蔡宝卷;沙友德;
CAI Bao-juan,SHA You-de(Civil Engineering Ltd.,Co.of the Second Bureau of Construction and Engineering of China,Beijing 101101,China)

• 1:中建二局土木工程有限公司

摘要(Abstract)：

蓝田至商州高速路C2标崖底连拱隧道,穿越地层复杂,施工要求高。为保证工期和施工质量、安全,针对岩体特征及浅埋偏压段的实际,进行合理的超前支护,采用隧道光面爆破技术,经现场试验,对连拱隧道开挖爆破参数、装药结构和起爆网路进行优化设计;对钻爆、临时支护、量测的施工和管理,提出了合理的质量要求和安全措施,进行绿色施工,达到安全环保、改善爆破效果、降低施工成本的目的。
Passing through very complicated geological stratum,the double ranged arch tunnel under cliff of C2 Section of Lanshang expressway required high quality construction.For the consideration of project schedule,construction quality and safety,reasonable over-front protection and smooth blasting technique were adopted to meet the physical condition of rock mass characteristics and the shallow burying pressed section.After tests in situ,the tunnel excavation parameters,explosive charging structure and ignition network were optimized,which were accompanied by bringing forward reasonable requirements and safety measures for construction and management of drilling blasting,temporary support and measurement responsible for green construction so as to reach the purposes of safety and environment friendly,blasting effect improvement and cost reduction.

关键词(KeyWords)： 连拱隧道;超前支护;光面爆破;绿色施工;环保
Double ranged arch tunnel;Over-front protection;Smooth blasting;Green construction;Environment friendly

Abstract:

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基金项目(Foundation):

作者(Authors): 蔡宝卷;沙友德;
CAI Bao-juan,SHA You-de(Civil Engineering Ltd.,Co.of the Second Bureau of Construction and Engineering of China,Beijing 101101,China)

参考文献(References)：

• (1)刘殿中.工程爆破实用手册[M].北京.冶金工业出版社,1999.
• (2)怀平生.以色列卡迈尔(Carmel)隧道控制爆破设计[J].工程爆破,2007(3):22-25.
• (3)周春锋.光面爆破在松软破碎岩体中的应用[J].工程爆破,2000(2):70-73.