摘要
传统的桩网结构大多用于解决地基竖向沉降问题,对于利用桩网结构处理地基的横向变形及稳定的研究相对较少。文章以成渝客运专线简阳南站的工程为例,针对桩网结构在处理这类工程时的不足,在桩顶增加系梁,有效地增加桩网结构的整体横向刚度。对软弱地基中带系梁的桩网结构进行分析,探讨该结构受力及变形机理,在此基础上总结出带系梁的桩网结构在设计、施工中的关键技术,以及带系梁的桩网结构在处理斜坡软弱地基工程中的优越性,并提出设计中应注意的关键因素。
The traditional RC Pile-net Structures are are less research of RC Pile-net Structure for dealing employed largely for solving the problem of vertical settlement, there with horizontal deformation and lateral stability. In this paper, taking the project of Jianyang South Station as an example, collar beam is applied on the top of piles to strengthen entire lateral stiffness of the pile-net structure, which is not strong enough in construction. An analysis is offered on pile-net structure with collar beam in soft foundation to explore deformation mechanism when the structure is stressed, then sum- mary is made on the key technique for design and construction of pile-net structure with collar beam and the advantage of dealing with soft foundation on slope. In addition, it points out the core factors in design that should be attached with much attention.
出处
《高速铁路技术》
2012年第3期14-17,共4页
High Speed Railway Technology
关键词
斜坡软弱地基
桩网结构
系梁
横向稳定性
soft foundation on slope
pile-net structure
collar beam
lateral stability
