Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for judging groove debris flow occurring possibility at present and groove debris flow occurring possibility in future

A technique for mudslides and trenches, which is applied in the field of judging the occurrence of mudslides in trenches, and can solve the problem of large errors between judgment conclusions and actual conditions

Active Publication Date: 2013-11-27
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for judging whether the channel debris flow is currently occurring and whether it will occur in the future, mainly to solve the gap between the existing technical means and the actual situation between the judgment conclusion and the actual situation of whether the channel debris flow is currently occurring and whether it will occur in the future. There is a problem of large errors between

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for judging groove debris flow occurring possibility at present and groove debris flow occurring possibility in future
  • Method for judging groove debris flow occurring possibility at present and groove debris flow occurring possibility in future
  • Method for judging groove debris flow occurring possibility at present and groove debris flow occurring possibility in future

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] The present invention is mainly used for judging whether the debris flow in the ditch has occurred at the current moment and whether it will occur in the future, wherein the steps for judging whether the debris flow in the ditch at the current moment are as follows:

[0042] S1: Select the channel and use the formula Calculate the water level h in the channel when the debris flow starts s , where θ is the trench bed slope expressed in angle units, d m and are the average grain size and internal friction angle of the channel deposits, respectively, C * is the volume concentration of the accumulation body, ρ s is the gravel density, ρ w is the density of water; all parameters in this step can be measured by existing equipment or experimental means, for example, the slope of the ditch bed θ can be measured by a compass or a measuring rope, and the average particle size of the gravel in the ditch accumulation d m It can be obtained by measuring the gravel particle si...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for judging the groove debris flow occurring possibility at present and the groove debris flow occurring possibility in future. The method for judging the groove debris flow occurring possibility at present includes the steps of S1, selecting a groove, and using the formula (please refer to the specifications for the detailed formula) to calculate the hs, S2, using the formula to calculate the h0, and S3, comparing to judge whether the h0 is larger than or equal to the hs or not, issuing a debris flow alarm starting information if the h0 is larger than or equal to the hs, and being free of issuing the debris flow alarm starting information if the h0 is smaller than the hs. The method for judging the groove debris flow occurring possibility in future includes the steps of S1, selecting the groove, and using the formula to calculate the Q0', S2, using the formula to calculate the Q0, S3, using the formula to calculate the Cq, and using the formula to calculate the n, S4, using the forecast precipitation information issued by the meteorological department, and respectively obtaining P1, P2, P3...Pi, S5, using the formula to calculate the Qi, S6, solving S7, comparing to judge whether the Pi is larger than or equal to the P0 or not, and using the iteration method to determine the hi, and S8, comparing to judge whether the hi is larger than or equal to the hs or not, issuing the debris flow forecast starting information if the hi is larger than or equal to the hs, and being free of issuing the debris flow forecast starting information if the hi is smaller than the hs. The method is concise in technological process and accurate in judged conclusion.

Description

technical field [0001] The invention relates to a method for judging the occurrence of channel debris flow, in particular to a method for judging whether the channel debris flow is currently occurring and whether it will occur in the future. Background technique [0002] Debris flow, as a major natural disaster, seriously affects the economic development of mountainous areas, and threatens people's lives and property safety. At the same time, it also seriously threatens the sustainable development of society. [0003] At present, as an important means of disaster reduction, debris flow early warning has gradually attracted extensive attention from disaster reduction scientific and technological workers and relevant government management departments. The existing debris flow early warning mostly uses rainfall as the index to judge whether the debris flow occurs. However, there is no perfect theory and method to determine the direct relationship between the rainfall and the in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G08B21/10
Inventor 姜元俊乔建平姜震王萌黄栋杨宗佶田宏岭孟华君
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com