预裂松动爆破在既有线扩堑中的应用  

Application of Pre-splitting Loose Blasting in Existent Line's Extending Trench

作　　者：邱凌 

机构地区：[1]中铁十一局集团第三工程有限公司,湖北十堰442012

出　　处：《西部探矿工程》2004年第12期122-123,共2页West-China Exploration Engineering

摘　　要：通过施工实例介绍在既有线扩堑施工任务中成功运用预裂松动爆破的施工方法和爆破参数的计算方式 ,通过该爆破方案既确保了行车安全 。The construction method and calculating mode of blasting parameters for pre-splitting loose blasting are applied successfully in the extending trench construction task of existent line through the introduction of construction example. The application of this blasting plan both ensures safety in driving and meets the requirements of construction and design.

关 键 词：预裂 爆破 扩堑 应用 参数选择 飞石 

分 类 号：U455.41[建筑科学—桥梁与隧道工程]