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钻孔灌注桩的固有缺陷(桩底沉渣和桩身泥皮)限制了桩身材料强度的发挥。后压浆技术是解决这一问题的新方法。结合工程实例,介绍了其加固机理和施工工艺,通过现场载荷试验验证了该技术的应用效果。
The inherent defects of the cast-in-place bored piles (sediment at the bottom of the pile and mud skin of the pile) limit the exertion of the strength of the pile material. Post-grouting technology is a new way to solve this problem. Combined with engineering examples, the reinforcement mechanism and construction process were introduced, and the application effect of the technology was verified by field load tests.