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Loading head-replaceable load tester for calcareous sand

A loading head and tester technology, applied in the direction of applying stable tension/pressure to test the strength of materials, instruments, measuring devices, etc., can solve the problems of inaccurate measurement of calcareous sand stress and strain, etc., and achieve high accuracy and simple operation Effect

Pending Publication Date: 2020-03-13
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing load tester cannot accurately measure the stress-strain relationship of calcareous sand, the present invention provides a replaceable loading head load tester capable of measuring the stress-strain relationship of calcareous sand

Method used

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  • Loading head-replaceable load tester for calcareous sand
  • Loading head-replaceable load tester for calcareous sand

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Experimental program
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Embodiment 1

[0025] A load tester for calcareous sand with a replaceable loading head, including a support mechanism, a loading mechanism and a detection mechanism;

[0026] Described support mechanism comprises lower platform 1, upper platform 2 and left vertical beam 3-1 and right vertical beam 3-2 and rear vertical beam 3-3, described left vertical beam 3-1, right vertical beam 3- 2 and an end of the rear vertical beam 3-3 are fixedly connected with the upper platform 2 respectively, and the other ends of the left vertical beam 3-1, the right vertical beam 3-2 and the rear vertical beam 3-3 are respectively connected with the The lower platform 1 described above is fixedly connected;

[0027] The loading mechanism includes a jack 8, a lower loading head 9 and an upper loading head 10, the upper loading head and the lower loading head are point loading heads, and the lower loading head 9 is detachably and fixedly installed on the On the top plate of the jack 8, the lower loading head 9 ...

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Abstract

The invention discloses a loading head-replaceable load tester for calcareous sand. The supporting mechanism comprises a lower platform, an upper platform, a left vertical beam, a right vertical beamand a rear vertical beam, wherein one end of the left vertical beam, one end of the right vertical beam and one end of the rear vertical beam are fixedly connected with the upper platform, and the other end of the left vertical beam, the other end of the right vertical beam and the other end of the rear vertical beam are fixedly connected with the lower platform. The loading mechanism comprises ajack, a lower loading head and an upper loading head, wherein the lower loading head is detachably and fixedly installed on the jack top disc, and the upper loading head is detachably and fixedly installed on the upper platform. The detection mechanism comprises a pressure sensor, a first CT scanner, a second CT scanner, a third CT scanner and a control console. The control console forms a closedcircuit with a liquid crystal display, a pressure sensor, the first CT scanner, the second CT scanner and the third CT scanner through an external power supply.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering tests, and in particular relates to a replaceable loading head type load tester for calcareous sand. Background technique [0002] Reclamation and island construction usually extract existing materials directly from the surrounding sea area for island construction. Calcareous sand is mostly distributed in the surrounding sea area. Determining the strength of calcareous sand itself is a key step, and the particle strength has a great influence on the macroscopic mechanical properties of granular materials. However, the calcareous sand particles are often irregular in shape, and the existing load testing equipment cannot accurately display the mechanical properties of the material from many aspects. Therefore, a replaceable loading head load testing instrument is proposed to test Its particle strength, this patented invention obtains more stress-strain curves of calcareous sand under differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/06G01N23/00G01N15/08
CPCG01N3/08G01N3/06G01N23/00G01N15/088
Inventor 王哲吕润东许四法陈振寰吴雪辉冯伟皓王启湘付亚君崔涵晟吴淑伟翁鹤森任康楼可栋陈东邱杭鹰章韬
Owner ZHEJIANG UNIV OF TECH
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