学与工程学报，2005，24(22)：4 134-4 138.(XU Chuanhua，REN Qingwen，ZHOU Qinghua. Displacement back analysis based on support vector machine and simulated annealing[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(22)：4 134-4 138.(in Chinese))
[19]	张勇慧，魏倩，盛谦，等. 大岗山水电站地下厂房区三维地应力场反演分析[J]. 岩土力学，2011，32(5)：1 523-1 530.(ZHANG Yonghui，WEI Qian，SHENG Qian，et al. Three dimensional back analysis for geostress of underground caverns of Dagangshan hydropower station[J]. Rock and Soil Mechanics，2011，32(5)：1 523-1 530.(in Chinese))