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Geotechnical engineering supporting structure model test device and test method thereof

A model test device and a technology for supporting structures, which are applied in the testing of machine/structural components, measuring devices, and elasticity testing, etc., can solve the problems of less research on the optimization of supporting schemes and less research on optimization, and achieve easy The effect of grasping, simple structure and convenient operation

Inactive Publication Date: 2017-11-17
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the current indoor model test of support structures, there are three commonly used methods: numerical simulation comparison method, centrifuge model test, and shaking table model test. There are few studies on the optimization of different support modes, and there are fewer studies on the optimization of support schemes for slopes using traction slope model tests

Method used

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  • Geotechnical engineering supporting structure model test device and test method thereof
  • Geotechnical engineering supporting structure model test device and test method thereof
  • Geotechnical engineering supporting structure model test device and test method thereof

Examples

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Embodiment 1

[0044] A geotechnical engineering support structure model test device, including a model box 17, a support structure 14, a traction model system 18, a sliding belt model 5 and a measurement system, the model box 17 is filled with soil, and the model box 17 is provided with a sliding belt model 5, the front end of the sliding belt model 5 is connected with the traction model system 18, the front end of the sliding belt model 5 is connected with the traction model system 18, the model box 17 is a cuboid with top and front openings, and the supporting structure 14 wears The opening on the sliding belt model 5 is inserted into the soil, and the measurement system is installed on the support structure 14 and one side of the model box 17 .

[0045] The model box 17 also includes a base plate 3, the plexiglass plate 1 and the iron frame 2 are vertically installed on the base plate 3, the plexiglass plate 1 is installed on the inside of the iron frame 2, and the front end of the base p...

Embodiment 2

[0063] This embodiment is basically the same as Embodiment 1, the difference is:

[0064] In this embodiment, the method of laying piles for the support structure 14 is changed from straight-line piles to broken-line piles, that is, under the condition that the shape of the slope body and the traction speed of the motor are kept unchanged, it is necessary to study the traction-type landslide in the broken-line pile arrangement support structure. In the case of 14, the change law of slope stress-strain, surface shape and pressure, combined with Example 1, can be used to compare and study the evolution law of slope stress-strain under different pile arrangements, so as to achieve support under different pile arrangements. preferred purpose.

Embodiment 3

[0065] Embodiment 3: This embodiment is basically the same as Embodiment 1, the difference is:

[0066] In this embodiment, the support structure 14 is changed from pile support to anchor support 20, that is, under the condition that the shape of the slope body and the traction rate of the motor are kept constant, the situation of the traction landslide in the anchor support 20 is studied. The stress-strain, surface morphology, and pressure changes of the downslope, combined with Example 1, can be used to compare and study the stress-strain evolution of the slope under different support types, so as to achieve the purpose of support optimization under different support types.

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Abstract

The invention provides a geotechnical engineering supporting structure model test device and a test method thereof. The test device comprises a model box body in which a slide belt model is disposed. A traction model system is connected with the front of the slide belt model. The model box body further comprises a bottom plate. An organic glass plate and an iron frame are vertically arranged on the bottom plate. The organic glass plate is arranged inside the iron frame. A rotating shaft is arranged on the front end of the bottom plate. A motor rack is mounted on the rotating shaft. The front end of the slide belt model is fixed to a pincer-like clamp. The pincer-like clamp is connected with the rear end of a force sensor through a force transmission rod. The front end of the force sensor is connected with a force transmission rod penetrating a transmission case. A slowdown motor is connected with the transmission case through a force transmission rod and fixed to the motor rack. The geotechnical engineering supporting structure model test device can accurately measure different supporting structure displacements and stress strains in real time when a low-speed motor tows a predetermined slip surface so as to slide a landslide, and is simple in structure, good in adjustability, easy to operate, and easy to grasp.

Description

technical field [0001] The invention relates to a geotechnical engineering support structure model test device and a test method thereof, in particular to a model test device for optimizing support for traction landslide stability reinforcement by measuring the stress and strain of different support structures in real time. Background technique [0002] Slope support is a common construction technology, and the support is to ensure the safety of underground structure construction and the surrounding environment. For civil engineering, slope support is a basic construction process, and the quality of slope support affects the quality of civil engineering to a large extent, involving people's lives and property safety. [0003] Slope deformation is an inevitable problem in slope engineering. For this reason, people have done a lot of research work and accumulated rich engineering experience. Some problems are still common, which are mainly due to the complexity of the stress-...

Claims

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Application Information

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IPC IPC(8): G01M5/00
CPCG01M5/005
Inventor 姜彤雷家华刘远征李洪军吴琦王四巍薛雷
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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