Transparent shearing model box for vibration table test

A shear model box and shaking table test technology, applied in the field of civil engineering, can solve problems such as inability to achieve

Active Publication Date: 2019-08-16
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, existing technol

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  • Transparent shearing model box for vibration table test
  • Transparent shearing model box for vibration table test
  • Transparent shearing model box for vibration table test

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Embodiment 1

[0044] The shear model box in this embodiment is mainly used in the centrifuge shaking table test, and its conventional test equipment layout can be simply summarized as follows: the centrifuge is equipped with a shaking table, and the shaking table is equipped with a model box. The main function of the centrifuge is to generate supergravity through high-speed rotation to restore the stress loss of rock and soil due to scale reduction (for example, if the centrifuge produces 100g of supergravity, a model with a size of 1m can simulate a prototype model with a size of 100m. That is, the simulated field size reaches 100m). The main function of the vibration table is: the shear model box is placed on the vibration table, and the vibration table inputs vibration to the shear model box through its own vibration to simulate the earthquake. The main function of the model box is: the carrier of the test soil, which is used to pack the test soil.

[0045] As an important part of the c...

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Abstract

The invention discloses a transparent shearing model box for a vibration table test, which comprises a permeable base and a box body with a layered structure, wherein the box body comprises a plurality of open type shearing rings and at least one reaction frame, the plurality of open type shearing rings and at least one reaction frame are sequentially superposed on the permeable base, the open type shearing ring at the lowest layer is fixedly connected with the permeable base, and when the adjacent open type shearing rings are subjected to shearing force, the adjacent open type shearing ringscan be mutually staggered to form a free field boundary condition of a seismic shearing model test; at the side opening formed by superposing the plurality of open type shearing rings, two sides of the reaction frame are respectively clamped with the above-mentioned open type shearing rings through clamping structures, and the clamping structures are used for limiting the displacement of the above-mentioned open type shearing rings in the direction vertical to the reaction frame while allowing the displacement of the open type shearing rings in the direction parallel to the reaction frame; anda transparent window for detecting the condition of the side surface of the test sample under the action of the alternating shearing force is arranged on the reaction frame. The transparent shearingmodel box for the vibration table test can more accurately observe and judge the condition of the shearing force applied to the sample.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a transparent shear model box used for shaking table tests of underground structures. Background technique [0002] The current global earthquake disaster has entered a period of high incidence. The 2008 Wenchuan earthquake, the 2011 East Japan earthquake, the 2013 Ya’an earthquake, the 2015 Nepal earthquake, and the 2018 Indonesia earthquake have all caused huge casualties and economic losses. Come hit hard. The "National Comprehensive Disaster Prevention and Mitigation Plan (2016-2020)" pointed out that the current destructive earthquakes are still in a period of frequent occurrence, the foundation of disaster prevention, mitigation and relief is still weak, and the tasks of international cooperation in disaster prevention, mitigation and relief continue to increase. The world is facing a severe situation of earthquake resistance, and it is urgent to resist earthquakes in an a...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 周燕国周鑫辉夏鹏刘凯田雨
Owner ZHEJIANG UNIV
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