CN111622802A - Method for rapidly penetrating and oppositely pulling anchor rod through large-mining-height high-water filling material gob-side entry retaining - Google Patents
Method for rapidly penetrating and oppositely pulling anchor rod through large-mining-height high-water filling material gob-side entry retaining Download PDFInfo
- Publication number
- CN111622802A CN111622802A CN202010182350.XA CN202010182350A CN111622802A CN 111622802 A CN111622802 A CN 111622802A CN 202010182350 A CN202010182350 A CN 202010182350A CN 111622802 A CN111622802 A CN 111622802A
- Authority
- CN
- China
- Prior art keywords
- gob
- anchor rods
- height
- pulling anchor
- opposite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000005065 mining Methods 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 40
- 230000003014 reinforcing effect Effects 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/02—Supporting means, e.g. shuttering, for filling-up materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/02—Supporting means, e.g. shuttering, for filling-up materials
- E21F15/04—Stowing mats; Goaf wire netting; Partition walls
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention provides a method for quickly penetrating opposite-pulling anchor rods of a high-water filling material along a gob-side entry retaining in large mining height, which comprises the steps of firstly penetrating the uppermost row of opposite-pulling anchor rods into a first row of reserved holes, but not constructing at a preset height, constructing at a first working height H1, then gradually lifting the first opposite-pulling anchor rods to the height H2 of a filling space, at the moment, completely penetrating the first opposite-pulling anchor rods, then suspending a filling bag on a top plate of the filling space through a binding belt, and forming the filling bag in a hanging manner, wherein all opposite-pulling anchor rod holes (reserved holes) at the lower part of the first row of reserved holes are completely displayed, so that conditions are created for efficient and quick construction of the rest opposite-pulling anchor rods, and finally penetrating the opposite-pulling anchor rods from inside to outside according to the sequence from top to bottom. Therefore, the method is more efficient, rapid, safe and reliable, saves the construction time of high-water filling materials along the gob-side entry retaining, and creates conditions for safe and efficient production of the working face.
Description
Technical Field
The invention belongs to the technical field of roadside packing bodies, and particularly relates to a method for rapidly penetrating a split anchor rod through a large-mining-height high-water filling material gob-side entry retaining.
Background
In the process of high-water filling material gob-side entry retaining construction, in order to increase the bearing capacity and the transverse deformation resistance of a filling body, a counter-pulling anchor rod needs to be constructed in the filling body. Specifically, in site operation, the counter-pull anchor rod penetrates into the filling bag to complete suspension of the filling bag, then a high-water filling material is poured into the filling bag, and after the high-water filling material is solidified, the counter-pull anchor rod applies pre-tightening force to the filling body through the trays and the nuts at the two ends, so that the bearing capacity and the transverse deformation resistance of the filling body are improved. Since the filling bag is flexible, when the counter anchor is inserted into the filling bag, the construction is generally performed in the order of from top to bottom and from inside to outside, as shown in fig. 2 to 3, and for convenience of explanation, counter anchor holes (prepared holes) in the filling bag are numbered as shown in fig. 1. The counter bolts are inserted into counter bolt holes (reserved holes) on the filling bag one by one from top to bottom and from inside to outside (a 1 → b1 → c1 → d 1; a2 → b2 → c2 → d 2; … …), and the counter bolts simultaneously penetrate through the meshes of the steel bars and are fixed on the steel bar net. According to the sequence from inside to outside, when the first row of counter-pull anchor rods (a 1, b1, c1 and d 1) are penetrated, and the second row of counter-pull anchor rods (a 2, b2, c2 and d2) are penetrated, counter-pull anchor rod holes need to be searched again due to the falling of the filling bag, so that the construction difficulty is increased, and the holes are easy to penetrate through in a wrong way (namely, one side of a roadway penetrates into 21 holes, and one side of a goaf penetrates into 22 holes or 31 holes). In addition, because the filling bag is flexible, the filling height is high, the counter-pull anchor rods are long, and the method of firstly penetrating the uppermost row of counter-pull anchor rods (a 1, a2, a3, a4 and a 5) is difficult to achieve.
