一、板桩式基础(一)概述板桩式基础是在现场打入钢管板桩使组合成圆形、矩形或椭圆形封闭形状并在板桩顶部进行固结处理的井筒状结构,必要时进行接头处理可做成获得预定水平抗力和竖直支承力的结构型式。然而,这种基础因系把钢板桩接头连结后形成的井筒式结构,由于井筒的组合效果,故其断面刚度比将单板桩 First, the pile foundation (a) Overview Piled foundation is the scene into the pile of steel pipe to form a combination of circular, rectangular or oval closed shape and consolidation at the top of sheet pile shaft structure, if necessary The joint treatment can be made to obtain a predetermined level of resistance and vertical support structure of the type. However, this basis is due to the connection of steel sheet pile joints formed after the wellbore structure, due to the combined effect of the wellbore, so the section stiffness than the single pile