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在边坡截切密集节理化岩体的场合,可能因大型节理与小型节理的联合而穿经岩体和岩石物质发生破坏。这类岩体强度的测定非常困难,因为实验室试验的代表性试样尺寸太大。这个困难可以通过采用非线性岩体破坏准则,或这样边坡的反分析估计岩体强度而得以克服。本文就服从非线性破坏准则(而不是线性破坏准则)的密集节理化岩体中开挖边坡所调动的抗剪强度参数的反分析提出实用方法和计算机程序。
When cutting densely jointed rock masses on slopes, it may be due to the combination of large joints and small joints that cause damage through the rock mass and rock material. The determination of the strength of such rock masses is very difficult because of the large size of representative specimens in laboratory tests. This difficulty can be overcome by using non-linear rock failure criteria, or by inverting the slope to estimate rock strength. In this paper, practical methods and computer programs are proposed for back analysis of shear strength parameters mobilized in excavated slopes in densely jointed rock masses that obey non-linear failure criteria (rather than linear failure criteria).