| In recent years,with the rapid development of civil aviation in China,the traffic volume of civil aviation has increased rapidly.As an important facility for aircraft takeoff and landing,the quality of the airport pavement is directly related to the safety of the aircraft.The base of runway of the civil aviation,as the important supporting structure,should be stable,dense and homogeneous,the uneven deformation of which should not be produced under the action of environment and loading.The dynamic compaction method has so many advantages,such as convenient construction,good compaction effect and convenient operation,low cost and other advantages that has widely been used in engineerings.Based on the second-phase expansion project of Haikou Meilan International Airport,through the geological survey,the data in the field of geotechnical engineering geological conditions and hydrogeological conditions of the site is obtained.According to the similarity of geotechnical properties,the partition of layout design for the airport runway is gotten.In situ test and soil test combination,the lithology information is fully grasped.Considering of the scene construction conditions,the requirements of the construction of non-stop flight,the selection of mechanical compaction test is choiced reasonablely.Through theoretical analysis and calculation for different soil compaction in different level under the action of the effective reinforcement,the effective reinforcement depth and the average settlement can be obtained.The influenced area of the runway is divided into four four types of different tamping energy region according to the difference of the total thickness of pavement.All the areas have been done the foundation designation and put forward the operation requirements of different partition compaction technology.The result can be the support of reliable technology and theory for large area processing and for Haikou Meilan Airport foundation to provide... |
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