CN111980747B - Gob-side entry retaining roadside filling support method - Google Patents

Gob-side entry retaining roadside filling support method Download PDF

Info

Publication number
CN111980747B
CN111980747B CN202010921863.8A CN202010921863A CN111980747B CN 111980747 B CN111980747 B CN 111980747B CN 202010921863 A CN202010921863 A CN 202010921863A CN 111980747 B CN111980747 B CN 111980747B
Authority
CN
China
Prior art keywords
support
template
filling
bracket
cantilever beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010921863.8A
Other languages
Chinese (zh)
Other versions
CN111980747A (en
Inventor
陈明程
潘韵恬
温志强
桑朋德
高瑞文
杜涛
李晓东
薛亚峰
吴睿
刘立明
潘昱州
刘玉荣
王建斌
郝万东
张王磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
Original Assignee
Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiyuan Institute of China Coal Technology and Engineering Group, Shanxi Tiandi Coal Mining Machinery Co Ltd filed Critical Taiyuan Institute of China Coal Technology and Engineering Group
Priority to CN202010921863.8A priority Critical patent/CN111980747B/en
Publication of CN111980747A publication Critical patent/CN111980747A/en
Application granted granted Critical
Publication of CN111980747B publication Critical patent/CN111980747B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/18Methods of underground mining; Layouts therefor for brown or hard coal
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/02Supporting means, e.g. shuttering, for filling-up materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Remote Sensing (AREA)
  • Road Paving Structures (AREA)

Abstract

The invention belongs to the technical field of application of mining equipment and mining methods, and particularly relates to a gob-side entry retaining roadside filling support method. The gob-side entry retaining support process is divided into an in-lane support and a roadside support, and the roadside support is a key link for determining the success or failure of gob-side entry retaining and the production efficiency. The invention relates to a complete set of 7-frame and 1-group filling hydraulic support. The problems that the traditional gob-side entry retaining roadside filling process is complicated in process, high in labor intensity of workers, high in log consumption, low in filling body compactness and compression amount, insufficient in horizontal thrust resistance of a single-frame roadside filling template support, and insufficient in roof cutting force, so that the secondary rotation sinking of a top plate aggravates roadway deformation are solved, the effective protection time of the filling body is greatly prolonged, and the increase of the filling body strength and the bulging deformation of the filling body during initial setting are facilitated.

