A Dynamic Friction System of Rock Structure Surface Based on Double Vibration Table

A technology of dynamic friction and dual vibrating tables, which is applied in the direction of instruments, measuring devices, and mechanical devices, and can solve the problems of uncontrollable test block status and inaccurate measurement data.

Active Publication Date: 2021-04-09
TSINGHUA UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the technical problems existing in the prior art that the state of the test block cannot be controlled and the measurement data is inaccurate, the present invention provides a dynamic friction system for rock structural surfaces based on double vibrating tables, through which the test block can be well controlled, And the measurement data obtained are more accurate

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  • A Dynamic Friction System of Rock Structure Surface Based on Double Vibration Table
  • A Dynamic Friction System of Rock Structure Surface Based on Double Vibration Table
  • A Dynamic Friction System of Rock Structure Surface Based on Double Vibration Table

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Embodiment Construction

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The present invention provides a dynamic friction system for rock structural surfaces based on double vibrating tables, the structure of which is as follows figure 1 shown, including:

[0053] Fixing component 10, force applying component 20, monitoring component 30, data processing component (not shown in the figure), tested block 50, pipe rack 60.

[0054] Fixing assembly 10 comprises: upper test block fixing groove 11, lower test block fixing groove 12, acoustic emission cover plate 13, frame 14, support frame 15;

[0055] Active force applying assembly 20 comprises: transmission rod 2...

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Abstract

The invention relates to a dynamic friction system for rock structural surfaces based on double vibrating tables, wherein the left end of a transmission rod (21) is fixed on the first vibrating table (23) through a pipe frame (60), and the right end is passed through a tension pressure sensor (31) It is connected with the middle test block (52); the upper test block (51) and the lower test block (53) are respectively arranged on the upper and lower sides of the middle test block (52), and the upper test block (51) and the lower test block (53) pass the lower test block respectively. The block fixing groove (12) and the upper test block fixing groove (11) are directly or indirectly fixed on the second vibrating table (24); the acoustic emission cover (13) with the acoustic emission probe (34) inserted is placed on the upper test block (51 ), the jack (22) is fixed on the top of the frame (14), and pushes down to tighten the acoustic emission cover (13); the free end of the displacement sensor (32) is preloaded to tighten the center of the middle test block (52) ; Acceleration sensor (33) is placed on the transmission rod (21). The invention can change the test environment, has high true reduction degree and strong adaptability.

Description

technical field [0001] The invention relates to the field of structural surface friction experimental equipment, in particular to a dynamic friction system for rock structural surfaces based on double shaking tables. Background technique [0002] Rock mass structural planes are the original beddings and layers existing in the rock mass, and various types of geological interfaces such as faults, joints, cleavages, and interlayer dislocation planes formed in the geological process later. Weak structural planes refer to filling A structural surface of a weak material with a certain thickness. The stability of rock structural planes or weak structural planes directly affects the safety of facilities, such as earthquakes, friction between tunnel surrounding rock and lining, and deformation of dam valleys due to faults or slippage of weak structural planes. The research on the friction characteristics of structural surfaces or weak structural surfaces has been paid more and more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 刘耀儒张凯杨强郑双凌
Owner TSINGHUA UNIV
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