北京交通大学学报2016，Vol.40Issue(6)：19-24,6.DOI:10.11860/j.issn.1673-0291.2016.06.004
相似材料力学性质影响因素试验研究
Experimental study on the factors affecting mechanical properties of similar material
摘要
Abstract
Gypsum and quartz sand are chose as cementing material and aggregate of similar mate-rial respectively,which are wildly used in physical model tests of underground engineering.Uni-axial compression tests are conducted on similar material on the conditions of different model si-zes,temperatures,moisture contents and loading rates to get uniaxial compressive strength and elasticity modulus,then the influence rules of different factors on mechanical properties of similar material are analyzed.The results show that mechanical properties of similar material are affected by model sizes,moisture contents and loading rates,but little is affected by temperatures.And the mechanical properties of similar material and rock are affected by different factors for the same reasons.Therefore,to avoid those influence,it is important to strictly control the usage of water,fully mix the raw materials,reasonably control the compactness,maintain the materials that have been paved,and precisely control the loading rate when paving the large-scale similar material models.关键词
岩土工程/相似材料/强度/弹性模量/尺寸/温度/含水率/加载速度Key words
geotechnical engineering/similar material/strength/elastic modulus/size/tempera-ture/moisture content/loading rate分类
建筑与水利引用本文复制引用
任大瑞,刘保国,史小萌..相似材料力学性质影响因素试验研究[J].北京交通大学学报,2016,40(6):19-24,6.基金项目
国家科技支撑计划资助项目(2013BAB10B06) （2013BAB10B06）
