Portable field measurement device for slope runoff erosion
A technology of slope runoff and on-site measurement, applied in soil material testing, material inspection products, etc., can solve the problems of long observation period, difficult short-term fixed-point rapid observation, easy loss of facilities, etc., to achieve the effect of convenient transportation
Inactive Publication Date: 2015-07-15
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology
[0002] At present, slope erosion observation methods include outdoor runoff field observation, combined with artificial rainfall simulation system observation, drilling steel drill into the slope for observation, or using geographic information system for satellite image interpretation and analysis. These methods generally have a long observation period and the experimental facilities Need to be placed in the field for a long time, the facilities are easy to lose, or the observation range is too large, it is difficult to apply to short-term fixed-point rapid observation in a small area
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[0051] Such as Figure 1 to Figure 13 As shown, the area where the projected area of the ground is measured is 300mm×300mm is taken as an example.
[0052] The container 3 is made of transparent glass fiber reinforced plastic material, the container 3 is closed up and down, a piece of ordinary tape is pasted on one side of the side wall as the water level scale 4, a round hole with a diameter of 50mm is opened on the upper part, and a water outlet hole with a diameter of 10mm is opened on the lower part of the side wall, and the water outlet is installed outside A valve 5, using a rubber plug 2 with a hole in the middle to plug the upper opening, the hollow tube 1 passes through the rubber plug, the bottom of the hollow tube is flush with the upper edge of the side opening of the container 3, the valve 5 adjusts the outlet flow, and the three-way Valve 15 switches the alternate water supply between the two Marriott bottles. Common plastic hoses are used to connect the valve...
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The invention discloses a portable field measurement device for slope runoff erosion. The portable field measurement device comprises a water supply system, a horizontal regulating system and a ground collecting system, wherein two Mariotte flashes made of transparent glass fiber reinforced plastic material are adopted in the water supply system and are controlled by a three-way valve to alternately supply water; a water supply hose at an outlet of the three-way valve is connected with a T-shaped pipe to supply water to the ground collecting system. Two ends of the T-shaped pipe are sealed, one side of the pipe wall at the front end is uniformly provided with a row of small holes, and water flows out of the small holes and enters a ground testing system. The ground testing system comprises two side flow limiting plates as side boundaries, a front baffle, a runoff collecting tank and a measuring cylinder, and the side flow limiting plates are semi-embedded into the ground. Water flowing out of the small holes in the T-shaped pipe flows downwards along a slope under the limit of the side flow limiting plates and is introduced to the measuring cylinder through a water discharging hose after being collected by the runoff collecting tank. The portable field measurement device is used for the field measurement simulation of slope runoff to the erosion of slope soil and is free of additional water supply power.
Description
technical field [0001] The invention relates to a slope erosion observation device, in particular to a portable device for on-the-spot measurement of slope runoff erosion. Background technique [0002] At present, slope erosion observation methods include outdoor runoff field observation, combined with artificial rainfall simulation system observation, drilling steel drill into the slope for observation, or using geographic information system for satellite image interpretation and analysis. These methods generally have a long observation period and the experimental facilities It needs to be placed in the field for a long time, the facilities are easily lost, or the observation range is too large, so it is difficult to apply to short-term fixed-point rapid observation in a small area. Contents of the invention [0003] The purpose of the present invention is to provide a portable device for on-the-spot measurement of slope runoff erosion that is convenient for transportatio...
Claims
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IPC IPC(8): G01N33/24
Inventor 贺康宁芦新建史常青杨海龙胡兴波董梅王世雷曹广月
Owner BEIJING FORESTRY UNIVERSITY