Bằng phương pháp giải tích và phương pháp lượng nổ ảo, bài báo đã xác định được quy luật lan truyền của các sóng mới hình thành khi sóng nổ lan truyền trong nước gặp màn chắn bóng khí. Kết quả nghiên cứu cũng chỉ ra càng tăng chiều dày lớp màn chắn bóng khí hoặc càng tăng hàm lượng bóng khí hay càng tăng khoảng cách từlượng nổ đến màn bóng khí thì cường độ sóng nổ khi đi qua màn chắn suy giảm càng mạnh. | Journal of Mining and Earth Sciences Vol. 62 Issue 5 2021 97 - 105 97 Research on the influence of bubble curtains on shock wave fields of the underwater explosion Thang Trong Dam 1 Viet Duc Tran 2 1 Military Technical Academy Hanoi Vietnam 2 Academy of Military Science and Technology Hanoi Vietnam ARTICLE INFO ABSTRACT Article history Shock waves which derive from explosions generate reflected and Received 1st June 2021 refracted waves when propagating in the layered medium with various Accepted 16th Aug. 2021 acoustic stiffness. Depending on the acoustic characteristic of each layer Available online 31st Oct. 2021 of the medium properties of reflected and refracted waves will increase Keywords or decrease pressures stresses at the investigated point of medium Bubble curtain compared to influences of explosive shock waves incident waves Shock wave propagated in a homogeneous and isotropic medium. Based on this mechanical physical property scientists have studied a diversity of Underwater explosion. solutions decreasing effects of explosive shock waves in various medium such as rock and soil water air. However currently there have not been any comprehensive theoretical studies on the reduction in intensity of the underwater explosion shock wave when interacting with bubble curtain. By using the analytical method and the virtual explosive method the paper presents the propagation rule of new waves formed when the underwater explosion shock wave interacts with the bubble curtain. The results showed that the more the thickness of the bubble curtain or the higher the bubble content or the longer the distance from the explosive to the curtain the weaker the intensity of the shock wave when passing through the curtain. Copyright 2021 Hanoi University of Mining and Geology. All rights reserved. _ Corresponding author E - mail thangdt@ DOI 5 .09 98 Tạp chí Khoa học Kỹ thuật Mỏ - Địa chất Tập 62 Kỳ 5 2021 97 - 105 Nghiên cứu ảnh hưởng của
