Microstructure evolution method based on soil dynamic parameters and anisotropy measuring instrument under k0 condition

A dynamic parameter, anisotropic technology, applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problem of inability to guarantee, cannot truly reflect the state of soil stress, and cannot truly obtain the maximum dynamic shear modulus. Compression modulus and other issues, to achieve the effect of high reliability, convenient operation and improved accuracy

CN104880366BActive Publication Date: 2018-01-16WENZHOU UNIV OUJIANG COLLEGE
13 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-01-16

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention provides a microstructure evolution method based on a soil dynamic parameter and anisotropy measuring instrument under K0 conditions. The soil dynamic parameter and anisotropy measuring instrument includes a loading device and a model box for providing loads. The model box is composed of a cavity for storing the soil to be tested and an openable cavity cover. The loading device is connected with the cavity cover of the model box. A piezoelectric sensor for measuring soil shear modulus and compressive modulus, the horizontal and vertical directions of the model box are also provided with pressure film sensors for detecting the horizontal earth pressure and vertical earth pressure of the soil to be measured, the A buffer pad is provided at the installation place of the piezoelectric sensor and the model box, and a strain detection device for detecting the variation of the soil stress to be measured is also provided on the chamber cover. The present invention improves the accuracy of the soil measurement modulus and the accuracy of the K0 state. Mechanical response, easy operation and high reliability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a device and method for the evolution of basic mechanical parameters and microstructure of soil, in particular to a K 0 Microstructure evolution method based on soil dynamic parameters and anisotropy tester under certain conditions. Background technique

[0002] The maximum dynamic shear modulus and dynamic compression modulus of sandy soil are the two most basic parameters of soil dynamics, and are very important basic parameters in the calculation and design of geotechnical engineering, and different soil particles under different loads The environment is also undergoing the evolution of microstructure, and this series of processes must be quantitatively analyzed in the laboratory before the design and construction of infrastructure, which provides a strong foundation for the improvement of safety and durability in the construction and operation of future projects. strong guarantee. At present, in domestic geotechnical engi...

Examples

Embodiment Construction

[0019] Embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0020] Such as figure 1 As shown, the present invention provides a K 0 An instrument for measuring soil dynamics parameters and anisotropy under certain conditions, which includes a loading device for providing loads and a model box, and the model box is composed of a cavity for storing the soil to be tested and an openable cavity cover. The loading device is connected with the cavity cover of the model box, the horizontal direction and the vertical direction of the model box are respectively provided with piezoelectric sensors for detecting the shear modulus and compressive modulus of the soil to be measured, and the horizontal direction of the model box And the vertical direction is also provided with the pressure thin film sensor that is used to detect the horizontal earth pressure of the soil to be measured and the vertical earth pressure, and the install...