复杂环境下地下车库拆除爆破优化  

Demolition blasting optimization of an underground garage in a complex environment

作　　者：江云星 黄刚[2] 刘福高 裴勇 齐鹏 裴杰 JIANG Yun-xing;HUANG Gang;LIU Fu-gao;PEI Yong;QI Peng;PEI Jie(Jingzhou Shilei Blasting Engineering Co.,Ltd.,Jingzhou 434200,Hubei,China;School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;Zhejiang Jingan Blasting Engineering Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]荆州石磊爆破工程有限公司,湖北荆州434200 [2]武汉理工大学资源与环境工程学院,武汉430070 [3]浙江京安爆破工程有限公司,杭州310000

出　　处：《工程爆破》2022年第1期75-82,共8页Engineering Blasting

基　　金：中央高校基本科研业务费专项资金资助项目(2019IBV033);长江水利委员会长江科学院开放基金资助项目(CKWV2018471/KY)。

摘　　要：为了进一步研究框架式地下建筑物在拆除爆破过程中的失稳、触地过程,采用ANSYS/LS-DYNA数值模拟软件建立复杂环境下地下钢筋混凝土框架分离式共节点模型。采用毫秒延时爆破的方式形成爆炸切口,模拟采用各种不同爆破方案时建筑物坍塌的过程。通过分析模拟结果来优选爆破方案,并将实际爆破效果与数值模拟结果相对比。结果表明数值模拟结果与实际爆破效果较为相似,可为类似地下框架结构建筑物的拆除爆破提供一定的参考。In order to further study the instability and touchdown process of a frame type underground building in the demolition blasting process,ANSYS/LS-DYNA numerical simulation software was used to establish the separated common node model of the underground reinforced concrete frame in a complex environment.The cuttingwas formed by millisecond delay blasting,and the collapse processes of the building under different blasting schemes were simulated.The best blasting scheme was chosen by analyzing the simulation results,and the actual blasting effect was compared with the numerical simulation result,which shows that the numerical simulation result is similar to the actual blasting effect.This paper could provide a certain reference for the demolition blasting of similar underground frame structures.

关 键 词：拆除爆破 ANSYS/LS-DYNA 地下建筑物 复杂环境 爆破优化 

分 类 号：TD235.3[矿业工程—矿井建设]