高速公路既有线扩堑深孔水压爆破技术的应用  

Application of Deep-hole Hydraulic Blasting Technology in Cutting Slope Expansion of Existing Expressway Lines

作　　者：黄梦昌 文昌盛 周富华 牛红梅 HUANG Meng-chang WEN Chang-sheng ZHOU Fu-hua NIU Hong-mei(Guangxi Transportation Research Institute, Nanning, Guangxi, 53000)

机构地区：[1]广西交通科学研究院,广西南宁530007

出　　处：《西部交通科技》2016年第9期1-4,共4页Western China Communications Science & Technology

基　　金：2014年度广西交通运输科技项目"广西高速公路既有线扩堑石方控制爆破安全技术研究"(桂交科教发〔2014〕48号)

摘　　要：高速公路改扩建工程扩堑石方爆破需对爆破振动、爆破飞石、滚石进行严格控制,保证既有公路正常通行,施工难度较大。文章依托桂海高速公路改扩建工程,采用了高陡边坡无预留隔墙、无钢管排架防护的深孔水压爆破技术,实现了爆破的岩石松动破碎而不飞散,确保了既有线公路的行车安全及交通通畅。The cutting-slope expansion stonework blasting of expressway reconstruction and expansion project requires the strict control for blasting vibration, blasting flying-stone, and roiling rock ,to ensure the normal traffic of existing highways,thus it has large construction difficulty.Relying on Guihai Expressway reconstruction and expansion project,this article adopted the deep-hole hydraulic blasting technology without reserved partition wall and without steel-pipe bent protection at high and steep slopes, it realized that the blasting rock is broken and loose without scattering, and ensured the safe and smooth traffic of existing expressway lines.

关 键 词：高速公路既有线 改扩建工程 扩堑 深孔水压爆破 交通通畅 

分 类 号：U415.6[交通运输工程—道路与铁道工程]