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扩底墩具有承载力高、技术可靠、施工快速、设备简单、现场文明、经济效益好等明显优点,尤其适用于高层建筑和大跨度柱网工程,是一种值得推广的基础型式。本文根据一系列原型墩的试验资料,论述了扩底墩承载力的一些规律,并对这种基础的设计和施工方法提出了意见。1.扩散墩的特点和适用范围:扩底墩基础(见图1)是人工或机械成孔、深度一般为5～15m、直径0.6～1.5m
The expanded base pier has obvious advantages such as high bearing capacity, reliable technology, rapid construction, simple equipment, on-site civilization, and good economic benefits. It is especially suitable for high-rise buildings and large-span column network projects. It is a basic type that is worth promoting. Based on a series of test data of prototype piers, this article discusses some laws of the bearing capacity of the base piers and puts forward opinions on the design and construction methods of this foundation. 1. Characteristics and application scope of diffuser piers: The base of the expanded base (see Fig. 1) is artificial or mechanically formed into holes with a depth of 5 to 15m and a diameter of 0.6 to 1.5m.