Experimental device and method for simulating multi-anchor coupling effect

A technology of experimental device and experimental method, which is applied in the direction of measuring device, using stable tension/compression to test the strength of materials, instruments, etc., can solve the problems that cannot accurately reflect the real influence of anchor rods on the surrounding soil, and achieve the benefit of Scientific research efficiency, disturbance reduction, and high precision effects

Active Publication Date: 2020-12-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the deformation and displacement of the anchor rod on the surrounding soil are simplified to plane strain in the prior art, which cannot accurately reflect the real influence of the anchor rod on the surrounding soil, this disclosure proposes a method for simulating the coupling effect of multiple anchors. The experimental device and method can directly simulate the pulling of the anchor during the construction process and observe the soil, which can accurately reflect the real impact of the pulling of the anchor on the surrounding soil

Method used

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  • Experimental device and method for simulating multi-anchor coupling effect
  • Experimental device and method for simulating multi-anchor coupling effect
  • Experimental device and method for simulating multi-anchor coupling effect

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Experimental program
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Embodiment 1

[0050] Such as figure 1 As shown, the present embodiment provides a multi-anchor coupling experimental device, including a transparent model box 3, including a plurality of anchors parallel on the same vertical plane and inclined relative to the edge of the model box in the transparent model box 3. Rod 6; also includes an arc-shaped perforated strip 4 and an external loading device, the arc-shaped perforated strip 4 is provided with a plurality of perforations along the arc direction, and the arc of the arc-shaped perforated strip 4 is A part of a standard circle, and the arc is greater than or equal to 180 degrees, and the opening of the arc-shaped opening strip 4 faces the transparent model box 3 . Such as Figure 6 As shown, the anchor rod 6 is connected to the external loading device through the opening through the steel strand 5, and the external loading device controls the shrinkage of the steel strand; specifically, it is controlled by a pulley, that is, the upper and ...

Embodiment 2

[0057] This embodiment provides an experimental method for multi-anchor coupling, which is carried out in the experimental device for multi-anchor coupling described in Example 1, including the following steps:

[0058] 1) Use an oil-based pen to draw several uniform rectangular points on the glass plate 9 outside the model box for later image processing.

[0059] 2) Place the prefabricated backing plate with the same size as the bottom groove 8 of the model box in the bottom groove 8 of the model box, then place the movable baffle plate 7 of the transparent model box 3 according to the calculated size, and place the arc The strip base 18 of the shaped opening strip 4 is placed in the center of the movable baffle 7, aligned with the square opening, and fixed with bolts and nuts, and the height adjustment frame 16 on both sides of the movable baffle 7 is fine-tuned to make the overlap Adjust the bar 15 to the predetermined position, fill the soil in the transparent model box 3,...

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Abstract

The invention relates to the field of geotechnical engineering, and particularly provides an experimental device and method for simulating a multi-anchor coupling effect. The experimental device for simulating the multi-anchor coupling effect comprises a transparent model box, wherein a plurality of anchor rods which are parallel on the same vertical plane and are obliquely arranged relative to the edge of the model box are arranged in the transparent model box; The experimental device further comprises an arc-shaped perforated strip and an external loading device, wherein a plurality of openholes are formed in the arc-shaped perforated strip in the arc direction, the anchor rod body penetrates through the open holes through a steel strand to be connected with the external loading device,and the external loading device controls the steel strand to contract. The experimental device also comprises a transmission light source and a camera. The problem that in the prior art, the influence of deformation and displacement of an anchor rod on surrounding soil is simplified into plane strain, and the real influence of the anchor rod on the surrounding soil cannot be accurately reflectedis solved.

Description

technical field [0001] The disclosure relates to the field of geotechnical engineering, and specifically provides an experimental device and method for simulating the coupling effect of multiple anchors. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] For a long time, in order to solve the problem of high slope support, various retaining structures have emerged. Among them, buttresses, anchor rods, anchor plates, and reinforced soil retaining walls are commonly used retaining structures in roadbeds / cuttings. Type of structure. Among them, the basic structural forms of anchor rods, anchor plates, and reinforced earth retaining walls are to install anchor rods / anchor anchor plates / tension bars at the back of the wall, and use the tension provided by anchor rods and other structures to balance the sides. The downward force generated by slope slipp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/02G01N3/08G01N2203/0017
Inventor 张宏博王昊吴建清刘明朋宋修广庄培芝
Owner SHANDONG UNIV
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