Bài viết đã tiến hành nghiên cứu lý thuyết qui luật đập vỡ đất đá theo quan điểm năng lượng xác suất để thiết lập phương trình đập vỡ đất đá trong đá sét kết dưới nước. Đây là một dạng phương trình bán thực nghiệm,trong đó chứa 4 hệ số thực nghiệm phản ánh đặc tính đất đá, điều kiện nổ, đặc tính hấp thu năng lượng nổ của đá và thể tích phá hủy thực tế, được xác định cho từng loại đất đá. | Journal of Mining and Earth Sciences Vol. 64 Issue 5 2023 109 - 119 109 Research to establish the equation of the principle of claystone breaking under the seabed Thang Trong Dam 1 Bang Xuan Vu 2 1 Le Quy Don Technical University Hanoi Vietnam 2 Institute of Technical Engineering Hanoi Vietnam ARTICLE INFO ABSTRACT Article history The rule of breaking rock has practical significance in the process of Received 02nd June 2023 controlling the blasting for the optimization of mine production or Revised 04th Sept. 2023 construction of blasting works. The equations describing the particle size Accepted 29th Sept. 2023 distribution after the explosion are established in an experimental form Keywords corresponding to the specific conditions of the blasting work. It only has Blasting work the meaning of a mathematical regression function and does not reflect Breaking rock the characteristics of the rock type explosive conditions and explosive results. This research has exploited the theory of rock breaking from the Particle size distribution point of view of probabilistic energy to establish the equation of rock Underwater explosion. breaking of claystone in water. This is a form of semi-empirical equation which contains 4 empirical coefficients reflecting rock characteristics explosive conditions explosive energy absorption characteristics of rocks and actual destruction volume determined for each type of rock. Through conducting experiments processing experimental data and solving a system of four equations four coefficients of the equations that characterize the breaking properties of claystone under the seabed have been found. The error of the average particle size between the actual and calculated values from the equations is less than 7 to 10 . Tt is possible to confirm the accuracy of the semi-empirical equation describing the particle size distribution rule when the claystone is exploded underwater. Copyright 2023 Hanoi University of Mining and Geology. All rights
