CN110005452A - A kind of base tunnel supporting arch quick-mount system and installation method - Google Patents
A kind of base tunnel supporting arch quick-mount system and installation method Download PDFInfo
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- CN110005452A CN110005452A CN201910357695.1A CN201910357695A CN110005452A CN 110005452 A CN110005452 A CN 110005452A CN 201910357695 A CN201910357695 A CN 201910357695A CN 110005452 A CN110005452 A CN 110005452A
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- 238000009434 installation Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009412 basement excavation Methods 0.000 claims description 48
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000005452 bending Methods 0.000 claims description 13
- 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 description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 210000000452 mid-foot Anatomy 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention provides a kind of base tunnel supporting arch quick-mount system and method, trailer system is increased on the basis of existing tunnel excavates trolley, support system, running gear and pushing tow system, on ground by arch integral assembling, setting is integrally pulled using trailer system, support system carries out temporary support to arch, it is by running gear that arch is mobile in place, arch is installed by hydraulic pushing system and is fixed, mechanization of building operation degree is high, a large amount of manpower can be saved, greatly improve construction efficiency, reduce security risk, and it ensure that be connected firmly degree and the installation accuracy of supporting arch.Present invention is particularly suitable for IV grade, V grade of Support System in Soft Rock Tunnels base tunnel supporting constructions.
Description
Technical field
The invention belongs to tunnel excavation and support technology fields, and in particular to a kind of pilot tunnel supporting arch installation system
And installation method, for side wall, double -side approach steel arch-shelf Fast Installation single under IV grade, V grade of tunnel weak surrounding rock.
Background technique
In tunnel excavation construction, arch is used to carry out the pass that supporting is constructing tunnel in time the side wall for having excavated base tunnel
Key process, to prevent tunnel cave.It is a tunnel excavation base tunnel structural schematic diagram, the excavation base tunnel in tunnel 100 shown in Fig. 1
102 side walls are equipped with supporting arch, and what base tunnel left side wall was installed in Fig. 1 is base tunnel preliminary bracing arch 102, and right side installation is
Base tunnel gib arch 103.Tunnel excavation, which generallys use, excavates trolley 104, and the installation of supporting arch is usually by tunnel
Trolley auxiliary is excavated to carry out.Tunnel excavation trolley two sides are respectively equipped with upper mounting plate, middle platform and lower platform, and construction personnel is each flat
Arch installation is carried out on platform.
Supporting arch generallys use I-steel, heavier-weight, and existing arch installation method is mainly by manpower transport to finger
Positioning is set, then is fixed by installing on manpower pushing tow to base tunnel side wall, large labor intensity, and construction efficiency is lower.It is especially especially big
IV grade, V grade weak surrounding rock supporting parameter of bore tunnel is high, is all made of large-scale I-steel steel arch-shelf, and model specification is high (to use I22
~I25 I-steel), single member length long (3.5~5.1m), single member weight weight (127-220Kg), supporting teams and groups personnel need
It is multiplied, but construction efficiency cannot still effectively improve, and cannot to be closed bring tunnel cave risk in time big for supporting
It is big to increase.
Summary of the invention
It is an object of the invention to for current pilot tunnel supporting arch installation mainly by manpower cause large labor intensity,
The low problem of construction efficiency provides a kind of base tunnel supporting arch quick-mount system and method, to improve arch installation effect
Rate avoids tunnel cave risk.
To achieve the above object, the present invention provides a kind of base tunnel supporting arch quick-mount system, including a tunnel excavation
Trolley, the tunnel excavation trolley include two rows of lower pillar stands disposed in parallel, and the outside of every lower pillar stand connects a cross bar and one
Hound forms shelf bracket, is equipped with panel on the cross bar of every row's lower pillar stand connection, forms lower platform；Two rows of lower pillar stands it is upper
It is connected between end by lower beam, certain length, lower beam midfoot support are extended to lower pillar stand outside in the lower beam both ends
Two upper pillar stands are located at the position on the outside of two upper pillar stands on lower beam and are equipped with panel, platform in formation；Two upper pillar stand upper ends
It is connected by upper beam, panel is equipped on upper beam, form upper mounting plate, which is characterized in that in the tunnel excavation trolley
It is equipped with trailer system, support system, running gear and pushing tow system；
The trailer system includes a hoist engine being arranged on tunnel excavation trolley upper mounting plate；
The support system includes lateral support system, vertical supporting system and rack system；The lateral support system
Including two transverse support bars, two transverse support bars are separately positioned on outside two lower pillar stand lower ends of tunnel excavation trolley rear end
Side, one end of every transverse support bar and the lower pillar stand are rotatablely connected by pin shaft, and the other end is connect with a chain block, institute
State the lower section that chain block is suspended on one cross bar of tunnel excavation trolley rear end；The vertical supporting system includes a vertical supporting
The lower end inside of bar, vertical supporting bar lower end and piece lower pillar stand in tunnel excavation trolley rear end is connected by shaft rotation
Connect, the upper end of vertical supporting bar is higher than the top for the hoist engine being arranged on tunnel excavation trolley upper mounting plate, and with the elevator
The traction rope of machine connects；The rack system includes being separately positioned on the base tunnel preliminary bracing arch support of tunnel excavation trolley two sides
Frame and base tunnel gib arch bracket, the base tunnel preliminary bracing arch bracket are one and base tunnel preliminary bracing arch radian one
The I-steel of cause, the base tunnel gib arch bracket are one and the consistent I-steel of base tunnel gib arch radian, institute
The lower end for stating base tunnel preliminary bracing arch bracket and base tunnel gib arch bracket is respectively supported at two transverse support bars
On, the upper end of the base tunnel preliminary bracing arch bracket and base tunnel gib arch bracket upper end with the vertical supporting bar respectively
It is connected by pin shaft；
The running gear includes multiple movable blocks, and each movable block includes a horizontally disposed supporting beam, described
Supporting beam bottom both ends are respectively welded a supporting leg, and every supporting leg bottom sets a coaster traveling wheel, the supporting beam top center with
One vertically arranged studdle lower end welding, a horizontal supporting plate is run through in the upper end of the studdle, described horizontally-supported
A vertical supporting plate is respectively welded in the two sides of plate, is spirally connected one at the bottom surface of the horizontal supporting plate on the studdle
Control nut；It is longitudinally equipped with a coaster respectively along trolley on the upper mounting plate, middle platform and lower platform of tunnel excavation trolley
Walking track, each movable block are arranged on the upper mounting plate or middle platform or lower platform of tunnel excavation trolley, movable block
Coaster traveling wheel be supported on coaster walking track, the horizontal supporting plate and vertical supporting plate of each movable block with
Base tunnel preliminary bracing arch bracket or the welding of base tunnel gib arch bracket；
The pushing tow system includes multiple hydraulic top pushing devices, and each hydraulic top pushing device includes a pedestal, the pedestal
Two sides of the bottom are respectively equipped with two idler wheels, and base top surface side is equipped with an oblique oil cylinder, and the rear end of the oblique oil cylinder passes through pin
Axis is connect with pedestal, and oblique oil cylinder front end is towards trolley outside and is equipped with the fixed device of arch, at oblique oil cylinder front end outer wall bottom
Weld a connecting plate in portion；The base top surface other side is equipped with a vertical oil cylinder, and the lower end of the vertical oil cylinder passes through pin shaft and pedestal
Connection, upper end is supported on the upper end of the oblique oil cylinder, and is connect with the connecting plate of oblique oil cylinder front bottom end by pin shaft；?
Two hydraulic top pushing device guide rails, each hydraulic top are respectively equipped on the lower platform of tunnel excavation trolley, middle platform and upper mounting plate
Pushing device is arranged on the lower platform or middle platform or upper mounting plate of tunnel excavation trolley, the idler wheel difference of base bottom two sides
It is supported on two hydraulic top pushing device guide rails.
The installation of base tunnel supporting arch is carried out using above-mentioned base tunnel supporting arch quick-mount system the present invention also provides a kind of
Method, it is characterised in that:
(1) base tunnel preliminary bracing arch bracket and the connection pin shaft of vertical supporting bar upper end are released；Rotation is faced with base tunnel
When supporting arch bracket connection movable block on control nut, increase the coaster traveling wheel of movable block bottom, leave
Coaster walking track；The traction rope for loosening hoist engine makes vertical supporting bar around the shaft of its lower end to tunnel excavation trolley rear
Rotation, and base tunnel gib arch bracket is driven to lay flat together onto ground；
(2) assembled good base tunnel gib arch on the ground, and bound with base tunnel gib arch bracket；
(3) starting hoist engine tighten traction rope, by vertical supporting bar, base tunnel gib arch bracket and with base tunnel it is interim
The base tunnel gib arch of supporting arch bracket binding is pulled together to upright state；
(4) the control nut on the movable block that rotation is connect with base tunnel gib arch bracket, makes movable block bottom
The coaster traveling wheel in portion declines, and is supported on coaster walking track；Release base tunnel gib arch bracket and vertical supporting bar
Connection pin shaft, while operating chain block and loosening jack, make the one of transverse support bar support base tunnel gib arch bracket
End height declines, and separates with base tunnel gib arch bracket lower end, base tunnel gib arch bracket is made to fully rely on movement
Coaster support；
(5) coaster of support base tunnel gib arch bracket is pushed to be moved to face base tunnel side wall along coaster walking track
On the predetermined installation site of base tunnel gib arch；
(6) hydraulic top pushing device is pushed to base tunnel gib arch side, starts vertical pipe bending cylinder and stretches, adjustment
The axis perpendicular of oblique oil cylinder is in the axis of base tunnel gib arch；Start oblique pipe bending cylinder, makes its front end close to base tunnel
Gib arch, and the fixed device of the arch of its front end is connected and fixed with base tunnel gib arch；
(7) binding for releasing base tunnel gib arch bracket and base tunnel gib arch, pushes movable block that will lead
Hole gib arch bracket is removed；Starting oblique pipe bending cylinder on base tunnel gib arch pushing tow to base tunnel side wall and will pacify
Dress is fixed；
(8) base tunnel preliminary bracing arch bracket is connect with vertical supporting bar upper end by pin shaft, then according to step (1)
Method to (7) installs base tunnel preliminary bracing arch；
(9) circulation above-mentioned steps (1) arrives (8), completes all base tunnel gib arches and base tunnel preliminary bracing arch
Installation.
The present invention increases trailer system, support system, running gear and pushing tow on the basis of existing tunnel excavates trolley
System can integrally pull setting using hoist engine on ground by arch integral assembling, mobile in place by running gear, lead to
It crosses the installation of hydraulic pushing system to fix, steel arch-shelf integral installation mechanization degree is high, can save a large amount of manpower, greatly improve and apply
Work efficiency rate reduces security risk, and ensure that be connected firmly degree and the installation accuracy of supporting arch.Present invention is particularly suitable for
IV grade, V grade of Support System in Soft Rock Tunnels base tunnel supporting construction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pilot tunnel and tunnel excavation trolley；
Fig. 2 is positive structure diagram of the invention；
Fig. 3 is side structure schematic view of the invention；
Fig. 4 is the side structure schematic view of movable block；
Fig. 5 is the positive structure diagram of movable block；
The positive structure diagram of Fig. 6 hydraulic pushing system；
Fig. 7 is the fixed device positive structure diagram of arch of the oblique oil cylinder front end of hydraulic pushing system；
Fig. 8 is the fixed device overlooking structure diagram of arch of the oblique oil cylinder front end of hydraulic pushing system；
Fig. 9 is the fixed structure schematic diagram of arch fixed device and arch；
A kind of use state side view of base tunnel supporting arch quick-mount system Figure 10 of the invention；
A kind of use state front view of base tunnel supporting arch quick-mount system Figure 11 of the invention；
Figure 12 is the status diagram after base tunnel preliminary bracing arch is installed with base tunnel gib arch.
Specific embodiment
Base tunnel supporting arch quick-mount system of the invention is carried out on the basis of existing tunnel excavation trolley
It improves.
As shown in Figure 2 and Figure 3, tunnel excavation trolley includes two rows of lower pillar stands 1 disposed in parallel, the outside of every lower pillar stand 1
It connects a cross bar 2 and a hound 3 forms shelf bracket, panel is equipped on the cross bar 2 of every row's lower pillar stand connection, under formation
Platform 4；It is connected between the upper end of two rows of lower pillar stands 1 by lower beam 5,5 both ends of lower beam are to extending on the outside of lower pillar stand 1
Certain length, lower beam 5 midfoot support, two upper pillar stands 6 are located at the position on the outside of two upper pillar stands on lower beam 5 and are equipped with face
Plate, platform 7 in formation；Two upper pillar stand upper ends are connected by upper beam 8, and panel is equipped on upper beam, form upper mounting plate 9.
The present invention is provided with trailer system, support system, running gear and pushing tow system on above-mentioned tunnel excavation trolley.
The trailer system includes a hoist engine 10 being arranged on tunnel excavation trolley upper mounting plate；
The support system includes lateral support system, vertical supporting system and rack system；The lateral support system
Including two transverse support bars 11, two transverse support bars 11 are separately positioned under two lower pillar stands 1 of tunnel excavation trolley rear end
End outside, one end of every transverse support bar 11 and the lower pillar stand 1 are rotatablely connected by pin shaft, the other end and a chain block
12 connections, the chain block 12 are suspended on the lower section of one cross bar 2 of tunnel excavation trolley rear end；The vertical supporting system includes
The lower end inside of one vertical supporting bar 13,13 lower end of vertical supporting bar and piece lower pillar stand 1 in tunnel excavation trolley rear end is logical
A shaft 14 rotation connection is crossed, the upper end of vertical supporting bar 13 is higher than the hoist engine 10 being arranged on tunnel excavation trolley upper mounting plate
Top, and connect with the traction rope of the hoist engine；The rack system includes being separately positioned on tunnel excavation trolley two sides
Base tunnel preliminary bracing arch bracket 15 and base tunnel gib arch bracket 16, the base tunnel preliminary bracing arch bracket 15 is
One with the consistent I-steel of base tunnel preliminary bracing arch radian, the base tunnel gib arch bracket 16 is one interim with base tunnel
The consistent I-steel of supporting arch radian, the base tunnel preliminary bracing arch bracket 15 and base tunnel gib arch bracket 16
Lower end is respectively supported in two transverse support bars 11, base tunnel preliminary bracing arch bracket 15 and base tunnel gib arch support
The upper end of frame 16 is connect with the upper end of the vertical supporting bar 13 by pin shaft respectively；
The running gear includes multiple movable blocks 17.The structure of each movable block is as shown in Figure 4, Figure 5, including one
A supporting leg 172 is respectively welded in horizontally disposed supporting beam 171, supporting beam bottom both ends, and every supporting leg bottom sets a coaster
Traveling wheel 173, the supporting beam top center are welded with vertically arranged 174 lower end of studdle, the studdle 174
Upper end run through a horizontal supporting plate 175, a vertical supporting plate 176 is respectively welded in the two sides of the horizontal supporting plate 175, in institute
State the control nut 177 that is spirally connected at the bottom surface of the horizontal supporting plate 175 on studdle 174.
It is longitudinally equipped with a coaster row respectively along trolley on the upper mounting plate, middle platform and lower platform of tunnel excavation trolley
Track is walked, each movable block is arranged on the upper mounting plate or middle platform or lower platform of tunnel excavation trolley, movable block
Coaster traveling wheel 173 is supported on the coaster walking track, the horizontal supporting plate 175 and vertical supporting plate of each movable block
176 weld with base tunnel preliminary bracing arch bracket 15 or base tunnel gib arch bracket 16.
Rotation control nut 177, can be such that studdle 174 rises or falls, and drive supporting beam 171 and coaster traveling wheel
173 rise or fall, and coaster traveling wheel 173 can be made to leave coaster walking track as needed or be supported on coaster walking track
On.
The pushing tow system includes multiple hydraulic top pushing devices 18, and the structure of each hydraulic top pushing device 18 as indicated with 6, is wrapped
A pedestal 181 is included, 181 two sides of the bottom of pedestal are respectively equipped with two idler wheels 182, and base top surface side is equipped with an oblique oil cylinder
183, the rear end of the oblique oil cylinder 183 is connect by pin shaft with pedestal, and oblique oil cylinder front end is towards trolley outside and is equipped with arch
Frame fixes device 184, welds a connecting plate 185 in oblique 183 front end outer wall bottom of oil cylinder；The 181 top surface other side of pedestal is equipped with
The lower end of one vertical oil cylinder 186, the vertical oil cylinder 186 is connect by pin shaft with pedestal, and upper end is supported on the oblique oil cylinder
Upper end, and connect with the connecting plate 185 of oblique 183 front bottom end of oil cylinder by pin shaft；Tunnel excavation trolley lower platform,
Two hydraulic top pushing device guide rails are respectively equipped on middle platform and upper mounting plate, each hydraulic top pushing device 18 is arranged in tunnel excavation
On the lower platform or middle platform or upper mounting plate of trolley, the idler wheel of base bottom two sides is respectively supported at two hydraulic top pushing devices
On guide rail.
The present invention when it is implemented, the shaft 14 that connects between the vertical supporting bar 13 and lower pillar stand 1 is horizontally disposed,
One end is welded on the lower end inside of lower pillar stand 1, and the other end extends transversely through the lower end of vertical supporting bar 13, the vertical supporting bar 13
It can be rotated around the shaft 14.
A support is respectively welded in the upper end of the base tunnel preliminary bracing arch bracket 15 and base tunnel gib arch bracket 16
Frame connecting plate 19, and connect with the upper end of vertical supporting bar 13 by pin shaft by the bracket connecting plate 19.
As shown in Figure 7, Figure 8, the fixed device 184 of the arch of 183 front end of oblique oil cylinder of the hydraulic top pushing device is one
Lock, the lock includes 1841, two L-type screw rods 1842 of a L-type push plate and a L-type snap-gauge 1843, and the L-type push plate is one
Right angle angle steel, a line are fixedly connected with the front end of oblique oil cylinder 183, edge and oblique oil cylinder axis parallel in another a line
Direction is welded with two pairs of otic placodes 1844, and each otic placode is equipped with screw hole, and one end of each L-type screw rod 1842 is interspersed in a pair of of otic placode
Screw hole in, and the top and bottom of be spirally connected two adjusting nuts 1845 and otic placode 1844 clamp；The L-type snap-gauge 1843
It is also angle steel always, the other end of a line and the L-type screw rod 1842 welds, and another a line is towards oblique pipe bending cylinder
183。
Shown in Fig. 9 is fixed structure schematic diagram of the fixed device of arch to arch I-steel, to base tunnel gib
For 103 I-steel of arch is fixed, when supporting arch 103 is fixed in lock, two adjusting nuts 1845 will be first unclamped, it will
L-type screw rod 1842 moves up, and so that the opening between L-type push plate 1841 and L-type snap-gauge 1843 is greater than the height of I-steel, will open
It is directed at I-steel side at mouthful, pushes hydraulic top pushing device mobile to the I-steel other side, I-steel is placed in L-type push plate 1841
Between L-type snap-gauge 1843, and the upward pushing tow of oblique pipe bending cylinder 183 is adjusted, L-type push plate 1841 is held out against into I-steel, then
L-type screw rod 1842 is moved down, L-type snap-gauge 1843 is made also to hold out against I-steel, tightens two adjusting nuts 1845, by L-type screw rod
1842 is fixed, and just base tunnel gib arch 103 is locked between L-type push plate 1841 and L-type snap-gauge 1843.Starting is oblique
To the pushing tow forward of pipe bending cylinder 183, by the designated position of 103 pushing tow of base tunnel gib arch to base tunnel side wall and can pacify
Dress is fixed.
The installation of base tunnel supporting arch is carried out using above-mentioned base tunnel supporting arch quick-mount system, the method is as follows:
Due to base tunnel preliminary bracing arch and base tunnel gib arch upper end, there are T-shaped intersections, to avoid installation phase
Mutually interference, base tunnel preliminary bracing arch and base tunnel gib arch are installed respectively, first install base tunnel gib arch, after
Base tunnel preliminary bracing arch is installed.Specifically includes the following steps:
(1) as shown in Figure 10, Figure 11, by the connecting pin of base tunnel preliminary bracing arch bracket 15 and 13 upper end of vertical supporting bar
Axis releases；The adjusting nut on the movable block 17 connecting with base tunnel gib arch bracket 16 is rotated, movable block bottom is made
The coaster traveling wheel in portion rises, and leaves coaster walking track；The traction rope 20 for loosening hoist engine 10, makes vertical supporting bar 13 around it
The shaft 14 of lower end is rotated to tunnel excavation trolley rear, and base tunnel gib arch bracket 16 is driven to be laid flat together to ground
On；
(2) assembled good base tunnel gib arch 103 on the ground, and bound with base tunnel gib arch bracket 16；
(3) as shown in figure 11, starting hoist engine 10 tightens traction rope, by vertical supporting bar 13, base tunnel gib arch
Bracket 16 and the base tunnel gib arch 103 bound with base tunnel gib arch bracket are pulled together to upright state；
(4) adjusting nut on the movable block 17 that rotation is connect with base tunnel gib arch bracket 16 makes mobile cunning
The coaster traveling wheel of 17 bottom of vehicle declines, and is supported on coaster walking track；Then base tunnel gib arch bracket 16 is released
It with the connection pin shaft of vertical supporting bar 13, while operating chain block 12 and loosening jack, make transverse support bar 11 that base tunnel be supported to face
When supporting arch bracket 16 the decline of one end height, separated with base tunnel gib arch bracket lower end, make base tunnel gib
Arch bracket 16 fully relies on the support of movable block 17；
(5) coaster 17 of support base tunnel gib arch bracket 16 is pushed to be moved to face base tunnel along coaster walking track
The predetermined installation site of base tunnel gib arch on side wall；
(6) hydraulic top pushing device 18 is pushed to 103 side of base tunnel gib arch, starts vertical pipe bending cylinder and stretches
Contracting, is adjusted to the axis perpendicular to base tunnel gib arch 103 for the axle center of oblique oil cylinder；Start oblique pipe bending cylinder, makes
Its arch is fixed device 184 and base tunnel is interim by its front end close to base tunnel gib arch, and according to mode shown in Fig. 9
Supporting arch 103 is locked；
(7) binding for releasing base tunnel gib arch bracket 16 and base tunnel gib arch 103, pushes movable block
17 remove base tunnel gib arch bracket 16；Start the oblique pipe bending cylinder of hydraulic top pushing device 18 for base tunnel gib
On arch 103 pushing tow to base tunnel side wall and fixation is installed；
(8) method and the method phase of above-mentioned installation base tunnel gib arch 103 of base tunnel preliminary bracing arch 102 are installed
Together.The connection of base tunnel gib arch bracket 16 and vertical supporting bar 13 is released, by base tunnel preliminary bracing arch bracket 15
It is connect with 13 upper end of vertical supporting bar by pin shaft, then according to the peace of base tunnel gib arch 103 in step (1) to (7)
Dress method installs base tunnel preliminary bracing arch 102；
(9) circulation above-mentioned steps (1) arrives (8), until completing all base tunnel gib arches 103 and base tunnel preliminary bracing
The installation of arch 102.State after being installed is as shown in figure 12.
Claims (5)
1. a kind of base tunnel supporting arch quick-mount system, including a tunnel excavation trolley, the tunnel excavation trolley includes two
Lower pillar stand disposed in parallel is arranged, the outside of every lower pillar stand connects a cross bar and a hound forms shelf bracket, stands under every row
It is equipped with panel on the cross bar of column connection, forms lower platform；It is connected between the upper end of two rows of lower pillar stands by lower beam, under described
Certain length is extended to lower pillar stand outside in crossbeam both ends, and two upper pillar stands of lower beam midfoot support are located at two on lower beam
Position on the outside of upper pillar stand is equipped with panel, platform in formation；Two upper pillar stand upper ends are connected by upper beam, on upper beam upper berth
Equipped with panel, upper mounting plate is formed, which is characterized in that trailer system, support system, walking are equipped on the tunnel excavation trolley
System and pushing tow system；
The trailer system includes a hoist engine being arranged on tunnel excavation trolley upper mounting plate；
The support system includes lateral support system, vertical supporting system and rack system；The lateral support system includes
Two transverse support bars, two transverse support bars are separately positioned on two lower pillar stand lower end outsides of tunnel excavation trolley rear end, often
One end of root transverse support bar and the lower pillar stand are rotatablely connected by pin shaft, and the other end is connect with a chain block, the hand
Cucurbit is drawn to be suspended on the lower section of one cross bar of tunnel excavation trolley rear end；The vertical supporting system includes a vertical supporting bar, institute
The lower end inside for stating vertical supporting bar lower end and piece lower pillar stand in tunnel excavation trolley rear end is rotatablely connected by a shaft, vertically
The upper end of support rod is higher than the top for the hoist engine being arranged on tunnel excavation trolley upper mounting plate, and the traction with the hoist engine
Rope connection；The rack system includes the base tunnel preliminary bracing arch bracket and base tunnel for being separately positioned on tunnel excavation trolley two sides
Gib arch bracket, the base tunnel preliminary bracing arch bracket are one and the consistent I-shaped of base tunnel preliminary bracing arch radian
Steel, the base tunnel gib arch bracket are one and the consistent I-steel of base tunnel gib arch radian, at the beginning of the base tunnel
The lower end of phase supporting arch bracket and base tunnel gib arch bracket is respectively supported in two transverse support bars, at the beginning of base tunnel
Upper end of the upper end of phase supporting arch bracket and base tunnel gib arch bracket respectively with the vertical supporting bar passes through pin shaft
Connection；
The running gear includes multiple movable blocks, and each movable block includes a horizontally disposed supporting beam, the support
A supporting leg is respectively welded in beam bottom portion both ends, and every supporting leg bottom sets a coaster traveling wheel, and the supporting beam top center is perpendicular with one
It is welded to the studdle lower end of setting, a horizontal supporting plate is run through in the upper end of the studdle, the horizontal supporting plate
A vertical supporting plate is respectively welded in two sides, and be spirally connected at the bottom surface of the horizontal supporting plate control on the studdle
Nut；Longitudinally it is equipped with a coaster walking respectively along trolley on the upper mounting plate, middle platform and lower platform of tunnel excavation trolley
Track, each movable block are arranged on the upper mounting plate or middle platform or lower platform of tunnel excavation trolley, the cunning of movable block
Vehicle traveling wheel is supported on coaster walking track, and the horizontal supporting plate and vertical supporting plate of each movable block are and base tunnel
Preliminary bracing arch bracket or the welding of base tunnel gib arch bracket；
The pushing tow system includes multiple hydraulic top pushing devices, and each hydraulic top pushing device includes a pedestal, the base bottom
Two sides are respectively equipped with two idler wheels, and base top surface side is equipped with an oblique oil cylinder, the rear end of the oblique oil cylinder by pin shaft with
Pedestal connection, oblique oil cylinder front end is towards trolley outside and is equipped with the fixed device of arch, welds in oblique oil cylinder front end outer wall bottom
Connect a connecting plate；The base top surface other side is equipped with a vertical oil cylinder, and the lower end of the vertical oil cylinder is connect by pin shaft with pedestal,
Upper end is supported on the upper end of the oblique oil cylinder, and is connect with the connecting plate of oblique oil cylinder front bottom end by pin shaft；In tunnel
It excavates and is respectively equipped with two hydraulic top pushing device guide rails on the lower platform, middle platform and upper mounting plate of trolley, each hydraulic pushing dress
It installs on a lower platform or middle platform or upper mounting plate for tunnel excavation trolley, the idler wheel of base bottom two sides supports respectively
On two hydraulic top pushing device guide rails.
2. base tunnel supporting arch quick-mount system according to claim 1, it is characterised in that: the vertical supporting bar with
The shaft connected between lower pillar stand is horizontally disposed, and one end is welded on the lower end inside of lower pillar stand, and the other end extends transversely through vertically
The lower end of support rod, the vertical supporting bar can be rotated around the shaft.
3. base tunnel supporting arch quick-mount system according to claim 1, it is characterised in that: the base tunnel preliminary bracing
A bracket connecting plate is respectively welded in the upper end of arch bracket and base tunnel gib arch bracket, and passes through the bracket connecting plate
It is connect with the upper end of vertical supporting bar by pin shaft.
4. base tunnel supporting arch quick-mount system according to claim 1, it is characterised in that: the hydraulic top pushing device
The fixed device of arch of oblique oil cylinder front end include a lock, the lock includes a L-type push plate, two L-type screw rods and a L
Type snap-gauge, the L-type push plate are that angle steel, a line are fixedly connected with the front end of oblique oil cylinder always, edge in another a line
Two pairs of otic placodes are welded with the direction of oblique oil cylinder axis parallel, each otic placode is equipped with screw hole, and one end of each L-type screw rod is worn
It is inserted in the screw hole of a pair of of otic placode, and the top and bottom clamping of be spirally connected two adjusting nuts and an otic placode；The L-type snap-gauge
It is also angle steel always, the other end of a line and the L-type screw rod welds, and another a line is towards before oblique pipe bending cylinder
End.
5. a kind of side for carrying out the installation of base tunnel supporting arch using base tunnel supporting arch quick-mount system described in claim 1
Method, it is characterised in that:
(1) base tunnel preliminary bracing arch bracket and the connection pin shaft of vertical supporting bar upper end are released；Rotation is temporarily propped up with base tunnel
The control nut on the movable block of arch bracket connection is protected, increase the coaster traveling wheel of movable block bottom, leaves coaster
Walking track；The traction rope for loosening hoist engine rotates vertical supporting bar to tunnel excavation trolley rear around the shaft of its lower end,
And base tunnel gib arch bracket is driven to lay flat together onto ground；
(2) assembled good base tunnel gib arch on the ground, and bound with base tunnel gib arch bracket；
(3) starting hoist engine tighten traction rope, by vertical supporting bar, base tunnel gib arch bracket and with base tunnel gib
The base tunnel gib arch of arch bracket binding is pulled together to upright state；
(4) the control nut on the movable block that rotation is connect with base tunnel gib arch bracket, makes movable block bottom
The decline of coaster traveling wheel is supported on coaster walking track；Release the company of base tunnel gib arch bracket and vertical supporting bar
Outbound axis, while operating chain block and loosening jack, keep one end of transverse support bar support base tunnel gib arch bracket high
Degree decline, separates with base tunnel gib arch bracket lower end, base tunnel gib arch bracket is made to fully rely on movable block
Support；
(5) coaster of support base tunnel gib arch bracket is pushed to be moved on face base tunnel side wall along coaster walking track
The predetermined installation site of base tunnel gib arch；
(6) hydraulic top pushing device is pushed to base tunnel gib arch side, starts vertical pipe bending cylinder and stretch, adjusts oblique
The axis perpendicular of oil cylinder is in the axis of base tunnel gib arch；Start oblique pipe bending cylinder, keeps its front end interim close to base tunnel
Supporting arch, and the fixed device of the arch of its front end is connected and fixed with base tunnel gib arch；
(7) binding for releasing base tunnel gib arch bracket and base tunnel gib arch, pushes movable block to face base tunnel
When supporting arch bracket remove；Starting oblique pipe bending cylinder on base tunnel gib arch pushing tow to base tunnel side wall and will install solid
It is fixed；
(8) base tunnel preliminary bracing arch bracket is connect with vertical supporting bar upper end by pin shaft, is then arrived according to step (1)
(7) method installs base tunnel preliminary bracing arch；
(9) circulation above-mentioned steps (1) arrives (8), completes the installation of all base tunnel gib arches and base tunnel preliminary bracing arch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357695.1A CN110005452B (en) | 2019-04-29 | 2019-04-29 | Quick installation system and installation method for pilot tunnel supporting arch centering |
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|---|---|---|---|
| CN201910357695.1A CN110005452B (en) | 2019-04-29 | 2019-04-29 | Quick installation system and installation method for pilot tunnel supporting arch centering |
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| CN110005452A true CN110005452A (en) | 2019-07-12 |
| CN110005452B CN110005452B (en) | 2024-02-06 |
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