Apparatus for testing compression strength of sea ice

A technology of compressive strength and clamping, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of easy failure, poor equipment matching, complicated test preparation, etc., to achieve improved accuracy, compact connection, The effect of simple system structure

Inactive Publication Date: 2015-12-02
DALIAN UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] At present, most sea ice compression devices are composed of dispersed equipment. Each equipment needs to be connected and debugged when in use, an

Method used

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  • Apparatus for testing compression strength of sea ice
  • Apparatus for testing compression strength of sea ice
  • Apparatus for testing compression strength of sea ice

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Embodiment Construction

[0022] A device for testing the compressive strength of sea ice. The pressure test includes a uniaxial compression test method and a confining compression test method. The clamping methods for the sea ice sample 10 include the sea ice sample uniaxial compression clamping method and the sea ice The sample lateral compression clamping method, the sea ice sample 10 adopts a hexahedron, the cross section is square, and the height dimension direction is guaranteed to be 2.5 times the width. The sea ice pressure testing machine 12 is guaranteed to be placed on the level ground during the test. The sea ice pressure testing machine drives the movable beam 2 to move vertically up and down through the loading system. The maximum compression force of the sea ice pressure testing machine is 50KN. The sea ice collected on site was cut into the sea ice sample 10 required for the experiment.

[0023] The sea ice sample 10 clamping process is as follows: the upper and lower ends of the sea ic...

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Abstract

An apparatus for testing the compression strength of sea ice comprises a sea ice pressure testing machine, a loading system and a data acquisition system. Pressure test comprises sea ice sample uniaxial compression test and sea ice sample confined compression test. Compared with apparatuses in the prior art, the apparatus created in the invention has the advantages of simple system structure, wireless remote control of loading, compact connection of all system mechanisms, avoiding of unstable factors of split type equipment in the loading and collecting process, and improvement of the test result accuracy; and the apparatus allows the temperature of the above sea ice sample to be obtained when the compression strength of the sea ice is tested, is helpful for further knowing interaction mechanisms and influence factors of the sea ice and an offshore structure, and facilities construction of the offshore structure with strong ice resistance.

Description

technical field [0001] The invention belongs to the field of marine engineering and relates to a device for testing the compressive strength of sea ice. Background technique [0002] The environment of marine structures is relatively complex, affected by factors such as sea ice, wind, waves, currents, tidal loads, and seismic loads. Among them, sea ice has the greatest damage to offshore structures, and the damage methods include extrusion damage, sea ice damage, and sea ice damage. Impact, freezing adhesion, friction and climbing on sloped structures, etc. At present, offshore platforms add anti-icing cones to the upright pile legs, but this does not significantly increase the anti-icing capacity of offshore structures. Under the action of extreme ice force, marine structures are easy to be pushed down; under the action of alternating ice force, ice-induced structural vibration will occur, and ice-induced structural vibration can lead to fatigue damage of offshore structure...

Claims

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Application Information

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IPC IPC(8): G01N3/08
Inventor 张大勇岳前进于哲敏罗成喜许宁钟耀娄春娟伏亮明
Owner DALIAN UNIV OF TECH
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