CN211397603U - Coal seam roof waterproof supporting structure - Google Patents
Coal seam roof waterproof supporting structure Download PDFInfo
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- CN211397603U CN211397603U CN201922156257.7U CN201922156257U CN211397603U CN 211397603 U CN211397603 U CN 211397603U CN 201922156257 U CN201922156257 U CN 201922156257U CN 211397603 U CN211397603 U CN 211397603U
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- Prior art keywords
- coal seam
- supporting
- roof
- plate
- seam roof
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- 239000003245 coal Substances 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 13
- 235000019738 Limestone Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
A coal seam roof waterproof supporting structure is formed by splicing a plurality of multilayer plate structures which are jacked up by virtue of stand columns to support a coal seam roof, each multilayer plate structure sequentially comprises a supporting roof, side guard plates and a reinforcing bottom plate from top to bottom, the side guard plates connect the supporting roof and the side edges of the reinforcing bottom plate to form a ventilation cavity with openings at two ends, a U-shaped groove with an upward opening is arranged in the ventilation cavity, a closed water guide pipeline with openings at two ends is further enclosed, and each closed water guide pipeline is provided with a drain hole which penetrates through the reinforcing bottom plate downwards; a plurality of water permeable holes are arranged on the supporting top plate, so that the drenching water of the coal seam top plate enters the closed water guide pipeline through the water permeable holes. The utility model discloses a waterproof supporting construction can be when strutting the coal seam roof, and the drenching water that will disperse is unified to assemble the back and is concentrated to lead and draw and concentrate the emission, has improved operational environment effectively, also plays fine support to the stability of coal seam roof moreover.
Description
Technical Field
The utility model relates to coal seam roof trickle prevention and cure in the coal exploitation field, specific coal seam roof waterproof supporting structure that says so.
Background
The coal seam roof refers to a rock stratum which is covered on the coal seam in the coal-bearing stratum section of the normal sequence. It is a sediment that covers the peat layer after the peat is piled up. Common coal seam roof rocks mainly comprise fine clastic rocks and limestone and also comprise coarse clastic rocks.
The roof of a coal seam is generally divided into the following layers:
1) pseudo-top: the coal mining device is a thin rock stratum which is tightly attached to a coal seam and is easy to collapse along with the extraction of coal, the thickness of the thin rock stratum is generally 0.3-0.5m, and the thin rock stratum is mostly composed of shale, carbonaceous shale and the like;
2) directly ejecting: the artificial rock is directly positioned on a false roof or a rock layer (such as without the false roof), often collapses along with the withdrawal of a support, has the thickness of 1-2m, and is mostly composed of mudstone, rock, siltstone and other rocks which are easy to collapse;
3) basic top: also known as the old roof, is a thick, hard rock formation located directly above the direct roof or directly above the coal seam (where there is no direct roof and false roof). Often hang above the gob for a period of time until a significant area is reached before caving in, usually consisting of hard rocks such as sandstone, conglomerate, limestone, etc.
The coal seam roof water spraying is one of main factors influencing and restricting the coal mine operation environment, and generally, the roof water spraying amount is limited due to the weak water-rich property of a roof water-bearing layer and a large mining area, so that the mine safety structure is not threatened. But the water quantity is dispersed, so that the working environment is greatly influenced, the excavation operation is influenced, and the production is restricted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that current coal seam roof trickle causes the influence to operational environment, the utility model provides a coal seam roof waterproof supporting structure, this waterproof supporting structure can be when strutting the coal seam roof, concentrate the guide after assembling the trickle of dispersion in unison and draw and concentrate the emission, have improved operational environment effectively, also play fine support to the stability of coal seam roof moreover.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a coal seam roof waterproof supporting structure is formed by splicing a plurality of multilayer plate structures which are jacked up by virtue of stand columns to support a coal seam roof, each multilayer plate structure is sequentially composed of a supporting roof, side guard plates and a reinforcing bottom plate from top to bottom, wherein the upper surface of the supporting top plate is contacted with the coal seam top plate, the two sides of the lower surface of the supporting top plate and the upper surface of the reinforcing bottom plate along the length direction are connected into a whole through two side guard plates, thereby forming a ventilation cavity with two open ends between the supporting top plate and the reinforcing bottom plate, a plurality of U-shaped grooves with upward openings are arranged in the ventilation cavity, the tips of the bottoms of the U-shaped grooves are welded on the reinforcing bottom plate, the two sides of the opening at the top are welded on the bottom surface of the supporting top plate, closed water guide pipelines with openings at two ends are formed, and each closed water guide pipeline is provided with a drain hole which penetrates through the reinforced bottom plate downwards; the part of the supporting top plate corresponding to the closed water guide pipeline is provided with water permeable holes penetrating through the thickness direction of the supporting top plate, so that the drenching water of the coal seam top plate enters the closed water guide pipeline through the water permeable holes and flows to the drain holes along with the closed water guide pipeline to be discharged in a concentrated mode.
The utility model discloses a preferred embodiment does, every multilayer plate structure length direction's both ends are provided with connecting pin hole respectively and correspond the connecting pin that matches rather than to make two adjacent multilayer plate structures realize its length direction's concatenation through the cooperation of connecting pin hole and connecting pin and extend.
Another preferred embodiment of the present invention is that the upper surface of the supporting top plate is provided with at least one recessed portion extending along the length direction thereof, and the water permeable holes are distributed at the bottom of the recessed portion; and a jacking supporting part contacted with the coal seam roof is formed between the concave part and the edge of the supporting roof in the length direction and between the concave parts.
Another preferred embodiment of the utility model is, the bottom both sides and the both ends of consolidating the bottom plate are provided with the connecting seat that is used for being connected with the stand respectively.
The utility model discloses a another preferred embodiment does, U type groove length direction's both ends and ventilation chamber length direction's both ends parallel and level to make two multiply wood structure concatenations the back, U type groove in it aligns.
Another preferred embodiment of the present invention is that, two adjacent U-shaped groove side walls are connected together at the top.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the utility model realizes the support of the coal seam roof by matching the waterproof supporting structure and the upright column at the bottom of the coal seam roof, the waterproof supporting structure consists of a supporting roof, a side guard plate and a reinforcing bottom plate, the side guard plate connects the supporting roof and the reinforcing bottom plate to form a ventilation cavity, and the ventilation cavity can be communicated with an underground ventilation pipeline, thereby realizing the air supply of the underground mine; a plurality of U-shaped grooves with upward openings are arranged in the ventilation cavity, and water permeable holes are formed in the supporting top plates corresponding to the U-shaped grooves, so that the drenching water of the coal seam top plate enters the U-shaped grooves through the water permeable holes to be converged and flows to the water discharge holes along the U-shaped grooves to be discharged in a centralized manner, the scattered drenching water is converged uniformly and then is guided out in a centralized manner to be discharged in a centralized manner, and the working environment is effectively improved;
2) the utility model discloses set up a plurality of U type grooves in the ventilation chamber, except that U type groove can accept the guide trickle and concentrate exhaust effect, still play when reducing the whole weight of waterproof supporting construction, promote the effect of its intensity (be equivalent to set up a plurality of strengthening ribs that distribute along its length direction in the ventilation chamber).
Drawings
FIG. 1 is a view in the length direction of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a sectional view of the present invention;
reference numerals: 1. supporting top plate, 101, depressed part, 102, the hole of permeating water, 103, jack-up supporting part, 2, side guard plate, 3, reinforcing bottom plate, 4, connecting seat, 5, connecting pin hole, 6, connecting pin, 7, ventilation chamber, 8, U type groove, 801, closed water pipe way, 802, wash port.
Detailed Description
The technical solution of the present invention will be further illustrated and described with reference to the following specific embodiments.
