Waste tire-soil vertical interface shear characteristic testing method

A waste tire and characteristic testing technology, which is applied in the field of reinforced soil engineering, can solve the problems that the interface mechanical property test of different specifications and sizes cannot be applied, cannot be realized, and the vertical interface shear test cannot be realized.

Pending Publication Date: 2022-03-11
CHANGSHA UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few mechanical testing devices for the entire waste tire reinforced soil and the waste tire-soil interface, and most of them intercept a certain tire piece for shearing test, which is far from the actual application situation, and it is bound to fail to reflect the whole waste tire. Shear Mechanical Properties of Tire-Soil Cylinder
[0004] Some researchers have further developed a mechanical testing device that can involve the entire tire interface. However, due to the limited function of the device itself, only the shear test of the horizontal interface can be realized, and neither the shear test of the vertical interface nor the horizontal interface can be realized. The test of the influence of earth pressure on the mechanical properties of the reinforcement-soil vertical interface at different depths is not applicable to the test of the interface mechanical properties of different sizes (tire diameter and tread height, etc.)

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
  • Waste tire-soil vertical interface shear characteristic testing method
  • Waste tire-soil vertical interface shear characteristic testing method
  • Waste tire-soil vertical interface shear characteristic testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0065] According to the above process, first simulate the buried depth of 15 meters, apply a vertical load of 300kPa in step S5, the confining pressure in the first test is 45.1kPa, the reading of the stress sensor is 28.4kPa, and the confining pressure in the second test is 60.5 kPa, the reading of the stress sensor is 34.1kPa, and the following binary linear equations are established:

[0066]

[0067] Solutions have to: c=12kPa. Therefore, the shear mechanical parameters of the waste tire-soil vertical interface at a buried depth of 15m are: the cohesion force is 12kPa, and the internal friction angle is 20°.

[0068] Then in step S5, the vertical load is changed to 100kPa, that is, the simulated buried depth is 5 meters, the above process is repeated and the shear mechanics parameters corresponding to the waste tire-soil vertical interface are calculated as follows: the cohesion is 11kPa, and the internal friction angle is 15 °.

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
Cohesionaaaaaaaaaa
Angle of internal frictionaaaaaaaaaa
Cohesionaaaaaaaaaa
Login to view more

Abstract

The invention discloses a waste tire-soil vertical interface shear characteristic test method, which comprises the following steps of: firstly, sequentially installing a servo control system, a sample system, a confining pressure loading system and a data acquisition system, filling a waste tire with a soil sample II, then installing the waste tire on a push-pull actuating rod, and loading the soil sample II on the push-pull actuating rod; a confining pressure air bag and a soil sample I are sequentially and annularly arranged in the annular shearing box from outside to inside, and the radial inner side face of the soil sample I makes contact with the outer side face of the waste tire; finally, horizontal and vertical loads are provided for the waste tire-soil vertical interface through a confining pressure air bag and a top spiral disc respectively, a hydraulic servo motor is started to apply stress to a push-pull actuating rod for a shear test, and shear mechanical parameters are calculated according to stress data obtained under different load conditions. The method provided by the invention is suitable for carrying out shear test on the waste tire-soil vertical interface under different burial depth and size conditions.

Description

technical field [0001] The invention relates to the technical field of reinforced soil engineering, in particular to a method for testing the shear characteristics of a waste tire-soil vertical interface. Background technique [0002] In recent years, with the continuous growth of automobile production, the number of waste tires that have been eliminated has also increased dramatically year by year. The accumulation of a large number of waste tires not only occupies land, but also pollutes the natural environment. Improper handling of them will bring serious environmental problems and harm The surrounding residents are in good health. Therefore, how to recycle waste tires scientifically, environmentally friendly, economically, safely and efficiently is a major practical problem to be solved urgently. At present, waste tires have been used in reinforced soil projects such as strengthening rock and soil slopes, retaining walls, embankments, and weak foundations due to their g...

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
IPC IPC(8): G01N3/24
CPCG01N3/24G01N2203/0003G01N2203/0025G01N2203/0048G01N2203/0075G01N2203/0676G01N2203/0682
Inventor 蒋建清罗世林常锦雷鸣张锐匡希龙张学文艾丽菲拉·艾尔肯种霖霖
Owner CHANGSHA UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products