【摘 要】
：
In order to study the wetting deformation characteristics of the metamorphic soft rock embankment filler,large-scale triaxial tests are conducted with doubl
【机 构】
：
SchoolofHighway,Chang'anUniversity,Xi'an,710064,China
【出 处】
：
2016年交通基础设施和材料国际会议
论文部分内容阅读
In order to study the wetting deformation characteristics of the metamorphic soft rock embankment filler,large-scale triaxial tests are conducted with double lines method respectively.Variation of wetting strains(i.e.,the differences between strains of dry and saturated states under the same vertical deviator stress)is analyzed.Results show that,under different confining pressures,the wetting strain △εw1 is increased with the increase of vertical deviator stress(σ1-σ3),the curve present weak strain hardening.△εw1-(σ1-σ3)the curve have turning points under different confining pressures,the turning points position are located in about 70%of the maximum deviator stress.The position of the turning points gradually move back with the increase of confining pressures,show that confining pressure is not only influence the magnitude of wetting deformation,also influence its change rules.There are two development stages of filler wetting strain curves.The size of the critical wetting strains are closely related to the ratio of vertical deviator stress and confining pressure.In contrast with the metamorphic soft rock embankment the value ofα and αu under the condition of actual work,the development law of the wetting deformation after the water is analyzed.
其他文献
One way for utilizing construction waste brick is to synthesize construction waste composite powder materials(CWCPM)by mixing construction waste brick powde
Temperature fields and stresses of Cross Tension Retard-bonded Prestressed Concrete Pavements(CTRPCP),which are constituted by cross tension retard-bonded p
Mechanical property of cement mortar is closely related to polymer modifier type.Four kinds of polymer latex including Chloroprene Rubber(CR),Styrene Butadi
During hardening behavior of concrete,shrinkage is induced.While,new poured pavements slab is subject to constraint by subsurface structure which always aro
The tensile stresses of concrete pavements corners,edge centers,and surface centers under heavy traffic are analyzed as the pavements already deflected unde
Due to the huge difference of material properties,the bonding condition between asphalt layer and concrete leveling course on concrete bridge deck is very c
In order to improve fundamental understanding and facilitate evaluation of mineral aggregate morphological characteristics,this paper herein presents a Four
In this study,to overcome the high cost of accelerated loading test,a small-scale laboratory experiments were developed and conducted toward the potential d
In order to analyze the influences that cement has on the mechanical properties of asphalt cold recycling mixtures in seasonally frozen soil region,taking a
Grain sizes play significant roles in determining internal structure and mechanical behaviors of a granular assembly.The main objectives of this research ar