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本文是结合干船坞规范编制中的桩基问题,在调查研究和模型试验基础上提出的一份研究报告。文中通过同一种亚粘土上的不同桩距,不同入土深度,桩的不同排列和桩数,承台的不同设置方式(即高桩台、低桩台与无桩基础板)等方面进行了对比试验,并通过桩反力和土反力的荷载传感器及位移器实测了桩力、桩间土反力和变形。通过分析,对基础-桩-土的工作性状和设计的最优化尺度及承载力等方面,都有一些新的规律性的认识,有些研究成果已列入我国干船坞设计规范(1985)。
This paper is a research report based on the investigation and model tests based on the problems of pile foundation in the formulation of dry docks. In this paper, different pile spacing, different depth of soil penetration, different arrangement of piles, and number of piles on the same sub-clay, and different installation methods of pile caps (ie high pile piles, low pile piles, and pile-free base slabs) were compared. The pile force, soil reaction between piles, and deformation were measured using the load sensors and displacements of pile reaction force and soil reaction force. Through the analysis, there are some new regularities in the basic properties of the foundation-pile-soil, such as the optimization of work characteristics and design, and the bearing capacity. Some of the research results have been included in China’s dry dock design specifications (1985).