CN110056390B - Disposal method of full tailings consolidation disposal system for underground abandoned roadway - Google Patents
Disposal method of full tailings consolidation disposal system for underground abandoned roadway Download PDFInfo
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- CN110056390B CN110056390B CN201910325964.6A CN201910325964A CN110056390B CN 110056390 B CN110056390 B CN 110056390B CN 201910325964 A CN201910325964 A CN 201910325964A CN 110056390 B CN110056390 B CN 110056390B
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- filling
- retaining wall
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- slurry
- roadway
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts
Abstract
The invention discloses a disposal system and a disposal method for full tailings consolidation of underground abandoned roadway, wherein the disposal system comprises: pipeline control system, ground paste isolated system, drainage system. The waste roadway is divided into a plurality of stages, a lower retaining wall is respectively constructed at proper positions of a first stage and a second stage, when filling is carried out, the second stage filling retaining wall is used as a first stage water-stop wall, finally, filling pipelines are laid, the prepared filling slurry reaches a filling area through a feeding pipe, slurry wastewater is discharged through a filter pipe, an upper retaining wall is constructed along with filling until the slurry is completely blocked, at the moment, the first stage filling is finished, pipeline threads are opened, the first stage pipelines are dismounted, and retreat filling is carried out step by step on the rest stages. The invention has the advantages that: the defects that the retaining wall is unstable and can not be completely filled in the traditional filling method are overcome, and the method has the advantages of economy, rapidness, continuity, safety, stability and high efficiency.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a disposal method of a full tailings consolidation disposal system of an underground abandoned roadway.
Background
The discharge amount of tailings in China is huge, and most of tailings are stacked in a surface tailing pond except a few tailings. According to statistics, the tailings pond accumulated on the ground of the metal mine in China reaches more than 40 hundred million tons, and is increased at the speed of 2.1 hundred million tons every year, so that the method not only occupies a large amount of land resources and causes environmental pollution, but also has certain potential safety hazard and great harm. In the actual mine production, the proportion of the abandoned roadway occupying the abandoned space is large, and the actual utilization rate is not high. If the tailings can be solidified and discharged in the abandoned roadway, the filling efficiency can be greatly improved, the overground space is saved, the economic benefit is improved, meanwhile, the ground surface settlement can be reduced, and the mine safety condition is improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a disposal method of a full tailings consolidation disposal system of an underground abandoned roadway, which can effectively solve the problems in the prior art.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
a disposal method of a full tailings consolidation disposal system of a downhole waste roadway, the full tailings consolidation disposal system of the downhole waste roadway comprises the following steps: a pipeline control system, a slurry isolation system, a drainage system and a waste roadway 4;
the waste roadway 4 is divided into a plurality of stages in the length direction;
the pipeline control system includes: a plurality of feed pipes 1, a fixed bracket 8 and an anchor rod 9.
The fixed support 8 is made of inverted triangular rigid metal materials and is processed according to the diameter of the feeding pipe 1, the feeding pipe 1 is embedded in the fixed support 8, and the fixed support 8 is fixed in the center of the top plate of the waste roadway 4 by an anchor rod 9;
the feed pipe 1 is used for transporting filling slurry, the two ends of the feed pipe are provided with pipeline threads 3, and the feed pipe 1 are detachably connected through the pipeline threads 3.
The slurry isolation system comprises a plurality of filling retaining walls 2, each filling retaining wall 2 consists of an upper filling retaining wall 14 and a lower filling retaining wall 12, the cross section of each filling retaining wall 2 is trapezoidal, and the construction position of each filling retaining wall 2 is the tail end of each stage of the abandoned roadway 4; the lower filling retaining wall 12 requires an upper filling retaining wall 14 to be constructed above the lower filling retaining wall 12 after the slurry level rises,
the drainage system comprises a water filter pipe 11 and water filter holes 15, wherein the water filter pipe 11 penetrates through the filling retaining wall 2, and one end of the water filter pipe is close to the bottom of the filling retaining wall 2 and used for discharging redundant slurry waste water 13 in water filling slurry 16; one end of the water filter is close to the top of the filling retaining wall 2 and is connected with a water filtering hole 15 for the slurry wastewater 13 to enter; the inside of the water filtering hole 15 is blocked by iron wires and 100-mesh linen to prevent slurry leakage and slurry leakage.
