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| RELATION BETWEEN DEVELOPMENT DEGREE OF JOINTS AND DEFORMATION PARAMETERS OF ROCKMASS |
| Wang Yi1，Nie Dexin1，Zhang Jingke2，Lei Qiyun2 |
| (1Institute of Engineering Geology，Chengdu University of Technology， Chengdu 610059 China) (2Resource and Environment College，Lanzhou University， Lanzhou 730000 China) |
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Abstract The development degree of joints in rockmass is a significant factor affecting rockmass structure types，rockmass quality and comprehensive utilization of engineering rockmass，and it is important to estimate quantitatively the development degree of joints in rockmass. After introducing the classification of rockmass joints，the joint number per unit area which is equivalent to the joint number on the cave wall per 5 m is chosen as quantification index of the development degree of joints in rockmass. Then，in a hydropower station which will be built on Yellow River，the joint number per unit area is analyzed carefully by means of mathematical statistics，and then the relation between development degree of joints and deformation parameter of rockmass is studied. The presented study provides a theory basis for rockmass evaluation.
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Received: 03 March 2003
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1 符文熹. 岩体变形参数渐变取值模型及工程应用[J]. 工程地质学报，2002，10(2)：198～203
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2003, Vol. 22 
