PHC管桩在高速公路软基处理中的应用研究

Study on the Application of PHC Pipe Pile in the Soft Foundation Treatment of Expr Essway

软弱土的工程性质比较复杂,参数确定较困难,在软基上修高速公路,是现如今该行业深入研究的核心话题。预应力高强PHC管桩自身的单桩承载力非常高、施工速度快、施工速度较快、施工质量有保证,满足快速施工要求,对工后沉降的控制更好。本文基于工程实例,介绍了PHC管桩在高速公路软土地基处理中的设计特点和要点,结合现场勘察报告和相关规范,对PHC管桩加固处理后的沉降进行了计算,验证其符合规范要求,成功实现了PHC管桩在高速公路软基处理中的应用,为类似的高速公路软基处理工程的设计和施工提供一定的借鉴和参考价值。

The engineering properties of soft soil are complex and it is difficult to determine the parameters.The construction of Expressway on soft foundation is the core topic of in-depth research in this industry.The prestressed high-strength PHC pipe pile has very high single pile bearing capacity,fast construction speed,fast construction speed,guaranteed construction quality,meets the requirements of rapid construction,and better controls the post construction settlement.Based on engineering examples,this paper introduces the design characteristics and key points of PHC pipe pile in expressway soft soil foundation treatment.Combined with the field investigation report and relevant specifications,this paper calculates the settlement after PHC pipe pile reinforcement treatment,verifies that it meets the specification requirements,and successfully realizes the application of PHC pipe pile in expressway soft foundation treatment,which provides a certain reference and reference value for the design and construction of similar expressway soft foundation treatment projects.