›› 2006, Vol. 27 ›› Issue (S1): 222-226.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical simulation and supporting measure of high slope excavation on left abutment of a large hydropower station

XUE Yi-guo1, 2, CHEN Jian-ping2, HUANG Run-qiu3, YAN Ming3   

  1. 1. The Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China; 2. College of Construction Engineering, Jinlin University, Changchun 130026, China; 3. Chengdu University of Science and Technology, Chengdu 610059, China
  • Received:2006-06-28 Published:2006-12-15

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Abstract: A 3D numerical simulation of high slope excavation in left abutment of a large hydropower station is carried out with a program 3D-?. The result of analysis shows that the tensile stress zone exists at top of slope surface after excavation; the rock mass deformation in the horizontal direction and vertical direction appears at the bottom of spandrel groove and the cable-crane platform; excavation of spandrel groove leads to unloading relaxation and deterioration of surface rock mass in the mountain No.5; and the large block above the fault f42-9 will be a potential threat; all the above will be the focal point of slope support at excavating step by step. According to analysis above, supporting measures after excavation are carried out including combination supporting measures of prestressed cable and drain to cut the water. The result shows that the supporting measure is effective, which meets the needs of project design.

Key words: hydropower station, slope excavation, numerical simulation, supporting

CLC Number: 

  • TV 223. 3+4
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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