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在软土地基或松散沉积物工程性能的改良中,碎石桩技术得到了广泛的应用,相应的研究也越来越多。国内外众多研究者根据工程的实际需求,立足于安全,着重考虑经济效益,研究出不同类型、不同建造方法、不同破坏机制的碎石桩,取得了许多成果。本文结合国内外对于碎石桩的研究,分别从碎石桩的分类、建造方法、失效机制、影响性能的因素作了综述,分析其规律,提出了未来碎石桩研究的方向。从碎石桩的研究历史可以发现,碎石桩在改良软土地基方面主要向以下方向发展:原理及机制的研究不断深入;适用范围不断的扩大;在满足安全的前提下,更多的结合实际需求考虑经济效益。
In the improvement of soft soil foundation or loose sediment engineering performance, the technology of gravel pile has been widely used, the corresponding research is also more and more. Many researchers at home and abroad have made many achievements based on the practical needs of the project, based on safety, focusing on economic benefits, researching different kinds of gravel piles with different construction methods and different damage mechanisms. Based on the domestic and international research on gravel piles, this paper summarizes the classification, construction methods, failure mechanisms and the factors that affect the performance of the gravel piles. The regularities are analyzed and the future research directions of the gravel piles are proposed. From the research history of gravel piles, it can be found that the gravel piles mainly develop in the following aspects to improve soft soil foundation: the research on principles and mechanisms is deepening; the scope of application is constantly expanding; and under the precondition of meeting safety, more combination Actual needs to consider economic benefits.