分台阶爆破施工技术在跨江大桥边坡爆破施工中的应用

以某跨江大桥边坡爆破施工为工程背景讨论分台阶爆破技术在跨江大桥边坡爆破中的应用,介绍工程主要内容和水文地质条件,并针对边坡的特点进行分析,描述技术参数设计和施工方法。爆破设计主要包括浅孔台阶爆破和深孔爆破2种方式,阐述如何根据地质条件选择不同的开挖方式,以及如何控制爆破振动和飞石。总结分台阶爆破技术的应用效果,以期为类似地质条件下的跨江大桥边坡爆破施工建设提供参考。

Taking the slope blasting construction of a river-crossing bridge as the engineering background,the application of step-by-step blasting technology in the slope blasting of a river-crossing bridge is discussed,the main engineering contents and hydrogeological conditions are introduced,and the characteristics of the slope are analyzed.the design of technical parameters and construction methods are described.Blasting design mainly includes shallow-hole bench blasting and deep-hole blasting.This paper expounds how to choose different excavation methods according to geological conditions and how to control blasting vibration and flying rock.The application effect of step blasting technology is summarized in order to provide reference for the construction of slope blasting of river-crossing bridge under similar geological conditions.