Experimental study on the factors affecting mechanical properties of similar material
REN Darui
LIU Baoguo
SHI Xiaomeng
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.
Keywords：geotechnical engineeringsimilar materialstrengthelastic modulussizetempera-turemoisture contentloading rate
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 19-24 )