宁远思;闫春岭;崔振东;
NING Yuan-si1,YAN Chun-ling2,CUI Zhen-dong3 (1.The 15th Engineering Bureau of China Railway Group,Jiaozuo 454003,Henan,China;2.Faculty of Nuclear Resources and Safety Engineering,University of South China,Hengyang 421001,Hunan,China;3.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China)

• 1:中铁十五局集团
• 2:南华大学核资源与安全工程学院
• 3:同济大学地下建筑与工程系 河南焦作454003
• 4:湖南衡阳421001

摘要(Abstract)：

在新奥法施工中,传统的光面爆破直接用纯炮泥填塞炮孔,其炸药能量有效利用率不高。本文介绍了铁山坪隧道掘进工程中,对光面爆破施工进行了改进,采用了水-土复合填塞炮孔的装药结构,并适当减少了炸药量,使隧道月平均进尺125.8m、最高时达146.5m,施工质量达到优良标准,并取得了良好的经济效益。
In New Austrian Tunneling Method construction,the traditional smooth blasting for tunnels uses pure clay to stem blast holes,which results in relatively low efficient availability of explosives.This paper introduced the improvements of smooth blasting during Tieshanping tunnel construction,in terms of its adoption of loading structure with water-clay composite for stemming and the reduction of quantity of explosives.The improvement raised the average speed of advancement to 125.8 meters per month with the highest value 146.5 meters.The tunnel achieved excellent standard and gained good economic results.

关键词(KeyWords)： 隧道掘进;光面爆破;炮孔填塞;装药结构
Tunnel excavation;Smooth blasting;Blasthole stemming;Charging structure

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 宁远思;闫春岭;崔振东;
NING Yuan-si1,YAN Chun-ling2,CUI Zhen-dong3 (1.The 15th Engineering Bureau of China Railway Group,Jiaozuo 454003,Henan,China;2.Faculty of Nuclear Resources and Safety Engineering,University of South China,Hengyang 421001,Hunan,China;3.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China)

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