In summary, the above construction method has the following disadvantages: 1) the filling height is within 2.5m, and the filling width is within 1.5 m; when the filling height exceeds 2.5m and the width exceeds 1.5m, the opposite-pulling anchor rod is difficult to penetrate into the filling bag by adopting the method. 2) Because of the high water filling material gob-side entry retaining construction can be operated in parallel with the production of the working face, if the time consumption of the anchor rod is too long, the gob-side entry retaining construction progress cannot follow the advancing speed of the working face, and the production of the working face is seriously restricted. Therefore, the method for rapidly penetrating the opposite-pulling anchor rod in the large-mining-height high-water filling material gob-side entry retaining has very important significance for reducing the labor intensity of workers, improving the construction efficiency of the gob-side entry retaining and ensuring the high-yield and high-efficiency production of a working face.
Disclosure of Invention
The invention aims to provide a method for rapidly penetrating a split anchor rod in a large-mining-height high-water filling material gob-side entry retaining, so that the construction time of the high-water filling material gob-side entry retaining is saved, and the labor intensity of people is reduced. In order to achieve the purpose, the invention adopts the following technical scheme:
a method for rapidly penetrating a split anchor rod by a large-mining-height high-water filling material along a gob-side entry retaining comprises the steps of adopting a filling bag, wherein the filling bag is provided with a gob-side entry retaining hole and a goaf-side retaining hole for the split anchor rod to penetrate through; the gob-side reserved hole is arranged corresponding to the gob-side reserved hole; the gob-side preformed holes comprise a first row of preformed holes to an Nth row of preformed holes which are sequentially arranged from top to bottom; the method comprises the following steps:
(1) respectively erecting protective film reinforcing meshes on the side of the gob-side roadway and the side of the goaf next to the upper filling body; the protective film reinforcing mesh and the reinforcing meshes on the two sides of the upper filling body are screwed up through iron wires; the single hydraulic prop is firmly tied on the outer side of the protective film reinforcing mesh to support the filling space;
(2) at a first working height H1, passing the same first counter anchor rod through the reserved hole at the 1 st row and the reserved hole at the goaf side corresponding to the reserved hole at the 1 st row; wherein the first working height H1 is less than the height H2 of the filling space;
(3) taking the whole body formed by the first pair of pulling anchor rods and the filling bag in the step (2) down from the protective film reinforcing mesh, and then displacing the first pair of pulling anchor rods into the meshes of the protective film reinforcing mesh at the height H2 of the filling space;
(4) the other counter-pulling anchor rods penetrate through the gob-side reserved hole and the gob-side reserved hole corresponding to the gob-side reserved hole; until all the gob-side preformed holes and gob-side preformed holes penetrate through opposite-pull anchor rods.
Preferably, step (4) is specifically:
(41) in the rows 2 to N, one preformed hole of each row of preformed holes close to the upper filling space forms a set to be perforated; sequentially threading opposite-pulling anchor rods in the order from top to bottom aiming at the set to be perforated, and simultaneously threading the opposite-pulling anchor rods through reserved holes on the goaf side corresponding to the set to be perforated;
(42) and (4) repeating the step (41) until all the gob-side preformed holes and the gob-side preformed holes penetrate through the opposite-pull anchor rods.
Preferably, all the prepared holes in each set to be perforated are located in the same column.
Preferably, the individual hydraulic prop is tightly attached to the protective membrane reinforcing mesh.
Preferably, in the step (2), the first working height is 1.8 m-2.2 m.
Preferably, in the step (2), the height of the filling space is 2.6m to 3.5 m.
Preferably, step (4) is specifically:
(41) penetrating the nth row of preformed holes and the preformed holes on the mining area side corresponding to the nth row of preformed holes with counter-pulling anchor rods; wherein N is more than 1 and less than or equal to N; n represents a positive integer;
(42) and (4) repeating the step (41) until all the gob-side preformed holes and the gob-side preformed holes penetrate through the opposite-pull anchor rods.
