土工基础

›› 2018, Vol. 32 ›› Issue (5): 475-479.

• 工程实录 • 上一篇    下一篇

深厚淤泥地层现浇箱梁支架基础施工过程中的支护方案分析

姚悟闻1，阳生权1,2，胡 义1，王贤情1   

  1. （1.湖南科技大学土木工程学院，湖南湘潭 411100；2.土木施工过程与质量安全控制实验室，湖南湘潭 411100）
  • 收稿日期:2017-11-29 修回日期:2017-12-06 出版日期:2018-10-30 发布日期:2018-11-02
  • 作者简介:姚悟闻（1993-），男，硕士研究生，研究方向为岩土力学与地下结构爆破振动效应。 通信作者：阳生权（1968-），男，教授，博士，硕士生导师，研究方向为地下工程与隧道施工安全。

Supporting Structure Foundation Construction of Cast-in-Place Box Girders Over Thick Soft Mucky Soils

YAO Wuwen1, YANG Shengquan1,2, HU Yi1, WANG Xianqing1   

  1. (1.College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411100;
    2.Key Laboratory of Construction Process, Quality and Safety of Civil Engineering, Xiangtan 411100)
  • Received:2017-11-29 Revised:2017-12-06 Online:2018-10-30 Published:2018-11-02

摘要： 深厚淤泥地层大型工程的修建中最大难题之一就是对软土地基的处理，这不仅严重影响工程建设过程中的稳定和安全，并且也对工程建成以后长期的安全性有着重要作用。能够进行深厚淤泥地层地基处理的方法多种多样，但是同一地质条件下不同处理方式各有其优缺点，从深厚淤泥地层现浇箱梁处治全过程出发并根据重点观测断面现场监测结果，评价了不同地基处治工程区软基的加固效果，对地基处理后的沉降观测与控制进行分析，为类似地质条件下工程提供评价依据。

关键词: 深厚淤泥层, 现浇箱梁, 支架基础, 施工过程, 支护方案

Abstract: One of the biggest challenges of large projects over soft mucky soils is the soil improvement to meet the post construction performance and safety requirements. Many soil improvement methods are available to strengthen the soft mucky soil strata with various advantages and disadvantages. This paper presents a case history of the soil improvements of the supporting structure foundations for the castinplace box girders using different methods. Throughout the settlement monitoring at different soil depths after the treatment, different soil improvement methods are evaluated.

Key words: Thick Soft Mucky Soils, CastinPlace Box Girders, Foundation for Supporting Structures, Construction Procedure, Supporting Scheme