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.岩体的构造层次及其成因.pdf

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.岩体的构造层次及其成因

24 16 Vol.24 No.16 2005 8 Chinese Journal of Rock Mechanics and Engineering Aug .2005 1 2 2 1 (1. 100044 2. 210007) 45 2 TU 435 TU 42 A 1000 6915(2005)16 2838 09 STRUCTURAL HIERARCHY OF ROCK MASSIF AND MECHANISM OF ITS FORMATION 1 2 2 1 QI Cheng-zhi QIAN Qi-hu WANG Ming-yang DONG Jun (1. Department of Civil Engineering Beijing Institute of Civil Engineering and Architecture Beijing100044China 2. PLA University of Science and Technology Nanjing210007 China) Abstract Rock massif possesses complex structural hierarchy. Such a structural hierarchy involves very wide range of scale levels from microscopic scale level to macroscopic scale level. But until now systematic study on the mechanism of the formation of this kind of structural hierarchy does not exist. Based on the available geomechanical achievements and physical theoriesthe mechanism for formation of the structural hierarchy of rock massif is studied systematically. It shows that the formation of structural hierarchy is caused by the initial stage of formation of rock massif and the successive tectonic motion processes. In the initial stage of formation of rock massif because of nonequilibrium nature of the processes and the exchanges of energy with the environment the self-organization process and dissipative structure arise and the self-similar fractal structures are formulated. In the view of tectonic the earth′s lithosphere is in nonequilibrium state because of