杨玉银;陈长贵;黄浩;黄勇;刘志辉;张健鹏;张永强;廖志华;
YANG Yu-yin;CHEN Chang-gui;HUANG Hao;HUANG Yong;LIU Zhi-hui;ZHANG Jian-peng;ZHANG Yong-qiang;LIAO Zhi-hua;Sinohydro Bureau 5 Co.,Ltd.;

• 1:中国水利水电第五工程局有限公司

摘要(Abstract)：

为了解决乌干达卡鲁玛尾水隧洞光面爆破施工中,无专用光爆细药卷(φ20²2mm),且竹片难于买到,无法绑扎光爆药串等问题,在8#、9#、10#支洞及主洞开挖爆破施工中做了一系列光面爆破装药结构改进实验。采用(φ2522mm),且竹片难于买到,无法绑扎光爆药串等问题,在8#、9#、10#支洞及主洞开挖爆破施工中做了一系列光面爆破装药结构改进实验。采用(φ25³2mm)常规药卷,在其未与导爆索绑扎的条件下,导爆索成功起爆了光爆孔内按设计线装药密度装入的间隔装药,且取得了理想的光爆效果。实验及应用情况表明:在φ42mm光爆孔内,导爆索与一定间距(>50cm)的间隔装药在孔内自由分布、未绑扎的条件下,导爆索完全能够起爆孔内的间隔装药,这就简化了传统的光爆药串加工工艺,改变了隧洞开挖中传统的光爆孔内装药结构。
There was no special thin cartridge explosives(φ20 32mm)常规药卷,在其未与导爆索绑扎的条件下,导爆索成功起爆了光爆孔内按设计线装药密度装入的间隔装药,且取得了理想的光爆效果。实验及应用情况表明:在φ42mm光爆孔内,导爆索与一定间距(>50cm)的间隔装药在孔内自由分布、未绑扎的条件下,导爆索完全能够起爆孔内的间隔装药,这就简化了传统的光爆药串加工工艺,改变了隧洞开挖中传统的光爆孔内装药结构。
There was no special thin cartridge explosives(φ20 ²2mm),bamboo was difficult to buy and the cartridge explosives were not binding to detonating fuse during the Adit-8,Adit-9,Adit-10 tunnel construction in Uganda Karuma HPP TRT Project.In order to solve the issues,a series of improvement experiments of smooth blasting charging structure were conducted.The normal cartridge explosives(φ2522mm),bamboo was difficult to buy and the cartridge explosives were not binding to detonating fuse during the Adit-8,Adit-9,Adit-10 tunnel construction in Uganda Karuma HPP TRT Project.In order to solve the issues,a series of improvement experiments of smooth blasting charging structure were conducted.The normal cartridge explosives(φ25³2mm)were used without binding to detonating fuse,but deck charging designed according to line charge concentration was successfully detonated by detonating fuse in the smooth blasthole.The ideal smooth blasting effect was achieved.The experiment and application indicated that deck charging in a certain distance(>50cm)with detonating fuse in φ42mm smooth blasthole could be detonated by detonating fuse,even cartridge explosives were arranged randomly and not binding to detonating fuse.The traditional cartridge explosive processing method was simplified and the traditional charging structure of smooth blasting in tunnel excavation was changed.

关键词(KeyWords)： 隧洞;开挖;光面爆破;装药结构;间隔装药;导爆索
Tunnel;Excavation;Smooth blasting;Charging structure;Deck charging;Detonating fuse

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 杨玉银;陈长贵;黄浩;黄勇;刘志辉;张健鹏;张永强;廖志华;
YANG Yu-yin;CHEN Chang-gui;HUANG Hao;HUANG Yong;LIU Zhi-hui;ZHANG Jian-peng;ZHANG Yong-qiang;LIAO Zhi-hua;Sinohydro Bureau 5 Co.,Ltd.;

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