Firstly, dividing the length of a waste roadway into a plurality of stages according to the length of the waste roadway, arranging a filling retaining wall 2 at the tail part of each stage, constructing a lower layer filling retaining wall 12 at a proper position of the first stage, using the lower layer filling retaining wall 12 of the second stage as a water-stop wall of the first stage during filling, laying a filling pipeline, embedding a feeding pipe 1 at the inner side of a triangular fixing support 8, and fixing the support above the waste roadway 4 by using an anchor rod 9.
After the filling slurry 16 is prepared, the feed pipe 1 reaches a filling area, the slurry wastewater 13 is discharged to the next stage through the filter pipe 11, an upper filling retaining wall 14 is constructed as filling is carried out until the filling is completely blocked, at the moment, the first stage filling is finished, the pipeline thread 3 is opened, the feed pipe 1 in the first stage is dismounted, the above treatment method is gradually repeated for the rest stages, and retreat filling is carried out.
Furthermore, the filling retaining wall 2 is formed by stacking filling sand bags, the section is trapezoidal, the thickness of the bottom edge is 2m, the gradient is 70-75 degrees, and in order to ensure the tightness, the surface of the wall body is reinforced by 50mm by C20 concrete.
Further, the full tailings consolidation processing system of underground abandoned roadway further comprises an observation hole 10, wherein the observation hole 10 is positioned above the upper filling retaining wall 14, and the diameter of the observation hole is 500 mm.
Further, the height range of the lower layer filling retaining wall 12 is 150 cm-200 cm.
Furthermore, each section of the waste roadway 4 is 50-70 m in length;
compared with the prior art, the invention has the advantages that:
the pipeline control system, the slurry isolation system and the drainage system are closely matched with each other, so that the aim of filling the goaf waste roadway in an economical, rapid, continuous, stable, safe and efficient manner is fulfilled; fixing the filling slurry pipeline above the abandoned roadway by using an anchor rod by using a fixing support to stabilize the filling slurry pipeline; the filling retaining wall adopts a filling sand bag material, so that the economic cost is saved, the environmental protection is facilitated, and meanwhile, the filling retaining wall has certain strength; due to the existence of the pipeline thread, the filling slurry pipeline is convenient to mount and dismount in the retreating type filling process, so that the filling efficiency is improved; the mode of constructing the retaining wall layer by layer enables the filling to be carried out efficiently and continuously, is convenient for observing the whole filling process, and has higher reliability; the whole system can be applied to most of non-coal mines, including some mines with complex conditions, on one hand, each device has a stabilizing function, potential safety hazards cannot be caused, on the other hand, the system is simple in principle and convenient to operate, can realize real-time observation of the slurry flow of the filling material, and can realize quick and complete filling of abandoned roadways.
Drawings
FIG. 1 is a floor plan of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the present invention.
Description of the reference numerals
1-feeding pipe, 2-filling retaining wall, 3-pipeline thread, 4-abandoned roadway, 5-first stage, 6-second stage, 7-third stage, 8-fixed support, 9-anchor rod, 10-observation hole, 11-water filtering pipe, 12-lower layer filling retaining wall, 13-slurry waste water, 14-upper layer filling retaining wall, 15-water filtering hole and 16-filling slurry.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments.
A full tailings consolidation processing system of underground abandoned roadway, comprising: a pipeline control system, a slurry isolation system, a drainage system and a waste roadway 4;
the waste roadway 4 is divided into a plurality of stages in the length direction; each section is 50-70 m in length;
the pipeline control system includes: a plurality of feed pipes 1, a fixed bracket 8 and an anchor rod 9.
The fixed support 8 is made of inverted triangular rigid metal materials and is processed according to the diameter of the feeding pipe 1, the feeding pipe 1 is embedded in the fixed support 8, and the fixed support 8 is fixed in the center of the top plate of the waste roadway 4 by an anchor rod 9;
the feed pipe 1 is used for transporting filling slurry, the two ends of the feed pipe are provided with pipeline threads 3, and the feed pipe 1 are detachably connected through the pipeline threads 3.
The slurry isolation system comprises a plurality of filling retaining walls 2, each filling retaining wall 2 consists of an upper filling retaining wall 14 and a lower filling retaining wall 12, the cross section of each filling retaining wall 2 is trapezoidal, and the construction position of each filling retaining wall 2 is the tail end of each stage of the abandoned roadway 4; the lower filling retaining wall 12 requires an upper filling retaining wall 14 to be constructed above the lower filling retaining wall 12 after the slurry level rises,
the drainage system comprises a water filter pipe 11 and water filter holes 15, wherein the water filter pipe 11 penetrates through the filling retaining wall 2, and one end of the water filter pipe is close to the bottom of the filling retaining wall 2 and used for discharging redundant slurry waste water 13 in water filling slurry 16; one end of the water filter is close to the top of the filling retaining wall 2 and is connected with a water filtering hole 15 for the slurry wastewater 13 to enter; the inside of the water filtering hole 15 is blocked by iron wires and 100-mesh linen to prevent slurry leakage and slurry leakage.
The filling retaining wall 2 is formed by piling filling sand bags, the section is trapezoidal, the thickness of the bottom edge is 2m, the gradient is 70-75 degrees, and in order to ensure the sealing property, the surface of the wall body is reinforced by C20 concrete for 50 mm.
The observation hole 10 is located above the upper filling retaining wall 14 and has a diameter of 500 mm.
The height range of the lower layer filling retaining wall 12 is 150 cm-200 cm.
A full tailings consolidation processing method of underground abandoned roadway comprises the steps of dividing the abandoned roadway into a plurality of stages according to the length of the abandoned roadway, arranging a filling retaining wall 2 at the tail part of each stage, constructing a lower layer filling retaining wall 12 at a proper position of a first stage, using the lower layer filling retaining wall 12 as a water-stop wall of the first stage during filling, laying filling pipelines, inlaying a feeding pipe 1 at the inner side of a fixed support 8, and fixing the support above the abandoned roadway 4 by using an anchor rod 9.
After the filling slurry 16 is prepared, the feed pipe 1 reaches a filling area, the slurry wastewater 13 is discharged to the next stage through the filter pipe 11, an upper filling retaining wall 14 is constructed as filling is carried out until the filling is completely blocked, at the moment, the first stage filling is finished, the pipeline thread 3 is opened, the feed pipe 1 in the first stage is dismounted, the above treatment method is gradually repeated for the rest stages, and retreat filling is carried out.
It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner in which the invention is practiced, and it is to be understood that the scope of the invention is not limited to such specifically recited statements and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (5)
1. A disposal method of a full tailings consolidation disposal system utilizing underground abandoned roadways is characterized by comprising the following steps: the full tailings consolidation processing system of underground abandoned roadway comprises: a pipeline control system, a slurry isolation system, a drainage system and a waste roadway (4);
the waste roadway (4) is divided into a plurality of stages in the length direction;
the pipeline control system includes: a plurality of feeding pipes (1), a fixed support (8) and an anchor rod (9);
the fixed support (8) is made of an inverted triangular rigid metal material and is processed according to the diameter of the feeding pipe (1), the feeding pipe (1) is embedded in the fixed support (8), and the fixed support (8) is fixed at the central position of a top plate of the waste roadway (4) by an anchor rod (9);
the feeding pipe (1) is used for transporting filling slurry, pipeline threads (3) are arranged at two ends of the feeding pipe (1), and the feeding pipe (1) is detachably connected with the feeding pipe (1) through the pipeline threads (3);
the slurry isolation system comprises a plurality of filling retaining walls (2), each filling retaining wall (2) consists of an upper filling retaining wall (14) and a lower filling retaining wall (12), the cross section of each filling retaining wall (2) is trapezoidal, and the construction position of each filling retaining wall (2) is the tail end of each stage of the abandoned roadway (4); the lower filling retaining wall (12) needs to build an upper filling retaining wall (14) above the lower filling retaining wall (12) after the slurry water level rises,
the drainage system comprises a water filtering pipe (11) and a water filtering hole (15), wherein the water filtering pipe (11) penetrates through the filling retaining wall (2), and one end of the water filtering pipe is close to the bottom of the filling retaining wall (2) and used for discharging redundant slurry wastewater (13) in filling slurry (16); one end of the water filter is close to the top of the filling retaining wall (2) and is connected with a water filtering hole (15) for slurry wastewater (13) to enter; the inside of the water filtering hole (15) is blocked by an iron wire and a 100-mesh linen to prevent slurry leakage and slurry leakage;
the method comprises the following steps:
firstly, dividing the length of a waste roadway into a plurality of stages according to the length of the waste roadway, arranging a filling retaining wall (2) at the tail part of each stage, constructing a lower-layer filling retaining wall (12) at a proper position of the first stage, during filling, using the lower-layer filling retaining wall (12) of the second stage as a water-stop wall of the first stage, laying a filling pipeline, inlaying a feeding pipe (1) at the inner side of a triangular fixed support (8), and fixing the support above the waste roadway (4) by using an anchor rod (9);
after the filling slurry (16) is prepared, the filling area is reached through the feeding pipe (1), slurry wastewater (13) is discharged to the next stage through the strainer (11), an upper filling retaining wall (14) is constructed along with the filling until the slurry is completely blocked, at the moment, the first stage filling is finished, the pipeline thread (3) is opened, the feeding pipe (1) at the first stage is dismounted, and the treatment method is gradually repeated for the rest stages to carry out retreat filling.
2. The method of claim 1, wherein: the filling retaining wall (2) is formed by piling filling sand bags, the section is trapezoidal, the thickness of the bottom edge is 2m, the gradient is 70-75 degrees, and in order to ensure the sealing property, the surface of the wall body is reinforced by 50mm by C20 concrete.
3. The method of claim 2, wherein: the disposal system also comprises a viewing hole (10), wherein the viewing hole (10) is positioned above the upper filling retaining wall (14) and has the diameter of 500 mm.
4. The method of claim 3, wherein: the height range of the lower layer filling retaining wall (12) is 150 cm-200 cm.
5. The method of claim 4, wherein: the length of each stage of the waste roadway (4) is 50-70 m.
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| CN201910325964.6A CN110056390B (en) | 2019-04-23 | 2019-04-23 | Disposal method of full tailings consolidation disposal system for underground abandoned roadway |
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| CN201910325964.6A CN110056390B (en) | 2019-04-23 | 2019-04-23 | Disposal method of full tailings consolidation disposal system for underground abandoned roadway |
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| CN111706392B (en) * | 2020-05-19 | 2021-06-25 | 南昌大学 | Plugging and constructing method suitable for abandoned mine hole and mine tunnel |
| CN112228072B (en) * | 2020-09-29 | 2022-04-15 | 华南理工大学 | Underground supporting system for loess stud and reserved thin-strip ore pillar and construction method |
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| JPH06101400A (en) * | 1992-09-16 | 1994-04-12 | Asahi Denka Kogyo Kk | Injection type water stop method |
| CN102155259B (en) * | 2011-03-08 | 2014-05-07 | 北京科技大学 | Filling retaining wall constructed by using tunneling waste stones, and construction method of retaining wall |
| CN106194251A (en) * | 2016-08-31 | 2016-12-07 | 安徽开发矿业有限公司 | A kind of steel construction filling counterfort of reusable edible |
| CN106545361B (en) * | 2016-11-24 | 2019-01-11 | 贵州开磷集团股份有限公司 | A kind of mine down-hole high permeability filling counterfort and its construction method |
| CN106870001B (en) * | 2017-02-21 | 2019-05-21 | 长沙矿山研究院有限责任公司 | Tunnel is layered pocket type self-support filling counterfort construction method |
| CN108757024B (en) * | 2018-05-30 | 2019-09-13 | 贵州锦丰矿业有限公司 | A kind of efficient filling counterfort in mine and its construction method |
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