CN208619164U - For blocking the tailing-filled barricade of dead zone mining tunnel to be filled - Google Patents

Abstract

The utility model discloses a kind of for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, including filling pipe, it further include the cofferdam bracket being arranged in fill area between outside, operating platform, people's row ladder and several filling bags, cofferdam bracket includes at least two rows of steel skeletons arranged along tunnel section and the horizontal vertical pole being vertically connected between steel skeleton, filling pipe is passed through and is connected at the top of fill area with filling bag, what operating platform and people's row ladder were sequentially communicated is erected at close to outside the second row steel skeleton of fill area disposed inboard, the layer-by-layer bond of bag from the bottom to top is filled on the horizontal vertical pole between two steel skeletons close to fill area disposed inboard, dead zone cemented fill is filled on the inside of fill area, filling bag is alternately arranged with dead zone cemented fill same layer.The utility model has that safety is good, constructs that high-efficient, labor intensity is small, and sealing effect is good, at low cost, forms quick feature.

Description

For blocking the tailing-filled barricade of dead zone mining tunnel to be filled

Technical field

The utility model relates to underground mining technical fields, and in particular to one kind is for blocking dead zone mining tunnel to be filled Tailing-filled barricade.

Background technique

The method of mining by the way of filling is, with the propulsion of stope, to be sent into filler to goaf in mineral building or nugget, To carry out underground pressure management, control country rock avalanche and surface movement, and nugget is carried out in the obturation of formation or under its protection The mining methods of back production.The advantages of filling method be it is adaptable, ore recovery rate is high, and the rate of dilution is low, operation safety, can effectively protect Subsidence is protected, the effective measures pressed to control when being deep mining.The method of mining by the way of filling makes in metal and nonmetal mine at present It is more and more extensive.With the innovation of mining technique and equipment, mining is towards intelligence, scale, intensive side To development.Domestic and international mine generallys use biggish stope structure parameter, such as stage open stope afterwards filling mining method, mine stage Height can reach 120m or more, and the goaf formed after exploitation is larger；Furthermore in order to improve the production efficiency, underground mine The mining equipment of enlargement is mostly used to be exploited, underground scraper bucket capacity has reached 10m³More than, in order to meet mechanical equipment Operation and safety requirements, drift section require greatly, this all to dead zone block with filling bring extreme difficulties.

Filling counterfort is an essential process procedure in the method for mining by the way of filling, and effect is in stope dead zone to be filled Fire dam is constructed in the tunnel of bottom inlet with close the goaf, the problems such as to prevent Filling mine-out area slurry spillage, running pulp.Tailings The security reliability of filling counterfort is extremely important safety guarantee to underground work personnel, equipment and normal production.State at present Constructing for inside and outside filling counterfort specifically includes that block arch barricade, work stone barricade, plain concrete barricade and Reinforced Concrete Retaining Walls.Element Concrete guard wall and Reinforced Concrete Retaining Walls can be applied to constructing for large section roadway barricade.

It is proved by long-term engineering practice, existing filling counterfort often has the disadvantage in that

(1) it builds arch barricade and work stone barricade is all first to be built using materials such as hollow bricks, then whitewashing adds in barricade outer surface Gu building a light section filling counterfort generally requires 8-36h, 3d or more is generally required curing cycle, constructing cost is about Ten thousand yuan of 0.4-1.0；Which there are construction efficiency low, large labor intensity, duty cycle be long, the unstable drawback of barricade, barricade It collapses and running pulp accident repeated, serious person will lead to underground equipment and scrap and casualties, and not be able to satisfy big cross section lane Road demand for security, therefore be only applicable to small section tunnel substantially and block use.

(2) plain concrete barricade is directly filled by being unworthy of the concrete of reinforcing bar, because consolidating without reinforced bar support Effect, plain concrete retaining wall are all only used for the lesser gravity retaining wall of height, and not being able to satisfy large section roadway needs safely It asks, is only applicable to small section tunnel use.

(3) Reinforced Concrete Retaining Walls are first to bind one in the position of barricade design with steel mesh, sackcloth, reinforcing bar and template etc. A filling counterfort frame is fixed in tunnel roof and floor and two helps on reserved anchor pole.This Retaining wall, which will seek template, to be had Enough intensity, rigidity and stability can bear issuable every load in the gravity lateral pressure and construction of novel concrete, And form joint must not spillage.It needs sufficiently to vibrate using vibrating head after casting concrete, to guarantee concrete compaction, no honeycomb Pitted skin, meanwhile, for the integrality for guaranteeing concrete, needs to entire barricade concrete while pouring, when avoiding because of different fillings Between lower slurry condense out existing time difference gap, guarantee plugging effect, make to form a whole end face up and down, this is for large section roadway Difficulty of construction is big, the construction time is long, construction cost height, and could be to filling after the complete condensation cure of slurry in only equal barricades Carry out on the inside of area tailing-filled, the time for causing dead zone tailing-filled can not further shorten, influence mining engineering it is whole into Degree.There are complicated construction technique, the high disadvantages of cost for which.

Utility model content

The purpose of this utility model is to provide a kind of easy for construction, flexible, the construction time is short, stable structure for sealing Block up the tailing-filled barricade of dead zone mining tunnel to be filled.

It is provided by the utility model this for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, including filling Pipe, further includes the cofferdam bracket being arranged between fill area medial and lateral, operating platform, people's row ladder and several filling bags, described Cofferdam bracket includes at least two rows of steel skeletons along tunnel section arrangement and the horizontal vertical pole that is vertically connected between steel skeleton, described Filling pipe pass through at the top of fill area with fill bag and be connected to, what the operating platform and people's row ladder were sequentially communicated be erected at close to filling out It fills outside the second row steel skeleton of area's disposed inboard, the filling bag layer-by-layer bond from the bottom to top is close to fill area disposed inboard Two steel skeletons between horizontal vertical pole on, on the inside of the fill area be filled with dead zone cemented fill, the filling bag and Dead zone cemented fill same layer is alternately arranged.

It is not poured out for protection filling bag, is wound with the steel affixed with steel skeleton or tunnel inner wall on the filling bag Muscle.

To prevent filling bag external drum, auxiliary sealing plate is disposed between filling bag and the steel skeleton.

To accelerate pack effectiveness, the filling pipe is connected from different filling bags at least through two filling branch pipes, respectively fills It fills out on branch pipe at least provided with two pipeline valves.

The filling branch pipe uses ripple geotechnique hose.

The steel skeleton is mutually connected vertically by several upright bars and horizontal cross bar, upright bar and dead zone top plate and dead zone bottom Plate is connected, and horizontal cross bar is connected with dead zone lateral wall, and horizontal vertical pole moves towards arrangement along tunnel.

The height of the cofferdam bracket is less than 5m, and the steel skeleton is two rows.

The height of the cofferdam bracket is greater than 5m and is less than 10m, and the steel skeleton is three rows.

The height of the cofferdam bracket is greater than 10m, and the steel skeleton is no less than four rows.

The steel skeleton is six rows, and people's row ladder is equipped with two rows of and rides upon three rows close to arrangement on the outside of fill area On horizontal vertical pole between steel skeleton, the second row and third that operating platform rides upon close to fill area disposed inboard arrange steel skeleton Between horizontal vertical pole on, operating platform one end is connected to people's row ladder with the docking of filling bag, one end by people's row platform.

Compared with prior art, the utility model has the advantage that

1, it since filling bag is flexible membrane material, under the gravity of filling slurry, strict can be pasted with tunnel inner wall It closing, there is the adaptivity to different tunnel profiles, sealing effect is good, and it is adaptable, it is widely portable to various closure sections.

It 2,, being capable of strict and adjacent filling bag under the gravity of filling slurry since filling bag is flexible membrane material Fitting, filling directly successively can alternately fill dead zone after filling bag, since the lateral pressure that one layer of dead zone cemented fill generates is remote Much smaller than the lateral pressure that whole filling generates, after every layer of filling bag is in the milk, do not need to wait its interior complete condensation cure of slurry i.e. It can further shorten the speed of Filling mine-out area to being filled on the inside of filling area, accelerate the overall progress of mining engineering.

3, terminate after Filling mine-out area and conserve to desired strength, visual dead zone safe condition to filling bag barricade on the outside of Bracket and scaffold board carry out recycling and reusing, further decrease and construct cost.

4, cofferdam bracket is set up in tunnel, strength support is carried out to filling bag, can effectively reduce filling counterfort breakage leakage Situation, not will cause sudden extensive running pulp accident.

5, filling pipe passes through and enters packing job area at the top of fill area, from high to lower blanking bashing, benefit Realize that dead zone connects top comprehensively with the filling expansion agent etc. in the pipeline pressure of filling pipe and filling slurry, sealing effect is good.

The utility model has that safety is good, constructs that high-efficient, labor intensity is small, and sealing effect is good, and at low cost, molding is fast The feature of speed.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is schematic cross-sectional view at A-A in Fig. 1.

Fig. 3 is schematic cross-sectional view at B-B in Fig. 1.

Label and corresponding component name shown in figure are as follows:

1, filling pipe；2, cofferdam bracket；3, operating platform；4, people's row ladder；5, bag is filled；6, dead zone cemented fill； 7, dead zone top plate；8, dead zone bottom plate；9, dead zone lateral wall；10, people's row platform；11, on the inside of fill area；12, on the outside of fill area；13, Filter pipe；14, top row tracheae is connect；21, steel skeleton；22, horizontal vertical pole；51, reinforcing bar；52, sealing plate is assisted；211, upright bar；212, Horizontal cross bar.

Specific embodiment

It is this for blocking the tailing-filled of dead zone mining tunnel to be filled to can be seen that the utility model from Fig. 1 to Fig. 3 Barricade, including filling pipe 1, cofferdam bracket 2, operating platform 3, people's row ladder 4, several filling bags 5, dead zone cemented fill 6, filter Water pipe 13 and connect top row tracheae 14, wherein

The setting of filling pipe 1 is bonded arrangement with dead zone top plate 7 at the top of fill area,

Cofferdam bracket includes steel skeleton 21 and several horizontal vertical poles 22, and steel skeleton 21 is at least two rows of and along tunnel section It being arranged on the inside of fill area between 11 and fill area outside 12, horizontal vertical pole 22 is vertically connected between each steel skeleton 21,

What operating platform 3 and people's row ladder 4 were sequentially communicated is erected at the second row reinforcing bar close to 11 arrangements on the inside of fill area Outside frame 21,

Filling bag 5 is laid on close on the horizontal vertical pole 22 on the inside of fill area between two steel skeletons 21 of 11 arrangements, filling Pipe 1 pass through fill area at the top of from the bottom to top it is layer-by-layer with fill bag 5 be connected to slip casting, about 5 bond of filling bag after slip casting,

Dead zone cemented fill 6 is alternately filled in 11 on the inside of fill area with same layer after filling 5 slip casting of bag.

The steel skeleton 21 that can be seen that the utility model from Fig. 1 to Fig. 3 is mutual by several upright bars 211 and horizontal cross bar 212 Vertically be formed by connecting, upright bar 211 is connected by round steel with dead zone top plate 7 and dead zone bottom plate 8, horizontal cross bar 212 pass through round steel and Dead zone lateral wall 9 is connected, and horizontal vertical pole 22 moves towards arrangement along tunnel.

In the present invention, cofferdam bracket is built using the common fastener type steel pipe scaffold of building trade, is stood Bar 211, horizontal cross bar 212 and horizontal vertical pole 22 are all made of the welded still pipe or seamless steel pipe of outer diameter 48mm, wall thickness 3.5mm.

In the present invention, the number of rows of cofferdam bracket steel skeleton is determined by cofferdam height, that is, head-room: cofferdam height When less than 5m, using double steel skeleton 21；When cofferdam height is greater than 5m less than 10m, using three row's steel skeletons 21；Cofferdam height is big When 10m, use 4 rows or 4 rows with upper pright stanchion bracket.The design spacing dimension of cofferdam bracket: to fill the width of bag 5 as base Standard, the spacing L1 designed close to first row steel skeleton 21 to the second row steel skeleton 21 of 11 arrangements on the inside of fill area are filled equal to one Fill out the width of bag 5, second drains into third row, to drain into the spacing L2 of the backs such as the 4th row discharge steel skeleton 21 be to fill for half to third The width of bag 5 is filled out, each to arrange the width that 211 spacing L3 of upright bar in steel skeleton 21 is half of filling bag 5, horizontal vertical pole 22 walks upwards It is the width of half of filling bag 5 away from L4.

The height that can be seen that the utility model cofferdam bracket from Fig. 1 to Fig. 3 is greater than 10 meters, and steel skeleton 21 has 6 rows, people Row ladder 4 is equipped with two rows of and rides upon close on the horizontal vertical pole 22 on the outside of fill area between three steel skeletons 21 of 8 arrangements, operation Platform 3 rides upon close on the horizontal vertical pole 22 between the second row of 7 arrangements on the inside of fill area and third row's steel skeleton 21, operation 3 one end of platform is connected to by people's row platform 10 with people's row ladder 4 with the docking of filling bag 5, one end.

It can be seen that from Fig. 1 to Fig. 3 on the filling bag 5 of same layer arrangement, every 5m sections is about 20m steel with 6~8mm of Φ Muscle 51 winds the filling bag 5 being adjacently positioned, and each end of reinforcing bar 51 is fixed in the upright bar 211 of tunnel inner wall or steel skeleton 21, with Protection filling bag does not pour out.

It can be seen that from Fig. 1 to Fig. 3 and be disposed with auxiliary sealing plate 52, the auxiliary sealing plate between filling bag 5 and steel skeleton 21 52 are made of plank or bamboo hedge.

It can be seen that filling pipe 1 from Fig. 1 to Fig. 3 and be connected at least through two filling branch pipes from different filling bags 5, fill Branch pipe is filled out using ripple geotechnique hose, is respectively filled on branch pipe at least provided with two pipeline valves.

The construction method of the utility model, includes the following steps:

A, filling pipe 1 is laid at the top of fill area, 1 tail portion of filling pipe on each tailing-filled barricade connects two in principle Root fills branch pipe, and filling branch pipe uses ripple geotechnique hose；

B, on the inside of the fill area 11 and fill area on the outside of set up cofferdam bracket 2 between 12, the cofferdam bracket 2 is by several along lane The steel skeleton 21 of road section arrangement and the horizontal vertical pole 22 being vertically connected between each steel skeleton 21 form,

Steel skeleton 21 is at least two rows of, and the number of rows of steel skeleton 21 increases with being incremented by for 2 height of cofferdam bracket: working as cofferdam When height is less than 5m, using double steel skeleton 21；When cofferdam height is greater than 5m less than 10m, using three row's steel skeletons 21；Cofferdam is high When degree is greater than 10m, using 4 rows or the above steel skeleton 21 of 4 rows,

The design spacing dimension of each steel skeleton 21 is on the basis of filling the width of bag 5 as variation: when the width of filling bag 5 When for 2m, close to fill area on the inside of the spacing L1 of first row steel skeletons 21 to second row steel skeleton 21 of 11 arrangements be equal to one and fill Fill out the width i.e. 2m of bag 5, second drains into third row, to drain into the spacing L2 of the steel skeletons 21 such as the 4th row be half of filling bag to third 5 width, that is, 1m, it is each to arrange the width i.e. 1m that interior 211 spacing L3 of upright bar is half of filling bag 5, the upward step pitch of horizontal vertical pole 22 L4 is width, that is, 1m of half of filling bag 5；

C, interconnected 3 and of operating platform is successively set up outside the second row steel skeleton 21 close to fill area disposed inboard People's row ladder 4, determination can arrange a row or two rows to people's row ladder 4 according to field condition, each one manages it ladder 4 using steel construction hook Formula ladder simultaneously arranges that end of every two meters of rising in people's row ladder 4 sets people's row platform 10 and 3 phase of operating platform in Zigzag type Logical, people's row platform 10 and operating platform 3 are laid with using scaffold board, and must assure that pedestrian and operation safety are reliable；

D, first is being laid on the horizontal vertical pole 22 of bottommost between two steel skeletons 21 of 11 arrangements close on the inside of fill area Layer filling bag 5,

After 5 meters wind the filling bag 5 of adjacent laying with the reinforcing bar 51 for being about 20m of 6~8mm of Φ, by reinforcing bar 51 Both ends are fixed on upright bar 211 or the tunnel inner wall of the steel skeleton 21 docked with fill area inside, not outside with protection filling bag Topple over,

After this layer filling bag is completed, filling branch pipe is connect with each filling bag 5, execute-in-place work notifies earth's surface Filling Station people Member carries out the filling of slurry, connects top rate to improve Filling mine-out area, slurry can be prepared by high alumina cement, can also be added in slurry Add filling expansion agent,

When a filling bag will be filled with, operative employee beats the valve for being already attached to the filling branch pipe of next filling bag It opens, and closes the valve for the filling branch pipe that previous filling bag fills with, layer filling bag is full of by sequence one by one according to this,

It is contour after filling slurry solidification in layer filling bag 5, then to 11 fillings on the inside of fill area and this layer filling bag Dead zone cemented fill 6,11 each packed heights of fill area inside are step pitch, that is, 0.5m on the longitudinal direction of half of horizontal vertical pole 22, are filled Raising degree reaches carries out next layer of packing job again after step pitch i.e. 1m on the longitudinal direction of a horizontal vertical pole 22, when filling requires dead zone The filling slurry setting percentage > 90% of cemented fill 6 is filled in bag 5 and is reached self-support, compression strength > in slurry 8 hours 2.5MPa；

E, repeat the above steps d, from the bottom to top, successively alternately carries out the bond and upper one layer of sky of one layer of filling bag 5 The filling of area's cemented fill 6 forms filling gear until the filling bag 5 and dead zone cemented fill 6 of topmost fill and connect top Wall；

F, filling counterfort maintenance reaches design strength.

In above-mentioned steps b, steel skeleton 21 is mutually connected vertically by several upright bars 211 and horizontal cross bar 212, upright bar 211 are connected by round steel with dead zone top plate 7 and dead zone bottom plate 8, and horizontal cross bar 212 is connected by round steel with dead zone lateral wall 9, horizontal Vertical pole 22 moves towards arrangement along tunnel.

In above-mentioned steps b, the specific erection process of cofferdam bracket 2 is as follows:

1, the rubble on dead zone bottom plate 8 is first cleared up, meets that rubble is more when can not clear up, geotextiles can be first laid on turquoise Or adjustment cofferdam position.

2, the installation site of cofferdam bracket 2 is demarcated.

3, in the upright bar of calibration 211 and horizontal cross bar 212 in palisades circumferential position Drilling aperture 40 or the vertical hole of 42mm (vertical with construction surface), 0.6~0.7m of hole depth.

4, it is inserted into 30 round steel of Φ in vertical hole, round steel length 1.0m, basset 0.3~0.4m, pours C15 concrete.

5, again by 211 sets of upright bar outside round steel after round steel is fixed, 7 position of dead zone top plate can weld round steel and upright bar 21 It is connected together；After the erection of upright bar 21, by 212 sets of horizontal cross bar outside corresponding round steel, complete steel skeleton 21 is formed.

6, after the erection of horizontal cross bar 212, horizontal vertical pole 22 is fixed in the handover of each upright bar 211 and horizontal cross bar 212 Place, forms the cofferdam bracket 2 of completion.

7, it is disposed on the corresponding surface of two rows of steel skeletons 21 of 11 arrangements by plank or bamboo hedge system close on the inside of fill area At auxiliary sealing plate 52, to filling 5 two sides of bag carry out closure fixation, to prevent fill 5 external drum of bag.

, can be in above-mentioned steps e when needing to fill there are multiple dead zones, it will filling while being laid with slicing and filling bag Pipe 1 is forwarded to another dead zone and is filled, the alternately packing job between multiple fill areas.

In the present invention, when carrying out the cofferdam filling of filling bag 5, operative employee need to stand in the dead zone consolidated fill of solidification Operation on body 6.

In the present invention, terminate after Filling mine-out area and conserve to desired strength, visual dead zone security situation is to filling The bracket and scaffold board filled out on the outside of bag barricade carry out recycling and reusing.

The erection and Filling mine-out area operation of cofferdam bracket 2 need to carry out under secure conditions, the operation of frame pipe, people's row ladder 4 It sets up and scaffold board laying should meet construction safety requirement, while downhole safety operation rule should be strictly observed in work progress Journey, it is stringent to be carried out by filling sack cofferdam construction requirement, forbid violation, operate against regulations.Since cofferdam height is big, sack cofferdam category is filled High altitude operation, it is desirable that frame pipe is solid and reliable, keeps good illumination at the construction field (site), and running check top plate and periphery ore pillar stablize feelings Condition.It when meeting unsafe condition in stowing operation, stops operation immediately, excludes dangerous situation and accident potential in time, prevent unexpected thing Therefore generation.

Claims (10)

1. a kind of for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, including filling pipe (1), it is characterised in that: It further include the cofferdam bracket (2) being arranged between fill area medial and lateral, operating platform (3), people's row ladder (4) and several fillings Bag (5), the cofferdam bracket include at least two rows of steel skeletons (21) along tunnel section arrangement and are vertically connected between steel skeleton Horizontal vertical pole (22), the filling pipe pass through at the top of fill area with fill bag and be connected to, the operating platform and people's row ladder according to Secondary connection is erected at close to outside the second row steel skeleton of fill area disposed inboard, the layer-by-layer bond of the filling bag from the bottom to top It is cementing filled with dead zone on the inside of the fill area on horizontal vertical pole between two steel skeletons close to fill area disposed inboard Obturation (6), the filling bag are alternately arranged with dead zone cemented fill same layer.

2. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The reinforcing bar (51) affixed with steel skeleton or tunnel inner wall is wound on the filling bag.

3. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: Auxiliary sealing plate (52) is disposed between filling bag and the steel skeleton.

4. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The filling pipe is connected at least through two filling branch pipes from different filling bags, each to fill on branch pipe at least provided with two pipelines Valve.

5. according to claim 4 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The filling branch pipe uses ripple geotechnique hose.

6. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The steel skeleton is mutually connected vertically by several upright bars (211) and horizontal cross bar (212), upright bar and dead zone top plate (7) and Dead zone bottom plate (8) is connected, and horizontal cross bar is connected with dead zone lateral wall (9), and horizontal vertical pole moves towards arrangement along tunnel.

7. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The height of the cofferdam bracket is less than 5m, and the steel skeleton is two rows.

8. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The height of the cofferdam bracket is greater than 5m and is less than 10m, and the steel skeleton is three rows.

9. according to claim 1 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, it is characterised in that: The height of the cofferdam bracket is greater than 10m, and the steel skeleton is no less than four rows.

10. according to claim 9 for blocking the tailing-filled barricade of dead zone mining tunnel to be filled, feature exists In: the steel skeleton is six rows, and people's row ladder is equipped with two rows of and rides upon three row's reinforcing bars close to arrangement on the outside of fill area On horizontal vertical pole between frame, operating platform is ridden upon close between second row and third row's steel skeleton of fill area disposed inboard Horizontal vertical pole on, operating platform one end is connected to people's row ladder with the docking of filling bag, one end by people's row platform (10).