Mathematical modeling of the deformation modulus of subsidence soil compacted by explosion using the regression analysis method
Abstract
Mathematical modeling of compaction of subsidence soils by blasting leads to the problem of assessing the deformation properties of soils. The most important of these is the deformation modulus. Determining the deformation modulus is a labor-intensive task, leading to the accumulation of errors in the values during implementation, both in the field and in laboratories. This article presents a mathematical modeling of the deformation modulus assessment using regression analysis. Regression equations are constructed for the dependence of the soil deformation modulus on the diameter of the camouflet cavity for various values of the porosity coefficient, moisture content, and plasticity index of the soil. Approximating polynomials have determination coefficients equal to 0.8012 to 0.9891 and an accuracy of 0.84-0.96. The constructed approximating polynomials made it possible to increase the accuracy of determining the soil deformation modulus by 1.2-1.5 times. Regression models are applicable in the design of construction projects on subsidence soils compacted by deep blasts.
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