To Simulate the Demolation Blasting Collapse Process of Large-size Structures by Using Slm-dem
It is a complicated problem to identify the mechanism of structural collapse process during demolition blasting.Numerical simulation is one of the effective measures to study the process. In this paper, the art-of-state of numerical methods in this field has been discussed in detail. The SLM (Solid Lattice Model) developed by author has been introduced. The SLM is suitable to simulate the complicate dynamic process for structural collapse of demolishing blast in frame of DEM (Discrete Element Method). The structure has been discretized by using the method of calculation geometry. The beams have been added between two neighboring elements, as result, a net of beams has been generated. The net of beams represent the stress characteristics. The end forces of beams have calculated using matrix-displacement method, and the strength rule has been described by Herrmann theory. The simulated soft has been developed in the platform of VC++, STL and OPENGL. The software has been used in the simulation of demolishing blasting of one Building. The simulated results approach to real ones.
structural collapse DEM SLM numerical simulation
XIE Xianqi JIA Yongsheng LIU Changbang LIU Jun LUO Qijun
Wuhan Blasting Engineering Company, Wuhan, China Wuhan Blasting Engineering Company, Wuhan, China School of Resource and Environment Engineering, Wuh Geotechnical Research Institute, Hehai University, Nanjing, China
国际会议
The Second Asian-Pacific Symposium on Blasting Techniques(第二届亚太地区爆破技术研讨会)
大连
英文
303-307
2009-07-01（万方平台首次上网日期，不代表论文的发表时间）