CN102425421B - Novel water control method suitable for mine shafts - Google Patents
Novel water control method suitable for mine shafts Download PDFInfo
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- CN102425421B CN102425421B CN201110350072.5A CN201110350072A CN102425421B CN 102425421 B CN102425421 B CN 102425421B CN 201110350072 A CN201110350072 A CN 201110350072A CN 102425421 B CN102425421 B CN 102425421B
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Abstract
The invention relates to a novel water control method suitable for mine shafts, which is characterized by firstly adopting grouting for water plugging at a water-bearing layer at the upper part of the shaft; arranging a wall seat at the boundary of the water-bearing layer and a water-resisting layer and arranging a bypass for water interception after the wall on the upper surface of the wall seat; arranging a dewatering orifice in the bypass and arranging a water guide pipe in the orifice, wherein the wall seat is wider than the bypass and the wide part of the wall seat is upwarped for water blocking; arranging a water collecting ring in the shaft at the upper part of an access road and draining water collected by the water collecting ring into the bypass after the wall, wherein a baseplate of the access road is 200-300mm higher than the bypass; and pre-burying a drainage pipe and enabling gushing water collected at the upper part of the bypass to self-flow into a water sump and be further drained to the ground through a drainage device. By adopting the novel water control method, the construction conditions of the mine shaft can be improved, the construction quality can be improved and the progress can be accelerated; furthermore, water damages can be effectively prevented during the production period of a mine, the safety of the mine shaft is protected, the drainage cost is reduced and the service life of the mine shaft is prolonged.
Description
Technical field
The present invention relates to a kind of anti-method of harnessing the river of mine, particularly a kind of anti-method of harnessing the river that is applicable to vertical shaft for mine.
Background technology
At present, the measure of China's mine water management mainly contains the technical measures such as pre grouting from the surface, curtain-grouting, work plane filling and injecting slurry, freezing construction.These measures are mainly used in construction period To Construction of Silo process, and after the anti-method of prevent floods by water control more than adopting, to accelerating mine construction, improving workmanship has important meaning; After but To Construction of Silo completes, in manufacturing process, occur leaking, affect pit shaft safety, shorten mine service-life; In addition, a large amount of infiltration enters underworkings along outside in the borehole wall or stope increases draining difficulty greatly, particularly the exploitation in salt ease of solubility mineral deposit is formed to potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, propose a kind of reasonable in design, there is waterproof, intercept water, the function of draining, effectively prevent the anti-method of harnessing the river that is applicable to vertical shaft for mine of the harm of pit shaft water burst.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of anti-method of harnessing the river that is applicable to vertical shaft for mine, is characterized in:
(1) first in upper wellbore aquifer, adopt grouting for water blocking;
(2) in aquifer and water barrier intersection, establish wall seat, intercept water with detouring after establishing wall above wall seat, detour, wall seat and shaft construction become an entirety; The interior dewatering orifice that arranges of detouring, establishes aqueduct in hole; Wall seat is wider than detouring, and the part perk of wide place forms dash; The base plate gradient 1～3% that detours, minimum point is located at the channel position connecting in pit shaft, and adopts inorganic water-proof coating waterproof;
(3) in the pit shaft of connecting taxiway top, establish colector ring, in the water that colector ring is collected is discharged to and detours after wall;
(4) the connecting taxiway base plate ratio high 200～300mm that detours, and pre-buried gutter, the top water burst collecting detouring flows automatically to sump and is discharged to ground by drainage plant.
Of the present inventionly be applicable to the anti-of vertical shaft for mine and harness the river in method and technology scheme, preferred technical scheme or technical characterictic are:
1,, in step (1), when To Construction of Silo, the rock stratum situation of passing according to vertical shaft is carried out grouting for water blocking to aquifer; During grouting for water blocking, first utilize cement paste, or cement and water glass biliquid slurry, or cement, water glass and clay material carry out filling wall-rock crack, shutoff EXIT POINT, isolation water source; Cementing reinforcing mine country rock simultaneously, increases wellbore stability.
