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Partitioned support device and method for underground large-section roadway

A support device and partitioned technology, applied in underground chambers, tunnels, tunnel linings, etc., can solve the problems of difficult to maintain roadway stability and high support costs, achieve good mechanical effects, strengthen support effects, and increase stability Effect

Active Publication Date: 2018-12-21
HUNAN UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

The support effect of underground space is very important to the safe implementation of underground engineering, especially for the excavation of various underground large-section soft rock roadways, ordinary flexible support and rigid support are difficult to maintain the stability of the roadway
In the process of supporting large-section soft rock roadways, due to the pressure around and on the top of the mine, coupled with the comprehensive influence of various factors, the requirements for roadway support are very strict; in order to achieve the expected support effect, it will cost A lot of manpower and material resources, support costs are too high

Method used

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  • Partitioned support device and method for underground large-section roadway
  • Partitioned support device and method for underground large-section roadway
  • Partitioned support device and method for underground large-section roadway

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 , figure 2 , image 3 As shown, the partitioned support device of the present invention includes a plurality of annular bodies arranged parallel to each other, and the annular bodies are provided with a plurality of beam connectors 8 symmetrically along the axial direction, and adjacent annular bodies are connected by beams. 8 are connected to form a conjoined structure of multiple annular bodies, and four telescopic anchor rods 7 and a plurality of anchor rods 14 are uniformly arranged on the annular body. Such as Figure 4 As shown, one end of the telescopic anchor rod 7 is anchored to the rock wall of the roadway through a ring body, and the other end is fixed to the small ring ring 6 in the center of the ring body, and multiple anchors are arranged on the beam connector 8. Rod 14, the anchor rod 14 fixes the ring body an...

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Abstract

The invention discloses a partitioned support device and method for an underground large-section roadway. The device comprises multiple ring bodies arranged in parallel with one another, and each ringbody is provided with multiple axially symmetrical beam-type connectors to form an integrated structure of the ring bodies. The centers of the ring bodies are provided with small ring fixing rings, four retractable anchor rods are fixed to each small ring fixing ring, and the other ends of the retractable anchor rods are fixedly anchored to the rock wall of the roadway through the ring bodies. The ring bodies are connected through the beam-type connectors to form an integral support structure, so that a support effect on the roadway is improved. At the same time, the four retractable anchor rods on each ring body are used for functionally partitioning the roadway, so that not only is a mechanical effect of supporting the roadway optimized, but also the roadway can have the functions of multiple roadways at the same time, manpower and material resources are saved, and the mining efficiency is improved.

Description

technical field [0001] The invention relates to the field of underground engineering, in particular to a partitioned support device and a support method for underground large-section roadways, which can be used in underground mine roadway engineering, chambers and tunnel projects for various purposes in underground spaces. Background technique [0002] my country is one of the countries in the world where underground space can be developed and utilized most. At present, with the substantial development of underground space, its support has gradually become a difficult problem in the development of underground engineering. The quality of underground space support is very important to the safe implementation of underground engineering, especially for the excavation of various underground large-section soft rock roadways, ordinary flexible support and rigid support are difficult to maintain the stability of the roadway. In the process of supporting large-section soft rock road...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18E21D11/28E21D20/00
CPCE21D11/18E21D11/28E21D20/00
Inventor 余伟健刘芳芳
Owner HUNAN UNIV OF SCI & TECH
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