Xing Heng Highway Soft Soil Foundation Characteristics And Treatment Effect Analysis And Evaluation Ttechnology Research

With the rapid development of highway construction in our province,in the construction of XingHeng high-speed have a soft soil foundation treatment problems.Highway soft soil foundation treatment is very complicated,however,most engineering are mainly related to policy maker’s knowledge and experience,combined with our country can now reference the lacustrine facies soft soil treatment in plain area of few data,but it has a serious harm.This requests us to face up to the engineering properties of soft soil,select the correct measures to ensure that the foundation settlement can conform to China’s rules on the specification and engineering construction and post-construction settlement requirements.This paper based on XingHeng high-speed HengShui section of the second phase,the properties of soft soil indexes and processing measures were studied,the following results have been achieved:(1)Introduces the development situation of highway in our province,illustrates the great significance of building XingHeng high-speed,summarized the results of the research on the treatment of soft soil foundation at home and abroad.These have provided a lot of reference information for the writing of this paper;(2)A brief introduction to some of the methods which can be used for the settlement prediction is presented and the commonly used methods for soft foundation treatment,and illustrates the settlement observation method applied in construction;(3)According to the relevant geological information and survey report,taking the distribution of the soft soil around,adopt the method of mathematical statistics to the second phase of the physical and mechanical properties of soft soil consolidation,and compared with the engineering specification of our country to draw its unique characteristics,using correlation analysis and test of significance to engineering index are analyzed,got some empirical formula has been limited to the region;(4)Using PLAXIS software for numerical simulation,simulates the jet groutingpile and CFG pile, drainage sand well method for soft soil foundation treatment effect,fitting the foundation settlement process,and compared with the observed values were analyzed,conclusion PLAXIS used in the simulation of the geotechnical engineering is more reliable conclusion.