Calculation method for motion steady-state effect of explosion source ground of any configuration

Abstract

In order to solve the problem that a one-dimensional numerical calculation method, selection of feature value points and calculation of the ground motion steady-state effect are adopted for calculation of the ground motion steady-state effect generated by explosion of an existing symmetric explosion source, calculation data are redundant, and consumed time is long; in order to solve the problems in the prior art, the invention provides the calculation method for the ground motion steady-state effect of the explosion source with any configuration. The calculation method is not suitable for the ground motion steady-state effect generated by explosion of other aspheric symmetrical explosion sources. The method specifically comprises the following steps: S1, acquiring the characteristics of an explosion source and the type of a surrounding medium; s2, determining the minimum calculation range and the minimum calculation time of the physical model; s3, simplifying the physical model and establishing a finite element calculation model; s4, selecting a series of value points reflecting explosion source characteristics; s5, calculating by adopting a dynamic finite element program, and outputting a time history curve of the physical quantities of the value points; and S6, performing data processing to obtain a ground motion steady-state effect value generated by explosion of the explosion source.

Description

technical field [0001] The invention relates to the field of numerical calculation of engineering blasting effects, in particular to a calculation method for the steady-state effect of motion of a blasting source of any configuration. Background technique [0002] Engineering blasting is widely used in national economic activities such as infrastructure and mining. Various types and configurations of blast source explosions are widely used in economic construction, national defense and scientific research. Accurately calculating and evaluating the ground motion effects of explosion sources of various types and configurations in the ground medium is of great significance to the evaluation of explosion effects, the design of blasting schemes and safety protection. [0003] The previous method for calculating the steady-state effect of the ground motion of engineering blasting only provides a one-dimensional calculation method for the steady-state effect of the ground motion of...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the calculation of the ground motion steady-state effect that the existing symmetric explosive source explosion produces, the one-dimensional numerical calculation method that adopts, the selection of characteristic value point and the ground motion steady-state effect calculation, calculation data redundancy, It takes a long time; and it is not applicable to the steady-state effect of ground motion caused by the explosion of other non-spherically symmetrical explosive sources, but provides a calculation method for the steady-state effect of ground motion of explosive sources with arbitrary configurations

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