地下连续墙成槽预裂爆破施工技术研究  

Research into Construction Technology of Trench for Diaphragm Wall with Presplitting Blasting

作　　者：尹志清 朱德华[2] 

机构地区：[1]中交隧道工程局有限公司,北京100102 [2]南京林业大学土木工程学院,江苏南京210037

出　　处：《南京工程学院学报（自然科学版）》2017年第2期34-39,共6页Journal of Nanjing Institute of Technology(Natural Science Edition)

基　　金：高等学校博士学科点专项科研基金项目(20133204120015);江苏省高校自然科学基金项目(12KJB560003)

摘　　要：为了解决地下连续墙传统成槽工艺在微风化混合花岗岩破除时成槽困难的问题,利用预裂爆破机理,采用地下连续墙成槽预裂爆破施工技术,对预裂爆破的参数确定和爆破效果进行分析.结果表明,采用预裂爆破技术可以提高施工效率并节约施工成本.通过合理确定预裂爆破的参数,可以有效解决成槽困难的问题.所做工作为在复杂地质下的地下连续墙的成槽提供新的施工技术和经验.It is difficult to adopt conventional trenching technologies for constructions in underground mixed granite of diaphragm walls. To solve such a problem, this paper examines the determination of parameters and blasting effect of presplit blasting by using mechanism for presplitting blasting and construction technology of trench for diaphragm wall with presplitting blasting. The results show that the efficiency of construction can be improved and construction cost reduced by using presplitting blasting technology. It can effectively solve the problem of inefficiency and difficulty in trenching slope rocks, through reasonably determining the parameters of presplitting blasting. And this can provide technology and experience for future construction of diaphragm walls under complex geology.

关 键 词：地下工程 地下连续墙成槽 预裂爆破 施工技术 

分 类 号：TU476[建筑科学—结构工程]