BLASTING, Volume. 40, Issue 2, 138(2023)
Design and Research of Wave Blocking Curtain for Underwater Blasting based on ANSYS LS-DYNA
Underwater blasting tests are dangerous and costly.The requirements for the related test equipment and site in laboratory are very strict.Each test must be approved in accordance with relevant procedures.In view of the current situation of cumbersome blasting test procedures and long waiting periods,a wave barrier curtain which can achieve satisfactory results with as few underwater blasting tests was designed by using collision and vibration simulation technology.In order to achieve this purpose,the protection of wave barriers made of different materials were simulated by the ANSYS LS-DYNA module.Data were collected at a position 5 m away from the explosion point with a pressure of 7.5 MPa,and the detonation wave reduction coefficients of the canvas wave blocking curtain and other five different materials were compared and analyzed.The simulation results showed that the wave resistance performance in order from high to low is:air bubble,porous aluminum plate,automobile tire,foamed plastic,asbestos cloth.Among them,under the equivalent working condition of 1 kg TNT,and at the location 5 m away from the explosion point with a pressure of 0.22 MPa,the air bubble′s pressure reduction rate reached 97%,and the protection effect was the best.
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FAN Huai-bin, LU Shao-feng, MO Chong-xun, WANG Xu-guang, DIAO Yue, HU Ying-guo. Design and Research of Wave Blocking Curtain for Underwater Blasting based on ANSYS LS-DYNA[J]. BLASTING, 2023, 40(2): 138
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Received: Jan. 23, 2023
Accepted: --
Published Online: Jan. 22, 2024
The Author Email: Huai-bin FAN (285738643@qq.com)