CN203685245U - Flexible formwork gob-side entry retaining hydraulic support - Google Patents
Flexible formwork gob-side entry retaining hydraulic support Download PDFInfo
- Publication number
- CN203685245U CN203685245U CN201420072675.2U CN201420072675U CN203685245U CN 203685245 U CN203685245 U CN 203685245U CN 201420072675 U CN201420072675 U CN 201420072675U CN 203685245 U CN203685245 U CN 203685245U
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- Prior art keywords
- gob
- hydraulic
- entry retaining
- side entry
- narrow body
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- 238000009415 formwork Methods 0.000 title claims abstract description 32
- 239000010878 waste rock Substances 0.000 claims description 12
- 238000005065 mining Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000003203 everyday effect Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 14
- 239000002023 wood Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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Abstract
The utility model discloses a flexible formwork gob-side entry retaining hydraulic support which comprises a base, hydraulic supporting columns arranged on the base, and a top beam connected with the hydraulic supporting columns. The flexible formwork gob-side entry retaining hydraulic support is formed by connecting and combining two rows of narrow hydraulic supports. Each row of narrow hydraulic supports comprise front narrow supports and rear narrow supports which are connected through a front and back pushing- pulling jack. Each row of narrow hydraulic supports are provided with front protection plates, gangue baffles, four-bar linkages and single-bar linkages, the four-bar linkages and the single-bar linkages are connected between the top beam and the base, the left narrow supports are provided with side portion gangue baffles, and hooks are arranged on the sides, close to the gob-side entry retaining, of the right narrow supports. Mechanization of gangue blocking, supporting, roof cutting, deviation correcting, self moving and mold hanging in a gob is achieved, safety of operators is guaranteed, the flexible formwork gob-side entry retaining hydraulic support is suitable for quick gob-side entry retaining with the push mining speed about 15 m every day, production is not influenced, and operation space is provided for concrete continuous wall pouring for gob-side entry retaining.
Description
Technical field
The utility model relates to coal face hydraulic support, is specifically related to a kind of Flexible formwork assembly gob side entry retaining hydraulic support.
Background technology
Coal is the basis of Chinese society and the national economic development; occupy for a long time the more than 70% of AND ENERGY RESOURCES CONSUMPTION IN CHINA; coal is as non-renewable resources simultaneously; answer protective mining, but China generally stays and establishes protection pillar in coal mining; not back production of coal column is lost in down-hole; coal pillar width major part is at 20-35m, and loss of coal pillar accounts for the more than 20% of coal mining loss, and national 1 year because reserved coal pillar Coal Loss is up to more than 300,000,000 tons.
Edge air gallery technology is exactly that a crossheading of a work plane is remained to a crossheading as Adjacent Working Face, and a lane is dual-purpose, and two work planes are same with a tunnel.Generally in the middle of two work planes, be provided with coal column, two work planes have four crossheadings, by just having realized two work planes after gob side entry retaining with three tunnels, have lacked a coal column, have lacked a tunnel simultaneously, have improved business efficiency.
Flexible formwork assembly concrete gob side entry retaining is generally to close on goaf side in tunnel, coal-face face end support rear to build continuous concrete wall one using Flexible formwork assembly as concrete blinding, utilizes row's wood point post supporting roof, keeps off cash and hang Flexible formwork assembly by goaf side.Flexible formwork assembly is made and is formed by woven fabric, is shaped as cuboid, and two upper lateral parts have the edge of a wing, be used for hanging soft mould, Flexible formwork assembly has from shaping function, is fixedly hung by monomer and edge of a wing colligation in goaf side rail point post, lane, and the concrete injecting in Flexible formwork assembly forms Flexible formwork assembly concrete.Because wood point post enabling capabilities is little, and the construction of the above large mining height wood point post of 3m is very difficult, consumption of wood is large, in order to save timber, and environmental protection low-carbon (LC), adopt the replaceable wood point of gob side entry retaining support post, increase supporting intensity, improve and cut top effect, reduce gob side entry retaining roof pressure, realize mechanization and hang Flexible formwork assembly, ensure construction operation personal security.
But for the support of Flexible formwork assembly concrete gob side entry retaining technique made compared with ordinary stent, need to consider greater functionality, mainly comprise following 5 points: the one, this support must have the effect of gear cash, prevents from that goaf spoil from tumbling to hurt sb.'s feelings; The 2nd, under the effect of spoil lateral pressure, support can not be toppled over; The 3rd, under the spoil lateral pressure effect of goaf, have from moving ability, and can prevent sideslip, there is bias adjusting function; The 4th, there is the mould of extension function; The 5th, can closely follow thereafter and move with the reach of working face ended support, and effective support top board, because Flexible formwork assembly concrete does not solidify, hanging the concrete part support of Flexible formwork assembly can not move in 8 hours after body of wall has been built, simultaneously, after solidifying, hardening of concrete hangs concrete part support still removable, and can't be by goaf spoil and body of wall pressure at both sides asphyxia by external pressure on the chest and abdomen.Only have the above-mentioned functions of realization, just can make Flexible formwork assembly concrete gob side entry retaining technique meet and day push to adopt 15m, gob side entry retaining requirement is carried out in mechanization supporting goaf.
