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| Dynamic response analysis of blasting vibration on masonry building structures |
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Received:October 11, 2017
Revised:October 16, 2017
Accepted:October 23, 2017
Published Online:March 29, 2018
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| DOI： |
| KeyWord:blasting vibration; masonry structure building; dynamic response |
| Author | Institution |
| HUANG Qi |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| ZHANG Zhi-yu |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| LI Xiang-long |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| YUAN Tie-jun |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| MI Zhong-yang |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
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| Abstract: |
| For the effective analysis of the dynamic response process of open pit blasting vibration on adjacent building, and mainly related to the Kunyang Phosphorite Stope blasting,the blasting vibration on adjacent three layer masonry structure building was monitored. The calculation model of masonry structure was established by using the finite element software ANSYS-LSDYNA, and the blasting vibration wave was loaded into the calculation model for numerical simulation analysis.The rsearch showed that: under blasting vibration, the radial acceleration of building is slightly smaller than the tangential acceleration,and the radial displacement is slightly smaller than the tangential displacement, and the displacement of radial wall and floor of the 1 floor building and tangential floor and wall of the 3 floor building is more prominent, which is a high-risk area of shock damage.The vibration response caused by blasting on the three-layer masonry structure had no effect on the overall stability and safety of the three-layer masonry structure. When multiple blasting operations were carried out near the masonry structure, it is necessary to pay attention to the cumulative damage effect of multiple blasting vibration on the building structure, and some measures on vibration attenuation should be taken to ensure the overall structural safety of the construction. |
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