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| Development and application of ultra high pressure 3D loading model test system with intelligent numerical control function |
| ZHANG Qiangyong1，XIANG Wen2，ZHANG Yue1，WANG Chao1，LIU Chuanchen1 |
(1. Geotechnical Engineering Research Center，Shandong University，Jinan，Shandong 250061，China；
2. School of Civil Engineering，Shandong University，Jinan，Shandong 250061，China) |
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Abstract With the world's increasing demand for mineral resources and energy，the mining activities of human being have entered deep underground. In order to reveal the nonlinear deformation properties and strength failure mechanism of ultra deep cavern under high ground stress，a 3D ultra high pressure loading model test system with intelligent control function was developed by using the numerical control and photoelectric conversion technology. The model test system is composed of a counter-force frame，an ultra high pressure loading system，an intelligent hydraulic control system，an automatic collection system of model displacement and a high definition multi probe peep system. The rated output of the model system is 63 MPa，the maximum load is 45 000 kN and the loading accuracy is 0.05 MPa. The true 3D non-uniform gradient loading at super high pressure is realized with the numerical control technology. The automatic monitoring of the model displacement is realized with the photoelectric conversion technology and the precision of displacement measurement is 0.001 mm. The failure state of the model cavern is observed through the multi probe system of high definition. 3D geomechanical model test of failure of ultra deep oil karst cave in Tahe Oilfield in Xinjiang was carried out by utilizing the model test system. The failure mode，the nonlinear deformation characteristics and the stress variation of the karst cave in the process of formation were effectively revealed. The results of the model test has verified the reliability of the model test system.
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[1] 谢和平，高 峰，鞠 杨. 深部岩体力学研究与探索[J]. 岩石力学与工程学报，2015，34(11)：2 161–2 178.(XIE Heping，GAO Feng，JU Yang. Research and development of rock mechanics in deep ground engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(11)：2 161–2 178.(in Chinese))
[2] DENG J Q，YANG Q，LIU Y R，et al. Stability evaluation and failure analysis of rock salt gas storage caverns based on deformation reinforcement theory[J]. Computers and Geotechnics，2015，68：147–160.
[3] REVA V N. Stability criteria of underground workings under zonal disintegration of rocks[J]. Journal of Mining Science，2002，38(1)：31–34.
[4] SELLERS E J，KLERCK P. Modeling of the effect of discontinuities on the extent of the fracture zone surrounding deep tunnels[J]. Tunneling and Underground Space Technology，2000，15(4)：463–469.
[5] GUZEV M A，PAROSHIN A A. Non-euclidean model of the zonal disintegration of rocks around an underground working[J]. Journal of Applied Mechanics and Technical Physics，2001，42(1)：131–139.
[6] 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，(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，(1)：1–5.(in Chinese))
[7] 何满潮，谢和平，彭苏萍. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803–2 813.(HE Manchao，XIE Heping，PENG Suping. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803–2 813.(in Chinese))
[8] 李仲奎，卢达溶，中山元，等. 三维模型试验新技术及其在大型地下洞群研究中的应用[J]. 岩石力学与工程学报，2003，22(9)：1 430–1 436.(LI Zhongkui，LU Darong，ZHONG Shanyuan，et al. Development and application of new technology for 3D geomechanical model test of large underground powerhouses[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(9)：1 430–1 436.(in Chinese))
[9] 陈安敏，顾金才，沈 俊，等. 地质力学模型试验技术应用研究[J]. 岩石力学与工程学报，2004，23(22)：3 785–3 789.(CHEN Anmin， GU Jincai，SHEN Jun，et al. Application study of geomechanical model experiment techniques[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(22)：3 785–3 789.(in Chinese))
[10] 姜耀东，刘文岗，赵毅鑫. 一种新型真三轴巷道模型试验台的研制[J]. 岩石力学与工程学报，2004，23(21)：3 727–3 731.(JIANG Yaodong，LIU Wengang，ZHAO Yixin. Design and development of a new type of triaxial system for roadway model test[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(21)：3 727–3 731.(in Chinese))
[11] 张强勇，李术才，尤春安，等. 新型组合式三维地质力学模型试验台架装置的研制及应用[J]. 岩石力学与工程学报，2007，26(1)：143–148.(ZHANG Qiangyong，LI Shucai，YOU Chun?an，et al. Development and application of new type combination 3D geo- mechanical model test rack apparatus[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：143–148.(in Chinese))
[12] 朱维申，李 勇，张 磊，等. 高地应力条件下洞群稳定性的地质力学模型试验研究[J]. 岩石力学与工程学报，2008，27(7)：1 308– 1 314.(ZHU Weishen，LI Yong，ZHANG Lei，et al. Geomechanical model test on stability of cavern group under high geostress[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)：1 308–1 314.(in Chinese))
[13] 康玉柱. 中国古生代碳酸盐岩古岩溶储集特征与油气分布[J]. 天然气工业，2008，(6)：1–12.(KANG Yuzhu. Characteristics and distribution laws of paleokarst hydrocarbon reservoirs in palaeozoic carbonate formations in China[J]. Academician of Chinese Academy of Engineering，2008，(6)：1–12.(in Chinese))
[14] 李 阳. 塔河油田碳酸盐岩缝洞型油藏开发理论及方法[J]. 石油学报，2013，34(1)：115–121.(LI Yang. The theory and method for development of carbonate fracture-cavity reservoirs in Tahe oilfield[J]. Acta Petrolei Sinica，2013，34(1)：115–121.(in Chinese))
[15] 张强勇，李术才，郭小红，等. 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，et al. 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))
[16] 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，2012：64–79.(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，2012：64–79.(in Chinese)) |
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2016, Vol. 35 
