CN1880580A - Bridging method by cooperation of temporary bridge and bridge girder erection machine at tunnel exit - Google Patents
Bridging method by cooperation of temporary bridge and bridge girder erection machine at tunnel exit Download PDFInfo
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- CN1880580A CN1880580A CN 200610012353 CN200610012353A CN1880580A CN 1880580 A CN1880580 A CN 1880580A CN 200610012353 CN200610012353 CN 200610012353 CN 200610012353 A CN200610012353 A CN 200610012353A CN 1880580 A CN1880580 A CN 1880580A
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Abstract
The invention relates to a method for building beam on the bridge at the outlet of tunnel, with the bridging machine, wherein it sets auxiliary bridge at the needed hole as the working platform; via longitudinal beam drawing method, sets auxiliary bridge; drawing the flexible beam into the certain position, then dropping them sheet from sheet until laying the bridge surface; the beam carrier carries the bridging machine to the appointed position at the outlet; the carrier lifts the cylinder flexible sheath to lift the bridging machine to the height of bridge beam; returning the beam at the back leg, to connect the temporary leg, detaching the bearing point of front leg, moving back the carrier, to make its cylinder and flexible sheath relative to the bridging machine; lifting the cylinder flexible sheath, detaching the temporary leg, mounting the low beam of back leg with walking platform, using the front and back cranes to crane and detach the auxiliary bridge, to be arranged on the carrier; the carrier carries the beam to the feed position; then using crane to lift the beam to right position. The invention can reduce the cost and save the time.
Description
Technical field
The present invention relates to link to each other with the tunnel beam erecting method in highway section of special line for passenger trains bridge, relate to set up the beam erecting method that adjoining tunnel exit bridge suspension bridge cooperates the bridge formation machine specifically.
Background technology
At present, in the special line for passenger trains highway section that builds a bridge and closely link to each other with the tunnel, if adopt the bridge formation frame to come the inherent stress concrete box-beam at integral erection tunnel exit place, so far at home and abroad beyond example.This is a great problem in special line for passenger trains and the high-speed railway bridge construction, is called as " blocking the way " tiger.Its main cause be the bridge formation machine complete machine height and width big, and the size of tunnel clearance is little, can't pass through.When therefore the bridge formation machine is by the tunnel, must reequip to reduce height and to reduce width, pack reach with special vehicle again, and arrived the tunnel exit place, and then be exactly the spanning (deep valley or great river) that waits to set a roof beam in place; At this moment, because bridge formation captain degree is bigger, the bridge formation machine must put in the tunnel face and reset, erects, and could begin bridging operation.But not enough just because of headroom size in the tunnel, the bridge formation machine can't reset, and does not therefore have and uses.Usually run into this situation, can only change the design scheme of bridge tunnel, widen the distance between tunnel face and the abutment, for example the tunnel face is located massif and strengthened open cut pick length or change bridge shape etc.Obvious this way can increase investment and prolongation cycle.Thereby how to solve the difficult problem of this engineering construction, become a heat subject both domestic and external for a long time.
Summary of the invention
The objective of the invention is for addressing this problem, and provide the easy tunnel exit place bridge suspension bridge of a kind of constructing operation to cooperate the beam erecting method of bridge formation machine.
The present inventor has finished the beam erecting method of tunnel exit of the present invention through studying practice for a long period of time.
Its concrete beam erecting method step is:
A, select six or four formula suspension bridges for use, the vertical bracket beam method that hoist engine forms is set, the anterior outstanding body portion hitch frame of suspension bridge is located on the position, first hole by preceding square pier;
B, by the length of hole frame, remove the counterweight tail boom and transport, suspension bridge is laid and is finished;
Nose girder places the Beam transportation vehicle front end under C, the lifting of bridge formation machine, packs the bridge formation machine by the Beam transportation vehicle low level and goes out the tunnel and pack assigned address on the suspension bridge;
D, fall down nose girder and step up in second, between Beam transportation vehicle and bridge formation machine, original equipment oil cylinder and telescopic are set, with the bridge formation jacking to the operating mode height of setting a roof beam in place;
E, the folding rear support leg top rail that resets also connect interim leg thereon, the front leg strut that turns back, and four the oil cylinder telescopics of withdrawing withdraw from the rear portion of Beam transportation vehicle to the bridge formation machine;
F, at bridge formation machine rear portion two oil cylinder telescopics of jacking once more, remove interim leg, at the rear support leg top rail rear support leg lower transverse beam that has running truck is installed, two the oil cylinder telescopics of withdrawing, rear support leg becomes stressed fulcrum with front leg strut;
G, with forward and backward hanging beam overhead traveling crane lifting suspension bridge, place to return on the Beam transportation vehicle and get beam, prepare to set a roof beam in place;
H, Beam transportation vehicle are got beam and are run to the feeding beam position, run to the preceding hole of tunnel exit by forward and backward hanging beam overhead traveling crane lifting beam and step up beam and put in place, promptly finish preceding hole and stride and set a roof beam in place.
