CN2846480Y - Guide beam type bridging machine for passing through tunnel - Google Patents

Guide beam type bridging machine for passing through tunnel Download PDF

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Publication number
CN2846480Y
CN2846480Y CN 200620115344 CN200620115344U CN2846480Y CN 2846480 Y CN2846480 Y CN 2846480Y CN 200620115344 CN200620115344 CN 200620115344 CN 200620115344 U CN200620115344 U CN 200620115344U CN 2846480 Y CN2846480 Y CN 2846480Y
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CN
China
Prior art keywords
girder
formation machine
bridge formation
supporting leg
leg
Prior art date
Application number
CN 200620115344
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Chinese (zh)
Inventor
史柏生
李栓虎
徐建中
王模公
布鲁诺·马纽恩
刘亚滨
刘利国
于善毅
肖金良
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北京万桥兴业机械有限公司
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Priority to CN 200620115344 priority Critical patent/CN2846480Y/en
Application granted granted Critical
Publication of CN2846480Y publication Critical patent/CN2846480Y/en

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Abstract

The utility model relates to a guide beam type bridging machine for passing through a tunnel, which comprises a main machine frame and a lower guide beam, wherein the main machine frame comprises a main beam. A back turning landing leg, a back landing leg, a front landing leg and an advancing landing leg are orderly installed on the main beam from the back end to the front end. The main beam is provided with a track which is provided with a ran front and a back hanging beam carriers and the middle position is provided with four reels. The lower guide beam is provided with a front landing leg of the lower guide beam, a back landing leg positioned at the back end and a roller landing leg of the lower guide beam. The advancing landing leg of the main beam is supported on the lower guide beam. The machine is suitable for the normal construction of a concrete box beam bridge with a large tonnage, and moreover, the utility model can pass through a double-track tunnel by being carried by a tyre vehicle for conveying beams through automatically reducing the sectional dimension of the bridging machine under the condition of no disassembly, saving the operation time and the production cost. The primary structure member is of a folding type, which can reach the purpose of reducing the transverse width of the cross section and the longitudinal height of the cross section of the bridging machine and the utility model can automatically make room for a box beam to pass through.

Description

Wear tunnel nose girder formula bridge formation machine

Technical field

The utility model relates to bridge support equipment, specifically, relates to a kind of tunnel nose girder formula bridge formation machine of wearing.

Background technology

In the bridge fortune frame construction of routine, adopt Beam transportation vehicle transportation and the construction of independent bridging equipment----bridge formation frame bridge method usually.At present, as carrying out setting up of 32 meters 900 tons of concrete whole opening box girders, usually haulage device adopts the rubber-tyred Beam transportation vehicle, this Beam transportation vehicle will be fed concrete beam under the bridge formation machine, this class bridge formation machine always has a big gate-type (claiming jaw type again) supporting leg, and concrete box girder enters Luo Liang position under the bridge formation machine by the gate-type supporting leg.In the above scheme, bridge formation machine peak comprises that apart from the height of bridge floor the Beam transportation vehicle height adds joist dolly height, concrete box depth of beam, bridge formation machine master girder steel height, hanging beam dolly height, gate-type supporting leg top and connects the height of crossbeam and the safe distance between the moving component, causes the height overall of bridge formation machine must be more than 12 meters.Horizontal maximum size comprises the overall width of case beam, the steel post width of gate-type supporting leg beam side and the safe distance between concrete box flange of beam and the steel post, and overall width must be more than 17.5 meters.

To carrying out the operating mode of setting up of 32 meters 900 tons two-wire whole opening box girder bridges between railway ew line two tunnels, as adopt such scheme, the bridge formation machine is in the cross dimensions that all is far longer than the tunnel aspect height and the width, when building bridge building site transition and when carrying out the setting up of 32 meters two-wire concrete box girders of tunnel face, will run into the problem that is difficult to solve.

Do not considering can also to adopt following measure under construction speed and the construction cost prerequisite:

1. the gate-type supporting leg of traditional bridge formation machine must be dismantled decomposition, and reduces the overall height of bridge formation machine, at width with after highly all satisfying the cross dimensions in tunnel, is packed by Beam transportation vehicle and to pass through the tunnel;

Go out the tunnel face and advance the tunnel face longitudinally certain-length the size of tunnel cross-section is increased, or prolong the stretch base, so that satisfy the requirement of setting up of bridge formation machine on height and the width in the tunnel face.

3. when going out the tunnel face, because of the gate-type supporting leg of needs assembling bridge formation machine, erect-position and the arrangement that then need consider to assemble facility.

This shows, adopt common solution to carry out that the two-wire whole opening box girder sets up and will increase construction working amount, construction cost and engineering time greatly between the tunnel.Obviously, these schemes are not safety, cost-effective solution.

Summary of the invention

The purpose of this utility model is the deficiency that overcomes known technology, and a kind of tunnel nose girder formula bridge formation machine of wearing is provided.

The tunnel nose girder formula bridge formation machine of wearing described in the utility model comprises mainframe and following nose girder.Described mainframe comprises girder, supporting leg, rear support leg, front leg strut and the supporting leg that moves ahead overturn behind the bridge formation machine of installing successively toward front end from the rear end on the girder, have track on girder, it is provided with preceding hanging beam dolly, the back hanging beam dolly of operation, and position is provided with four reels in the middle of it; Described nose girder down has following nose girder front leg strut, is positioned at the lower nose girder rear support leg and the following nose girder roller supporting leg of rear end, and the supporting leg that moves ahead of girder is supported on down on the nose girder.

Described girder comprises longitudinal beam that two cross sections are rectangle and is positioned at the girder horizontal-associate beam that front end is connected two longitudinal beams that the top rail of described back upset supporting leg strides across two longitudinal beams two longitudinal beams are linked.

Described four reels are set in place on the analog bracket in the middle of the girder, and wherein two reels work alone, and two reels are associated in synchronous working together in addition, and the wire rope of each reel links to each other with pulley on the forward and backward hanging beam dolly by the traction seat of girder front end.

Described forward and backward hanging beam dolly is supported on by roller on the track at girder top, connects suspension bracket by wire rope and assembly pulley, and suspension bracket links to each other with concrete box girder by suspension rod.

The upset supporting leg is " O " type supporting leg behind the described girder, become the square shape of a sealing by Bolt Connection by the more piece girder steel, its top rail is linked together by two longitudinal beams of bolt and girder, its lower transverse beam bottom is connected with extensible member, and extensible member is connected with support roller by spherical linkage.

State the girder rear support leg and comprise head tree, connect the horizontal connection dividing plate of each head tree, be positioned at the support cylinder of bottom and the rotary oil cylinder on top.

Described girder front leg strut top is linked together by articulated mounting and girder, the bottom is supported on the bridge pier by the jackscrew supporting leg, comprise support post, the intermediate transverse girder that connects each column, the bearing diagonal frame that is connected with girder, front leg strut access door and the jackscrew supporting leg that is arranged on the front leg strut bottom.

The described bridge formation machine supporting leg top that moves ahead is linked together by bolt and girder front end, and the bottom is connected with mechanism voluntarily by linkwork, and mechanism is connected with the chain and sprocket driving device traction voluntarily.

Described mechanism voluntarily comprises hydraulic motor, chain and sprocket driving device, support roller and collet roller and frame composition, and support roller can be along the top guide rail operation on nose girder top down, and the collet roller can be along the edge of a wing rail operation of nose girder both sides down.

The described cross-sectional form of nose girder down is a rectangle, and its inboard, square-section and the outside are provided with strengthens gusset and floor, and the top guide rail is arranged at its top, and there are edge of a wing rail and lower tracks in both sides.

Described lower nose girder rear support leg top is linked together by bolt and following nose girder, and its underpart is provided with support cylinder, and the support cylinder bottom is equipped with height-adjustable spiral and is supported.

Described nose girder front leg strut top down is linked together by bolt and following nose girder, and its underpart is provided with support cylinder and spiral supports;

Described nose girder roller supporting leg down comprises front wheel supporting leg and rear roller supporting leg), forward and backward roller supporting leg includes bracing or strutting arrangement and automatic running gear respectively.

The tunnel nose girder formula bridge formation machine of wearing described in the utility model, except that being applicable to normally the setting up of large-tonnage concrete box-beam bridge, can also be under situation about not disassembling, by dwindling the sectional dimension of bridge formation machine itself voluntarily, pack by the tire Beam transportation vehicle and to pass through double track tunnel, save the working time greatly, saved cost of production.Its concrete advantage and good effect are as follows:

1. wear the most outstanding characteristics of tunnel nose girder formula bridge formation machine, promptly the upset supporting leg can reach the purpose of the machine cross section transverse width that reduces to build bridge by the method for folding self gate-type structure forwards behind " O " type bridge formation machine by the tunnel time; The upset supporting leg can reach the purpose that reduces the vertical height in bridge formation machine cross section by the method that shortens its scalable column behind " O " type bridge formation machine by the tunnel time simultaneously;

2. wearing nose girder formula bridge formation machine rear support leg top, tunnel is the foldable structure, by the telescopic action of folding oil cylinder, is retracted into horizontal level voluntarily and passes through the space by the outlet beam when feeding beam, to reach the purpose that joist dolly joist sails into.

3. wearing nose girder formula bridge formation machine front leg strut top, tunnel is the foldable structure, can be retracted into horizontal level at the bridge formation machine voluntarily during by the tunnel, so that girder drops to down on the nose girder, reaches the purpose of the vertical height in machine cross section that reduces to build bridge.

4. wear tunnel nose girder formula bridge formation machine lower nose girder rear support leg and two roller supporting legs can support down nose girder in turn, adjust roller supporting leg position repeatedly, thereby extract down nose girder out and allow the purpose of growing the beam room to reach.

Description of drawings

Fig. 1 is a structural representation of wearing tunnel nose girder formula bridge formation machine described in the utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is an A-A sectional view among Fig. 1, the expression bridge formation machine supporting leg profile that moves ahead;

Fig. 4 is a B-B sectional view among Fig. 1, expression bridge formation machine front leg strut profile;

Fig. 5 is a C-C sectional view among Fig. 1, bridge formation machine rear support leg shown in the presentation graphs 1 and upset supporting leg profile

Fig. 6 is a D-D sectional view among Fig. 1; State diagram during bridge formation machine hanging beam trolley hoisting beam shown in the presentation graphs 1;

State profile when Fig. 7 is bridge formation frame beam;

Fig. 8 is that lower nose girder rear support leg is made the time spent sectional drawing;

Fig. 9 is the schematic diagram when the upset supporting leg is folding behind the bridge formation machine;

Figure 10 is the left view of Fig. 9, expression be schematic diagram when the upset supporting leg is folding behind the bridge formation machine;

Figure 11 is before the bridge formation machine is worn the tunnel, the schematic diagram when the forward and backward supporting leg of bridge formation machine rotates to level;

Figure 12 is before the bridge formation machine is worn the tunnel, places the pad schematic diagram when reducing the girder height;

Figure 13 is that Beam transportation vehicle got into schematic diagram under the bridge formation machine before the bridge formation machine was worn the tunnel;

Figure 14 is after the bridge formation machine passes through tunnel, by move ahead supporting leg and the rear support leg schematic diagram of standing again;

Figure 15 is after the bridge formation machine passes through tunnel, and rotates back to front leg strut and rear support leg schematic diagram again;

Figure 16 be the bridge formation machine finish wear the tunnel task after, carry out the preparation schematic diagram of setting a roof beam in place once more;

The specific embodiment

See figures.1.and.2, the tunnel nose girder formula bridge formation machine of wearing described in the utility model comprises mainframe and following nose girder 9.Described mainframe comprises girder 1, on the girder from the rear end toward front end (when so-called front and back ends is meant work, the bridge formation machine is called front end towards an end of direction of advance, the other end is the rear end) upset supporting leg 2, rear support leg 3, front leg strut 4 and the supporting leg 5 that moves ahead behind the bridge formation machine installed successively, on girder 1, has track, it is provided with preceding hanging beam dolly 8, the back hanging beam dolly 7 of operation, and position is provided with four reels 6 in the middle of it.Described nose girder down comprises the following nose girder front leg strut 10 that is positioned at front end, is positioned at the lower nose girder rear support leg 11 and the following nose girder roller supporting leg of rear end.During work, girder 1 front portion is supported on down on the nose girder 9 by the supporting leg 5 that moves ahead, bridge formation machine front leg strut 4 directly is supported on the bridge pier, upset supporting leg 2 is supported on by its support roller 24 and lays on the bridge floor of finishing behind the bridge formation machine, and bridge formation machine rear support leg 3 directly is supported on have been laid on the bridge floor of finishing.

Described nose girder roller supporting leg down comprises front wheel supporting leg 13 and rear roller supporting leg 12, and forward and backward roller supporting leg is respectively arranged with bracing or strutting arrangement and automatic running gear.The front and rear rolling wheel supporting leg can be realized the support of following nose girder and adjust the leave behind purpose of nose girder of position pusher voluntarily.

Referring to Fig. 1,2 and Fig. 4,5, girder 1 holding capacity of tunnel nose girder formula bridge formation machine excessively described in the utility model is less relatively, its rigidity and requirement of strength are all obviously low than existing equipment, comprise longeron 17 that two cross sections are rectangle and are positioned at the girder horizontal-associate beam 18 that front end is connected two longerons.The top rail (19, see Fig. 5) of described back upset supporting leg 2 strides across two longerons 17, and two longitudinal beams 17 are linked.Girder 1 is divided into a plurality of sections, passes through Bolt Connection between sections.

Referring to Fig. 1 and Fig. 2, described four reels 6 are set in place on the carriage that is fixedly connected in the middle of the girder 1, wherein 2 reels work alone, 2 reels are associated in synchronous working together in addition, so that whole jacking system constitutes 3 balance sysmtes, at hanging beam, Yun Liang with when falling beam, can be kept a plane stress all the time like this, make by the box beam and be not subjected to the twisting stress effect by box beam 14.The traction seat 20 of the wire rope of reel by girder 1 front end links to each other with pulley on the front and back hanging beam dolly 7,8.

Referring to Fig. 6, described hanging beam dolly 7,8 is supported on the track at girder 1 top by roller, can vertically walk along girder 1 top, hanging beam dolly 7,8 is connecting suspension bracket 22 by wire rope and assembly pulley 21, and suspension bracket 22 links to each other with concrete box girder 14 by suspension rod 43.When hanging beam dolly 7,8 handling concrete box girders 14 in front and back prepare beam, can accurately adjust the Luo Liang position by vertical and horizontal.

Referring to Fig. 5, Fig. 9, upset supporting leg 2 is " O " type supporting leg behind the described girder.Upset supporting leg in back becomes the square shape of a sealing by the more piece girder steel by Bolt Connection, and its top rail 19 is linked together by two longitudinal beams 17 of bolt and girder.Its lower transverse beam bottom is connected with extensible member 23, and extensible member 23 is connected with support roller 24 by spherical linkage 44.When the bridge formation machine need be by the tunnel time, the both wings 25 of back upset supporting leg are finished the (see figure 9) of overturning forward together with extensible member 23 by spherical linkage 44, to reach the purpose of the machine lateral cross section size that reduces to build bridge.

Referring to Fig. 1, Fig. 4, described girder front leg strut 4 tops are linked together by articulated mounting and girder 1, and the bottom is supported on the bridge pier by jackscrew supporting leg 29.Comprise support post 28, front leg strut upper beam 45, the intermediate transverse girder 27 of connection support post, the bearing diagonal frame 30 that is connected with girder, front leg strut access door 31 and the jackscrew supporting leg 29 that is arranged on the front leg strut bottom.Between front leg strut upper beam 45 and intermediate transverse girder 27, oblique beam 26 is set for gaining in strength.Served as tunnel nose girder formula bridge formation machine voluntarily during via hole, jackscrew supporting leg 29 retractions, bridge formation machine front portion just is supported on down on the nose girder 9 by the supporting leg 5 that moves ahead.When the bridge formation machine is crossed the tunnel, being connected between front leg strut 4 and the bearing diagonal frame 30 be removed rotation respectively and pack up, to reach the purpose that reduces the vertical sectional dimension of bridge formation machine.The bridge formation machine during via hole, be opened front leg strut access door 31 voluntarily, to dodge down nose girder front leg strut 10, finish voluntarily after, close front leg strut access door 31 again to increase the integral rigidity and the stability of bridge formation machine.Front leg strut 4 tops are linked together by articulated mounting and girder 1, can dismantle the connecting pin between them easily, to realize that front leg strut with respect to the girder diverse location, reaches to become and strides the purpose of setting a roof beam in place.

Referring to Fig. 1, Fig. 5, described girder rear support leg 3 comprises head tree 33, connects the horizontal connection dividing plate 32 of each head tree, is positioned at the support cylinder 34 of bottom and rotary oil cylinder 35 (see figure 1)s on top.When Beam transportation vehicle 16 feeding beams or when entering the tunnel, support cylinder 34 relaxes, and by the effect of rotary oil cylinder 35, packs up rear support leg, with reach the case beam from back upset supporting leg 2 by with the purpose that reduces the vertical sectional dimension of bridge formation machine

Referring to Fig. 1 and Fig. 3, described bridge formation machine supporting leg 5 tops that move ahead are linked together by bolt and girder 1 front end, and the bottom is connected with mechanism 39 voluntarily by linkwork 38.Mechanism 39 comprises hydraulic motor, chain and sprocket driving device, support roller 40 and collet roller 41 and frame composition voluntarily, and support roller 40 can be along top guide rail 36 operations on nose girder 9 tops down, and collet roller 41 can be along edge of a wing rail 37 operations of nose girder both sides down; Mechanism 39 can make down nose girder 9 with turning an angle in the horizontal direction between the girder 1, to adapt to the curved section that builds a bridge by the sphere connection of linkwork 38 voluntarily.

Referring to Fig. 1, Fig. 2, Fig. 4 and Fig. 8, the described cross section of nose girder 9 down is a rectangle, and following nose girder 9 is several sections, passes through Bolt Connection between sections.The inboard, square-section of following nose girder 9 and the outside are provided with strengthens gusset and floor, and top guide rail 36 is arranged at its top, and there are edge of a wing rail 37 and lower tracks 46 in both sides.The bridge formation machine supporting leg 5 that moves ahead is connected with edge of a wing rail 37 with top guide rail 36 respectively by roller.Following nose girder is supported on two bridge piers by following nose girder front leg strut 10, is supported on by lower nose girder rear support leg 11 and lays on the bridge floor of finishing.

Described lower nose girder rear support leg 11 tops are linked together by bolt and following nose girder 9, and its underpart is provided with support cylinder, and the support cylinder bottom is equipped with height-adjustable spiral and is supported.Lower nose girder rear support leg 11 main structures are the steel framework, directly are supported on and have laid on the bridge floor of finishing, with enhanced stability.The important effect of lower nose girder rear support leg another one can help down nose girder roller supporting leg to readjust the position so that the holder of roller supporting leg is moved advancing of following nose girder and retreated exactly.

Referring to Fig. 1, the lower tracks 46 of following nose girder is seated in down on the nose girder roller supporting leg 12,13, and the important function of roller supporting leg is exactly to play the effect of disconnected support when moving forward and backward nose girder.

Referring to Fig. 1 and Fig. 3, described nose girder front leg strut 10 tops down are linked together by bolt and following nose girder 9, and its underpart is provided with support cylinder and spiral supports, so that regulate height.

The tunnel nose girder formula bridge formation machine of crossing described in the utility model can adapt to following condition of work:

1 in the regional operation that links to each other of bridge tunnel, and the bridge formation function is passed through double track tunnel, and abutment apart from the tunnel (into and out of) mouthful the time can set a roof beam in place.

2 type bridges such as continuous beam, compound beam and roadbed by and set a roof beam in place

3 operation maximum gradients :≤20 ‰

4 working curve radius: 〉=1400m

5 operating altitude height :≤2000m

6 operating ambient temperatures :-20 ℃~+ 50 ℃

7 working environment maximum wind powers: 8 grades of duties are non-; 12 grades of duties

The process of setting a roof beam in place of wearing tunnel nose girder formula bridge formation machine described in the utility model is as follows: equipment is carried out and is set up preparation, and lower nose girder rear support leg 11 is supported on and has before set up on the bridge floor that finishes stressedly, and bridge formation machine rear support leg 3 is packed up and is horizontal.When Beam transportation vehicle 16 carried after concrete box girder 14 drives to bridge formation machine rear end (rear end is the left end of Fig. 1) along before having set up the bridge floor that finishes, nose girder 9 tail ends under Beam transportation vehicle 16 and the bridge formation machine are finished be connected, note making Beam transportation vehicle and following nose girder to be positioned at same straight line, the joist on the Beam transportation vehicle little 15 carries concrete box girder 14 and directly sails to down predetermined lifting position on the nose girder 9 afterwards.After hanging beam dolly 7,8 was sling concrete box girder, joist dolly 15 returned on the Beam transportation vehicle, and Beam transportation vehicle 16 breaks away from down that nose girders return Liang Chang.Bridge formation machine rear support leg 3 rotates back to stressed once more support behind the upright position.Then, lower nose girder rear support leg 11 relaxes, withdraw from from the rear to allow at the following nose girder of the effect of roller supporting leg 12,13 and grow the beam room, following nose girder is by in the process of room, comprise that repeatedly lower nose girder rear support leg 11 is stressed with the circulation of following nose girder rear roller supporting leg, make rear roller supporting leg more than 12 time by with the chain drive of following nose girder readjust draw behind the position time nose girder after move.Simultaneously, following nose girder front leg strut 10 for can be smoothly by bridge formation machine rear support leg and upset supporting leg, following nose girder front leg strut 10 will receive down that the nose girder front end finishes this process.After treating that whole bridge pier 42 rooms are abdicated, the hanging beam dolly is slowly fallen concrete box girder on the bridge pier 42.To descend the nose girder reach under the cooperation of the supporting leg 5 that moves ahead by lower nose girder rear support leg 11, roller supporting leg 12,13 and bridge formation machine front leg strut 4, bridge formation machine, after nose girder front leg strut 10 supported on next pier to be bridged 42 down, reach finished.Then, crane ' s major girder is under the effect of upset supporting leg 2 behind move ahead supporting leg 5 and the bridge formation machine, open bridge formation machine front leg strut access door, via hole voluntarily, after bridge formation machine front leg strut 4 and following nose girder front leg strut 10 are supported on the same bridge pier 42, move forward down nose girder once more, behind the precalculated position, can prepare to set a roof beam in place next time.

Concrete bridge formation machine is worn the tunnel step and simply is described below:

Step 1: last before the tunnel striden bridge and set up and finish, and following nose girder 9 is under the support of front wheel supporting leg 12, rear roller supporting leg 13 and the supporting leg 5 that moves ahead.To descend nose girder 9 forwards to move by the effect of roller supporting leg, moving to back hanging beam dolly 7 can be to the position of descending nose girder to lift by crane.

Step 2: bridge formation machine rear support leg 3 supports stressed, upset supporting leg crossbeam behind the dismounting bridge formation machine; Upset supporting leg 2 behind the forwards folding bridge formation machine is seen Fig. 9 and Figure 10;

Step 3: adjust the support roller 24 of back upset supporting leg 2, make by reducing bridge formation machine rear support leg oil cylinder 34 that the support roller 24 of upset supporting leg supports stressed behind the bridge formation machine;

Step 4: alleviate supporting leg 5 oil cylinders that move ahead, nose girder is dropped to adjust on the pad 47; Then, make the bridge formation machine supporting leg 5 that moves ahead be supported on down on the nose girder girder is played a supportive role again, rotate bridge formation machine front leg strut 4 simultaneously to horizontal level, referring to Figure 11;

Step 5: remove bridge formation machine rear support leg crossbeam 32, rotation bridge formation machine rear support leg 3 is to horizontal level, referring to Figure 11;

Step 6: with back hanging beam dolly 7,8 nose girder of slinging down, front wheel supporting leg 13 is moved to the adjusting pad pads placement, make front wheel supporting leg 13 support stressed and dismounting adjustment backing plate, make front wheel supporting leg 13 lift 200mm, make the bridge formation machine supporting leg that moves ahead shorten 200mm, place another in the position of roller supporting leg 13 and adjust pad, referring to Figure 12;

Step 7: repeat above step and be about till 3 meters to the bridge floor distance up to following nose girder. (this process also can be finished with auxiliary equipment, with 2 beams and 4 jack.Can shorten working hours in such a way, but the action that will note nose girder under these three liftings is carried out must guaranteeing nose girder and bridge floor keeping parallelism down in the process. at last, following nose girder is apart from about 3 meters of the height of bridge floor);

Step 8: rear roller supporting leg 12 is moved to position as shown in figure 13, Beam transportation vehicle is sailed to down under the nose girder 9; Raise the Beam transportation vehicle girder, make it stressed in following nose girder 9 lower supports, to descend nose girder 9 to be fixed on the Beam transportation vehicle 16, alleviate front wheel supporting leg 13 oil cylinders fully and then remove the adjustment pad, by shortening the vertical height that the extensible member 23 of upset supporting leg behind the bridge formation machine reduces upset supporting leg 2 behind the bridge formation machine, shorten the move ahead vertical height of supporting leg 5 of bridge formation machine simultaneously, drop to down on the nose girder 9 up to crane ' s major girder 1 and (when the process of nose girder is carried out in these two reductions, must guarantee crane ' s major girder and bridge floor keeping parallelism.Referring to Figure 13;

Step 9: all load all act on the Beam transportation vehicle 16, before Beam transportation vehicle starts, need the Beam transportation vehicle short transverse is lifted about 10 centimeters; Beam transportation vehicle is packed and is taken whole system and pass through the tunnel; Beam transportation vehicle carries the bridge formation machine and is parked in the tunnel end;

Step 10:, place another pad in anterior position again, in order to remove nose girder in supported underneath with adjusting the pad pad to making 13 supports of front wheel supporting leg stressed under the nose girder front wheel supporting leg 13 down;

Step 11: upset supporting leg 2 is stressed in the bridge floor upper support after making the bridge formation machine; Beam transportation vehicle 16 is shifted out from the rear; Reduce nose girder horizontal level down with front wheel supporting leg 13 and back hanging beam dolly 7, jack-up bridge formation machine moves ahead upset supporting leg 2 behind supporting leg 5 and the bridge formation machine to keep the parallel of nose girder 9 and ground down simultaneously; (annotate: above three steps must guarantee bridge formation machine and ground keeping parallelism when carrying out);

Step 12: when be positioned at top adjustment pad supported stressed after, just can take the pad of front wheel supporting leg 13 belows away; Repeatedly repeatedly after, reduce down nose girder 9 about 60 centimeters up to distance ground;

Step 13: make down the roller supporting leg of nose girder and lower nose girder rear support leg circulation stressed, adjust roller supporting leg position repeatedly and draw nose girder down, nose girder 9 is moved forward,, finish moving ahead of nose girder down up to nose girder front leg strut first bridge pier upper support outside the tunnel is stressed down.Move ahead supporting leg 5 bridge formation machines forward voluntarily by upset supporting leg 2 behind the bridge formation machine with the bridge formation machine; Move ahead after supporting leg 5 is forwarded to down the nose girder front edge at the bridge formation machine, with bridge formation machine front leg strut and following nose girder anchoring; With move ahead supporting leg 5 of upset supporting leg 2 and bridge formation machine behind the bridge formation machine girder is lifted, see Figure 14;

Step 14: the supporting leg 5 (with its anchoring) that moves ahead that then relaxes, rotate back to bridge formation machine front leg strut 4 again and make their supports stressed with its bearing diagonal frame 30, see Figure 15;

Step 14: rotate back to bridge formation machine rear support leg 3 and make its support stressed; Fold back upset supporting leg 2 behind the bridge formation machine; To descend nose girder 9 forwards to move to position as shown in figure 16 by the effect of roller supporting leg; Now Beam transportation vehicle 16 just once more feeding beam set up, see Figure 16.

Claims (13)

1, wears tunnel nose girder formula bridge formation machine, comprise mainframe and following nose girder, it is characterized in that described mainframe comprises girder (1), supporting leg (2), rear support leg (3), front leg strut (4) and the supporting leg that moves ahead (5) overturn behind the bridge formation machine of installing successively toward front end from the rear end on the girder, on girder (1), has track, it is provided with preceding hanging beam dolly (8), the back hanging beam dolly (7) of operation, and position is provided with four reels (6) in the middle of it; Described nose girder (9) down has following nose girder front leg strut (10), is positioned at the lower nose girder rear support leg (11) and the following nose girder roller supporting leg of rear end, and the supporting leg that moves ahead (5) of girder (1) is supported on down on the nose girder (9).
2, bridge formation machine according to claim 1, it is characterized in that described girder (1) comprises that two cross sections are the longitudinal beam of rectangle (17) and be positioned at the girder horizontal-associate beam (18) that front end is connected two longitudinal beams, the top rail (19) of described back upset supporting leg (2) strides across two longitudinal beams (17) two longitudinal beams (17) is linked.
3, bridge formation machine according to claim 2, it is characterized in that described four reels (6) are set in place on the analog bracket in the middle of the girder (1), wherein two reels work alone, in addition two reels are associated in synchronous working together, and the wire rope of each reel links to each other with pulley on the forward and backward hanging beam dolly (8,7) by the traction seat (20) of girder (1) front end.
4, bridge formation machine according to claim 3, it is characterized in that described forward and backward hanging beam dolly (8,7) is supported on the track at girder (1) top by roller, connect suspension bracket (22) by wire rope and assembly pulley (21), suspension bracket (22) links to each other with concrete box girder (14) by suspension rod (43).
5, bridge formation machine according to claim 4, the supporting leg (2) that it is characterized in that overturning behind the described girder is " O " type supporting leg, become the square shape of a sealing by Bolt Connection by the more piece girder steel, its top rail (19) is linked together by two longitudinal beams (17) of bolt and girder, its lower transverse beam bottom is connected with extensible member (23), and extensible member (23) is connected with support roller (24) by spherical linkage.
6, bridge formation machine according to claim 5 is characterized in that described girder rear support leg (3) comprises head tree (33), connects the horizontal connection dividing plate (32) of each head tree, is positioned at the support cylinder (34) of bottom and the rotary oil cylinder (35) on top.
7, bridge formation machine according to claim 6, it is characterized in that described girder front leg strut (4) top is linked together by articulated mounting and girder (1), the bottom is supported on the bridge pier by jackscrew supporting leg (29), comprise support post (28), the intermediate transverse girder (27) that connects each column, the bearing diagonal frame (30) that is connected with girder, front leg strut access door (31) and be arranged on the jackscrew supporting leg (29) of front leg strut bottom.
8, bridge formation machine according to claim 7, it is characterized in that described bridge formation machine supporting leg (5) top that moves ahead is linked together by bolt and girder (1) front end, the bottom is connected with mechanism (39) voluntarily by linkwork (38), and mechanism (39) is connected with the chain and sprocket driving device traction voluntarily.
9, bridge formation machine according to claim 8, it is characterized in that described mechanism voluntarily (39) comprises hydraulic motor, chain and sprocket driving device, support roller (40) and collet roller (41) and frame composition, support roller (40) can be along top guide rail (36) operation on nose girder (9) top down, and collet roller (41) can be along edge of a wing rail (37) operation of nose girder both sides down.
10, bridge formation machine according to claim 9, it is characterized in that the described cross-sectional form of nose girder (9) down is a rectangle, its inboard, square-section and the outside are provided with strengthens gusset and floor, and top guide rail (36) is arranged at its top, and there are edge of a wing rail (37) and lower tracks (46) in both sides.
11, bridge formation machine according to claim 10 is characterized in that described lower nose girder rear support leg (11) top is linked together by bolt and following nose girder (9), and its underpart is provided with support cylinder, and the support cylinder bottom is equipped with height-adjustable spiral and is supported.
