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结构面内充填物厚度对结构面抗剪强度的影响是结构面力学性质的重要问题之一。对此,国内外都有研究,早在1955年上犹江电站坝基岩体力学原位试验对这个问题就曾进行过探讨,R.E.Goodman(1969年)用云母粉、R.D.Lama(1978年)用高岭土也曾对这个问题进行过模拟研究。根据一个工程岩体力学试验的需要,我们在1978年利用中型剪、采用原岩结构面充填软弱物质的办法,对这个问题也进行了一组试验研究。
The influence of the thickness of filling material on the shear strength of the structural surface is one of the important issues of the mechanical properties of the structural surface. In this regard, both domestic and foreign studies have been conducted. As early as 1955, the in situ test of the rock mass of the dam foundation of the Shangyoujiang Hydropower Station had discussed this issue. It was used by RE Goodman (1969) with mica powder and RDLama (1978). Kaolin has also conducted a simulation study on this issue. According to the needs of an engineering rock mechanics test, in 1978 we used medium-sized shears and used raw rock facets to fill in soft materials. We also conducted a series of experimental studies on this issue.