桩承式加筋体变形与受力的理论计算方法综述  

Review of the Analytical Methods of Stress and Strain in the Pile-Supported Geosynthetic Load Transfer Mat

作　　者：李晓龙[1] 史宏彦[1] 

机构地区：[1]广东工业大学土木与交通工程学院,广州510006

出　　处：《土工基础》2016年第4期481-485,494,共6页Soil Engineering and Foundation

摘　　要：针对桩承式加筋体变形和受力的理论计算研究,从分布荷载和计算原理两个方面总结了国内外桩承式加筋体的理论计算方法,并对各种方法的特点进行了分析。分析表明,反三角形分布的荷载形式比均布载和三角形荷载更加合理;二维计算中的德国规范法相对于抛物线法和圆弧线法更能准确描述加筋体的变形,但无法反映拉力沿长度方向的变化;三维计算的薄板理论方法能够分析如土拱格栅的网格状加筋体,但不适用土工膜等膜材类加筋体。This paper provides the-state-of-the-art review of analysis methods of the pile supported geosynthetic load transfer mat.The load distributions and the bases for the analysis of the load transfer mat of each method are discussed in the paper.The results indicate that the inverse triangular load distribution assumption is more reasonable comparing with the uniform or triangular load distributions.For the two dimensional analysis methods,the deformation in the geosynthetics assumptions defined by the parabola and circular methods in Germany design code are better compared with other methods;however,the Germany design code method could not estimate the change of tensile stress along the longitudinal direction.The plate assumptions in the three dimensional analysis can be applied in the geogrid reinforcements but it is not applicable to the geotextiles or geomembranes.

关 键 词：桩承式加筋体 加筋体荷载 筋材变形 筋材拉力 

分 类 号：TU473[建筑科学—结构工程]