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Method and apparatus for sampling runoff on slope

A technology of slope runoff and collection method, applied in sampling devices and other directions, can solve problems such as automatic and continuous monitoring of the dynamic process of slope erosion, which is difficult to achieve, and achieve the effects of high degree of automation, convenient management and simple structure

Inactive Publication Date: 2006-06-21
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the methods and devices used for runoff sampling are mainly the barrel method and the multi-hole diversion device, which belong to the lumped measurement. The equipment used in this collection method is simple, the operation and management are convenient, and it can complete the determination of the total amount of slope erosion during a rainfall process. However, with the continuous development of eco-environmental science and watershed hydrology, distributed monitoring and management of slope runoff and erosion processes are required. Because the current traditional collection methods are not easy to segment slope runoff, It is difficult to automatically and continuously monitor the dynamic process of slope erosion, and the systematic errors caused by traditional runoff sampling methods can no longer meet the ever-changing scientific needs

Method used

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  • Method and apparatus for sampling runoff on slope
  • Method and apparatus for sampling runoff on slope
  • Method and apparatus for sampling runoff on slope

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Embodiment Construction

[0023] As shown in the figure, the slope runoff collection method of the present invention is to build a V-shaped diversion weir on a slope with a set area, and set a baffle 1 and a water diversion pipe 2 at the end, and set the slope runoff at the corresponding position below the diversion pipe. Collecting device, the slope runoff collecting device of the present invention is mainly divided into a water moving part and a rotating part. The water moving part is driven by a water collecting bucket to lift the pawl arm 4 and the stylus 10 to do the dot; the rotating part is driven by a spring spring to drive the ratchet wheel. 15 rotation, the clockwork of the clock 13 drives the recording paper 12 to rotate. The main structure of the hydrodynamic part is composed of two water collecting buckets 7 arranged opposite to each other supported on the turning shaft. During the rainfall process, the slope runoff containing sediment enters the water collecting bucket 7 through the water col...

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Abstract

The invention discloses a slope radial flow gathering method and device to gather and gauge random time step flow sample at direct pattern, which comprises the following parts: lower frame, spring and slope water gathering pipe, wherein the lower frame corresponds to the slope water gathering pipe, which contains water gathering dump, ratchet rotary table, dividing disk and water gathering container; the spring actives the ratchet to rotate; the dividing groove is set on the dividing disk corresponding to the flow pipe of ratchet rotary table; each opening of dividing groove connects the water gathering cup under the groove. The invention simplifies the structure and saves the power and cost, which is more fitful for field sample test and data gathering.

Description

Technical field [0001] The invention relates to a slope runoff collection method and device matched with a runoff collection system in a mountainous small watershed, which is mainly applied to the test of soil erosion and soil erosion under the conditions of natural rainfall and artificial simulated rainfall, and belongs to small water conservancy engineering equipment for water and soil conservation Technical field. Background technique [0002] The sediment content of runoff in soil erosion is one of the important parameters to measure soil erosion. The determination of the sediment content in water flow is of great significance to the study of soil erosion and the management of soil erosion. Sand content measurement methods require sampling of runoff before measurement, and the quality of the sampling directly affects the accuracy of the measurement results. The methods and devices currently used in runoff sampling are mainly barrel measurement and porous diversion devices, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14G01N1/10
Inventor 曹建生张万军
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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