CN106401631B - Advance timbering and method for protecting support under a kind of dead-soft country rock - Google Patents
Advance timbering and method for protecting support under a kind of dead-soft country rock Download PDFInfo
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- CN106401631B CN106401631B CN201610790216.1A CN201610790216A CN106401631B CN 106401631 B CN106401631 B CN 106401631B CN 201610790216 A CN201610790216 A CN 201610790216A CN 106401631 B CN106401631 B CN 106401631B
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- 239000011435 rock Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005553 drilling Methods 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 165
- 229910052742 iron Inorganic materials 0.000 claims description 79
- 239000003245 coal Substances 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 240000000491 Corchorus aestuans Species 0.000 claims description 3
- 235000011777 Corchorus aestuans Nutrition 0.000 claims description 3
- 235000010862 Corchorus capsularis Nutrition 0.000 claims description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 238000005065 mining Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
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- 238000005336 cracking Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
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- 239000003795 chemical substances by application Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
- E21D23/10—Advancing mechanisms with advancing devices separate from the supporting construction
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses the advance timbering under a kind of dead-soft country rock, including roof timbering body and bottom plate prop；The roof timbering body includes advanced hydraulic support (1), cylinder pressure-bearing row (2), board-like pressure-bearing baffle (4) and a formula and holds funnel (5), the rear end of the board-like pressure-bearing baffle (4) is connected with the front end of the top beam of the advanced hydraulic support (1), and the rear end that the front end of the board-like pressure-bearing baffle (4) holds funnel (5) with described formula is connected；The bottom plate prop includes bearing block (9), anti-drilling bottom baffle (10) and guide plate (11), the bearing block (9) is connected with the front end of the pedestal of advanced hydraulic support (1), and the fixing groove (12) of up/down perforation is provided in the middle part of the bearing block (9).Installation cost of the present invention is low, reliable and practical, easy to operate.
Description
Technical field
The present invention relates to coal mine roadway advance support field, more particularly to the advance timbering and branch under a kind of dead-soft country rock
Maintaining method.
Background technology
China《Safety regulations in coal mine》Clear stipulaties:The scope of coal working face crossheading advance support cannot be less than 20m.It passes
System Mining Face in Mining Area crossheading is generally adopted by hydraulic prop and makees advance support, with fully-mechanized mining working mechanization journey
The continuous improvement of degree, this support pattern is difficult to match with the production model of fully-mechanized mining working high-yield and high-efficiency, and this branch
There are the shortcomings of supporting intensity is low, labor strength is big, support speed is slow for shield mode.In order to solve these problems, coal section is total
The equipment manufacturings such as Taiyuan branch of institute, ZhengZhou mine machine Group Co., Ltd have developed the advance support liquid of different model
Press stent.These forepoling hydraulic supports meet the requirement of mine safety, high-yield and high-efficiency to a certain extent.But advanced branch
Hydraulic support is protected when moving frame, is required for taking drop frame, tries to stop people from fighting each other (or push bracket), rises frame, adjustment, then drop frame and rise the actions such as frame.
All there is repeatedly the technological deficiency of roof supporting, this has very havoc to the stability and integrality of top plate, can be to rear
Continuous to move frame, supporting and safe working bring very big hidden danger.Can thus it succeed for caterpillar track travelling forepoling hydraulic support
The support repeatedly for avoiding top plate crush.But sliding friction caused by such moving manner serious can influence the stent
Service life, and the defects of forward resistance is larger, walking is extremely unstable can be brought, easily the safety to tunnel personnel causes to endanger
Evil.
For all current traditional advance timberings, mostly using shifting frame structure is promoted, promotion moves frame and can cause
The problems such as cantilever deflections, stent rollover and moving difficulty.
These problems are all relative connections, and a Resolving probiems are bad, other the problem of will progressively highlight, it is right
Safety of mining causes great hidden danger, this invention address that system related asking of solving that advance timbering top plate and bottom plate occur
Topic.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of poles simple in structure, at low cost, easy to operate, reliable and practical
Advance timbering under soft country rock.
The present invention also provides a kind of methods that advance timbering using under the dead-soft country rock carries out supporting.
Advance timbering under a kind of dead-soft country rock, including roof timbering body and bottom plate prop；
The roof timbering body includes advanced hydraulic support and cylinder pressure-bearing is arranged, and the cylinder pressure-bearing row is by multiple cylinders
Idler wheel is sequentially connected in series, and the cylinder pressure-bearing row is arranged between the top beam and back of the advanced hydraulic support；Institute
State the length of cylindrical roller and advance timbering equivalent width, a diameter of 62mm；
Top beam backplate before the front end of the top beam of the advanced hydraulic support is provided with, rear end is provided with rear top beam backplate；Institute
Top beam backplate includes board-like pressure-bearing baffle before stating and a formula holds funnel, rear end and the advanced liquid of the board-like pressure-bearing baffle
The front end of the top beam of stent is pressed to be connected, the front end of the board-like pressure-bearing baffle is connected with the rear end that described formula holds funnel；
Described formula holds funnel as strip, and cross section is spoon shape structure, containing tank including opening upwards and opens
The downward arc connecting portion of mouth；Described formula, which holds funnel, includes multiple spoon shape structure reinforcing bars being arranged in parallel, multiple spoons
The strip reinforcement welding that shape structure reinforcing bars are arranged in parallel by 3 is fixed together；
The back is broken coal seam, and anti-stone baffle is provided on the arc connecting portion；The anti-stone baffle
It is made of hold-down bars, plane holder and high-intensity resin plate, the hold-down bars totally two, the bottom of the hold-down bars is fixed on described
The both sides of arc connecting portion, the top of the hold-down bars and the middle part of the plane holder are welded, and plane holder grips the height
Intensity resin plate；
The hold-down bars be rod iron, a diameter of 12mm；Distance of the top of the high-intensity resin plate apart from back
For 60mm-100mm, the wide equivalent width with the advanced hydraulic support, plane is pushed up with tunnel where the high-intensity resin plate
Angle between plane where plate is 30 °.
The bottom plate prop includes bearing block, anti-drilling bottom baffle and guide plate, the bearing block and advanced hydraulic support
The front end of pedestal be connected, the fixing groove of up/down perforation is provided in the middle part of the bearing block, is provided in the fixing groove
The guide plate, the anti-drilling bottom baffle are arc panel, and lower end is connected with the front end of the bottom of the bearing block, the arc
It is protruded to the lower part of the direction of advance of the advanced hydraulic support at the middle part of plate；
The guide plate includes the 3rd fixed plate and the cutting part for being connected to the 3rd fixed plate bottom, in the fixation
The both sides of the length direction of slot are respectively arranged with the 4th fixed plate, pin hole are provided in the 4th fixed plate, described
Mounting hole is provided in 3rd fixed plate, wherein the mounting hole is consolidated the 3rd fixed plate by bolt with the pin hole
It is scheduled in the 4th fixed plate；The cutting part is cutter, and knife spine is connected with the bottom of the 3rd fixed plate, the cutter
The bottom of rear end and the front end of the knife spine be connected to form the blade of arc；
Roadway floor is dead-soft bottom plate, and uniaxial compressive strength is allowed to be less than 7.50MP, the mounting hole and the cutting part
The distance between lowermost end be H+280mm, H is advance timbering base thickness, unit mm.
