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Device and method for dynamically measuring accumulation thickness of debris flow

A technology of dynamic measurement and debris flow, which is applied in the direction of measuring devices, instruments, and wave/particle radiation, can solve the problem of inability to measure the thickness of dynamic debris flow accumulation, and achieve the effect of improving rescue efficiency, reducing floor space, and compact overall structure

Active Publication Date: 2019-02-01
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the thickness of dynamic debris flow accumulation cannot be measured, and propose a device and method for dynamically measuring the accumulation thickness of debris flow

Method used

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  • Device and method for dynamically measuring accumulation thickness of debris flow
  • Device and method for dynamically measuring accumulation thickness of debris flow
  • Device and method for dynamically measuring accumulation thickness of debris flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method for dynamically measuring the thickness of debris flow accumulation, comprising the following steps:

[0046] S1. Determine different water contents through pre-experiment with different porosity Debris slurry thickness The linear relationship between X-ray and X-ray, such as the following formula;

[0047]

[0048] In the above formula, is the absorption constant of the material, tubes with exposed material, is the relative gray value;

[0049] in for: ,in is the total mass of the material, is the total volume of the material.

[0050] S2. Add materials to the inside of the italic mixing tank 4 and stir. After the materials have been stirred, take multiple groups of samples to measure the water content of the materials in the natural environment and porosity , and measure the total mass of the material and total volume ;

[0051] S3, after the measurement is completed, start the drive device 15 to adjust the angle between the co...

Embodiment 2

[0063] Embodiment 2: the difference based on Embodiment 1 is;

[0064] A device for dynamically measuring the thickness of debris flow accumulation, including a hydraulic rod 1, an oblique mixing tank 4, a connecting plate 5, a driving device 15, and a dark box 6, as well as a mobile support column 22 and a sealing door 2, the middle part of the upper end of the hydraulic rod 1 and the left middle The upper end of the sealing cover 7 is fixedly connected, the inside of the sealing cover 7 is fixedly installed with a stirring device, the left side of the upper end of the hydraulic rod 1 is fixedly connected with the upper end of the sealing door 2, the upper end of the italic mixing tank 4 is movably connected with the lower surface of the sealing cover 7, and the italic mixing tank 4 is on the right A sealing door 2 is movable in the side inner wall, the lower end of the italic mixing tank 4 is fixedly connected with the upper end of the supporting base 12, the right side of th...

Embodiment 3

[0068] Embodiment 3: the difference based on embodiment 1 and 2 is;

[0069] The left and right sides of the feed hole 13 and the front and rear sides of the bottom end of the italic mixing tank 4 are fixedly equipped with a fixed base 10, and a limit shaft 16 is fixedly installed between the fixed bases 10, and the connecting plate 5 is provided with a sliding groove 11 inside to slide. The upper and lower ends of the groove 11 are provided with a rotating groove 17, and the inside of the rotating groove 17 is movably socketed with a limiting shaft 16.

[0070] The present invention is also provided with a connecting plate 5. When in use, by placing the limit shaft 16 on the fixed base 10 inside the rotating groove 17, the angle of the connecting plate 5 can be easily changed. When the device needs to be put away After the height of the dark box 6 is lowered to a suitable height, the limit shaft 16 can be moved to the inside of the rotation groove 17, and then the connecting ...

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Abstract

The invention discloses a device and method for dynamically measuring accumulation thickness of debris flow and belongs to the field of debris flow detection. The method comprises the steps of when the device is in use, firstly calibrating a debris flow slurry accumulation thickness-light transmission curve; determining the maximum accumulation thickness of the slurry and preferably selecting theoptimal light source intensity through preliminary experiments; stirring the debris flow material through an oblique mixing tank; adjusting the angle between a connecting plate and a black box by starting a driving device; turning on a shadowless lamp at the bottom of the black box to adjust to the optimal light intensity; starting a CT (Computed Tomography) machine inside the black box; startinga hydraulic rod to lift a sealing cover and a sealing door to enable the debris flow slurry to flow into the black box along the connecting plate; and photographing through the CT machine, thereby obtaining the accumulation thickness-light transmission curve.

Description

technical field [0001] The invention relates to the field of mud-rock flow detection, in particular to a device and method for dynamically measuring the thickness of mud-rock flow accumulation. Background technique [0002] Debris flow is a common natural disaster in the world. According to statistics, the average annual number of landslides, landslides and debris flow disasters in my country is close to 30,000, among which there are many special and major disasters. On average, nearly 800 people die or disappear due to disasters every year, causing The direct economic loss exceeded 4 billion yuan. Therefore, it is particularly important to study the movement characteristics of natural disasters such as debris flows. The main components of debris flow surface are particles of various sizes, so the study of surface movement of debris flow can be regarded as the study of the movement of irregular particles; [0003] Most of the previous methods for measuring the thickness of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B15/02
CPCG01B15/025
Inventor 邓曌范子武吴时强杨帆乌景秀陈澄昊
Owner NANJING HYDRAULIC RES INST
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