CN110593949B - Mine sluicing wind shielding structure - Google Patents
Mine sluicing wind shielding structure Download PDFInfo
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- CN110593949B CN110593949B CN201910982501.7A CN201910982501A CN110593949B CN 110593949 B CN110593949 B CN 110593949B CN 201910982501 A CN201910982501 A CN 201910982501A CN 110593949 B CN110593949 B CN 110593949B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000004062 sedimentation Methods 0.000 claims abstract description 18
- 239000011150 reinforced concrete Substances 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 12
- 238000005065 mining Methods 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- 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
- E21F16/00—Drainage
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
Abstract
The invention discloses a mine drainage wind shielding structure, which relates to the technical field of underground mining and comprises a drainage well and a drainage roadway, wherein the drainage roadway is connected with the bottom of the drainage well and a sedimentation tank, a front buttress half-wall and a rear buttress half-wall are arranged in the drainage roadway, the front buttress half-wall is positioned at the upper part of the drainage roadway, the rear buttress half-wall is positioned at the lower part of the drainage roadway, the top of the rear buttress half-wall is higher than the bottom of the front buttress half-wall, and a gate is arranged on the rear buttress half-wall. The air flow can be sealed, the water can be drained, and the effect of a sedimentation tank can be achieved. When the gate of the rear stack half-section wall is closed to store water to the position of the front stack half-section wall, the front stack half-section wall is always submerged in water to separate the drainage well from the sedimentation tank no matter the water inflow of the mine, so that the influence of water flow on the ventilation of the mine is favorably eliminated or reduced, the number of ventilation structures is favorably reduced, the ventilation effect of the mine is favorably improved, and the sediment sedimentation effect of the mine is favorably improved.
Description
Technical Field
The invention relates to the technical field of underground mining, in particular to a mine drainage wind shielding structure.
Background
In order to ensure the continuous and safe production of mines, a series of tunnels reaching the ore body need to be dug from the ground surface to the underground to form a system of lifting, transportation, ventilation, power supply, air supply, water supply, drainage, communication and the like, and the timely discharge of water gushing from the mines is an important content of flood control and flood fighting work of the mines and is particularly important for mines with large water gushing amount.
According to the mine topographic and geological conditions and the overall planning layout of development projects, the construction scheme of the drainage system comprises a first-stage drainage, a sectional drainage, a centralized drainage and a regional drainage besides the gravity drainage. Wherein, the first stage of water drainage is to introduce water gushing from the upper stage into the lower stage and directly drain the water gushing from the lower stage to the ground surface; the step of sectional drainage is that the water burst in the lower stage is firstly drained to the upper stage and then drained to the ground surface from the upper stage; the centralized drainage is to discharge water gushing from a mining area to the ground surface in a water pump room at one stage; when the range of a mining area is large and the number of the shafts is large, a zone drainage mode is generally adopted.
The water burst of underground mines mainly comes from the aspects of surface water, atmospheric precipitation, underground water, process water and the like, and the water burst of mines under different conditions and sources are greatly different. Influenced by terrain and ore body conditions, most of domestic mines adopt mechanical drainage, and a few of domestic mines adopt self-flowing drainage. The mine drainage system adopting mechanical drainage generally comprises a ditch, a drainage roadway, a sedimentation tank, a sump, a pump room, drainage equipment, a drainage pipeline and the like, and a mine with large rainfall and high permeation speed is provided with a special drainage roadway to ensure that atmospheric rainfall quickly reaches the sump and is discharged out of the mine.
Because of the existence of the drainage tunnel and the action of water flow, the air volume in the tunnel is very large, which has great influence on mine ventilation, so ventilation structures (such as air doors, air walls and the like) need to be arranged in the tunnel, and the arrangement of the ventilation structures in the tunnel has certain influence on the water flow. The existing method comprises the following steps: set up the ventilation structures in the contact tunnel outside the sedimentation tank, keep apart drainage tunnel and haulage roadway to prevent that the rivers effect from to the influence of mine ventilation, when the sedimentation tank needs to be cleared up, these ventilation structures are opened and are changed the balanced state of original system and then influence mine ventilation effect.
Disclosure of Invention
In order to solve the technical problems, the invention provides a mine drainage wind shielding structure which comprises a drainage well and a drainage roadway, wherein the drainage roadway is connected with the bottom of the drainage well and a sedimentation tank, a front buttress half-wall and a rear buttress half-wall are arranged in the drainage roadway, the front buttress half-wall is positioned at the upper part of the drainage roadway, the rear buttress half-wall is positioned at the lower part of the drainage roadway, the top of the rear buttress half-wall is higher than the bottom of the front buttress half-wall, and a gate is arranged on the rear buttress half-wall.
The technical effects are as follows: the mine drainage wind-break wall designed by the invention has three functions, can seal wind current and drain water, and can play a role of a sedimentation tank. When the gate of the rear stack half-section wall is closed to store water to the position of the front stack half-section wall, the front stack half-section wall is always submerged in water to separate the drainage well from the sedimentation tank no matter the water inflow of the mine, so that the influence of water flow on the ventilation of the mine is favorably eliminated or reduced, the number of ventilation structures is favorably reduced, the ventilation effect of the mine is favorably improved, and the sediment sedimentation effect of the mine is favorably improved.
The technical scheme of the invention is further defined as follows:
the mine drainage wind shielding structure is characterized in that the top of the rear buttress half-wall is higher than the bottom of the front buttress half-wall by 5-10 mm.
The mine drainage wind shielding structure is characterized in that the distance between a front buttress half wall and a rear buttress half wall is 3-100 m.
In the mine drainage wind shielding structure, the rear buttress half wall is also provided with an openable sand discharging port.
The mine drainage wind shielding structure is characterized in that the front buttress half wall and the rear buttress half wall are of reinforced concrete structures, reinforcing bars of the front buttress half wall and the rear buttress half wall are connected with anchor rods of a drainage roadway top plate, two sides and a bottom plate, the distance between the anchor rods is 500-1000 mm, and the thickness of reinforced concrete is 300-600 mm.
The mine drainage wind shielding structure is characterized in that a roadway support layer is arranged at the joint of the drainage well and the drainage roadway.
The invention has the beneficial effects that:
(1) according to the invention, the gate is arranged on the rear buttress half wall, the sand discharge port is reserved, the sand discharge port can be sealed when the water inflow amount of a mine is small, and when the sediment in a drainage roadway between the rear buttress half wall and a drainage well is deposited more, the gate of the rear buttress half wall can be opened to discharge water and carry out desilting operation in dry seasons;
(2) the front stack half wall and the rear stack half wall are far away as far as possible, so that sludge is precipitated and the influence of the sludge on the water flow section is prevented;
(3) the front buttress half-wall and the rear buttress half-wall adopt reinforced concrete structures so as to ensure that the front buttress half-wall and the rear buttress half-wall can be in a stable state under the action of water power;
(4) according to the invention, the lower edge of the front stack half-section wall is 5-10 mm lower than the upper edge of the rear stack half-section wall, so that the lower edge of the front stack half-section wall is submerged when the rear stack half-section wall stores water, and the effect of stopping wind flow is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein: 1. a front stack of half walls; 2. a rear half wall; 3. a sand discharge port; 4. a gate; 5. an anchor rod; 6. a roadway support layer; 7. a drainage well; 8. and (5) draining the water tunnel.
Detailed Description
The mine drainage wind-shielding structure provided by the embodiment is structurally shown in fig. 1 and comprises a drainage well 7 and a drainage roadway 8, wherein the drainage roadway 8 is connected with the bottom of the drainage well 7 and a sedimentation tank, and a roadway support layer 6 is arranged at the joint of the drainage well 7 and the drainage roadway 8. The water drainage roadway 8 is internally provided with a front buttress half wall 1 and a rear buttress half wall 2, the distance between the front buttress half wall 1 and the rear buttress half wall 2 is 3-100 m (when the field condition allows, the distance between the two buttress half walls is a little far away as possible, so that sludge precipitation is facilitated and the influence of sludge deposition on the flowing water section is prevented), reinforced concrete structures are adopted, reinforcing bars are connected with anchor rods 5, the distance between the anchor rods 5 is 500-1000 mm, and the thickness of the reinforced concrete is 300-600 mm. The cross section area of a drainage roadway 8 below the front buttress half-section wall 1 and the requirement of the maximum water inflow of a mine are met by the rear buttress half-section wall 2. The front buttress half wall 1 is located the upper portion of sluicing tunnel 8, and back buttress half wall 2 is located the lower part of sluicing tunnel 8, and the top of back buttress half wall 2 is higher than the bottom of front buttress half wall 1 5~10 mm. The rear half wall 2 is provided with a gate 4 and a sand discharge port 3 which can be opened and closed.
The specific application is as follows: a certain iron mine adopts an exploitation mode of combining a vertical shaft with a slope ramp, a mining method is a sill pillar-free sublevel caving method, four stages of 0m, 120m, 240m and 360m are set, underground water burst of the mine adopts a one-section drainage mode, the water burst of the upper part of the mine in a horizontal transportation mode in three stages of 0m, 120m and 240m is discharged downwards in the lower part of 360m through a drainage well 7, and enters a sedimentation tank and a water sump through a drainage roadway 8 in the lower part of 360m and is directly discharged to the ground surface through a water pump in the stage of 360 m. Along with 0m, -120 m and-240 m of water gushing from the drainage well 7, a large air current is formed in the drainage well 7 and the-360 m drainage roadway 8, the air quantity distribution of a mine ventilation system is seriously influenced, the air current of the system is disordered, and the original air inlet roadway is changed into an air return roadway. In order to avoid the influence of water flow on a mine ventilation system, the current practice is as follows: in order to keep the smoothness between a-360 m drainage roadway 8 and a sedimentation tank and prevent a large amount of drainage of a drainage well 7 from influencing mine ventilation, two air doors are arranged in a communication roadway outside the-360 m drainage roadway 8 so as to be beneficial to personnel to go in and out of the sedimentation tank and a sump for inspection and cleaning, the air doors are in a normally closed state, and due to the fact that a water ditch exists in the communication roadway, air flow can also enter between the two air doors after the air doors are installed, and therefore the air doors are still difficult to open.
According to the invention, a front stack of half-wall 1 with the thickness of 300-600 mm is poured on the upper part of a drainage roadway 8 at a position which is-360 m away from a drainage well 7 and is about 10-20 m away from the drainage well 7 in an underground mine, a rear stack of half-wall 2 with the thickness of 300-600 mm is poured on the lower part of the drainage roadway 8 along the downstream position of the water flow direction, both stacks of half-wall adopt reinforced concrete (the sectional area of the roadway on the lower part of the front stack of half-wall 1 and the upper part of the rear stack of half-wall 2 meets the requirement of the maximum water inflow of a mine), reinforcing bars are connected with anchor rods 5 of a roadway top plate, two sides and a bottom plate, the distance between the anchor rods 5 is 500-1000 mm, so as to ensure that the roadway is in a stable state under the hydraulic action, the front stack of half-wall 1 adjacent to the drainage well 7 is submerged in water, thereby separating the drainage well 7 from the rear part of the front stack of half-wall 1 to play a role of wind, the water flow discharged from the sluice well 7 can not bring out wind flow to influence mine ventilation, the gate 4 is installed on the rear buttress half wall 2 far away from the sluice well 7, the sand discharge port 3 is reserved, the functions of draining, precipitating and discharging sand are realized after the gate 4 is closed to store water, and when the sediment deposition amount in the drainage roadway 8 is large, the gate 4 of the rear buttress half wall 2 far away from the sluice well 7 can be opened to discharge water for cleaning in a dry season.
The mine sluicing wind-break wall has three functions, can seal the wind current, can sluicing, can also play the sedimentation tank effect, when the gate 4 of back buttress half wall 2 closes the retaining to the position of front buttress half wall 1, no matter the mine gushes out the water volume size, front buttress half wall 1 submerges all the time in aqueous and separates sluicing well 7 and sedimentation tank, be favorable to eliminating or reducing the influence of rivers to the mine ventilation, be favorable to reducing the quantity of ventilation structures, improve the mine ventilation effect, be favorable to improving the sediment effect of mine.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a mine sluicing structure of keeping out wind, includes sluicing well (7), sluicing tunnel (8) are connected sluicing well (7) bottom and sedimentation tank, its characterized in that: be equipped with front buttress half wall (1) and back buttress half wall (2) in sluicing tunnel (8), front buttress half wall (1) is located the upper portion in sluicing tunnel (8), back buttress half wall (2) are located the lower part in sluicing tunnel (8), the top of back buttress half wall (2) is higher than the bottom of front buttress half wall (1), be equipped with gate (4) on back buttress half wall (2).
2. The mine drainage wind shielding structure according to claim 1, wherein: the top of the rear stack half wall (2) is 5-10 mm higher than the bottom of the front stack half wall (1).
3. The mine drainage wind shielding structure according to claim 1, wherein: the distance between the front stack half-section wall (1) and the rear stack half-section wall (2) is 3-100 m.
4. The mine drainage wind shielding structure according to claim 1, wherein: the rear pile half wall (2) is also provided with an openable sand discharge port (3).
5. The mine drainage wind shielding structure according to claim 1, wherein: the front buttress half-wall (1) and the rear buttress half-wall (2) are both of reinforced concrete structures, reinforcing bars of the front buttress half-wall (1) and the rear buttress half-wall (2) are connected with anchor rods (5) of a top plate, two sides and a bottom plate of a water drainage roadway (8), the distance between the anchor rods (5) is 500-1000 mm, and the thickness of the reinforced concrete is 300-600 mm.
6. The mine drainage wind shielding structure according to claim 1, wherein: and a roadway supporting layer (6) is arranged at the joint of the drainage well (7) and the drainage roadway (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982501.7A CN110593949B (en) | 2019-10-16 | 2019-10-16 | Mine sluicing wind shielding structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982501.7A CN110593949B (en) | 2019-10-16 | 2019-10-16 | Mine sluicing wind shielding structure |
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| CN110593949A CN110593949A (en) | 2019-12-20 |
| CN110593949B true CN110593949B (en) | 2021-06-29 |
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| CN111396109B (en) * | 2020-03-13 | 2021-12-07 | 海南矿业股份有限公司 | Stope ventilation and drainage roadway structure |
| CN111322111A (en) * | 2020-03-17 | 2020-06-23 | 海南矿业股份有限公司 | Mine gushing cement sand sedimentation structure |
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| CN201025059Y (en) * | 2007-04-05 | 2008-02-20 | 永城煤电集团有限责任公司 | Under-well wind-blocking over flow device for mine coal |
| CN202047865U (en) * | 2011-04-21 | 2011-11-23 | 王国伟 | Simple U-shaped enclosed water guide apparatus used in coal mine tunnel |
| CN204253089U (en) * | 2014-11-06 | 2015-04-08 | 陕西彬长大佛寺矿业有限公司 | A kind of air door ditch verge board |
| CN206190317U (en) * | 2016-10-26 | 2017-05-24 | 淮北矿业股份有限公司 | Prevent wind return flow device |
| CN208858404U (en) * | 2018-10-09 | 2019-05-14 | 上海大屯能源股份有限公司江苏分公司 | A kind of mine sealing wall Anti-air-leakage is turned one's coat device |
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