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2012 (Vol. 4, Issue: 22)
Article Information:

Study of Block Stability of Surrounding Rock Mass of Main Transformer Chamber Based on VATS Program

Zhongchang Wang and Huijun Wu
Corresponding Author:  Zhongchang Wang 

Key words:  Block , key discontinuous face, main transformer chamber, the distributing characteristic, vector analysis for tunnel stability, ,
Vol. 4 , (22): 4835-4839
Submitted Accepted Published
May 08, 2012 June 08, 2012 November 15, 2012
Abstract:

The fracture of rock mass for main transformer chamber in HuangGou hydropower station is very developed. The blocks slide along the discontinuous face or free face with the excavation of cavern. It leads to the failure of normal construction. In the study, according to geology of disclosed discontinuous face in detecting cavern and local three-dimensional coordinate of underground caverns, the vector analysis program for tunnel stability VATS is compiled by using the method of vector analysis of the block theory which is applicable to analyze the discontinuous rock mass and numerical software MATLAB. The occurrence of joints, the coordinate of measuring point, the radius and vertical wall height of underground caverns and other relevant engineering datum is required to input the program. The combination of discontinuous face, boundary condition, geometric parameter, the mode of failure and stability factor of existent unstable blocks is obtained. The geometry distributing characteristic of block and key discontinuous faces in different position is figured by the AUTOCAD software. The guidance for construction of underground caverns is provided.
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  Cite this Reference:
Zhongchang Wang and Huijun Wu, 2012. Study of Block Stability of Surrounding Rock Mass of Main Transformer Chamber Based on VATS Program.  Research Journal of Applied Sciences, Engineering and Technology, 4(22): 4835-4839.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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