Research On The Composite Ground With Enlarging The Top Area Of Piles

With the theoretical and technologic development and the application of composite foundation, there are many varieties with the types of composite foundation, many new types of composite foundation have been put into design and construction.By the way of enlarging the area of pile on the top to transfer more loading to the pile,the bearing capacity increases,and the settlement reduces.Because of the high bearing capacity of the ram-compaction piles with composite bearing base,the effect of enlarging is obvious.Through the application of the ram-compaction piles with composite bearing base in the sixth ring road engineering in Beijing,the character of the technology and testing effect are presented.Compared with other schemes of composite ground,the technology of ram-compaction piles with enlarging top is more economical and has broad application future.