Portable slope runoff water and sand collecting tank

A portable technology for slope runoff, applied in fluid dynamics test, machine/structural component test, soil material test, etc., can solve runoff and sediment production value, sediment litter and fallen leaves deposition, system Problems such as gender deviation, to achieve the effect of portability, reusability, convenient construction, and improved reliability

Pending Publication Date: 2020-07-24
安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the structure of this model is simple and the construction is convenient, the silt, litter and fallen leaves at the bottom of the groove and the water outlet are seriously silted up.
Especially in the late stage of runoff, due to the regulation, storage and interception of sediment in the water and sand collection tank, the flow and sediment content at the outlet of the water and sand collection tank cannot represent the actual runoff and sediment production value of the upstream runoff area. That is, the systematic deviation between the measured data and the actual data

Method used

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  • Portable slope runoff water and sand collecting tank
  • Portable slope runoff water and sand collecting tank
  • Portable slope runoff water and sand collecting tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , 2 As shown, the portable slope runoff water and sand collection tank includes a triangular water and sand collection tank for collecting the runoff of the runoff area, and an outlet pipe 4 for draining the water and sand collection tank.

[0028] Wherein, the water and sand collection trough includes a rain shield 1 arranged at an inclination, a beam flow plate 2 located below the rain shield 1, an anti-splash erosion plate 3 installed on the upper end of the rain shield 1, and a beam flow plate 2 located at the upper end of the rain shield 1. Below and the low-roughness plate 5 that is arranged parallel to the rain shield 1, the backwash sealing plate 7 installed on the lower end of the rain shield 1, the beam flow plate 2 is provided with two and is axisymmetrically arranged, and the shield The rain plate 1 and the beam plate 2 are sealed and connected, and the low-roughness plate 5 is sealed and connected with the beam plate 2; the surface of the ...

Embodiment 2

[0045] With the specifications and parameters provided in Example 1, the artificial rainfall runoff experimental field of the Wudaogou Hydrology and Water Resources Experimental Station was rebuilt. The runoff plot has a slope angle of 15 degrees, a length of 8m along the slope, and a width of 4m vertically. The original water and sand collection tank adopts a groove design, and the design of the portable slope runoff water and sand collection tank proposed in this invention is transformed.

[0046] Before the reconstruction, the inflow flow rate was calculated to be 0.001m by using the two-dimensional hydraulic model 3 Under the / s scenario, the degree of water in the water collection and sand collection tank. It is equivalent to the rainfall intensity of the upstream runoff area is 112mm / h, which is the largest hourly rainfall intensity in the history of the study area.

[0047] The flow effect of the present invention is simulated by using a two-dimensional hydraulic mode...

Embodiment 3

[0050] In this embodiment, the installation method of the portable sloping surface runoff water and sand collection tank is suitable for newly built and reconstructed water and sand collection tanks in runoff communities. The specific steps are as follows:

[0051] Step 1: Take the lower edge of the runoff plot as the upper boundary of the water and sand collection trough, take the runoff plot along the slope direction as the width direction of the water and sand collection trough, and excavate a slope that is equal in width and length to the water and sand collection trough along the slope Surface, the slope of the surface is consistent with the slope of the low-roughness slab, the ground is leveled and compacted, and the surface is hardened with cement;

[0052] Step 2: Plate preprocessing, cut the rain shield, backwash sealing plate, rain shield, splash corrosion plate, beam plate according to the given size requirements, connect the rubber strip with glass glue at one end ...

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Abstract

The invention relates to a portable slope runoff water and sand collecting tank. The portable slope runoff water and sand collecting tank comprises a rain shielding plate, a beam flow plate, an anti-splash plate, a low roughness plate, a backwashing sealing plate, a lower baffle plate and a water outlet pipe. The rain shielding plate, the beam flow plate, the low roughness plate and the lower baffle plate form a closed triangular water and sand collecting tank, runoff of a runoff plot is quickly collected to the water outlet pipe, and the runoff volume and the sediment concentration are collected in real time by a sensor installed at the lower end of the water outlet pipe; and the portable slope runoff water and sand collecting tank is built at the downstream of the runoff plot, the anti-splash plate is flush with the lower edge of the runoff plot in spatial arrangement, the low roughness plate is in smooth transition with the ground of the runoff plot, and the gradient of the low roughness plate is slightly larger than that of the runoff plot. The portable slope runoff water and sand collecting tank is suitable for newly building and rebuilding a water and sand collecting device of a fixed runoff plot, and is also suitable for collecting runoff sediment in a field temporary runoff test, the accuracy of measured data of the slope runoff sediment can be improved, and the what you see is what you measure the runoff sediment in the slope runoff is achieved.

Description

technical field [0001] The invention relates to a portable slope surface runoff water and sand collection tank, which belongs to the technical fields of water and soil conservation and hydrological experiments. Background technique [0002] Rainfall runoff and sediment production is an important research content in the field of soil erosion and slope hydrology. Reliable measured data of runoff and sediment production is the key to understanding the mechanism of soil erosion and slope hydrology. The runoff plot is the main experimental facility for studying the mechanism of rainfall, runoff and sediment production. The runoff is collected by the water and sediment collection device arranged at the lower edge of the plot, and then real-time data such as runoff and sediment are collected, and the real-time data of runoff and sediment are used to represent the actual runoff plot. Flow and sand production information. This requires that the water collection and sediment collecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01M10/00
CPCG01N33/24G01M10/00
Inventor 胡勇周超胡坤胡永胜王敏杰王兵章启兵陈小凤
Owner 安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站)
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