Combined with Western Tunneling Project from Shenzhen to Hong Kong

the research concerns about deep foundation pit engineering in high fill in the construction of tunnel and municipal road structure Considered complicated geological conditions and asymmetry of composite road structure

a numerical simulation for foundation soil

tunnel structure

PHC group piles

municipal road and high backfilling soil is conducted by nonlinear FEM method. The settlement

horizontal displacement

total displacement and effective stress of composite road structure which is caused by deep foundation pit are discussed. Hence

the classification of controling the stability of composite road structure is proposed

and advances for controling the stability of composite road structure is presented. At the end

the suggested plan is demonstrated. The results show that foundation pit has bigger effect on overlying road structure than tunnel structure. It provides a useful reference for the similar projects.