Advance timbering under dead-soft country rock of the present invention, wherein, the axis direction of the cylindrical roller with it is described
The direction of advance of advanced hydraulic support is perpendicular；It is outward extended with a circle respectively at the center at the both ends of the cylindrical roller
The iron of cylindricality, the outer end of the iron have helicitic texture and with the matched fixing nut of the helicitic texture；
The first connector or the second connector are provided on first iron with the last one cylindrical roller,
The first connector and the second connector are both provided on the iron of other cylindrical rollers；
First connector includes a head rod and two are separately fixed at the head rod both ends
First sleeve, the first sleeve are the hollow cylindrical of both ends open, and the internal diameter of the first sleeve is more than the iron
Diameter, one of them described first sleeve are set on the iron, another described first sleeve is set in previous cylinder
On the iron of shape idler wheel；
Second connector includes second connecting rod and two are separately fixed at the second connecting rod both ends
Second casing, second casing are the hollow cylindrical of both ends open, and the internal diameter of second casing is more than the iron
Diameter, one of them described second casing are set on the iron, another described second casing is set in the latter cylinder
On the iron of shape idler wheel, it is sequentially connected cylinder pressure-bearing described in arrangement form and arranges.
Advance timbering under dead-soft country rock of the present invention, wherein, a diameter of 4mm of the iron, length 22mm,
Wherein, the length of the helicitic texture is 4mm；The outer diameter of the first sleeve and second casing be 7mm, internal diameter 6mm,
Length is 6mm；A diameter of 5mm of the head rod and second connecting rod, length are more straight than the cylindrical roller
The big 10mm in footpath, the outer diameter of the fixing nut is 10mm, internal diameter 4mm；The board-like pressure-bearing baffle includes bearing plate, pressure block
With the first fixed plate, the pressure block is solid squares iron block, before bearing plate includes level board and is connected to the level board
The inclined plate at end, the level board and the inclined plate are welding or integrated formed structure, are fixed at the top of the pressure block described
The front side of the bottom of level board, is fixed on the top of the advanced hydraulic support on rear side of the level board, the pressure block with
The front end of the advanced hydraulic support is in contact；The one side of the first fixed plate long side is fixed on the middle part of the inclined plate, separately
One side is fixed on the pressure block.
Advance timbering under dead-soft country rock of the present invention, wherein, described formula holds hopper level as 490mm, wide
Degree and advance timbering equivalent width, length 480mm；The thickness of the pressure block is 150mm, and length 350mm is highly
450mm；
The level board and the inclined plate are made of spring steel, and size is identical, is：Thickness is 9mm, length 680mm,
Width and advance timbering equivalent width；Angle between the inclined plate and horizontal plane is 5 °；The bottom of first fixed plate with
The distance between top of the pressure block is 80mm.
Advance timbering under dead-soft country rock of the present invention, wherein, the rear top beam backplate includes collecting tank and fixation
Device, the fixing device include the second fixed plate, and the rear end of second fixed plate is connected with the collecting tank, and described second
The forepart of fixed plate is provided with the first fixed strip band and fixing lock, and second fixed plate is fixed on the advanced hydraulic support
Top beam on；The collecting tank includes horizonal base plate and the front side board and rear baffle that are separately positioned on its front-end and back-end, described
The upper end of front side board is connected with the rear end of second fixed plate；The length of the horizonal base plate be 400mm, width 480mm,
The height of front side board is 300mm, and the height of rear baffle is 120mm, and the length of the second fixed plate is 300mm, the horizonal base plate,
The thickness of the front side board, the rear baffle and second fixed plate is 12mm.
Advance timbering under dead-soft country rock of the present invention, wherein, on the anterior-posterior horizontal direction of the anti-drilling bottom baffle
Length for 350mm, the height in upper and lower vertical direction is 400mm；The upper and lower part of the rear end of the bearing block connects respectively
It is connected to upper mounted plate and bottom plate, the front end of the pedestal of the advanced hydraulic support is fixed on described using the second fixed strip band
Between upper mounted plate and the bottom plate, the length of fixed plate is 350mm, thickness 7mm；Top 2/3rds
The shape of the cross section of 3rd fixed plate be rectangle, the shape of the cross section of the 3rd fixed plate of lower part 1/3rd
To be trapezoidal, the length of the front end of the 3rd fixed plate is less than the length of rear end.
Advance timbering under dead-soft country rock of the present invention, wherein, the anterior-posterior length of the bearing block is 430mm, wide
Degree and height and the width of the pedestal of the advanced hydraulic support and highly consistent, the anterior-posterior length of the fixing groove is 300mm,
Width is 15mm, and the distance between front end of the bearing block is for the distance between 40mm, the rear end of the bearing block
90mm；The bearing block is hinged with fixed plate, is welded and fixed with the bottom plate；The second fixed strip band is steel
Silk piece or molding long iron block.
Advance timbering under dead-soft country rock of the present invention, wherein, the anterior-posterior length of the guide plate is 290mm, wide
Degree the widest part is 13mm, and most narrow place is 3~4mm, is highly 600mm；3rd fixed plate described in the centre distance of the mounting hole
Front end distance for 150mm, the distance of rear end is 140mm, a diameter of 25mm of the mounting hole；The diameter of the pin hole
For 12mm, a diameter of 10mm of the bolt.
The method that supporting is carried out using the advance timbering under dead-soft country rock of the present invention, is included the following steps：
(A) cylindrical roller, fixing nut, the first connector, the second connector, the preceding top beam backplate arranged cylinder pressure-bearing
Underground advance support region is transported to rear top beam backplate；
By guide plate, bearing block and anti-drilling bottom baffle are transported beside advanced hydraulic support, in advanced hydraulic support pedestal
The ditch of a depth 20mm is excavated in front end slightly, and the bottom plate of bearing block is gradually inserted along below the pedestal of advanced hydraulic support
Enter, be inserted at least 500mm, when resistance is larger to be pushed away to enter, stop manual work, personnel pass through advanced hydraulic pressure away from stent
Stent moves frame, and bearing block is progressively made to reach the front end of advanced hydraulic support pedestal；Stop moving frame, all around beaten and held with iron hammer
Pouring weight makes it front and rear and aligns with pedestal or so, make before and after it is parallel with pedestal closely；
(B) iron of each cylindrical roller installs the first connector and the second connector, and connection forms cylinder pressure-bearing
Row has just started cylinder pressure-bearing row and has been installed to 4m, wherein, first cylindrical roller both sides only needs installation one first per side
Connector or the second connector, to connect cylindrical roller below, when first cylindrical roller rolls out advanced hydraulic pressure branch
After frame, fixing nut can be unscrewed, is connected to before advanced hydraulic support, take over use；When installing for the first time, advanced hydraulic pressure branch
Frame front pillar pressure release makes top beam front end depart from top plate 70-80mm, stops pressure release, the level board of bearing plate is inserted into advanced hydraulic pressure
Between stent and back, mounted cylinder pressure-bearing row is filled in into the gap between top plate and top beam；
(C) upper mounted plate is rotated to above bearing block, is connected upper mounted plate and bottom plate by the second fixed strip band
It connects and is tightened；Guide plate is put into, guide plate is pounded in front of moving direction, with iron hammer in the edge of a knife direction of the bottom of guide plate
To the corresponding position of mounting hole, bolt is inserted into, Fixed latches, on rear side of fixing groove and ground that the left and right sides is contacted with guide plate
Side fills in a small amount of burlap or jute, reduces the hard contact between iron block, guide plate is made in the gap for reducing 2mm to the greatest extent
Into steering error；
(D) not stand people beside stent within 3m, and top plate leakage cash is hurted sb.'s feelings when preventing from moving frame, is checked in front of advanced hydraulic support
Situation, it is ensured that shifting frame path is flat, starts to promote jack, sliding advance of support；When cylinder pressure-bearing, row is just rolled to advance timbering
When in the middle part of top beam, to advanced hydraulic support rear pillar pressure release, top beam rear end is made to depart from back 70-80mm, stops pressure release,
Second fixed plate of fixing device is inserted between advanced hydraulic support and back, the first fixed strip band is tied up in stent
Top beam rear end is locked using fixing lock, and second fixed plate and collecting tank are fixed on to the top beam of the advanced hydraulic support
Afterwards；
(E) when needing steering or adjustment direction, stop moving frame, manually beat pressure block one side with iron hammer, make pressure-bearing
The pan frontward end of block and advanced hydraulic support forms small crack, fills in an appropriate number of small size standard iron block, small using one piece
The rotation angle of number standard iron block is 2 °, places particular number as needed；When quantity is more than 3 pieces, using large size standard iron
Block, the angle of formation is 6 °；The length and width of the trumpet standard iron block and high respectively 150mm, 15mm and 150mm, the large size
Standard iron block is trapezoidal, length 300mm, and the width of upper end is 31mm, and the width of lower end is 47mm, a height of 150mm；
(F) first use is completed, column pressure value before and after adjusting makes front and rear column pressure suitable with original normal pressure value,
Ensure that set cap is parallel with back, supporting is stablized；
(G) using advanced hydraulic support, often advance 2m is a Xun Huan, and often advance 2m, by cylinder extra in horizonal base plate
Idler wheel removes, and gets front and installs, and such 2m is a Xun Huan.
Advance timbering difference from prior art under dead-soft country rock of the present invention is：
In conventional method, when the advance of the face, advanced hydraulic support is also required to forward impelling, in the process of this propulsion
In, be first pressure release, when top beam and the back of stents depart from certain distance, forward impelling, promote certain distance and then
Stent is jacked up, because stent, during passage, route can't be walked according to straight line, also needs to adjust, pressure release again,
Guarantee will not be pressed onto the support anchor rod and anchor cable of top plate.So roof cracking is serious during this, to the coal mining in later stage
Very big hidden danger is left, roof cracking can cause the leakage of gas, water gas etc., when particularly stent moves below, have substantial amounts of
Top plate rubble etc. is caving, and a large amount of unnecessary influences and some potential safety problems are caused on safety in production.
The improved roof timbering body of the present invention is laid with cylinder pressure-bearing row between top plate and set cap, so can be with rolling
The form of dynamic friction is directly with pressure, by jack from promoting stent below, such stent there is no need to pressure release repressurization,
Direct such forward impelling, hardly causes top plate any destruction.Apparatus structure of the present invention is simple, at low cost, behaviour
Make easy, reliable and practical.
Traditional advance support rack much needs to set anchor point of trying to stop people from fighting each other, and sets anchor point tedious process, and efficiency is low
Under, it can not realize fast and safely advanced hydraulic support passage；Existing advance support rack mostly using shifting frame structure is promoted, promotes
Mobile deflection and moving difficulty can be caused by moving frame, largely influence coal mining efficiency and Safety of Coal Mine Production work.
The present invention is safe, practical, simple and reliable for the guider of the prop of dead-soft back-plane design, improves coal mining
Efficiency and the safety in production in colliery.
The bracket base of the field experience surface overwhelming majority breaks away and frame is all to be happened to move during frame, it is therefore desirable to
Act as a planted agent before frame is moved, anchor point be set, is bit by bit pulled forward, need to rearrange after stent offset basic point use it is very heavy
Pushing tow returns, such stent be difficult again settle at one go return to original position, while when stent is toppled near end be and
Its danger, the guider of advance timbering pedestal of the present invention ensure that stent is moved according to predetermined paths, and guide plate, which is combined, to be held
Pouring weight has the function of preventing that pedestal from sliding, and pedestal is stablized, and moves frame security and greatly improves, while the configuration of the present invention is simple is reliable,
Practicality, it is strong for this simple structural reliability of the geological environment of underground complexity, it is highly practical, substantially increase coal mining efficiency
With the safety in production in colliery.
It is what is designed under the conditions of loose roof the present invention be directed to back, including soft rock, broken coal and crushes
Overlying strata rubble etc., the distance of the top of high-intensity resin plate apart from back is 60mm-100mm, and entire distance ensures high
Intensity resin plate will not both touch rubble, and unnecessary active is caused to be touched, and plane where high-intensity resin plate is pushed up with tunnel
Angle between plane where plate is 30 °, and can guarantee that high-intensity resin plate can guarantee that cylinder pressure-bearing is come into top plate and top
It will not be influenced before beam be subject to top rubble and soft rock etc., ensure that the stable operation of whole device, while high-intensity resin
Material also ensures that plate will not be subject to too lossy in itself, will not cause the hidden danger such as spark, entire design rationally, it is reliable and
Stablize.
The advance timbering under the dead-soft country rock of the present invention is described further below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structure diagram of the advance timbering under dead-soft country rock of the present invention；
Fig. 2 is the structure diagram of cylindrical roller in the present invention；
Fig. 3 is the structure diagram of the preceding top beam backplate in the present invention；
Fig. 4 holds the overlooking the structure diagram of funnel for the formula in preceding top beam backplate；
Fig. 5 is the structure diagram of the rear top beam backplate in the present invention；
Fig. 6 is the structure diagram of the bottom plate prop in the present invention；
Fig. 7 is the overlooking the structure diagram of bottom plate prop of the present invention；
Fig. 8 is overlooking the structure diagram of the bottom plate prop of the present invention under turn condition；
Fig. 9 is the structure diagram of the small size standard iron block of apparatus of the present invention in use；
Figure 10 is the structure diagram of the large size standard iron block of apparatus of the present invention in use.
Specific embodiment
Embodiment 1
As shown in Fig. 1~Figure 10, the advance timbering under a kind of dead-soft country rock, including roof timbering body and bottom plate prop,
Roof timbering body includes advanced hydraulic support 1 and cylinder pressure-bearing row 2, and cylinder pressure-bearing row 2 is gone here and there successively by multiple cylindrical rollers 201
Join, cylinder pressure-bearing row 2 is arranged between the top beam of advanced hydraulic support 1 and back 3, the cylindrical roller 201
It is rolled when advanced hydraulic support 1 advances；Cylinder pressure-bearing row is laid between the top beam of back 3 and advanced hydraulic support 1
2, it so can be in the form of rolling friction directly with pressure, by jack from advanced hydraulic support 1 is promoted below, so
There is no need to pressure release repressurization, direct such forward impelling hardly causes any destruction to back 3.Support width
In terms of 450mm, the length of cylindrical roller 201 is 450mm, a diameter of 62mm, and too small, top plate may directly connect with top beam
It touches, can not play the effect of rolling friction, the gap between too big pressure-bearing cylinder can also increase, and top plate rubble is trapped into, can
Pressure-bearing cylinder can be caused not rotate, can not also play the effect of sliding friction, thus this size be it is relatively reasonable and
Science.
Top beam backplate before the front end of the top beam of advanced hydraulic support 1 is provided with, rear end is provided with rear top beam backplate；Preceding top beam
Backplate includes board-like pressure-bearing baffle 4 and a formula holds funnel 5, the rear end of board-like pressure-bearing baffle 4 and the top beam of advanced hydraulic support 1
Front end be connected, the rear end that the front end of board-like pressure-bearing baffle 4 holds funnel 5 with formula is connected；
Formula holds funnel 5 as strip, and cross section is spoon shape structure, containing tank 501 including opening upwards and opens
The downward arc connecting portion 502 of mouth；Formula, which holds funnel 5, includes multiple spoon shape structure reinforcing bars being arranged in parallel, multiple spoon shape knots
The strip reinforcement welding that structure reinforcing bar is arranged in parallel by 3 is fixed together；
Back 3 is broken coal seam, and anti-stone baffle 8 is provided on arc connecting portion 502；Anti- stone baffle 8 is by fixing
Stick 801, plane holder 802 and high-intensity resin plate 803 form, and hold-down bars 801 totally two, the bottom of hold-down bars 801 is fixed on arc
The both sides of shape connecting portion 502, the top of hold-down bars 801 are welded with the middle part of plane holder 802, and plane holder 802 grips high-strength
Spend resin plate 803；Hold-down bars 801 be rod iron, a diameter of 12mm；The top of high-intensity resin plate 803 apart from back 3 away from
From for 60-100mm, the wide equivalent width with advanced hydraulic support 1,803 place plane of high-intensity resin plate and 3 institute of back
Angle between plane is 30 °.
The design of this anti-stone baffle 8 for being broken coal seam in top plate in the case of use, be to be directed to very much
The design of property, blocks broken coal and rubble, because being also introduced into region between the top beam of back 3 and advanced hydraulic support 1
Cylindrical roller 201 is all that the pulling force of 205 and second connecting rod 207 of head rod is needed to enter, and is all to rely on certainly after
The frictional force rotation of body, therefore need to prevent broken top coal rubble before entering and the influences such as block, otherwise head rod 205
There is the danger broken with the second connecting rod 207.It is emphasized that 60-100mm and 30 ° of the two parameter is extremely important, it is
Unique design in the case of for being broken coal seam in top plate, other parameter can not meet.
Bottom plate prop includes bearing block 9, anti-drilling bottom baffle 10 and guide plate 11, bearing block 9 and advanced hydraulic support 1
The front end of pedestal is connected, and 9 middle part of bearing block is provided with the fixing groove 12 of up/down perforation, guide plate is provided in fixing groove 12
11, anti-drilling bottom baffle 10 is arc panel, and lower end is connected with the front end of the bottom of bearing block 9, and the middle part of arc panel is to advanced liquid
Press the lower part protrusion of the direction of advance of stent 1.
Guide plate 11 includes the 3rd fixed plate 301 and the cutting part 302 for being connected to 301 bottom of the 3rd fixed plate, in fixation
The both sides of the length direction of slot 12 are respectively arranged with the 4th fixed plate 901, and pin hole 902 is provided in the 4th fixed plate 901,
It is provided with mounting hole 303 in the 3rd fixed plate 301, mounting hole 303 and pin hole 902 are by bolt by the 3rd fixed plate 301
It is fixed in the 4th fixed plate 901；Cutting part 302 is cutter, and knife spine is connected with the bottom of the 3rd fixed plate 301, after cutter
The bottom at end and the front end of knife spine are connected to form the blade of arc, mainly for incipient stage guide plate 11 can be pressed onto roadway floor
Hereinafter, guiding role is played.
Roadway floor is dead-soft bottom plate, and uniaxial compressive strength is allowed to be less than 7.50MPa, and the mounting hole 303 is cut with described
The distance between the lowermost end in portion 302 is cut as H+280mm, H is advance timbering base thickness, unit mm, it is contemplated that bottom plate is cut
Demand relation between the lateral pressure that the resistance and steering cut is provided by many experiments, is being for backplane type
In the case of dead-soft bottom plate, the size of H+280mm is most suitable, and other sizes can not be realized.
Above scheme can complete the purpose of the present invention, on this basis, have also been proposed following preferred embodiment：
The axis direction of cylindrical roller 201 and the direction of advance of advanced hydraulic support 1 are perpendicular；In cylindrical roller
The center at 201 both ends is outward extended with a cylindrical iron 202 respectively, and the trend of iron 202 is flat with cylindrical roller 201
Row, the outer end of iron 202 have helicitic texture 203 and with 203 matched fixing nut 204 of helicitic texture；
The first connector or the second connection are provided on first iron 202 with the last one cylindrical roller 201
Part is both provided with the first connector and the second connector on the iron 202 of other cylindrical rollers 201；
First connector includes that a head rod 205 and two are separately fixed at 205 both ends of head rod
Sleeve 206, first sleeve 206 are the hollow cylindrical of both ends open, and the internal diameter of first sleeve 206 is more than the straight of iron 202
Footpath, one of first sleeve 206 are set on iron 202, another first sleeve 206 is set in previous cylindrical roller
On 201 iron；
Second connector includes that second connecting rod 207 and two are separately fixed at 207 both ends of the second connecting rod
Two casings 208, the second casing 208 are the hollow cylindrical of both ends open, and the internal diameter of the second casing 208 is more than the straight of iron 202
Footpath, one of them second casing 208 are set on iron 202, another second casing 208 is set in the latter cylindrical roller
On 201 iron 202, arrangement form cylinder pressure-bearing row 2 is sequentially connected, fixing nut 204 is screwed on helicitic texture 203, it is whole
A cylinder pressure-bearing row 2 can free bend movement.
A diameter of 4mm of iron 202, length 22mm, in 206 and second casing of first sleeve of same root iron 202
There is the space of 6mm between 208, it is ensured that the two rotates freely on iron 202.The length of helicitic texture 203 is 4mm, this
The design of sample is all to make iron short as far as possible, from the influence of back protrusion or rubble outside cylinder；First sleeve
206 and second casing 208 outer diameter be 7mm, internal diameter 6mm, length 6mm；205 and second connecting rod 207 of head rod
A diameter of 5mm, length is bigger 10mm than the diameter of cylindrical roller 201, and the outer diameter of fixing nut 204 is 10mm, and internal diameter is
4mm.Diameter is small as far as possible, also for back protrusion or rubble as far as possible without impinging on iron 202, because cylinder is held
The huge pressure in top just, is completely converted into cylindrical roller 201 to undertake, iron 202 by the maximum innovative point that pressure 2 designs
Their turning effort is only undertaken, if being design bearing among cylinder, then the huge pressure of top plate can make bearing
Failure, can not play a role.So the iron 202 for not carrying pressure should be as short as possible, in order to avoid 201 outside of cylindrical roller
The protrusion of back 3 damages iron 202, at the same it is too short can not play its effect completely, therefore this size
Design is that relatively reasonable, of the invention size is all preferred design, it is not essential however to, the limit to protection domain is not formed
System, simply such effect is more preferable.
The partial cylinder pressure-bearing row 2 stacked is mainly stored in the effect that formula holds funnel 5, convenient when moving frame,
Cylinder pressure-bearing row 2 is rolled into along preceding top beam backplate between back 3 and top beam, without manually aside looking after and making
Industry.
Formula holds 5 height of funnel as 490mm, width 450mm, length 480mm；Primarily to ensure that funnel has
Certain space holds cylinder pressure-bearing row, while ensure that torque is not too large, and a formula holds funnel and can be born by some strength
The pressure that cylinder pressure-bearing row brings.
Formula is held at " spoon " of funnel 5, i.e. the inclination maximum of arc connecting portion 502 close to 80 °, it is then smooth with
Board-like pressure-bearing baffle 4 connects, and the reason for being welding therebetween, so designing is that back 3 regular can be scattered
Rubble and bastard coal etc., such angle and ribbon can allow rubble etc. to be rolled into a formula and hold in funnel 5, eventually drop to tunnel
On bottom plate, reinforcement welding also can guarantee strength demand, while reduce ventilation windage, ensure that drift section ventilation quantity.This is not
It is necessary, is preferred design, effect is more preferable.
Board-like pressure-bearing baffle 4 includes bearing plate, 403 and first fixed plate 404 of pressure block, and pressure block 403 is solid squares
Iron block, its effect are mainly the forward motive force of bearing support top beam, and board-like bearing plate 4 and a formula is then driven to hold funnel
5 move.
Bearing plate includes level board 401 and is connected to the inclined plate 402 of the front end of level board 401, level board 401 and inclined plate
402 are fixed on the front side of the bottom of level board 401, level board 401 for welding or integrated formed structure, the top of pressure block 403
Rear side be fixed on the top of advanced hydraulic support 1, pressure block 403 is in contact with the front end of advanced hydraulic support 1；First fixes
The one side of 404 long side of plate is fixed on the middle part of inclined plate 402, and opposite side is fixed on pressure block 403.
Level board 401 and inclined plate 402 are made of spring steel, and size is identical, is：Thickness is 9mm, length 680mm, wide
It spends for 450mm；Angle between inclined plate 402 and horizontal plane is 5 °；The bottom of first fixed plate 404 and the top of pressure block 403
The distance between be 80mm.The thickness of pressure block 403 is 150mm, length 350mm, is highly 450mm；Pressure block 403 carries
Then the forward motive force of top beam of advanced hydraulic support 1 drives bearing plate and a formula to hold funnel 5 and move.Thickness can
To ensure that steel plate has some strength and rigidity, the weight of pressure block 403 and partial cylinder pressure-bearing row 2 can be born and be subject to
Back 3 frictional force.The effect of board-like pressure-bearing baffle 4 is mainly to provide a space, makes subsequent cylinder pressure-bearing row 2
It is able to the gentle space between back 3 and top beam.
The effect of first fixed plate 404 mainly plays a part of to support inclined plate 402, in the firm work of 402 natural resiliency of inclined plate
Under, can arrange 2 to the cylinder pressure-bearing on top has certain pressure, and shows the pressure that allows of a part, to make cylinder pressure-bearing row 2 gentle
Into the space between back 3 and top beam.First fixed plate 404 can provide inclined plate 402 high intensity support, ensure
Cylinder pressure-bearing row 2 will not damage very much 402 part of inclined plate, a distance pressure block of the first fixed plate 404 welding by pressure greatly because of pressure
403 upper end distance 80mm, this distance ensure to the point of application of pressure block 403 within top beam thickness range, by with top beam
Front end power is offset, and the influence of rotation unstability will not be caused to device.
Top beam backplate includes collecting tank 6 and fixing device 7 afterwards, and fixing device 7 includes the second fixed plate 701, and second fixes
The rear end of plate 701 is connected with collecting tank 6, and the forepart of the second fixed plate 701 is provided with the first fixed strip band 702 and fixing lock 703,
Second fixed plate 701 is fixed on the top beam of advanced hydraulic support 1；6 main function of collecting tank is to catch down gradually landing
Cylindrical roller 201, collecting tank 6 include horizonal base plate 601 and be separately positioned on its front-end and back-end front side board 602 and after
Baffle 603, the upper end of front side board 602 are connected with the rear end of the second fixed plate 701.
The length of horizonal base plate 601 is 400mm, width 480mm, and the height of front side board 602 is 300mm, rear baffle 603
Height for 120mm, the length of the second fixed plate 701 is 300mm, horizonal base plate 601, front side board 602, rear baffle 603 and the
The thickness of two fixed plates 701 is 12mm.Because 201 weight of cylindrical roller is probably at 35 jin or so, 280mm's
Distance ensures that they will not draw the attachment device between being broken because of the too many of suspension, and the width of 380mm pushes up after also can guarantee
Beam backplate can hold the cylinder pressure-bearing row 2 of general 1-2m long；The long 280mm of fixed structure or so above has 702 He of the first fixed strip band
Fixed structure 7 is inserted between back 3 and top beam by fixing lock 703, and the first fixed strip band 702 is tied up in set cap
On, it is lockked using fixing lock 703.Size is preferred embodiment.
Length on the anterior-posterior horizontal direction of anti-drilling bottom baffle 10 is 350mm, and the height in upper and lower vertical direction is
400mm.The upper and lower part of the rear end of bearing block 9 is connected to upper mounted plate 13 and bottom plate 14, advanced hydraulic support 1
The front end of pedestal be fixed on using the second fixed strip band 15 between upper mounted plate 13 and bottom plate 14, the length of upper mounted plate 13
It spends for 350mm, thickness 7mm.
The shape of the cross section of 3rd fixed plate 301 on top 2/3rds be rectangle, the institute of lower part 1/3rd
The shape of the cross section of the 3rd fixed plate 301 is stated to be trapezoidal, the length of the front end of the 3rd fixed plate 301 is less than the length of rear end
Degree.This design during passage in advanced hydraulic support 1 primarily to reduce resistance.
The anterior-posterior length of bearing block 9 is 430mm, width 450mm, the highly height with the pedestal of advanced hydraulic support 1
Unanimously, the anterior-posterior length of fixing groove 12 is 300mm, and width 15mm, the distance between the front end of bearing block 9 is 40mm, is held
The distance between rear end of pouring weight 9 is 90mm；It ensure that during advanced hydraulic support 1 moves frame, 9 right side of bearing block, which has, to be filled
The stress area divided ensures reliable and device the practicability of bearing block 9；Bearing block 9 and upper mounted plate 13 are hinged, and lower solid
Fixed board 14 is welded and fixed；Second fixed strip band 15 is steel wire piece or molding long iron block.
The anterior-posterior length of guide plate 11 is 290mm, and width the widest part is 13mm, and most narrow place is 3~4mm, too thin easily disconnected
It splits, too thick resistance is too big, effect unobvious；Ensure that guide plate 11 smoothly can be easily inserted into fixing groove 12, and the seam of 2mm
Gap ensures that guide plate 11 will not be in loading process, because gap deviates from linear movement state；Highly it is 600mm；Mounting hole
The distance of the front end of 303 the 3rd fixed plate 301 of centre distance is 150mm, and the distance of rear end is 140mm, mounting hole 303 it is straight
Footpath is 25mm；A diameter of 12mm of pin hole 902, a diameter of 10mm of bolt ensure that bolt can smoothly be inserted into pin hole 902
In mounting hole 303, and the diameter of 10mm ensure that the strength demand of bolt.
The Assurance of Size bolt of the present invention can pass through hole, and during moves frame, guide plate 11 understands the work in resistance
Side is moved backward under, and guide plate 11 can be done one counterclockwise small using the contact point of right side and 12 end of fixing groove as the center of circle
Width rotates, and probably brings the rotation of hole 8mm, and therefore, a diameter of 25mm of mounting hole 303 ensure that 11 lower part of guide plate with consolidating
When determining 303 right contact of slot, bolt has at least gap of 2mm with hole surrounding, and bolt will not be subject to mounting hole 303 larger tangential
Power, and the diameter of 10mm also ensures that the hole shearing stress upward to bolt to bolt intensity larger impact, ensure that device
Science is reliable.
Anti-drilling bottom baffle 10 is exactly mainly a curved plane shuttering panels, and main function is pushed away in advanced hydraulic support 1
During shifting, utilize the shaped form design of itself, it is ensured that whole device and 1 pedestal of advanced hydraulic support all receive one it is upward
Component, before avoiding much under weak bottom plate, advanced hydraulic support 1 elapses and bores happening for bottom in the process, while into
One step evaded because bore tail band sideslip, rollover etc. dangerous situations generation, guide plate 11 itself more can guarantee device with
Advanced hydraulic support 1 is walked on one accurately programme path, safe and reliable, highly practical.
The method for protecting support of advance timbering under the dead-soft country rock of the present invention, includes the following steps：
(A) by the cylindrical roller 201 of cylinder pressure-bearing row 2, fixing nut 204, the first connector, the second connector, preceding
Top beam backplate and rear top beam backplate are transported to underground advance support region；
By guide plate 11, bearing block 9 and anti-drilling bottom baffle 10 transport 1 side of advanced hydraulic support, in advanced hydraulic pressure branch
1 pan frontward end of frame excavates the ditch of a depth 20mm slightly, by bottom of the bottom plate 14 of bearing block 9 along advanced hydraulic support 1
Seat lower section is gradually inserted, and is inserted at least 500mm, when resistance is larger to be pushed away to enter, stops manual work, personnel away from stent,
Frame is moved by advanced hydraulic support 1, bearing block 9 is progressively made to reach the front end of 1 pedestal of advanced hydraulic support；Stop moving frame, use iron
Hammer all around beats bearing block 9, makes it front and rear and aligns with pedestal or so, make before and after it is parallel with pedestal closely；
(B) iron 202 of each cylindrical roller 201 installs the first connector and the second connector, and connection forms circle
Column pressure-bearing row 2 has just started cylinder pressure-bearing row 2 and has been installed to 4m, wherein, first 201 both sides of cylindrical roller only needs to pacify per side
First connector or the second connector are filled, to connect cylindrical roller 201 below, when first cylindrical roller
After 201 roll out advanced hydraulic support 1, fixing nut 204 can be unscrewed, 1 front of advanced hydraulic support is connected to, takes over use；
When installing for the first time, 1 front pillar pressure release of advanced hydraulic support makes top beam front end depart from top plate 370-80mm, stops pressure release, by pressure-bearing
The level board 401 of plate 4 is inserted between advanced hydraulic support 1 and back 3, and mounted cylinder pressure-bearing row 2 is filled in top
Gap between plate 3 and top beam；
(C) upper mounted plate 13 is rotated into the top of bearing block 9, by the second fixed strip band 15 by upper mounted plate 13 with it is lower solid
Fixed board 14 is connected and is tightened；Guide plate 11 is put into, iron is used in the edge of a knife direction of the bottom of guide plate 11 in front of moving direction
Guide plate 11 is pounded 303 corresponding position of mounting hole by hammer, is inserted into bolt, Fixed latches, in 12 rear side of fixing groove and left and right two
A small amount of burlap or jute are filled in the place that side is contacted with guide plate 11, reduce the hard contact between iron block, reduce to the greatest extent
The gap of 2mm is to steering error caused by guide plate 11；
(D) not stand people beside stent within 3m, and top plate leakage cash is hurted sb.'s feelings when preventing from moving frame, before checking advanced hydraulic support 1
Square situation, it is ensured that shifting frame path is flat, starts to promote jack, sliding advance of support；When cylinder pressure-bearing row 2 has just been rolled to advanced branch
When in the middle part of frame top beam, to 1 rear pillar pressure release of advanced hydraulic support, top beam rear end is made to depart from back 370-80mm, stopped
Second fixed plate 701 of fixing device 7 is inserted between advanced hydraulic support 1 and back 3 by pressure release, and first is fixed
Band 702 is tied up in set cap rear end, is locked using fixing lock 703, and second fixed plate 701 and collecting tank 6 are fixed on
After the top beam of the advanced hydraulic support 1；
(E) when needing steering or adjustment direction, stop moving frame, manually beat 1 one side of pressure block with iron hammer, make pressure-bearing
Block 1 and the pan frontward end of advanced hydraulic support 1 form small crack, an appropriate number of small size standard iron block 16 are filled in, using one
The rotation angle of block trumpet standard iron block 16 is 2 °, places particular number as needed；When quantity is more than 3 pieces, using large size
Standard iron block 17, the angle of formation is 6 °；The length and width of the trumpet standard iron block 16 and it is high be respectively 150mm, 15mm and
150mm, the large size standard iron block 17 are trapezoidal, length 300mm, and the width of upper end is 31mm, and the width of lower end is 47mm, a height of
150mm；
(F) first use is completed, column pressure value before and after adjusting makes front and rear column pressure suitable with original normal pressure value,
Ensure that set cap is parallel with back 3, supporting is stablized；
(G) using advanced hydraulic support 1, often advance 2m is a Xun Huan, and often advance 2m, by circle extra in horizonal base plate 601
Cylindricality idler wheel 201 removes, and gets front and installs, and such 2m is a Xun Huan.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to the technical side of the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain that claims of the present invention determines.
Claims (10)
1. a kind of advance timbering under dead-soft country rock, it is characterised in that：Including roof timbering body and bottom plate prop；
The roof timbering body includes advanced hydraulic support (1) and cylinder pressure-bearing row (2), and the cylinder pressure-bearing row (2) is by multiple
Cylindrical roller (201) is sequentially connected in series, and the cylinder pressure-bearing row (2) is arranged on the top beam of the advanced hydraulic support (1)
Between back (3)；The length of the cylindrical roller (201) and advance timbering equivalent width, a diameter of 62mm；
Top beam backplate before the front end of the top beam of the advanced hydraulic support (1) is provided with, rear end is provided with rear top beam backplate；It is described
Preceding top beam backplate includes board-like pressure-bearing baffle (4) and a formula holds funnel (5), the rear end of the board-like pressure-bearing baffle (4) and institute
The front end for stating the top beam of advanced hydraulic support (1) is connected, and front end and the described formula of the board-like pressure-bearing baffle (4) hold funnel
(5) rear end is connected；
Described formula holds funnel (5) as strip, and cross section is spoon shape structure, the containing tank (501) including opening upwards
With the arc connecting portion (502) that Open Side Down；Described formula, which holds funnel (5), includes multiple spoon shape structural steel being arranged in parallel
Muscle, the strip reinforcement welding that multiple spoon shape structure reinforcing bars are arranged in parallel by 3 are fixed together；
The back (3) is broken coal seam, and anti-stone baffle (8) is provided on the arc connecting portion (502)；It is described anti-
Stone baffle (8) is made of hold-down bars (801), plane holder (802) and high-intensity resin plate (803), the hold-down bars (801) totally two
A, the bottom of the hold-down bars (801) is fixed on the both sides of the arc connecting portion (502), the top of the hold-down bars (801)
It is welded with the middle part of the plane holder (802), plane holder (802) grips the high-intensity resin plate (803)；
The hold-down bars (801) be rod iron, a diameter of 12mm；The top of the high-intensity resin plate (803) is apart from back
(3) distance is 60mm-100mm, wide and the advanced hydraulic support (1) equivalent width, the high-intensity resin plate (803)
Angle between plane where place plane and back (3) is 30 °；
The bottom plate prop includes bearing block (9), anti-drilling bottom baffle (10) and guide plate (11), and the bearing block (9) is with surpassing
The front end of the pedestal of preceding hydraulic support (1) is connected, and the fixing groove (12) of up/down perforation is provided in the middle part of the bearing block (9),
The guide plate (11) is provided in the fixing groove (12), the anti-drilling bottom baffle (10) is arc panel, lower end and institute
The front end for stating the bottom of bearing block (9) is connected, and the middle part of the arc panel is to the direction of advance of the advanced hydraulic support (1)
It protrudes lower part；
The guide plate (11) includes the 3rd fixed plate (301) and the cutting part for being connected to the 3rd fixed plate (301) bottom
(302), the 4th fixed plate (901) is respectively arranged in the both sides of the length direction of the fixing groove (12), it is solid the described 4th
Pin hole (902) is provided on fixed board (901), is provided with mounting hole (303) on the 3rd fixed plate (301), wherein institute
It states mounting hole (303) and the 3rd fixed plate (301) is fixed on by the 4th fixation by bolt with the pin hole (902)
On plate (901)；The cutting part (302) is cutter, and knife spine is connected with the bottom of the 3rd fixed plate (301), the cutter
The bottom of rear end and the front end of the knife spine be connected to form the blade of arc；
Roadway floor is dead-soft bottom plate, and uniaxial compressive strength is allowed to be less than 7.50MP, the mounting hole (303) and the cutting part
(302) the distance between lowermost end be H+280mm, H be advance timbering base thickness, unit mm.
2. the advance timbering under dead-soft country rock according to claim 1, it is characterised in that：The cylindrical roller (201)
Axis direction and the advanced hydraulic support (1) direction of advance it is perpendicular；At the both ends of the cylindrical roller (201)
Center is outward extended with a cylindrical iron (202) respectively, and the outer end of the iron (202) has helicitic texture (203)
And with the helicitic texture (203) matched fixing nut (204)；
The first connector or second are provided on first iron (202) with the last one cylindrical roller (201)
Connector is both provided with the first connector and the second connection on the iron (202) of other cylindrical rollers (201)
Part；
First connector includes a head rod (205) and two are separately fixed at the head rod (205)
The first sleeve (206) at both ends, the first sleeve (206) be both ends open hollow cylindrical, the first sleeve (206)
Internal diameter be more than the diameter of the iron (202), one of them described first sleeve (206) is set on the iron (202),
Another described first sleeve (206) is set on the iron of previous cylindrical roller (201)；
Second connector includes second connecting rod (207) and two are separately fixed at second connecting rod (207)
Second casing (208) at both ends, second casing (208) be both ends open hollow cylindrical, second casing (208)
Internal diameter be more than the diameter of the iron (202), one of them described second casing (208) is set on the iron (202),
Another described second casing (208) is set on the iron (202) of the latter cylindrical roller (201), is sequentially connected arrangement
Form the cylinder pressure-bearing row (2).
3. the advance timbering under dead-soft country rock according to claim 2, it is characterised in that：The diameter of the iron (202)
For 4mm, length 22mm, wherein, the length of the helicitic texture (203) is 4mm；The first sleeve (206) and described
The outer diameter of two casings (208) is 7mm, internal diameter 6mm, length 6mm；The head rod (205) and second connection
A diameter of 5mm of bar (207), length are bigger 10mm than the diameter of the cylindrical roller (201), the fixing nut (204)
Outer diameter is 10mm, internal diameter 4mm.
4. the advance timbering under dead-soft country rock according to claim 3, it is characterised in that：The board-like pressure-bearing baffle (4)
Including bearing plate, pressure block (403) and the first fixed plate (404), the pressure block (403) be solid squares iron block, bearing plate
Inclined plate (402) including level board (401) and the front end for being connected to the level board (401), the level board (401) and described
Inclined plate (402) is welding or integrated formed structure, and the bottom of the level board (401) is fixed at the top of the pressure block (403)
The front side in portion is fixed on the top of the advanced hydraulic support (1), the pressure block (403) on rear side of the level board (401)
It is in contact with the front end of the advanced hydraulic support (1)；The one side of first fixed plate (404) long side is fixed on the inclined plate
(402) middle part, opposite side are fixed on the pressure block (403).
5. the advance timbering under dead-soft country rock according to claim 4, it is characterised in that：Described formula holds funnel (5)
It is highly 490mm, width and advance timbering equivalent width, length 480mm；The thickness of the pressure block (403) is 150mm,
Length is 350mm, is highly 450mm；
The level board (401) and the inclined plate (402) are made of spring steel, and size is identical, is：Thickness is 9mm, and length is
680mm, width and advance timbering equivalent width；Angle of the inclined plate (402) between horizontal plane is 5 °；Described first fixes
The distance between the bottom of plate (404) and the top of the pressure block (403) are 80mm.
6. the advance timbering under dead-soft country rock according to claim 5, it is characterised in that：Top beam backplate includes receiving after described
Collect slot (6) and fixing device (7), the fixing device (7) includes the second fixed plate (701), second fixed plate (701)
Rear end is connected with the collecting tank (6), and the forepart of second fixed plate (701) is provided with the first fixed strip band (702) and consolidates
Second fixed plate (701) is fixed on the top beam of the advanced hydraulic support (1) by lock (703)；The collecting tank
(6) include horizonal base plate (601) and be separately positioned on the front side board (602) of its front-end and back-end and rear baffle (603), before described
The upper end of side plate (602) is connected with the rear end of second fixed plate (701)；The length of the horizonal base plate (601) is
400mm, width 480mm, the height of front side board (602) is 300mm, and the height of rear baffle (603) is 120mm, and second fixes
The length of plate (701) is 300mm, the horizonal base plate (601), the front side board (602), the rear baffle (603) and described
The thickness of second fixed plate (701) is 12mm.
7. the advance timbering under dead-soft country rock according to claim 6, it is characterised in that：The anti-drilling bottom baffle (10)
Length on anterior-posterior horizontal direction is 350mm, and the height in upper and lower vertical direction is 400mm；The rear end of the bearing block (9)
Upper and lower part is connected to upper mounted plate (13) and bottom plate (14), before the pedestal of the advanced hydraulic support (1)
End is fixed on using the second fixed strip band (15) between fixed plate (13) and the bottom plate (14), fixed
The length of plate (13) is 350mm, thickness 7mm；The shape of the cross section of 3rd fixed plate (301) on top 2/3rds
For rectangle, the shape of the cross section of the 3rd fixed plate (301) of lower part 1/3rd is trapezoidal, the 3rd fixed plate
(301) length of front end is less than the length of rear end.
8. the advance timbering under dead-soft country rock according to claim 7, it is characterised in that：The bearing block (9) it is front and rear
Length is 430mm, the width and highly consistent, the fixing groove of width and height with the pedestal of the advanced hydraulic support (1)
(12) anterior-posterior length is that the distance between 300mm, width 15mm, the front end of the bearing block (9) are 40mm, described to hold
The distance between rear end of pouring weight (9) is 90mm；The bearing block (9) and fixed plate (13) are hinged, and described lower solid
Fixed board (14) is welded and fixed；The second fixed strip band (15) is steel wire piece or molding long iron block.
