某核电工程地基岩体变形参数取值方法研究

doi:10.13722/j.cnki.jrme.2017.1191

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Abstract In order to study the non-linear deformation features of bedrock of nuclear power project and its effect on determination of deformation parameters，the indoor uniaxial compression test of large block from a nuclear power project was done under fine control，and the nonlinearity of its deformation features were revealed. The six different methods of getting deformation parameters of bedrock were contrasted，the results revealed that the deformation parameters got by standard indoor compression test and borehole elastic modulus test will be higher because of the higher test stress level. The deformation parameters got by acoustic wave velocity analogy method or rock mass quality classification estimation method are matched with actual stress level in water-power engineering，which will occur error when directly used in nuclear power plants engineering. The in-situ plate load test and back-analyzing method based on monitoring datum are closer to the real value when getting deformation parameters of bedrock of nuclear power plants. It?s suggested that indoor compression test and borehole elastic modulus test should be improved，and the information database including in-situ test，detection and monitor should be formed in the nuclear power project. It is also necessary to refine the in-situ test and the monitoring work when facing with important project or complex foundation and attach importance to the limitation of the test stress level when drawing specifications for the nuclear power industry.

Key words： rock mechanics nuclear power plant bedrock ；non-linearity of deformation property test method deformation parameter determination

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	Articles by authors
	LI Jin1
	DU Jianbin2
	ZHANG Yihu3
	ZHOU Huoming3
	PANG Zhengjiang3

Cite this article:

LI Jin1,DU Jianbin2,ZHANG Yihu3, et al. Study on the method for determining deformation parameters of foundation rock mass in a nuclear power project[J]. , 2019, 38(S1): 2988-2996.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.1191 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/IS1/2988

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