Example 1
A coal seam roof waterproof supporting structure is shown in figures 1-3 and is formed by splicing a plurality of multilayer plate structures which are jacked up by virtue of stand columns to support a coal seam roof, each multilayer plate structure is sequentially composed of a supporting roof 1, two side protection plates 2 and a reinforcing bottom plate 3 from top to bottom, the materials of the multilayer plate structures are generally made of metal materials, wherein the upper surface of the supporting roof 1 is in contact with the coal seam roof, the lower surface of the supporting roof 1 and the upper surface of the reinforcing bottom plate 3 are connected into a whole (optionally welded) through the two side protection plates 2 along the length direction, so that a ventilation cavity 7 with two ends opened is formed between the supporting roof 1 and the reinforcing bottom plate 3, a plurality of U-shaped grooves 8 with upward openings are arranged in the ventilation cavity 7, the axial directions of the U-shaped grooves 8 are consistent with the length direction of the ventilation cavity 7, and the tips of the bottoms of the U-shaped, the two sides of the opening at the top are welded on the bottom surface of the supporting top plate 1, and closed water guide pipelines 801 with openings at two ends are formed, each closed water guide pipeline 801 is provided with a drain hole 802 which penetrates through the reinforcing bottom plate 3 downwards, and the arrangement positions of the drain holes 802 are unified as much as possible so as to be convenient for overall arrangement of collection and discharge of the drenched water; the supporting roof 1 is provided with water permeable holes 102 penetrating through the thickness direction thereof at portions corresponding to the closed water guide pipes 801, so that the water sprayed from the coal seam roof enters the closed water guide pipes 801 through the water permeable holes 102 and flows along the closed water guide pipes 801 to the drain holes 802 to be discharged in a concentrated manner.
In this embodiment, the length of the coal seam roof that can support as required selects the multilayer structure concatenation of corresponding quantity to form, and the length of each multilayer structure also can set up according to actual need, generally selects 1-2m long, and the reinforced bottom plate 3 of its below sets up the stand as actual need and supports.
In this embodiment, the thicknesses of the supporting top plate 1, the two side guard plates 2 and the reinforcing bottom plate 3 can be designed according to specific situations, and are not described herein.
Example 2
The present embodiment is a specific limiting scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, except that: as shown in fig. 1 and 2, two ends of each multi-layer plate structure in the length direction are respectively provided with a connecting pin hole 5 and a connecting pin 6 correspondingly matched with the connecting pin hole, so that two adjacent multi-layer plate structures can be spliced and extended in the length direction through the matching of the connecting pin hole 5 and the connecting pin 6.
Example 3
The present embodiment is another specific limiting scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, except that: as shown in fig. 2 and 3, the upper surface of the top supporting plate 1 is provided with at least one recess 101 extending along the length direction thereof, and the water permeable holes 102 are distributed at the bottom of the recess 101; a jack-up support 103 is formed between the recess 101 and the edge of the support roof 1 in the longitudinal direction and between the recess 101 and the roof of the coal seam.
Example 4
The present embodiment is another specific limiting scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, except that: as shown in fig. 1 and 3, two sides and two ends of the bottom of the reinforcing bottom plate 3 are respectively provided with a connecting seat 4 for connecting with a column.
In this embodiment, the connecting seat 4 is actually a metal clamping seat, and the top end of the upright post can be clamped therein; the connecting seat 4 is arranged in such a manner that there is one reinforcing bottom plate 3 at each of four corners in principle, but if the length of the reinforcing bottom plate 3 is longer, the connecting seat 4 can be added at a proper position in the middle.
Example 5
The present embodiment is another specific limiting scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, except that: as shown in fig. 3, two ends of the U-shaped groove 8 in the length direction are flush with two ends of the ventilation cavity 7 in the length direction, so that the U-shaped groove 8 in the two multi-layer board structures are aligned after being spliced.
Example 6
The present embodiment is another specific limiting scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, except that: as shown in fig. 3, the tops of the side walls of two adjacent U-shaped grooves 8 are connected together.
In the present embodiment, the U-shaped grooves 8 are provided according to the width of the top support plate 1, and in principle, at least two U-shaped grooves 8 are symmetrically provided on both sides of the top support plate 1, taking the center line thereof as a symmetry line.
Claims (6)
1. The utility model provides a coal seam roof waterproof supporting construction, this waterproof supporting construction relies on the stand to form its jack-up with the multiply wood structure concatenation that supports the coal seam roof its characterized in that by a plurality of pieces: each multi-layer plate structure is composed of a supporting top plate (1), a side guard plate (2) and a reinforcing bottom plate (3) from top to bottom in sequence, wherein the upper surface of the supporting top plate (1) is contacted with the coal seam top plate, the two sides of the lower surface of the supporting top plate and the upper surface of the reinforcing bottom plate (3) along the length direction are connected into a whole through two side guard plates (2), thereby forming a ventilation cavity (7) with two open ends between the supporting top plate (1) and the reinforcing bottom plate (3), a plurality of U-shaped grooves (8) with upward openings are arranged in the ventilation cavity (7), the tips of the bottoms of the U-shaped grooves (8) are welded on the reinforced bottom plate (3), the two sides of the opening at the top are welded on the bottom surface of the supporting top plate (1), closed water guide pipelines (801) with openings at two ends are formed, and each closed water guide pipeline (801) is provided with a drain hole (802) which penetrates through the reinforced bottom plate (3) downwards; the part of the supporting roof (1) corresponding to the closed water guide pipeline (801) is provided with water permeable holes (102) penetrating through the thickness direction of the supporting roof, so that the drenching water of the coal seam roof enters the closed water guide pipeline (801) through the water permeable holes (102) and flows to the drain hole (802) along with the closed water guide pipeline (801) to be intensively discharged.
2. The coal seam roof waterproof supporting structure of claim 1, characterized in that: every the both ends of multilayer plate structure length direction are provided with connecting pin hole (5) respectively and correspond the connecting pin (6) that match rather than to make two adjacent multilayer plate structures realize its length direction's concatenation extension through the cooperation of connecting pin hole (5) and connecting pin (6).
3. The coal seam roof waterproof supporting structure of claim 1, characterized in that: the upper surface of the supporting top plate (1) is provided with at least one concave part (101) extending along the length direction of the supporting top plate, and the water permeable holes (102) are distributed at the bottom of the concave part (101); and a jacking supporting part (103) which is contacted with the coal seam roof is formed between the concave part (101) and the edge of the supporting roof (1) in the length direction and between the concave parts (101).
4. The coal seam roof waterproof supporting structure of claim 1, characterized in that: and connecting seats (4) used for being connected with the stand columns are respectively arranged on two sides and two ends of the bottom of the reinforcing bottom plate (3).
5. The coal seam roof waterproof supporting structure of claim 1, characterized in that: u type groove (8) length direction's both ends and ventilation chamber (7) length direction's both ends parallel and level to make two multiply wood structures splice the back, U type groove (8) in it align.
6. The coal seam roof waterproof supporting structure of claim 1, characterized in that: the tops of the side walls of two adjacent U-shaped grooves (8) are connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156257.7U CN211397603U (en) | 2019-12-05 | 2019-12-05 | Coal seam roof waterproof supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156257.7U CN211397603U (en) | 2019-12-05 | 2019-12-05 | Coal seam roof waterproof supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397603U true CN211397603U (en) | 2020-09-01 |
Family
ID=72222377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922156257.7U Expired - Fee Related CN211397603U (en) | 2019-12-05 | 2019-12-05 | Coal seam roof waterproof supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397603U (en) |
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2019
- 2019-12-05 CN CN201922156257.7U patent/CN211397603U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 Termination date: 20201205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |