Comprehensive disaster reduction method of debris flow based on dynamic process and energy spectrum analysis

Abstract

The invention provides a mud-rock flow comprehensive disaster reduction method based on dynamic process and energy spectrum analysis. The method includes: determining the disaster-forming environment of the debris flow basin, establishing a three-dimensional debris flow basin model, and calculating the critical accumulation amount of loose soil forming the debris flow and the critical energy when the debris flow erupts; based on the debris flow dynamics model and equations, simulating and calculating the spatial debris flow characteristics Parameters; analyze the energy in the process of debris flow movement, based on the energy distribution and energy accumulation and attenuation characteristics, carry out debris flow energy spectrum division; A new method for comprehensive disaster reduction of debris flow. The invention can be widely applied to key parameter design of prevention and control engineering, debris flow comprehensive disaster reduction technology system, debris flow risk management, etc., and has important theoretical significance and application value.

Description

Technical field [0001] The present invention belongs to the field of natural disasters, and specifically, the present invention relates to a comprehensive disaster reduction method based on the power process and energy spectrum analysis. Background technique [0002] Debris flow is a common mountain disaster. Its activities and hazards are almost all over the world. With the increasing global warming and human activities, mudslide activities are getting active, seriously threatened in mountainous people, ecological security, and mountainous areas can sustainable Development, etc., the disaster prevention and mitigation is inseparable. [0003] At present, the prevention and treatment of mudslides mainly adopts a comprehensive manner, mainly in the mudslide formation area, the governance and other measures, comprehensive management, control soil, improve the environment; take break, regulation and spending in the mudslide circulation area; Project, making the mudslide smoothly bel...

AI Technical Summary

Problems solved by technology

Moreover, at present, the design of key parameters of debris flow prevention and control projects is mainly determined by empirical formulas, lacking physical basis and analysis of motion processes, resulting in some design parameters being too small (resulting in failure of prevention and control projects, such as Longchi Bayi Ditch, Qingping Wenjia Ditch, Beichuan Qinglinwan ditch blocking project, etc.) or too large (causing waste of manpower, material and financial resources), the best control effect cannot be achieved

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