阅读说明：本技术 一种矿山巷道作业面防坍塌方法 (Mine roadway working face collapse prevention method ) 是由 不公告发明人 于 2019-09-25 设计创作，主要内容包括：本发明属于矿山支护领域,具体的说是一种矿山巷道作业面防坍塌方法；通过气缸提供压力,使得弧形支架向两边展开,在展开过程中,当滑块位置到达极限位置时,弧形支架通过铰接板继续向两边展开,直至顶板被顶起,实现了支撑的效果；由于矿洞内部空气较为湿润,空气中的水分通过橡胶囊上端的通孔进入橡胶囊内部,从而使得吸水树脂吸水膨胀,增大了橡胶囊的体积,即增大了支撑装置的工作面,并且在吸水树脂的膨胀过程中,填补了橡胶囊与矿洞工作面之间的缝隙,实现了支撑装置和矿洞工作面之间从点接触到面接触,增大了支撑装置的平稳性,减小了存在的安全隐患。(The invention belongs to the field of mine support, in particular to a collapse prevention method for a mine roadway working surface; the pressure is provided by the air cylinder, so that the arc-shaped support is unfolded towards two sides, and in the unfolding process, when the position of the sliding block reaches the limit position, the arc-shaped support is continuously unfolded towards two sides through the hinged plate until the top plate is jacked up, so that the supporting effect is realized; because the inside air of mine hole is comparatively moist, moisture in the air passes through inside the through-hole entering rubber bag of rubber bag upper end to make water-absorbent resin absorb water and expand, increased the volume of rubber bag, strutting arrangement's working face has been increased promptly, and in water-absorbent resin's inflation process, filled the gap between rubber bag and the mine hole working face, realized from the point contact to the surface contact between strutting arrangement and the mine hole working face, strutting arrangement's stationarity has been increased, the potential safety hazard that has reduced the existence.)

1. A mine roadway working surface collapse prevention method is characterized in that: the collapse prevention method comprises the following steps:

s1: arranging a first layer of top beams on the upper part of the mineral layer, excavating a construction space on the lower part of the first layer of top beams, and then piling in the space to prepare a first layer of upright columns, wherein the downward depth of the first layer of upright columns exceeds the depth of a first layer of mine hole to be mined and the first layer of upright columns extends upwards to the first layer of top beams;

s2: mining minerals at the lower part of the first layer of top beams to form a first layer of mine hole; piling downwards at the bottom of the first layer of mine hole close to the bottom of the first layer of upright column to prepare a second layer of upright column, wherein the downward depth of the second layer of upright column exceeds the depth of the mine hole to be mined in the second layer, and then preparing a second layer of top beam; pouring the bottom of the first layer of upright column and the top of the second layer of upright column together by the second layer of top beam, and pouring the first layer of upright column, the second layer of upright column and the second layer of top beam into an integral structure;

s3: mining a second layer of minerals at the lower part of the second layer of top beam to form a second layer of mine hole; piling downwards at the bottom of the second layer of mine hole close to the bottom of the second layer of stand column to prepare a third layer of stand column, wherein the downward depth of the third layer of stand column exceeds the depth of the third layer of mine hole to be mined, then preparing a third layer of top beam, pouring the bottom of the second layer of stand column and the top of the third layer of stand column together by the third layer of top beam, and pouring the three into an integrated structure;

s4: mining a third layer of minerals at the lower part of the third layer of top beams to form a third layer of mine hole; sequentially preparing the supporting devices of the corresponding layers until the minerals of the bottom layer are mined, and completing the mining of the whole mineral layer;

the supporting device of S4 comprises a bottom plate (1), an arc-shaped support (2), a cylinder (3) and a top plate (4), wherein the arc-shaped support (2) is symmetrically hinged on the upper surface of the bottom plate (1); two ends of the cylinder (3) are respectively hinged with the rod parts of the two arc-shaped supports (2); the lower end of the top plate (4) is provided with a sliding groove (41); a sliding block (42) is arranged in the sliding groove (41), and the sliding block (42) is hinged with the end part of the arc-shaped support (2) through a hinged plate (43); the top plate (4) is jacked up through the matching of the arc-shaped support (2), the cylinder (3) and the top plate (4), and a supporting effect is achieved.

2. The mine roadway working face collapse prevention method according to claim 1, characterized in that: a rubber bag (5) is arranged on the top plate (4); the rubber bag (5) is filled with water-absorbing resin, and the upper end of the rubber bag (5) is provided with a through hole (51); after water is absorbed by the water-absorbent resin, the volume of the rubber bag (5) is increased, and the supporting stability is increased.

3. The mine roadway working face collapse prevention method according to claim 2, characterized in that: a thin-wall glass tube (52) is arranged in the rubber bag (5); a curing agent is arranged in the thin-wall glass tube (52); after the water-absorbing resin absorbs water, the volume is enlarged, and the rubber bag (5) is expanded, so that the thin-wall glass tube (52) is crushed, the curing agent flows out, and the water-absorbing resin is cured.

4. The mine roadway working face collapse prevention method according to claim 1, characterized in that: the bottom plate (1) is symmetrically and fixedly connected with supporting columns (6); the support post (6) is in contact with the side wall of the top plate (4), the rod part of the support post (6) is hinged with the rod part of the arc-shaped support (2) through a hinge wheel (61), and a notch (62) is formed in the upper end of one side, in contact with the side wall of the top plate (4), of the support post (6); an L-shaped channel (44) is formed in the top plate (4); two ends of the L-shaped channel (44) are respectively arranged at the upper end of the top plate (4) and the side wall of the top plate (4), and the lower port of the L-shaped channel (44) is connected with the notch (62) on the pillar (6) when the top plate (4) is jacked to the highest position; a clamping block (45) is arranged in the L-shaped channel (44); a hole is formed at the contact position of the rubber bag (5) and the upper end opening of the L-shaped channel (44); after water absorption and expansion of the water-absorbent resin, the clamping block (45) is extruded through the L-shaped channel (44), so that the clamping block (45) clamps the notch (62) on the support column (6).

5. The mine roadway working face collapse prevention method according to claim 4, characterized in that: in the L-shaped channel (44), a Z-shaped clamping rod (46) is fixed between the clamping block (45) and the port at the upper end of the L-shaped channel (44) through a torsion spring; after the water absorption resin absorbs water and expands, the clamping block (45) is extruded, and when the clamping block (45) clamps the notch (62) on the support column (6), the Z-shaped clamping rod (46) falls down to clamp the clamping block (45).

6. The mine roadway working face collapse prevention method according to claim 4, characterized in that: a first air bag (63) is arranged in the notch (62); the first air bag (63) is internally provided with a curing agent; the working end of the fixture block (45) is provided with a firing pin (451), and the tail part of the firing pin (451) of the fixture block (45) is provided with a cavity in which a second air bag (452) is arranged; carbon dioxide is filled in the second air bag (452); the curing agent is filled in the gap between the fixture block (45) and the notch (62) through the actions of the slide block (42), the firing pin (451), the first air bag (63) and the second air bag (452).

Technical Field

The invention belongs to the field of mine supporting, and particularly relates to a collapse prevention method for a mine roadway working surface.

Background

In the process of advancing mine tunneling and mining, because mining can cause the original stable stratum structure to be damaged, a mining tunnel needs to be supported to prevent collapse, because the stress of a supporting structure is large, and the earth and rock structure of the tunnel is easy to subside under the stress condition, a supporting plate cannot be kept horizontal, and the vibration generated in the mining process can also cause the instability of the supporting surface; a mine support (support in mine) refers to an artificial structure which is arranged in a mine roadway and plays a role in supporting rocks; the device has the functions of controlling the movement of surrounding rocks and preventing the surrounding rocks from falling so as to keep the safe use space of the roadway; the temporary bracket and the permanent bracket are divided according to the using time; the mechanical property of the bracket is divided into rigid and flexible brackets; the material includes wood, metal, stone, reinforced concrete support, etc.

Most of the existing devices for supporting the mine working face are point-supported, are easy to destabilize, have small supporting range, only can support the more prominent part on the upper part of the mine hole in the working process, have poor stability and great danger, and provide supporting force by the cylinder, the supporting force providing unit is single, and when the cylinder damages the pressure relief, the device can directly fail, the collapse of the mine hole can be easily caused, and great potential safety hazards exist.

Disclosure of Invention

The invention provides a collapse prevention method for a mine roadway working surface, which aims to make up for the defects of the prior art and solve the problems that the supporting range is small, the stability is poor, the supporting force providing unit is single, when a cylinder is damaged and the pressure is released, the device can be directly failed, the collapse of a mine tunnel is easy to cause, and the potential safety hazard is large.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a collapse prevention method for a mine roadway working face, which comprises the following steps:

s1: arranging a first layer of top beams on the upper part of the mineral layer, excavating a construction space on the lower part of the first layer of top beams, and then piling in the space to prepare a first layer of upright columns, wherein the downward depth of the first layer of upright columns exceeds the depth of a first layer of mine hole to be mined and the first layer of upright columns extends upwards to the first layer of top beams;

s2: mining minerals at the lower part of the first layer of top beams to form a first layer of mine hole; piling downwards at the bottom of the first layer of mine hole close to the bottom of the first layer of upright column to prepare a second layer of upright column, wherein the downward depth of the second layer of upright column exceeds the depth of the mine hole to be mined in the second layer, and then preparing a second layer of top beam; pouring the bottom of the first layer of upright column and the top of the second layer of upright column together by the second layer of top beam, and pouring the first layer of upright column, the second layer of upright column and the second layer of top beam into an integral structure;

s3: mining a second layer of minerals at the lower part of the second layer of top beam to form a second layer of mine hole; piling downwards at the bottom of the second layer of mine hole close to the bottom of the second layer of stand column to prepare a third layer of stand column, wherein the downward depth of the third layer of stand column exceeds the depth of the third layer of mine hole to be mined, then preparing a third layer of top beam, pouring the bottom of the second layer of stand column and the top of the third layer of stand column together by the third layer of top beam, and pouring the three into an integrated structure;

the supporting device of S4 comprises a bottom plate, arc supports, a cylinder and a top plate, wherein the arc supports are symmetrically hinged on the upper surface of the bottom plate; two ends of the air cylinder are respectively hinged with the rod parts of the two arc-shaped brackets; the lower end of the top plate is provided with a sliding chute; a sliding block is arranged in the sliding groove and is hinged with the end part of the arc-shaped support through a hinge plate; the top plate is jacked up through the matching of the arc-shaped support, the air cylinder and the top plate, and a supporting effect is achieved; during operation, the cylinder provides pressure for the arc support is to both sides expansion, and at the expansion in-process, when the slider position reached extreme position, the arc support continued to expand to both sides through the articulated slab, until the roof by jack-up, has realized the effect of support.

Preferably, a rubber bag is arranged on the top plate; the rubber bag is filled with water-absorbing resin, and the upper end of the rubber bag is provided with a through hole; after water is absorbed by the water-absorbent resin, the volume of the rubber bag is increased, and the support stability is improved; during operation, because the inside air of mine hole is comparatively moist, moisture in the air passes through inside the through-hole entering rubber bag of rubber bag upper end, thereby make water-absorbent resin absorb water the inflation, the volume of rubber bag has been increased, strutting arrangement's working face has been increased promptly, and in water-absorbent resin's inflation process, the gap between rubber bag and the mine hole working face has been filled, from point contact to surface contact between strutting arrangement and the mine hole working face has been realized, strutting arrangement's stationarity has been increased, the potential safety hazard of existence has been reduced.

Preferably, a thin-wall glass tube is arranged in the rubber bag; the thin-wall glass tube is internally provided with a curing agent; after the water-absorbing resin absorbs water, the volume is increased, and the rubber bag is expanded, so that the thin-wall glass tube is crushed, the curing agent flows out, and the water-absorbing resin is cured; the during operation, after water absorption resin absorbed moisture through the through-hole on the rubber bag, the volume began to expand to outside expanded pressure has been produced inside the rubber bag, make thin wall glass pipe broken, make water absorption resin solidify after the inside curing agent flows out, water absorption resin shape after solidifying is fixed, and the hardness increase has increased the holding power of device promptly, and prevent that water absorption resin from taking place to warp to the later stage, thereby influence the supporting effect of device.

Preferably, the bottom plate is symmetrically and fixedly connected with the pillars; the strut is contacted with the side wall of the top plate, the rod part of the strut is hinged with the rod part of the arc-shaped support through a hinge wheel, and the upper end of one side of the strut contacted with the side wall of the top plate is provided with a notch; an L-shaped channel is formed in the top plate; two ends of the L-shaped channel are respectively arranged at the upper end of the top plate and the side wall of the top plate, and the lower port of the L-shaped channel is connected with the notch on the pillar when the top plate is jacked to the highest position; a clamping block is arranged in the L-shaped channel; a hole is formed at the contact part of the rubber bag and the upper end opening of the L-shaped channel; after water absorption and expansion are carried out through the water-absorbent resin, the clamping block is extruded through the L-shaped channel, so that the clamping block is clamped on the notch on the support; the during operation, the cylinder extrudees the arc support to both sides after ventilating, when the arc support is opened completely, notch on the pillar links to each other with the lower port of L shape passageway, through-hole on the rubber bag absorbs in the last port entering L shape passageway through L shape passageway after the moisture inflation, promote the notch on the fixture block blocks the pillar, realize the effect of support, we have just so avoided in whole device, the single problem of power device, when the cylinder damages suddenly when disappointing, also can provide the safety guarantee, and when the cylinder provides atmospheric pressure, can strengthen the holding power to the roof, the stability of increase roof, reduce the potential safety hazard in the working process.

Preferably, in the L-shaped channel, a Z-shaped clamping rod is fixed between the clamping block and the port at the upper end of the L-shaped channel through a torsion spring; after water absorption and expansion are carried out through the water-absorbent resin, the clamping block is extruded, and when the clamping block clamps the notch on the pillar, the Z-shaped clamping rod falls down to clamp the clamping block; during operation, water-absorbent resin promotes the fixture block to move forward after absorbing the moisture inflation through the through-hole on the rubber bag, blocks the notch on the pillar until the fixture block, and Z shape card stick falls the back and blocks the fixture block this moment, has realized the position to the fixture block and has prescribed a limit to, prevents that the unexpected back from appearing in the course of the work, and the fixture block breaks away from the notch to cause the potential safety hazard, reduce device stability.

Preferably, a first air bag is arranged in the notch; the first air bag is filled with a curing agent; the working end of the clamping block is provided with a firing pin, and the tail part of the clamping block is provided with a cavity which is provided with a second air bag; carbon dioxide is filled in the second air bag; the gap between the clamping block and the notch is filled with the curing agent under the action of the sliding block, the firing pin, the first air bag and the second air bag; during operation, when water-absorbing resin promotes the fixture block to move forward after absorbing the moisture inflation through the through-hole on the rubber bag, the firing pin of fixture block front end breaks through gasbag and No. two gasbags, the contact position of fixture block and notch is washd after the inside carbon dioxide blowout of No. two gasbags, the gap between fixture block and the notch has been filled after the inside curing agent of gasbag flows out, prevent in the course of the work, produce between fixture block and the notch and rock, influence the stationarity of device, the cooperation power between pillar and the roof has still been strengthened in the packing of curing agent, the holding power of reinforcing means.

The invention has the following beneficial effects:

1. according to the mine roadway working face collapse prevention method, pressure is provided through the air cylinder, the arc-shaped support is enabled to expand towards two sides, when the slide block position reaches the limit position in the expansion process, the arc-shaped support continues to expand towards the two sides through the hinged plates until the top plate is jacked up, and the supporting effect is achieved.

2. According to the collapse prevention method for the mine roadway working surface, the volume of the rubber bag is increased after the water-absorbent resin absorbs water, the working surface of the supporting device is enlarged, in addition, in the expansion process of the water-absorbent resin, the gap between the rubber bag and the working surface of the mine tunnel is filled, the point contact to surface contact between the supporting device and the working surface of the mine tunnel is realized, and the stability of the supporting device is increased.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a flow chart of the present invention;

FIG. 2 is a perspective view of the support device of the present invention;

FIG. 3 is a cross-sectional view of a support device of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is an enlarged view of a portion of FIG. 3 at B;

FIG. 6 is an enlarged view of a portion of FIG. 3 at C;

FIG. 7 is an enlarged view of a portion of FIG. 3 at D;

in the figure: the device comprises a bottom plate 1, an arc-shaped bracket 2, a cylinder 3, a top plate 4, a sliding chute 41, a sliding block 42, a hinge plate 43, an L-shaped channel 44, a clamping block 45, a firing pin 451, a second air bag 452, a Z-shaped clamping rod 46, a rubber bag 5, a through hole 51, a thin-wall glass tube 52, a support 6, a hinge wheel 61, a notch 62 and a first air bag 63.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 7, the collapse prevention method for the mine roadway working surface comprises the following steps:

s1: arranging a first layer of top beams on the upper part of the mineral layer, excavating a construction space on the lower part of the first layer of top beams, and then piling in the space to prepare a first layer of upright columns, wherein the downward depth of the first layer of upright columns exceeds the depth of a first layer of mine hole to be mined and the first layer of upright columns extends upwards to the first layer of top beams;

s2: mining minerals at the lower part of the first layer of top beams to form a first layer of mine hole; piling downwards at the bottom of the first layer of mine hole close to the bottom of the first layer of upright column to prepare a second layer of upright column, wherein the downward depth of the second layer of upright column exceeds the depth of the mine hole to be mined in the second layer, and then preparing a second layer of top beam; pouring the bottom of the first layer of upright column and the top of the second layer of upright column together by the second layer of top beam, and pouring the first layer of upright column, the second layer of upright column and the second layer of top beam into an integral structure;

s3: mining a second layer of minerals at the lower part of the second layer of top beam to form a second layer of mine hole; piling downwards at the bottom of the second layer of mine hole close to the bottom of the second layer of stand column to prepare a third layer of stand column, wherein the downward depth of the third layer of stand column exceeds the depth of the third layer of mine hole to be mined, then preparing a third layer of top beam, pouring the bottom of the second layer of stand column and the top of the third layer of stand column together by the third layer of top beam, and pouring the three into an integrated structure;

s4: mining a third layer of minerals at the lower part of the third layer of top beams to form a third layer of mine hole; sequentially preparing the supporting devices of the corresponding layers until the minerals of the bottom layer are mined, and completing the mining of the whole mineral layer;

the supporting device of S4 comprises a bottom plate 1, an arc-shaped support 2, a cylinder 3 and a top plate 4, wherein the arc-shaped support 2 is symmetrically hinged on the upper surface of the bottom plate 1; two ends of the cylinder 3 are respectively hinged with the rod parts of the two arc-shaped brackets 2; the lower end of the top plate 4 is provided with a sliding groove 41; a slide block 42 is arranged in the sliding groove 41, and the slide block 42 is hinged with the end part of the arc-shaped support 2 through a hinge plate 43; the top plate 4 is jacked up through the matching of the arc-shaped support 2, the cylinder 3 and the top plate 4, and a supporting effect is achieved; during operation, the air cylinder 3 provides pressure, so that the arc-shaped support 2 is unfolded towards two sides, and in the unfolding process, when the position of the sliding block 42 reaches the limit position, the arc-shaped support 2 is continuously unfolded towards two sides through the hinged plate 43 until the top plate 4 is jacked up, so that the supporting effect is realized.

In one embodiment of the present invention, a rubber bag 5 is provided on the top plate 4; the rubber bag 5 is filled with water-absorbing resin, and the upper end of the rubber bag 5 is provided with a through hole 51; after water is absorbed by the water-absorbent resin, the volume of the rubber bag 5 is increased, and the support stability is improved; during operation, because the inside air of ore hole is comparatively moist, moisture in the air gets into inside rubber bag 5 through-hole 51 of rubber bag 5 upper end, thereby make water-absorbent resin absorb water the inflation, the volume of rubber bag 5 has been increased, strutting arrangement's working face has been increased promptly, and in water-absorbent resin's inflation process, the gap between rubber bag 5 and the ore hole working face has been filled, from point contact to surface contact between strutting arrangement and the ore hole working face has been realized, strutting arrangement's stationarity has been increased, the potential safety hazard of existence has been reduced.

As an embodiment of the present invention, a thin-walled glass tube 52 is provided inside the rubber bladder 5; a curing agent is arranged in the thin-wall glass tube 52; after the water-absorbing resin absorbs water, the volume is increased, and the rubber bag 5 is expanded, so that the thin-wall glass tube 52 is crushed, the curing agent flows out, and the water-absorbing resin is cured; during operation, after water-absorbing resin absorbed moisture through-hole 51 on rubber bag 5, the volume began to expand to outside expanded pressure has been produced inside rubber bag 5, make thin wall glass tube 52 broken, make water-absorbing resin solidify after the inside curing agent flows out, water-absorbing resin shape after solidifying is fixed, the hardness increase has increased the holding power of device promptly, and prevent that water-absorbing resin from taking place to warp to the later stage, thereby influence the supporting effect of device.

As an embodiment of the invention, the bottom plate 1 is symmetrically and fixedly connected with the pillars 6; the strut 6 is contacted with the side wall of the top plate 4, the rod part of the strut 6 is hinged with the rod part of the arc-shaped support 2 through a hinge wheel 61, and the upper end of one side of the strut 6 contacted with the side wall of the top plate 4 is provided with a notch 62; an L-shaped channel 44 is formed in the top plate 4; two ends of the L-shaped channel 44 are respectively arranged at the upper end of the top plate 4 and the side wall of the top plate 4, and the lower port of the L-shaped channel 44 is connected with the notch 62 on the pillar 6 when the top plate 4 is jacked to the highest position; a clamping block 45 is arranged in the L-shaped channel 44; a hole is formed at the contact position of the rubber bag 5 and the upper end opening of the L-shaped channel 44; after water absorption and expansion of the water-absorbent resin, the clamping block 45 is extruded through the L-shaped channel 44, so that the clamping block 45 is clamped on the notch 62 on the support 6; during operation, after ventilating, the cylinder 3 extrudes the arc-shaped support 2 to both sides, when the arc-shaped support 2 is completely opened, the notch 62 on the pillar 6 is connected with the lower port of the L-shaped channel 44, the through hole 51 on the rubber bag 5 absorbs moisture to expand and then enters the L-shaped channel 44 through the upper port of the L-shaped channel 44, the notch 62 on the pillar 6 is clamped by the pushing fixture block 45, the supporting effect is realized, and therefore the problem that the power device is single is solved in the whole device, when the cylinder 3 is suddenly damaged and leaked, safety guarantee can be provided, and when the cylinder 3 provides air pressure, the supporting force of the top plate 4 can be enhanced, the stability of the top plate 4 is increased, and the potential safety hazard in the working process is reduced.

As an embodiment of the invention, a Z-shaped clamping rod 46 is fixed between the clamping block 45 and the port at the upper end of the L-shaped channel 44 in the L-shaped channel 44 through a torsion spring; after the water absorption resin absorbs water and expands, the fixture block 45 is extruded, and when the fixture block 45 clamps the notch 62 on the support 6, the Z-shaped fixture rod 46 falls down to clamp the fixture block 45; during operation, water-absorbent resin promotes fixture block 45 to move forward after absorbing the moisture inflation through-hole 51 on the rubber bag 5, blocks notch 62 on the pillar 6 until fixture block 45, and Z shape card stick 46 blocks fixture block 45 after falling down this moment, has realized the position to fixture block 45 and has prescribed a limit, prevents that unexpected back from appearing in the course of the work, and fixture block 45 breaks away from notch 62 to cause the potential safety hazard, reduce device stability.

