Soil slope water flow erosion resistance simulation test method and device

A soil slope and simulation test technology, which is applied in the direction of measuring devices, soil material testing, material inspection products, etc., can solve the problem that the slope soil is easily washed by water flow, etc., achieve good practical engineering application value, and avoid the limitation of water flow velocity Interfering and reducing the effect of water flow energy

Active Publication Date: 2017-01-04
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the existing indoor test device in the study of slope erosion, aiming at the rainy climate in the south, the characteristics of the slope soil being easily washed by water flow, to provide a soil slope with simple structure and convenient operation Simulation test device for anti-water erosion ability; quickly obtain various necessary data of slope erosion by simulating the hydraulic erosion environment of slope erosion

Method used

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  • Soil slope water flow erosion resistance simulation test method and device
  • Soil slope water flow erosion resistance simulation test method and device
  • Soil slope water flow erosion resistance simulation test method and device

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Embodiment 1

[0065] See attached figure 1 , 2 , 3, 4, the soil slope anti-water flow erosion simulation test device of the present invention includes a liftable slope simulation device and a flood erosion simulation device;

[0066] The liftable slope simulation device includes a base 1, a test cell device 2, and a gradient adjustment device 3, and the diffuse flow scouring simulation device is installed on the top of the test cell device, and the diffuse flow scouring simulation device includes a diffuse flow pipe 4, a diffuse flow Plate 5, water supply device, the diffuser plate 5 is tangent to the outer circle of the diffuser tube 4 and connected as a whole, the diffuser tube 4 is provided with a water outlet 6 and a water inlet connected with the water supply device, and the diffuser tube 4 passes through the bolt 8 is inserted in the track 9 arranged in the length direction of the test cell device 2, can slide along the direction of the track 9, and is positioned by the nut 10 screwe...

Embodiment 2

[0075] Test on embankment slope of K117+070—K117+130 bid section of Guangfo-Zhaozhou Expressway project site

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Abstract

The invention relates to a soil slope water flow erosion resistance simulation test method and device. The device comprises a liftable slope simulation device, a sheetflood scouring simulation device, a water and soil collecting device, a flow velocity determining device and a slope surface form camera device. According to the test method, the water flow is controlled, surface flow and seepage are formed, and sheetflood water, seepage water and sediment quantity formed by scouring slopes by sheetflood water are collected. The flow, the flow velocity, the erosion depth, the sand yield and the like of the water flow are measured quantitatively. Compacted soil is soaked in water until saturation for simulation, the efficiency of an indoor simulation test on slope scouring is improved, the test period is shortened, the test result proves the maximum depth of a slope erosion gully and the change rule of the sand yield with time, discloses the relation between the water flow erosion capacity of catchment behind slopes and the slope length, gradient and time and provides a basis for prediction of the water flow erosion scale and the need of slope protection and reinforcement. The device is simple in structure, convenient to operate and suitable for measurement of soil mechanics parameters of slope soil mass.

Description

technical field [0001] The invention discloses a soil slope anti-water flow erosion simulation test method and device, belonging to the technical field of soil mechanics parameter measurement. Background technique [0002] Scouring water damage is a common failure mode in slope engineering. With the continuous expansion of domestic engineering construction sites, the problem of erosion and water damage has become increasingly prominent. It has become a hot issue in slope engineering in the fields of highways, railways, and water conservancy in my country. . Slope erosion damage is mostly seen in artificially excavated or filled slopes. Because slope protection is often later than engineering construction, the slope surface is exposed to the natural environment for a long time and is affected by natural conditions; especially under heavy rainfall conditions, The water flow behind the slope converges to form a diffuse flow, and when a large amount of water flows down the slope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N5/00G01N21/85
CPCG01N5/00G01N21/85G01N33/24
Inventor 张锐郑健龙
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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