Soft rock shearing rheometer for achieving drying and watering cycle and dynamic disturbance

Abstract

The invention discloses a soft rock shearing rheometer for achieving drying and watering cycle and dynamic disturbance. The soft shearing rheometer for achieving drying and watering cycle and dynamic disturbance comprises a platform, wherein a preset track and a shearing rheology unit are arranged in the middle of the platform; the preset track comprises a long side; the shearing rheology unit slides in the long side direction of the preset track, and the shearing rheology unit is connected with a dynamic disturbance unit, a tangential pressurizing system, a displacement measuring system and a pulling pressure measuring system; the dynamic disturbance unit and the tangential pressurizing system coordinately adjust the shearing force of the shearing rheology unit; the displacement measuring system and the pulling pressure measuring system are correspondingly used for measuring the variation of the displacement and the pulling pressure of the shearing rheology unit; a drying and watering cycle unit for realizing the drying and watering cycle of the shearing rheology unit is arranged at the upper part of the shearing rheology unit; the stress is preset for the shearing rheology unit in the normal direction of the shearing rheology unit through a normal pressurizing system. The soft rock shearing rheometer for achieving drying and watering cycle and dynamic disturbance is applicable to the study on large-size soft rock rheology property; the measuring result is more accurate; the applicable scope is wider.

Description

technical field [0001] The invention relates to a soft rock shear rheometer, in particular to a soft rock shear rheometer which realizes dry-wet cycle and dynamic disturbance. Background technique [0002] The rheological properties of rock and soil refer to its deformation properties that change with time, mainly including creep, relaxation and elastic aftereffect. The rheological properties of rock and soil must be considered in major engineering design and stability analysis Key factor. As one of the most active factors in nature, water has a great influence on the deformation and strength properties of rock and soil, mainly including softening, erosion, chemical corrosion, hydrodynamic pressure, etc.; in addition, construction in water conservancy, transportation, mining and other fields Among them, blasting is a necessary procedure for slope modification, foundation treatment, ore mining, etc. Therefore, for the analysis of the long-term stability of these engineering ...

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Problems solved by technology

[0004] At present, the research on the rheological properties of rock and soil under dynamic disturbance mainly adopts the method of triaxial unloading rheological test. way of performing rheological tests, but these simulations clearly do not correspond to how rainfall and blasting interact in reality

In addition, in the current shear rheological test device, the deformation of the sample is mostly measured by a micrometer or a strain gauge attached to the surface of the sample, but these measurement methods are too subjective, such as the position of the micrometer or strain gauge, the amount of deformation etc., and there will be a large error in the automatic counting method when adding dynamic disturbance

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