既有电气化铁路无侧向防护扩堑控制爆破关键技术  

Key Technology for A-Class Extended Cutting Controlled Blasting of Existing Electrified Railways without Protection from Side Directions

作　　者：王永顺[1] 

机构地区：[1]中铁二十局集团有限公司,西安710016

出　　处：《铁道建筑技术》2008年第4期99-102,共4页Railway Construction Technology

摘　　要：介绍了预留石方隔墙和利用既有线护坡代替靠壁式防护排架防护而进行复线电气化铁路复线A级石方控制爆破的关键技术——薄层岩体预裂爆破和隔墙定向爆破,提供了A级石方扩堑爆破新方法。This article introduces key technologies of reserving rock partition wall and existing railway slope protection replacing wall type shelving protection, for carrying out the A-class rock controlled blasting in construction of electrified railway double track-thin layer rock mass pre-splitting demolition and partition wall directional blasting construction technique. It provides a new method for A-class rock expanded cutting blasting.

关 键 词：铁路扩堑爆破 薄层岩体预裂爆破 隔墙定向爆破 

分 类 号：U416.113[交通运输工程—道路与铁道工程]