Description

Gob-side entry retaining roadside filling support method
Technical Field
The invention belongs to the technical field of application of mining equipment and mining methods, and particularly relates to a gob-side entry retaining roadside filling support method.
Background
And the method for retaining the roadway is to retain the roadway at the original roadway position along the edge of the gob, namely gob-side roadway retaining. The gob-side entry retaining can reduce the amount of tunnel excavation work, recover resources to the maximum extent, alleviate the excavation relation and prolong the service life of a mine. The in-tunnel supporting mode usually adopts anchor net cable supporting, advance supporting bracket or single hydraulic prop reinforced supporting process, and is simple, mature and efficient. The roadside support is close to the gob, so that the construction difficulty is high and the effect is general. The traditional support mode mainly has 3:
(1) stacking the gangue bags: the degree of mechanization is low, the labor intensity of workers is high, the compactness of the piled wall is low, the strength is insufficient, the compression amount is large, the piled wall cannot effectively support the top plate in time, and the roadway cannot completely meet the requirement of secondary use due to excessive sinking of the top plate;
(2) and (3) filling the wall body by matching the round wood and the single hydraulic prop: the consumption of the logs is high, the protection of the ecological environment is not facilitated, the supporting process is complicated, and the labor intensity of workers is high and certain potential safety hazards exist because the workers need to erect single pillars and log supports next to the goaf;
(3) the horizontal stability of the single-frame supports is poor, the roof cutting force is insufficient, so that the secondary rotation sinking of a roof is seriously aggravated to the roadway deformation, the filling and mining relations are not coordinated and matched, and the normal production of a mine is seriously influenced.
Therefore, how to safely, efficiently, quickly and mechanically realize the filling operation of the gob-side entry retaining roadside wall body, realize that the stoping and the filling are synchronous in time, are independent in space, do not influence each other, and are parallel operation, which is a problem to be solved urgently.
Disclosure of Invention
The invention provides a gob-side entry retaining roadside filling and supporting method, which aims to overcome the defects of the traditional gob-side entry retaining roadside supporting process, realize the synchronization of mining and filling in time, realize the independence in space and no mutual influence, safely, efficiently, quickly and mechanically finish the filling operation of a gob-side entry retaining roadside wall body, and improve the production efficiency of a gob-side entry retaining working face.
The invention adopts the following technical scheme: a gob-side entry retaining roadside filling support method comprises the following steps.
S100, arranging a guide support along with normal propulsion and stoping of the fully mechanized mining face, sequentially opening a first-stage cantilever beam and a second-stage cantilever beam at the front end of the guide support to support a rear top plate of a hydraulic support frame of the fully mechanized mining face, and arranging a template support B1, a template support B2 and a template support B3 behind the guide support; a template bracket C1, a template bracket C2, and a template bracket C3 are disposed behind the template bracket B1, the template bracket B2, and the template bracket B3, respectively.
S200, when the working surface is pushed to L/2m, retracting the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support, reducing the height of the guide support, moving the guide support forwards for L/2m at one time, and opening the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support.
S300, continuously propelling the fully mechanized coal mining face, sequentially opening the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support again, and supporting a newly exposed top plate space; and after the working surface is pushed by L/2m again, the guide support reaches the maximum jacking distance control state.
S400, advancing the guide bracket by L/2m again, wherein the guide bracket is integrally advanced by Lm.
S500, sequentially advancing a template bracket B1, a template bracket C1, a template bracket B2, a template bracket C2, a template bracket B3 and a template bracket C3 by an advancing step distance Lm.
S600 at a template support B2And a formwork support B3And a formwork support C2And a formwork support C3A flexible mould or canvas is hung between the two parts to form a filling space.
S700-start the filling system to finish B2And B3And the filling operation of the roadside concrete wall between the roadways completes a complete cycle of mining and filling.
And S800, repeating the above circulation until the roadway retaining support operation of the whole roadway is completed.
The guide support is formed by increasing the width of a support top beam and the length of a front cantilever beam and a rear cantilever beam on the basis of an integral advance support.
Formwork support B2Template support B3And a formwork support C2、And a formwork support C3One side is provided with an iron chain net and a template bracket B1And a formwork support B2And a formwork support C1And a formwork support C2Pulley mechanisms are respectively arranged between the top beams and between the bases.
Compared with the prior art, the method avoids the problems of complex working procedures, high labor intensity of workers, high consumption of round timbers, low compactness and high compression of the filling body, poor horizontal stability of a single-frame roadside filling template support, aggravated tunnel deformation caused by secondary rotation and sinking of a top plate due to insufficient roof cutting force and the like of the traditional gob-side entry retaining roadway filling process, provides effective lateral protective constraint of the filling concrete wall body in the 1-day age on the basis of not influencing normal pushing and recovery of a working face, is favorable for increasing the strength of the filling body and controlling bulging deformation of the filling body in the initial setting period, and realizes synchronization of the recovery and entry retaining operations in time, independence in space and no mutual influence.
The gob-side entry retaining filling process is advanced, and the production and filling are synchronously operated in parallel, so that the gob-side entry retaining paste filling method is an ideal gob-side entry retaining paste filling method for medium-thickness coal seams.
Drawings
FIG. 1 is a floor plan of the present invention;
FIG. 2 is a schematic view of the supporting process of the present invention;
FIG. 3 is a schematic view of the supporting process of the present invention II;
FIG. 4 is a schematic diagram of the split type bracket inner side iron curtain sub-net suspension;
in the figure, 1-hydraulic prop, 2-iron chain subnet, 3-four-bar linkage mechanism, 4-fully mechanized mining working face, 5-return air gateway, 6-transportation gateway, 7-gob-side entry retaining, 8-guide bracket, 9-template bracket B1, 10-template bracket B2, 11-template bracket B3, 12-template bracket C1, 13-template bracket C2 and 14-template bracket C3.
Detailed Description
The filling process equipment comprises: the blender, the pumping system, the 7-frame 1-group complete set filling hydraulic support, the flexible mold or the canvas.
(1) Arranging, installing and filling equipment
And a stirring station is arranged within the range of 50-100 m away from the working surface and is connected with a pumping system.
7 complete filling hydraulic supports of 1 group and 1 complete filling hydraulic support are sequentially arranged behind the fully mechanized mining face support, and a template support B2And a formwork support B3Middle and template support C2And a formwork support C3The width between the two cantilever beams is adjusted according to the width of the filling wall body, and all the cantilever beams of the guide support A are in a closed state, namely the set of hydraulic support is in a minimum jacking distance control state (as shown in figure 3).
Finally, the flexible mould or the canvas is hung on the template bracket B2And a formwork support B3Middle and template support C2And a formwork support C3And a relatively closed filling space is constructed to prepare for filling the paste filling body in the next step.
A gob-side entry retaining roadside filling support method comprises the following steps.
S100, arranging a guide support along with normal propulsion and stoping of the fully mechanized mining face, sequentially opening a first-stage cantilever beam and a second-stage cantilever beam at the front end of the guide support to support a rear top plate of a hydraulic support frame of the fully mechanized mining face, and arranging a template support B1, a template support B2 and a template support B3 behind the guide support; a template bracket C1, a template bracket C2, and a template bracket C3 are disposed behind the template bracket B1, the template bracket B2, and the template bracket B3, respectively.
S200, when the working surface is pushed to L/2m, retracting the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support, reducing the height of the guide support, moving the guide support forwards for L/2m at one time, and opening the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support.
S300, continuously propelling the fully mechanized coal mining face, sequentially opening the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support again, and supporting a newly exposed top plate space; and after the working surface is pushed by L/2m again, the guide support reaches the maximum jacking distance control state.
S400, advancing the guide bracket by L/2m again, wherein the guide bracket is integrally advanced by Lm.
S500, sequentially advancing a template bracket B1, a template bracket C1, a template bracket B2, a template bracket C2, a template bracket B3 and a template bracket C3 by an advancing step distance Lm.
S600 at a template support B2And a formwork support B3And a formwork support C2And a formwork support C3A flexible mould or canvas is hung between the two parts to form a filling space.
S700-start the filling system to finish B2And B3And the filling operation of the roadside concrete wall between the roadways completes a complete cycle of mining and filling.
And S800, repeating the above circulation until the roadway retaining support operation of the whole roadway is completed.
The guide support is formed by increasing the width of a support top beam and the length of a front cantilever beam and a rear cantilever beam on the basis of an integral advance support.
Formwork support B2Template support B3And a formwork support C2、And a template supportShelf C3One side is provided with an iron chain net and a template bracket B1And a formwork support B2And a formwork support C1And a formwork support C2Pulley mechanisms are respectively arranged between the top beams and between the bases.

