Water erosion characteristic testing device and method for geotextile slope protection

A geotextile and hydraulic erosion technology, applied in the field of geotextile slope protection, can solve the problems of the anti-erosion erosion ability of geotextile slope protection and the lack of research on slope damage characteristics, achieve simple and efficient equipment and experimental process, ensure uniform and stable outflow, Easy-to-use effects

Inactive Publication Date: 2016-04-20
SHANDONG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the research on geotextile slope protection at home and abroad focuses on the anti-erosion ability of the slope after the vegetation grows, but there are few studies on the anti-erosion ability of the geotextile slope protection and the characteristics of slope damage before the vegetation grows. There is no special research system in China, and the simulation is carried out for the test of the hydraulic erosion characteristics of geotextile slope protection

Method used

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  • Water erosion characteristic testing device and method for geotextile slope protection
  • Water erosion characteristic testing device and method for geotextile slope protection
  • Water erosion characteristic testing device and method for geotextile slope protection

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Embodiment 1

[0039] like Figure 1-4 shown.

[0040] A kind of geotextile slope protection hydro-erosion characteristic test device, comprises reservoir 1 and the water tank 10 that is inclined to arrange; Said reservoir 1 is provided with submersible pump 2 (choose QX-3-30-1.1 type submersible pump as water supply device ); the top of the water tank 10 is provided with a non-porous baffle, a large hole baffle and a small hole baffle successively from top to bottom, and a plurality of holes are all arranged on the large hole baffle and the small hole baffle; The plate, the small hole baffle plate, the non-porous baffle plate and the side wall of the water tank jointly form a steady flow tank 9; the water outlet of the submersible pump 2 communicates with the steady flow tank 9. Three thin steel baffles (no-hole baffles, large-hole baffles and small-hole baffles) are arranged in sequence in the flow stabilization tank 9 to play the role of buffering and stabilizing the water flow; The cir...

Embodiment 2

[0042]According to the test device for hydraulic erosion characteristics of geotextile slope protection described in embodiment 1, the difference is that the test device for hydraulic erosion characteristics of geotextile slope protection also includes an inclination adjustment system, and the inclination adjustment system includes a hydraulic cylinder 7 and a steel wire rope; The free end of hydraulic oil cylinder 7 is provided with pulley 11; The advantage of the design here is that the characteristics of the movable pulley are utilized, the rising distance of the water tank 10 is twice the rising distance of the free end of the hydraulic cylinder, the structure is more compact, and the control is precise. When working, the free end of the hydraulic cylinder 7 drives the steel wire rope on the pulley 11 when it goes up and down, and the steel wire rope pulls the water tank 10 to move up and down, simulating slopes at different angles.

Embodiment 3

[0044] According to the geotextile slope protection hydraulic erosion characteristic test device described in embodiment 2, the difference is that the inclination adjustment system also includes a horizontal tie rod 13, and the horizontal tie rod 13 is arranged on the free end of the hydraulic cylinder 7; the number of pulleys 11 is two One, two pulleys 11 are arranged on the two ends of horizontal tie rod 13, and the free end of wire rope is walked around pulley 11 and is respectively arranged on the end both sides of water tank 10; The length of the horizontal tie rod 13 is greater than the width of the water tank 10, which can improve the stability of the water tank 10.

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Abstract

The invention relates to a water erosion characteristic testing device and method for geotextile slope protection. The device comprises a reservoir and an inclined water tank, wherein a submersible pump is arranged in the reservoir; a nonporous baffle plate, a large-hole baffle plate and a small-hole baffle plate are sequentially arranged at the top end of the water tank from top to bottom in the height direction, and multiple holes are formed in the large-hole baffle plate and the small-hole baffle plate; the large-hole baffle plate, the small-hole baffle plate, the nonporous baffle plate and the sidewall of the water tank enclose a flow stabilizing tank which is communicated with a water outlet of the submersible pump. According to the water erosion characteristic testing device for geotextile slope protection, a practical engineering condition is simulated through a model, and analysis on an action mechanism and failure signature of a geotextile in slope protection engineering and study on the interaction relation of influencing factors are made from an erosion process to guide future slope protection and optimization of a slope design.

Description

technical field [0001] The invention relates to a test device and method for hydraulic erosion characteristics of geotextile slope protection, and belongs to the technical field of geotextile slope protection. Background technique [0002] With the rapid development of the national economy, my country is paying more and more attention to the protection of ecological and environmental protection while vigorously developing the economy. The problems that need to be solved for artificial slopes include slope reinforcement and embankment protection, waterproof and soil loss, etc. The current artificial slope protection project Start to choose ecological slope protection technology to replace the traditional slope protection technology with poor durability and insignificant ecological effect. Among them, the composite ecological slope protection technology that combines geotextiles such as geocells and three-dimensional geonet mats with vegetation is the most widely used and has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/567
Inventor 王广月李炯
Owner SHANDONG UNIV
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