Application Research Of Foam Concrete In Bridge And Road Transition

In road engineering construction,it is inevitable to encounter the construction of special sections,in which soft soil sections are difficult to handle and take a long time.Different soft soil thicknesses need to be treated with different soft soil treatment methods.Foam concrete replacement can be used to treat deep soft soil roadbeds,but design parameters such as design thickness design parameters in special bridge transition sections need to be calculated.Aiming at the characteristics of such deep soft soil with high water content,high void ratio,and low strength,this paper relies on deep soft soil subgrade engineering,based on foam concrete construction method,to explain foam concrete from construction technology,site monitoring,numerical simulation,and theoretical design.The application in the bridge transition section includes the following main tasks:1.Read the relevant theoretical knowledge of the literature,summarize the mechanical properties,physical properties,preparation technology and application of subgrade filling in foam concrete to provide guarantee for subsequent work.2.According to the design requirements of foam concrete mix ratio,the research of foam concrete construction technology in the transition section of bridge and road is cancelled.The construction method of foam concrete embankment can alleviate the rigidity of the bridge abutment and roadbed due to the large difference in mechanical properties of materials.mutation.3.The numerical simulation software Abaqus was used to carry out three-dimensional simulation of the canceled slope structure of the bridge head,and the relationship between the different replacement thicknesses on the cross-section and longitudinal section foundation settlement and ground stress was studied.4.Describe the advantages of foam concrete in relying on engineering applications,and dynamically adjust the unloading and loading standards based on field monitoring data.5.Combining the calculation methods of foam concrete design in different stages,based on the prediction method of subgrade cumulative settlement,a practical design calculation method of foam concrete is proposed.Figure[27]table[18]reference[103]...