Claims (3)

1. A gob-side entry retaining roadside filling support method is characterized in that: comprises the following steps of (a) carrying out,
s100, arranging a guide support along with normal propulsion and stoping of the fully mechanized mining face, sequentially opening a first-stage cantilever beam and a second-stage cantilever beam at the front end of the guide support to support a rear top plate of a hydraulic support frame of the fully mechanized mining face, and arranging a template support B1, a template support B2 and a template support B3 behind the guide support; a template bracket C1, a template bracket C2, and a template bracket C3 are disposed behind the template bracket B1, the template bracket B2, and the template bracket B3, respectively;
s200, when a working surface is pushed to L/2, the unit of L is meter, a first-stage cantilever beam and a second-stage cantilever beam at the front end of a guide support are retracted, the height of the guide support is reduced, the guide support is moved forwards for a distance of L/2 in one step, and the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support are opened at the same time;
s300, continuously propelling the fully mechanized coal mining face, sequentially opening the first-stage cantilever beam and the second-stage cantilever beam at the front end of the guide support again, and supporting a newly exposed top plate space; after the working surface is pushed by L/2 again, the guide bracket reaches the maximum jacking distance control state;
s400, advancing the guide support L/2 again, wherein the guide support is integrally advanced by L;
s500, sequentially advancing a template bracket B1, a template bracket C1, a template bracket B2, a template bracket C2, a template bracket B3 and a template bracket C3 by an advancing step distance L;
s600 at a template support B2And a formwork support B3And a formwork support C2And a formwork support C3A flexible mould or canvas is hung between the two to construct a filling space;
s700-start the filling system to finish B2And B3Filling operation of the roadside concrete wall between the roadways is completed, and a complete cycle of mining and filling is completed;
and S800, repeating the above circulation until the roadway retaining support operation of the whole roadway is completed.
2. The gob-side entry retaining roadside packing support method according to claim 1, characterized by: the guide support is formed by increasing the width of a support top beam and the length of a front cantilever beam and a rear cantilever beam on the basis of an integral advance support.
3. The gob-side entry retaining roadside packing support method according to claim 2, characterized by: the template bracket B2Template support B3And a formwork support C2、And a formwork support C3One side is provided with an iron chain net and a template bracket B1And a formwork support B2And a formwork support C1And a formwork support C2Pulley mechanisms are respectively arranged between the top beams and between the bases.
CN202010921863.8A 2020-09-04 2020-09-04 Gob-side entry retaining roadside filling support method Active CN111980747B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010921863.8A CN111980747B (en) 2020-09-04 2020-09-04 Gob-side entry retaining roadside filling support method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010921863.8A CN111980747B (en) 2020-09-04 2020-09-04 Gob-side entry retaining roadside filling support method

Publications (2)

Publication Number Publication Date
CN111980747A CN111980747A (en) 2020-11-24
CN111980747B true CN111980747B (en) 2022-04-12

