CN110985084B - Coal roadway full-section self-moving advanced temporary support device and support method - Google Patents
Coal roadway full-section self-moving advanced temporary support device and support method Download PDFInfo
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- CN110985084B CN110985084B CN201911103718.2A CN201911103718A CN110985084B CN 110985084 B CN110985084 B CN 110985084B CN 201911103718 A CN201911103718 A CN 201911103718A CN 110985084 B CN110985084 B CN 110985084B
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- supporting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
- E21D23/0095—Temporary supports at the driving front
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
Abstract
The invention belongs to the technical field of coal roadway advance support, and particularly relates to a coal roadway full-section self-moving advance temporary support device and a support method. The support device comprises bases symmetrically arranged on two sides, stand columns are mounted on the bases, the tops of the stand columns are connected with a supporting beam through jacking jacks, sleeves communicated from left to right are mounted on the stand columns, push-pull rods are arranged in the sleeves, the outer side ends of the push-pull rods are connected with supporting side bodies, and the inner side ends of the push-pull rods are connected with bidirectional telescopic jacks; the supporting device comprises bases symmetrically arranged on two sides, a stand column is installed on each base, the top of each stand column is connected with a supporting beam through a jacking jack, a telescopic beam jack is installed in each supporting beam and drives each telescopic beam to extend forwards, a sleeve communicated with the left and the right is installed on each stand column, a push-pull rod is arranged in each sleeve, the outer side end of each push-pull rod is connected with a supporting wall body, and the inner side end of each push-pull rod is connected with a bidirectional telescopic jack.
Description
Technical Field
The invention belongs to the technical field of coal roadway advance support, and particularly relates to a coal roadway full-section self-moving advance temporary support device and a support method.
Background
Under the combined action of mining disturbance in the mining process of a working face, supporting pressure in front of the working face, residual supporting pressure of a tunnel and the like, mine pressure of the mining tunnel appears particularly violently, the tunnel is seriously deformed and damaged, and a support frame or a support drilling bottom is easy to appear on supporting equipment close to the working face tunnel, so that potential safety hazards are brought to normal and safe production of the working face. At present, most underground coal mines adopt single pillars to match beams for auxiliary supporting, supporting effect is obvious, but the single pillars and the beams need to be disassembled and assembled manually in time in the working face advancing process, the single pillars and the beams are carried to the foremost ends of the single pillars for supporting the next section of roadway, manual frame moving efficiency is low, labor intensity of constructors is high, manual installation difficulty is high, stability is poor, safety is low, moving deflection or support inclination is easy to cause in the frame moving process, and adaptability to geological conditions is not strong; the problems of frame pressing or bottom drilling of a base and the like are easily caused under the condition of poor tunnel top plate conditions, the difficulty is brought to manual frame moving of the single prop, and meanwhile, the tunnel top plate is subjected to frequent pressure relief and pressurization in advance of the hydraulic prop in the frame moving process, so that surrounding rocks of the top plate are broken, and potential safety hazards are brought to constructors; the coal mine is also provided with some frame moving equipment, but a series of problems of complex structure, large operation difficulty, large volume, large occupied space and the like exist, so that the ventilation, transportation and pedestrians of the stoping roadway are influenced due to the fact that the stoping roadway is not smooth.
Disclosure of Invention
The invention provides a coal roadway full-section self-moving advance temporary support device and a support method, aiming at solving the problem that the advance temporary support can only support the top.
The invention adopts the following technical scheme: a coal roadway full-section self-moving advanced temporary supporting device comprises a supporting device I and a supporting device II, wherein a pushing jack is arranged between the supporting device I and the supporting device II, the supporting device I comprises bases I symmetrically arranged on two sides, a stand column I is installed on each base I, the top of each stand column I is connected with a supporting beam I through the corresponding jacking jack I, a sleeve I communicated with the left and the right is installed on each stand column I, a push-pull rod I is arranged in each sleeve I, the outer side end of each push-pull rod I is connected with a supporting body I, and the inner side end of each push-pull rod I is connected with a bidirectional telescopic jack I; support arrangement II set up the base II in both sides including the symmetry, install stand II on the base II, stand II top is passed through jacking jack II and is connected with propping roof beam II, prop and install flexible beam jack in the roof beam II, flexible beam jack drive flexible beam stretches out forward, the sleeve II of intercommunication about installing on the stand II, be provided with push-and-pull rod II in the sleeve II, push-and-pull rod II outside end connection props group body II, push-and-pull rod II's medial extremity and two-way flexible jack II are connected.
Further, stand I and the inboard erection joint seat of stand II connect the connecting rod between the connecting seat of both sides.