Summary of the invention
The purpose of this utility model be to provide replace wood point post, gear cash is effective, supporting intensity is high, have cut top function, simple in structure, do not affect back production, safe and reliable, have and hang mould function, protect the effective a kind of Flexible formwork assembly gob side entry retaining hydraulic support in top.
The technical solution of the utility model is:
A kind of Flexible formwork assembly gob side entry retaining hydraulic support, comprise base, be located at the hydraulic prop on base, the back timber being connected with hydraulic prop, it is characterized in that Flexible formwork assembly gob side entry retaining hydraulic support adds up to four narrow body hydraulic supports to arrange to connect by two rows and combines, the narrow body support frame of every row comprises the narrow body support frame in two of front and back connecting by front and back push-and-pull jack, the narrow body hydraulic support of every row is provided with the front side guard board and the afterbody waste rock board that are connected with back timber, between the back timber of every narrow body support frame and base, front portion is connected with a monotroded bar, middle part is connected with the single hydraulic prop of 3-4 root, rear portion is connected with four connecting rods, the narrow body support frame of left part is provided with the sidepiece waste rock board being connected with back timber and the fixing waste rock board being connected with base by goaf side, the narrow body support frame of right part is provided with 5-20 spaced apart U-shaped hook by gob side entry retaining one side back timber, between the base of the narrow body support frame of two rows, connect by passing through top cross push-and-pull jack between the connection of bottom transverse push-and-pull jack and back timber.
The beneficial effects of the utility model are: the utility model realized replace wood point post, gear cash is effective, supporting intensity is high, simple in structure, do not affect back production, safe and reliable, have and hang mould and cut top function, protect the effective object in top, be widely used in the industry such as colliery, metallurgy.
Brief description of the drawings
Fig. 1 is the utility model structural front view;
Fig. 2 is the utility model structure top view;
Fig. 3 is the utility model structure rear elevation;
Fig. 4 is that the utility model is at coal-face plane of arrangement schematic diagram.
In figure: the narrow body support frame of 1-left part, the narrow body support frame of 2-right part, the narrow body support frame of 3-the 3rd row, the narrow body support frame of 4-the 4th row, 5-bottom transverse push-and-pull jack, 5-1-top cross push-and-pull jack, 6-base, 7-hydraulic prop, 8-back timber, side guard board before 9-, 10-afterbody waste rock board, 11-tetra-connecting rods, the monotroded bar of 12-, 13-sidepiece waste rock board, 13-1-fixes waste rock board, 14-coal-face, 15-face end hydraulic support, 16-gob side entry retaining, 17-individual prop, 18-crossheading, 19-Flexible formwork assembly concrete wall, push-and-pull jack before and after 20-, 21-U type hook.
Detailed description of the invention
Below in conjunction with accompanying drawing, summary of the invention is further illustrated:
Shown in Fig. 1～Fig. 4, the utility model is a kind of Flexible formwork assembly gob side entry retaining hydraulic support, comprise base 6, be located at the hydraulic prop 7 on base 6, the back timber 8 being connected with hydraulic prop 7, it is characterized in that Flexible formwork assembly gob side entry retaining hydraulic support adds up to four narrow body hydraulic supports to arrange to connect by two rows and combines, the narrow body support frame of every row comprises the narrow body support frame in two of front and back connecting by front and back push-and-pull jack 20, the narrow body hydraulic support of every row is provided with the front side guard board 9 and the afterbody waste rock board 10 that are connected with back timber 8, between the back timber 8 of every narrow body support frame and base 6, front portion is connected with a monotroded bar 12, middle part is connected with 4 single hydraulic props 7, rear portion is connected with four connecting rods 11, the narrow body support frame 1 of left part is provided with the sidepiece waste rock board 13 being connected with back timber and the fixing waste rock board 13-1 being connected with base 6 by goaf side, the narrow body support frame 2 of right part is provided with 10 spaced apart U-shaped hooks 21 by gob side entry retaining 16 1 side back timbers, two row narrow body support frame base 6 between by bottom transverse push-and-pull jack 5 connect and back timber 8 between by top cross push-and-pull jack 5-1 connect.
