Liftable loading mechanism and shear-seepage coupling testing device applying same

A technology of loading mechanism and testing device, which is used in the application of stable shear force to test material strength, measurement device, permeability/surface area analysis, etc. Force application and other issues, to achieve the effect of effective loading, stable and reliable loading

Active Publication Date: 2016-05-25
HEBEI UNIV OF TECH +1
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  • Claims
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Problems solved by technology

However, there is no shear-seepage coupling test device for two-dimensional rock samples in the prior art, and figure 1 The numerically controlled rock joint shear seepage test rig shown cannot realize the loading of two-dimensional rock samples and the application of extrusion and shear forces

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  • Liftable loading mechanism and shear-seepage coupling testing device applying same
  • Liftable loading mechanism and shear-seepage coupling testing device applying same
  • Liftable loading mechanism and shear-seepage coupling testing device applying same

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Embodiment Construction

[0047] Aiming at the cumbersome and laborious loading of rock samples in the prior art, the present invention provides a liftable loading mechanism and a shear-seepage coupling test device using it, which can be applied to rock cracks under the joint action of stress field and water flow field Under the experimental study of the failure mechanism.

[0048] It should be noted that, in the following embodiments, the liftable loading mechanism is described as a part of the shear-seepage coupling test device. Of course, in other embodiments of the present invention, the liftable loading mechanism can also be used alone or as an accessory mechanism of other equipment.

[0049] In an exemplary embodiment of the present invention, a shear-seepage coupling test device is provided. In this embodiment, the test object is a square bluestone slab A, and its dimensions are: length 500mm, width 500mm, thickness 10-20mm. There is a through crack A1 processed in the middle of the bluestone ...

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Abstract

The invention provides a liftable loading mechanism and a shear-seepage coupling testing device applying the same. The liftable loading mechanism comprises an underframe, a longitudinal loading mechanism and a lateral loading mechanism, wherein a testing region is positioned at the upper side of the underframe; the longitudinal loading mechanism is fixed above the testing region of the underframe and is of a liftable structure integrally; the lateral loading mechanism is fixed above the testing region of the underframe, is of a liftable structure integrally and is staggered from the longitudinal loading mechanism; when being used for transporting a two-dimensional rock sample, the longitudinal loading mechanism and the lateral loading mechanism ascend; after the two-dimensional rock sample is transported to the testing region, the longitudinal loading mechanism and the lateral loading mechanism descend, and apply a longitudinal force and a lateral force to the two-dimensional rock sample transported to the testing region. According to the liftable loading mechanism and the shear-seepage coupling testing device, the longitudinal loading mechanism and the lateral loading mechanism are set to be liftable, and ascend when being used for transporting the two-dimensional rock sample; during testing, the longitudinal loading mechanism and the lateral loading mechanism descend, thus realizing simple and effective loading of the two-dimensional rock sample.

Description

technical field [0001] The invention relates to the field of geotechnical engineering measuring instruments, in particular to a lifting and lowering loading mechanism and a shear-seepage coupling testing device using the same. Background technique [0002] In recent years, with the construction of a large number of large-scale projects such as energy mining, nuclear waste treatment, water conservancy projects, and underground space utilization, rock seepage issues have attracted increasing attention. , fissure seepage has an important influence on the stability of rock mass engineering. On the one hand, cracks in rock mass are one of the important causes of water damage in underground engineering. On the other hand, the existence of cracks also greatly reduces the strength of rock mass. It is well known that fluid pressure in water-bearing pores can change the stress state in rock mass because water has little compressibility and easily transmits pressure. However, the def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N15/08
Inventor 马国伟董茜茜李芳刘潇夏从礼
Owner HEBEI UNIV OF TECH
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