| dc.description.abstract | Taiwan land resources are limited. With a view to expanding industry and the promotion of life quality, we have to invest in public projects earnestly and boost them. The land prices in urban areas are especially high, which leads to the construction of skyscrapers. Therefore, to increase the stability of the structures, pile foundation is of more use. Traditionally, all-casing pile foundation is designed by the procedure of trial and error. Though it can answer to the satisfaction of requirements and safety consideration, its building cost is not the lowest, nor is its effectiveness. At the present time, because the grit’s price runs high, and the sizable demands, it will have tremendous effect on the project cost. The purpose of this study is to solve this problem and to develop a fast, simple and convenient model of primary optimization in order to offer a reference to designers making decisions.
This study utilizes non-linear mathematics to plan the theory, using LINGO software and finding out the diameter pile, length of pile, distance between piles and the number of piles through the known parameter and confided conditions, for the best solution to low costs. During the course of resolution, geology, load or the unit price changes, we can adjust the parameter to the latest condition at anytime and re-plan the model. With sensitivity analysis, we can understand the influence on the engineering project cost by the parameter change. Then, further the specification of the designs and sizes of the piles for the purpose of saving costs. After this study is tested with the case, comparing the performance differences between this study model and traditional method, the result shows well. The contents of this study can be applied to each pile designing flexibly, so will they show effectiveness and practicality. | en_US |