CN105952480A - Box girder through type self-propelled hydraulic invert trestle - Google Patents
Box girder through type self-propelled hydraulic invert trestle Download PDFInfo
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- CN105952480A CN105952480A CN201610474352.XA CN201610474352A CN105952480A CN 105952480 A CN105952480 A CN 105952480A CN 201610474352 A CN201610474352 A CN 201610474352A CN 105952480 A CN105952480 A CN 105952480A
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- 230000007246 mechanism Effects 0.000 claims abstract description 118
- 238000010276 construction Methods 0.000 claims abstract description 41
- 238000009412 basement excavation Methods 0.000 claims description 39
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 230000005641 tunneling Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005183 dynamical system Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000003466 welding 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to the technical field of tunnel invert arch construction and relates to a box girder through type self-propelled hydraulic invert trestle. The box girder through type self-propelled hydraulic invert trestle comprises a trestle body, a front approach bridge, a rear approach bridge and a movable supporting mechanism, the front approach bridge and the rear approach bridge are arranged at front and rear ends of the trestle body respectively, the trestle body comprises two box girders in bilateral symmetry and box crossbeams, and the box crossbeams are in longitudinal arrangement and connected with the box girders. The box girders serve as passage surfaces, and bridge decks cover the box girders. The movable supporting mechanism is arranged between the two box girders, an upper guide rail and a lower guide rail are parallelly arranged on the inner side wall of each box girder, the movable supporting mechanism moves along the lower guide rails, and correspondingly, the movable supporting mechanism comprises upper rollers and lower rollers, the upper rollers and the lower rollers move along the upper guide rails and the lower guide rails, and the upper rollers are driven by a hydraulic motor. The box girder through type self-propelled hydraulic invert trestle has advantages of simple structure, high reliability, convenience in use, wide application range, short processing cycle, convenience in transfer, quickness and convenience in assembly, high recycle rate and high variability.
Description
Technical field
The present invention relates to a kind of box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily, belong to tunnel inverted arch technical field of construction.
Background technology
When constructing tunnel, the section-bottom arc of excavation is referred to as inverted arch；And in the work progress at inverted arch position, tunnel, inverted arch trestle need be set up in inverted arch excavation face, the excavation face of connection front end, tunnel and filling face, rear end, tunnel passage, filling face i.e. inverted arch carries out term during concrete construction, the existence of inverted arch trestle makes tunnel excavation outwards slag tap and material transports not executed by inverted arch in hole and affected, it is ensured that inverted arch concrete construction and tunnel excavation continuously, carry out simultaneously.But the trestle used in construction generally has the disadvantage that at present
The most traditional trestle uses I-steel Site Welding, Heavy Weight, does not has dynamical system, mobile in place being required for is carried with excavator, although with low cost, but span is the least, span is too big just cannot carry by usage mining machine, executes man-hour requirement and uses power-equipment to move frequently, in-convenience in use.
2. dynamical system is installed additional on tradition trestle work structure in part producing producer, makes the trestle can be with automatic moving, although span can reach about 12 meters, but structures shape its cannot complete inverted arch construction of more large span.
3. part producing producer trestle uses both sides truss and center-aisle structure to alleviate main bridge weight, further increases main spanning degree；The construction length enabling trestle reaches more than 16 meters.But owing to truss structure fails to meet further the construction requirement of large span, there is the not convenient of use.
The trestle of the most currently used large span, the most only can be suitably used for a certain specific construction method, excavation tap cinder construction bottom inverted arch to be taken into account, need to increase trestle pedal, trestle total length is made at least to increase by tens meters, on the inverted arch filling face needing all to return back to accomplish fluently when clearing up bottom ash, on the one hand rollback bothers very much, the construction of follow-up link does not allows to be too far apart, feed and slag tap to produce and interfere, there is no good solution so that the application of trestle is by strong influence.
5. the grade of constructing tunnel is more and more higher at present, for ensureing the globality of inverted arch construction, improves bearing capacity, and construction unit requires that inverted arch one-off construction length to reach more than 24 meters, with the trestle of current existing kind, it is impossible to realize line production and construct.
