Construction technology for formwork making and filling among gob-side entry retaining supports

A technology of construction technology and empty entry retaining, which can be used in fillings, safety devices, mining equipment, etc., can solve problems such as hidden safety hazards and delay in support, and achieve improved safety, improved work efficiency, and saved production materials. Effect

Active Publication Date: 2013-12-04
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems existing in the existing gob-side entry retaining construction technology, the support is lagging behind, and the support has potential safety hazards, it provides a construction process for molding and filling between gob-side entry retaining frames

Method used

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  • Construction technology for formwork making and filling among gob-side entry retaining supports

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Embodiment Construction

[0008] Such as figure 1 As shown in the figure, a construction process of moulding and filling between the frames of the roadway remaining along the goaf is to leave a space in the support group of the tunneling face where the support needs to be reserved, and the support 1, 3 on both sides of the space The supporting frame 2 is installed on the upper part, and then the mold 4 filling operation is performed in the safe space formed between the supporting frame 2 and the two brackets 1 and 3.

[0009] After the mold is completed, the filling operation will be carried out. After the filling is completed, the normal coal cutting operation will start. When the coal mining face is advanced enough for the mold making distance and the filling material is solidified, the mold will be demolded for the next mold making operation. When the shearer cuts enough for 4 cycles and reaches enough molding space, mold making and filling in time; after filling, continue cutting coal, and work in thi...

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Abstract

The invention relates to the supporting technology of roadways of coal mines, in particular to a construction technology for formwork making and filling among gob-side entry retaining supports. The construction technology comprises the steps that a vacant site is reserved at the position needing to be provided with supports in a support set of a tunneling work face, a supporting frame is arranged on the supports on the two sides of the vacant site, and then formwork making operation and the filling operation are carried out in a safe space formed among the supporting frame and the two supports. According to the construction technology for the formwork making and the filling among the gob-side entry retaining supports, the stability of hydraulic supports is used, a traditional timber crib is replaced, the hidden danger that the supporting timber crib is pushed down when pressure is applied to top plates is removed, and the safety of the formwork making and filling process is improved; production using materials such as plates and beams are no longer used, and the production using materials are saved; the influence on coal cutting by solidification of filled materials is reduced, and working efficiency is improved.

Description

Technical field [0001] The invention relates to a coal mine tunnel support technology, in particular to a mold making and filling construction technology between the roadway frames left along the goaf. Background technique [0002] In the process of underground mining operations in coal mines, the technology of retaining lanes along goafs can reduce the amount of roadway excavation, save excavation costs, ease connection tension, maximize resource recovery, and extend mine life. It has significant economic and social benefits and has strong use and promotion value. The method and process of making molds when filling the lanes are related to the strength of the filling wall and the roofing capacity, the complexity of the entire process and the safety of the construction process, so the research on the method and process of making molds is of great significance. The mold is made with the template bracket, which has a high degree of automation and simple procedures, but the amount ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00
Inventor 宋乃彬李鹏飞李小芳赵景富郭佳林张小斌
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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