综合爆破技术在峡江水利枢纽柘塘防护工程渠道石方开挖中的应用

Application of comprehensive blasting technology in channel excavation in Zhetang protective engineering in Xiajiang water junction

本文以江西省峡江水利枢纽柘塘防护工程渠道石方爆破开挖为例,将渠道主体部分分层分段浅孔松动控制爆破结合边坡部分预裂爆破技术应用于本工程中,根据地质情况及邻近建筑物条件,合理选择了爆破参数,制定了有针对性的施工方案.实践表明,采取主体部分分层分段浅孔松动控制爆破结合边坡部分预裂爆破技术,可以有效减小爆破施工对周围环境的影响和破坏,保持边坡围岩的稳定和完整,从而有效保证了施工质量和工程进度,可为类似工程提供参考.

This paper takes channel blasting in Zhetang protective engineering in Xiajiang water junction as an example,hierarchical segmented shallow hole loose controlled blasting of the main part of channel combined with pre- splitting blasting technique in the slope was used in the project. According to the geological information and adjacent buildings condition,reasonable blasting parameters were selected and specific construction schemes were made. The results showed that by using the pre- mentioned process,the impact of blasting on surrounding environment was effectively reduced and the stability and integrity of the adjoining rock remained,ensuring the construction quality and project schedule,providing references for similar works.