›› 2009, Vol. 30 ›› Issue (4): 1063-1067.

• Geotechnical Engineering • Previous Articles     Next Articles

Influence research of coal seam mining and pole foundation stability of 1 000 kV UHV transmission line

ZHANG Yong1，GAO Wen-long2，ZHAO Yun-yun1   

  1. 1. Hebei University of Engineering, Handan 056021, China；2. North China Power Engineering (Beijing ) CO., LTD, Beijing 100011, China
  • Received:2007-12-24 Online:2009-04-10 Published:2011-01-30

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Abstract:

The 1 000 kV UHV transmission line of Southeast Shanxi to Nanyang passes through the mined out space and layout area of Shanxi coalfield. For the sake of appraise the influence of mining of coalfield layout area to foundation stability of transmission tower, according to the data that collect in locale, by using FLAC3D numerical method, mining simulation of the coal seam #3 under N165 tower of 1 000 kV UHV transmission line has been done; the result is that to mine coal seam #3 will bring influence on the stability of foundation of transmission tower; the most subsidence of the ground is 3.7 m and the most incline of the transmission tower foundation along the power line is 9.2 ‰. Without taking anti-deformation measures, the incline of tower foundation will endanger the stability of 1 000 kV UHV transmission line.

Key words: coal seam mining, 1 000 kV UHV, transmission tower, stability of foundation, FLAC3D

CLC Number: 

  • TO 823
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