Research methods: (1)To set the technological parameters of the Biting Pile machine during project constructing and to test the practicability through attempting the peg at the place of the original peg.(2)Through the various application of the Biting Pile machine in Han Dan Tunnel project to test its superiority at the same time may be obtain perpendicular of quality of a product.
Research result: The success of using the Biting Pile machine as the protecting structure ensures the security of deep Dia-Phragm Wall. The stimulation test succeeded, the fixed parameters in construction of Biting Pile machine can effectively control the process of construction; the Biting Pile machine can successfully deal with the underground obstacles, across the complex layers and work in a relatively limited place with practicability and the possibility.
Research conclusion: (1)the Biting Pile machine can work in the place of soft clay ground in Shang Hai and the layer rich in water.(2)It is vital to scientifically set the construction technological parameters when it works in different geological condition.(3)The Biting Pile machine works quickly and efficiently with low noise, little quake, without on mud. And so on. The finished the Biting Pile machine is with high quality, good property of waterproofing. The security and civilized construction meet the demand of protecting environment ,which can create nice external image.(4)The use of Biting Pile machine is perpendicular with standard appearance and the waterproof. It's not need to use mud of protection outer protective to the wall, and enlarge machine parameters. When acrossing the soft and richwater earth, it's need not to take other assist measures. The work efficiency and low price provide profit. to deal with the underground obstacles can work out the unsolved problem and consequently obtain a better economic benefit and social benefit.
2005, Vol. 22 
