高速公路软基处理中浮桩和薄硬夹层的初步研究  

Preliminary Study on Floating Piles and Sandwiched Hard Layers in Strengthening Weak Foundation of Highway

作　　者：杜先 刘志祥 李小山[3] 张仪萍[4] 

机构地区：[1]杭州市建设工程质量安全监督总站,浙江杭州310005 [2]杭州经济技术开发区北方房地产公司,浙江杭州310018 [3]浙江工程学院建工学院土木系,浙江杭州310018 [4]浙江大学土木系,浙江杭州310027

出　　处：《中南公路工程》2004年第2期5-8,共4页Central South Highway Engineering

基　　金：国家自然科学基金资助项目 ( 5 0 2 780 88);浙江省自然科学基金资助项目 ( 5 0 1163 )

摘　　要：在两个模型的基础上 ,对水泥搅拌桩加固高速公路可能出现的浮桩情况 ,研究了地基总沉降和未打穿土层厚度的关系 ;对可能出现的薄硬夹层情况 ,探讨了地基总沉降和中间薄硬夹层厚度的关系。For possible floating piles in strengthening weak foundation of highway with cement mixing piles, the relationship be-tween total settlement of the foundation and thickness of underlying un-strengthened soil layer is derived on the basis of two models. In addition, for sandwiched hard layers, the relationship be-tween total settlement and thickness of the hard layer is discussed. Conclusions are drawn from the study in this paper, which should serve as a valuable reference for engineering practice.

关 键 词：高速公路 软基处理 浮桩 薄硬夹层 地基沉降 水泥搅拌桩 加固 

分 类 号：U416.1[交通运输工程—道路与铁道工程]