Received: February 5, 2018 Revised: February 23, 2018 Accepted: February 26, 2018 Abstract: Background: The analysis of piled foundations, where horizontal environmental loads play a very important role, has taken foundation design a step further in the 1970s and 80s. Nonlinear analyses considering P-y, T-z and Q-z curves became the state-of-the-art which also included group effect calculations...

In recent years, the high development of high-speed railway lines cross through areas with poor geological conditions, such as soft soil, offshore and low-lying marsh areas, resulting geotechnical problems, large settlements reduction bearing capacity. As a new soil reinforcement method in speed lines, piled raft structure has been used to improve conditions control excess settlement. order stu...

This paper includes the investigation of soil–structure interaction (SSI) effect on seismic response 20 and 30-story reinforced concrete moment resisting frames (MRFs) rested a piled raft foundation using direct approach. After that, study is conducted to show impact cellular instead designed solid dynamic building. A introduced select best gap size for raft. The soil model assumed as single la...