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Trap experiment equipment based on underground water level change

A groundwater level, test equipment technology, used in climate change adaptation, material inspection, testing material strength using applied stable tension/pressure, etc.

Pending Publication Date: 2022-06-03
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a Trapdoor test equipment based on groundwater level changes to solve the problem that the existing Trapdoor test equipment cannot perform soil arch tests on rocks and soils that have groundwater rising factors

Method used

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  • Trap experiment equipment based on underground water level change
  • Trap experiment equipment based on underground water level change
  • Trap experiment equipment based on underground water level change

Examples

Experimental program
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Embodiment Construction

[0034] like figure 1 , figure 2 , image 3 as well as Figure 4 Shown is the Trapdoor test equipment based on the change of groundwater level disclosed in the present invention, including a base 1, a test sand box 2, a water tank 3 and a Trapdoor device 4;

[0035] The base 1 is provided with the test sand box 2, the bottom of the test sand box 2 is provided with a settling door installation groove 20 connecting the inside and the outside of the test sand box 2, and the inside of the test sand box 2 is a test sand chamber 26, The test sand chamber is filled with test sand 27, preferably, at least one side wall of the test sand box is made of a transparent material to facilitate observation and testing, and the test sand box is water-tight as a whole;

[0036] The base 1 is provided with a Trapdoor device installation cavity 10. The Trapdoor device 4 includes a sink door 40 that can be raised and lowered and a sink door driving device 41 used to drive the sink door 40 to ri...

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Abstract

The invention discloses an underground water level change-based Trapdoor experimental facility, which comprises a base, a test sand box, a water tank and a Trapdoor device, a test sand box is arranged on the base, and a sinking door mounting groove communicated with the inside and the outside of the test sand box is formed in the bottom of the test sand box; a Trap device mounting cavity is formed in the base, the Trap device comprises a sinking door capable of ascending and descending and a sinking door driving device used for driving the sinking door to ascend and descend, the Trap device is arranged in the Trap device mounting cavity, and the sinking door is arranged in the sinking door mounting groove; a rubber film for performing water sealing between the test sand box and the subsidence door is fixed on the subsidence door mounting groove; the water tank is arranged on one side of the test sand box and communicated with the lower end of the test sand box through a pipeline, and a control valve is arranged on the pipeline. According to the Trapdoor test equipment based on the underground water level change, the rising of underground water can be simulated through the water tank, so that the test is closer to the actual condition of geotechnical engineering.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering tests, in particular to Trapdoor test equipment based on groundwater level changes. Background technique [0002] Soil arching effect is one of the most common phenomena in geotechnical engineering. French military engineers first discovered the soil arching effect in barn engineering in the 19th century. In the 1920s and 1930s, its importance in tunnel engineering received extensive attention. Afterwards, scholars at home and abroad have done a lot of research on the soil arch effect from the aspects of experiment, theory and engineering practice, and have achieved considerable results. In 1936, Terzaghi used the Trapdoor test for the first time to visually confirm the existence of the soil arch effect and analyze the stress distribution in the "soil arch" action area. Since then, Trapdoor test has become one of the most commonly used methods to study the soil arching effect. ...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N3/12
CPCG01N33/24G01N3/12G01N2203/0048G01N2203/0019G01N2203/0075Y02A40/81
Inventor 刘翔张瑞姜谙男王东池虢新平黄炫茜
Owner DALIAN MARITIME UNIVERSITY