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Study on Mechanical Property of Glauberite Salt Rock
Author(s): 
Pages: 147-150
Year: Issue:  S1
Journal: Underground Space

Keyword:  钙芒硝 盐岩 力学特性 实验研究;
Abstract: 通过基本的力学实验,得出钙芒硝盐岩这一特殊岩石类型的抗压强度为18.86MPa,抗拉强度为2.59MPa,实验发现钙芒硝盐岩是一种软岩,其破坏形式属于典型的柱状劈裂破坏,同时也说明盐岩在自然条件下是脆性材料。通过长时间的蠕变实验,回归出钙芒硝盐岩蠕变在不同应力水平下随时间变化的曲线,其抗压强度50%时的曲线方程为ε(t)=0.009t0.3265,抗压强度80%时的蠕变曲线方程为ε(t)=0.0098ln(t)-0.0014,应力水平高时其蠕变速率高于低应力水平的蠕变速率。
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