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随着电-液闭环伺服控制及程序控制材料试验机的发展和完善,新的岩石力学试验技术不断出现,岩石的本质性的性态不断被揭示出来。然而,由于岩石本身的抗拉强度较小,破坏过程较快,因而至今尚未见有岩石直接拉伸的载荷-位移全过程试验结果发表。巴西法是一种在压应力作用下的拉伸强度试验方法,它可以用来求算岩石的抗拉强度。以前,曾有个别学者作过巴西法载荷-位移全过程试验,取得了一些可喜的成绩。然而到目前为止,尚未见到这方面的较系统的资料发表。
With the development and perfection of electro-hydraulic closed-loop servo control and program control material testing machines, new rock mechanics test technologies have emerged and the nature of rocks has been continuously revealed. However, due to the small tensile strength of the rock itself and the faster destruction process, no complete load-displacement test results have been published. The Brazilian method is a tensile strength test method under compressive stress that can be used to calculate the tensile strength of a rock. In the past, there have been individual scholars who have performed Brazilian load-displacement whole-course tests and have achieved some encouraging results. However, so far no systematic data has been published in this area.