土工基础

›› 2013, Vol. 27 ›› Issue (6): 62-64.

• 工程实录 • 上一篇    下一篇

桩基沉降计算的几个问题

 苗俊秋1 ,刘福臣2     

  1. （1，山东港湾建设集团有限公司，山东日照 276826；2，山东水利职业学院，山东日照 276826）
  • 收稿日期:2012-12-29 出版日期:2013-12-20 发布日期:2013-12-21
  • 作者简介:苗俊秋（1981-），女，工程师，研究方向为建筑工程施工技术。

On the Settlement of Pile Groups

MIAO Junqiu1, LIU Fuchen2   

  1. (1.Shandong Harbor Construction Group Co., Ltd., Rizhao Shandong 276826; 2.Shandong Water Polytechnic,  Rizhao Shandong 276826)
  • Received:2012-12-29 Online:2013-12-20 Published:2013-12-21

摘要： 针对密桩桩基、疏桩桩基两类桩型沉降计算方法，分析了沉降压缩层的分层原则、沉降计算点、应力计算点的选取原则；探讨了附加应力、沉降计算深度、压缩层厚度等指标的影响因素、计算指标取值，并给出了压缩层厚度计算公式；对长桩疏桩桩基，分析了沉降量的变化规律，提出了减少桩基沉降的建议和应对措施。

关键词: 桩基础, 疏桩, 附加应力, 沉降量, 分层总和法

Abstract: Two types of pile group settlement prediction methods are presented in this paper based on the densely spaced and sparsely spaced pile groups. The techniques for the sublayer division and the selection of settlement and induced effective stress calculation points are summarized in the paper. The thickness of compressible soil layer estimation, settlement pattern for the long and sparsely spaced pile groups as well as the settlement reduction methods are also summarized.

Key words: Piled Foundations, Sparely Spaced Pile Groups, Induced Effective Stress, Total Settlement, Summation of Settlement in Sublayers