The Relativity Analysis Of Liaoning Regional Soft Soil Physical And Mechanical Indexes

The soft soil are widely distributed in our country, so it has been focus on the survey and design departments, it has a bad engineering properties such as thixotropic and rheological property, among them, each specification have been involved in soft soil survey techniques,however, uneven in layers of liaoning regional reconnaissance technology of soft soil foundation,the specification of each one there is no clear and specific provisions. Based on the comprehensive analysis of engineering properties of soft soil foundation in liaoning area,learning from soft soil survey techniques,this article has carried on the system research to the Liaoning regional investigation method of the soft soil foundation and the experience of the relationship between the indexes, and achieve the following main achievements:1?This paper concluded the characteristics of the soft soil layers in liaoning area and the scope of the change of physical and mechanical indexes through the statistical analysis of Liaoning regional soft soil engineering geological data in detail, and through the comparative analysis with other soft soil area, found that soft soil in liaoning area have bigger difference, so in the survey technology and construction technology to the soft soil is different from other regions.2?This paper analyzes the regional geological condition of soft soil in liaoning through the real example of soft soil engineering survey of YingKou and PanJin, and puts forward the suitable for liaoning regional survey and sampling methods of soft soil foundation, combined with the engineering characteristics of the study and Statistical analysis of indoor and in-situ test results of variability.3?This paper comparatively detailed research into the cause of the sampling disturbance,the consequences of the sampling disturbance and the solution of the sampling disturbance,introduces the study of disturbance degree, as well as its relationship with the strength of soil,summarizes the experience formula of the existing disturbance degree and intensity,and can take the strength of the disturbed soil samples back to the Strength in situc.4?According to the analysis of the mechanical index data in Yingkou soft soil area, the empirical formula of the index is obtained.5?According to a large amount of engineering practices date, this paper statistically analysis of index correlation and variability of the Liaoning soft soil physical and mechanical indexes,and each index between the empirical formula is established. Available for liaoning area after the same type of soft soil engineering survey, construction, design, experimental reference for the application.