工程爆破

2001, (04) 51-55

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已爆堆积体与未爆岩体交接处的药包布置
LAYOUT OF CHARGES IN THE PLACES CONNECTED BROKEN PILES WITH UNBLASTED ROCK MASS

薛培兴,史雅语,刘文泉
XUE Pei xing 1,SHI Ya yu 2,LIU Wen quan 1 (1 Zhejiang Division,Beijing Vibroflotation Engineering Co Ltd , Hangzhou 310002,China; 2 China Academy of Railway Science,Beijing 100081,China)

摘要(Abstract):

介绍了程高山工程中五区、七区和八区硐室爆破与其相邻硐室爆破堆积体交接处的药包布置方法。利用这种布置技术 ,成功地改善了已爆但效果较差的三区和六区的开挖条件。实践证明 ,利用 0 6 7的经验折算系数将松碴的厚度折算成未爆山体的最小抵抗线值是可行的
In this paper,a technology for layout of charged chambers in blasting zones No5,7 and 8 adjacent to the broken piles in Chenggaoshan project is introduced By use of this technology,the excavating conditions of poorly broken piles in blasting zones No 3 and 6 have been successfully improved The practice has shown that it is feasible to convert the thickness of loosened rock mass into the burden of unblasted rock mass using an empiric conversion coefficient of 0 67

关键词(KeyWords): 硐室爆破;松碴;折算系数;条形药包
Chamber blasting; Broken pile; Conversion coefficient; Linear charge

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作者(Author): 薛培兴,史雅语,刘文泉
XUE Pei xing 1,SHI Ya yu 2,LIU Wen quan 1 (1 Zhejiang Division,Beijing Vibroflotation Engineering Co Ltd , Hangzhou 310002,China; 2 China Academy of Railway Science,Beijing 100081,China)

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