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Universal surface-shaped material tension, strain and deflection testing device and testing method

A testing device, a surface-like technology, applied in the direction of measuring devices, using stable tension/pressure to test the strength of materials, analyzing materials, etc. Ease of data comparison

Pending Publication Date: 2018-07-17
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method sets the planar material and the test column in the form of hinge constraints, which obviously cannot truly reflect the actual situation on site

Method used

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  • Universal surface-shaped material tension, strain and deflection testing device and testing method
  • Universal surface-shaped material tension, strain and deflection testing device and testing method
  • Universal surface-shaped material tension, strain and deflection testing device and testing method

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Embodiment Construction

[0047] Such as figure 1 As shown, a general planar material tension, strain and deflection testing device includes a pressure loading system, a sample cap, a prestress loading system, a test and a data acquisition system; the pressure loading system consists of a base 1, a reaction column 4. The crossbeam 5, the loading head 6 and the servo feeding device A7 are composed, the reaction column 4 is fixedly connected with the base 1, the crossbeam 5 is erected on the two reaction columns 4, and fixed by bolts, The servo feeding device A7 is fixed in the middle of the beam 5, one end of the pressure sensor 8 is fixedly connected to the servo feeding device A7, and the other end is fixedly connected to the loading head 6 to measure the loading The pressure of the head 6; the sample platform is divided into two types: a fixed sample platform 14 and a hinged sample platform 18; the prestressed loading system includes a servo feeding device B 11, a tension sensor 12 and a loading plat...

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Abstract

The invention discloses a universal surface-shaped material tension, strain and deflection testing device which comprises a pressure loading system, a test sample holding platform, a pre-stress loading system and a testing and data acquisition system, wherein the pressure loading system consists of a counterforce vertical column, a transverse beam, a base, a servo feeding device A and a loading head; the pre-stress loading system comprises a servo feeding device B, a tension sensor and a loading plate; the testing system comprises a pressure sensor, a displacement sensor and a laser displacement meter; the data acquisition system comprises a data acquirer and a computer. A prepared test sample is placed on the test sample holding platform, pre-stress and pressure are respectively exerted to the surface-shaped material test sample through the pre-stress loading system and the pressure loading system, data tested by different sensors are read by the testing and data acquisition system, and the pressure, the displacement and the deflection of the surface-shaped material test sample are calculated. By adopting the testing device, experiment testing on surface-shaped materials of different materials and different constraint conditions can be met.

Description

technical field [0001] The invention relates to a general planar material tension, strain and deflection test device, which belongs to the technical field of geotechnical engineering. Background technique [0002] In foundation pit support technology and slope protection system, soil nail wall support technology and anchor shotcrete support technology are one of the commonly used support technologies. Whether it is soil nail wall support technology or anchor shotcrete support technology, an important part of it is the support surface. The so-called supporting surface layer is a rigid or flexible protective surface set in foundation pit and slope protection to prevent local damage to the slope surface. At present, in the soil nail wall support system and anchor shotcrete support system, the surface layer is mostly concrete sprayed surface materials, steel wire mesh, and geosynthetic surface materials, such as geogrids and geotextiles. [0003] The surface layer protects the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00G01N3/08
CPCG01N3/00G01N3/08G01N2203/0282G01N2203/0017G01N2203/0019
Inventor 孙涛孙彦峰刘强高晓颖周飞羽
Owner SHANDONG UNIV OF SCI & TECH
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