在负温条件下,对红层与粘土地层试样进行物理力学性能试验,结果表明,红层地层冻结温度较低、导热系数大、冻胀率小,得出冻结红层单轴抗压强度与弹性模量变化特征,以及与冻结粘土的不同点,为红层地层冻结法设计与施工提供依据。
Under minus temperatures,the experiments on the physical and mechanical properties of red and clay stratum samples were carried out.The results showed that the red stratum possesses the following characteristics such as low freezing temperature,good thermal conductivity and small frozen-heave ratio.The uniaxial compressive strength and elastic modulus variation characteristics of frozen red stratum were obtained.The differences between frozen red and clay strata were also discussed.All of these provide a basis for the design and construction of red stratum freezing method.