The method of judging the risk of ice-cement flow and its application

A debris flow and risk technology, applied in data processing applications, soil material testing, instruments, etc., can solve the problems of in-depth research on unrecognized topographic conditions, the risk of hard-to-ice cement debris flow, etc., and achieve the effect of accurate and dangerous

Active Publication Date: 2022-04-26
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The method for grading and assessing the risk of debris flow hazards in the glacier distribution area disclosed in this patent document is only based on the traditional assessment method for the risk of debris flow in general areas, and the impact factors of glaciers are added to carry out the risk grading of debris flow. It is difficult to make an accurate judgment on the danger of ice and cement flow through in-depth research on the internal mechanism of terrain conditions

Method used

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  • The method of judging the risk of ice-cement flow and its application
  • The method of judging the risk of ice-cement flow and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The method for judging the risk of ice and cement rock flow includes the following steps:

[0034] a. Determine the basic topographical data of ice, cement and stone flow through on-site measurement: area A0 of glacier and snow-covered area, slope α of gully bed and width W of gully bed above the accumulation area below glacier and snow-covered area;

[0035] b. Measure the slope α and width W of the gully bed in the glacier and the formation area below the snow accumulation area and above the snow accumulation area in different slope sections, and measure the gully slope with the gully length ≥ 10m as the standard;

[0036] c. From the relative area of ​​glacier and snow area A=A0 / W2 And the slope α of the gully bed above the accumulation area below the glacier and snow-covered area divides the danger levels of ice cement flow in different slope sections from high to low:

[0037] When A>500 and 14°<α<21°, the danger of ice cement flow is high;

[0038] When A>500 and...

Embodiment 2

[0044] The method for judging the risk of ice and cement rock flow includes the following steps:

[0045] a. Determine the basic topographical data of ice, cement and stone flow through on-site measurement: area A0 of glacier and snow-covered area, slope α of gully bed and width W of gully bed above the accumulation area below glacier and snow-covered area;

[0046] b. Measure the slope α and width W of the gully bed in the glacier and the formation area below the snow accumulation area and above the snow accumulation area in different slope sections, and measure the gully slope with the gully length ≥ 10m as the standard;

[0047] c. From the relative area of ​​glacier and snow area A=A0 / W 2 And the slope α of the gully bed above the accumulation area below the glacier and snow-covered area divides the danger levels of ice cement flow in different slope sections from high to low:

[0048] When A>500 and 14°<α<21°, the danger of ice cement flow is high;

[0049] When A>500 a...

Embodiment 3

[0057] The method for judging the risk of ice and cement rock flow includes the following steps:

[0058] a. Determine the basic topographical data of ice, cement and stone flow through on-site measurement: area A0 of glacier and snow-covered area, slope α of gully bed and width W of gully bed above the accumulation area below glacier and snow-covered area;

[0059] b. Measure the slope α and width W of the gully bed in the glacier and the formation area below the snow accumulation area and above the snow accumulation area in different slope sections, and measure the gully slope with the gully length ≥ 10m as the standard;

[0060] c. From the relative area of ​​glacier and snow area A=A0 / W 2 And the slope α of the gully bed above the accumulation area below the glacier and snow-covered area divides the danger levels of ice cement flow in different slope sections from high to low:

[0061] When A>500 and 14°<α<21°, the danger of ice cement flow is high;

[0062] When A>500 a...

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Abstract

The invention discloses a method for judging the risk of ice and cement rock flow, which belongs to the technical field of mud-rock flow prevention and control engineering, and is characterized in that it comprises the following steps: a. Determining the area A0 of the glacier and snow-covered area, and above the accumulation area below the glacier and snow-covered area ditch bed slope α and ditch bed width W in the formation area; b. Measure ditch bed slope α and ditch bed width W in different slope sections respectively, and measure ditch slope with the ditch length ≥ 10m as the standard; c. Relative area of ​​glaciers and snow areas A=A0 / W 2 and the slope of the ditch bed α to classify the hazard levels of ice and cement rock flows in different slope sections from high to low; d. The judgment result with the highest hazard level shall prevail. The invention conducts in-depth research on the internal mechanism of the terrain conditions leading to the formation of ice and cement rock flows, establishes a risk judgment model for ice and cement rock flows, determines the risk division levels of ice and cement rock flows, and can accurately judge the danger of ice and cement rock flows.

Description

technical field [0001] The invention relates to the technical field of mud-rock flow prevention and control engineering, in particular to a method for judging the risk of ice cement mud-rock flow and its application. Background technique [0002] Ice and cement flow is a natural phenomenon that occurs in the distribution area of ​​alpine ice and snow. After the ice cement rock flow occurs, the debris flow moves to the downstream accumulation fan, destroying towns, destroying farmland and forests, destroying bridges and roads, and blocking traffic. [0003] The occurrence of ice and cement flow is often due to the rise of local temperature, the melting of ice and snow to form channel runoff, start the solid source in the channel, and form ice and cement flow. The formation of ice and cement flow requires two conditions: 1. The topographical conditions are conducive to the occurrence of ice and cement flow; 2. Certain temperature conditions lead to the melting of ice and snow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/26G01N33/24
CPCG06Q10/0635G06Q50/265G01N33/24
Inventor 余斌范冬捷裴向军冯文凯
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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