Chinese Academy of Sciences

Wuhan Institute of Virology, Cas

Yang Zhao

Jie Liu

Zheng Lu

Hailin Yao

Chuxuan Tang

Chao Zhang

Hai-Rong Chen

Xin-Wen Chen

Yongxiang Zhan

Mingliang Yang

Xingwen Luo

Hong Tang

Ji-Zheng Chen

A device and method for health diagnosis of subgrade service performance, including: a loading device, which applies a load to a road; a data acquisition device, which collects stress and vertical displacement generated by a pavement layer when a load is applied; a data analysis device, that performs a frequency spectrum analysis on a vertical displacement signal to obtain a propagation speed of a Rayleigh wave of a pavement layer and a thickness of the pavement layer, and thereby obtains an elastic modulus of the pavement layer; inputting the stress, vertical displacement, elastic modulus and thickness of pavement layer into a trained subgrade soil modulus calculation model to obtain an elastic modulus of subgrade soil; and obtaining a dynamic deformation value of the subgrade under a standard load, and evaluating a health state of the subgrade according to the dynamic deformation value.

Device and method for health diagnosis of subgrade service performance

A method for determining a performance of a subgrade of an expressway section and a processing device thereof are used to accurately calculate a stress, a displacement, a velocity and an acceleration at any position inside the subgrade while analyzing the performance of the subgrade of the target expressway section, in full consideration of the moving speed and vibration characteristics of the vehicle load, the layered characteristics of the expressway and the unsaturated characteristics of the subgrade soil.

Method for determining a performance of an unsaturated subgrade of a multi-layered expressway section and processing device thereof

The present invention provides a CD81 and OCLN double transgenic mouse and its construction method and use. The double transgenic mouse can be used to constitute acute and chronic HCV infection in a mouse model.

[object Object]

Growing community of inventors

Wuhan, China

Yang Zhao