入岩控制爆破技术在铁路桥梁挖孔桩中的应用

摘要

介绍了人工挖孔桩基础由于其施工方法简单,施工效率高,在铁路桥梁施工中应用较多,而入岩控制爆破技术是人工挖孔桩基础的关键技术,通过对入岩控制爆破方案的设计与应用,取得了安全性高、进度快的施工效果,产生了良好的社会和经济效益。%Introduction the technology of artificial digging pile foundation had the advantages of construction method is simple and the advantages of high efficiency,so it was widely used in railway bridge construction,the technology of controlled blasting into the rock was critical technology in artificial digging pile foundation.Through the design and application of controlled blasting into the rock program,had made safe,fast pace of construction effects,resulting in a good social and economic benefits.