Soil foundation environment in-situ condition sample maintenance device and method

An environment and foundation technology, applied in the direction of measuring devices, test sample preparation, instruments, etc., can solve problems such as difficult to describe the impact of soil, and achieve the effects of saving laboratory space, high controllability, and simple operation

Inactive Publication Date: 2019-08-02
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The actual foundation soil is under the joint influence of external load and external environment, but the exist

Method used

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  • Soil foundation environment in-situ condition sample maintenance device and method
  • Soil foundation environment in-situ condition sample maintenance device and method
  • Soil foundation environment in-situ condition sample maintenance device and method

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the drawings.

[0032] See figure 1 , image 3 with Figure 4 , A soil-based environment in-situ condition sample curing device, comprising a curing room 3, the bottom of the curing room 3 is provided with a number of cushion blocks 7, the cushion block 7 is provided with a lower partition 4, the upper partition 4 is provided with The upper partition 5, the lower partition 4 and the upper partition 5 are provided with a surrounding soil body 2, and the surrounding soil body 2 and the lower partition 4 and the upper partition 5 are all provided with filter paper 6 to protect the soil body 2 The sample 1 is wrapped, the moisture sensor 12 is arranged in the soil body 2, the lower partition 4 and the upper partition 5 are provided with a number of reserved holes 21, the curing chamber 3 is provided with an insert block 7 and the bottom of the curing chamber 3 The top of the vent pipe 11 extends from th...

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Abstract

The invention discloses an soil foundation environment in-situ condition sample maintenance device and method, a sample is wrapped with enclosure soil, and the device and the method are closer to theactual environment. Reserved holes are formed in the upper partition plate and the lower partition plate, water can permeate into the upper partition plate and the lower partition plate from top to bottom by adding water to the upper partition plate, and the rainfall environment is simulated; water can be infiltrated from bottom to top by adding water into the water storage bottle, and the capillary pressure induced water infiltration process can be simulated. The edge of the lower partition plate is provided with a vent pipe communicating with external atmospheric pressure, so that air bags are prevented from being generated when water is injected into the water storage bottle to change boundary conditions of the lower portion of the enclosure soil.

Description

Technical field [0001] The invention belongs to the field of test devices, and specifically relates to a soil-based environment in-situ condition sample maintenance device and method. Background technique [0002] Indoor geotechnical testing has always been the core research method of related disciplines of foundation engineering. Corresponding test equipment can simulate the response law of foundation soil under different stress paths, so as to provide reference for engineering design and construction. Therefore, indoor geotechnical testing has become an indispensable method for scientific research personnel in related fields. [0003] The purpose of the design of various geotechnical testing instruments such as dynamic triaxial apparatus and hollow cylindrical torsion shear apparatus is to reproduce the true stress or strain state of the foundation soil under external load as accurately as possible. The focus is on the specimen The mechanical response during the load process ign...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N3/02
CPCG01N1/28G01N3/02G01N2203/0246
Inventor 王瑞胡志平任翔张飞马甲宽杨荣茂
Owner CHANGAN UNIV
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