一、序言把福岗市当作模型场地,在全市范围内计算了地基的卓越周期、地基放大系数等地震地基反应的最基本性质。最近,在福岗市,由于在地铁工程中采用了敞开挖掘工程法,以九州大学的向山广教授为首的九州地质调查协会福岗地基图编制小组的专家们,以统一的观点对该市的地基进行了研究,编制了包括2600个钻孔柱状图的详细地基图。由于上述调 I. Preface To use Fugang as a model site, the most basic nature of seismic ground response such as the excellent cycle of the foundation and the base magnification factor was calculated within the city. Recently, in Fukuoka City, due to the use of open excavation engineering methods in subway projects, experts from the Kyushu Geological Survey Association of Kyushu University headed by Prof. Shan Guang, experts from the Fukuoka Foundation Drawing Preparation Group have a unified view of the city’s The groundwork was studied and a detailed ground plan including 2600 borehole histograms was prepared. Due to the above adjustment