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| Keywords | |
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delivery tunnel |
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slope |
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block theory |
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key block body |
| Authors | |
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YANG Shu-Cai-1 |
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WANG Chang-Ming-1 |
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MA Dong-He-1 |
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CHEN Long-2 |
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LIU Zhi-3 |
| PubMed | |
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Article by Yang, S. C. 1 |
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Article by Wang, C. M. 1 |
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Article by Ma, D. H. 1 |
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Article by Chen, L. 2 |
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Article by Liu, Z. 3 |
Block recognition of mountain slope in delivery tunnel inlet side for a hydropower station
YANG Shu-Cai-1, WANG Chang-Ming-1, MA Dong-He-1, CHEN Long-2, LIU Zhi-3
1. College of Construction Engineering��Jilin University��Changchun 130021��China; 2. China Petroleum Pipeline Engineering Co�� ��Langfang 065000��Hebei��China; 3. No. 3 Exploration Institute of Geological Mineral��Geological Prospecting Bureau of Shandong�� Yantai 264004��Shandong��China
The slope rocks of delivery tunnel inlet side of a hydropower station are middle-thin layered limestone�� in which there are mainly three faults��one dyke and four groups of superior joints�� The characters seriously effect the stability of this mountain slope�� According to the distribution of structural surfaces��the authors use block body theory to search of the key block bodies in the slope�� The non-spatial fracture cones in the slope were find out by stereographic projection law�� Combined them with free surface to get the whole movable block bodies��the authors calculated the JP number and the net sliding force under different movable forms to find out the key block bodies�� The result indicates that there are 4 key block bodies in the slope of delivery tunnel inlet side of this hydropower station��with the JP numbers 00010111��00110111��10110111 and 10111011��which proves the base for further examination of the slope stability��