黄河冲积平原区高速公路加宽中刚性桩的应用  

Application of the rigid pile on expressway widening in alluvial plain of the Yellow river

作　　者：钟立昌 谢波 ZHONG Lichang;XIE Bo(Shandong Provincial Communications Planning and Design Institute Group Co.,Ltd.,Shandong Jinan 250101 China)

机构地区：[1]山东省交通规划设计院集团有限公司,山东济南250101

出　　处：《山东交通科技》2022年第6期58-61,共4页

摘　　要：为有效减小黄河冲积平原区高速公路加宽时新拼宽部分地基沉降,对各种地基处理方式进行对比分析,选取刚性桩复合地基作为地基处理方式。对刚性桩复合地基的单桩承载力、复合地基承载力、地基沉降计算公式进行分析。选取京台高速德州至齐河加宽段进行计算,结果表明刚性桩复合地基可有效提高基地基承载力,减少地基沉降,证明了刚性桩复合地基在黄河冲积平原区高速公路加宽中应用的可行性。In order to reduce the foundation settlement of widening part of expressway in alluvial plain of the yellow river,a variety of foundation treatment methods are compared and analyzed, rigid pile composite foundation is selected as foundation treatment method. Calculation formulas of bearing capacity of single pile, bearing capacity of composite foundation and foundation settlement are analyzed. BeijingTaipei expressway widening from Dezhou to Qihe is selected as an example to calculate, the results show that rigid pile composite foundation can improve bearing capacity of foundation and reduce foundation settlement.The application of the rigid pile on expressway widening in alluvial plain of the yellow river is proved to be feasible.

关 键 词：黄河冲积平原区 高速公路加宽 刚性桩 承载力 沉降 

分 类 号：U416[交通运输工程—道路与铁道工程]