Computational simulation for the interaction of pile and soil nail in foundation

With the development of high building, subway engineering, municipal engineering and underground engineering, the number of deep foundation increases greatly. The failure of the foundation will cause many environment geotechnical problems and accidences, which will threaten the safety of engineering and cause some loss of people´s life and economy. The pre-stress nail-pile structure is widely applied in deep foundation, for its low cost, construction convenience. The numerical simulation techniques are adopted to study the foundation effect with reinforcement of pile-nail, interaction of between pile-nail and soil, the effect of pile-nail to the stability of foundation, numerical calculation method for the stability of foundation, and the interaction between pile and nail. Results can give some guidance for the real practices.