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Landslide early warning method for manual slope cutting in slate area and application

A regional, artificial technology, applied in data processing applications, forecasting, alarms, etc., can solve problems such as inapplicability, achieve the effect of strong applicability and improve the quality of landslide warning

Inactive Publication Date: 2018-09-21
江西省气象台 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The existing technologies represented by the above-mentioned patent documents are mainly aimed at landslide early warning in red bed areas, and are not applicable in other areas, and these studies are only used for natural slopes, and the slopes of potential landslides are often below 45 degrees, basically Impossible above 50 degrees

Method used

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  • Landslide early warning method for manual slope cutting in slate area and application
  • Landslide early warning method for manual slope cutting in slate area and application
  • Landslide early warning method for manual slope cutting in slate area and application

Examples

Experimental program
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Effect test

Embodiment 1

[0046] The landslide early warning method of artificial slope cutting in slate area comprises the following steps:

[0047] a. On-site investigation and mapping of landslide body slope α, landslide body area A, and landslide body upper side area A u and the side slope β on the landslide body;

[0048] b. According to Formula 1, calculate the terrain comprehensive discriminant factor T of artificial slope cutting in the slate area;

[0049] T=S+1.7U Formula 1

[0050] In the formula, T is the terrain comprehensive discriminant factor; S is the slope factor of the landslide body, which is calculated and determined according to formula 2; U is the upper and lower terrain factor, which is calculated and determined according to formula 3;

[0051] S=tanα Formula 2

[0052] U=tan(α-β)A u / A Formula 3

[0053] In the formula, α is the slope of the landslide body, unit °; A u is the area of ​​the upper side of the landslide body, unit m 2 ; A is the area of ​​the landslide, in ...

Embodiment 2

[0066] The landslide early warning method of artificial slope cutting in slate area comprises the following steps:

[0067] a. On-site investigation and mapping of landslide body slope α, landslide body area A, and landslide body upper side area A u and the side slope β on the landslide mass;

[0068] b. According to Formula 1, calculate the terrain comprehensive discriminant factor T of artificial slope cutting in the slate area;

[0069] T=S+1.7U Formula 1

[0070] In the formula, T is the terrain comprehensive discriminant factor; S is the slope factor of the landslide body, which is calculated and determined according to formula 2; U is the upper and lower terrain factor, which is calculated and determined according to formula 3;

[0071] S=tanα Formula 2

[0072] U=tan(α-β)A u / A Formula 3

[0073] In the formula, α is the slope of the landslide body, unit °; A u is the area of ​​the upper side of the landslide body, unit m 2 ; A is the area of ​​the landslide, in ...

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Abstract

The invention discloses a landslide early warning method for manual slope cutting in a slate area. The method is characterized by comprising the following steps that a, the slope alpha, area A, upper-side area Au and upper-side slope beta of a landslide body of manual slope cutting in the slate area are investigated, surveyed and mapped on site; b, a topographic comprehensive discriminant factor Tof manual slope cutting in the slate area is calculated according to a formula that T is equal to the sum of S and 1.7U; c, an equivalent rainfall R* and a rainfall factor R are calculated; d, a landslide judgement value P is calculated; e, the landslide judgement value P and a landslide threshold value Cr are subjected to condition discrimination. By means of the method, for manual slope cuttingin the slate area, the internal mechanism of the landslide occurrence degree is studied by studying topographic factors and rainfall factors, the specificity of the slate area and the infiltration characteristic of soil of the slate area are fully considered, an early warning calculation model of slope landslide of manual slope cutting is established, the landslide early warning level is determined quantitatively, and the early warning accuracy is greatly improved.

Description

technical field [0001] The invention relates to the field of artificial slope cutting and landslide prevention and control, in particular to a landslide early warning method and application of artificial slope cutting in slate areas. Background technique [0002] The new slopes formed by artificial slope cutting are widely distributed in low mountain and hilly areas, especially in the eastern low mountain and hilly areas of our country. Due to the growth of people's income, the per capita living area has also been increasing. The original housing can no longer meet the growing living needs of local residents, and new buildings need to be built. But our country has less arable land, and to protect the arable land, if we want to build new houses, we have to find another way. The only way to consider is to form a new dwelling site by cutting slopes on the side of a low mountain. In order to reduce the construction cost, increasing the slope of the slope is the usual choice of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/10G08B31/00G06Q10/04G06Q50/26
CPCG06Q10/04G06Q50/26G08B21/10G08B31/00Y02A90/10
Inventor 张瑛余斌吴雨夫刘波陈文鸿刘云殷剑敏柳清文
Owner 江西省气象台
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