A supporting method of a coal roadway full-section self-moving advanced temporary supporting device comprises the following steps,
s100, after the coal roadway full-section self-moving advanced temporary supporting device moves to a roadway section needing to be supported, the bidirectional telescopic jack I and the bidirectional telescopic jack II work to respectively push the supporting side body I and the supporting side body II to extend out of the roadway on two sides of the supporting side, and the jacking jack I and the jacking jack II work to respectively push the supporting beam I and the supporting beam II to extend out of the roadway on the top of the supporting side.
S200, when the supporting work is finished and the front section needs to be advanced, the bidirectional telescopic jack I drives the supporting side bodies I on the two sides to retract inwards, the jacking jack I drives the supporting beam I to retract downwards, then the jacking jack is pushed to extend out, and the supporting device I is pushed to move forwards.
S300, after the supporting device I moves in place, the telescopic beam is driven by the telescopic beam jack to extend forwards, and the telescopic beam is used as a temporary support in the moving process to support the top of the roadway.
S400, driving the supporting side bodies I on the two sides to extend outwards to support the roadways on the two sides by a bidirectional telescopic jack I, and driving the supporting top beams I to extend upwards to support the top of the roadway by the jacking jack I; meanwhile, the two-way telescopic jack II drives the supporting wall bodies II on the two sides to retract towards the inner side, and the jacking jack II drives the supporting beam II to retract downwards.
S500, withdrawing the pushing jack and the beam retracting jack simultaneously, moving the supporting device II forwards under the pulling of the pushing jack, driving the supporting side bodies II on two sides to extend outwards to support roadways on two sides by the aid of the two-way telescopic jack II after the supporting device II is moved in place, driving the supporting beam I to extend upwards to support the top of the roadway by the aid of the jacking jack II, and completing walking and supporting.
S600, completing the next cycle according to the steps S200-S500.
Compared with the prior art, the invention has the beneficial effects that: in the technical aspect, the invention can realize full-section protection of the roadway under the condition of poor integrity of the roadway top plate, and the front and rear supporting devices are mutually pushed to realize self-moving of the device; the left supporting device and the right supporting device are connected through the double telescopic jacks and the connecting rods, the left space and the right space can be adjusted, the space of pedestrians is guaranteed, the stability in the moving process of the support is enhanced, and the support is prevented from inclining in the moving process, inclining to the support and the like. The roadway roof support is always in a constant-pressure state in the whole support moving process, repeated disassembly and carrying are not needed, the labor intensity is low, the roof surrounding rock is prevented from being broken due to frequent pressure relief and pressurization of the support, and the safety of the support is improved; on the aspect of use operation, can realize moving frame, crane automatically under the constant voltage condition in the tunnel, adapt to various tunnel geological conditions, avoid support slope, press the frame, bore the end scheduling problem, convenient operation, move a efficient, stability is strong, the security is high, occupation space is little, the material resources of using manpower sparingly. The supporting procedure can be simplified, and the potential safety hazard of operation personnel operating under the empty roof can be avoided. The mechanical supporting operation degree of the coal mine is improved, the excavating speed and the working efficiency are greatly improved, the excavating cost and the labor intensity of operating personnel are reduced, and the safety of the personnel is ensured.
Drawings
FIG. 1 is a side view of a coal roadway full-section self-moving advanced temporary support device;
FIG. 2 is a top view of a coal roadway full-section self-moving advanced temporary support device;
FIG. 3 is a front view of the support device I;
FIG. 4 is a side view of the support device I;
FIG. 5 is a front view of the support device II;
FIG. 6 is a side view of the support device II;
FIG. 7 is a top view of the support device II;
in the figure, 1-supporting device I, 2-supporting device II, 3-pushing jack, 4.1-supporting beam I, 4.2-supporting beam II, 5.1-bidirectional telescopic jack I, 5.2-bidirectional telescopic jack II, 6.1-push-pull rod I, 6.2-push-pull rod II, 7.1-push-pull rod I, 7.2-push-pull rod II, 8.1-column I, 8.2-column II, 9.1-base I, 9.2-base II, 10.1-jacking jack I, 10.2-jacking jack II, 11.1-sleeve I, 11.2-sleeve II, 12-connecting rod, 13-connecting seat, 14-telescopic beam jack, 15-telescopic beam.
Detailed Description
As shown in figures 1 and 2, the coal roadway full-section self-moving advanced temporary support device comprises a support device I1 and a support device II 2, and a pushing jack 3 is arranged between the support device I1 and the support device II 2.
As shown in fig. 3 and 4, the supporting device I1 includes bases I9.1 symmetrically disposed on both sides, a column I8.1 is mounted on the base I9.1, the top of the column I8.1 is connected with a supporting beam I4.1 through a jacking jack I10.1, a sleeve I11.1 communicated from left to right is mounted on the column I8.1, a push-pull rod I7.1 is disposed in the sleeve I11.1, the outer side end of the push-pull rod I7.1 is connected with a supporting body I6.1, and the inner side end of the push-pull rod I7.1 is connected with a bidirectional telescopic jack I5.1.