12, bridge formation machine according to claim 11 is characterized in that described nose girder front leg strut (10) top down is linked together by bolt and following nose girder 9, and its underpart is provided with support cylinder and spiral supports;
13, bridge formation machine according to claim 12 is characterized in that described nose girder roller supporting leg down comprises front wheel supporting leg (13) and rear roller supporting leg (12), and forward and backward roller supporting leg includes bracing or strutting arrangement and automatic running gear respectively.
CN 200620115344 2006-05-19 2006-05-19 Guide beam type bridging machine for passing through tunnel CN2846480Y (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101122116B (en) * 2007-09-15 2010-06-02 中铁三局集团有限公司 Tunnel-passing box beam flange plate back pouring method and special die carrier device for the same
CN101851898A (en) * 2010-06-09 2010-10-06 中铁科工集团有限公司 Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof
CN101864736A (en) * 2010-04-29 2010-10-20 郑州市华中建机有限公司 Full-span bridge erection machine for box girder passing through tunnels on passenger dedicated line
CN101736703B (en) * 2009-12-10 2011-04-13 郑州新大方重工科技有限公司 3000t special bridge girder erection machine for integrally erecting 120m-span double-layer four-line steel beam bridge for highway and railway
CN102094394A (en) * 2010-12-30 2011-06-15 徐州徐工铁路装备有限公司 Through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine
CN102979040A (en) * 2012-12-13 2013-03-20 中铁二局股份有限公司 Assembly method of bridge-building machine at exit of tunnel connected with bridge
CN103966954A (en) * 2014-04-18 2014-08-06 中交隧道工程局有限公司 Intra-tunnel girder erection device and method
CN104299506A (en) * 2014-10-21 2015-01-21 西安交通大学 Wide lane-through type bridge erecting machine teaching aid for teaching
CN104594198A (en) * 2014-11-28 2015-05-06 中铁二十三局集团有限公司 Method for erecting parallel box girders in tunnel
CN105862605A (en) * 2016-05-19 2016-08-17 中铁第五勘察设计院集团有限公司 U-shaped beam bridge erection machine with rail distance change self-adaption function
CN108867404A (en) * 2018-09-17 2018-11-23 袁攀峰 The method that lower guide fixed-point sling erecting bridge machine based on front leg strut crosses tunnel
US10214395B2 (en) 2017-07-12 2019-02-26 Da Pan Gantry assembly and a system for replacing single or double railway bridges
CN109680614A (en) * 2018-12-29 2019-04-26 海波重型工程科技股份有限公司 Assembled steel reinforced concrete combined bridge ultra-large type Bridge Erector quick shifting method and equipment
CN110607756A (en) * 2019-10-15 2019-12-24 合肥正浩机械科技有限公司 Connecting structure of main beam and supporting legs of bridge girder erection machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101122116B (en) * 2007-09-15 2010-06-02 中铁三局集团有限公司 Tunnel-passing box beam flange plate back pouring method and special die carrier device for the same
CN101736703B (en) * 2009-12-10 2011-04-13 郑州新大方重工科技有限公司 3000t special bridge girder erection machine for integrally erecting 120m-span double-layer four-line steel beam bridge for highway and railway
CN101864736A (en) * 2010-04-29 2010-10-20 郑州市华中建机有限公司 Full-span bridge erection machine for box girder passing through tunnels on passenger dedicated line
CN101851898A (en) * 2010-06-09 2010-10-06 中铁科工集团有限公司 Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof
CN102094394A (en) * 2010-12-30 2011-06-15 徐州徐工铁路装备有限公司 Through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine
CN102979040A (en) * 2012-12-13 2013-03-20 中铁二局股份有限公司 Assembly method of bridge-building machine at exit of tunnel connected with bridge
CN103966954A (en) * 2014-04-18 2014-08-06 中交隧道工程局有限公司 Intra-tunnel girder erection device and method
CN104299506A (en) * 2014-10-21 2015-01-21 西安交通大学 Wide lane-through type bridge erecting machine teaching aid for teaching
CN104594198A (en) * 2014-11-28 2015-05-06 中铁二十三局集团有限公司 Method for erecting parallel box girders in tunnel
CN105862605A (en) * 2016-05-19 2016-08-17 中铁第五勘察设计院集团有限公司 U-shaped beam bridge erection machine with rail distance change self-adaption function
US10214395B2 (en) 2017-07-12 2019-02-26 Da Pan Gantry assembly and a system for replacing single or double railway bridges
CN108867404A (en) * 2018-09-17 2018-11-23 袁攀峰 The method that lower guide fixed-point sling erecting bridge machine based on front leg strut crosses tunnel
CN109680614A (en) * 2018-12-29 2019-04-26 海波重型工程科技股份有限公司 Assembled steel reinforced concrete combined bridge ultra-large type Bridge Erector quick shifting method and equipment
CN110607756A (en) * 2019-10-15 2019-12-24 合肥正浩机械科技有限公司 Connecting structure of main beam and supporting legs of bridge girder erection machine
CN110607756B (en) * 2019-10-15 2020-11-24 合肥正浩机械科技有限公司 Connecting structure of main beam and supporting legs of bridge girder erection machine

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Address before: 100055, Xicheng District, Beijing new street, No. 2, there are research building, room C, room 232, Beijing Wan Qiao Industrial Machinery Co., Ltd.

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