引用本文:刘慈军,何宁,董英杰,周彦章,陈涛,国建飞,周玉娟.杭州湾跨海大桥南岸接线高速公路深厚软基处理[J].水利水运工程学报,2017,(3):116-123
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杭州湾跨海大桥南岸接线高速公路深厚软基处理
刘慈军1, 何宁2, 董英杰3, 周彦章2, 陈涛1, 国建飞1, 周玉娟1
1.宁波市高等级公路建设指挥部，浙江宁波;2.南京水利科学研究院，江苏南京;3.辽宁省交通规划设计院，辽宁沈阳
摘要:
介绍了杭州湾跨海大桥南岸接线高速公路工程及区内深厚软基基本情况，通过前期先导试验段研究提出了深厚软土地基处理的原则性设计方案及其精细化设计计算方法、施工工艺和施工管理及质量控制措施，并形成高速公路深厚软土地基处理成套技术。采用该技术指导完成了杭州湾跨海大桥南岸接线高速公路工程和宁波地区其他高速公路软土地基的加固处理，分析加固处理效果，结果表明深厚软土地基处理成套技术应用效果较为理想。
关键词:  深厚软基  刚性桩复合地基  软基处理  安全稳定性  工后沉降
DOI：
分类号:TU447
基金项目:国家自然科学基金面上项目（51379131，51579152）；宁波市交通运输委科技项目（201312）
Treatment technology for deep and thick soft foundation of south linkage expressway of Hangzhou Bay Cross-sea Bridge
LIU Cijun1, HE Ning2, DONG Yingjie3, ZHOU Yanzhang2, CHEN Tao1, GUO Jianfei1, ZHOU Yujuan1
1.Ningbo High-grade Highway Construction Headquarters, Ningbo;2.Nanjing Hydraulic Research Institute, Nanjing;3.Liaoning Provincial Communication Planning & Design Insitute, Shenyang
Abstract:
This paper introduces the basic situation of a deep soft soil foundation in the south linkage expressway engineering of the Hangzhou Bay Cross-sea Bridge. Through the preliminary studies of the pilot experimental sections, a principle design scheme and the fine design and calculation methods, construction technology, construction management as well as the quality control measures for the deep and thick soft soil foundation treatment were proposed and discussed, which forms a complete technology for the deep and thick soft soil foundation treatment of the expressway. And the soft soil foundation treatment of the south linkage expressway of the Hangzhou Bay Cross-sea Bridge and other expressways in the Ningbo region was finished by the use of the complete technology. The analysis of the foundation treatment effects is carried out in this study, and from the construction practices it is found that this complete technology for the deep and thick soft foundation treatment has been successfully applied to the similar works, which shows that the application effect of the deep and thick soft soil foundation treatment technology is relatively ideal.
Key words:  deep and thick soft foundation  composite foundation with rigid piles  treatment technology for soft soil foundation  safety stability  post-construction settlement
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