Visual test device and method for soil arch effect of anti-slide pile
A technology of soil arch effect and test device, which is applied in the field of geotechnical engineering, can solve the problems that hinder the popularization and application of technology, increase the difficulty and cost of the test, and achieve the effect of simple and easy to learn test operation, simple structure and low cost
Inactive Publication Date: 2019-02-15
FUZHOU UNIV
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Problems solved by technology
However, the technology of synthetic transparent soil is still immature, and the model test needs to be equipped with corresponding optical observation system and digital image processing technology, etc., which undoubtedly increases the difficulty and cost of the test and hinders the popularization and application of this technology
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as Figure 1-2 As shown, a visual test device for the soil arch effect of anti-slide piles, including a model box, a push plate loading plate, a strip light, resin particles, and a digital camera. The model box is a transparent cube made of several pieces of tempered glass , the inside of the model box is fully paved with resin particles in a single layer, and the bottom of the model box is provided with anti-slide piles and retaining plates between the piles. There are scale stickers on the left and right sides of the inside of the model box. The plate is integrated with the top tempered glass of the model box through the screw and the nut. The top tempered glass is provided with a through hole for the screw to pass through. The lower end of the screw is connected and fixed with the push plate. Relying on the push plate, the movem...
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The invention relates to a visual test device and method for a soil arch effect of an anti-slide pile. The visual test device comprises a model box, a push plate loading plate, a strip-shaped lamp, resin particles and a digital camera; the model box is a transparent cube formed by splicing toughened glass; a single layer inside the model box is fully covered with the resin particles; anti-slide piles and an inter-pile soil retaining plate are arranged at the bottom inside the model box; scale paster is pasted on each of the left side and the right side inside the model box; a push plate is positioned on the upper side inside the mold box; through holes convenient for threaded rods to pass through are formed in the top toughened glass; the lower ends of the threaded rod are connected and fixed with the push plate, a nut which is in threaded fit with the corresponding threaded rod is arranged at the upper end of each of the threaded rods and is propped against the push plate; the rotarynut type threaded rods are moved to drive the push plate for loading displacement; the strip-shaped lamp is arranged above the mold box; the digital camera is placed on the front side of the model box, is used for shooting clear images during a test and obtains deformation pictures of the resin particles during the test with fixed focal length and fixed distance.
Description
technical field [0001] The invention relates to a visual test device and method for the soil arch effect of an anti-slide pile, belonging to the technical field of geotechnical engineering. Background technique [0002] The soil arch effect exists widely in the field of geotechnical engineering, and its essence is that the uneven displacement of the rock and soil mass under the action of external force causes the deflection of the internal principal stress, and transfers the load to the arch foot and the surrounding stable rock and soil layers. Practice has proved that the rational use of the soil arch effect can make the stress distribution of rock and soil develop in a direction that is beneficial to engineering. Especially in the reinforcement design of anti-sliding piles or pile-slab retaining walls, a reasonable understanding and use of the soil arch effect between piles and behind the piles can be used to determine the stability of the soil arch body, the reasonable pi...
Claims
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IPC IPC(8): G01N19/00G01N33/24
CPCG01N19/00G01N33/24
Inventor 豆红强张成武简文彬王浩樊秀峰俞仰航吴振祥
Owner FUZHOU UNIV