Ningbo Huarun Land Wan Tau Lot 4 # residential project pile foundation and retaining wall Ⅱ project, the project is located in the head of Jiangbei District, Ningbo City (south of Heng Wu Road, Binhu Road, east), the price: 15,500,000 yuan, Duration 45 calendar days (plans to start March 15, 2015, April 28, 2015 completion). Engineering piles with Φ650, Φ700 455 bored piles, pile length 48-50m; Φ500 pipe pile 485, pile length 27-45m. The retaining pile is made of Φ650 @ 450SMW working method pile with a total square volume of about 7,000 m3 and profiled steel of 1145T. The elevator shaft adopts a Φ700 @ 500 cement mixing pile with a total square volume of about 1800m3.