内外边界施加温度荷载的中空圆柱试样热固结试验
发布时间：2018-08-08 19:59
【摘要】：研制了一个轴对称的适用于中空圆柱试样的热固结试验装置。该装置可独立施加和控制试样内、外的温度荷载,并保持试样径向温度梯度的存在,且可施加径向固结压力,适用于特定的温度和应力耦合作用路径的试验。进行了一种饱和黏性土的热固结试验,即在试样内边界和外边界交替逐级施加范围为25℃~75℃的温度荷载,包括径向压力为50,100,150,200 k Pa的4种情形,分析了孔隙水压力及热固结体应变随时间的演化过程。研究表明,加热等级和加热次序不同,在同样的最终温度荷载下孔隙水压力稳定后的最大值有较大差异而体应变也不同,实际上反映了温度荷载作用路径对试样热固结效应的显著影响。
[Abstract]:An axisymmetric thermal consolidation test device for hollow cylindrical specimens has been developed. The device can independently apply and control the temperature load inside and outside the specimen, and maintain the existence of radial temperature gradient of the specimen. It can also apply the radial consolidation pressure, which is suitable for the test of specific temperature and stress coupling path. A thermal consolidation test of saturated clay is carried out, in which the internal and external boundaries of the specimen are alternately applied at 25 鈩，
本文编号：2172888
[Abstract]:An axisymmetric thermal consolidation test device for hollow cylindrical specimens has been developed. The device can independently apply and control the temperature load inside and outside the specimen, and maintain the existence of radial temperature gradient of the specimen. It can also apply the radial consolidation pressure, which is suitable for the test of specific temperature and stress coupling path. A thermal consolidation test of saturated clay is carried out, in which the internal and external boundaries of the specimen are alternately applied at 25 鈩，
本文编号：2172888
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