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A statistical method for predicting the sedimentation depth of debris flow in one hundred years

A technology of depth prediction and debris flow, applied in calculation, design optimization/simulation, instruments, etc., can solve the problems of adverse effects of road and bridge construction, inability to accurately predict the future deposition of debris flow, etc., to improve convenience and the calculation process is simple and convenient , the effect that the parameters are easy to obtain

Active Publication Date: 2022-06-21
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This vacancy makes it impossible to accurately predict the future deposition of debris flow, which has a negative impact on the construction of roads and bridges, and makes the site selection for post-disaster reconstruction in areas affected by debris flow very limited.

Method used

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  • A statistical method for predicting the sedimentation depth of debris flow in one hundred years
  • A statistical method for predicting the sedimentation depth of debris flow in one hundred years
  • A statistical method for predicting the sedimentation depth of debris flow in one hundred years

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The invention is used to calculate and predict the centennial deposition depth of the Kushuigou debris flow in the Maoxian section of the Chenglan Railway.

[0052] Kushuigou is located about 100m northeast of Wangjia Village, Goukou Township, Maoxian County, Sichuan Province. .

[0053] Obtain the catchment area of ​​Kushuigou watershed through actual investigation (km 2 ), the slope of the watershed, the length of the main ditch (km), and the centennial deposition depth (m) of the Kushui ditch debris flow was calculated by formula 1.

Embodiment 2

[0055] The invention is used to calculate and predict the centennial deposition depth of the Jiazhusigou debris flow in the Songpan section of the Chenglan Railway.

[0056] Jiazhusigou is about 3000m downstream of Zhenping on the left bank of the Minjiang River in Songpan.

[0057] Obtain the catchment area of ​​Jiazhusigou watershed through actual investigation (km 2 ), the slope of the watershed, the length of the main ditch (km), and the centennial deposition depth (m) of the Jiazhusi ditch debris flow was calculated by formula 1.

Embodiment 3

[0059]The invention is used to calculate and predict the centennial deposition depth of the debris flow in the Gezigou of the Songpan section of the Chenglan Railway.

[0060] Gezigou is located in the upper reaches of Zhenping on the left bank of the Minjiang River in Songpan.

[0061] Obtain the catchment area of ​​the Gezigou watershed through actual investigation (km 2 ), the slope of the watershed, the length of the main ditch (km), and the centennial deposition depth (m) of the Gezigou debris flow was calculated by formula 1.

[0062] The calculation results are shown in Table 2:

[0063] Table 2

[0064]

[0065] From Table 2 and figure 2 It is known that the results obtained by the above method for calculating the centennial deposition depth of debris flow are close to the actual field exploration results. Therefore, the method for calculating the centennial deposition depth of debris flow disclosed in the present invention has practical value.

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Abstract

The present invention relates to the technical field of geological disaster prevention and control engineering, and in particular to a method for predicting the deposition depth of debris flow over a century based on a statistical method. Based on the results of field investigations, the catchment area, slope of the watershed, the length of the main ditch and the For the century-old sedimentation depth, use Origin software to fit the functional relationship between the four, and calculate the century-old sedimentation depth of the debris flow. The invention reduces the workload of field investigation and improves the convenience of predicting the century-old sedimentation depth of mud-rock flow. The invention is suitable for long-term prediction of debris flow deposition depth in earthquake areas, and the century-old deposition depth of debris flow is obtained through calculation, which provides reference for site selection of subsequent construction roads and bridges.

Description

technical field [0001] The invention relates to the technical field of geological disaster prevention and control engineering, in particular to a method for predicting the sedimentation depth of debris flow in a century based on a statistical method. Background technique [0002] Debris flow, as a two-phase fluid between water flow and debris flow, has a sudden, ferocious, destructive, rapid and strong effect on mountain areas, and is the most important form of post-effect of geological disasters in strong earthquake areas , will seriously endanger the safety of residents, towns, transportation, water conservancy, power facilities, etc. in the disaster area for a long period of time in the future, and is one of the important constraints affecting post-disaster recovery and reconstruction. Towns, villages and other residential areas located in high mountain and valley areas, as well as highways, railways and other lifeline projects in mountain areas, mostly pass through debri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/2458G06F30/20
CPCG06F16/2462G06F30/20
Inventor 唐川李明威龚凌枫李宁丰强张宪政
Owner CHENGDU UNIVERSITY OF TECHNOLOGY