CAJ | 학술논문

橡胶与土的混合物已经广泛用于边坡、挡土墙以及路基回填中,将其当作一种隔震材料用于基础隔震中去,从基础隔震的角度来研究橡胶颗粒-砂混合物的动力性能.利用循环单剪仪测出不同固结压力下不同配比的橡胶颗粒-砂混合物的动剪模量,绘出动剪模量随动剪应变的变化曲线,并对其进行比较,研究表明:橡胶颗粒的存在可以有效地降低橡胶颗粒-砂混合物的动剪模量,橡胶颗粒-砂混合物的动剪模量随固结压力增大而增大.
상효여토적혼합물이경엄범용우변파、당토장이급로기회전중,장기당작일충격진재료용우기출격진중거,종기출격진적각도래연구상효과립-사혼합물적동력성능.이용순배단전의측출불동고결압력하불동배비적상효과립-사혼합물적동전모량,회출동전모량수동전응변적변화곡선,병대기진행비교,연구표명:상효과립적존재가이유효지강저상효과립-사혼합물적동전모량,상효과립-사혼합물적동전모량수고결압력증대이증대.
Rubber mixed with soil are applicable in lightweight fills for slopes,retaining walls,and embankments,utilizing it as a kind of seismic isolation material in base isolation,and see if it can produce fine seismic isolation effect.This paper researches on the dynamic properties of granulated rubber-sand mixtures from the angle of base seismic isolation.The dynamic shear modulus of the different proportions of the mixtures under different consolidation pressures were measured using cyclic simple shear test.And the curves of G-γ(where G is shear modulus,γ is shear strain)were obtained and compared.Results show that the granulated rubber can efficiently reduce the dynamic shear modulus of the rubber-sand mixture,which increases with the increase of the consolidation pressure.