9. the advance timbering under dead-soft country rock according to claim 8, it is characterised in that：The guide plate (11) it is front and rear
Length is 290mm, and width the widest part is 13mm, and most narrow place is 3~4mm, is highly 600mm；The center of the mounting hole (303)
Distance apart from the front end of the 3rd fixed plate (301) is 150mm, and the distance of rear end is 140mm, the mounting hole (303)
A diameter of 25mm；A diameter of 12mm of the pin hole (902), a diameter of 10mm of the bolt.
10. the method for supporting is carried out using the advance timbering under the dead-soft country rock described in claim 9, it is characterised in that：Including
Following steps：
(A) by the cylinder pressure-bearing row cylindrical roller (201) of (2), fixing nut (204), the first connector, the second connector,
Preceding top beam backplate and rear top beam backplate are transported to underground advance support region；
By guide plate (11), bearing block (9) and anti-drilling bottom baffle (10) are transported beside advanced hydraulic support (1), in advanced liquid
Pressure stent (1) pan frontward end excavates the ditch of a depth 20mm slightly, by the bottom plate (14) of bearing block (9) along advanced hydraulic pressure
It is gradually inserted below the pedestal of stent (1), is inserted at least 500mm, when resistance is larger to be pushed away to enter, stop manual work, people
Member moves frame, before bearing block (9) is progressively made to reach advanced hydraulic support (1) pedestal away from stent by advanced hydraulic support (1)
End；Stop moving frame, bearing block (9) is all around beaten with iron hammer, make it front and rear and align with pedestal or so, make before and after its and pedestal
It is parallel closely；
(B) iron (202) of each cylindrical roller (201) installs the first connector and the second connector, and connection forms circle
Column pressure-bearing arranges (2), has just started cylinder pressure-bearing row (2) and has been installed to 4m, wherein, first cylindrical roller (201) both sides, per side only
It needs that first connector or the second connector are installed, to connect cylindrical roller (201) below, when first cylinder
After shape idler wheel (201) rolls out advanced hydraulic support (1), fixing nut (204) is unscrewed, is connected to before advanced hydraulic support (1),
Take over use；When installing for the first time, advanced hydraulic support (1) front pillar pressure release makes top beam front end depart from top plate (3) 70-80mm, stops
The level board (401) of bearing plate (4) is inserted between advanced hydraulic support (1) and back (3), will install by stopping leak pressure
Good cylinder pressure-bearing row (2) fills in gap of the top plate (3) between top beam；
(C) upper mounted plate (13) is rotated to above bearing block (9), by the second fixed strip band (15) by upper mounted plate (13) with
Bottom plate (14) is connected and is tightened；Guide plate (11) is put into, the edge of a knife direction of the bottom of guide plate (11) is in movement side
Forwards, guide plate (11) is pounded into the corresponding position of mounting hole (303) with iron hammer, is inserted into bolt, Fixed latches, in fixing groove
(12) rear side and the place that is contacted with guide plate (11) of the left and right sides, fill in a small amount of burlap or jute, between reduction iron block
Hard contact, reduce the gap of 2mm to the greatest extent to steering error caused by guide plate (11)；
(D) not stand people beside stent within 3m, and top plate leakage cash is hurted sb.'s feelings when preventing from moving frame, is checked in front of advanced hydraulic support (1)
Situation, it is ensured that shifting frame path is flat, starts to promote jack, sliding advance of support；When cylinder pressure-bearing row (2) has just been rolled to advanced branch
When in the middle part of frame top beam, to advanced hydraulic support (1) rear pillar pressure release, top beam rear end is made to depart from back (3) 70-80mm,
Stop pressure release, by the second fixed plate (701) of fixing device (7) be inserted into advanced hydraulic support (1) and back (3) it
Between, the first fixed strip band (702) is tied up in set cap rear end, is locked using fixing lock (703), by second fixed plate
(701) and after collecting tank (6) is fixed on the top beam of the advanced hydraulic support (1)；
(E) when needing steering or adjustment direction, stop moving frame, manually beat pressure block (1) one side with iron hammer, make pressure block
(1) small crack is formed with the pan frontward end of advanced hydraulic support (1), fills in an appropriate number of small size standard iron block (16), adopt
Rotation angle with one piece of small size standard iron block (16) is 2 °, places particular number as needed；When quantity is more than 3 pieces, adopt
With large size standard iron block (17), the angle of formation is 6 °；Length and width and the height respectively 150mm of the trumpet standard iron block (16),
15mm and 150mm, the large size standard iron block (17) are trapezoidal, length 300mm, and the width of upper end is 31mm, and the width of lower end is
47mm, a height of 150mm；
(F) first use is completed, column pressure value before and after adjusting makes front and rear column pressure suitable with original normal pressure value, ensures
Set cap is parallel with back (3), and supporting is stablized；
(G) using advanced hydraulic support (1), often advance 2m is a Xun Huan, and often advance 2m, by circle extra in horizonal base plate (601)
Cylindricality idler wheel (201) removes, and gets front and installs, and such 2m is a Xun Huan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790216.1A CN106401631B (en) | 2016-08-30 | 2016-08-30 | Advance timbering and method for protecting support under a kind of dead-soft country rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790216.1A CN106401631B (en) | 2016-08-30 | 2016-08-30 | Advance timbering and method for protecting support under a kind of dead-soft country rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401631A CN106401631A (en) | 2017-02-15 |
| CN106401631B true CN106401631B (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610790216.1A Expired - Fee Related CN106401631B (en) | 2016-08-30 | 2016-08-30 | Advance timbering and method for protecting support under a kind of dead-soft country rock |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU414421A1 (en) * | 1973-02-07 | 1974-02-05 | Коммунарский Горнометаллургический Институт | DEVICE FOR MOVEMENTS MECHANIZED STRIPS MOVEMENTS |
| SU1198220A1 (en) * | 1983-09-08 | 1985-12-15 | Институт горного дела Сибирского отделения АН СССР | Unit of mobile unrelievable support |
| CN101509387A (en) * | 2009-03-27 | 2009-08-19 | 沈阳天安矿山机械科技有限公司 | Tunnel ahead support stent |
| CN203669865U (en) * | 2013-11-29 | 2014-06-25 | 单淑花 | Constant-support alpine bolter miner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002951570A0 (en) * | 2002-09-23 | 2002-10-03 | Lumb, Hilary Leith | Mine tunnel support apparatus |
-
2016
- 2016-08-30 CN CN201610790216.1A patent/CN106401631B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU414421A1 (en) * | 1973-02-07 | 1974-02-05 | Коммунарский Горнометаллургический Институт | DEVICE FOR MOVEMENTS MECHANIZED STRIPS MOVEMENTS |
| SU1198220A1 (en) * | 1983-09-08 | 1985-12-15 | Институт горного дела Сибирского отделения АН СССР | Unit of mobile unrelievable support |
| CN101509387A (en) * | 2009-03-27 | 2009-08-19 | 沈阳天安矿山机械科技有限公司 | Tunnel ahead support stent |
| CN203669865U (en) * | 2013-11-29 | 2014-06-25 | 单淑花 | Constant-support alpine bolter miner |
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| CN106401631A (en) | 2017-02-15 |
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