Construction Technology Of Underwater Pile Foundation And Pile Caps Of Wuding River Bridge

With the development of traffic engineering in recent years,demand for bridge construction also constantly improves in China.More and more complex construction conditions influence bridges construction.The deep foundation construction is one of technical problems.Because it is very difficult,high-risk,long-time,deep foundation construction engineering becomes the key to guarantee the project progress and quality.And it is the most important part of the bridge construction.Therefore,research on the deep foundation construction has very important significance.The wuding river bridge pier cap construction is as the research object in this paper.This paper studies the project of the steel sheet pile cofferdam construction scheme,foundation pit excavation and construction technology of bridge pier cap.Introduces the technology for construction of pile caps is the main body and basement treatment under complicated environment condition,the massive concrete temperature control technology is studied.In this paper,from the bottom of the pile caps on the sand,when the excavation easy appear to collapse accidents such as the construction difficulties,the steel sheet pile support checking and overall stability checking,provides a theoretical basis for the safety of the bridge construction,in addition,the article also to decorate the temperature of the temperature monitoring of bridge concrete member point to point,for large volume calculation before concrete pouring temperature and temperature stress crack control was studied,and draw a set of feasible foundation construction technical scheme of the deep.