公路隧道模型试验相似材料试验研究

满足相似关系的模型材料是模型试验的基础.在调研相似材料研究现状的基础上,通过大量的配比试验研制出满足相似条件的模型材料,该相似材料是以重晶石粉、石英砂作为骨料,松香、酒精溶液作为胶结剂.材料力学试验表明,材料具有容重大、泊松比基本满足软岩的要求、抗压强度和弹性模量低、力学性能稳定、可重复使用等特点.

Research on Analogous Material Model Test for Highway Tunnels

Model material which satisfies the similarity criteria is the basis of model test. According to the analogous material model test status and based on hundreds of compounding tests, a material which satisfies the similarity conditions of model test was worked out. It was mixed with barite powder and sand as aggregate, the solution of rosin and alcohol as glue. Mechanical tests of specimens indicated that the material possesses some advantages as follows: high density, with Poisson's ratio basically in line w...