Underground cavern system anchor rod arching effect experimental device and method

A technology for underground caverns and experimental devices, applied in underground chambers, installation of anchor rods, shaft equipment, etc., can solve problems such as the lack of arch effect of system anchor rods, and achieve easy understanding and mastery, good experimental teaching effect, and device structure simple effect

Active Publication Date: 2015-12-30
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the teaching of underground engineering construction in civil engineering, hydropower, transportation and other majors in colleges and universities, the support principle of the system anchor can only be verified by the bolt extrusion stone experiment to verify the reinforcement effect of the anchor, but for the support of the system anchor There is still a lack of relevant experiments on the arch effect of the guard

Method used

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  • Underground cavern system anchor rod arching effect experimental device and method
  • Underground cavern system anchor rod arching effect experimental device and method
  • Underground cavern system anchor rod arching effect experimental device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as Figure 1-10 As shown, the experimental device for the bolt arch effect of the underground cavern system includes a bracket composed of four supporting columns 5 and a cross bar 7. The top of the supporting column 5 of the bracket is fixedly installed with a side plate 3 through a supporting connector 4, and two side panels The plates 3 are installed symmetrically, the arched bottom plate 8 is fixedly installed on the bottom of the two side plates 3 through the connector 6, and the two fan-shaped side plates 2 are fixedly installed at the openings of the side plates 3 and the arched bottom plate 8, forming an arched The rock trough, the anchor rod 1 is installed on the arched bottom plate 8, and the arched bottom plate 8 adopts detachable connection.

[0039] Furthermore, the use of a detachable connection facilitates the removal of the arched bottom plate in the subsequent test process, thereby facilitating the test operation.

[0040] Further, there are three...

Embodiment 2

[0051] The method for testing the bolt arch effect experimental device of underground cavern system comprises the following steps:

[0052] 1. First assemble and connect the fan-shaped side plate 2, side plate 3 and arched bottom plate 8, and install the stone trough formed by them on the support column 5. Under the condition that there is no anchor rod in the stone trough, the particle size The stone material 9 of 40 ~ 60mm is loaded in the stone material tank, and then the arched bottom plate 8 of the stone material tank with the stone material 9 is disassembled, and the situation of the complete collapse of the stone material is observed.

[0053] 2. Install the arched bottom plate 8 again, and then fix the washer 101 on the external thread 103 at the bottom end of the anchor rod 1 through the nut 102, and install the assembled anchor rod 1 in the circular hole 801 of the arched bottom plate 8 superior.

[0054] 3. Reload the stone 9 with a particle size of 40~60mm into the ...

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Abstract

The invention discloses an underground cavern system anchor rod arching effect experimental device and method. The underground cavern system anchor rod arching effect experimental device comprises a bracket formed by fourth support columns and cross rods; two side plates are arranged at the top ends of the support columns of the bracket through support connecting parts, and are symmetric; an arch-shaped base plate is fixedly mounted at the bottoms of the two side plates through connecting parts; two fan-shaped side plates are fixedly mounted at openings defined by the side plates and the arch-shaped base plate to form an arch-shaped stone tank; anchor rods are mounted on the arch-shaped base plate which adopts a detachable connection manner. Through the adoption of the experimental device, the arching effect of a system anchor rod adopted by underground cavern shotcreting anchorage supporting can be intuitively reflected, and understanding of students to a supporting principle of the anchor rod system can be enhanced when the device is used for experimental teaching of underground engineering construction.

Description

technical field [0001] The device relates to the spray anchor support of underground caverns in engineering fields such as hydropower and transportation, and specifically relates to an experimental device for the mechanical action mechanism of anchor rods in the support system. Background technique [0002] At present, in the teaching of underground engineering construction in civil engineering, hydropower, transportation and other majors in colleges and universities, the support principle of the system anchor can only be verified by the bolt extrusion stone experiment to verify the reinforcement effect of the anchor, but for the support of the system anchor There is still a lack of relevant experiments on the arch effect of the guard. The experimental device for the bolt arch effect of the underground cavern system invented this time can visually display the system bolt support principle of the underground cavern, and can improve the deficiencies in the experimental teachin...

Claims

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Application Information

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IPC IPC(8): G09B25/00E21D21/00E21D11/00
CPCE21D11/006E21D21/004G09B25/00
Inventor 孟永东明华军赵春菊易军建
Owner CHINA THREE GORGES UNIV
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