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Method 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, simple structure and convenient management.

Inactive Publication Date: 2009-05-13
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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 for sampling runoff on slope
  • Method for sampling runoff on slope
  • Method for sampling runoff on slope

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Embodiment Construction

[0023] The slope runoff collection method of the present invention shown in the figure is to build a V-shaped diversion weir on a slope with a set area, and set a baffle plate 1 and a water diversion pipe 2 at the end, and set a slope runoff at a corresponding position below the water diversion pipe Acquisition device, the slope runoff acquisition device of the present invention is mainly divided into a hydraulic part and a rotating part, the hydraulic part is lifted by the pawl arm 4 driven by the water collecting tipping bucket and the recording pen 10 is set; the rotating part is driven by the spring spring to drive the ratchet disc 15 rotations, clockwork 13 drives the recording paper 12 to rotate. The main structure of the hydrodynamic part is composed of two water-collecting buckets 7 set opposite to each other and supported on the turning shaft. When the runoff reaches a certain amount, the water collecting tipping bucket 7 will turn over to the other side under the act...

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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 mountainous small watershed runoff collection system, which is mainly used in soil erosion and soil erosion tests under natural rainfall and artificial simulated rainfall conditions, and belongs to small water conservancy engineering equipment for water and soil conservation technology field. Background technique [0002] The runoff sediment content in soil erosion is one of the important parameters to measure soil erosion, and the determination of the sediment content in water flow is of great significance to soil erosion research and soil erosion control. The sediment concentration measurement method needs to sample the runoff before the measurement, and the quality of the sampling directly affects the accuracy of the measurement results. At present, the methods and devices used for runoff sampling are mainly the barrel method and the multi-hole diversion device, whi...

Claims

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Application Information

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Patent Type & Authority Patents(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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