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Yang Wendong, Zhang Qiangyong, Chen Fang, Li Shucai, Li Wengang, Wang Jianhong, He Ruping, Zeng Jiquan. RHEOLOGICAL PARAMETERS INVERSION BY THEORETICAL ANALYSIS OF COMPRESSIVE CREEP TESTS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, (3): 638-642. DOI: 10.6052/0459-1879-2012-3-20120322
Citation: Yang Wendong, Zhang Qiangyong, Chen Fang, Li Shucai, Li Wengang, Wang Jianhong, He Ruping, Zeng Jiquan. RHEOLOGICAL PARAMETERS INVERSION BY THEORETICAL ANALYSIS OF COMPRESSIVE CREEP TESTS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, (3): 638-642. DOI: 10.6052/0459-1879-2012-3-20120322
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RHEOLOGICAL PARAMETERS INVERSION BY THEORETICAL ANALYSIS OF COMPRESSIVE CREEP TESTS

  • 1.

    College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China

  • 2. Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China

  • 3. Chengdu Hydroelectric Investigation & Design Institute, China Hydropower Engineering Consulting Group Corporation, Chengdu 610072, China

Funds: The project was supported by the National Basic Research Program of China (2009CB724607), the National Natural Science Foundation of China (41172268) and the Fundamental Research Funds for the Central Universities (11CX04051A)
  • Received Date: November 01, 2011
  • Revised Date: February 09, 2012
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    • Abstract
  • Long-term stability of the dam foundation is an important guarantee for the safety of dam operations, and the weak interlayer in the rock mass of dam foundation is an important factor which affects the stability and deformation. In order to study the deformation mechanism of the weak interlayer in diabase dikes under long-term load at Dagangshan hydropower dam foundation, in-situ large-scale compressive creep test using circular rigid bearing plate is carried out which is perpendicular to the weak interlayer in test cavern of dam slope. The five-parameter generalized Kelvin model is identified to describe the creep property of weak interlayer, which avoids the defects of three-parameter generalized Kelvin model that has the problem of unwanted rapid convergence. Based on the Boussinesq problem in elastic mechanics, the visco-elastic deformation formula of five-parameter generalized Kelvin model for rock mass under rigid bearing plate is derived for the first time through Laplace transform and inverse transform, and the rheological parameters are inversed.
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    • References (10)
  • 孙 钧. 岩石流变力学及其工程应用研究若干进展. 岩石力学与工程学报, 2007, 26(6): 1081-1106 (Sun Jun. Rock rheological mechanics and its advance in engineering application. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(6): 1081-1106 (in Chinese))
    Malan DF. Time-dependent behaviour of deep level tabular excavations in hard rock. Rock Mechanics and Rock Engineering, 1999, 32(2): 123-155  
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    李云鹏,王芝银,丁秀丽. 流变载荷试验曲线的模型识别及其应用. 石油大学学报, 2005, 29(2): 73-77 (Li Yunpeng, Wang Zhiyin, Ding Xiuli. Model identification for rheological load test curve and its application. Journal of the University of Petroleum, 2005, 29(2): 73-77 (in Chinese))
    徐平, 丁秀丽, 全海等. 溪洛渡水电站坝址区岩体蠕变特性试验研究. 岩 土力学, 2003, 24(增): 220-226 (Xu Ping, Ding Xiuli, Quan Hai, et al. Testing study on creep behavior of rock mass at Xiluodu Dam site. Rock and Soil Mechanics, 2003, 24 (Supp): 220-226 (in Chinese))
    杨文东,张强勇,张建国等. 刚性承压板下深部岩体压缩蠕变参数反演.岩土 力学, 2009, 30(3): 762-768 (Yang Wendong, Zhang Qiangyong, Zhang Jianguo, et al. Inversion of compression creep parameters of deep rock under rigid bearing plate. Rock and Soil Mechanics, 2009, 30(3): 762-768 (in Chinese))
    熊诗湖,周火明,钟作武等. 岩体载荷蠕变试验方法研究.岩石力学与工程学 报, 2009, 28(10): 2121-2127 (Xiong Shihu, Zhou Huoming, Zhong Zuowu, et al. Study of methodology of plate-loading creep test of rock mass. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(10): 2121-2127 (in Chinese))
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