2, in step (2), stable water barrier is dropped on described wall seat basis, and controls the degree of depth that embeds water barrier, makes it not penetrate water barrier; The reserved connecting taxiway of the borehole wall make to detour with pit shaft in UNICOM; Wall seat, the borehole wall and the supporting of detouring form entirety, and wall seat is as the base plate detouring, and the borehole wall is as the interior survey wall detouring; The wall seat width ratio wide 400-600mm that detours, and in outside perk, form dash and make to detour in the infiltration of outer wall infiltrates by the constuction joint of the exterior wall that detours and detour;
Described detouring adopts shape steel bracket and steel concrete combined supporting, every 0.4-0.6m that detours to establish in a steel arch frame and the channel-section steel insertion borehole wall, detour arrangement of reinforcement and the welding of borehole wall arrangement of reinforcement; The channel-section steel model of machined steel bow member and the arrangement of reinforcement parameter that detours are determined according to concrete pressure from surrounding rock situation; The concrete segmentation of detouring is built, and top and side wall constuction joint are not taked waterproof measure, so that outside trickle infiltrates, detours; The interior survey constuction joint of base plate and dash of detouring adopts sealing piece or waterstop waterproof and is coated with the inorganic water-proof coating that one deck 2-3mm is thick, prevents that the water burst collecting in detouring from continuing infiltration downwards.
3,, in step (2), around the dewatering orifice in detouring is evenly arranged in and detours, hole depth is 1.5～2.0m; According to actual water burst situation, be arranged as some rows, often arrange and put 2-4 weep hole; In dewatering orifice, put aqueduct, aqueduct adopts the processing of diameter 45-55mm aluminium-plastic pipe, and pipe is around opened
worry water hole, pitch of holes 90-110mm, two-layer geotextiles is wrapped up in outside; The water percolating capacity periodic monitoring of aqueduct, suitably increases according to the large I of water percolating capacity the aqueduct quantity around that detours, and infiltration continues to take slip casting measure to strengthen water blockoff when larger containing quantity of sand and mud.
4, in step (3), the equilateral polygon that described colector ring is become by channel-section steel welding processing, in the colector ring part embedding borehole wall, the outstanding borehole wall of a part is received in the borehole wall and is surveyed and seep water; The gap of colector ring and the borehole wall adopts cement mortar grouting real, and below colector ring, establishes in aqueduct introduces the infiltration of collection to detour.
5,, in step (4), the borehole wall inner side of the collection of detouring and the water burst in outside are flow automatically and are discharged to the sump of mine drainage system by gutter, finally by water pump, are discharged to ground; Reserved connecting taxiway adopts shape steel bracket and shaft lining to form entirety, protection pit shaft safety.
6, the present invention's anti-method of prevent floods by water control of detouring can be used separately by a mine, also can many vertical shaft use simultaneously and be communicated with and in connecting taxiway, establish mechanical drainage plant by connecting taxiway.The water burst that many mines detour pools together and is directly discharged to ground by the drainage plant in connecting taxiway.
The large mine of the more complicated water yield of hydrogeology is adopted after the inventive method construction, not only can improve mine construction condition, improve construction quality and accelerate progress; And produce and can effectively prevent water damage period in mine, protection mine safety, reduces draining cost, extends mine service-life.This anti-measures engineering of harnessing the river is specially adapted to the mine of the easy molten deposit mining of salt, effectively solves the water damage problem in mine production.
Accompanying drawing explanation
Fig. 1 is the plan view detouring in the inventive method;
Fig. 2 is that the inventive method is implemented sectional drawing.
The specific embodiment
Contrast accompanying drawing below, further describe concrete implementer's case of the present invention.The cited specific embodiment of the present invention just describes preferred technique embodiment of the present invention, and be not be confined to cited.
(1) first in upper wellbore aquifer, adopt grouting for water blocking;
(2) in aquifer and water barrier intersection, establish wall seat 6, wall seat 6 intercepts water with detouring 1 after establishing wall above, detours 1, wall seat 6 and shaft construction become an entirety; The 1 interior dewatering orifice that arranges of detouring, establishes aqueduct 4 in hole; Wall seat 6 is 1 wider than detouring, and the part perk of wide place forms dash 5; The 1 base plate gradient 1～3% that detours, minimum point is located at the channel position connecting in pit shaft, and adopts inorganic water-proof coating waterproof;
(3) in connecting taxiway 2 top pit shafts, establish colector ring 7, the water that colector ring 7 is collected is discharged to and detours after wall in 1;
(4) the connecting taxiway 2 base plate ratios 1 high 200～300mm that detours, and pre-buried gutter 3, flows automatically to sump by the 1 top water burst collecting that detours and is discharged to ground by drainage plant.
