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

Abstract

The invention provides a comprehensive debris flow disaster reduction method based on dynamic process and energy spectrum analysis. The method includes: judging the hazard inducing environment of a debris flow catchment, building a three-dimensional debris flow catchment model, and calculating the critical agglomeration quantity of loos soil forming debris flow and critical energy during debris flow outbreak; calculating catchment space debris flow feature parameters in a simulated manner according to a debris flow dynamic model and equation; analyzing energy during the movement of the debrisflow, and performing debris flow energy spectrum zoning according to energy distribution and energy increasing and attenuating features; providing the new comprehensive debris flow disaster reductionmethod based on dynamic process and energy spectrum analysis according to the energy spectrum features and the debris flow prevention and treatment function of each zone. The method is widely applicable to prevention and treatment engineering key parameter design, comprehensive debris flow disaster reduction technical systems, debris flow risk management and the like and has great theoretical significance and application value.

Description

technical field [0001] The invention belongs to the field of natural disasters, and in particular relates to a comprehensive debris flow disaster reduction method based on dynamic process and energy spectrum analysis. Background technique [0002] Debris flow is a common mountain disaster. Its activities and hazards are almost all over the mountainous areas of the world. With the warming of the global climate and the intensification of human activities, debris flow activities are becoming more and more active, which seriously threatens the safety of human settlements, ecological security and sustainable mountain areas. Development, etc., disaster prevention and mitigation are urgent. [0003] At present, the prevention and control of debris flow mainly adopts the method of comprehensive management, mainly taking measures such as slope control and ditch control in the debris flow formation area, comprehensively controlling the watershed, controlling water and soil, and improv...

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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