顾毅成;刘宏刚;刘旺锋;赵强;
GU Yi-cheng~1,LIU Hong-gang~2,LIU Wang-feng~3,ZHAO Qiang~3(1.China Academy of Railway Sciences,Beijing,100081,China;2.China Railway the Third Bureau Group Co,Taiyuan 030001,China;3.China Railway the 20th Bureau Group Co,Xi'an 710000,China)

• 1:铁道科学研究院
• 2:中铁3局集团公司
• 3:中铁20局集团公司西北公司
• 4:中铁20局集团公司西北公司 北京100081

摘要(Abstract)：

针对西柏坡电厂三期铁路专用线与朔黄铁路并行段路堑拓宽石方爆破工程中出现扩堑岩体厚度仅为5¹0m的情况,为实施边坡预裂爆破,通过利文斯顿爆破漏斗理论及爆破对岩石破坏范围的安全论证,提出了采用分台阶、毫秒延时预裂爆破、控制一段起爆最大药量等薄层岩体预裂爆破的设计原则,介绍了该工程所采用的设计方案与主要设计参数以及取得的爆破效果,可供类似工程参考。
Aiming at the situation that the terrane is only 5～10 meters thick in the rock blasting project of cutting expansion in the third construction stage of Xi-Bai-Po power plant railway which parallels to Shuo-Huang railway,the design principles of employing bench-millisecond-presplitting blasting to controlling the maximum charging in first ignition was put forward for the implementation of engineering after the discussion on the safety based on the Crater Theory by Livingston C W and the scope of damage to rock caused the blasting.The present paper introduced the design scheme,main parameters and results of this blasting,which can be referenced by similar engineering.

关键词(KeyWords)： 石方开挖;薄层岩体;预裂爆破;爆破安全
Rock excavation;Thin terrane;Presplitting blasting;Blasting safety

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 顾毅成;刘宏刚;刘旺锋;赵强;
GU Yi-cheng~1,LIU Hong-gang~2,LIU Wang-feng~3,ZHAO Qiang~3(1.China Academy of Railway Sciences,Beijing,100081,China;2.China Railway the Third Bureau Group Co,Taiyuan 030001,China;3.China Railway the 20th Bureau Group Co,Xi'an 710000,China)

参考文献(References)：

• (1)张志毅,王中黔.交通土建工程爆破工程师手册[M].北京:人民交通出版社,2002.
• (2)张正宇.现代水利水电工程爆破[M].北京:中国水利水电出版社,2003.
• (3)中华人民共和国标准.爆破安全规程(GB6722-2003)[S].北京:中国标准出版社,2004.