以圓弧滑動法探討離岸基礎在非均質黏性土之承載力分析

Abstract

隨著地球人口的膨脹和發展中國家的工業化，人類對能源的巨大消耗已經給地球造成了難以想像的隱患，煤、石油和天然氣的燃燒與地球大氣層溫室氣體排放量的不斷上升之間存在密不可分的關係。 因此，再生能源的開發將是未來各國發展的趨勢。其中台灣西部擁有全世界最好的風場可以發展離岸風力發電。但台灣西部海域地質條件具有高度變異性，不同的離岸風場區位面臨的土壤地質潛在災害與工程挑戰均不相同。本文在進行基礎承載力分析時將會針對黏性土壤之現地情況作分析。 本研究針對自升式平台船之基礎進行分析，探討離岸基礎於非均質黏性土壤之基礎極限承載力。本文將使用圓弧滑動法，探討非均質黏性土壤之承載力因子變化與黏性土壤之破壞分析，並根據結果進行討論。

With the expansion of the earth's population and the industrialization of developing countries, the huge consumption of energy by human beings has caused catastrophic dangers to the earth. There is an inseparable relationship between the combustion of coal, oil and natural gas and the rising emissions of greenhouse gases in the earth's atmosphere. Therefore, the development of renewable energy will be the development trend of countries in the future. The western part of Taiwan has some of the best wind farms in the world to develop offshore wind power. However, the geological conditions of the western Taiwan sea area are highly variable, and the potential soil geological hazards and engineering challenges are different for different offshore wind field locations. In this paper, the analysis of foundation bearing capacity will focus on the in-situ situation of cohesive soil. This article takes the foundation of jack-up barge as an example to discuss the ultimate bearing capacity of foundation based on inhomogeneous cohesive soils. In this paper, the slip circle method is used to investigate the change of bearing capacity factors of inhomogeneous cohesive soils and the failure analysis of cohesive soils.