Papers by Author: Hua Hu

Abstract: In south China, residual soil is widely distributed and one of the most main soil in engineering construction at the coastal areas. While its mechanical characteristics are easily affected by moisture content, which is a serious threat to engineering stability and safety. In this paper, granite residual soil in a construction site of Xiamen is selected as remoulded specimens, and unconfined compressive strength test and static triaxial shear test are used, which will show the influence of moisture content (20%, 23% and 26%) on the mechanical properties of specimens. As the result is analyzed, it shows that mechanical properties such as stress-strain relationship, unconfined compression strength, internal cohesive force, internal friction angle, and shear strength, are better than other specimens when the moisture content is 23%, which will be beneficial to the stability and security of engineering soil.

Abstract: The rheologic action of the soft soil could be accelerated by earthquake the dynamic loading, which induces more geotechnical engineering accidents and geologic disasters. The samples of marine deposit soft soil are collected in xiamen, and the rheologic rate, rheologic acceleration and rheologic strain under the dynamic loading of sinusoidal variation are tested and analyzed by using dynamic-triaxial device, and the influences of dynamic loading frequency and breadth to dynamic characteristics of soft soil are contrasted and analyzed. The research results have important academic signification for us to search rheologic dynamic characteristic of soft soil under dynamic loading.

Abstract: The soft soil is covered widely in China. Soft soil has obvious rheological character, it will induce landslide etc serious geologic disasters, and make severe threaten to stability and security of projects. The dynamic loading such as earthquake, raging billow, vibration are the important factors and mainly power of inducing landslide geological disaster. The rheological parameters of soft soil are tested and analyzed under dynamic loading, and the rheological model of soft soil is established. All these have important theory and actual signification for us to reveal rheological dynamic mechanism of landslide geological disaster under dynamic loading.

Abstract: Soft-soil has obvious rheology character, it will induce subsidence distortion, landslide etc serious geotechnical engineering and geologic disasters, and make severe threaten to stability and security of projects. The initializing shear stress and viscosity of sullage soft-soil are tested under static load, and the influencing characteristics are analyzed of which the percentage of clay and water affect the rheological parameters. The mechanism of which the percentage of clay and water affect the rheological parameters are opened out by using the theory analysis and technology of structure micrograph..The research results have have theoretic and practical significance for us to analyse changing disciplinarian of rheological parameters, reinforce soft-soil foundation, raise bearing capacity and whole strengthen of soft-soil.