Rock triaxial test pressure cabin and test device thereof

Abstract

The invention provides a rock triaxial test pressure cabin and a test device thereof. The rock triaxial test pressure cabin comprises an upper end cover, a lower end cover and an axial bearing cylinder, wherein facing ends of the upper end cover and the lower end cover are provided with threads; two ends of the axial bearing cylinder are in threaded connection with the upper end cover and the lower end cover respectively; through holes with the same axis are formed in positions at the axis of the upper end cover and the axis of the lower end cover; an upper pressing rod and a lower pressing rod are arranged in the two through holes respectively; a pressure bearing pipe is arranged on the inner sides of the upper end cover and the lower end cover; an oil-liquid isolation pipe is arranged inthe pressure bearing pipe; flanges are arranged at both ends of the oil-liquid isolation pipe; a supporting pipe is inserted in the flanges; the upper end cover is provided with an oil inlet and an air outlet; a hexagonal socket cap screw is arranged in the air outlet; the oil inlet is connected with an oil inlet oiling connector; and the oil inlet and the air outlet are both connected between the supporting pipe and the pressure bearing pipe. The rock triaxial test pressure cabin and the test device thereof provided by the invention are simple in operation and easy to clean.

Description

Technical field [0001] The invention relates to the technical field of rock testing devices, in particular to a rock triaxial test pressure chamber and a testing device thereof. Background technique [0002] The current triaxial compression test is to put the rock specimen into a round steel cylinder container, put a heat shrinkable tube on the rock specimen, and then apply liquid oil pressure to provide lateral confining pressure. Drain all the oil, and the oil adhering to the instrument must be drained by blowing it. Even in this way, the hydraulic oil in the instrument cannot be completely drained. The hydraulic oil that cannot be drained is easy to stick. The clothes of the test personnel make the test process cumbersome and not concise. They are all used for large-scale indoor tests and cannot be brought to the project site for field tests. Summary of the invention [0003] (1) Technical problems solved [0004] In view of the shortcomings of the prior art, the present inven...

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Problems solved by technology

[0002] In the current triaxial compression test, the rock specimen is placed in a circular steel cylinder container, the heat-shrinkable tube is placed on the rock specimen, and then the lateral confining pressure is provided by applying liquid oil pressure. Drain all the oil, and the oil attached to the instrument must be drained by blowing. Even in this way, the hydraulic oil in the instrument cannot be completely drained. The hydraulic oil that cannot be drained is easy to stick On the clothes of the test personnel, making the test process cumbersome and not concise

And they are all used for indoor large-scale tests, and cannot be brought to the engineering site for on-site tests

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