Test device and test method for dynamic and static combined loading

A technology of dynamic and static combined loading and test device, which is applied in the direction of measuring device, elasticity test, and testing the strength of materials by applying stable tension/pressure

Pending Publication Date: 2019-08-09
中国人民解放军军事科学院国防工程研究院工程防护研究所
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings and deficiencies of existing test methods such as static load test, dynamic load test and dynamic test u

Method used

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  • Test device and test method for dynamic and static combined loading
  • Test device and test method for dynamic and static combined loading
  • Test device and test method for dynamic and static combined loading

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:

[0036] Such as figure 1 shown, combined with figure 2 , a test device for dynamic and static combined loading, the test device has an explosive dynamic load loading mechanism and a three-way static load loading mechanism; the three-way static load loading mechanism has a base 8; a static load is arranged directly above the base 8 Bearing ring 2; the static load bearing ring 2 is supported on the base 8 through the lower support column 9; the static load bearing ring 2 is provided with two symmetrically arranged X-direction jacks 1 and two symmetrical The Y-direction jack 22 provided; the two described X-direction jacks 1 and the two Y-direction jacks 22 are located in the same plane and are perpendicular to each other; the bottoms of the X-direction jacks 1 and Y-direction jacks 22 are fixed On the inner wall surface of the static load bearing ring 2, ...

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Abstract

The invention relates to an explosion mechanics and geotechnical engineering indoor model test technology, and proposes a test device and a test method for dynamic and static combined loading. The test device for the dynamic and static combined loading comprises an explosive dynamic load loading mechanism and a three-way static load loading mechanism; a base of the three-way static load loading mechanism is provided with a static load bearing ring; two symmetrically arranged X-direction jacks and two symmetrically arranged Y-direction jacks are arranged in the static load bearing ring; the X-direction jacks and the Y-direction jacks are abutted against a test piece through a static load loading plate; the bottom of the tests piece is supported by a Z-direction positioning plate; the Z-direction positioning plate is connected to a Z-direction jack; the top of the test piece is abutted against one end of a dynamic load force transmission piston; the other end of the dynamic load force transmission piston is connected with a dynamic load cavity force transmission plate in a dynamic load cavity barrel; and an explosive source is arranged in the dynamic load cavity barrel. According tothe test device for the dynamic and static combined loading provided by the invention, the test principle is visual, the load state simulation is accurate, the disassembly is convenient, and the operation is easy.

Description

technical field [0001] The invention relates to the indoor model test technology of explosion mechanics and geotechnical engineering, in particular to a test device and test method for dynamic and static combined loading. Background technique [0002] The combination of dynamic load and static load is often encountered in the structural stability and safety analysis of geotechnical engineering, especially deep underground engineering and long-span underground engineering; Explosion phenomena under certain conditions and the explosive loads acting on engineering structures, including air shock waves, ground shocks, strong explosion vibrations, etc., are notable for high peak strength, short loading duration, large load changes, and strong instantaneous effects; static loads It mainly refers to the load generated by the distribution of rock and soil mass and the action of geological structure, including ground stress and structural stress. It is characterized by stable load in...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N3/313G01M5/00
CPCG01M5/005G01N3/12G01N3/313G01N2203/0026G01N2203/0048G01N2203/0075G01N2203/0256
Inventor 王启睿明治清张向阳丁幸波陈安敏孔福利范俊奇顾金才
Owner 中国人民解放军军事科学院国防工程研究院工程防护研究所
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