Family

ID=73447557

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010921863.8A Active CN111980747B (en) 2020-09-04 2020-09-04 Gob-side entry retaining roadside filling support method

Country Status (1)

Country Link
CN (1) CN111980747B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101289939A (en) * 2008-06-10 2008-10-22 沈阳天安矿山机械科技有限公司 Comprehensive support device for gob-side entry retaining
CN101560883A (en) * 2009-05-27 2009-10-21 沈阳市华祥矿山机械厂 Gob-side entry retaining operation die carrier
CN102587933A (en) * 2012-03-26 2012-07-18 兖州煤业股份有限公司 Gob-side entry retaining method using prefabricated walls
CN102705002A (en) * 2012-05-12 2012-10-03 山东科技大学 Roadside proper yielding unequal combined filling structure of gob-side entry retaining and construction method
CN104018837A (en) * 2014-06-20 2014-09-03 中国矿业大学 Spacing-filling gob-side entry retaining method for treating dinting gangue
CN104712360A (en) * 2015-01-14 2015-06-17 中国矿业大学 Adjustable high-adaptability formwork support for large mining height fully-mechanized face and gob-side entry retaining method
CN104895604A (en) * 2015-05-27 2015-09-09 四川川煤华荣能源股份有限公司小宝鼎煤矿 Construction method of lane filling retained roadway
CN107013229A (en) * 2017-05-26 2017-08-04 新疆大学 Folding telescopic gob side entry retaining roadside packing Flexible formwork assembly and its construction method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101289939A (en) * 2008-06-10 2008-10-22 沈阳天安矿山机械科技有限公司 Comprehensive support device for gob-side entry retaining
CN101560883A (en) * 2009-05-27 2009-10-21 沈阳市华祥矿山机械厂 Gob-side entry retaining operation die carrier
CN102587933A (en) * 2012-03-26 2012-07-18 兖州煤业股份有限公司 Gob-side entry retaining method using prefabricated walls
CN102705002A (en) * 2012-05-12 2012-10-03 山东科技大学 Roadside proper yielding unequal combined filling structure of gob-side entry retaining and construction method
CN104018837A (en) * 2014-06-20 2014-09-03 中国矿业大学 Spacing-filling gob-side entry retaining method for treating dinting gangue
CN104712360A (en) * 2015-01-14 2015-06-17 中国矿业大学 Adjustable high-adaptability formwork support for large mining height fully-mechanized face and gob-side entry retaining method
CN104895604A (en) * 2015-05-27 2015-09-09 四川川煤华荣能源股份有限公司小宝鼎煤矿 Construction method of lane filling retained roadway
CN107013229A (en) * 2017-05-26 2017-08-04 新疆大学 Folding telescopic gob side entry retaining roadside packing Flexible formwork assembly and its construction method

Also Published As

Publication number Publication date
CN111980747A (en) 2020-11-24

Similar Documents

Publication Publication Date Title
CN104405437B (en) A kind of solid filling with combine the hybrid working face mining method of adopting
CN100487224C (en) Rapid-construction method for rapid change of small-section into large-section tunnel
CN112096405B (en) Tunneling and anchoring integrated machine and advanced drilling method
CN105952453B (en) Longwell protrusive working face of coal seam mechanization exploits complete set of equipments without lane
CN110410118B (en) Novel tunneling process
CN101824986B (en) Coal mining process of drilling, loading, conveying and anchoring integral machine
CN101560883A (en) Gob-side entry retaining operation die carrier
CN110566205B (en) Mining method for steep coal seam
CN111980747B (en) Gob-side entry retaining roadside filling support method
CN104863599B (en) Fully-mechanized mining working synchronously expands side installation method and support system
CN201433777Y (en) Gob-side entry retaining operation die carrier
CN111828073A (en) Novel roadway support device
CN211648172U (en) Ten-arm tunneling and tracing machine
CN202578740U (en) Drivage staggered type support device
CN209115129U (en) A kind of small pilot tunnel leading support equipment
CN211975008U (en) Quick isolating device for paste filling hydraulic support
CN115711126A (en) Quick tunneling system suitable for coal roadway or half-coal rock roadway
CN101936163A (en) Method for recovering large mining height fully-mechanized face end part ground coal
CN211549698U (en) Jacking working pit
CN114233334A (en) Roadway lapping auxiliary device
CN211598712U (en) Track self-moving type advance support
CN107227970A (en) Electro-hydraulic control termination lapping hydraulic bracket
CN218716883U (en) Temporary support equipment suitable for soft soil stratum small pilot tunnel
CN217841688U (en) Be used for colliery tunnel supporting construction
CN111255496A (en) Coal pillar auxiliary type mining advanced temporary support device and using method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant