| More and more deep foundation pitch appearance with the rapid development ofcity construction and reconstruction of old city area. Because of complex surrounding,the foundation pitch needs to be improved, but most of foundation pitches in thehouse construction field are temporary construction which exist short time and agentsometimes is reluctant to invest so much money, to the best of their abilities, theydiminish the cost of foundation pitch. For the sake of the need, the technique ofsoil-nailing appeared satisfy current market, The soil nailing retaining system, whichdeveloped in recent years, has been widely used in deep excavation, reinforcement ofslope soils and so on, for its advantages of lower price, short period of constructionand flexible fitness, and has become one of the most important and practical means indeep foundation pit protection. However, it is still not very clear that how did the soilnailing behave, the technology of soil-nailing in some extent limits and affects itsapplication and usage.In allusion to difference of codes of soil-nailing recently, two main codes—association standard construction code of soil-nailing(CECS96:97) and nation codeconstruction foundation technology code(JGJ120-99) are chosen to contract analysis,the force behavior was studied in common condition and discuss their advantage anddisadvantage, some design advice are provided.This article based of ChangCunChongQingLu centre foundation pitch, thoughvalue engineering method carry through optimize choice. At the same time, as aexample of foundation pitch, the soil-nailing design content, manner and checkingcomputations are studied, and the article introduced the soil-nailing constructionmethod and inspect measure content, Meanwhile, the former foundation pitch isnumerical analyzed by FLAC, studying the rule of force and distortion of soil-nailing,forecast the rationality of soil-nailing and study working character of soil-nailing.
|
PDF Full Text Request