6., at present the requirement of satisfied construction length while, tunnel excavation there has also been the requirement of full face tunneling, and putting for trestle front end has had higher requirement with front access bridge angle position, with the trestle of current existing kind, it is impossible to realize line production and construct.
7., for meeting the light-gauge tunnel of single line, it is desirable to there is more compact structure, meet the trestle requirement of different spans；Difficulty of construction in single-track tunnel is bigger, it is desirable to the automaticity of trestle is higher, and the miscellaneous function having is more；And existing trestle work structure cannot meet the light-gauge constructing tunnel of single line.
8. meet the new demands such as the process-cycle is short, transhipment is convenient, assembly is quick, recycling rate of waterused is high, transmutability is strong for trestle, new trestle is had higher requirement.
Summary of the invention
The present invention has supplied a kind of box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily, compact conformation, equipment span is widely applicable, it is adaptable to single double track tunnel structure, use are conveniently, safely, the use requirement of various working under multiple environment can be met, be used for overcoming the deficiencies in the prior art.
The present invention is achieved through the following technical solutions, including trestle main body and be separately positioned on the front access bridge of trestle rear and front end, rear access bridge,
Described trestle main body is by symmetrical two box type girders, the box crossbeam of two box type girders of connection front and back arranged；Described box type girder, as current work surface, also covers the increase friction of bridge floor pedal on box type girder and realizes passing through steadily；
Also include the movable support mechanism being arranged between two box type girders, the medial wall of described box type girder arranges upper and lower two closed slides, i.e. upper rail and lower guideway, movable support mechanism moves along lower guideway, correspondingly, movable support mechanism includes upper roller, the bottom roller moved along upper rail, lower guideway, and bottom roller passes through fluid motor-driven, and box type girder moves along upper roller；It is additionally provided with support oil cylinder in movable support mechanism, the support on different supporting surfaces can be met.This support oil cylinder can be arranged increases joint.Movable support mechanism is U-shaped design, is suspended on the outside of two box type girders, and when upper rail contacts with upper roller, trestle main body with under effect, with movable support mechanism as fulcrum, drives trestle main body to move forward and backward in drive mechanism；When the support oil cylinder of movable support mechanism extends and touches supporting surface and stress, lower guideway contacts with bottom roller, now drives bottom roller that movable support mechanism can be enable to reach the optional position of lower guideway.
The box type girder of the described left and right sides is made up of sections, uses bearing pin to connect between sections.
Fixing supporting mechanism before also including bottom described trestle body front end, described front fixing supporting mechanism is made up of front oil cylinder, front traversing cushion block, support means；Described front traversing cushion block is arranged on the lower section of trestle main body, and is connected with trestle main body by front traversing cushion block；Described support means is to be arranged on the support oil cylinder of front traversing cushion block bottom surface, is realized the regulation of upper-lower height by oil cylinder；The most arranged in a crossed manner between described support means have two auxiliary support bars；Described support means and the leading portion of front traversing cushion block, connect also by the reinforcement arranged.
Described trestle body rear is additionally provided with rear transverse-moving mechanism, and described rear transverse-moving mechanism includes rear oil cylinder and rear traversing cushion block, and rear traversing cushion block is arranged on the lower section of trestle main body, and is connected with trestle main body by rear oil cylinder.
Described movable support mechanism is additionally included on U-shaped transverse section the boom hoisting increased, and or traction apparatus.
It is provided with reinforcement between described bridge floor pedal.
Described front lift cylinder, rear lift cylinder, front oil cylinder, rear oil cylinder, support oil cylinder is hydraulic drive.
Movement of the present utility model comprises the following steps:
Step one, when under trestle, inverted arch construction and filling construction complete, tunnel continues to excavate forward, trestle need to move forward, and front access bridge, rear access bridge are respectively required for by front lift cylinder, rear lift cylinder is liftoff, movable support mechanism at trestle front support to excavation face, trestle main body falls on the upper roller of movable support mechanism, making movable support mechanism as the fulcrum of trestle main body, drive mechanism acts on the concrete in filling face, and trestle prepares to travel forward；
Step 2, under the driving force of drive mechanism, trestle main body moves forward along the bottom roller of movable support mechanism, it is achieved that trestle reach in tunnel, when being moved close to trestle main body centre position, answer the movement of center of gravity need to change the fulcrum position relative to box type girder；
Step 3, fixing supporting mechanism by oil cylinder and is increased joint and is supported in excavation face before making, the upwards support oil cylinder of contraction movement supporting mechanism, movable support mechanism falls on the lower guideway of box type girder, fluid motor-driven bottom roller, movable support mechanism is made to move to box type girder front end, for preparing as fulcrum next time；
Step 4, movable support mechanism at trestle front support to excavated section, trestle main body falls on the upper roller of movable support mechanism, four support oil cylinders extend downwardly from, and regulate voluntarily to movable support mechanism level, making movable support mechanism again as the fulcrum of trestle main body, drive mechanism acts on the concrete in filling face, and box type girder moves forward to operating position next time along upper roller；
Step 5, front lift cylinder, rear lift cylinder work respectively, put down front access bridge, rear access bridge, forward and backward access bridge contact ground, trestle reaches job site situation, just can carry out tunnel excavation, slag tap while, carry out the reinforcing bar binding of inverted arch, concreting work, and form continuous print line production.
The present invention includes following duty:
Duty one, when tunnel uses step excavation construction, the front access bridge of trestle is overlapped on the dregs heap that front end, tunnel excavation is higher, front fixing supporting mechanism is supported in excavation face by increasing joint, now movable support mechanism is on the lower guideway of trestle stand-by, access bridge contact ground behind trestle rear end, trestle main body falls on the traversing cushion block in rear end, drive mechanism is stand-by, between rear traversing cushion block and front fixing supporting mechanism, now implement inverted arch construction and fill construction, i.e. excavation and casting concrete, trestle is as vehicular traffic bridge；
Duty two, when tunnel uses tunneling boring formula excavation construction, by the angle of access bridge before changing, it is achieved before trestle, access bridge is directly overlapped on tunnel excavation face, and other each component locations are with trestle duty one.
The present invention has the following advantages, its simple in construction, and reliability is high, and easy to use, applied widely, the process-cycle is short, transhipment is convenient, assembly is quick, recycling rate of waterused is high, transmutability is strong.Beneficial effect includes: 1. trestle main body uses box girder, crossbeam form, and girder is as on-line operation platform, and structure is compacter, processes relatively easy.2. movable support mechanism is arranged on inside trestle main body, is greatly reduced overall cross dimensions, it is adaptable to single-track tunnel and the construction of double track tunnel, and uses the trestle of more compact structure in double track tunnel, and the region allowing to operation is broader.3. movable support mechanism not only meets fulcrum switching and the walking demand of trestle, additionally it is possible to service hoisting and traction.4. trestle main body can the most suitably be increased or decreased middle node girder, select different spans, the continuous placing requirement of disposable 24 meters of inverted arch can be met, it is also possible to the inverted arch of satisfied 12 meters carries out the requirement of excavation and casting concrete simultaneously, even meets different spans construction requirement.5. when trestle moves, it is not necessary to carry out floor treatment on mobile route, easy to use, quick, do not increase extra work.6. trestle uses all-hydraulic operation, improves work efficiency, has saved cost of labor greatly.7. before trestle, access bridge uses jacking cylinder version, the wide-angle variations of front access bridge, can meet the demand of client's full face tunneling.Trestle main body uses the form that bearing pin connects, dismount, install simple, the transition of very convenient equipment and being again suitable for.
Accompanying drawing explanation
Fig. 1 is trestle schematic diagram.
Fig. 2 box type girder and box crossbeam schematic diagram.
Fig. 3 is movable support mechanism and box type girder connection diagram.
Fig. 4 a is movable support mechanism schematic diagram one.
Fig. 4 b is movable support mechanism schematic diagram two.
Fig. 5 a is movable support mechanism operating diagram one.
Fig. 5 b is movable support mechanism operating diagram two.
Supporting mechanism schematic diagram one is fixed before Fig. 6 a.
Supporting mechanism schematic diagram two is fixed before Fig. 6 b.
Fig. 7 a drive mechanism schematic diagram one.
Fig. 7 b drive mechanism schematic diagram two.
Fig. 8 is front access bridge and front lift cylinder schematic diagram.
Fig. 9 is rear access bridge and rear lift cylinder schematic diagram.
Figure 10 is trestle Construction State.
Figure 11 is that trestle prepares walking states.
Figure 12 is trestle walking process one.
Figure 13 is trestle walking process two.
Figure 14 is trestle walking process three.
Figure 15 is trestle walking completion status.
Figure 16 is movable support mechanism service hoisting center culvert pipe schematic diagram.
Figure 17 is movable support mechanism auxiliary traction effect schematic diagram.
Figure 18 a is the trestle schematic diagram one of different spans.
Figure 18 b is the trestle schematic diagram two of different spans.
Figure 18 c is the trestle schematic diagram three of different spans.
Detailed description of the invention
The invention will be further described for 1 to accompanying drawing 18 below in conjunction with the accompanying drawings, but the embodiment of this self-propelled mobile trestle is not limited thereto, and the replacement carried out in common knowledge as well known to those skilled in the art should include protection domain in.
The present invention includes trestle main body 10 and is separately positioned on the front access bridge 1 of trestle rear and front end, rear access bridge 8, and described trestle main body 10 is by symmetrical two box type girders 4, the box crossbeam 5 of two box type girders 4 of connection front and back arranged；Described box type girder 4, as current work surface, also can cover bridge floor pedal 6 increase friction on box type girder 4 and realize current steady, and pedal 6 also can use the reinforcing rod laid to substitute；
Also include the movable support mechanism 3 being arranged between two box type girders 4, the medial wall of described box type girder 4 arranges upper and lower two closed slides, i.e. upper rail 41 and lower guideway 42, movable support mechanism 3 moves along lower guideway 42, correspondingly, movable support mechanism 3 includes upper roller 31, the bottom roller 32 moved along upper rail 41, lower guideway 42, and bottom roller 32 is driven by hydraulic motor 34, and box type girder 4 moves along upper roller 31；It is additionally provided with support oil cylinder 33 in movable support mechanism 3, the support on different supporting surfaces can be met.This support oil cylinder 33 can be arranged increases joint.Movable support mechanism 3 is U-shaped design, is suspended on the outside of two box type girders 4, and when upper rail 41 contacts with upper roller 31, trestle main body 10 with under 7 effects, with movable support mechanism 3 as fulcrum, drives trestle main body 10 to move forward and backward in drive mechanism；When the support oil cylinder 33 of movable support mechanism 3 extends and touches supporting surface and stress, lower guideway 42 contacts with bottom roller 32, now drives bottom roller 32 that movable support mechanism 3 can be made can to reach the optional position of lower guideway 42.Support oil cylinder 33, in the case of without human assistance, may contract to the inside of movable support mechanism 3, it is possible to stretches out on the filling face of being supported on 400, it is also possible to stretches out in the excavation face 200 being supported on inverted arch.
The box type girder 4 of the described left and right sides is made up of sections, uses bearing pin to connect between sections.
Described trestle main body 10 front bottom end is fixing supporting mechanism 2 before also including, described front fixing supporting mechanism 2 is made up of front oil cylinder 211, front traversing cushion block 212, support means 213；Described front traversing cushion block 212 is arranged on the lower section of trestle main body 10, and is connected with trestle main body 10 by front traversing cushion block 212；Described support means 213 is to be arranged on the support oil cylinder of front traversing cushion block 212 bottom surface, is realized the regulation of upper-lower height by oil cylinder；The most arranged in a crossed manner between described support means 213 have two auxiliary support bars 214；Described support means 213 and the leading portion of front traversing cushion block 212, connect also by the reinforcement 215 arranged.It is embodied as the oil cylinder of transverse shifting, after before meeting, fixing supporting mechanism 2 supports the construction of excavation face 200, trestle main body 10 is capable of the transverse shifting of fixing supporting mechanism 2 before relatively, thus realizes lateral attitude in whole tunnel cross-section, trestle main body 10 front end and move.
Described trestle main body 10 rear end is additionally provided with rear transverse-moving mechanism 71, and described rear transverse-moving mechanism 71 includes rear oil cylinder 711 and rear traversing cushion block 712, and rear traversing cushion block 712 is arranged on the lower section of trestle main body 10, and is connected with trestle main body 10 by rear oil cylinder 711.Relative position between traversing cushion block 712 with trestle main body 10 after being changed by rear oil cylinder 711, can be realized lateral attitude in whole tunnel cross-section, the trestle rear end and move.
As shown in Figure 8, the jacking angle of front access bridge 1 close to 90 degree, can change the angle change of front access bridge 1 greatly, it is adaptable to the excavation of more big cross section and the dregs excavation of trestle front end.
Seeing accompanying drawing 16,17, described movable support mechanism 3 is additionally included on U-shaped transverse section the boom hoisting 35 increased, and or traction apparatus 36.When being embodied as, increasing boom hoisting 35 on the U-shaped transverse section of movable support mechanism 3, this boom hoisting 35 can lift by crane center culvert pipe.In the present embodiment, boom hoisting 35 has the hydraulic jack of hook for front end；The U-shaped transverse section of movable support mechanism 3 increases traction apparatus 36, utilizes the principle of certainly walking of movable support mechanism 3, by other hanging equipments in traction apparatus 36, draw other equipment and go.In the present embodiment, traction apparatus 36 is hanger or otic placode.
It is provided with reinforcement 61 between described bridge floor pedal 6.
Described front lift cylinder 11, rear lift cylinder 81, front oil cylinder 211, rear oil cylinder 711, support oil cylinder 33 is hydraulic drive.
The movement of the present invention comprises the following steps:
Step one is as shown in figure 11, when under trestle, inverted arch construction and filling construction complete, tunnel continues to excavate forward, trestle need to move forward, front access bridge 1, rear access bridge 8 are respectively required for by front lift cylinder 11, rear lift cylinder 81 is liftoff, movable support mechanism 3 at trestle front support to excavation face 200, trestle main body 10 falls on the upper roller 31 of movable support mechanism 3, make movable support mechanism 3 as the fulcrum of trestle main body 10, drive mechanism 7 acts on the concrete in filling face 400, and trestle prepares to travel forward；
Step 2 is as shown in figure 12, under the driving force of drive mechanism 7, trestle main body 10 moves forward along the bottom roller 32 of movable support mechanism 3, achieve trestle reach in tunnel, when being moved close to trestle main body 10 centre position, answer the movement of center of gravity need to change the fulcrum position relative to box type girder 4；
Step 3 is as shown in figure 13, fixing supporting mechanism 2 by oil cylinder and is increased joint and is supported in excavation face 200 before making, the upwards support oil cylinder 33 of contraction movement supporting mechanism 3, movable support mechanism 3 falls on the lower guideway 42 of box type girder 4, hydraulic motor 34 drives bottom roller 32, movable support mechanism 3 is made to move to box type girder 4 front end, for preparing as fulcrum next time；
Step 4 is as shown in figure 14, movable support mechanism 3 at trestle front support to excavated section 200, trestle main body 10 falls on the upper roller 31 of movable support mechanism 3, four support oil cylinders 33 extend downwardly from, and regulate voluntarily to movable support mechanism 3 level, making movable support mechanism 3 again as the fulcrum of trestle main body 10, drive mechanism 7 acts on the concrete in filling face 400, and box type girder 4 moves forward to operating position next time along upper roller 31；
Step 5 is as shown in figure 15, front lift cylinder 11, rear lift cylinder 81 work respectively, put down front access bridge 1, rear access bridge 8, forward and backward access bridge contact ground, trestle reaches job site situation, just can carry out tunnel excavation, slag tap while, carry out the reinforcing bar binding of inverted arch, concreting work, and form continuous print line production.
The present invention includes following duty:
Duty one is as shown in Figure 10, when tunnel uses step excavation construction, the front access bridge 1 of trestle is overlapped on the dregs heap 100 that front end, tunnel excavation is higher, front fixing supporting mechanism 2 is supported in excavation face 200 by increasing joint, now movable support mechanism 3 is on the lower guideway 42 of trestle stand-by, behind trestle rear end, access bridge 8 contacts ground 300, trestle main body 10 falls on the traversing cushion block in rear end 82, drive mechanism 7 is stand-by, between rear traversing cushion block 82 and front fixing supporting mechanism 2, now implement inverted arch construction and fill construction, i.e. excavation and casting concrete, trestle is as vehicular traffic bridge；
Duty two, when tunnel uses tunneling boring formula excavation construction, by the angle of access bridge 1 before changing, it is achieved before trestle, access bridge 1 is directly overlapped on tunnel excavation face 200, and other each component locations are with trestle duty one.
In sum, the invention provides a kind of fully automatic hydraulic trestle, its simple in construction, reliability is high, easy to use, meets more than 24 meters large span constructions, see accompanying drawing 18, box type girder 4 be respectively adopted two-stage nitration, three sections, four sections and connected by bearing pin, applied widely.
Claims (10)
1. box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily, including trestle main body (10) be separately positioned on the front access bridge (1) of trestle rear and front end, rear access bridge (8), is characterized in that:
Described trestle main body (10) is by symmetrical two box type girders (4), the box crossbeam (5) of two box type girders (4) of the connection front and back arranged；Described box type girder (4) is as current work surface；
Also include the movable support mechanism (3) being arranged between two box type girders (4), the medial wall of described box type girder (4) arranges upper and lower two closed slides, i.e. upper rail (41) and lower guideway (42), movable support mechanism (3) is mobile along lower guideway (42), correspondingly, movable support mechanism (3) includes along upper rail (41), the upper roller (31) of lower guideway (42) movement, bottom roller (32), bottom roller (32) is driven by hydraulic motor (34), and box type girder (4) is mobile along upper roller (31)；It is additionally provided with support oil cylinder (33) in movable support mechanism (3), the support on different supporting surfaces can be met.
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
The box type girder (4) of the described left and right sides is made up of sections, uses bearing pin to connect between sections.
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
Described trestle main body (10) front bottom end is fixing supporting mechanism (2) before also including, described front fixing supporting mechanism (2) is made up of front oil cylinder (211), front traversing cushion block (212), support means (213)；Described front traversing cushion block (212) is arranged on the lower section of trestle main body (10), and is connected with trestle main body (10) by front traversing cushion block (212)；Described support means (213) is the support oil cylinder being arranged on front traversing cushion block (212) bottom surface, is realized the regulation of upper-lower height by oil cylinder；The most arranged in a crossed manner between described support means (213) have two auxiliary support bars (214)；Described support means (213) and the leading portion of front traversing cushion block (212), connect also by the reinforcement (215) arranged.
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
Described trestle main body (10) rear end is additionally provided with rear transverse-moving mechanism (71), described rear transverse-moving mechanism (71) includes rear oil cylinder (711) and rear traversing cushion block (712), rear traversing cushion block (712) is arranged on the lower section of trestle main body (10), and is connected with trestle main body (10) by rear oil cylinder (711).
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
Described movable support mechanism (3) is additionally included on U-shaped transverse section the boom hoisting (35) increased.
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
Described movable support mechanism (3) is additionally included on U-shaped transverse section the traction apparatus (36) increased.
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
It is provided with reinforcement (61) between described bridge floor pedal (6).
Box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily the most according to claim 1, is characterized in that:
Described front lift cylinder (11), rear lift cylinder (81), front oil cylinder (211), rear oil cylinder (711), support oil cylinder (33) is hydraulic drive.
9., according to the box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily described in claim 1 to 8, it is characterized in that movement comprises the following steps:
Step one, when under trestle, inverted arch construction and filling construction complete, tunnel continues to excavate forward, trestle need to move forward, front access bridge (1), rear access bridge (8) is respectively required for by front lift cylinder (11), rear lift cylinder (81) is liftoff, movable support mechanism (3) is in trestle front support to excavation face (200), trestle main body (10) falls on the upper roller (31) of movable support mechanism (3), make movable support mechanism (3) as the fulcrum of trestle main body (10), drive mechanism (7) acts on the concrete of filling face (400), trestle prepares to travel forward；
Step 2, under the driving force of drive mechanism (7), trestle main body (10) moves forward along the bottom roller (32) of movable support mechanism (3), achieve trestle reach in tunnel, when being moved close to trestle main body (10) centre position, answer the movement of center of gravity need to change the fulcrum position relative to box type girder (4)；
Step 3, fixing supporting mechanism (2) by oil cylinder and is increased joint and is supported in excavation face (200) before making, the upwards support oil cylinder (33) of contraction movement supporting mechanism (3), movable support mechanism (3) falls on the lower guideway (42) of box type girder (4), hydraulic motor (34) drives bottom roller (32), movable support mechanism (3) is made to move to box type girder (4) front end, for preparing as fulcrum next time；
Step 4, movable support mechanism (3) is in trestle front support to excavated section (200), trestle main body (10) falls on the upper roller (31) of movable support mechanism (3), four support oil cylinders (33) extend downwardly from, and regulate voluntarily to movable support mechanism (3) level, make movable support mechanism (3) again as the fulcrum of trestle main body (10), drive mechanism (7) acts on the concrete of filling face (400), and box type girder (4) moves forward to operating position next time along upper roller (31)；
Step 5, front lift cylinder (11), rear lift cylinder (81) work respectively, put down front access bridge (1), rear access bridge (8), forward and backward access bridge contact ground, trestle reaches job site situation, just can carry out tunnel excavation, slag tap while, carry out the reinforcing bar binding of inverted arch, concreting work, and form continuous print line production.
10., according to the box type girder base-supporting hydraulic pressure inverted arch trestle voluntarily described in claim 1 to 8, it is characterized in that including following duty:
Duty one, when tunnel uses step excavation construction, the front access bridge (1) of trestle is overlapped on the dregs heap (100) that front end, tunnel excavation is higher, front fixing supporting mechanism (2) is supported in excavation face (200) by increasing joint, now movable support mechanism (3) is on the lower guideway (42) of trestle the most stand-by, access bridge (8) contact ground (300) behind trestle rear end, trestle main body (10) falls on the traversing cushion block in rear end (82), drive mechanism (7) is stand-by, between rear traversing cushion block (82) and front fixing supporting mechanism (2), now implement inverted arch construction and fill construction, i.e. excavation and casting concrete, trestle is as vehicular traffic bridge；
Duty two, when tunnel uses tunneling boring formula excavation construction, by the angle of access bridge (1) before changing, it is achieved before trestle, access bridge (1) is directly overlapped on tunnel excavation face (200), and other each component locations are with trestle duty one.
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| CN201610474352.XA CN105952480A (en) | 2016-06-27 | 2016-06-27 | Box girder through type self-propelled hydraulic invert trestle |
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| CN201610474352.XA CN105952480A (en) | 2016-06-27 | 2016-06-27 | Box girder through type self-propelled hydraulic invert trestle |
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| CN108442948A (en) * | 2018-05-17 | 2018-08-24 | 湖南五新模板有限公司 | A kind of two-way traffic inverted arch trestle and construction method |
| CN109183601A (en) * | 2018-10-26 | 2019-01-11 | 河北创恒智能装备科技有限公司 | Telescopic intelligent multifunctional inverted arch trestle and the construction method with the trestle |
| CN110055875A (en) * | 2019-05-22 | 2019-07-26 | 平顶山平煤机煤矿机械装备有限公司 | A kind of driving suspension arrangement from trestle of walking |
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Application publication date: 20160921 |