In one embodiment of the present invention, a first air bag 63 is disposed in the notch 62; the first air bag 63 is filled with a curing agent; the working end of the fixture block 45 is provided with a firing pin 451, and the tail part of the firing pin 451 of the fixture block 45 is provided with a cavity in which a second air bag 452 is arranged; the second air bag 452 is filled with carbon dioxide; the curing agent is filled in the gap between the fixture block 45 and the notch 62 through the actions of the slide block 42, the firing pin 451, the first air bag 63 and the second air bag 452; when the device works, when the water-absorbent resin absorbs water through the through hole 51 in the rubber bag 5, the water-absorbent resin expands to push the fixture block 45 to move forwards, the striker 451 at the front end of the fixture block 45 collides with the first air bag 63 and the second air bag 452, the contact position of the fixture block 45 and the notch 62 is cleaned after the carbon dioxide in the second air bag 452 is sprayed out, the gap between the fixture block 45 and the notch 62 is filled after the curing agent in the first air bag 63 flows out, the situation that in the working process, the fixture block 45 and the notch 62 shake to influence the stability of the device is prevented, the matching force between the support 6 and the top plate 4 is enhanced due to the filling of the curing agent, and the supporting force of the device is enhanced.

When the support device works, the air cylinder 3 provides pressure to enable the arc-shaped support 2 to be unfolded towards two sides, and in the unfolding process, when the position of the sliding block 42 reaches the limit position, the arc-shaped support 2 is continuously unfolded towards two sides through the hinged plate 43 until the top plate 4 is jacked up, so that the support effect is realized; because the air in the mine hole is relatively humid, moisture in the air enters the rubber bag 5 through the through hole 51 at the upper end of the rubber bag 5, so that the water-absorbent resin absorbs water and expands, the volume of the rubber bag 5 is increased, namely the working surface of the supporting device is increased, and in the expansion process of the water-absorbent resin, the gap between the rubber bag 5 and the working surface of the mine hole is filled, the supporting device and the working surface of the mine hole are in point-to-surface contact, the stability of the supporting device is increased, and the potential safety hazard is reduced; after the water-absorbent resin absorbs water through the through holes 51 on the rubber bag 5, the volume begins to expand, so that outward expansion pressure is generated inside the rubber bag 5, the thin-wall glass tube 52 is crushed, the water-absorbent resin is solidified after the internal curing agent flows out, the shape of the solidified water-absorbent resin is fixed, the hardness is increased, namely, the supporting force of the device is increased, and the water-absorbent resin is prevented from deforming in the later period, so that the supporting effect of the device is influenced; after the air cylinder 3 is ventilated, the arc-shaped support 2 is extruded towards two sides, when the arc-shaped support 2 is completely opened, the notch 62 on the support 6 is connected with the lower port of the L-shaped channel 44, the water is absorbed by the through hole 51 on the rubber bag 5, the water is expanded and enters the L-shaped channel 44 through the upper port of the L-shaped channel 44, the fixture block 45 is pushed to clamp the notch 62 on the support 6, and the supporting effect is realized, so that the problem that a power device is single in the whole device is solved, when the air cylinder 3 is suddenly damaged and deflated, safety guarantee can be provided, when the air cylinder 3 provides air pressure, the supporting force on the top plate 4 can be enhanced, the stability of the top plate 4 is improved, and the potential safety hazard in the working process is reduced; the water-absorbent resin absorbs water through the through hole 51 on the rubber bag 5, expands and pushes the fixture block 45 to move forwards until the fixture block 45 is clamped on the notch 62 on the support 6, and at the moment, the Z-shaped clamping rod 46 falls down to clamp the fixture block 45, so that the position limitation of the fixture block 45 is realized, and the fixture block 45 is prevented from being separated from the notch 62 after an accident occurs in the working process, thereby causing potential safety hazards and reducing the stability of the device; when the water-absorbent resin absorbs moisture through the through hole 51 in the rubber bag 5 and expands to push the fixture block 45 to move forward, the striker 451 at the front end of the fixture block 45 collides with the first air bag 63 and the second air bag 452, carbon dioxide in the second air bag 452 is sprayed out to clean the contact position of the fixture block 45 and the notch 62, and the curing agent in the first air bag 63 flows out to fill the gap between the fixture block 45 and the notch 62, so that the situation that the shaking is generated between the fixture block 45 and the notch 62 in the working process to influence the stability of the device is prevented, the matching force between the support 6 and the top plate 4 is enhanced by filling the curing agent, and the supporting force of the device is enhanced.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.