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One-dimensional cylinder testing device capable of simulating dynamic head boundary effect of soil body and method thereof

A test device and dynamic water head technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of soil force, deformation and sudden change, and achieve the effect of avoiding the test accuracy

Pending Publication Date: 2018-07-10
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] 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

Method used

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  • One-dimensional cylinder testing device capable of simulating dynamic head boundary effect of soil body and method thereof
  • One-dimensional cylinder testing device capable of simulating dynamic head boundary effect of soil body and method thereof
  • One-dimensional cylinder testing device capable of simulating dynamic head boundary effect of soil body and method thereof

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] Such as figure 1 As shown, the present invention can simulate the one-dimensional cylinder test device of the dynamic head boundary action soil, including the main cylinder 1, GDS standard controller 2, plexiglass cylinder device 3, and data acquisition instrument 4 four parts.

[0038] 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 , trolley 1-6, each section of the cylinder is composed of a piece of plexiglass, which can facilitate the observation of the deformation of the soil in the test; the wall of the top cylinder 1-1 is equipped with a water outlet valve 1-1-1, and the water outlet valve 1-1-1 The bottom is flush with the top surface of the test soil. During the test, the outlet valve 1-1-1 is ke...

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Abstract

The invention discloses an one-dimensional cylinder testing device capable of simulating dynamic head boundary effect of a soil body and a method thereof. The device comprises a main cylinder, a GDS standard controller, a synthetic glass cylinder apparatus, and a data acquisition device; the main cylinder comprises a top cylinder, several intermediate cylinders, a bottom cylinder and a dolly whichare connected from up to down, aperture water pressure gauge fixing devices are arranged at the main cylinder at different heights, and the bottom of the bottom cylinder is respectively connected with a GDS standard controller and a synthetic glass cylinder apparatus. The device is capable of simulating a dynamic change process of confined water in foundation, measuring and calculating the waterand soil pressure and deformation of the foundation under dynamic confined water effect, arranging the relative test data and determining the problems such as foundation bearing and deformation development rule, searching the influence of amplitude and rate of the dynamic confined water change on the foundation stability, providing effective test data support for researching the foundation problemdue to dynamic confined water effect, and providing basis for a later theoretical analysis model.

Description

technical field [0001] The invention relates to a foundation model test device, in particular to a one-dimensional cylinder test device and method capable of simulating the boundary action soil of a dynamic head, which can be used to simulate the dynamic changes of confined water and cover the impermeable foundation soil To respond to the situation, study the failure conditions and failure modes of the foundation under the action of dynamic confined water. Background technique [0002] my country has a vast territory, abundant water resources, and widespread distribution of groundwater, especially in coastal areas along rivers. With the complex distribution of soil layers, there is often the phenomenon of confined water below the aquitard. Flood peak transit, tidal action, large-scale rainfall, and the use of decompression wells in engineering will lead to dynamic changes in the confined water head at the bottom of the aquitard, which will further affect the water and soil p...

Claims

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Application Information

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IPC IPC(8): G01N3/12
CPCG01N3/12G01N2203/0266G01N2203/0048G01N2203/0019
Inventor 应宏伟许鼎业沈华伟章丽莎王迪朱成伟李哲伟陈川虞展望张宇宣
Owner ZHEJIANG UNIV
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