Method for solving parameters in Duncan-Chang hyperbolic model based on Excel
A technology of model parameters and hyperbola, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve the problems of large human influence factors, low efficiency, low accuracy, etc.
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[0131] The specific implementation manners of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementations described here are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.
[0132] The following describes the method and principle of using Excel to solve the shear strength index of triaxial compression test, see Figure 4 :
[0133] When drawing the strength envelope of each Mohr stress circle, due to the inhomogeneity of the soil sample, human error and equipment error, the strength envelope often cannot be tangent to all Mohr stress circles, and there are always some deviations. According to the planning and solution theory in operations research, the minimum value of the sum of squares of deviations can be solved to determine the strength envelope of the Moiré stress...
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