True triaxial high-temperature test furnace, test system and method

Abstract

The invention discloses a true triaxial high-temperature test furnace. The test furnace comprises a furnace body and a temperature control system, and further comprises two Z-direction loading rods, two X-direction loading rods and two Y-direction loading rods, wherein the two Z-direction loading rods are arranged outside the furnace body, extended to the interior of a hearth of the furnace and are opposite in position, the two X-direction loading rods are opposite in position, and the two Y-direction loading rods are opposite in position; the Z-direction loading rods, the X-direction loadingrods and the Y-direction loading rods are arranged on the wall surface of the furnace body in a sliding fit mode; and in the loading process,the opposite end surfaces of the two Z-direction loading rods, the opposite end surfaces of the two X-direction loading rods and the opposite end surfaces of the two Y-direction loading rods jointly define a pressure chamber. The combined type triaxial high-temperature test furnace is formed by mainly utilizing the heating furnace body and the directional independent loading rods and has the advantages that the test temperature can be accurately controlled, a stable high-temperature environment in a high-temperature true triaxial test can be formed, synchronous loading of the static loads or the dynamic loads in the three mutually-perpendicular directions can be completed in the high-temperature environment, meanwhile, the applicability is high, assembling is convenient, a sample is convenient to replace, and the like.

Description

technical field [0001] The invention belongs to the technical field of rock sample heating devices, and in particular relates to a true triaxial high-temperature test furnace, a test system and a method. Background technique [0002] In recent years, minerals and other resources have gradually entered into in-depth mining. At present, a large number of mines in my country have entered the mining depth below 1,000 meters. In the deep complex geological environment, sudden engineering disasters such as rockburst and slab cracking have increased. The gradient rises. The influence of engineering factors such as high ground temperature and high ground stress has become increasingly prominent. The mining behavior in the process of resource exploitation makes the high-temperature rock mass subject to cyclic stress loading and unloading, and the complex stress action path makes the mechanical properties of the high-temperature rock mass quite complicated. The true triaxial test ca...

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Problems solved by technology

Although the patent 201610848074.X discloses a rock thermophysical parameter testing system under high temperature and high pressure, the whole device has the disadvantages of uneven heating, low heating temperature, and poor adaptability, making it difficult to realize three-axis multi-path loading and unloading at real-time temperature The load test cannot truly reflect the real mechanical properties of deep high-temperature rock mass

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