In coal-face 14 and crossheading 18, many hydraulic supports are installed, end hydraulic support 15 rears are provided with two groups of narrow body support frames 1 of identical left part and the narrow body support frame 2 of right part, be that the narrow body support frame 1 of left part is first row, the narrow body support frame of right part is second row, the narrow body support frame 3 of the 3rd row, the narrow body support frame 4 of the 4th row, after coal cutting one cutter, end hydraulic support 15 step pitch that moves forward, the narrow body support frame 1 of left part and alternately 4-20 step pitch of the reach of push-and-pull each other of the narrow body support frame 2 of right part, set individual prop 17 at face end support rear simultaneously, the 4th row narrow body support frame 4 Flexible formwork assembly concrete wall 19 not solidificating period do not move, building after 8 hours until Flexible formwork assembly concrete wall 19, first by the horizontal jack 5 being connected with the narrow body support frame 3 of the 3rd row, 5-1 laterally draws narrow movement body support frame 4 and moves 200-300mm to goaf side, then the 3rd narrow body support frame 3 of row and the 4th narrow body support frame 4 of row push-and-pull each other reach, narrow body support frame 3 alternately repeatedly moves forward and aligns with the narrow body support frame 1 of left part and the narrow body support frame 2 of right part with narrow body support frame 4, after alignment, hang Flexible formwork assembly by U-shaped hook 21 with monomer 17, then complete body of wall and build to injecting concrete in Flexible formwork assembly by concrete pump.After having built or during building, work plane 14 continues coal cutting, narrow body support frame 1, narrow body support frame 2 continue mobile, having built at Flexible formwork assembly concrete wall 19 8 hours is that after body of wall solidifies, narrow body support frame 4 starts mobile, successively circulation, complete whole narrow body hydraulic support supporting, move forward and the operation that hangs Flexible formwork assembly.
Claims (1)
1. a Flexible formwork assembly gob side entry retaining hydraulic support, comprise base (6), be located at the hydraulic prop (7) on base (6), the back timber (8) being connected with hydraulic prop (7), it is characterized in that Flexible formwork assembly gob side entry retaining hydraulic support adds up to four narrow body hydraulic supports to arrange to connect by two rows and combines, the narrow body support frame of every row comprises the narrow body support frame in two of front and back connecting by front and back push-and-pull jack (20), the narrow body hydraulic support of every row is provided with the front side guard board (9) and the afterbody waste rock board (10) that are connected with back timber (8), between the back timber (8) of every narrow body support frame and base (6), front portion is connected with a monotroded bar (12), middle part is connected with the single hydraulic prop of 3-4 root (7), rear portion is connected with four connecting rods (11), the narrow body support frame of left part (1) is provided with the sidepiece waste rock board (13) being connected with back timber and the fixing waste rock board (13-1) being connected with base (6) by goaf side, the narrow body support frame of right part (2) is provided with 5-20 spaced apart U-shaped hook (21) by gob side entry retaining (16) one side back timbers, between the base (6) of the narrow body support frame of two rows, connect by passing through top cross push-and-pull jack (5-1) between bottom transverse push-and-pull jack (5) connection and back timber (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072675.2U CN203685245U (en) | 2014-02-20 | 2014-02-20 | Flexible formwork gob-side entry retaining hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072675.2U CN203685245U (en) | 2014-02-20 | 2014-02-20 | Flexible formwork gob-side entry retaining hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685245U true CN203685245U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420072675.2U Expired - Lifetime CN203685245U (en) | 2014-02-20 | 2014-02-20 | Flexible formwork gob-side entry retaining hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685245U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952488A (en) * | 2016-04-15 | 2016-09-21 | 陕西开拓建筑科技有限公司 | Self-moving temporary support device beside gob-side entry retaining |
| CN113294154A (en) * | 2021-04-13 | 2021-08-24 | 昆明理工大学 | Method for reserving tunnel in mined-out bottom dead zone |
-
2014
- 2014-02-20 CN CN201420072675.2U patent/CN203685245U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952488A (en) * | 2016-04-15 | 2016-09-21 | 陕西开拓建筑科技有限公司 | Self-moving temporary support device beside gob-side entry retaining |
| CN105952488B (en) * | 2016-04-15 | 2018-07-03 | 陕西开拓建筑科技有限公司 | Automatic moving type temporary support device by gob side entry retaining lane |
| CN113294154A (en) * | 2021-04-13 | 2021-08-24 | 昆明理工大学 | Method for reserving tunnel in mined-out bottom dead zone |
| CN113294154B (en) * | 2021-04-13 | 2023-10-03 | 昆明理工大学 | Method for reserving roadway in dead zone at bottom of ore drawing |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |