CN105587318A - Filling mining method for continuous backstoping of gently inclined parallel medium thick ore body group - Google Patents
Filling mining method for continuous backstoping of gently inclined parallel medium thick ore body group Download PDFInfo
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- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
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Abstract
The invention discloses a filling mining method for continuous backstoping of a gently inclined parallel medium thick ore body group. According to the method, performing middle section division on a gently inclined parallel ore body group; performing panel division in the middle section along the strike; performing segment division in the panel; performing room and pillar backstoping; and performing stope vertical ore body trend arrangement. Main stope preparation projects such as out vein segmented roadways, layered connection roadways, chute connection roadways, draw shafts and sidewalk air inlet rise faces are arranged at an ore body lower panel; stope preparation projects such as filling return air shafts, lower ore bed return air filling shaft connection roadways and water filter well connection roadways are arranged in the upper ore layer and the lower ore layer, and are communicated through ort roadways at the bottom of the panel. The layer-by-layer backstoping is performed from bottom to top from the upper layer vein digging internal rock drilling roadways near the lower layer, and layers use the operation circulation of two mining, two discharging and one filling; a plurality of rooms simultaneously operate in the panel without mutual interference; and the continuous backstoping is realized. The method belongs to the optimized improvement based on a panel upward horizontal layered filling mining method; multilayer mineral veins can be backstoped at the same time; and separated mining and separated transportation are realized.
Description
Technical field
The invention belongs to underground metallic ore and non-metal mine exploitation field, relate in particular to a kind of low-angle dip parallel in thick ore depositThe method of mining by the way of filling of body group continuous stoping.
Background technology
Area, Wengan, China Guizhou phosphorus deposit type belongs to extra large source colloid chemistry gathering-basin endoparticle heavy origin cause of formation phosphorus ore againBed, deposit scale is large, and in district, compose and deposit two-layer ore deposit (ore deposit, upper strata and lower floor ore deposit), be gently inclined medium thick orebody, continuity is better. Upper strataOre deposit, for for calcium-magnesium phosphate rock ore, is suitable for manufacturing common phosphate fertilizer or phosphoric acid, and lower floor ore deposit is silicon calcium quality phosphorus block rock ore deposit, is suitable forManufacture the yellow phosphorus of high value. When exploitation, need separative production and separative delivery. Between two ore beds, there is the interlayer of an average thickness 4m. This ore body roof is filledWater, there are the mining area of flowing through, river, ore body roof, ore body and interlayer poor stability in earth's surface. Therefore this ore deposit Difficult issues of oilfield development is as follows: 1. ore body isThick uneasily mining orebody in low-angle dip; 2. ore body roof is for filling water-bearing layer, and hydrogeologic condition is more complicated; 3. ore body and steady of roofPoor, developmental joint fissure; 4. two closely ore bed is with adopting, and two-layer ore deposit ore needs separative production and separative delivery.
According to these phosphorate rock mining technical conditions, ore body roof water-filling and the effluent stream mining area of flowing through, therefore can not adopt Caving Method with Large SpaceExploitation, and ore body roof, ore body and interlayer poor stability, therefore should not adopt open-stope mining. Therefore, be subject to production technique condition systemApproximately, only should adopt cut and fill.
In recent years, many scholars have researched and developed a series of methods of mining by the way of filling for thick phosphorate rock mining in low-angle dip, as special in ChinaProfit CN201410358099 discloses the continuous ore removal of mechanization, the strip-type slicing and filling of thick phosphorus ore body in a kind of low-angle dip and has adoptedOre deposit method, the method adopts coal mine fully-mechanized mining face arrangement form, and fully-mechanized digging machine or connect is adopted the machine route type ore deposit that falls, and belt is transported ore deposit continuously. RawProduct continuously, output is high, security good, small investment. But when the method mining, route across strike advances, for upper and lower two parallel ore bedsWith adopting, be difficult to ensure stope safety, and adopt belt-conveying to be difficult to realize the partite transport of two kinds of ores and barren rock. Chinese patentCN201110393951 discloses a kind of gently inclined medium thick orebody without the continuous afterwards filling mining method of stage across pitch itemize, the partyMethod is arranged Zigzag type trackless ramp in ore body, utilizes itemize Cai Zhun lane to adopt entirely thickly to both sides ore body is disposable, and digging is than little,Depletion loss is little, and technique is simple, but is not suitable for ore body and all unsteady conditions of top board. To sum up, existing mining methods are all limitIn single coal mining, or require top board more firm, cannot meet the unsteady low-angle dip of ore deposit rock parallel in thick phosphorus ore group multilayerWith adopting, the requirement of separative production and separative delivery.
Summary of the invention
The object of the present invention is to provide the method for mining by the way of filling of the parallel middle thickness orebody group of a kind of low-angle dip continuous stoping, meetHydrogeology is complicated, ore deposit rock is built on the sand under condition, parallel gently inclined medium thick orebody group safety, efficient, extensive exploitation continuously andMultilayer is adopted together, the requirement of separative production and separative delivery.
The method of mining by the way of filling that the invention discloses the parallel middle thickness orebody group of a kind of low-angle dip continuous stoping, comprises following stepRapid:
(1) determine that stope is arranged vertically along orebody trend, parallel low-angle dip middle thickness orebody group is divided to stage casing, in stage casing, divideSegmentation, divides layering in segmentation; In stage casing, across pitch is divided panel, divides continuously mineral building and ore pillar in panel; Arrange connectionLevel haulage gallery, Chuan Mai tunnel and panel tailgate;
(2) development heading driving is arranged
A, outside the ore body lower wall in stage casing is arranged arteries and veins on segmentation tunnel, layering connecting taxiway, drop shaft, drop shaft connecting taxiway and People's Bank of China's air intakeMountain, People's Bank of China's air intake is gone up a hill and is arised from up behind Chuan Mai tunnel and the outer segmentation of each arteries and veins tunnel and is communicated with, and layering connecting taxiway arises from arteries and veins segmentation outwardTunnel, leads to respectively each layering; Drop shaft has ore deposit, upper strata drop shaft, lower floor's ore deposit drop shaft and barren rock drop shaft, and the outer segmentation of each arteries and veins tunnel respectivelyBe communicated with corresponding drop shaft by drop shaft connecting taxiway, drop shaft is arranged in level haulage gallery place;
B, in upper ore bed and lower ore bed, arrange respectively corresponding filling returnairshaft, in lower ore bed, cloth deposits the filling of ore bed return airWell connecting taxiway and water filter well connecting taxiway; The filling returnairshaft of upper ore bed is communicated with panel tailgate, the filling return air of lower ore bedWell is communicated with Chuan Mai tunnel by lower ore bed return air filling well connecting taxiway, and water filter well connecting taxiway is communicated with Chuan Mai tunnel;
(3) back production and filling
Mineral building ore pillar interval back production in panel, upper ore bed and lower ore bed separative production and separative delivery; From stage casing near foot layering oneDrilling drift successively back production from bottom to top in horizontal slice pick arteries and veins, same level layering, first adopts ore bed, then adopts lower ore bed; ?On quick-fried heap, pick, through the connecting taxiway of ore bed up and down of interlayer, is then first carried out packing job to the layering of upper ore bed, instantly ore bedAfter slicing and filling, continue to start next circulation; In panel, the operation simultaneously of multiple mineral buildings, does not interfere with each other, and realizes exploitation continuously; PanelLast back production when the foot layering of interior stope is left to the back production of next stage casing.
As preferably, approximately 50 meters of miding level heights, panel is about 120 meters, approximately 12.5 meters of heights of lift, point floor height approximately 4.0 ~4.2 meters, the width of mineral building and ore pillar is all about 8 meters, and in panel, mineral building ore pillar adopts one every one.
As preferably, the outer segmentation of described arteries and veins tunnel is arranged in, approximately 20 meters, border, lower floor ore deposit, and each segmentation is passed through between tunnelAssistance with hill road is connected.
As preferably, described layering connecting taxiway is arranged in respectively mineral building ore pillar boundary.
As preferably, the angle of inclination of described drop shaft approximately 65 degree.
As preferably, the layering in each stage casing is adopted two and is gone out two and fill one work cycle.
As preferably, adopt drill jumbo rock drilling, powder charge chassis is realized explosion, adopts scraper ore removal, and scraper is respectivelyOre under upper ore bed and lower ore bed are adopted is transported to corresponding drop shaft.
As preferably, filling slurry adopts mass concentration 69% ~ 73%, tailings: the tailings that ardealite proportioning is 1:3 ~ 1:4Ardealite consolidated fill.
When upper ore bed packing job, in the connecting taxiway in next-door neighbour goaf, interlayer place, build filling counterfort by laying bricks or stones, filling counterfort completesAfter, be filled with filling slurry by the return air fill pass of upper ore bed to goaf, be full of a layer and stop filling; Instantly ore bed is adoptedAfter field ore removal completes, set up by the way water filter well at stope base plate, in the layering connecting taxiway in next-door neighbour goaf, build filling counterfort by laying bricks or stones,After filling counterfort completes, be filled with filling slurry by lower floor's ore deposit return air fill pass to goaf, be full of a layer and stop filling;Obturation maintenance can be carried out next periodic duty in 24 hours.
Described Chuan Mai tunnel arteries and veins inner segment adopts the supporting of spray concrete, and the outer development heading of other arteries and veins adopts spray concrete or shotcrete rock bolt wire mesh support.Adopt tailings filling phosphorous gypsum slip one-time filling dead zone, reduce open-assembly time, and strengthen the rock mechanics of stope top board etc.Monitoring.
The present invention is that the optimization based on the prior art panel upward horizontal slice method of mining by the way of filling improves, and back production is simultaneously flatRow multilayer mineral ore, separative production and separative delivery. There is the features such as back production is safe, production capacity is large, depletion loss is little, be specially adapted to ore depositBody and steady of roof are poor, and production scale is large and need the parallel ore bodies group back production of separative production and separative delivery.
Particularly, the present invention considers unified parallel low-angle dip middle thickness orebody group, divides stage casing, panel, by wearing arteries and veinsTunnel, the connecting taxiway that passes interlayer and the interior drilling drift of arteries and veins etc. are adopted cut journey upper and lower two-layer ore deposit are linked together, and realize entiretyExploit simultaneously in upper multilayer ore deposit.
For realizing separative production and separative delivery, by arrange respectively return air fill pass, return air filling well in upper and lower parallel ore bedConnecting taxiway and water filter well connecting taxiway, arrange respectively ore deposit, upper strata, lower floor's ore deposit mine chute at lower wall, controls in same mineral building many simultaneouslyIndividual ore bed is in the priority stopping sequence of same level layering, make Nei Geceng ore deposit, panel to adopt Barebone relatively independent, realization dishThe exploitation respectively in multilayer ore deposit in district, transport respectively.
Large for realizing production capacity, adopt one back production mode by mineral building ore pillar in panel every one, multiple mineral buildings canOperation simultaneously, does not interfere with each other. Adopt the trackless equipments such as drill jumbo, powder charge chassis, large-scale scraper to work continuously, automation journeySpend high, efficiency is high.
For reducing depletion loss, divide continuously mineral building ore pillar by across pitch in panel, the post of digging up mine behind the room of first digging up mine,Last back production when panel foot layering is left to the back production of next stage casing, pillar and top-bottom pillar loss, loss late is low to moderate 10% ~12%; Dead zone adopts tailings ardealite consolidated fill, reduces top board and interlayer inbreak, and the rate of dilution is low to moderate 8%.
For the security improving in exploitation process, will mainly adopt accurate engineering and be arranged in the good clay of lower wall steadinessIn matter sandstone, by stope top board maximum permission exposed area and STOPE STABILITY analysis, mineral building ore pillar width is reduced to 8m,Guarantee mining safety, adopt tailings ardealite consolidated fill simultaneously, ensure the stable of top board water-bearing layer.
Brief description of the drawings
Accompanying drawing 1 is looked schematic diagram (I-I profile) for master of the present invention.
Accompanying drawing 2 is II-II section rotation enlarged diagram.
Accompanying drawing 3 is III-III generalized section.
Accompanying drawing 4 is IV-IV section rotation enlarged diagram.
In figure: 1-level haulage gallery, the outer segmentation of 2-arteries and veins tunnel, 3-lower floor ore deposit return air filling well connecting taxiway, 4-water filter wellConnecting taxiway, 5-layering connecting taxiway, 6-drop shaft connecting taxiway, 7-b ore bed mine chute, 8-barren rock drop shaft, 9-a ore bed mine chute,10-a, b ore bed connecting taxiway, 11-return air filling well, 12-Chuan Mai tunnel, 13-cemented fill, 14-interlayer, 15-panel return airGallery, 16-People's Bank of China air intake is gone up a hill, 17-water filter well, drilling drift in 18-arteries and veins.
Detailed description of the invention
The phosphorus Laohudong phosphorus ore development corporation, Ltd. Laohudong phosphorus ore green taking Guizhou is example.
The underground water enrichment region of Laohudong phosphorus ore in whole dolomite anticline plunging crown, bed top is that mining area mainly containsWater layer. Cong Nanwang Beiliu City, Yan Gen river, earth's surface, through mining area, exploits mineral deposit under water body. Within the scope of mining area, possess 111b/331+122b/332+333 ore amount 364647kt, average grade P2O525.95%. Ore body is gently inclined medium thick orebody, main compose deposit absolute altitude 0m ~800m. Ore body is total two-layer, and ore deposit, upper strata is b ore bed, inclination angle 15.2o, and average thickness 9.13m, is calcium-magnesium phosphate rock ore, suitableBe suitable for and manufacture common phosphate fertilizer or phosphoric acid; Lower floor ore deposit is a ore bed, inclination angle 15.2o, and average thickness 16.95m, is silicon calcium quality phosphorus block rockOre deposit, is suitable for manufacturing the yellow phosphorus of high value. When exploitation, need consider separative production and separative delivery. Between a ore bed and b ore bed, be interlayer, interlayer is flatAll thickness 3.99m. Ore body roof, ore body and interlayer are all taking thin brilliant dolomite as main, and rock has hard, crisp, broken feature, stableProperty is poor; Ore body base plate is clayey sandstone, and steadiness is better.
Concrete implementation step is as follows:
1) a, b ore bed are divided to stage casing, miding level height 50m, across pitch is divided panel, the long 120m in panel, height of lift 12.5m,Divide floor height 4.0 ~ 4.2m. In panel, across pitch is divided mineral building ore pillar continuously, and mineral building ore pillar width is 8m(can be stable according to ore deposit rockProperty is suitably adjusted);
2) ore body lower wall is arranged development heading
Arranging segmentation tunnel 2 outside four arteries and veins apart from about 20m place, a ore bed border, between each segmentation tunnel 2, pass through assistance with hill roadBe connected; Outside arteries and veins, in segmentation tunnel, be arranged in mineral building ore deposit every 16m to a seam floor driving layering connecting taxiway 5(layering connecting taxiwayPost boundary, a mineral building and an ore pillar share a layering connecting taxiway). From stage casing haulage way 1 to ore body, middle part pick is wornArteries and veins tunnel 12 communicates with panel tailgate 15, and 60 meters of spacing are then upwards dug the return air of b ore bed in panel tailgate 15Fill pass 11. In Chuan Mai tunnel 12, interior corresponding interlayer 14 is got in touch with the return air filling well of a bed top interface place pick a ore bedRoad 3, then upwards digs the return air filling well 11 of a ore bed in the return air filling well connecting taxiway 3 by a ore bed; In Chuan Mai tunnel 12Corresponding interlayer 14 and a seam floor interface place pick water filter well connecting taxiway 4. In Chuan Mai tunnel 12, upwards digging People's Bank of China's air intake goes up a hill16 are communicated with the outer segmentation of each arteries and veins tunnel 2;
A ore bed drop shaft, b ore bed drop shaft and barren rock drop shaft are arranged in respectively the corresponding position of ore body lower wall level haulage gallery,The outer segmentation of each arteries and veins tunnel 2 is communicated with corresponding drop shaft by drop shaft connecting taxiway 6 respectively; Segmentation tunnel 2 outside the each arteries and veins in middle part, panelTwo drop shaft connecting taxiways 6 of lower end pick be communicated with a ore bed mine chute 9, b ore bed mine chute 7 and barren rock drop shaft 8. Every between panelArrange ore, barren rock drop shaft, preferably 65 °, the inclination angle of each drop shaft every 120m;
3) in panel, the stopping sequence of stope is: last back production when foot layering is left to the back production of next stage casing, and nearDrilling drift successively back production from bottom to top in a upper layering pick arteries and veins of part layer, layering is adopted two and is gone out two and fill one operation and followRing. Same level layering, first adopts b ore bed, then adopts a ore bed, and digs a, b ore bed connecting taxiway through interlayer on quick-fried heap, thenThe horizontal slice of b ore bed is carried out to packing job, when after the horizontal slice filling of a ore bed, continue to start next circulation. In panelMineral building ore pillar adopts one every one, and many mineral buildings are stoping operation simultaneously, does not interfere with each other, and realizes exploitation continuously;
4) adopt the rock drilling of K41 hydraulic drill ring, in arteries and veins, in drilling drift 18, cut a hole to fanhole(s) aperture 45mm, hole depth4.8 ~ 6.1m, distance 2.2 ~ 2.5m at the bottom of hole, array pitch (minimum burden) 1.6 ~ 1.8m; Be equipped with YT28 rock drill auxiliary rock drilling simultaneously.When rock drilling, consider that immediate roof steadiness is poor, not super dark in principle by the hole of b ore bed and a bed top;
5) blasted material adopts No. 2 rock emulsion explosives, with the powder charge of CHARMECMC605 powder charge chassis. Initiating device is quick-fried for leadingPipe and non-electric millisecond delay cap, adopt double-detonating network to detonate. Every separate explosion 8 ~ 10 rows, rock yield 1000t ~1300t；
6) adopt ST1030 type 4m3Scraper ore removal, a, b ore bed ore and barren rock are transported to respectively panel through scraper and slip accordinglyWell;
7) freshly distinguished and admirablely flow into level haulage crossdrift by auxiliary shaft, enter after level haulage gallery 1, the arteries and veins tunnel 12 that wears long, people advanceWind goes up a hill 16, the outer segmentation of arteries and veins tunnel 2, layering connecting taxiway 5 enter stope cleaning face, and dirty wind is back to by return air fill pass 11Upper dish stage casing tailgate 15, through stage casing windstone gate, return air inclined shaft, is extracted out by returnairshaft. For improving stope face-airing,Adopt JK58-1NO4(5.5kW) or JK58-1NO4.5(11kW) type portable blower add forced ventilation, 1 ~ 2 of each stope;
8) adopt concentration 73%, tailings: the consolidated fill that ardealite proportioning is 1:4. In same mineral building (or ore pillar), b ore bed stopeAfter ore removal completes, enter immediately filling operation. In a in next-door neighbour goaf, interlayer place, b ore bed layering connecting taxiway 10, build by laying bricks or stonesThe filling counterfort that 600mm is thick, after filling counterfort completes, is filled with tailings ardealite by b ore bed return air fill pass 11 to goafFilling slurry, is full of a layer and stops filling. Then, after a ore bed ore drawing in stope completes, set up by the way filter at stope base plateWell 17 is built filling counterfort by laying bricks or stones, after filling counterfort completes, by the filling of a ore bed return air in the layering connecting taxiway in next-door neighbour goafCourtyard is filled with tailings filling phosphorous gypsum slip to goaf, be full of a layer and stop filling. Obturation maintenance 24 hoursCarry out next periodic duty, until ore body complete extraction is complete;
9) arteries and veins inner segment in Chuan Mai tunnel adopts the supporting of spray concrete, spray concrete 100mm, and the outer development heading of other arteries and veins adopts spray concrete or spray anchor net to prop upProtect, adopt Φ 20 anchor poles of long 2.5m, wire netting net degree 200mm × 200mm, spray concrete 100mm. Adopt tailings filling phosphorous gypsum materialOne-time filling dead zone, reduces open-assembly time, and strengthens the rock mechanics monitoring of stope top board etc.
Claims (10)
1. a method of mining by the way of filling for the parallel middle thickness orebody group of low-angle dip continuous stoping, comprises the following steps:
(1) determine that stope is arranged vertically along orebody trend, parallel low-angle dip middle thickness orebody group is divided to stage casing, in stage casing, divideSegmentation, divides layering in segmentation; In stage casing, across pitch is divided panel, divides continuously mineral building and ore pillar in panel; Arrange connectionLevel haulage gallery, Chuan Mai tunnel and panel tailgate;
(2) development heading driving is arranged
A, outside the ore body lower wall in stage casing is arranged arteries and veins on segmentation tunnel, layering connecting taxiway, drop shaft, drop shaft connecting taxiway and People's Bank of China's air intakeMountain, People's Bank of China's air intake is gone up a hill and is arised from up behind Chuan Mai tunnel and the outer segmentation of each arteries and veins tunnel and is communicated with, and layering connecting taxiway arises from arteries and veins segmentation outwardTunnel, leads to respectively each layering; Drop shaft has ore deposit, upper strata drop shaft, lower floor's ore deposit drop shaft and barren rock drop shaft, and the outer segmentation of each arteries and veins tunnel respectivelyBe communicated with corresponding drop shaft by drop shaft connecting taxiway, drop shaft is arranged in level haulage gallery place;
B, in upper ore bed and lower ore bed, arrange respectively corresponding filling returnairshaft, in lower ore bed, cloth deposits the filling of ore bed return airWell connecting taxiway and water filter well connecting taxiway; The filling returnairshaft of upper ore bed is communicated with panel tailgate, the filling return air of lower ore bedWell is communicated with Chuan Mai tunnel by lower ore bed return air filling well connecting taxiway, and water filter well connecting taxiway is communicated with Chuan Mai tunnel;
(3) back production and filling
Mineral building ore pillar interval back production in panel, upper ore bed and lower ore bed separative production and separative delivery; From stage casing near foot layering oneDrilling drift successively back production from bottom to top in layering pick arteries and veins, same level layering, first adopts ore bed, then adopts lower ore bed; At quick-fried heapUpper pick, through the connecting taxiway of ore bed up and down of interlayer, is then first carried out packing job to the layering of upper ore bed, instantly the layering of ore bedAfter filling, continue to start next circulation; In panel, the operation simultaneously of multiple mineral buildings, does not interfere with each other, and realizes exploitation continuously; In panel, adoptFoot layering last back production while being left to the back production of next stage casing.
2. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: stage casing40 ~ 60 meters of height, panel is long 80 ~ 150 meters, 9 ~ 15 meters of heights of lift, 3 ~ 5 meters of point floor heights, the width of mineral building and ore pillar is 8 ~15 meters, in panel, mineral building ore pillar adopts one every one.
3. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: described inThe outer segmentation of arteries and veins tunnel is arranged in, 15 ~ 35 meters, border, lower floor ore deposit, between each segmentation tunnel, is connected by assistance with hill road.
4. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: described inLayering connecting taxiway is arranged in respectively mineral building ore pillar boundary.
5. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: described inThe angle of inclination of drop shaft is between 60 degree to 90 degree.
6. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 2, is characterized in that: in eachLayering in section is adopted two and is gone out two and fill one work cycle.
7. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: adoptDrill jumbo rock drilling, powder charge chassis is realized explosion, adopts scraper ore removal, and scraper is under adopting upper ore bed and lower ore bed respectivelyOre is transported to corresponding drop shaft; In stope, adopt portable blower to add forced ventilation.
8. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: fillingSlip adopts mass concentration 69% ~ 73%, tailings: the tailings ardealite consolidated fill that ardealite proportioning is 1:3 ~ 1:4.
9. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: upper ore depositWhen layer packing job, in the connecting taxiway in next-door neighbour goaf, interlayer place, build filling counterfort by laying bricks or stones, after filling counterfort completes, by upper ore bedReturn air fill pass be filled with filling slurry to goaf, be full of a layer and stop filling; Instantly ore bed ore drawing in stope completesAfter, set up water filter well by the way at stope base plate, in the layering connecting taxiway in next-door neighbour goaf, build filling counterfort by laying bricks or stones, filling counterfort is completeCheng Hou, is filled with filling slurry by lower floor's ore deposit return air fill pass to goaf, is full of a layer and stops filling; Obturation maintenanceWithin 24 hours, can carry out next periodic duty.
10. the method for mining by the way of filling of dip-parallel middle thickness orebody group continuous stoping as claimed in claim 1, is characterized in that: instituteState Chuan Mai tunnel arteries and veins inner segment and adopt the supporting of spray concrete, the outer development heading of other arteries and veins adopts spray concrete or shotcrete rock bolt wire mesh support.
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