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根据钻孔灌注桩的荷载传递特性可知,桩基础承载力除了与桩身混凝土强度、桩径、桩长、长径比等内在因素有关外,还与桩穿越的各土层的层厚和力学性质、嵌岩段的长度和力学性质、孔壁泥皮、清孔、水下混凝土灌注等诸多外部因素有关。这些外部因素是我们在施工过程中必须注意并严格控制的。
According to the load transfer characteristics of cast-in-place bored piles, the bearing capacity of the pile foundation is related to the inherent factors such as the strength of the pile body, the diameter of the pile, the length of the pile and the ratio of the length to the diameter, and the layer thickness and mechanics of each soil layer the pile passes through. The nature, length and mechanical properties of rock-socketed sections, pore wall mud, blowholes, underwater concrete infusion and many other external factors. These external factors must be observed and strictly controlled during the construction process.