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许多读者可能都已见过和熟悉一般的材料试验机了。它是用来测定和研究材料的强度特性和变形特性的。现时,由于工程规模的发展以及对材料(特别是作为建筑物地基或周围介质的岩石)试验的更高要求,出现了所谓的刚性试验机。这种新型的试验机,有助于研究材料破坏以后的强度和变形性质,以及研究在岩体中开挖时支护与围岩联合作用的机理。实际上,一般的材料试验机也是具有一定刚度的,因
Many readers may have seen and are familiar with the general material testing machine. It is used to determine and study the strength and deformation characteristics of materials. Nowadays, so-called rigid testing machines have emerged due to the development of engineering scale and higher demands on materials (especially rock as building foundation or surrounding medium). This new type of testing machine is helpful to study the strength and deformation properties after material destruction, and to study the mechanism of the joint action of supporting and surrounding rock during excavation in rock mass. In fact, the general material testing machine also has a certain degree of rigidity.