Method for measuring flow and mud content of artificial rainfall runoff plot and control system

A technology of sediment content and runoff area, which is applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, measuring devices, etc., can solve the problems of large influence of observation data and scientificity, low degree of automation, time-consuming and labor-intensive, etc., to achieve Field measurement and autonomous operation are highly adjustable, reducing the influence of human factors, and the effect of high degree of simulation

Inactive Publication Date: 2011-06-08
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional soil and water loss monitoring facilities are outdated, immobile, low in automation, long in monitoring cycle, time-consuming and labor-intensive, poor in reliability, unable to realize real-time online monitoring, and human factors have a relatively large impact on observation data and scientificity

Method used

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  • Method for measuring flow and mud content of artificial rainfall runoff plot and control system
  • Method for measuring flow and mud content of artificial rainfall runoff plot and control system
  • Method for measuring flow and mud content of artificial rainfall runoff plot and control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Select a slope of 5 degrees in the field as the test area, and prepare water source and power supply;

[0020] 2) Use baffles to enclose corresponding runoff plots in the test area;

[0021] 3) Install artificial rainfall devices and surface slope runoff and sediment content measuring instruments;

[0022] 4) Adjust the rainfall intensity within a unit time period, and measure the parameters of flow rate and sediment content in the runoff area in the process of rainfall erosion in real time.

Embodiment 2

[0024] 1) Select a slope of 45 degrees in the field as the test area, and prepare water source and power supply;

[0025] 2) Use baffles to enclose corresponding runoff plots in the test area;

[0026] 3) Install artificial rainfall devices and surface slope runoff and sediment content measuring instruments;

[0027] 4) Adjust the rainfall intensity within a unit time period, and measure the parameters of flow rate and sediment content in the runoff area in the process of rainfall erosion in real time.

Embodiment 3

[0029] figure 1 The control principle diagram of the measurement system of flow rate and sediment content in the artificial rainfall runoff area of ​​the present invention is given, which is composed of a power supply, a simulated rainfall controller, a runoff sediment data acquisition manager, a data acquisition dynamic display computer, a sediment measurement sensor, and a water pump , a flow measurement sensor, and a simulated rainfall device, the power supply 1 supplies power to the simulated rainfall controller 2, the runoff sediment data collection manager 3, the data collection dynamic display computer 4, and the water pump 6 respectively, and the data collection dynamic display computer 4 Send work instructions to the simulated rainfall controller 2 and the runoff sediment data collection manager 3 respectively. After receiving the instructions, the simulated rainfall controller 2 controls the water pump 6 and the simulated rainfall device 8 to work, and the flow measur...

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Abstract

The invention discloses a method for measuring the flow and the mud content of an artificial rainfall runoff plot, which specifically comprises the following steps of: (1) selecting an appropriate slope in the wild as a test site, and preparing a water source and a power source; (2) surrounding the test site into a corresponding runoff plot by using baffle plates; (3) installing an artificial rainfall device and a surface slop runoff and mud content measurement instrument; and (4) adjusting rainfall intensity within a time period, and monitoring the parameters of flow and mud content of the runoff plot in the rainfall erosion process in real time. The invention also discloses a control system of the measurement method. By using the method, the flow and the mud content of the runoff plot can be recorded in real time. Moreover, the method has great mobility, the measurement effect closest to natural is achieved according to different surface conditions and site measurement, and a data basis is established to quickly acquire the soil erosion modulus of development and construction projects.

Description

technical field [0001] The invention belongs to the technical field of real-time monitoring of water and soil loss, and in particular relates to a method for measuring flow and sediment content in runoff plots by artificial rainfall and a measurement system thereof. Background technique [0002] Water and land resources are the most basic material for human survival and the basic resources for economic and social development. Soil erosion is one of the world's environmental disasters. The occurrence and development of soil erosion is affected by many factors such as precipitation, soil, topography, vegetation cover and land use type, and is a complex process of human and physical geography. Traditional soil and water loss monitoring facilities are outdated, immobile, low in automation, long in monitoring cycle, time-consuming and labor-intensive, poor in reliability, unable to realize real-time online monitoring, and human factors have a relatively large impact on observatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/00G01N33/24
Inventor 高照良李永红赵军唐林王天伟
Owner NORTHWEST A & F UNIV
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