Research And Application On Holding Type PHC Tube Pile With Tip Entering Into Rock By Augering Technique

Owing to the Pre-stressed High-strength Concrete Tube Pile has its wide application, single pile capacity and high price in project and so on, so it is developed quickly in our country. According to characteristic of region situation, the use of Holding Type PHC Tube Pile with Tip Entering into Rock by Augering Technique has its second development which has started to extend wide use step by step.Due to the limitation of theory investigation for the PHC Tube Pile by Augering on Tip in days gone by, and its mechanism of static pressure process and character of capacity are unconversant about the Tube Pile with special technics, so in this thesis, according to the regional geology in NanChang and depend on given project items, it has thoroughly discussed on the mechanism of static pressure process and character of capacity for this kind of tube pile, and offer academic directions for feasibility and capability of the static pressure process; Analyse the stress and strain of soil and hump of foundation by use of the ANSYS Finite Element Analysis, and bring forward precautionary measures; Get the means of educing the single pile capacity by end press in static pressure process and infer the experiential formula for capacity calculation by collecting and analyse experiment data; Get the measure of decisive factors of single pile capacity by use of Analytic Hierarchy Process; Compile Matlab Program to establish Artificial Neural Network Model, research the nonlinear mapped relation between decisive factors and single pile capacity, and forecast the value of single pile capacity, it comes up with another simple and convenient method for single pile capacity calculation, and also brings forward valuable design and construction suggestions for the far and wide use of Holding Type PHC Tube Pile with Tip Entering into Rock by Augering Technique in NanChang and other places.