阅读说明：本技术 一种煤矿巷道支护的组合结构 (Combined structure for coal mine roadway support ) 是由 张辉 张治福 李明峰 于 2021-08-18 设计创作，主要内容包括：本发明是一种煤矿巷道支护的组合结构,包括支撑杆,支撑固定于支撑杆上方的顶板,位于巷道两侧的每两个支撑杆间从上至下设置有支撑板和排水箱,所述支撑板上设有开设有若干通孔,每个排水箱底面沿巷道宽度方向开设有底槽,每个排水箱的前后两端底部均设有与排水箱内腔相连通的水管,每个排水箱上的水管与相邻排水箱上的水管对接。本发明在矿壁渗水时通过支撑板上的通孔流至排水箱顶部的过滤网,并通过水槽流至水管内,同时矿壁底部的渗水可通过排水箱底部的底槽流至矿道内,并由工人将其和矿道地面上的积水一起铲到过滤网上,流至水管内,并通过矿道内依次相连接的水管集中至矿道最低处设置的集水坑内,然后通过抽水装置将其输送至矿道外。(The invention relates to a combined structure for supporting a coal mine tunnel, which comprises supporting rods, a top plate fixedly supported above the supporting rods, a supporting plate and a water drainage box arranged between every two supporting rods positioned at two sides of the tunnel from top to bottom, wherein a plurality of through holes are formed in the supporting plate, a bottom groove is formed in the bottom surface of each water drainage box along the width direction of the tunnel, water pipes communicated with the inner cavity of the water drainage box are arranged at the bottoms of the front end and the rear end of each water drainage box, and the water pipe on each water drainage box is butted with the water pipe on the adjacent water drainage box. When water seeps from the mine wall, the water seeps into the filter screen at the top of the drainage box through the through holes in the supporting plate and flows into the water pipe through the water tank, meanwhile, the seeped water at the bottom of the mine wall can flow into the mine channel through the bottom groove at the bottom of the drainage box, and is shoveled onto the filter screen together with accumulated water on the ground of the mine channel by workers, flows into the water pipe, and is collected into a water collecting pit arranged at the lowest part of the mine channel through the water pipes sequentially connected in the mine channel, and then is conveyed out of the mine channel through the water pumping device.)

1. A combined structure for supporting a coal mine roadway is characterized by comprising at least two supporting rods (1) which are respectively supported at two sides of the roadway, a top plate (2) which is supported and fixed above the adjacent and opposite supporting rods (1),

be located between per two bracing pieces (1) of tunnel both sides from last to being provided with backup pad (9) and drain box (13) down, be equipped with on backup pad (9) and seted up a plurality of through-holes (10), a plurality of kerfs (4) have been seted up along tunnel width direction in every drain box (13) bottom surface, both ends bottom all is equipped with water pipe (7) that are linked together with drain box (13) inner chamber around every drain box (13), and water pipe (7) on every drain box (13) and the water pipe (7) butt joint on adjacent drain box (13).

2. A coal mine roadway support combination structure as claimed in claim 1, wherein a filter screen (8) is fixedly mounted on the top of each drainage box (13).

3. A coal mine roadway support composite structure according to claim 2, wherein each filter screen (8) is arranged to be gradually inclined downwards from outside to inside.

4. A coal mine roadway support composite structure according to claim 1, wherein the inner cavity of the drainage box (13) is gradually reduced from top to bottom.

5. A coal mine roadway support assembly as claimed in claim 1, wherein the support rods (1) are connected to the support plate (9) and the drainage box (13) by at least one mounting clip (6).

6. A coal mine roadway support combination according to claim 5, wherein the mounting clamp (6) comprises two mounting hoops (601) which are butted together through bolts and are matched with the loop of the support rod (1), a mounting plate (602) extends out of the same end of the mounting hoops (601), a threaded rod (603) is respectively arranged on each mounting plate (602), and a nut (604) is in threaded fit on each threaded rod (603).

7. A coal mine roadway support combined structure according to claim 6, wherein a mounting side plate (11) extends from the supporting plate (9) corresponding to the mounting hoop (601), and a mounting hole (12) which is penetrated and matched with the threaded rod (603) is formed in the mounting side plate (11).

8. A coal mine roadway support composite structure according to claim 1, wherein the support rod (1) is provided with at least one fixing clamp (3) connected with the inner wall of the roadway.

9. A coal mine roadway support combination structure as claimed in claim 8, wherein the fixing clamp (3) comprises two fixing hoop rings (301) which are butted together through bolts and matched with the loop rings of the support rods (1), a fixing plate (302) extends from the same end of the fixing hoop rings (301), each fixing plate (302) is provided with a threaded hole (303), and each threaded hole (303) is matched with an expansion bolt (304) in a threaded mode.

10. The coal mine roadway support combined structure according to claim 1, wherein a flange plate (5) is arranged at the end part of each water pipe (7), and adjacent water pipes (7) are in butt joint connection through the flange plates (5).

Technical Field

The invention relates to the field of coal mine roadway support, in particular to a combined structure of coal mine roadway support.

Background

Coal mine roadways are a general term for various underground spaces that are cut in different directions in different rocks, at different inclinations, and in different sections and lengths, serve different areas, and serve different purposes. The coal mine roadways are named and classified according to the space size, the inclination angle direction, the position, the service range, the application and the like, and the basic purpose of supporting the roadways is to alleviate and reduce the movement of surrounding rocks, so that the section of the roadway is not excessively reduced, and meanwhile, the scattered and damaged surrounding rocks are prevented from falling off.

Because the colliery is mostly underground mining, there is the groundwater seepage easily in the coal mine tunnel, and the inside ponding of ore deposit way is if not in time clearance, not only can influence the work of opening a mine, still can cause the ore deposit way to collapse, causes the incident, but the most simple support function that only possesses of current coal mine tunnel supporting device lacks drainage device, is not convenient for in time handle the ponding in the ore deposit way.

In order to solve the problems, innovative design is urgently needed on the basis of the original coal mine roadway supporting structure.

Disclosure of Invention

The invention provides a combined structure for coal mine roadway support, aiming at the problem that the original coal mine roadway support structure is lack of a drainage device.

The invention is realized by the following technical scheme: a combined structure for supporting the coal mine tunnel comprises at least two supporting rods respectively supported at two sides of the tunnel, a top plate supported and fixed above the adjacent and opposite supporting rods,

be located between per two bracing pieces of tunnel both sides from last backup pad and the drain box of being provided with down, be equipped with in the backup pad and seted up a plurality of through-holes, a plurality of kerfs have been seted up along tunnel width direction in every drain box bottom surface, and both ends bottom all is equipped with the water pipe that is linked together with the drain box inner chamber around every drain box, and the water pipe on every drain box is connected with the water pipe butt joint on the adjacent drain box.

As a further improvement of the technical scheme of the invention, a filter screen is fixedly arranged at the top of each drainage box.

As a further improvement of the technical scheme of the invention, each filter screen is gradually and downwards inclined from outside to inside.

As a further improvement of the technical scheme of the invention, the inner cavity of the drainage box is gradually reduced from top to bottom.

As a further improvement of the technical scheme of the invention, the support rod is connected with the support plate and the drainage box through at least one mounting hoop respectively.

As a further improvement of the technical scheme of the invention, the mounting hoop comprises two mounting hoops which are butted together through bolts and matched with the supporting rod loop, and mounting plates which extend out of the same ends of the mounting hoops, wherein each mounting plate is respectively provided with a threaded rod, and each threaded rod is in threaded fit with a nut.

As a further improvement of the technical scheme of the invention, a mounting side plate extends from the supporting plate corresponding to the mounting hoop, and a mounting hole which is in penetrating fit with the threaded rod is formed in the mounting side plate.

As a further improvement of the technical scheme of the invention, at least one fixed clamp connected with the inner wall of the roadway is arranged on the support rod.

As a further improvement of the technical scheme of the invention, the fixing hoop comprises two fixing hoop rings which are butted together through bolts and matched with the support rod loop, and fixing plates which extend out of the same end of the fixing hoop rings, wherein each fixing plate is provided with a threaded hole, and each threaded hole is in threaded fit with an expansion bolt.

As a further improvement of the technical scheme of the invention, the end parts of the water pipes are provided with flanges, and the adjacent water pipes are in butt joint connection through the flanges.

The combined structure of the coal mine roadway support can flow to the filter screen at the top of the drainage box through the through holes in the support plate when water seeps from the mine wall, and flow into the water pipe through the water tank, meanwhile, the seeped water at the bottom of the mine wall can flow into the mine channel through the bottom groove at the bottom of the drainage box, and is shoveled onto the filter screen together with the accumulated water on the ground of the mine channel by workers, and flows into the water pipe after sand and stone are filtered by the filter screen, and is concentrated into the water collection pit arranged at the lowest part of the mine channel through the water pipes sequentially connected in the mine channel, and then is conveyed out of the mine channel through the water pumping device, so that the accumulated water in the mine channel is treated in time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an overall structural schematic diagram of a combined structure of a coal mine roadway support according to the present invention;

FIG. 2 is a schematic front sectional view of the composite structure of the coal mine roadway support of the present invention;

FIG. 3 is a schematic view of the support plate of the present invention;

FIG. 4 is a schematic view of the retainer clip of the present invention;

FIG. 5 is a schematic view of the construction of the mounting clip of the present invention.

