Study On Soft Soil Foundation Treatment And Optimizatin Design Of Yingkou Airport

In this paper,combined with the "Yingkou Airport soft foundation treatment test" project example,through the site test,select a typical experimental area to carry out a variety of ground treatment test work to evaluate the advantages and disadvantages of the foundation treatment test method and to determine the most reasonable foundation Processing methods,construction technology and testing indicators.Finally to select the economic rational and technically feasible foundation treatment program for the large-scale foundation treatment and treatment program design and construction.This paper studies the above contents through five parts: First,finding out the main geotechnical engineering problems of the flight area through the study of engineering geology and hydrogeological conditions in the flight area.Combined with the site conditions of the construction area,putting forward a targeted test program for ground treatment.Second,through the selection of typical test area,carry out different ground treatment program experimental study and study the reinforcement effect and influencing factors of each treatment scheme,and finally evaluate the advantages and disadvantages of the foundation treatment program.Third,select the most suitable foundation treatment program for Yingkou Airport field,and to optimize.Fourth,the experimental data of different foundation treatment are summaried and the typical experimental area is modeled by FLAC3 D 3D.The parameters of each layer are assigned according to the actual physical and mechanical properties of the formation.Two different foundation treatment schemes are simulated and Based on the comparison and analysis of the test data,the rationality and feasibility of the numerical model are verified.Finally based on this,the settlement of Yingkou Airport field is predicted by FLAC3 D.The final total settlement of runway centerline after 20 years is 22.8cm and settlement rate of the adjacent points of the airport runway is 0 ~ 0.70 ‰,which meets the requirements of the project.