CN105937400B - It is a kind of once to tunnel Liu Sheshuan lanes digging operation production line - Google Patents
It is a kind of once to tunnel Liu Sheshuan lanes digging operation production line Download PDFInfo
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- CN105937400B CN105937400B CN201610459072.1A CN201610459072A CN105937400B CN 105937400 B CN105937400 B CN 105937400B CN 201610459072 A CN201610459072 A CN 201610459072A CN 105937400 B CN105937400 B CN 105937400B
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
Abstract
Liu Sheshuan lanes digging operation production line is once tunneled the invention discloses a kind of, after the digging of support in gateway of coal mining face driving Shi Dan lanes immediately following face rear portion by the artificial coal column supporting of placing concrete mid-board by single lane be divided into side be crossheading, opposite side be two tunnels of gob side entry retaining, setting development machine, adhesive tape discharge refuse transporter in two tunnels；What the face rear portion was equipped with connection crossheading and gob side entry retaining connects lane, crossheading, gob side entry retaining collectively form U-shaped ventilation with lane is connected, setting advance support automatic moving type template hydraulic pressure is tried to stop people from fighting each other suspension device in connection lane, and advance support automatic moving type template hydraulic pressure suspension device rear end of trying to stop people from fighting each other is docked with mid-board.This once tunnels Liu Sheshuan lanes digging operation production line and is easy to construction, safe and reliable, cost-effective, not only the digging of gob side entry retaining and back production crossheading and supporting construction are completed, and can realize dash, it can meet lead abutment pressure and adopt the requirement of the multiple mining influence of rear surge pressure.
Description
Technical field
The present invention relates to an a kind of colliery digging work production line, is specifically that a kind of mine down-hole that is suitable for exploits back production
The mining roadway concretes such as tunnel, upper go-downhill roadway are poured into a mould and the once driving Liu Sheshuan lanes digging operation production line of filled wall, belong to
In mining Technology Underground Coal Mine field.
Background technology
The way in lane is stayed to be known as gob side entry retaining in former crossheading position along mined out area edge, gob side entry retaining has the rate of extraction
High, reduction bump, reduce the advantages that tunnelling rate, tunnel later maintenance expense are few, and gob side entry retaining includes staying setting wide coal
Column, thin coal pillar and without coal pillar mining technology, in order to reduce the loss of coal pillar between the track lane in seam mining region and transportation roadway,
Improve the coal resources rates of extraction can using no coal pillar mining technology, i.e., do not stay protection pillar during coal mining and in other ways
Safeguard the production technique in tunnel.
Gob side entry retaining safeguards that tunnel, packwall safeguard that lane is safeguarded in tunnel, intensive supporting including armored concrete bearing at present
Road, pile safeguard tunnel, soft mould obturation etc., and its essence is the rear stope drift active workings for having exploited working face are used grillage, are built by laying bricks or stones
Waste pack, filling concrete the methods of make its tunnel stay set come, is used as next stope drift active workings for adopting face, but these biographies
The edge air gallery technology of system has the following disadvantages：1. of high cost, poor for applicability, complex process, cut and push up ineffective, wall wall caving
Seriously, stability is poor, and mine timber consumption is big；2. dash is poor during stope drift active workings tunnel, influence that construction continues, work people
Member's coal dust soakage is big, borehole is not easy to discharge；3. using the method for following concrete wall by Ileal neobladder filling lane closely, to back production
Normally production brings influence to working face, interferes with each other；4. cast concrete hand packing wall generally requires frame mould and form removal work
Make, increase labor strength, no packaged type cast template；5. during seam mining, coal face is subject to advanced branch pressure-bearing
Wall caving and gross distortion occur for the influence of power, tunnel, cause that tunnel collapses under pressure or filled wall is tight into goaf or tunnel
Even tempestuously sliding phenomenon, tunnel net section reduce for crimp again, influence tunnel normal use, and reclamation work is difficult, and
Influence assistant conveyance and ventilation.
To solve problem above, existing reinforcing and build filled wall main method by laying bricks or stones and have：Using the water of high grade high intensity
The means such as monomer hydraulic supporting (concrete supporting, wooden prop) are added in mud, the configuration of improvement filled wall material, filled wall outside, this
Although a little means can partly improve the deformation and sliding of filled wall, cannot tackle the problem at its root, belong to by
Dynamic support technology method；In addition, on ventilating problem, the prior art is still using traditional local fan ventilation mode, i.e. air duct inlet air, lane
Waste air is said, ventilating problem can not be solved, therefore, how to effectively control the security and stability with guarantee filling concrete wall and reduction
The deformation of wall, improve its own self-bearing ability, substantially solve dash it is difficult the problems such as be need to continue at present solve weight
Big safety production technique problem.
In short, the edge air gallery technology of existing use, no matter from wall design of its support thinking is constructed or from ventilating problem
On still remain irrationality, or most roadway construction by gob side entry retaining and crossheading separately tunnel cannot rationally using one fortune
Or the back production face of adopting, is adopted preceding tunnelling and Cai Houliu lanes independence mutually by defeated belt row spoil, without gob side entry retaining and crossheading
Construction is considered as a total system engineering, can not give overall consideration to, and causes gob side entry retaining wall in lead abutment pressure and adopts postpeak
Under the multiple mining influence of duty pressure, tunnel can not normal use, cause gob side entry retaining effect not reach expected effect, even
Reprocess cost of the cost far above driving and reserved coal pillar.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of once driving Liu Sheshuan lanes digging operation production line, can realize easily
In construction, it is safe and reliable, cost-effective, not only overall planning is complete by the digging of gob side entry retaining and back production crossheading and supporting construction
Into, using the teaching of the invention it is possible to provide the integer support intensity of larger gob side entry retaining roadside support simultaneously realizes dash, can meet to support in advance
Pressure and adopt rear surge pressure multiple mining influence requirement.
To achieve the above object, this once tunnels Liu Sheshuan lane digging operation production lines when support in gateway of coal mining face is tunneled
Single lane is divided into side for crossheading, another by the mid-board of the artificial coal column supporting of placing concrete immediately following face rear portion after the digging of single lane
Side is two tunnels of gob side entry retaining, and development machine, adhesive tape discharge refuse transporter are set in two tunnels；The face rear portion is equipped with
Connect lane of the crossheading with gob side entry retaining is connected, crossheading, gob side entry retaining collectively form U-shaped ventilation with lane is connected, and connect and are set in lane
Advance support automatic moving type template hydraulic pressure is tried to stop people from fighting each other suspension device, and advance support automatic moving type template hydraulic pressure tries to stop people from fighting each other suspension device rear end with
Partition wall docks, and automatic moving type template hydraulic pressure is tried to stop people from fighting each other, and suspension device includes ∏ types filling perfusion packaged type template, mid-board props up in advance
Protect self-advancing hydraulic support and packaged type scrapper conveyor；∏ types filling perfusion packaged type template is included positioned at the template side of side
Face and positioned above template front, formwork sides be equipped with unidirectionally into slurry baffle injected hole, template front is equipped with
Template door.
Scheme as a further improvement on the present invention, ∏ types filling are irrigated in packaged type inner formwork mid-board
Reinforcing network, and be suspended to by hanging iron wire on the anchor net or anchor pole of back.
Scheme as a further improvement on the present invention, reinforcing network is plastic wire or web or steel in the mid-board
Muscle net or steel fiber net.
Scheme as a further improvement on the present invention, the interior slip dress that resistance wall body displacement deformation is set of the mid-board
Put and horizontally arranged prestress anchoraging device.
As a kind of embodiment of resistance wall body displacement deformation carriage of the present invention, the resistance wall position, which moves, to be become
The carriage of shape includes top plate reinforcement anchor pole, bottom plate reinforcement anchor pole, top plate reinforcement armature boring, bottom plate and resists
It is sliding reinforce armature boring, top plate reaming, bottom plate reaming, top bottom docking casing,Type reinforcing rib, tie wire and laterally reinforcement
Lacing wire；Top plate reinforcement anchor pole, top plate reinforcement armature boring, top plate reaming correspond to mid-board and are arranged on top plate；Bottom
Plate reinforcement anchor pole, bottom plate reinforcement armature boring, bottom plate reaming correspond to mid-board and are arranged on bottom plate；Type is strengthened
Muscle is arranged to more than one piece, more than one pieceType reinforcing rib is symmetrically vertically arranged and is fixed by tie wire, and more than one pieceType is strengthened
Muscle is connected by pushing up bottom docking casing with top plate reinforcement anchor pole and bottom plate reinforcement anchor pole；Laterally strengthen lacing wire lateral hook
Extension is fixed atBetween type reinforcing rib.
A kind of embodiment of the prestress anchoraging device horizontally arranged as the present invention, the horizontal direction are set
The prestress anchoraging device put is pretensioned prestressing anchor, including first opens screw thread lacing wire, pretensioning tendon bush, pretensioning
Muscle anchorage or nut, grout cover piece and docking Short bolt；First open screw thread lacing wire to be horizontally disposed with, the both ends for first opening screw thread lacing wire pass through
Pretensioning tendon bush is connected with the docking Short bolt through formwork sides, and docking Short bolt passes through grout cover piece and pretensioning muscle anchor
Tool or nut are fixedly mounted on formwork sides.
Scheme as a further improvement on the present invention, sets gob side entry retaining advance support self moving hydraulic in gob side entry retaining
Stent or individual prop or steel arch shed shoring.
Scheme as a further improvement on the present invention, the longitudinal section of the mid-board is rectangle or trapezoidal or micro- arch
Structure.
Compared with prior art, this once tunnels Liu Sheshuan lanes digging operation production line and 1. will be used after a tunnel initating
The mode of setting is stayed in the tunnel of one-to-two, extremely advantageous to improving ventilation during driving；
2. digging a stope drift active workings less, a large amount of human resources are saved, coal working face time is reduced, alleviates and adopt
Pick work continues nervous problem；
3. eliminating section coal pillar, using manually concrete wall construction is constructed, no coal pillar mining is fully achieved, coal is improved and returns
Rate is adopted, fully develops the coal resources of preciousness；
4. the mid-board of the artificial wall of concrete is using setting resistance wall body displacement deformation carriage and level side in mid-board
To two big system of pretensioned prestressing anchor, there is provided the rigidity and compactness of interval wall higher, well support and
Safeguard the stability of roof and floor, preferably resist lead abutment pressure still keeps with the multiple mining influence for adopting rear surge pressure
Wall stability, reduces spontaneous fire；
5. concrete perfusion eliminates frame template and form removal using ∏ types filling perfusion packaged type template in mid-board
Link, reduces labor strength, saves the procedure connection time；
6. concrete pump, which sees off, to be located in gob side entry retaining, drawn by gob side entry retaining advance support self-advancing hydraulic support,
Without manually being moved by means such as jacks, reduce labor intensity, improve effect, it is simple to operate, securely and reliably.
7. by the implementation of the present invention, whole wall and roof and floor are combined integral, efficiently control roadway surrounding rock
Deformation, improves the artificial wall overall stability of concrete, and safeguard work face, which is adopted rear gob side entry retaining and successfully stayed, to be set, safe and practical.
Brief description of the drawings
Fig. 1 is that the present invention uses tunneling method plane arrangement structure schematic diagram for the moment；
Fig. 2 is the plane arrangement structure schematic diagram when present invention uses tunneling method two；
Fig. 3 is the C-C sectional schematic diagrams of the front schematic view of concrete section to be filled of the present invention, Fig. 1 and Fig. 2；
Fig. 4 is the D-D sectional schematic diagrams of the front schematic view for having filled concrete section of the invention, Fig. 1 and Fig. 2；
Fig. 5 is the A-A sectional schematic diagrams of Fig. 3；
Fig. 6 is the B-B sectional schematic diagrams of Fig. 3；
Fig. 7 is the three dimensional structure diagram of ∏ types filling perfusion packaged type template of the present invention.
In figure：1st, anchor cable, 2, top anchor pole, 3, top plate net, 4, side anchor pole, 5, side portion's net, 6, top plate reinforcement anchor pole, 7,
Bottom plate reinforcement anchor pole, 8, top plate reinforcement armature boring, 9, bottom plate reinforcement armature boring, 10, top plate reaming,
11st, bottom plate reaming, 12, top bottom docking casing, 13,Type reinforcing rib, 14, tie wire, 15, laterally strengthen lacing wire, 16, first
Screw thread lacing wire, 17, pretensioning tendon bush, 18, pretensioning muscle anchorage or nut, 19, grout cover piece, 20, reinforce in mid-board
Net, 21, ∏ types filling perfusion packaged type template, 21-1, formwork sides, 21-2, template front, 22, injected hole, 23, unidirectional
Into slurry baffle, 24, formwork sides to perforation, 25, hanging iron wire, 26, poured mid-board, 27, gob side entry retaining advance support from
Shifting formula hydraulic support, 28, mid-board advance support self-advancing hydraulic support, 28-1, roof and floor support very heavy, 28-2, bottom branch
Fagging, 28-3, template cross directional stretch are very heavy, 28-4, pushing tow, 28-5, top support plate, and 29, packaged type scrapper conveyor, 30, row
Cash adhesive tape conveyor, 31, horizontal lacing wire rib, 32, longitudinal lacing wire rib, 33, development machine, 34, docking Short bolt, 35, gob side entry retaining,
36th, crossheading, 37, mid-board, 38, the face of adopting of continuing, 39, treat mining face, 40, template door.
Embodiment
The gob side entry of no coal pillar mining stay set to undergo digging tunnel, pick after stability of the roadway, the advanced branch pressure-bearing of back production
Force-disturbance influence, back production rear abutment pressure peak value, adopt five stages such as rear pressure recovery, " gob side entry retaining in the U-shaped ventilation of the present invention
+ mid-board+crossheading " once tunnels Liu Sheshuan lanes and method for protecting support, and the artificial coal column of concrete, back production crossheading by gob side entry retaining, lane are regarded
Dug in the lump for an entirety, use, return using gob side entry retaining as blowdown air way road during driving during face crossheading driving is adopted
Assistant conveyance tunnel during adopting also as neighbouring crossheading uses, and gob side entry retaining is left in next section coal mining stage, as
Back production crossheading uses.
" gob side entry retaining+mid-board+crossheading " once tunnels the specific of Liu Sheshuan lanes and method for protecting support in the U-shaped ventilation of the present invention
The practice is, in support in gateway of coal mining face phase of boring, to the specific arrangement of tunnelling：One point will be used after a tunnel initating
The mode of setting is stayed in two tunnel, and side is crossheading, opposite side is gob side entry retaining, and gob side entry retaining and crossheading are referred to as double lanes, immediately following the palm
Single lane is divided into double lanes by sub- face by mid-board thereafter, the artificial coal column supporting of placing concrete between double lanes, 1~3 development machine driving, one
Resistance wall body displacement deformation carriage and horizontal direction is set first to open in adhesive tape conveyor discharge refuse, U-shaped draft type, mid-board
Two big system of method prestress anchoraging device, can both limit be subjected to displacement between interval wall and roof and floor with the changing of the relative positions, improve wall it is whole
Body intensity, improve ability, the firm performance of reinforcing wall that the resistant slide of wall deforms, and branch is adopted particularly during back production
Bearing capacity influences the deflection deformation and dislocation sliding for effectively preventing wall both sides from occurring under stress effect uneven with top plate, greatly
Big control roof and floor and the deformation of portion of side, ensure tunnel useful area；During double lanes are tunneled, crossheading and gob side entry retaining are by face
Communication channel the drawbacks of constituting U-shaped draft type, overcoming the ventilation of only head.Interval wall is constructed between double lanes as the artificial coal of concrete
Column, gob side entry retaining can use during upper one is adopted face exploitation as assistant conveyance tunnel, can conduct when next face is exploited
Crossheading uses, and mid-board constitutes the roadside support wall of gob side entry retaining.
The key issue of the present invention in embodiment depends on the method for protecting support and support process that the artificial coal column of concrete is chosen, edge
Kong Liu lanes are under multiple mine pressure disturbing influence, it is ensured that gob side entry retaining can resist tunnel mining pressure, without repairing still
It can be continuing with, ensure the production of working face normal continuance.
One embodiment of the present of invention is further described below in conjunction with attached drawing：
As shown in Fig. 3, Fig. 4 the present invention once tunnel in Liu Sheshuan lanes and method for protecting support " gob side entry retaining+mid-board+
Crossheading " concrete section to be filled and the positive deployment scenarios for having filled concrete section, show that the present invention once tunnels Liu Sheshuan lanes in Fig. 5, Fig. 6
In " advance support section, concrete section to be filled and filled concrete section " each component Standard side arrangement situation, show in Fig. 1, Fig. 2
Go out " gob side entry retaining+mid-board+crossheading " of the invention and once tunneling plane arrangement structure deployment scenarios in Liu Sheshuan lanes.
Tunnelling section shown in figure is rectangular cross section, from stopping adopting line to complete along tunnelling direction between open-off cut
Long arrangement, will once dig tunnel and " one-to-two " form is used from lane, and interval wall 37 is set among digging laneway, left
Side is back production crossheading 36, and right side is the crossheading that gob side entry retaining 35 is next section stope, and side digging back is pressed
Arranged according to anchor rete cord, i.e. anchor cable 1+ tops anchor pole 2+ top plates net 3, roadway's sides lay anchor web form, that is, help anchor pole 4+ sides portion's net 5.
Mid-board 37 is as back production crossheading 36 and 35 side roadside support structure of gob side entry retaining, common branch support in the middle part of tunnel
Plate is pressed.
The direction of section C-C and section D-D are to be directed toward open-off cut from stopping adopting line, the direction of section A-A and section B-B be from
Gob side entry retaining 35 is directed toward crossheading 36.
As shown in Figures 1 to 7, in U-shaped ventilation of the invention " gob side entry retaining+mid-board+crossheading " once driving stay set it is double
Outside lane supporting construction, including the bolt-mesh-anchor support of gob side entry retaining 35 and crossheading 36, predominantly interval wall body structure, interval wall 37
Structure includes cloth resistance wall body displacement deformation carriage system, horizontal direction pretensioned prestressing anchor system, interval
Reinforcing network 20 and the concrete of perfusion within the walls, wherein resistance wall body displacement deformation carriage system is by top plate reinforcement anchor pole
6th, bottom plate reinforcement anchor pole 7, top plate reinforcement armature boring 8, bottom plate reinforcement armature boring 9, top plate reaming 10, bottom
Plate reaming 11, top bottom docking casing 12,Type reinforcing rib 13, tie wire 14 and horizontal reinforcement lacing wire 15 are formed；Horizontal direction
Pretensioned prestressing anchor system includes first first opening screw thread lacing wire 16, pretensioning tendon bush 17, pretensioning muscle anchorage or spiral shell
Mother 18, grout cover piece 19 and docking Short bolt 34 are formed.
Resistance wall body displacement deformation carriage system can effectively act as limitation mid-board occurred level direction cracking and
It is subjected to displacement between deformation and interval wall and roof and floor and the changing of the relative positions, raising mid-board integral strength, improvement wall resistant slide deforms
Ability.
The filled wall Ultimate Tensile adaptability to changes of generally use is limited, and tensile zone easily occurs under overlying strata mining pressure
The rigidity of concrete cracking and " playing bag " phenomenon integrated member is small and amount of deflection is big, causes to fill the deformation increase of portion of side, even destroys
Deepen, in order to overcome the too early crack of common filled wall and inner steel bar compatibility of deformation is inconsistent, the disadvantage that can not play a role
End, the present invention use pretensioned prestressing anchor system, make mid-board entirety concrete internal structure tension, by first opening spiral shell
Horizontal direction stretching force is given in line lacing wire in advance, the reverse contraction elasticity of reinforcing bar is applied to concrete so that in mid-board body
Concrete be subject to a pretension action of compressive stress, it is produced certain crimp, partition wall body is subject to mining pressure in the middle
After effect, the elongation strain for the region generation that is stressed is cancelled out each other with compression strain first, then in the increasing with mining pressure
Add, mid-board concrete is just gradually stretched, and greatly controls the deformation of portion of interval wall side, effectively improves interval wall entirety structure
Part rigidity, cracking performance and endurance quality, compared with common filled wall, mid-board wall of the invention have thickness it is thin,
The advantages that interface is small, material saving.
" gob side entry retaining+mid-board+crossheading " once tunnels the construction of Liu Sheshuan lanes supporting construction in the U-shaped ventilation of the present invention
Method is specific as follows：
A) 36 face of crossheading tunnels：After the completion for the treatment of a circulating process, driving face is applied using two development machines
Work, as shown in Figure 1, first using 36 development machine of crossheading driving packaged type scrapper conveyor, 29 front face, the discharge refuse stone in pick, row
Cash works by 30 assistant conveyance of adhesive tape conveyor, while carries out anchor rete cord branch to its top plate to ensure that roof fall accident does not occur for termination
Shield, and creep into top, bottom plate reinforcement armature boring 8 and top plate reaming 10 and bottom plate reinforcement armature boring 9 and bottom plate
Reaming 11, as shown in figure 3, related resin anchoring agent installs top plate reinforcement anchor pole 6 and bottom plate reinforcement in the lump after borehole cleaning
Anchor pole 7, ensures that the anchor pole end of top plate reinforcement anchor pole 6 and bottom plate reinforcement anchor pole 7 does not expose outside top plate and bottom plate, keeps away
Exempt from damage of facilities spiral thread on anchor bolt of trying to stop people from fighting each other, ensure spiral thread on anchor bolt normal use, easy to the smooth installation of later stage top bottom docking casing 12；
B) by ∏ types fill perfusion packaged type template 21 by mid-board advance support self-advancing hydraulic support 28 draw to
Designated position：Construction personnel opens template door 40 and enters inside ∏ types filling perfusion packaged type template 21, treats that mid-board is advanced
28 front bolt-mesh-anchor support of frame and top plate reinforcement anchor pole 6 and bottom plate reinforcement anchor pole 7 install and ∏ on last stage
After 21 inner concrete of type filling perfusion packaged type template reaches preset strength, first pretensioning muscle anchor is unloaded using spanner or manually
Tool or nut 18, grout cover piece 19 and docking Short bolt 34, then pressure release roof and floor supports very heavy 28-1, and relies on template horizontal
Stretch very heavy 28-3 and withstand template front 21-2 and promote mid-board advance support self-advancing hydraulic support 28 is overall to elapse forward, treat
After reaching designated position, roof and floor is propped up again and supports very heavy 28-1, makes its top support plate 28-5 bottom support plates bottom branch
Fagging 28-2 completely attaches to roof and floor and stress, and the very heavy 28-3 of template of then pulling back cross directional stretch together draws the filling perfusion of ∏ types
Packaged type template 21 reaches next stage perfusion position, and finally by pushing tow, laterally very heavy 28-4 adjusts packaged type scrapper conveyor 29
To suitable position；
C) 35 face of gob side entry retaining tunnels：Termination coal and rock, driving are tunneled using the development machine of 35 side of gob side entry retaining
Gangue can be dropped down onto directly to the corresponding packaged type scrapper conveyor 29 in lower section after machine to reprint to 36 tip position of crossheading, by adhesive tape
30 assistant conveyance of transporter is completed；
D) arrangement resistance wall body displacement deformation carriage system installation in mid-board：When ∏ types fill perfusion packaged type
Template 21 is moved to correspondence position (as shown in Figure 6), will using top bottom docking casing 12Type reinforcing rib 13 adds with top plate antiskid
Gu anchor pole 6 and bottom plate reinforcement anchor pole 7 connect, and will be symmetrically arranged using tie wire 14Type reinforcing rib 13 is bound
Together；And overlapped using horizontal 15 horizontal direction of lacing wire of strengthening with crotchType reinforcing rib 13, resistance wall body displacement deformation are slided
Dynamic apparatus system can effectively improve mid-board integral strength, improve wall resistant slide deformability；
E) reinforcing network 20 is installed in mid-board：First reinforcing network 20 in mid-board will be laid with along the inner side of formwork sides 21-1,
And the top of reinforcing network in mid-board 20 is bundled Roof anchor pole 2 by iron wire 25 or top plate net 3 is fixed, mid-board using hanging
Interior reinforcing network 20 is welded using 6 bar-mat reinforcements of Φ；
F) two big system of horizontal direction pretensioned prestressing anchor is installed：Perfusion packaged type template is filled in ∏ types
Inside 21, screw thread lacing wire 16 will first be opened by pretensioning tendon bush 17 with docking 34 phase of Short bolt to perforation 24 through formwork sides
Connect, and in 34 outer end of docking Short bolt installation grout cover piece 19 and pretensioning muscle anchorage or nut 18；
G) 18 prestress application of pretensioning muscle anchorage or nut：37 internal resistance wall displacement deformation carriage of mid-board
After the binding and installment work of reinforcing bar are ready, personnel withdraw from via template door 40, close 40 door lock of template door；It is ready for
Apply prestressing force to first opening screw thread lacing wire 16, since formwork sides 21-1 is subject to template front 21-2 and the mid-board irrigated
The restriction effect of body, applies prestressing force to pretensioning muscle anchorage or nut 18；
H) the artificial coal column of concrete is irrigated：Concrete-spouting plant is by concrete mixing plant, concrete transfer pump, concrete transfer pipeline etc. one
Complete equipment is completed, and equipment concrete transfer pump selects HBMG30/9-45S antiexplosive concretes pump, and pipeline nominal diameter is DN100mm, mixes
Solidifying soil mixing station selects MJZC150 mine concrete mixers, which is located in gob side entry retaining, is propped up in advance by gob side entry retaining
Shield self-advancing hydraulic support 27 is drawn, and is followed ∏ types filling perfusion packaged type template 21 closely and is moved construction, pump concrete passes through
The injected hole 22 of ∏ types filling perfusion packaged type template 21 irrigates concrete mid-board, prevents slurries from pouring in down a chimney back concrete during perfusion
Delivery pipe, installs unidirectionally into slurry baffle 23 at its injected hole 22, can make concrete slurries " only import but no export "；Treat that concrete strength reaches
After regulation requires, guarantee is first opened when having enough cohesive forces between screw thread lacing wire 16 and concrete, and dismounting docking Short bolt 34, first open
Lacing wire anchorage or nut 18 and grout cover piece 19, after ∏ types filling perfusion packaged type 21 to next stage of template to be moved, then
Pretensioning muscle anchorage or nut 18 and supporting plate etc. are reinstalled, which does not influence ∏ types filling perfusion packaged type template
21 normal shifting frame, ∏ types of trying to stop people from fighting each other filling perfusion packaged type template 21 to next perfusion position are completed once to irrigate to have poured
The filling operation face of mid-board 26；Gob side entry retaining advance support self-advancing hydraulic support 27 is moved to subsequent processing position；
I) propulsion of driving face development machine 33 is followed：Repeat above-mentioned step to gather, complete a pile and connect in having poured an of pile
The filling perfusion work of partition wall 26, by arranging resistance wall body displacement deformation carriage system by roof and floor country rock in mid-board
Body intactly combines to form an overall structure with interval wall, and passes through horizontal direction pretensioned prestressing anchor system
Effectively constrain and limit shearing, tensile failure and the deformation of country rock.
Claims (8)
1. a kind of once tunnel Liu Sheshuan lanes digging operation production line, it is characterised in that single when support in gateway of coal mining face is tunneled
It is crossheading that single lane is divided into side by the mid-board (37) of the artificial coal column supporting of placing concrete immediately following face rear portion after the digging of lane
(36), opposite side is (35) two tunnels of gob side entry retaining, and development machine, adhesive tape discharge refuse transporter are set in two tunnels；Described
Face rear portion is equipped with the lane that connects of connection crossheading and gob side entry retaining, crossheading (36), gob side entry retaining (35) and connects the common structure in lane
Into U-shaped ventilation, setting advance support automatic moving type template hydraulic pressure is tried to stop people from fighting each other suspension device in connection lane, advance support automatic moving type template liquid
Suspension device rear end of trying to stop people from fighting each other is pressed to be docked with mid-board；Advance support automatic moving type template hydraulic pressure try to stop people from fighting each other suspension device include ∏ types filling
Irrigate packaged type template (21), mid-board advance support self-advancing hydraulic support (28) and packaged type scrapper conveyor (29)；∏
Type filling perfusion packaged type template (21) is included positioned at the formwork sides (21-1) of side and positioned at template front above
(21-2), formwork sides (21-1) be equipped with unidirectionally into slurry baffle (23) injected hole (22), template front (21-2) on
Equipped with template door (40).
2. according to claim 1 once tunnel Liu Sheshuan lanes digging operation production line, it is characterised in that the ∏ types
Reinforcing network (20) in mid-board built in filling perfusion packaged type template (21), and back is suspended to by hanging iron wire (25)
Anchor net or anchor pole on.
3. according to claim 2 once tunnel Liu Sheshuan lanes digging operation production line, it is characterised in that the interval
Reinforcing network (20) is plastic wire or web or bar-mat reinforcement or steel fiber net within the walls.
4. according to claim 1 once tunnel Liu Sheshuan lanes digging operation production line, it is characterised in that the interval
The carriage of resistance wall body displacement deformation and horizontally arranged prestress anchoraging device are set in wall (37).
5. according to claim 4 once tunnel Liu Sheshuan lanes digging operation production line, it is characterised in that the resistance
The carriage of wall displacement deformation adds including top plate reinforcement anchor pole (6), bottom plate reinforcement anchor pole (7), top plate antiskid
Gu armature boring (8), bottom plate reinforcement armature boring (9), top plate reaming (10), bottom plate reaming (11), top bottom docking casing
(12)、Type reinforcing rib (13), tie wire (14) and laterally reinforcement lacing wire (15)；Top plate reinforcement anchor pole (6), top plate
Reinforcement armature boring (8), the corresponding mid-board (37) of top plate reaming (10) are arranged on top plate；Bottom plate reinforcement anchor pole
(7), bottom plate reinforcement armature boring (9), the corresponding mid-board of bottom plate reaming (11) are arranged on bottom plate；Type reinforcing rib
(13) more than one piece, more than one piece are arranged toType reinforcing rib (13) is symmetrically vertically arranged and is fixed by tie wire (14), and more
PartType reinforcing rib (13) docks casing (12) and top plate reinforcement anchor pole (6) and bottom plate reinforcement anchor pole by pushing up bottom
(7) connect；Laterally strengthening lacing wire (15), laterally hook is fixed atBetween type reinforcing rib (13).
6. according to claim 4 once tunnel Liu Sheshuan lanes digging operation production line, it is characterised in that the level
The prestress anchoraging device that direction is set is pretensioned prestressing anchor, including first opens screw thread lacing wire (16), pretensioning muscle
Casing (17), pretensioning muscle anchorage or nut (18), grout cover piece (19) and docking Short bolt (34)；First open screw thread lacing wire (16)
Horizontally disposed, the both ends for first opening screw thread lacing wire (16) pass through pretensioning tendon bush (17) and docking through formwork sides (21-1)
Short bolt (34) connects, and docking Short bolt (34) is fixedly mounted by grout cover piece (19) and pretensioning muscle anchorage or nut (18)
On formwork sides (21-1).
7. the once driving Liu Sheshuan lanes digging operation production line according to claim 1 or 4, it is characterised in that along sky
Stay and gob side entry retaining advance support self-advancing hydraulic support (27) or individual prop or steel arch shed shoring are set in lane (35).
8. the once driving Liu Sheshuan lanes digging operation production line according to claim 1 or 4, it is characterised in that described
The longitudinal section of mid-board (37) is rectangle or trapezoidal or micro- domes.
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| CN201610459072.1A CN105937400B (en) | 2016-06-22 | 2016-06-22 | It is a kind of once to tunnel Liu Sheshuan lanes digging operation production line |
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| CN105937400B true CN105937400B (en) | 2018-05-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578532A (en) * | 2019-09-02 | 2019-12-17 | 辽宁工程技术大学 | Gob-side entry retaining arrangement method |
| CN111691886B (en) * | 2020-06-23 | 2021-08-31 | 国家能源集团宁夏煤业有限责任公司 | Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face |
| CN112593938A (en) * | 2020-12-09 | 2021-04-02 | 中国矿业大学 | Intelligent mining-based large-section roadway prefabricated wall body coal-pillar-free mining method |
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| CN1281933A (en) * | 1999-07-21 | 2001-01-31 | 刘兴才 | Mining area roadway support and its process |
| CN202370529U (en) * | 2011-12-26 | 2012-08-08 | 中铁四局集团有限公司 | Tunnel face reinforced structure inside cabin of shield machine |
| CN202391447U (en) * | 2011-12-14 | 2012-08-22 | 中铁十二局集团第二工程有限公司 | Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel |
| CN104564102A (en) * | 2014-11-23 | 2015-04-29 | 史法战 | Tunnel lining concrete grouting device |
| CN104763434A (en) * | 2015-01-31 | 2015-07-08 | 太原理工大学 | Non-coal-pillar double tunneling method |
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2016
- 2016-06-22 CN CN201610459072.1A patent/CN105937400B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281933A (en) * | 1999-07-21 | 2001-01-31 | 刘兴才 | Mining area roadway support and its process |
| CN202391447U (en) * | 2011-12-14 | 2012-08-22 | 中铁十二局集团第二工程有限公司 | Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel |
| CN202370529U (en) * | 2011-12-26 | 2012-08-08 | 中铁四局集团有限公司 | Tunnel face reinforced structure inside cabin of shield machine |
| CN104564102A (en) * | 2014-11-23 | 2015-04-29 | 史法战 | Tunnel lining concrete grouting device |
| CN104763434A (en) * | 2015-01-31 | 2015-07-08 | 太原理工大学 | Non-coal-pillar double tunneling method |
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