Embodiment 3, in the step (2) of the anti-method of harnessing the river that is applicable to vertical shaft for mine described in embodiment 1: stable water barrier is dropped on described wall seat 6 bases, and controls the degree of depth that embeds water barrier, makes it not penetrate water barrier; The reserved connecting taxiway 2 of the borehole wall make to detour 1 with pit shaft in UNICOM; Wall seat 6, the borehole wall and 1 supporting of detouring form entirety, and wall seat 6 is as detouring 1 base plate, and the borehole wall is as detouring 1 interior survey wall; The wall seat 6 width ratios 1 wide 400-600mm that detours, and in outside perk, form dash 5 make the to detour infiltration of 1 outer wall and by the constuction joint of 1 exterior wall that detours, infiltrate and detour in 1;
Described detour 1 employing shape steel bracket and steel concrete combined supporting, the 1 every 0.4-0.6m that detours establishes a steel arch frame and channel-section steel inserts in the borehole wall, detour 1 arrangement of reinforcement and the welding of borehole wall arrangement of reinforcement; The channel-section steel model of machined steel bow member and the arrangement of reinforcement parameter that detours are determined according to concrete pressure from surrounding rock situation; 1 the concrete segmentation of detouring is built, and top and side wall constuction joint are not taked waterproof measure, so that outside trickle infiltrates, detours 1; The interior survey constuction joint of 1 base plate and dash of detouring adopts sealing piece or waterstop waterproof and is coated with the inorganic water-proof coating that one deck 2-3mm is thick, and the water burst collecting in 1 that prevents from detouring continues infiltration downwards.
Embodiment 4, in the step (2) of the anti-method of harnessing the river that is applicable to vertical shaft for mine described in embodiment 1: the dewatering orifice of detouring in 1 is evenly arranged in detours around 1, and hole depth is 1.5～2.0m; According to actual water burst situation, be arranged as some rows, often arrange and put 2-4 weep hole; In dewatering orifice, put aqueduct 4, aqueduct 4 adopts the processing of diameter 45-55mm aluminium-plastic pipe, and pipe is around opened
worry water hole, pitch of holes 90-110mm, two-layer geotextiles is wrapped up in outside; The water percolating capacity periodic monitoring of aqueduct 4, suitably increases according to the large I of water percolating capacity 1 aqueduct 4 quantity around that detour, and infiltration continues to take slip casting measure to strengthen water blockoff when larger containing quantity of sand and mud.
Embodiment 5, in the step (3) of the anti-method of harnessing the river that is applicable to vertical shaft for mine described in embodiment 1: the equilateral polygon that described colector ring 7 is become by channel-section steel welding processing, in colector ring 7 part embedding boreholes wall, the outstanding borehole wall of a part is received in the borehole wall and is surveyed and seep water; Colector ring 7 adopts cement mortar grouting real with the gap of the borehole wall, and colector ring 7 below, establishes aqueduct the infiltration introducing of collection is detoured in 1.
Embodiment 6, in the step (4) of the anti-method of harnessing the river that is applicable to vertical shaft for mine described in embodiment 1: the borehole wall inner side of 1 collection of detouring and the water burst in outside are flow automatically and are discharged to the sump of mine drainage system by gutter 3, are finally discharged to ground by water pump; Reserved connecting taxiway adopts shape steel bracket and shaft lining to form entirety.
Certain carnallite sylvite ore is positioned at Vientiane plain kalium-magnesium deposit district, the 650000 t/a carnallite exploitations of mining design scale, design developing mode is vertical shaft, wherein main shaft construction through ore bed from upper and go into: the Q topsoil fourth season, silty, siltstone, gypsic horizon, containing shale halite layer, halite layer, carnallite layer (ore bed).
According to the engineering geology in this ore deposit and hydrogeological situation analysis; gypsic horizon is water barrier; topsoil, silty and siltstone are aquifer; because carnallite ore bed and rock salt top board have ease of solubility; in order to protect the steadiness of ore body and top board to prevent that pit shaft infiltration from entering stope mine is produced and damaged, design adopts this anti-method of prevent floods by water control.
First more than gypsic horizon, adopt Technique of Block up Water Grouting, then at gypsic horizon and flour sand rock stratum intersection, establish wall seat 6 and detour 1, and in 1m place pit shaft, establish colector ring 7 on 1 detouring.Colector ring 7 adopts 12 22# channel-section steels to be welded into equilateral 12 limit shapes, and channel-section steel is partially submerged into the borehole wall.
The mode of 1 employing short driving and short lining of detouring is constructed, steel bar concrete and shape steel bracket combined supporting.Steel bracket adopts 10# channel-section steel to process, and the main muscle of reinforcing bar adopts diameter 16mm screw-thread steel, and contact muscle adopts the Q235 steel of diameter 8mm, and steelframe connects employing welding manner; Concrete strength C30, cement adopts corrosion-resistant cement for construction in sea.Detouring, borehole wall 300mm must be goed deep in the shape steel bracket of 1 supporting and basis and will detour 1 arrangement of reinforcement and the welding of borehole wall arrangement of reinforcement, and make to detour 1 supporting and the borehole wall form entirety.The 1 wide 1.2m that detours, lining thickness 300mm, the wide 1～1.9m of wall seat 6.Detour in 1 and be evenly distributed 8 row's aqueducts 4, every row three follows, and length is 2000mm; Aqueduct 4 adopts the processing of diameter 50mm aluminium-plastic pipe, and pipe is around opened
worry water hole, pitch of holes 100mm, two-layer geotextiles is wrapped up in outside.The water percolating capacity periodic monitoring of aqueduct 4, suitably increases according to the large I of water percolating capacity the aqueduct quantity around that detours, and takes slip casting measure when infiltration is larger containing quantity of sand and mud.Detour and 1 establish 1% gradient, bottom and abutment wall carry out percolation-proof processing, and coating water-proof layer thickness is not less than 2mm.Infiltration is pooled to detours in 1 by flow automatically to-100m of the steel pipe sump of the passage bottom of detouring.
Claims (5)
1. the anti-method of harnessing the river that is applicable to vertical shaft for mine, is characterized in that:
(1) first in upper wellbore aquifer, adopt grouting for water blocking;
(2) in aquifer and water barrier intersection, establish wall seat, intercept water with detouring after establishing wall above wall seat, detour, wall seat and shaft construction become an entirety; The interior dewatering orifice that arranges of detouring, establishes aqueduct in hole; Wall seat is wider than detouring, and the part perk of wide place forms dash; The base plate gradient 1～3% that detours, minimum point is located at the channel position connecting in pit shaft, and adopts inorganic water-proof coating waterproof; Around dewatering orifice in detouring is evenly arranged in and detours, hole depth is 1.5～2.0m; According to actual water burst situation, arrange that dewatering orifice is some rows, often arrange and put 2-4 weep hole; In dewatering orifice, put aqueduct, aqueduct adopts the processing of diameter 45-55mm aluminium-plastic pipe, and pipe is opened the treatment hole of φ 8-10mm around, pitch of holes 90-110mm, and two-layer geotextiles is wrapped up in outside; The water percolating capacity periodic monitoring of aqueduct, suitably increases according to the large I of water percolating capacity the aqueduct quantity around that detours, and infiltration continues to take slip casting measure to strengthen water blockoff when larger containing quantity of sand and mud;
(3) in the pit shaft of connecting taxiway top, establish colector ring, in the water that colector ring is collected is discharged to and detours after wall;
(4) the connecting taxiway base plate ratio high 200～300mm that detours, and pre-buried gutter, the top water burst collecting detouring flows automatically to sump and is discharged to ground by drainage plant.
2. the anti-method of harnessing the river that is applicable to vertical shaft for mine according to claim 1, is characterized in that: in step (1), when To Construction of Silo, the rock stratum situation of passing according to vertical shaft is carried out grouting for water blocking to aquifer; During grouting for water blocking, first utilize cement paste, or cement and water glass biliquid slurry, or cement, water glass and clay material carry out filling wall-rock crack, shutoff EXIT POINT, isolation water source; Cementing reinforcing mine country rock simultaneously, increases wellbore stability.
3. the anti-method of harnessing the river that is applicable to vertical shaft for mine according to claim 1, is characterized in that: in step (2), stable water barrier is dropped on described wall seat basis, and controls the degree of depth that embeds water barrier, makes it not penetrate water barrier; The reserved connecting taxiway of the borehole wall make to detour with pit shaft in UNICOM; Wall seat, the borehole wall and the supporting of detouring form entirety, and wall seat is as the base plate detouring, and the borehole wall is as the inside wall detouring; The wall seat width ratio wide 400-600mm that detours, and in outside perk, form dash and make to detour in the infiltration of outer wall infiltrates by the constuction joint of the exterior wall that detours and detour;
Described detouring adopts shape steel bracket and steel concrete combined supporting, every 0.4-0.6m that detours to establish in a steel arch frame and the channel-section steel insertion borehole wall, detour arrangement of reinforcement and the welding of borehole wall arrangement of reinforcement; The channel-section steel model of machined steel bow member and the arrangement of reinforcement parameter that detours are determined according to concrete pressure from surrounding rock situation; The concrete segmentation of detouring is built, and top and side wall constuction joint are not taked waterproof measure, so that outside trickle infiltrates, detours; The inner side constuction joint of base plate and dash of detouring adopts sealing piece or waterstop waterproof and is coated with the inorganic water-proof coating that one deck 2-3mm is thick, prevents that the water burst collecting in detouring from continuing infiltration downwards.
4. the anti-method of harnessing the river that is applicable to vertical shaft for mine according to claim 1, it is characterized in that: in step (3), described colector ring is the equilateral polygon being become by channel-section steel welding processing, and a colector ring part embeds in the borehole wall, and the outstanding borehole wall of a part is received lateral seepage in the borehole wall; The gap of colector ring and the borehole wall adopts cement mortar grouting real, and below colector ring, establishes in aqueduct introduces the infiltration of collection to detour.
5. the anti-method of harnessing the river that is applicable to vertical shaft for mine according to claim 1, it is characterized in that: in step (4), the detour borehole wall inner side of collecting and the water burst in outside flow automatically and is discharged to the sump of mine drainage system by gutter, finally by water pump, is discharged to ground; Reserved connecting taxiway adopts shape steel bracket and shaft lining to form entirety.
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| CN102425421B true CN102425421B (en) | 2014-04-16 |
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| CN103696783B (en) * | 2012-11-19 | 2016-07-13 | 云南省化工研究院 | A kind of method of soluble solids sylvite ore mining tunnel protective treatment |
| CN103061349A (en) * | 2013-01-28 | 2013-04-24 | 浙江华东建设工程有限公司 | Processing method for foundation pit piping |
| CN103696775B (en) * | 2013-12-20 | 2016-02-24 | 中煤第五建设有限公司 | The descending slip casting method of the high many group aquifer segmentations of large section |
| CN103898873B (en) * | 2014-03-25 | 2015-12-30 | 安徽水安建设集团股份有限公司 | To Construction of Silo seam infiltration leak-blocking construction method under high water head |
| CN104265363A (en) * | 2014-09-24 | 2015-01-07 | 四川省华蓥山煤业股份有限公司绿水洞煤矿 | Underground roadway gushing point dewatering device |
| CN104533467B (en) * | 2014-12-18 | 2016-08-24 | 淮北市平远软岩支护工程技术有限公司 | A kind of high artesian, the method for protecting support in fault disruption zone tunnel |
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| CN106285777B (en) * | 2016-10-28 | 2018-05-08 | 河北钢铁集团矿业有限公司 | The method that flood mine mineral building discharges water in advance |
| CN108915689A (en) * | 2018-07-09 | 2018-11-30 | 中南大学 | A kind of water rich strata shaft excavation spy shutoff method |
| CN111648772A (en) * | 2020-06-05 | 2020-09-11 | 四川发展天瑞矿业有限公司 | Mining main draw shaft straight hole curtain water drainage structure penetrating water inrush layer and construction method |
| CN111677550A (en) * | 2020-06-18 | 2020-09-18 | 陕西延长石油巴拉素煤业有限公司 | Water prevention and control protection method for safe tunneling of rock roadway through water-rich coal seam section |
| CN115788513B (en) * | 2023-01-17 | 2023-04-21 | 煤炭工业太原设计研究院集团有限公司 | Supporting waterproof structure and method for inclined shaft at junction of mudstone and carnallite ore layer |
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| CN201857971U (en) * | 2010-10-27 | 2011-06-08 | 中蓝连海设计研究院 | Vertical shaft of ore bed of salt rocks |
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| DE4002457A1 (en) * | 1990-01-27 | 1991-08-08 | Gewerk Auguste Victoria | WATERPROUGH DRILLING FOUNDATION |
| JP2000274178A (en) * | 1999-03-25 | 2000-10-03 | Nishimatsu Constr Co Ltd | Construction method for vertical shaft |
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| DE3913927A1 (en) * | 1989-04-27 | 1990-11-08 | Heitkamp Gmbh E | Mine shaft lining construction - lining sections resting on concrete foundation on slide bearing |
| GB2237591A (en) * | 1989-10-09 | 1991-05-08 | Heitkamp Gmbh E | Foundation for shaft tubbing means |
| CN101871348A (en) * | 2010-06-11 | 2010-10-27 | 山东科技大学 | Water-conducting and pressure-releasing type composite well wall of vertical shaft and construction method thereof |
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