›› 2006, Vol. 27 ›› Issue (S1): 1045-1049.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on blasting excavation techniques for rock ditching of natural gas ducts

ZHANG Xian-tang1, 2, GAO Wen-le1, ZHANG Jin-quan1, ZHOU Hong-min1   

  1. 1. Shandong University of Science and Technology, Qingdao 266510, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
  • Received:2006-06-28 Published:2006-12-15

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Abstract: According to the characteristic of Liaocheng-Tai’an natural gas duct excavation engineering of West-East natural gas transmission project, the suitable pattern of hole disposal, the blasting parameters, the structure of stage charge, the reasonable firing method and the detonation sequence of the blasting excavation are discussed. The principle of ditching blasting and the scheme of blasting construction are summarized based on the above analysis. The techniques of millisecond blasting and safety measures of reducing vibration and controlling blasting f1ying rock are put forward. So the security of communications cables and the surrounding facilities are guaranteed; and ideal achievement is obtained. Favorable conditions are created for the smooth progress of West-East natural gas transmission project.

Key words: blasting engineering, West-East natural gas transmission project, ditching excavating, millisecond blasting, blasting vibration

CLC Number: 

  • TD 235
  • 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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