《International Journal of Geomechanics》刊登“土工格室类型对土工格室加筋砂土地基的承载机理的影响”

作者：Sujit Kumar Dash

刊物：《International Journal of Geomechanics》，12卷第5期，537-548页

关键词：加筋砂土地基；加筋土工格室的类型；承载机理

摘要：本文通过一系列的模型试验来认识土工格室的材料类型在条状荷载下对土工格室加筋砂土地基的承载机理的影响。不同类型的土工格室使用不同类型的土工格栅来准备。研究参数包括基础荷载—沉降反应，填充表面的变形，土工格室的应变，传递到土工格室垫子下面的路基土的压力和在土工格室垫子里的荷载分布。试验研究结果表明，强度、刚度、开孔尺寸、土工格室材料的肋板方向对加筋砂土地基垫层具有重要影响。由高强度的土工格栅，相对小的开孔尺寸和正交的肋板制成的土工格室可以明显提高加筋砂土基础垫层的加固效果。

Effect of Geocell Type on Load-Carrying Mechanisms of Geocell-Reinforced Sand Foundations

Author: Sujit Kumar Dash

Journal: International Journal of Geomechanics, Volume 12,Number 5,537-548

Key words: Reinforced-sand foundation;Type of geocell;reinforcement;Load-carrying mechanism

Abstract: In this study, a series of model tests has been carried out to develop an understanding of the influence of the geocell material on the load-carrying mechanism of the geocell-reinforced sand foundations under strip loading. Geocells of different types were prepared using geogrids of different types. The parameters studied are as follows: the footing load-settlement response, deformation on the fill surface, strain in the geocell, pressure transmitted to the subgrade soil underlying the geocell mattress, and load dispersion in the geocell mattress. The test results indicate that the strength, stiffness, aperture opening size, and orientation of the rib of the geocell material influence the performance of the reinforced-sand foundation bed. Geocells made of geogrids of higher strength, relatively smaller size aperture opening, and ribs of orthogona orientation give better performance improvement.

原文链接：http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GM.1943-5622.0000162