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A shield support for excavation and mining

A technology of shield tunneling and pillars, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc., can solve the problems affecting the speed and safety of tunneling, no support capacity, poor practicability, etc., and achieve good social and economic benefits, structural Novel, unique and adaptable effects

Active Publication Date: 2017-11-21
BEIJING CHENGTIAN HENGYE COAL MINE EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temporary support for coal mine excavation can only realize partial support, and has no support ability for non-supported surfaces, and its practicability is poor
[0006] In addition, the existing support methods generally have the problems of complex support process and slow overall support speed, which cannot meet the requirements of mechanized and efficient mining at the working face
In addition, in the process of roadway excavation, both gun excavation and machine excavation involve the problem of advanced temporary support. The current method is relatively primitive and backward, which greatly affects the excavation speed and safety.

Method used

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  • A shield support for excavation and mining
  • A shield support for excavation and mining
  • A shield support for excavation and mining

Examples

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Effect test

Embodiment 1

[0028] as attached figure 1 , 2 As shown, a shield support for excavation and extraction according to the present invention includes a beam 1 for bearing pressure, and the beam 1 is a straight beam. The number of the crossbeam 1 is set to four, and the outer side of the crossbeam 1 is provided with five longitudinal beams 2, and one end of the longitudinal beam 2 is provided with a telescopic plate 21 that can be stretched out or retracted, and the lower sides of the two ends of the crossbeam 1 are all provided with support Beam 3, the support beam 3 is set to four, and the inside of each support beam 3 is provided with a pillar 4 that can be extended or retracted, and the inside of the support beam 3 is provided with a push jack 5 for pushing the shield support to move.

[0029] Further, a supporting connecting beam 6 is provided between the two supporting beams 3 on the same side, and the two supporting beams 3 on the same side are fixedly connected by setting the supportin...

Embodiment 2

[0034] like image 3 , 4 As shown, a shield support for excavation and recovery described in the present invention includes a beam 1 for pressure bearing, nine longitudinal beams 2 are arranged on the outside of the beam 1, and one end of the longitudinal beam 2 is provided with a The telescopic plate 21 is retracted, the support beam 3 is provided on the lower side of both ends of the beam 1, the support beam 3 is provided with a pillar 4 that can be extended or retracted, and the inside of the support beam 3 is provided. Push the jack 5.

[0035] The beam 1 is an arched beam. Described crossbeam 1 is set as four, and each crossbeam 1 comprises left crossbeam 11 and right crossbeam 12 that are arranged in pairs, and the right end of left crossbeam 11 is hinged with the left end of right crossbeam 12, and is respectively connected with left crossbeam 11, right crossbeam by setting. The beams 12 are hinged to the reinforcement beams 13, forming four arched beam assemblies. ...

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Abstract

The invention relates to a shield support for evacuating and recovery. The shield support comprises transverse beams used for bearing pressure, at least one longitudinal beam is arranged on the outer sides of the transverse beams, one end of each longitudinal beam is provided with a telescopic plate, the lower sides of the two ends of each transverse beam are provided with supporting beams, telescopic supporting columns are arranged in the supporting beams, and pushing jacks used for pushing the shield support to move are arranged on the inner sides of the supporting beams. The shield support has the advantages that one end of each longitudinal beam is provided with one telescopic plate, the telescopic plates are arranged in the supporting beams, and the pushing jacks are arranged on the inner sides of the supporting beams, so that the shield support is flexible to operate, novel and unique in structure, high in work efficiency, safe, reliable and high in adaptability to roadways under a mine well, and has good social and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of temporary support for underground tunnels in coal mines, and relates to a safety support device that can move quickly as a whole and cover the entire perimeter without ballast leakage when the surrounding coal at the top of the underground tunnels in coal mines is soft and falls. Shield support for excavation and extraction. Background technique [0002] At present, in the mining face, especially the top-coal caving mining face, the advance support of the two lanes is the focus and difficulty of the roadway support. The reason is that during the mining process of the working face, the pressure on the roof within 20 meters ahead of the two roadways is obviously greater than that of other parts of the roadway, and the leading section is also constantly changing as the working face advances. Existing support generally adopts the method of single hydraulic prop plus π-shaped steel beam, which has poor integr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04
CPCE21D23/0017E21D23/04
Inventor 王洪英徐兴强陈志才宋超
Owner BEIJING CHENGTIAN HENGYE COAL MINE EQUIP CO LTD