Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-balancing type true three-dimensional loading model testing bench frame with sliding wall

A self-balancing, three-dimensional loading technology, applied in the direction of instruments, measuring forces, measuring devices, etc., can solve the problems of not reducing the friction force very much, the model depth is large, and the friction coefficient is high, so as to avoid adverse effects and impact resistance Good toughness and strong corrosion resistance

Inactive Publication Date: 2009-01-14
SHANDONG UNIV
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (1) It is difficult to realize the model test research of underground caverns under the condition of large buried depth and high ground stress
[0009] (2) The depth of the model is large, and the cavern cannot realize manual layered excavation, grouting and anchoring, installation of convergence measuring points, pre-tightening of anchor cables, etc.
[0010] (3) The cracking phenomenon and development process of the surrounding rock cannot be observed during the test
[0011] (4) The frictional resistance between the loading system and the model body cannot be significantly reduced
This approach reduces the friction between the loading system and the model body to a certain extent, and has played a certain role in the test. However, the degree of reducing friction is not very large, and the friction coefficient is too high (up to 0.1). The problem of friction still exists and has become a major problem to be solved in model tests

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-balancing type true three-dimensional loading model testing bench frame with sliding wall
  • Self-balancing type true three-dimensional loading model testing bench frame with sliding wall
  • Self-balancing type true three-dimensional loading model testing bench frame with sliding wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0057] Figure 1-Figure 5 Among them, the sliding wall 17 is arranged on the outside of the model body, wherein, the upper, lower, left, and right sides of the sliding wall 17 are respectively provided with pressure-bearing plates 10, the front and rear sides of the sliding wall 17 are respectively provided with structural walls 6, and the outside of the pressure-bearing plate 10 and The outside of the structural wall 6 behind the sliding wall 17 is equipped with a hydraulic loading device, and the other end of the hydraulic loading device outside the pressure plate 10 is fixed on the door-type reaction frame 1; A front beam 8 and a rear beam 9 are respectively provided, and the front beam 8 and the rear beam 9 are connected by a tie rod 14, and the rear beam 9 is arranged on a support frame 16 on the ground; around the position of the cavern 11 on the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Rockwell hardnessaaaaaaaaaa
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The invention relates to a test bench of a true three-dimensional self-balancing loading model with a slide wall, the test bench has a loading system that is arranged outside a structural wall and comprises a door-typed reaction frame, the structural wall and the slide wall, the door-typed reaction frame can realize the loading of the upper, lower, left and right surfaces of a model body, only a hydraulic loading device is arranged in the outer side of the back structural wall in the forward and backward direction of the model body, and a plurality of reaction cross beams and a lateral pull rod can realize the symmetrically self-balancing loading in the forward and backward direction. The slide wall is arranged between the model body and the structural wall, and a plurality of bar observing windows are arranged surrounding the position of a perforated chamber on the structural wall. The test bench has the advantages that the test bench can realize three-dimensional graded loading, has convenient operations of excavation and shoring, and can remarkably reduce the surface friction force of the model body when loading, etc.

Description

technical field [0001] The invention relates to a geomechanics model test device, in particular to a self-balancing true three-dimensional loading model test bench device with a sliding wall. Background technique [0002] At present, the true three-dimensional loading systems that can be realized at home and abroad are mostly uniform loading systems without gradient changes, mainly because it is very difficult to implement step-by-step loading around the model body. In the geomechanics model test, there is a large friction force between the loading system and the contact surfaces of the model body, which will reduce the loading effect of the loading system and affect the overall deformation characteristics of the model body and the displacement and stress changes of internal measuring points. has a huge impact. How to achieve a reasonable true three-dimensional loading system and reduce the friction between the loading system and the contact surfaces of the model body has a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/00
Inventor 朱维申李术才张磊辛小丽张鲁春
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com