Preferably, step (3) is specifically:
(31) taking down the whole body formed by the counter-pulling anchor rods and the filling bag in the step (2) from the protective film steel bar mesh, and placing the first counter-pulling anchor rods in mesh holes of the protective film steel bar mesh at the second working height H3; wherein H1 < H3 < H2;
(32) and (3) taking the first pair of pulling anchor rods and the filling bag in the step (31) as a whole from the protective film reinforcing mesh, and placing the first pair of pulling anchor rods in the meshes of the protective film reinforcing mesh at the height H2 of the filling space.
Compared with the prior art, the invention has the advantages that: the method comprises the steps of firstly, penetrating a first pair of anchor rods (the uppermost row of anchor rods) into a first row of reserved holes, constructing at a preset height, constructing at a first working height H1, then gradually lifting the first pair of anchor rods to the height H2 of the filling space, hanging a filling bag on a top plate of the filling space through a binding belt at the moment, hanging and forming the filling bag, displaying all anchor rod holes (reserved holes) at the lower part of the first row of reserved holes in a perfect mode, creating conditions for efficient and rapid construction of the rest anchor rods, and finally penetrating the anchor rods (b 1 → c1 → d 1; b2 → c2 → d 2; … …) from top to bottom and from inside to outside. Therefore, the method is more efficient, rapid, safe and reliable, saves the construction time of high-water filling materials along the gob-side entry retaining, and creates conditions for safe and efficient production of the working face.
Drawings
FIG. 1 is a schematic view of a prior art fill bag;
fig. 2 is a schematic view of a first process of a gob-side entry retaining split anchor rod method in the prior art;
fig. 3 is a schematic diagram of a second process of a gob-side entry retaining split anchor rod method in the prior art;
fig. 4 is a flowchart of a method for rapidly penetrating a tension anchor rod along a gob-side entry retaining by using a high-mining-height high-water filling material according to an embodiment of the invention;
FIG. 5 is a schematic view of the process of step (1) in FIG. 4;
FIG. 6 is a schematic view of the process of step (2) in FIG. 4;
FIG. 7 is a schematic view of the process of step (3) in FIG. 4;
FIG. 8 is a schematic view of a first process step of step (4) in FIG. 4;
fig. 9 is a schematic view of a second process of step (4) in fig. 4.
The method comprises the following steps of 1-filling bag, 2-preformed hole, 3-ribbon, 4-pouring hole, 5-upper filling body, 6-protective film reinforcing mesh, 7-single hydraulic support and 8-first counter anchor rod.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying schematic drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the advantageous effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
In the embodiment, as shown in fig. 4, a method for rapidly penetrating a counter-pulling anchor rod along a gob-side entry retaining by a high-mining-height high-water filling material is adopted, the filling bag 1 shown in fig. 1 is adopted, the filling bag 1 is of a hollow regular hexahedron structure, counter-pulling anchor rod holes (preformed holes containing sleeves) are processed on the surface of the filling bag and used for penetrating the counter-pulling anchor rod before the filling of the high-water filling material, a ribbon 3 is used for suspending the filling bag 1 to facilitate molding, and a filling hole 44 is used for filling the high-water filling material slurry and exhausting through an insertion pipe. The filling bag 1 is provided with a gob-side preformed hole and a goaf-side preformed hole for a counter anchor rod to pass through; the gob-side reserved hole is arranged corresponding to the gob-side reserved hole; the gob-side preformed holes comprise a first row of preformed holes (a 1, a2, a3, a4, a 5) to an Nth row of preformed holes (d 1, d2, d3, d4, d 5) which are arranged from top to bottom in sequence.
The method comprises the following steps (1) - (7):
(1) next to the upper filling body 5, a protective film reinforcing mesh 6 is respectively erected on the gob side and the goaf side, and specifically, the protective film reinforcing mesh is arranged on both sides of the upper filling body 5, and the protective film reinforcing mesh is not detached. Therefore, the protective film reinforcing mesh and the reinforcing meshes on the two sides of the upper filling body are screwed up through iron wires; the single hydraulic prop 7 is firmly tied on the outer side of the protective film reinforcing mesh 6 to support the filling space; the individual hydraulic struts 7 are pressed against the protective membrane reinforcing mesh 6, see fig. 5. Wherein, the filling bag 1 is accommodated between the two lateral protective film reinforcing meshes 6. The protective film reinforcing mesh 6 on the side of the gob side is a first reinforcing mesh, and the protective film reinforcing mesh 6 on the side of the gob is a second reinforcing mesh. The filling space refers to a space which needs to be filled at this time.
(2) At a first working height H1, the same first pair of tie bolts 8 is passed through the reserved hole (a 1, a2, a3, a4, a 5) in row 1 and the reserved hole on the goaf side corresponding to the reserved hole in row 1, as shown in fig. 6; wherein the first working height H1 is less than the height H2 of the filling space. The first working height H1 is a height convenient for workers to work; the first working height is 1.8 m-2.2 m, such as 2 m; the height of the filling space is 2.6m to 3.5m, such as 3 m.
(3) And (3) removing the whole body consisting of the first pair of pull anchors 8 (the uppermost row of pull anchors) and the filling bag 1 in the step (2) from the mesh holes of the protective film mesh reinforcement at the first working height H1, and then penetrating the first pair of pull anchors 8 through the mesh holes of the protective film mesh reinforcement at the height H2 of the filling space, namely placing the first pair of pull anchors 8 in the mesh holes of the protective film mesh reinforcement at the height H2 of the filling space. During this process the first pair of pull anchor rods 8 is not removed from the filling bag 1, as shown in fig. 7.
In another embodiment other than this embodiment, in step (3), a plurality of working heights may be set between the height H2 of the filling space and the first working height H1, that is, the first pair of pull anchors 8 are gradually raised to the height H2 of the filling space. If the second working height H3 is provided between the height H2 of the present filling space and the first working height H1, the filling bag 1 will eventually reach the height H2 of the present filling space from the first working height H1, through the transition at the second working height H3. The method specifically comprises the following steps:
(31) the whole of the first pair of tension bolts 8 and the filling bag 1 in step (2) is removed from the holes of the protective film mesh reinforcement at the first working height H1, and then the first pair of tension bolts 8 are inserted into the holes of the protective film mesh reinforcement at the second working height H3, that is, the first pair of tension bolts 8 are placed at the second working height H3. The first pull anchor 8 is not removed from the inflation bag during this process.
(32) And (4) taking the whole body consisting of the first pair of pull-anchor rods 8 and the filling bag 1 in the step (31) from the meshes of the protective film reinforcing mesh positioned at the second working height H3, and placing the first pair of pull-anchor rods 8 at the height H2 of the filling space. Namely, the first pair of pulling anchor rods 8 pass through the holes of the protective film reinforcing mesh at the height H2 of the filling space. The first pair of pull anchor rods 8 is not removed from the filling bag 1 during this process.
(4) The other counter-pulling anchor rods penetrate through the gob-side reserved hole and the gob-side reserved hole corresponding to the gob-side reserved hole; until all the gob-side preformed holes and gob-side preformed holes penetrate through opposite-pull anchor rods. The filling bag 1 is then suspended by the tie 3 from the top plate of the space, i.e. the filling bag 1 is now inside the protective membrane mesh 6. Similarly, after all the split anchors are installed, the protective membrane reinforcing mesh 6 is not removed, and then the filling bag 1 is pumped with slurry to form the present filling body, i.e. the protective membrane reinforcing mesh 6 of the present filling body and the protective membrane reinforcing mesh 6 of the next filling body are also fastened by the iron wires.
The step (4) specifically comprises the following steps (41) to (42):
(41) in the rows 2 to N, one preformed hole 2 of each row of preformed holes close to the upper filling space forms a set to be perforated; and sequentially threading opposite-pulling anchor rods by adopting the sequence from top to bottom aiming at the set to be perforated, wherein the opposite-pulling anchor rods simultaneously penetrate through reserved holes on the goaf side corresponding to the set to be perforated. As shown in fig. 1, the set to be perforated includes (b 1, c1, d 1), (b2, c2, d2), (b 3, c3, d 3), (b 4, c4, d 4), (b5, c5, d 5). The state of the (b 1, c1, d 1) with the tie-bolt inserted therein is shown in fig. 8.
(42) And (4) repeating the step (41) until all the gob-side preformed holes and the gob-side preformed holes penetrate through the opposite-pull anchor rods. Namely, after the set to be perforated (b 1, c1, d 1) is threaded with the opposite pulling anchor rod, (b2, c2, d2) is a new set to be perforated, and the like. The partial process of passing the set of holes to be perforated (b2, c2, d2) through the split bolt is shown in fig. 9.
In other embodiments besides this embodiment, step (41) may also be: penetrating the nth row of preformed holes and the preformed holes on the mining area side corresponding to the nth row of preformed holes with counter-pulling anchor rods; wherein N is more than 1 and less than or equal to N, and N represents a positive integer; that is, except the first row of preformed holes, the other preformed holes are threaded with counter-pulling anchor rods according to the row sequence.
In the steps (2) and (4), the first counter-pull anchor rod 8 or the other counter-pull anchor rods are pre-penetrated through the meshes of the first reinforcing mesh before penetrating through the filling bag 1; after the counter-pull anchor rod passes through the filling bag 1, the counter-pull anchor rod passes through the mesh hole of the second reinforcing mesh.
In the present embodiment, all the reserved holes in each set to be punched are located in the same column, that is, the reserved holes along the side of the empty roadway form a rectangular array of holes.
In summary, in the present embodiment, first, the first pair of tie bolts 8 is inserted into the first row of prepared holes (a 1, a2, a3, a4, a 5), but not at a predetermined height, but at a first working height H1 of about 2m, and then the first pair of tie bolts 8 is gradually raised to a height H2 of the filling space, at this time, since the uppermost row of tie bolts is completely threaded, then the filling bag 1 is suspended on the ceiling of the filling space by the tie 3, and the filling bag 1 is suspended and formed, all tie bolt holes (prepared holes) at the lower part of the first row of prepared holes are well displayed, so as to provide for efficient and rapid construction of the remaining tie bolts, and finally, the tie bolts are inserted from inside to outside in the order from top to bottom (b 1 → c1 → d 1; b2 → c2 → d 2; … …). Therefore, the method is more efficient, rapid, safe and reliable, saves the construction time of high-water filling materials along the gob-side entry retaining, and creates conditions for safe and efficient production of the working face.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A method for rapidly penetrating a split anchor rod by a large-mining-height high-water filling material along a gob-side entry retaining comprises the steps of adopting a filling bag, wherein the filling bag is provided with a gob-side entry retaining hole and a goaf-side retaining hole for the split anchor rod to penetrate through; the gob-side reserved hole is arranged corresponding to the gob-side reserved hole; the gob-side preformed holes comprise a first row of preformed holes to an Nth row of preformed holes which are sequentially arranged from top to bottom; the method is characterized by comprising the following steps:
(1) respectively erecting protective film reinforcing meshes on the side of the gob-side roadway and the side of the goaf next to the upper filling body; the protective film reinforcing mesh and the reinforcing meshes on the two sides of the upper filling body are screwed up through iron wires; the single hydraulic prop is firmly tied on the outer side of the protective film reinforcing mesh to support the filling space;
(2) at a first working height H1, passing the same first counter anchor rod through the reserved hole at the 1 st row and the reserved hole at the goaf side corresponding to the reserved hole at the 1 st row; wherein the first working height H1 is less than the height H2 of the filling space;
(3) taking the whole body formed by the first pair of pulling anchor rods and the filling bag in the step (2) down from the protective film reinforcing mesh, and then displacing the first pair of pulling anchor rods into the meshes of the protective film reinforcing mesh at the height H2 of the filling space;
(4) the other counter-pulling anchor rods penetrate through the gob-side reserved hole and the gob-side reserved hole corresponding to the gob-side reserved hole; until all the gob-side preformed holes and gob-side preformed holes penetrate through opposite-pull anchor rods.
2. The method for rapidly penetrating the opposite-pulling anchor rod along the gob-side entry by the high-water filling material with large mining height according to claim 1, wherein the step (4) is specifically as follows:
(41) in the rows 2 to N, one preformed hole of each row of preformed holes close to the upper filling space forms a set to be perforated; sequentially threading opposite-pulling anchor rods in the order from top to bottom aiming at the set to be perforated, and simultaneously threading the opposite-pulling anchor rods through reserved holes on the goaf side corresponding to the set to be perforated;
(42) and (4) repeating the step (41) until all the gob-side preformed holes and the gob-side preformed holes penetrate through the opposite-pull anchor rods.
3. The method for rapidly penetrating the split bolt along the gob-side entry by the high water filling material for large mining height according to claim 2, wherein all the prepared holes in each set to be perforated are located in the same column.
4. The method for rapidly penetrating a split bolt along a gob-side entry by using a large mining height and high water filling material according to claim 1, wherein the single hydraulic prop is tightly attached to a protective film reinforcing mesh.
5. The method for rapidly penetrating the split bolt along the gob-side entry by the high water filling material with large mining height according to claim 1, wherein in the step (2), the first working height is 1.8 m-2.2 m.
6. The method for rapidly penetrating the opposite-pulling anchor rod along the gob-side entry by the high water filling material with large mining height according to claim 1, wherein in the step (2), the height of the filling space is 2.6-3.5 m.
7. The method for rapidly penetrating the opposite-pulling anchor rod along the gob-side entry by the high-water filling material with large mining height according to claim 1, wherein the step (4) is specifically as follows:
(41) penetrating the nth row of preformed holes and the preformed holes on the mining area side corresponding to the nth row of preformed holes with counter-pulling anchor rods; wherein N is more than 1 and less than or equal to N; n represents a positive integer;
(42) and (4) repeating the step (41) until all the gob-side preformed holes and the gob-side preformed holes penetrate through the opposite-pull anchor rods.
8. The method for rapidly penetrating the opposite-pulling anchor rod along the gob-side entry by the high-water filling material with large mining height according to claim 1, wherein the step (3) is specifically as follows:
(31) taking down the whole body formed by the counter-pulling anchor rods and the filling bag in the step (2) from the protective film steel bar mesh, and placing the first counter-pulling anchor rods in mesh holes of the protective film steel bar mesh at the second working height H3; wherein H1 < H3 < H2;
(32) and (3) taking the first pair of pulling anchor rods and the filling bag in the step (31) as a whole from the protective film reinforcing mesh, and placing the first pair of pulling anchor rods in the meshes of the protective film reinforcing mesh at the height H2 of the filling space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010182350.XA CN111622802B (en) | 2020-03-16 | 2020-03-16 | Method for rapidly penetrating and oppositely pulling anchor rod through large-mining-height high-water filling material gob-side entry retaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010182350.XA CN111622802B (en) | 2020-03-16 | 2020-03-16 | Method for rapidly penetrating and oppositely pulling anchor rod through large-mining-height high-water filling material gob-side entry retaining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111622802A true CN111622802A (en) | 2020-09-04 |
| CN111622802B CN111622802B (en) | 2022-03-15 |
Family
ID=72270890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010182350.XA Active CN111622802B (en) | 2020-03-16 | 2020-03-16 | Method for rapidly penetrating and oppositely pulling anchor rod through large-mining-height high-water filling material gob-side entry retaining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111622802B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975085A (en) * | 2010-09-09 | 2011-02-16 | 中国矿业大学 | Gob-side entry retaining reinforcing filling body structure and construction method thereof |
| CN103603688A (en) * | 2013-09-25 | 2014-02-26 | 安徽理工大学 | Gob-side entry three-dimensional reinforcement filled wall structure and filling method thereof |
| CN107780957A (en) * | 2017-10-17 | 2018-03-09 | 中国矿业大学 | A kind of Quick mechanical gob side entry retaining mounting system and application method |
| CN208294567U (en) * | 2018-05-15 | 2018-12-28 | 陕煤集团神木张家峁矿业有限公司 | A kind of fixation device for the soft mould pocket type mold pouring walling suitable for underground |
-
2020
- 2020-03-16 CN CN202010182350.XA patent/CN111622802B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975085A (en) * | 2010-09-09 | 2011-02-16 | 中国矿业大学 | Gob-side entry retaining reinforcing filling body structure and construction method thereof |
| CN103603688A (en) * | 2013-09-25 | 2014-02-26 | 安徽理工大学 | Gob-side entry three-dimensional reinforcement filled wall structure and filling method thereof |
| CN107780957A (en) * | 2017-10-17 | 2018-03-09 | 中国矿业大学 | A kind of Quick mechanical gob side entry retaining mounting system and application method |
| CN107780957B (en) * | 2017-10-17 | 2019-10-29 | 中国矿业大学 | A kind of Quick mechanical gob side entry retaining support system and application method |
| CN208294567U (en) * | 2018-05-15 | 2018-12-28 | 陕煤集团神木张家峁矿业有限公司 | A kind of fixation device for the soft mould pocket type mold pouring walling suitable for underground |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111622802B (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112727539B (en) | Construction method for filling false roof by using shrinkable mesh material | |
| CN104061001B (en) | Gob side entry retaining exploitation support process method | |
| CN108798723B (en) | Support-top-coal-containing ultrahigh-mining roadway support method applied to thick coal seam | |
| CN103670470A (en) | Full coal roadway safe and speedy drivage supporting method | |
| CN107387129B (en) | Rapid construction method for controlling extrusion type deformation of tunnel | |
| CN215108964U (en) | Temporary supporting structure of soft rock tunnel | |
| CN111622802B (en) | Method for rapidly penetrating and oppositely pulling anchor rod through large-mining-height high-water filling material gob-side entry retaining | |
| CN111827313A (en) | Treatment method for slip collapse of discrete high slope on surface layer of deep layer strong-dumping deformation body | |
| CN110107350A (en) | A kind of cylinder formula gob side entry retaining roadside packing template and its application method | |
| CN109630050B (en) | Novel working face recovery channel supporting process | |
| CN218346805U (en) | Small platform formwork system on side face of overhanging landscape platform | |
| CN108301850B (en) | Strong top-bottom-fixing two-side pressure relief supporting structure and method suitable for dynamic pressure roadway | |
| CN110159343B (en) | Step cylinder type gob-side entry retaining roadside filling template and use method thereof | |
| CN206646501U (en) | A kind of tension and compression dispersion-type prestressed anchorage cable | |
| CN110145361B (en) | Asymmetric cylindrical gob-side entry retaining roadside filling template and use method thereof | |
| CN207685879U (en) | A kind of lift stake reinforcing bearing platform construction platform | |
| CN212535753U (en) | High-risk area supporting system | |
| CN105156111A (en) | Supporting method for mining large high roadway type fill strips | |
| CN210239717U (en) | Strong anchor grouting supporting structure for controlling red shale tunnel | |
| CN217783491U (en) | Novel frame-type combination artificial pillar | |
| CN106703878A (en) | Novel concrete precast block self-locking solid wall | |
| CN114855620B (en) | Integral lifting and anchoring device for bridge steel pipe arch rib and construction method thereof | |
| CN112855211B (en) | Supporting and reinforcing device and method for unstable stope in mine | |
| CN215211139U (en) | Upper-expansion anti-overturning power transformation framework foundation | |
| CN213805361U (en) | Anchor rod and rock-socketed concrete combined gravity anchorage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |