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Testing apparatus capable of simulating soil under effect of dynamic confined water and method thereof

A test device, the technology of confined water, which is used in the measurement device, the use of stable tension/pressure to test the strength of materials, the analysis of suspensions and porous materials, etc. Saturation rate and degree of saturation, avoiding experimental error, avoiding the effect of measurement accuracy

Pending Publication Date: 2018-09-28
ZHEJIANG UNIV
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Problems solved by technology

[0007] Inspired by the fact that the soil units in the basic geotechnical tests are all cylindrical, the model section is set as a circle, which solves the sudden force and deformation of the soil caused by the four corners of the rectangular section model box in previous tests The problem

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  • Testing apparatus capable of simulating soil under effect of dynamic confined water and method thereof
  • Testing apparatus capable of simulating soil under effect of dynamic confined water and method thereof
  • Testing apparatus capable of simulating soil under effect of dynamic confined water and method thereof

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] like figure 1 As shown, the present invention can simulate the test device of dynamic confined water action soil, including main body cylinder 1, data acquisition instrument 5, vacuum pump 6 and confined water pressure control system; described confined water pressure control system includes plexiglass Cylinder device 4, flow meter and electronic valve.

[0041] The main cylinder 1 consists of a top cylinder 1-1, a pore water pressure gauge fixing device 1-2, a waterproof rubber ring 1-3, several intermediate cylinders 1-4, and a bottom cylinder 1-5 , a trolley 1-6, and a cover plate 1-7, and each section of the cylinder is made of plexiglass, which can facilitate the observation of the deformation of the soil in the test; the top cylinder 1-1 is equipped with a cover plate 1- 7. The center of the lower surface of the cover plate 1-7 is provide...

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Abstract

The invention discloses a testing apparatus capable of simulating soil under effect of dynamic confined water and a method thereof. The testing apparatus comprises a main cylinder, a data acquisitioninstrument, a vacuum pump, and a confined water pressure control system; the confined water pressure control system comprises a synthetic glass cylinder apparatus, a flowmeter, and an electronic valve; the main cylinder comprises a cover plate, a top cylinder, several middle cylinders, a bottom cylinder, and a dolly; and aperture water pressure gauge fixing devices are arranged at different heightpositions of the main cylinder. The testing apparatus can simulate a dynamic and continuous change process of confined water in foundation, the water and soil pressure as well as deformation of the foundation under effect of the dynamic confined water are measured and calculated, the relative test data is arranged, the problems of bearing and deformation development rules of the foundation are determined; the influence of a mean value, an amplitude and rate of the change of the dynamic confined water on stability of the foundation can be researched, the effective test data support can be provided for research of the foundation problems due to effect of the dynamic confined water, and the basis can be provided for a theoretical analysis model at a later period.

Description

technical field [0001] The invention relates to a foundation model test device, in particular to a test device and method capable of simulating dynamic confined water acting on soil, which can be used to simulate a one-dimensional weakly permeable foundation soil. The response of water and soil pressure during the change, the law of the subsidence of the foundation with the change of the constant confined water head, and the failure conditions and failure modes of the foundation under the action of dynamic confined water. Background technique [0002] In areas along the river and along the sea, the confined water level at the bottom of the aquitard often has the characteristics of dynamic changes. Most of the reasons for this change come from the influence of the ocean or tides. Rainfall and underground engineering leakage will also cause changes in the confined water head. This change will cause changes in the water and soil pressure distribution of the aquitard soil, and t...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N3/12
CPCG01N3/12G01N15/0826G01N15/088G01N2203/0048G01N2203/0019
Inventor 应宏伟王迪章丽莎许鼎业沈华伟朱成伟李哲伟陈川虞展望张宇宣
Owner ZHEJIANG UNIV
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