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在生产实践中,有许多矿山工程(如井巷、坑洞、采场等),就其稳定性而言,不仅是取决于某一顶板岩层的性质,而是与上覆几种岩层的性质及其相互作用的情况有较密切的关系,特别是开采层状矿体时,这种情况更为普遍和突出。这些开挖空间及其周围岩层所组成的结构的力学特性究竟如何,迄今为止的岩石力学研究成果还不能作出令人满意的回答。虽然现有的岩石力学研究成果对于定性解释生产实践中的一些现象(如片冒,垮塌、地表沉降、冲击地压等)具有较大的作用,但由于没有充分考虑岩层之间的相互作用情况,因而还不能准确地计算出矿山工程结构的强度和变形。要解决这些矿山工程结构的强度、变形及稳定性问题。首先必须对受压缩应力作用下复合岩石的
In production practice, there are many mine projects (such as roadways, potholes, stopes, etc.) whose stability depends not only on the nature of a roof rock but on the nature of the overburden And its interaction is more closely related to the situation, especially in the exploitation of layered ore body, this situation is more common and prominent. What are the mechanical properties of the structure composed of the excavation space and the surrounding strata, and the rock mechanics research so far has not been able to make a satisfactory answer? Although the existing research results of rock mechanics have a great effect on the qualitative interpretation of some phenomena in production practice (such as run-off, collapse, surface subsidence, rockburst, etc.), the interaction between rock layers is not fully considered , So it can not accurately calculate the intensity and deformation of the mine engineering structure. To solve these mine engineering structure strength, deformation and stability issues. First, the composite rock must be subjected to compressive stress