CN206016825U - Box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle - Google Patents
Box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle Download PDFInfo
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- CN206016825U CN206016825U CN201620642863.3U CN201620642863U CN206016825U CN 206016825 U CN206016825 U CN 206016825U CN 201620642863 U CN201620642863 U CN 201620642863U CN 206016825 U CN206016825 U CN 206016825U
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Abstract
This utility model is related to a kind of box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle, belongs to tunnel inverted arch technical field of construction.Including trestle main body and being separately positioned on the front access bridge of trestle rear and front end, rear access bridge, the trestle main body by symmetrical two box type girders, the box crossbeam of two box type girders of connection for arranging in front and back；The box type girder is used as current work surface, and covers bridge floor pedal on box type girder；Also include the movable support mechanism being arranged between two box type girders, the medial wall of the box type girder arranges upper and lower two closed slides, that is upper rail and lower guideway, movable support mechanism is moved along lower guideway, correspondingly, movable support mechanism includes that upper roller, the bottom roller moved along upper rail, lower guideway, upper roller pass through fluid motor-driven；This utility model has advantages below, its simple structure, and reliability is high, easy to use, applied widely, and the process-cycle is short, transhipment is convenient, assembly is quick, high recycling rate, transmutability are strong.
Description
Technical field
This utility model is related to a kind of box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle, belongs to tunnel inverted arch construction technology
Field.
Background technology
In constructing tunnel, the section-bottom arc of excavation is referred to as inverted arch；And the work progress at tunnel inverted arch position
In, inverted arch trestle need be set up in inverted arch excavation face, connected excavation face and the tunnel rear end fill surface passage of tunnel front end, filled out
Term when face i.e. inverted arch carries out concrete construction is filled, the presence of inverted arch trestle causes tunnel excavation outwards to slag tap with material to hole
Interior transport is not applied by inverted arch and is affected, it is ensured that inverted arch concrete construction is continuous with tunnel excavation while carrying out.But apply at present
Not enough below trestle generally existing used in work：
1. using I-steel Site Welding, weight weight, without dynamical system, movement is in place to be required for digging traditional trestle
Pick machine is carried, although with low cost, but span very little, span too big just cannot usage mining machine carry, apply man-hour requirement frequent
Use power-equipment move, in-convenience in use.
2. dynamical system is installed additional on traditional trestle work structure in part producing producer, make trestle can with automatic moving, though span
Can so reach 12 meters or so, but structures shape its cannot complete inverted arch construction of more large span.
3. part producing producer trestle mitigates main bridge weight using both sides truss with center-aisle structure, further increases
Main spanning degree；The construction length of trestle is enable to reach more than 16 meters.But as truss structure fails further to meet large span
Construction requirement, there is use not convenient.
4. the trestle of currently used large span, often only can be suitably used for a certain specific construction method, especially
The excavation tap cinder construction of inverted arch bottom is taken into account, is needed to increase trestle pedal, is made trestle total length at least increase by more than ten meters,
Need all to return back in the inverted arch fill surface that accomplishes fluently during cleaning bottom ash, one side rollback is bothered very much, on the other hand follow-up ring
Section construction do not allow to be too far apart, feeding and slag tap to produce interferes, without good solution so that trestle should
With by strong influence.
5. the grade more and more higher of current constructing tunnel, is the globality for ensureing inverted arch construction, improves bearing capacity, builds single
Position requires that inverted arch one-off construction length will reach more than 24 meters, with the trestle of existing species at present, it is impossible to realize line production
Constructed.
6. simultaneously, tunnel excavation there has also been the requirement of full face tunneling, for stack for the current requirement in satisfaction construction length
Putting for bridge front end has higher requirement with front access bridge angle position, with the trestle of existing species at present, it is impossible to realize flowing water
Operation is constructed.
7. it is to meet the light-gauge tunnel of single line, it is desirable to have more compact structure, meet the trestle requirement of different spans；Single
Difficulty of construction in threaded list road is bigger, it is desirable to which the automaticity of trestle is higher, and the miscellaneous function having is more；And existing trestle
Structure cannot meet the light-gauge constructing tunnel of single line.
8. for trestle, to meet that the process-cycle is short, transhipment is convenient, assembled quick, high recycling rate, transmutability are strong etc. new
Require, for putting forward higher requirement for new trestle.
Utility model content
This utility model has supplied a kind of box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle, compact conformation, equipment span to fit
With extensive, it is adaptable to single double track tunnel structure, using conveniently, safely, the use of the various working under multiple environment can be met
Require, for overcoming the deficiencies in the prior art.
This utility model is achieved through the following technical solutions, including trestle main body and being separately positioned on trestle rear and front end
Front access bridge, rear access bridge,
The trestle main body by symmetrical two box type girders, the box of two box type girders of connection for arranging in front and back
Crossbeam；The box type girder can also cover the increase friction of bridge floor pedal on box type girder and realize passing through as current work surface
Stable；
Also include that the movable support mechanism being arranged between two box type girders, the medial wall of the box type girder are arranged
Upper and lower two closed slides, i.e. upper rail and lower guideway, movable support mechanism are moved along lower guideway, correspondingly, movable supporting machine
Structure includes upper roller, the bottom roller moved along upper rail, lower guideway, and, by fluid motor-driven, box type girder is along upper for bottom roller
Roller is moved；Support oil cylinder is additionally provided with movable support mechanism, can meet the support on different supporting surfaces.The support oil cylinder can
Section is increased in setting.Movable support mechanism is U-shaped design, is suspended on the outside of two box type girders, when upper rail and upper roller connect
Touch, trestle main body drives trestle main body to move forward and backward in the case where drive mechanism is to act on movable support mechanism as fulcrum；Work as work
When the support oil cylinder elongation of dynamic supporting mechanism touches supporting surface and stress, lower guideway and bottom roller are contacted, and now drive lower rolling
Wheel can enable movable support mechanism reach the optional position of lower guideway.
The box type girder of the left and right sides is made up of sections, is connected using bearing pin between sections.
The trestle body front end bottom fixed supporting mechanism before also including, the front fixed supporting mechanism by front oil cylinder,
Front traversing cushion block, support meanss are constituted；The front traversing cushion block is arranged on the lower section of trestle main body, and by front traversing cushion block with
Trestle main body connects；The support meanss are the support oil cylinder for being arranged on front traversing cushion block bottom surface, are realized by oil cylinder high up and down
The regulation of degree；Also arranged in a crossed manner between the support meanss have two auxiliary support bars；The support meanss and front traversing cushion block
Leading portion, also by arrange reinforcement connection.
The trestle body rear is additionally provided with rear transverse-moving mechanism, and the rear transverse-moving mechanism includes rear oil cylinder and rear traversing pad
Block, afterwards traversing cushion block be arranged on the lower section of trestle main body, and be connected with trestle main body by rear oil cylinder.
The movable support mechanism is additionally included in the boom hoisting that increase on U-shaped transverse section, and or traction apparatuss.
The top surface of the box type girder is additionally provided with bridge floor pedal, to state and be provided with reinforcement between bridge floor pedal.
The front lift cylinder, rear lift cylinder, front oil cylinder, rear oil cylinder, support oil cylinder are hydraulic drive.
This utility model has advantages below, its simple structure, and reliability is high, easy to use, applied widely, processing
Cycle is short, convenient transhipment, assembled quick, high recycling rate, transmutability are strong.Beneficial effect includes：1. trestle main body adopts case
Shape girder, crossbeam form, used as on-line operation platform, structure is compacter for girder, processes relatively easy.2. movable supporting machine
Structure is arranged on the inside of trestle main body, is greatly reduced overall cross dimensions, it is adaptable to the construction of single-track tunnel and double track tunnel,
And the trestle in the double track tunnel using more compact structure, the region for allowing to operate is broader.3. movable support mechanism is not only
Meet fulcrum switching and the walking demand of trestle, additionally it is possible to service hoisting and traction.4. trestle main body suitably can increase according to demand
Add deduct few middle node girder, selects different spans, you can meet the continuous placing requirement of disposable 24 meters of inverted arch, it is also possible to
12 meters of inverted arch is met while carrying out excavating the requirement with casting concrete, or even meet different spans construction requirement.5. trestle
When mobile, without the need for carrying out floor treatment on mobile route, easy to use, quick, do not increase extra work.6. trestle is adopted
All-hydraulic operation is used, work efficiency is improve, cost of labor has greatly been saved.7. before trestle, access bridge is tied using jacking cylinder
Configuration formula, the wide-angle variations of front access bridge can meet the demand of client's full face tunneling.Shape of the trestle main body using bearing pin connection
Formula, dismounting, installs simple, the transition of very convenient equipment and is suitable for again.
Description of the drawings
Fig. 1 is trestle schematic diagram.
Fig. 2 box type girders and box crossbeam schematic diagram.
Fig. 3 is movable support mechanism and box type girder connection diagram.
Fig. 4 a are movable support mechanism schematic diagram one.
Fig. 4 b are movable support mechanism schematic diagram two.
Fig. 5 a are movable support mechanism operating diagram one.
Fig. 5 b are 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 mechanisms schematic diagram one.
Fig. 7 b drive mechanisms 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 statuses.
Figure 16 is movable support mechanism service hoisting center culvert pipe schematic diagram.
Figure 17 is that movable support mechanism auxiliary traction acts on schematic diagram.
Trestle schematic diagrams one of Figure 18 a for different spans.
Trestle schematic diagrams two of Figure 18 b for different spans.
Trestle schematic diagrams three of Figure 18 c for different spans.
Specific embodiment
The utility model is described in further detail for 1 to accompanying drawing 18 below in conjunction with the accompanying drawings, but the reality of this self-propelled mobile trestle
The mode of applying 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.
This utility model includes trestle main body 10 and is separately positioned on front access bridge 1, the rear access bridge 8 of trestle rear and front end, institute
Trestle main body 10 is stated by symmetrical two box type girders 4, the box crossbeam 5 of two box type girders 4 of connection for arranging in front and back；
The box type girder 4 can also cover the increase friction of bridge floor pedal 6 on box type girder 4 and realize current putting down as current work surface
Surely, pedal 6 can also use the reinforcing rod of laying to substitute；
Also include that the movable support mechanism 3 being arranged between two box type girders 4, the medial wall of the box type girder 4 set
Upper and lower two closed slides, i.e. upper rail 41 and lower guideway 42 is put, movable support mechanism 3 is moved along lower guideway 42, correspondingly,
Movable support mechanism 3 includes that upper roller 31, the bottom roller 32 moved along upper rail 41, lower guideway 42, bottom roller 32 pass through hydraulic pressure
Motor 34 drives, and box type girder 4 is moved along upper roller 31；Support oil cylinder 33 is additionally provided with movable support mechanism 3, can be met not
With the support on supporting surface.The support oil cylinder 33 can be arranged increases section.Movable support mechanism 3 is U-shaped design, is suspended on two casees
The outside of type girder 4, when upper rail 41 and upper roller 31 are contacted, trestle main body 10 is propped up with activity in the case where drive mechanism is with 7 effects
Support mechanism 3 is fulcrum, drives trestle main body 10 to move forward and backward；Prop up when the elongation of support oil cylinder 33 of movable support mechanism 3 is touched
When support face and stress, lower guideway 42 and bottom roller 32 are contacted, and now drive bottom roller 32 that movable support mechanism 3 can be enable to reach
The optional position of lower guideway 42.Support oil cylinder 33 may contract to the interior of movable support mechanism 3 in the case of without the need for human assistance
Portion, also extended be supported in fill surface 400, can also stretch out and be supported in the excavation face 200 of inverted arch.
The box type girder 4 of the left and right sides is made up of sections, is connected using bearing pin between sections.
10 front bottom end of trestle main body fixed supporting mechanism 2 before also including, the front fixed supporting mechanism 2 is by front oil
Cylinder 211, front traversing cushion block 212, support meanss 213 are constituted；The front traversing cushion block 212 is arranged on the lower section of trestle main body 10,
And be connected with trestle main body 10 by front traversing cushion block 212；The support meanss 213 are to be arranged on front 212 bottom surface of traversing cushion block
Support oil cylinder, the regulation that upper-lower height is realized by oil cylinder；Also arranged in a crossed manner between the support meanss 213 have two auxiliary
Support bar 214；The support meanss 213 and the leading portion of front traversing cushion block 212, connect also by the reinforcement 215 for arranging.Specifically
The oil cylinder of transverse shifting is embodied as, after fixed supporting mechanism 2 supports the construction of excavation face 200 before meeting, trestle main body 10 can
The transverse shifting of relatively front fixed supporting mechanism 2 is realized, so as to realize horizontal stroke of 10 front end of trestle main body in whole tunnel cross-section
Move to position.The oil cylinder of transverse shifting is embodied as, after before meeting, fixed supporting mechanism 2 supports the construction of excavation face 200,
Trestle main body 10 can realize the transverse shifting of relatively front fixed supporting mechanism 2, so as to realize 10 front end of trestle main body whole
Lateral attitude movement in tunnel cross-section.
10 rear end of trestle main body is additionally provided with rear transverse-moving mechanism 71, and the rear transverse-moving mechanism 71 includes rear oil cylinder 711
With rear traversing cushion block 712, afterwards traversing cushion block 712 be arranged on the lower section of trestle main body 10, and by rear oil cylinder 711 and trestle main body
10 connections.Relative position after being changed by rear oil cylinder 711 between traversing cushion block 712 and trestle main body 10, can achieve trestle rear end
Lateral attitude movement in whole tunnel cross-section.
As shown in figure 8, the jacking angle of front access bridge 1 can be close to 90 degree, can greatly change the angle of front access bridge 1
Degree change, it is adaptable to which the dregs of the excavation of more big cross section and trestle front end is excavated.
Referring to accompanying drawing 16,17, the movable support mechanism 3 is additionally included in the boom hoisting 35 that increase on U-shaped transverse section,
With or traction apparatuss 36.When being embodied as, increase boom hoisting 35, the lifting on the U-shaped transverse section of movable support mechanism 3
Device 35 can lift by crane center culvert pipe.In the present embodiment, boom hoisting 35 is the hydraulic jack that front end has hook；In movable supporting
Increase traction apparatuss 36 on the U-shaped transverse section of mechanism 3, using movable support mechanism 3 from walking principle, other equipment is hung over
In traction apparatuss 36, traction other equipment and row.In the present embodiment, traction apparatuss 36 are hanger or otic placode.
The top surface of the box type girder 4 is additionally provided with bridge floor pedal 6, is provided with reinforcement 61 between bridge floor pedal 6.
The front lift cylinder 11, rear lift cylinder 81, front oil cylinder 211, rear oil cylinder 711, support oil cylinder 33 are hydraulic pressure
Transmission.
Movement of the present utility model is comprised the following steps：
As shown in figure 11, when inverted arch construction under trestle and filling construction are completed, tunnel continues to excavate forward step one, 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 supporting machine
In trestle front support to excavation face 200, trestle main body 10 falls on the upper roller 31 of movable support mechanism 3 structure 3, makes activity
Fulcrum of the support mechanism 3 as trestle main body 10, drive mechanism 7 are acted on the concrete of fill surface 400, and trestle prepares to transport forward
Dynamic；
As shown in figure 12, under the driving force of drive mechanism 7, trestle main body 10 is under movable support mechanism 3 for step 2
Roller 32 is moved forward, it is achieved that reach of the trestle in tunnel, when trestle 10 centre position of main body is moved close to, Ying Chong
The movement of the heart and position of the fulcrum with respect to box type girder 4 need to be changed；
As shown in figure 13, before making, fixed supporting mechanism 2 passes through oil cylinder and increases section to be supported in excavation face 200 step 3,
The support oil cylinder 33 of contraction movement supporting mechanism 3 upwards, movable support mechanism 3 fall on the lower guideway 42 of box type girder 4, hydraulic pressure
Motor 34 drives bottom roller 32, makes movable support mechanism 3 move to 4 front end of box type girder, is to prepare as fulcrum next time.
As shown in figure 14, movable support mechanism 3 is in trestle front support to excavated section 200, trestle main body 10 for step 4
Fall on the upper roller 31 of movable support mechanism 3, four support oil cylinders 33 are extended downwardly from, and are voluntarily adjusted to movable support mechanism
3 levels, make fulcrum of the movable support mechanism 3 again as trestle main body 10, drive mechanism 7 act on the coagulation of fill surface 400
On soil, box type girder 4 moves forward to operating position next time along upper roller 31.
As shown in figure 15, front lift cylinder 11, rear lift cylinder 81 work step 5 respectively, put down front access bridge 1, rear access bridge
8, forward and backward access bridge contacts ground, and trestle reaches job site situation, it is possible to while carrying out the excavation in tunnel, slagging tap, enter
The reinforcing bar colligation of row inverted arch, concreting work, and form continuous line production.
This utility model includes following working condition：
As shown in Figure 10, when tunnel adopts step excavation construction, the front access bridge 1 of trestle is overlapped on tunnel to working condition one
Road front end is excavated on higher dregs heap 100, and front fixed supporting mechanism 2 is supported in excavation face 200 by increasing section, is now lived
Dynamic supporting mechanism 3 is in stand-by on the lower guideway 42 of trestle, and behind trestle rear end the contact of access bridge 8 ground 300, and trestle main body 10 falls
On the traversing cushion block 82 in rear end, drive mechanism 7 is stand-by, now implements to face upward between rear traversing cushion block 82 and front fixed supporting mechanism 2
Arch construction and filling construction, that is, excavate and casting concrete, and trestle is used as vehicular traffic bridge；
Working condition two, when tunnel adopts tunneling boring formula excavation construction, by changing the angle of front access bridge 1, realizes trestle
Front access bridge 1 is directly overlapped on tunnel excavation face 200, and other each component locations are with trestle working condition one.
In sum, this utility model provides a kind of fully automatic hydraulic trestle, and its simple structure, reliability are high, use
Convenient, meet more than 24 meters large spans constructions, referring to 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 (7)
1. box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle, including trestle main body（10）Be separately positioned on trestle rear and front end
Front access bridge（1）, rear access bridge（8）, it is characterized in that：
The trestle main body（10）By symmetrical two box type girders（4）, two box type girders of connection for arranging in front and back（4）
Box crossbeam（5）；The box type girder（4）As current work surface；
Also include being arranged on two box type girders（4）Between movable support mechanism（3）, the box type girder（4）Medial wall
Upper and lower two closed slides, i.e. upper rail are set（41）And lower guideway（42）, movable support mechanism（3）Along lower guideway（42）Move
Dynamic, correspondingly, movable support mechanism（3）Including along upper rail（41）, lower guideway（42）Mobile upper roller（31）, bottom roller
（32）, bottom roller（32）By hydraulic motor（34）Drive；Movable support mechanism（3）Support oil cylinder is inside additionally provided with（33）, can expire
Support of the foot on different supporting surfaces.
2. box type girder base-supporting according to claim 1 voluntarily hydraulic pressure inverted arch trestle, is characterized in that：
The box type girder of the left and right sides（4）It is made up of sections, is connected using bearing pin between sections.
3. box type girder base-supporting according to claim 1 voluntarily hydraulic pressure inverted arch trestle, is characterized in that：
The trestle main body（10）Front bottom end fixed supporting mechanism before also including（2）, the front fixed supporting mechanism（2）By front
Oil cylinder（211）, front traversing cushion block（212）, support meanss（213）Constitute；The front traversing cushion block（212）It is arranged on trestle main body
（10）Lower section, and pass through front traversing cushion block（212）With trestle main body（10）Connection；The support meanss（213）For being arranged on
Front traversing cushion block（212）The support oil cylinder of bottom surface, the regulation that upper-lower height is realized by oil cylinder；The support meanss（213）It
Between also arranged in a crossed manner have two auxiliary support bars（214）；The support meanss（213）With front traversing cushion block（212）Leading portion, also
By the reinforcement for arranging（215）Connection.
4. box type girder base-supporting according to claim 1 voluntarily hydraulic pressure inverted arch trestle, is characterized in that：
The trestle main body（10）Rear end is additionally provided with rear transverse-moving mechanism（71）, the rear transverse-moving mechanism（71）Including rear oil cylinder
（711）With rear traversing cushion block（712）, traversing cushion block afterwards（712）It is arranged on trestle main body（10）Lower section, and pass through rear oil cylinder
（711）With trestle main body（10）Connection.
5. box type girder base-supporting according to claim 1 voluntarily hydraulic pressure inverted arch trestle, is characterized in that：
The movable support mechanism（3）It is additionally included in the boom hoisting that increase on U-shaped transverse section（35）.
6. box type girder base-supporting according to claim 1 voluntarily hydraulic pressure inverted arch trestle, is characterized in that：
The movable support mechanism（3）It is additionally included in the traction apparatuss that increase on U-shaped transverse section（36）.
7. box type girder base-supporting according to claim 1 voluntarily hydraulic pressure inverted arch trestle, is characterized in that：
The box type girder（4）Top surface be additionally provided with bridge floor pedal（6）, bridge floor pedal（6）Between be provided with reinforcement（61）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620642863.3U CN206016825U (en) | 2016-06-27 | 2016-06-27 | Box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620642863.3U CN206016825U (en) | 2016-06-27 | 2016-06-27 | Box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle |
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| CN206016825U true CN206016825U (en) | 2017-03-15 |
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ID=58243090
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620642863.3U Active CN206016825U (en) | 2016-06-27 | 2016-06-27 | Box type girder base-supporting voluntarily hydraulic pressure inverted arch trestle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2745940C1 (en) * | 2020-09-22 | 2021-04-05 | Игнат Игоревич Иванов | Mobile bridge |
-
2016
- 2016-06-27 CN CN201620642863.3U patent/CN206016825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2745940C1 (en) * | 2020-09-22 | 2021-04-05 | Игнат Игоревич Иванов | Mobile bridge |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Huaichen Inventor after: Wang Yabo Inventor after: Cheng Bo Inventor after: Li Ji Inventor after: Mao Chengbao Inventor after: Zhang Weisong Inventor before: Zheng Huaichen Inventor before: Wang Xiangjun Inventor before: Wang Yabo Inventor before: Cheng Bo Inventor before: Li Ji Inventor before: Mao Chengbao Inventor before: Zhang Weisong |