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

Soil sample maintenance mold for direct shear test of frozen soil

A shear test, a direct technology, applied in the application of stable shear force to test the strength of materials, the preparation of test samples, sampling and other directions, can solve the problems of test accuracy, slow progress, long time, etc., to improve the manufacturing process The effect of sample efficiency, convenient operation and simple structure

Inactive Publication Date: 2018-08-10
ANHUI UNIV OF SCI & TECH
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method requires a large number of shear boxes for soil sample curing or repeated curing tests. Long time, slow progress and different curing conditions will affect the accuracy of the test.

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
  • Soil sample maintenance mold for direct shear test of frozen soil
  • Soil sample maintenance mold for direct shear test of frozen soil
  • Soil sample maintenance mold for direct shear test of frozen soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] In order to make the technical means realized by the present invention, the purpose achieved and the effect easy to understand, the present invention will be further elaborated below through specific examples and illustrations.

[0014] see Figure 1 to Figure 3 , The present invention provides a curing mold for direct shear test of frozen soil, including outer box, fastening bolts, side molds, bottom mold, backing plate and so on. When sample preparation is required, first assemble the mold: disassemble the clamping plate on the left side of the outer box, surround the bottom mold with two mated side molds, apply Vaseline on the surface and align them in the outer box, install the left clamping plate, and the right Put in the backing plate and fix it with fastening bolts. Then push in the soil sample: After sampling the ring knife, place it in the reserved annular groove on the upper part of the side mold, and use a bulldozer to push the soil sample in the ring knife ...

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a soil sample maintenance mold for direct shear test of frozen soil, and belongs to the field of a frozen soil mechanical test device. The soil sample maintenance mold mainly consists of an outer box, a fastening bolt, side molds, a bottom mold, and a liner plate, and is characterized in that the outer box fixes the side molds, the bottom mold and the liner plate by virtue of the fastening bolt. The two involutory side molds form a hollow cube structure of a cylinder body, and an annular groove is formed on the upper portion of each side mold and used for fixing a cutting ring. When in use, the mold is firstly assembled, and then a soil sample in the cutting ring is pushed into the mold to be maintained by using a soil pusher. By adopting the design, a plurality of soil samples under a same maintenance condition can be maintained together, so that convenience and simplicity can be realized, the sample production efficiency is greatly increased, and the influenceof an error of the maintenance condition on the test accuracy in the maintenance process can be avoided.

Description

technical field [0001] The invention relates to a maintenance mold, in particular to a maintenance mold used for direct shearing tests of frozen soil, and belongs to the technical field of frozen soil mechanics tests. Background technique [0002] With the development of underground engineering construction to deeper and more difficult conditions, freezing method technology is widely used in mines, urban subways, tunnels, deep foundation pits and bridge construction because of its safety, controllability and economy. Before the construction of the freezing method, the mechanical property experiment of frozen soil must be carried out, and the direct shear test of frozen soil is one of the important contents. [0003] In the direct shear test of frozen soil, the soil samples were placed in a low-temperature box for freezing and curing. Lateral frost heave of soil samples often occurs during curing under unconfined conditions, so the curing is usually carried out directly in t...

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): G01N1/36G01N3/24
CPCG01N1/36G01N3/24G01N2001/366
Inventor 连梦林姚兆明杨林
Owner ANHUI UNIV OF SCI & TECH
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