摘要
本文简述了桩—网复合地基的组成和工作原理 .在“网—桩—土”体系的共同作用和堤坝 (路堤 )荷载情况下 ,将网材和复合地基垫层作为一个整体网垫加以考虑 ,以薄板模拟网垫单元 ,基于薄板变形理论和Winkler弹性地基模型 ,提出了路基工后沉降量计算方法 ,所导出的计算式综合反映了荷载大小、网及桩间土的刚度、复合地基置换率、桩土应力比等主要因素的影响 ,并给出工程算例 .
The construction and working mechanism of pile-net composite foundation are presented. Under te action of embankment the net and the cushion of composite foundation are regarded as an integrated structure. The net is simulated by means of a sheet plate. based on the deformation theory of sheet plate and Winkler's elastic foundation model a method for calculating the residual settlement is developed. The deduced formula reflects the effects of load magnitude, rigidity of net and the soil between the piles, the replacement ratio of composite foundation, pile-soil stress ratio and etc. An example is given for demonstration.
出处
《水利学报》
EI
CSCD
北大核心
2002年第4期23-27,共5页
Journal of Hydraulic Engineering
