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Underground engineering three-way loading test device with displacement feedback and loading test method

A loading test device, displacement feedback technology, applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., can solve the problem of inconvenient loading and unloading test filling material, achieve convenient and fast addition and cleaning, reduce Traction, avoidance of roller overloading effect

Pending Publication Date: 2021-03-23
HUNAN INSTITUTE OF ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, disclose a kind of underground engineering three-way loading test device and loading test method with displacement feedback, solve the problem of inconvenient loading and unloading test filling materials, and can realize three-way loading very conveniently test, and precisely control the displacement of each moving part of the test device

Method used

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  • Underground engineering three-way loading test device with displacement feedback and loading test method
  • Underground engineering three-way loading test device with displacement feedback and loading test method
  • Underground engineering three-way loading test device with displacement feedback and loading test method

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Embodiment 1

[0036] Preferred embodiment 1 of the present invention provides a kind of underground engineering three-way loading test device with displacement feedback, with reference to Figure 1 to Figure 7 , which includes a fixed frame 1, a mobile material truck 2, a loading device 3, a traction system 4, a hydraulic system 5, and an electric control system 6, and a vertical loading device 3 is provided on the upper part of the fixed frame 1 to realize the first from top to bottom Loading in one direction, a loading device 3 is provided on the left side of the mobile material truck 2 to realize loading in the second direction from left to right, and a loading device 3 is provided on the right side of the mobile material vehicle 2 to realize loading from the right side to the right side. The third loading direction on the left side is loaded, the second loading direction is just opposite to the third loading direction, perpendicular to the first vertical loading direction and on the same...

Embodiment 2

[0045] On the basis of preferred embodiment 1, such as Figure 4 As shown, further, the rear door 22 includes a rear door panel 221 , a rear door driving cylinder 222 , a rear door guide wheel 223 , and a rear door guide rail 224 . The rear door panel 221 is connected with the piston rod of the rear door drive cylinder 222, and the oil cylinder seat of the rear door drive cylinder 222 is connected with the material truck frame 23. The guide wheel 223 is arranged under the rear door panel 221, and the rear door panel 221 is supported on the rear door guide rail 224, and the rear door guide rail 224 is installed above the bottom of the mobile material truck 2, and the rear door drive cylinder 222 drives the rear door panel 221 to move relative to the front and rear direction of the material vehicle frame 23 to realize the sub-area loading test; Image 6 Shown is a kind of underground engineering three-way loading test device with displacement feedback according to the present in...

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Abstract

The invention discloses an underground engineering three-way loading test device with displacement feedback. The device comprises a fixed frame, a moving skip car, loading devices, a traction system,a hydraulic system and an electric control system; the vertical loading device is arranged at the upper part of the fixed frame to realize loading in the first direction from top to bottom; loading devices are arranged on the left side and the right side of the movable skip car respectively to achieve loading in a second direction and a third direction from the left side to the right side and fromthe right side to the left side, the loading devices are perpendicular to the first vertical loading direction, and the traction system is arranged on the lower portion of the movable skip car to achieve moving-in or moving-out of the movable skip car from the fixed frame. The hydraulic system provides pressure loads for the loading devices, and the electric control system has displacement feedback control, so that accurate displacement control of each motion device is realized. The invention further discloses a loading test method of the test device. By adopting the device and the method, the stress of the test model can be more practical, the test process is more convenient and faster, and the test cost is lower.

Description

technical field [0001] The invention relates to the field of geotechnical engineering model tests, in particular to a three-way loading test device and a loading test method for underground engineering with displacement feedback. Background technique [0002] With the continuous advancement of underground projects represented by tunnels in our country, how to evaluate the design quality of underground tunnel projects and how to ensure the rationality of engineering structure design is an increasingly challenging problem. Its research involves geotechnical engineering, structural engineering, seepage and vibration and other mechanical fields, and the impact of traffic load on engineering is also very significant. [0003] At present, there is a lack of practical and effective analysis methods at home and abroad, mainly relying on engineering experience for estimation, which has great blindness; in order to make up for the limitations of theoretical analysis and verify the rat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/06G01N3/02
CPCG01N3/12G01N3/06G01N3/02G01N2203/0019G01N2203/0048G01N2203/0256G01N2203/0682
Inventor 陈乐尧王秀珍黄麓升彭浩舸张鸣其他发明人请求不公开姓名
Owner HUNAN INSTITUTE OF ENGINEERING
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