Application Research On Foundation Pit Supporting In An Underground Garagebased By Pile-anchor Retaining Technology

The pile-anchor retaining technology is a structure of foundation pit and slope produced in 1980 s,and the technology has some advantages for low cost,simple construction and small impact on the surroundings.At present,it has been applied to many fields which are deep foundation pit and high slope.Due to this technology has been used in numerous support engineering,it gets more attention by engineers.Now,there are much pile-anchor retaining technology research,which are theory of computation,construction technology and safety monitoring etc.However,there are going to develop many applications of different supporting conditions for the reality.There are two points in the paper,first point introduced many basic calculation principles and second point combined with the practical project further to research theory of computation,construction technology and dewatering of foundation pit.The paper summarized that pile anchor retaining structure develop in practical deep foundation pit engineering based on this project in deep foundation pit and high slope engineering.It also summed up some the soil pressure calculation principles and simplified computation method and explained application conditions about those principles and method.United the practical project about underground garage discuss some respects,which are checking calculation of design,construction technology,dewatering design,drainage technology and some computation problems what we are often encountered.