Method for calculating flow of mudslide behind dam and application thereof

A flow calculation and debris flow technology, applied in computing, special data processing applications, climate change adaptation, etc., can solve problems affecting the effect of disaster prevention and mitigation in debris flow areas, enhance flood discharge and disaster prevention capabilities, ensure disaster prevention and mitigation effects, The effect of saving engineering materials
CN107423484AActive Publication Date: 2017-12-01CHENGDU UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU UNIVERSITY OF TECHNOLOGY
Publication Date
2017-12-01

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Abstract

The invention discloses a method for calculating flow of mudslide behind a dam and application thereof, belonging to the field of mudslide prevention and control projects. The method comprises the following steps of a. obtaining incoming mudslide total W and mudslide peak flow Q through hydrologic calculation, and investigating on the side to determine a storage capacity C of the dam, a yield stress Tau of the mudslide, a volume weight Rho of the mudslide and a characteristic particle size D<90> of mudslide; and b. calculating the flow Q of mudslide behind the dam according to the incoming mudslide total W, the mudslide peak flow Q, the storage capacity C of the dam, the yield stress Tau of the mudslide, the volume weight Rho of the mudslide, the characteristic particle size D<90> of mudslide, and a dimensionless yield stress factor Tau*. The method is applicable to outdoor large scale actual calculation, can calculate the flow of the mudslide behind the dam accurately, provides reliable data reference for the mudslide prevention and control project, and ensures disaster prevention and mitigation effects in mudslide regions.
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Description

technical field

[0001] The invention relates to the field of mud-rock flow prevention and control engineering, in particular to a method for calculating the flow of mud-rock flow behind a retaining dam and its application. Background technique

[0002] my country is a mountainous country with mountainous areas accounting for 70% of the total land area. Debris flow ditches are widely distributed and the disasters are serious. Debris flow prevention and control projects are one of the main measures for disaster prevention and mitigation of debris flow, especially for the protection of important places such as towns and traffic arteries.

[0003] The retaining dam is an artificial structure built across the ditch bed in the debris flow formation area-circulation area. It is one of the most important and effective engineering structures for debris flow prevention and control.

[0004] At present, scholars at home and abroad are in the stage of empirical judgment on the flow cha...

Claims

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