A gob-side entry retaining method and its filling method

A technology of flexible formwork and empty entry retaining, which is used in earth-moving drilling, wellbore lining, tunnel lining, etc., can solve the problems of large lateral and longitudinal deformation, lateral or longitudinal rupture, and difficulty in pipeline installation, and achieves enhanced crack resistance, The effect of uniform force and fast construction speed

Active Publication Date: 2017-12-01
SHAANXI PIONEERING ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fiber flexible formwork with horizontal and oblique double-stretch in gob-side entry retention.
[0004] Another object of the present invention is to provide a filling method using flexible double-drawn fiber formwork for gob-side entry retention, which solves the problems of difficult pipeline installation and slow construction

Method used

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  • A gob-side entry retaining method and its filling method
  • A gob-side entry retaining method and its filling method
  • A gob-side entry retaining method and its filling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1, a filling method, using a gob-side entry retaining horizontally inclined double-stretched fiber flexible formwork, such as Figure 6 As shown, it is specifically implemented in the following ways and steps;

[0063] Step 1. According to the size of the position that needs to be filled between the roadway roof and the roadway floor in the gob-side entry retention, use wooden point columns 14 on the side of the goaf to block gangue support, and use single hydraulic props 15 on the side of the gob-side entry retention roadway Hanging nets to block gangue support;

[0064] Step 2. According to the length of filling, place several flexible formworks of gob-side entry retaining with double-stretched fibers;

[0065] Step 3. According to the size of the filling height, select the sleeve 11 on the top transverse flange 3 of the main body formwork 1, and penetrate the steel bars, and at the same time wear the steel bars on the transverse flange 3 in the middle of ...

Embodiment 2

[0073] Embodiment 2, a filling method, using a gob-side entry retaining horizontally inclined double-stretched fiber flexible formwork, such as Figure 7 As shown, it is specifically implemented in the following ways and steps;

[0074] Step 1. According to the size of the position that needs to be filled between the roadway roof and the roadway floor in the gob-side entry retention, use the gangue-blocking hanging formwork support 13 on the side of the goaf to block gangue support, and use the single hydraulic pressure on the side of the gob-side entry retention roadway. Pillar 15 hangs the net and carries out gangue retaining support;

[0075] Step 2. According to the length of filling, place several flexible formworks of gob-side entry retaining with double-stretched fibers;

[0076] Step 3. According to the size of the filling height, select the sleeve 11 on the top transverse flange 3 of the main body formwork 1, and penetrate the steel bars, and at the same time wear th...

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Abstract

The invention discloses a flexible formwork for gob-side retaining with double-stretched fibers, which comprises a main formwork connected with a top formwork, and the main formwork is provided with pouring ports, anchor bolt holes, transverse flanges and vertical wings. There is a sleeve connected to the transverse flange, and a reinforcement hole is provided on the top formwork, and a plurality of transverse ties and oblique ties are arranged in the main formwork, and both ends of the transverse ties are fixed to the main body by reinforcing rings. On the two opposite sides of the formwork, the two ends of the diagonal stays are obliquely fixed on the two connected surfaces inside the main formwork through the reinforcement ring. The main formwork is also provided with reserved holes, which are flexible molds. The cloth is prefabricated into a tubular structure. The template can limit the lateral deformation of the flexible template after filling, so that the flexible template is evenly stressed during filling, and the filling body has high strength and strong crack resistance. The invention discloses a method for soft-formed concrete construction by adopting cross-inclined double-stretched fiber flexible formwork in gob-side entry retention. The method is convenient for pipeline installation and fast in construction speed.

Description

technical field [0001] The invention belongs to the technical field of coal mining support in coal mines, and relates to a gob-side entry retaining horizontally inclined double-drawn fiber flexible formwork, and also relates to a filling method using gobside entry retaining transversely inclined double-drawn fiber flexible formwork. Background technique [0002] Application number: 200910023718.1, announcement number: 101649744, announcement date: 2011.12.28, the title of the invention is "device and method for pouring concrete continuous wall along gob-side entry in mining face", which involves fiber flexible formwork and its construction method, but the During the use of the template, the lateral and longitudinal deformation of the template is relatively large, and even broken. At the same time, in high-gas mines, mines prone to spontaneous combustion of coal seams, and mines with rich water in surrounding rocks, it is necessary to construct such as gas drainage pipes, nit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
Inventor 王晓利张智强
Owner SHAANXI PIONEERING ARCHITECTURAL TECH
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