In the figure: 1. a support bar; 2. a top plate; 3. fixing a clamp; 301. fixing a hoop; 302. a fixing plate; 303. a threaded hole; 304. an expansion bolt; 4. a bottom groove; 5. a flange plate; 6. installing a clamp; 601. installing a hoop; 602. mounting a plate; 603. a threaded rod; 604. a nut; 7. a water pipe; 8. a filter screen; 9. a support plate; 10. a through hole; 11. installing a side plate; 12. mounting holes; 13. a drainage tank.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present invention provides a concrete embodiment of a composite structure for coal mine roadway support, which comprises at least two support rods 1 supported on both sides of a roadway, a top plate 2 supported and fixed on adjacent and opposite support rods 1,

every two bracing pieces 1 that are located the tunnel both sides are provided with backup pad 9 and drain tank 13 from last to down, be equipped with in the backup pad 9 and seted up a plurality of through-holes 10, a plurality of kerfs 4 have been seted up along tunnel width direction in every drain tank 13 bottom surface, and both ends bottom all is equipped with the water pipe 7 that is linked together with the drain tank 13 inner chamber around every drain tank 13, and the water pipe 7 on every drain tank 13 is connected with the water pipe 7 butt joint on the adjacent drain tank 13. The top of each drainage box 13 is fixedly provided with a filter screen 8.

During the use, through-hole 10 on the backup pad 9 flows to the filter screen 8 at drainage box 13 top during the ore wall infiltration, and flow to in the water pipe 7 through drainage box 13 inner chamber, simultaneously the infiltration of ore wall bottom can flow to the mine way in through the kerve 4 of drainage box 13 bottom, and shovel it to filter screen 8 with the subaerial ponding of mine way together by the workman, after filtering the grit through filter screen 8, flow to in the water pipe 7, and concentrate to the sump pit that the lowest department of mine way set up through water pipe 7 that links gradually in the mine way in, then carry it outside the mine way through pumping device.

As shown in FIG. 2, in order to collect the sand and stone filtered by the filtering net 8 to the roadway floor, and to avoid the sand and stone from accumulating too much to affect the filtering effect of the filtering net 8, each filtering net 8 is inclined downwards gradually from the outside to the inside. After the sand and stone are filtered by the filter screen 8, the sand and stone can roll down to the ground of the roadway, so that workers can conveniently collect and treat the sand and stone in a centralized manner.

In order to enable the water in the drainage box 13 to be drained through the water pipe 7 as much as possible, as shown in fig. 2, the inner cavity of the drainage box 13 is gradually reduced from top to bottom. The water in the drainage tank 13 can be completely collected in the water pipe 7, and the drainage is smoother.

In specific implementation, as shown in fig. 1, the support rod 1 is connected with the support plate 9 and the drain tank 13 through at least one mounting clamp 6.

As shown in FIG. 5, the present invention provides an embodiment of a mounting clip 6, wherein the mounting clip 6 includes two mounting rings 601 coupled together by bolts and engaged with loops of the support pole 1, and mounting plates 602 extending from the same ends of the mounting rings 601, each mounting plate 602 having a threaded rod 603 thereon, each threaded rod 603 having a nut 604 thereon.

When the installation is carried out, an installation side plate 11 extends from the support plate 9 corresponding to the installation hoop 601, and an installation hole 12 which is matched with the threaded rod 603 in a penetrating way is formed in the installation side plate 11. The connection between two adjacent support parts 9 can be achieved by one of the threaded rods 603 of the mounting clip 6 passing through the mounting hole 12 on one side of the support plate 9 and then being screwed into engagement with the nut 604, and the other threaded rod 603 passing through the mounting hole 12 on one side of the adjacent support plate 9 and then being screwed into engagement with the nut 604.

In this embodiment, three mounting clips 6 may be provided on each support rod 1 from top to bottom. Similarly, the threaded rods 603 on both sides of the mounting clip 6 may be connected to adjacent drain boxes 13, respectively. This structure enables quick connection of adjacent structures according to the invention.

During the specific application, be provided with at least one fixed clamp 3 that is connected with the tunnel inner wall on the bracing piece 1.

As shown in fig. 4, the present invention provides an embodiment of a fixing clip 3, in which the fixing clip 3 includes two fixing ring bands 301 coupled together by bolts and fitted around the loop of the strut 1, fixing plates 302 extending from the same ends of the fixing ring bands 301, each fixing plate 302 having a threaded hole 303, and each threaded hole 303 having an expansion bolt 304 screwed therein. The support rod 1 can be fixedly mounted on the mine wall by means of the expansion bolts 304.

In this embodiment, the upper and lower ends of the support rod 1 may be respectively provided with fixing clips 3, which enable the structure of this embodiment to be quickly installed on the mine wall.

Specifically, the end parts of the water pipes 7 are provided with flanges 5, and the adjacent water pipes 7 are in butt joint connection through the flanges 5.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.