As shown in fig. 5, 6 and 7, the supporting device II 2 includes a base II9.2 symmetrically disposed on both sides, a column II8.2 is mounted on the base II9.2, the top of the column II8.2 is connected with a supporting beam II4.2 through a jacking jack II10.2, a telescopic beam jack 14 is mounted in the supporting beam II4.2, the telescopic beam jack 14 drives a telescopic beam 15 to extend and retract, a sleeve II9.2 communicating left and right is mounted on the column II8.2, a push-pull rod II7.2 is disposed in the sleeve II9.2, the outer end of the push-pull rod II7.2 is connected with the supporting body II6.2, and the inner end of the push-pull rod II6.2 is connected with a bidirectional telescopic jack II 5.2.
Connecting seats 13 are arranged on the inner sides of the upright posts I8.1 and the upright posts II8.2, and connecting rods 12 are connected between the connecting seats 13 on the two sides.
Strutting arrangement I1 and strutting arrangement II 2 all are bilateral symmetry's structure, connect into whole through connecting seat 13 and connecting rod 12 between the bilateral symmetry's structure. When supporting the tunnel, the tunnel leads to strutting arrangement I1 and strutting arrangement II 2 to the both sides split easily to propping a roof beam I4.1 and propping a roof beam II4.2 decurrent pressure, and the pressurized becomes splayed structure, has an inboard tightening force to the both sides stand through connecting seat 13 and connecting rod 12, can protect strutting arrangement I1 and strutting arrangement II 2 can not become by the pressure deformation.
A supporting method of a coal roadway full-section self-moving advanced temporary supporting device comprises the following steps.
S100, after the coal roadway full-section self-moving advanced temporary supporting device moves to a roadway section needing to be supported, the bidirectional telescopic jack I5.1 and the bidirectional telescopic jack II5.2 work to respectively push the supporting wall body I6.1 and the supporting wall body II6.2 to extend out of the roadway on two sides to support the roadway on two sides, and the jacking jack I10.1 and the jacking jack II10.2 work to respectively push the supporting beam I4.1 and the supporting beam II4.2 to extend out of the roadway on the top of the support.
S200, when the supporting work is finished and the front section needs to be advanced, the bidirectional telescopic jack I5.1 drives the supporting side bodies I6.1 on the two sides to retract inwards, the jacking jack I10.1 drives the supporting beam I4.1 to retract downwards, and then the jacking jack 3 is pushed to extend out to push the supporting device I1 to move forwards.
S300, after the supporting device I1 is moved in place, the telescopic beam jack 14 drives the telescopic beam 15 to extend forwards, and the telescopic beam 15 is used as a temporary support in the moving process to support the top of the roadway.
S400, driving supporting side bodies I6.1 on two sides to extend outwards to support roadways on two sides by a bidirectional telescopic jack I5.1, and driving supporting top beams I4.1 to extend upwards to support the top of the roadway by a jacking jack I10.1; meanwhile, the two-way telescopic jack II5.2 drives the supporting wall bodies II6.2 on the two sides to retract inwards, and the jacking jack II10.2 drives the supporting beam II4.2 to retract downwards.
S500, the pushing jack 3 and the beam retracting jack 14 are retracted simultaneously, the supporting device II 2 moves forward under the pulling of the pushing jack 3, after the supporting device II 2 moves in place, the bidirectional telescopic jack II5.2 drives the supporting side bodies II6.2 on two sides to extend outwards to support the roadways on two sides, and the jacking jack II10.2 drives the supporting beam II4.2 to extend upwards to support the top of the roadway to finish walking and supporting.
S600, completing the next cycle according to the steps S200-S500.
Claims (3)
1. The utility model provides a coal road full section is from leading temporary support device that moves which characterized in that: the device comprises a supporting device I (1) and a supporting device II (2), a push jack (3) is arranged between the supporting device I (1) and the supporting device II (2), the supporting device I (1) comprises bases I (9.1) symmetrically arranged on two sides, an upright post I (8.1) is installed on the base I (9.1), the top of the upright post I (8.1) is connected with a supporting beam I (4.1) through a jacking jack I (10.1), a sleeve I (11.1) communicated with the left and the right is installed on the upright post I (8.1), a push-pull rod I (7.1) is arranged in the sleeve I (11.1), the outer side end of the push-pull rod I (7.1) is connected with a supporting body I (6.1), and the inner side end of the push-pull rod I (7.1) is connected with a bidirectional telescopic jack I (5.1); the supporting device II (2) comprises bases II (9.2) symmetrically arranged on two sides, stand columns II (8.2) are arranged on the bases II (9.2), the tops of the stand columns II (8.2) are connected with supporting beams II (4.2) through jacking jacks II (10.2), telescopic beam jacks (14) are arranged in the supporting beams II (4.2), the telescopic beams (15) are driven by the telescopic beam jacks (14) to stretch out and retract, sleeves II (9.2) communicated left and right are arranged on the stand columns II (8.2), push-pull rods II (7.2) are arranged in the sleeves II (9.2), the outer side ends of the push-pull rods II (7.2) are connected with the supporting beams II (6.2), and the inner side ends of the push-pull rods II (7.2) are connected with the bidirectional telescopic jacks II (5.2).
