岩体变形和破坏的结构效应

• 作 者: 孙广忠 周瑞光
• 出 处: 地质科学
• 发表日期: 1980年04期
• 关键词: 结构效应 结构面 岩体 岩体变形 试件尺寸 岩体结构 岩体强度 破坏强度 节理 试件

许多学者早已发现岩体的变形和破坏与试件尺寸有关,即随着试件尺寸增大,其变形模量变小,破坏强度降低。这种现象称为尺寸效应。 近来研究表明,所谓尺寸效应实际上是岩体结构效应和试验技术条件的反映。我们研究的结果表明:岩体强度密切地与岩体内含有的结构体数有关,与岩体内结构面的发

Many scholars have long discovered that the deformation and failure of rock mass are related to the specimen size. That is, as the specimen size increases, the deformation modulus becomes smaller and the failure strength decreases. This phenomenon is called the size effect. Recent studies have shown that the so-called size effect is actually a reflection of rock mass structure effects and experimental conditions. The results of our study show that the strength of rock mass is closely related to the number of structures contained in the rock mass,