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Analog simulation test loading device with adjustable model size

A loading device, similar simulation technology, applied in the direction of measuring device, using stable tension/pressure test material strength, instruments, etc., can solve the problems of large size difference of similar models, expensive manufacturing cost, complicated operation, etc., to achieve controllability Effects that apply, avoid rigidity, and improve applicability

Pending Publication Date: 2019-11-15
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, for engineering bodies of different sizes or similarity ratios, the corresponding similar model sizes are quite different, and similar simulation test devices of different sizes are required for the test
[0003] "Loading device for similar simulation test frame" (CN201520667655.4), "Loading device for similar simulation test frame" (ZL200920032332.2) and "Loading device for similar simulation test frame" (CN201310605415.7). The tensioning mechanism, loading screw, loading spring and water tank and other structures exert vertical loads on similar models, and the horizontal loads are provided by the horizontal and lateral constraints of the model on the side plates of the test device, which cannot restore the real ground stress environment, and the device cannot Adjust pour dimensions for similar models
"A loadable similar simulation test device and its application method" (CN201610002446.7), "A high-rigidity prestressed loading frame structure for large-scale three-dimensional physical model tests" (CN201810106804.8) and "Three-dimensional loading for underground engineering model tests Guide frame device" (CN200910014636.0) three patented technologies realize the two-dimensional and three-dimensional controllable loading of large similar models, but the device cannot adjust the pouring size of similar models, it is difficult to adapt to the needs of different scale tests, and the manufacturing cost is expensive , the test operation is complicated, and it is difficult to popularize and apply
[0004] Based on the above analysis, the existing similar test loading devices have the problems of difficulty in adjusting the pouring size of similar models, uncontrollable application of horizontal and vertical loads, high manufacturing costs of the device, complicated operation and difficulty in popularization.

Method used

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  • Analog simulation test loading device with adjustable model size
  • Analog simulation test loading device with adjustable model size
  • Analog simulation test loading device with adjustable model size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A similar simulation test loading device with adjustable model size. The similar test loading device as figure 1 As shown, it consists of a base 1, a jack mounting frame 2, a loading system 3, a rear side baffle 4 and a front side baffle 5.

[0053] Such as figure 2 As shown, the base 1 is composed of a universal wheel 6 , an adjusting bolt 7 and a base box 8 . The base box 8 is a box structure formed by connecting a lower plate, a left side plate, a right side plate, a front side plate, a rear side plate and an upper plate. There is a strip hole near the left side of the upper plate, and the strip hole is set along the front and rear directions; the front side plate and the rear side plate are symmetrically fixed on the lower plate, and the front side plate and the rear side plate are located at the front end and the rear end corresponding to the strip hole . The two ends of the front side plate and the rear side plate are respectively fixed with the left side pla...

Embodiment 2

[0072] A similar simulation test loading device with adjustable model size. Except following technical parameter, all the other are identical with embodiment 1:

[0073] Such as figure 2 and image 3 As shown, the width of the lower plate, the width of the upper plate, the width of the left plate and the width of the right plate are equal, the length of the lower plate is equal to the sum of the length of the upper plate and 180-200mm, and the length b1 of the strip hole is the lower plate 0.5 to 0.62 times the width of the

[0074] Such as Figure 6 As shown, the width b2 of the right rectangular loading plate 34 is 0.32-0.35 times the length of the right rectangular loading plate 34, and the difference between the width b2 of the upper rectangular loading plate 26 and the right rectangular loading plate 34 is 6-8 mm.

[0075] The method of using this device is:

[0076] Step 1. Adjust the pouring space of similar models

[0077] Make the distance between the upper end...

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Abstract

The invention relates to an analog simulation test loading device with adjustable model size. The technical scheme is as follows: upper ends of a left support frame (9) and a right support frame (18)are fixed with an upper fixing frame (12) to form a jack mounting rack (2) fixed on an upper plate of a base (1); the structure of a loading system (3) is that a right loading plate (30) is connectedwith an upper loading plate (27) through a vertical connecting plate (32), and the upper end of a left baffle (22) is connected with the upper loading plate (27) through a horizontal connecting plate(25); a work end of a horizontal hydraulic jack (20) of a right support frame (18) is connected with the right loading plate (30), a vertical hydraulic jack (14) of the upper fixing frame (12) is fixedly connected with a jack mounting plate (11), a strip-type slider (10) fixed on the lower plane of the jack mounting plate (11) is movably mounted on a horizontal guide rail (29), and the left baffle(22) is movably mounted in guide grooves of two stand columns of the left support frame (9). The analog model casting space size is adjustable and load application is controllable.

Description

technical field [0001] The invention belongs to the technical field of similar simulation test devices. Specifically relates to a similar simulation test loading device with adjustable model size. Background technique [0002] Physical similarity test is a widely used and intuitive geotechnical engineering research method. Based on the principle of similarity, the geometric dimensions, physical and mechanical parameters and loads of the actual geotechnical engineering are reduced in a certain proportion, the corresponding similar materials are prepared and poured into a similar test model, the corresponding load conditions are applied, and the engineering body is carried out in combination with the excavation model and other work. Study on deformation and failure characteristics. At the same time, for engineering bodies of different sizes or similarity ratios, the corresponding similar models have large differences in size, and similar simulation test devices of different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/02
CPCG01N3/12G01N3/02
Inventor 叶义成王为琪刘洋刘晓云姚囝陈虎陈常钊江慧敏
Owner WUHAN UNIV OF SCI & TECH
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