2. The coal roadway full-section self-moving advanced temporary support device according to claim 1, characterized in that: the inner sides of the upright post I (8.1) and the upright post II (8.2) are provided with connecting seats (13), and connecting rods (12) are connected between the connecting seats (13) at two sides.
3. A supporting method of the coal roadway full-section self-moving advanced temporary supporting device as claimed in claim 2, characterized in that: comprises the following steps of (a) carrying out,
s100, after the coal roadway full-section self-moving advanced temporary supporting device moves to a roadway section needing to be supported, a bidirectional telescopic jack I (5.1) and a bidirectional telescopic jack II (5.2) work to respectively push a supporting wall body I (6.1) and a supporting wall body II (6.2) to extend out of the roadway on two sides of the support, a jacking jack I (10.1) and a jacking jack II (10.2) work to respectively push a supporting top beam I (4.1) and a supporting top beam II (4.2) to extend out of the roadway on the top of the support upwards;
s200, when the supporting work is finished and the front section needs to be advanced, a bidirectional telescopic jack I (5.1) drives supporting side bodies I (6.1) on two sides to retract inwards, a jacking jack I (10.1) drives supporting top beams I (4.1) to retract downwards, then a pushing jack (3) extends out, and the supporting device I (1) is pushed to move forwards;
s300, after the supporting device I (1) moves in place, the telescopic beam jack (14) drives the telescopic beam (15) to extend forwards, and the telescopic beam (15) is used as a temporary support in the moving process to support the top of the roadway;
s400, driving supporting side bodies I (6.1) on two sides to extend outwards to support roadways on two sides by a bidirectional telescopic jack I (5.1), and driving supporting beams I (4.1) to extend upwards to support the top of the roadway by a jacking jack I (10.1); meanwhile, the two-way telescopic jack II (5.2) drives the supporting wall bodies II (6.2) on the two sides to retract inwards, and the jacking jack II (10.2) drives the supporting beam II (4.2) to retract downwards;
s500, withdrawing the pushing jack (3) and the telescopic beam jack (14) simultaneously, moving the supporting device II (2) forwards under the pulling of the pushing jack (3), driving the supporting side bodies II (6.2) on two sides to extend outwards to support roadways on two sides after the supporting device II (2) moves in place, driving the supporting top beams II (4.2) to extend upwards to support the top of the roadways by the jacking jack II (10.2), and completing walking and supporting;
s600, completing the next cycle according to the steps S200-S500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103718.2A CN110985084B (en) | 2019-11-13 | 2019-11-13 | Coal roadway full-section self-moving advanced temporary support device and support method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103718.2A CN110985084B (en) | 2019-11-13 | 2019-11-13 | Coal roadway full-section self-moving advanced temporary support device and support method |
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| Publication Number | Publication Date |
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| CN110985084A CN110985084A (en) | 2020-04-10 |
| CN110985084B true CN110985084B (en) | 2021-12-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111594247B (en) * | 2020-06-09 | 2022-06-10 | 中国煤炭科工集团太原研究院有限公司 | Roadway end supporting equipment and method for non-pillar mining along empty roadway |
| CN112302695B (en) * | 2020-10-22 | 2022-10-14 | 中电建南方建设投资有限公司 | Temporary supporting method for mine excavation |
| CN113738393A (en) * | 2021-09-06 | 2021-12-03 | 中铁开发投资集团有限公司 | Construction device and method for shallow-buried drilling and blasting method of urban rail transit in downtown area |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2010977C1 (en) * | 1991-07-29 | 1994-04-15 | Евгений Александрович Волков | Foundation of mechanized timbering section |
| SU1838621A3 (en) * | 1992-01-09 | 1993-08-30 | Vyacheslav A Potapenko | Drift powered support |
| CN102913268B (en) * | 2012-11-16 | 2015-10-14 | 山东矿机集团股份有限公司 | Tunnelling machine moves support frame |
| CN105697013A (en) * | 2016-03-31 | 2016-06-22 | 中国矿业大学(北京) | Contractible temporary support for tunneling tunnel |
| CN106437806A (en) * | 2016-11-24 | 2017-02-22 | 杨晓斌 | Coal mine underground working face hydraulic support with monitoring system |
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