Research to establish the equation of the principle of claystone breaking under the seabed

The rule of breaking rock has practical significance in the process of controlling the blasting for the optimization of mine production or construction of blasting works. The equations describing the particle size distribution after the explosion are established in an experimental form corresponding to the specific conditions of the blasting work. It only has the meaning of a mathematical regression function and does not reflect the characteristics of the rock type, explosive conditions and explosive results. This research has exploited the theory of rock breaking from the point of view of probabilistic energy to establish the equation of rock 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.

How to Cite

Dam, T.Trong and Vu, B.Xuan 2023. Research to establish the equation of the principle of claystone breaking under the seabed (in Vietnamese). Journal of Mining and Earth Sciences. 64, 5 (Oct, 2023), 109-119. DOI:https://doi.org/10.46326/JMES.2023.64(5).10.

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