Numerical Simulation for Demolishment of Dock Cofferdam due to Controlled Blasting

摘要：

　　Used the DDA to simulate the dock cofferdam demolition blasting.Analyzed the characteristics and rules of the blasting in four different states that the inclined hole low water level, the inclined hole high water level, the vertical hole combined with inclined hole low water level and the vertical hole combined with inclined hole high water level.The result shown: in the demolition blasting process of 1 # and 2# dock cofferdam of Zhoushan Zhongtian Shipyard Co., Ltd., the water level had little effect on the slant-hole charge, but had significant effect on the combination of vertical hole and inclined hole.The vertical hole combined with the inclined hole formed the gentler slope in the high water level, and formed the lower rock pile in the low water level, both of them may result water pour into dock instantly.Under the comprehensive analysis, it shows that it will get better blasting results when choosing the inclined hole.

关键词： DDA numerical simulation cofferdam demolition blasting

作者: QIN Hua YANG Jun PENG Xianze CHEN Dayong

作者单位: State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,100 State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Xuz

会议类型: 国际会议

会议名称: The 7th International Conference on Explosives and Blasting(China-Japan-Korea)(ICEB2013)第七届炸药和爆破(中日韩)国际会议

会议地点: 珠海

会议语种:英文

页码: 83-91

在线出版日期: 2013-11-22（万方平台首次上网日期，不代表论文的发表时间）