Change in Soil Porosity under Load

International Conference on Construction, Architecture and Technosphere Safety 2017

土木建筑工程

Dyba, V.P.^1 ; Skibin, E.G.^1

Department of Industrial Civil Engineering Geotechnics and Foundation Engineering, Platov South-Russian State Polytechnic University (NPI), St. Prosvescheniya 132, Rostov region, Novocherkassk

346428, Russia^1

关键词: Compression pressures;    Critical state models;    Laboratory test;    Loading surface;    Process of soil;    Rigid environment;    Strength characteristics;    Vertical pressure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/262/1/012225/pdf
DOI  :  10.1088/1757-899X/262/1/012225

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The theoretical basis for the process of soil compaction under various loading paths is considered in the article, the theoretical assumptions are compared with the results of the tests of clay soil on a stabilometer. The variant of the critical state model of the sealing plastic-rigid environment is also considered the strength characteristics of which depend on the porosity coefficient. The loading surface is determined by the results of compression and stabilometrical tests. In order to clarify the results of this task, it is necessary to carry out stabilometric tests under conditions of simple loading, i.e. where the vertical pressure would be proportional to the compression pressure σ3 = kσ1. Within the study the attempts were made to confirm the model given in the beginning of the article by laboratory tests. After the analysis of the results, the provided theoretical assumptions were confirmed.