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Debris flow velocity measurement method and implementing system thereof

A technology for flow velocity measurement and debris flow, applied in fluid velocity measurement, velocity/acceleration/impact measurement, measuring devices, etc., can solve problems such as failure to work, and achieve simple equipment and materials, simple measurement and calculation process, and reliable calculation results.

Inactive Publication Date: 2010-06-02
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that conventional optics and radio waves cannot penetrate the mud-rock flow and the conventional flow velocity probe is easily damaged inside the mud-rock flow and cannot work, and provides a mud-rock flow velocity measurement method and its realization system. , the method and system can measure the internal flow velocity of debris flow, and the measurement method is convenient, fast and accurate, and the structure of the measurement system is simple and the construction cost is low

Method used

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  • Debris flow velocity measurement method and implementing system thereof
  • Debris flow velocity measurement method and implementing system thereof
  • Debris flow velocity measurement method and implementing system thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 1 , 2 , 3, 4, and 5. On August 3, 2009, the indoor debris flow experiment was carried out in the test hall of the Dongchuan Debris Flow Observation and Research Station of the Chinese Academy of Sciences to measure the internal flow velocity of the debris flow.

[0039] (1) Experimental system installation

[0040] The experimental system includes an experimental tank 4 for simulating a debris flow ditch and a corresponding measurement system. The measurement system includes a shear force measurement device 1, a data collector connected to the shear force measurement device 1 in sequence, and a computer for data processing.

[0041] The experimental tank 4 is 6m long and 30cm wide, and has a rectangular cross section; the bottom plate of the experimental tank 4 is made of steel plate, and the side wall is made of glass. Install a sensor bracket 41 on the right side wall of the experimental tank 1.7m and 1.5m away from the tail of the experimental tank...

Embodiment 2

[0060] Such as Figure 6 , 7 , 8 shown. On August 3, 2009, the indoor debris flow experiment was carried out in the test hall of the Dongchuan Debris Flow Observation and Research Station of the Chinese Academy of Sciences to measure the internal flow velocity of the debris flow. In its (1), (2) part, the same part as that in Embodiment 1 is not repeated, and its difference is specifically:

[0061] (2) Measurement of internal velocity of debris flow

[0062] The measurement of the internal flow velocity of the debris flow is carried out according to the following steps:

[0063] S1. Arrangement of measurement sections A and A' and measurement positions a and a'

[0064] The operation is the same as that of S1 in the first embodiment.

[0065] S2, collect the shear force data at the measurement positions a and a', and process them

[0066] S21. Collect the shear force change process data at the measurement positions a and a'.

[0067] When the debris flow is flowing, th...

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Abstract

The invention discloses a debris flow velocity measurement method and an implementing system thereof. Aiming at the defect that methods and devices for measuring internal flow velocity of debris flow are laced in the prior art, the invention provides the method for measuring the debris flow velocity, which comprises the following steps of: arranging two measuring cross sections along the motion direction of the debris flow, measuring and acquiring shearing force change data of the debris flow at the corresponding positions on the two cross sections, and then obtaining corresponding internal flow velocity of the debris flow by calculating according to the shearing force waveform comparison result at the corresponding positions on the two cross sections. The invention also provides a measurement system and an experimental measurement system for implementing the method. Compared with the prior art, the invention solves the technical difficult problem that the measurement of the internal flow velocity of the debris flow can not be solved all the time in the prior art and also solves the technical difficult problem that a routine measurement instrument can not work in the flowing debris flow. The measurement method is reliable in principle, easy to operate, high in measurement result accuracy, simple in measurement system structure, saves the cost and can be used repeatedly.

Description

technical field [0001] The invention relates to a method for measuring debris flow velocity and its realization system, in particular to a measurement method for debris flow velocity and a corresponding measurement system realized by measuring the shear force of debris fluid at corresponding measurement positions on two measurement sections. Background technique [0002] Debris flow is a common and frequent geological disaster in mountainous areas of China (especially the mountainous areas in southwest China). It has the characteristics of sudden occurrence, short duration, ferocious onset, large erosion and silting, and strong destructive power. Once it occurs, it often causes serious regional ecological environment. Destruction and huge economic losses and casualties. Therefore, the study of debris flow disasters has been one of the key areas that researchers in my country have devoted themselves to for decades. In the study of debris flow, the velocity of debris flow is ...

Claims

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Application Information

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IPC IPC(8): G01P5/02G01P5/18G01P5/22
Inventor 韦方强胡凯衡杨红娟洪勇黎晓宇江玉红
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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