The Research And Application Of Prestressed Concrete Pipe Pile

With the appearance of more and more high and large buildings, the building foundation engineering is getting more and more important. The technologies of shoring of deep trench, continuous concrete wall, the opposite method and so on are adopted successively. The connatural bugs of drilling caisson pile, the vibration settling tube filling pile and so on that are used widespread now are apparent. Most of them are that the ground is polluted seriously, the quality of the pile can not be promised, and the materials are wasted seriously and so on. The excess noise and vibration wave of the machine of the normal infiltrating prefabricating solid pile have heavy harms to the surroundings and the buildings. Thus it is difficult that this technology is used widespread.Practical situation of the development on new construction pile foundation equipment and advanced static pressure construction technology are combined, technology of the equal prestressed concrete pipe pile be converted, and technology of prestressed concrete taper pipe pile be developed, from its trend of development in our province , we can see that other foundation piles are substituted wholly by it Building construction area is 600 myriad annual in Harbin, so the market capacity of is huge.With the continuous improvement , application on technology of prestressed concrete taper pipe pile ,it have superiority on reliability, safety and practicability than other foundation piles, which let it have the leading position in domestic market, and have the extensive foreground.The history of the development of prestressed concrete tubular pile is reviewed in this diploma work. The design method and the technology of constructional detection of tapered prestressed concrete tubular pile is introduced in this paper. And some usual questions of quality and the treatment of these questions are emphatic discussed too.The fact that the one-pile bearing capacity of the foundations constructed by the method introduced in this paper is remarkable enhanced is supported by engineering practice. Indicators of the pile test are all meet the requirements that are prescribed in Chinese codes.