The good effect that beam erecting method of the present invention has is:
1, by above-mentioned beam erecting method, solves present quasi high-speed highway and can not use the bridge formation machine to put in order the difficult problem of the box-girder of integral erection adjoining tunnel exit, hole prestressed concrete, not only saved construction investment, but also shortened the cycle of construction greatly.
2, this beam erecting method has effectively utilized the function of use of bridge formation machine, only need dismounting rear support leg lower transverse beam part, folding top rail part and front leg strut, auxilliary supporting leg, can pass through the tunnel smoothly, need not increase and make any attached special equipment, promptly easy to operate, safe and reliable again.
The specific embodiment
Below in conjunction with the diagram method step of setting a roof beam in place, the present invention is described in further detail.
This bridge formation frame is established the embodiment of the tunnel exit first hole beam:
Fig. 1, adopt vertical bracket beam method, be dragged to the position with the cantilever beam form and fall within piecewise on first hole preceding stepping up six or the four formula beam suspension bridges that fixedly install small-sized electric merit hoist engine traction configuration;
Fig. 2, set up each hole suspension bridge to last slabbing beam and finish, by hole frame length, split out counterweight tail boom (each sheet cantilever beam falls repeatedly with a slice counterweight tail boom) and transport, the suspension bridge laying finishes;
Nose girder places the Beam transportation vehicle front end under Fig. 3, the lifting of bridge formation machine, packs 900t bridge formation machine by the Beam transportation vehicle low level and goes out the tunnel and park to the assigned address on the suspension bridge;
Fig. 4, the following nose girder of lifting is fallen on position, second hole, the two ends of Beam transportation vehicle be provided with four oil cylinders and flexible be placed in set up between, jacking cylinder makes telescopic lifting bridge formation machine on it to the operating mode height of setting a roof beam in place;
Fig. 5, the front leg strut of bridge formation machine set back support on the bridge pier, the rear support leg top rail resets simultaneously, and interim long column leg is set thereon, making thereafter, supporting leg forms a gate-type structure, withdrawal oil cylinder telescopic, withdraw from the rear positions of Beam transportation vehicle to the bridge formation machine, two oil cylinders of startup and telescopic act on the bridge formation machine on the Beam transportation vehicle of bridge formation drive end unit correspondence;
Fig. 6, two oil cylinders of jacking and telescopic lifting bridge formation machine, remove the interim leg of rear support leg, simultaneously, the rear support leg lower transverse beam and the rear support leg top rail integral body that have bridge formation machine running truck are installed are connected and fixed, withdrawal oil cylinder and telescopic make its rear support leg become stressed fulcrum with front leg strut;
Fig. 7, utilize forward and backward hanging beam overhead traveling crane lifting suspension bridge that it is removed, be positioned on the Beam transportation vehicle and return, vacate under-clearance, prepare to set a roof beam in place construction;
Fig. 8, Beam transportation vehicle return to be got beam and runs to end of the bridge feeding beam position, puts in place by the beam that falls to the cross-location of the preceding hole of tunnel exit of the forward and backward hanging beam overhead traveling crane lifting box-shaped concrete beam on the bridge formation machine, has promptly finished setting a roof beam in place that preceding hole strides.
When Bridge Erector erection of second hole position, can by Bridge Erector voluntarily vertical shift in position, second hole, can by Conventional program continues to set a roof beam in place, and need not to use suspension bridge auxiliary.
In the above-mentioned erection method, original when packing Bridge Erector on described oil cylinder and the telescopic beam car Special equipment.
In addition, in the above-mentioned erection method, set up the applied suspension bridge erection method in first hole and select Vertical bracket beam method also can by process conditions and the actual conditions at scene, be selected vertical incremental launching method, the pocket tail Method, scaffold method or cantilever method, or its their compound mode is set up.
In above-mentioned, described rear support leg top rail part can fold, and has so just reduced the width of bridge formation machine.The foldable structure mode of this rear support leg is that to select the inventor's the patent No. for use be technology in 200520135638.2 the utility model patent.
Claims (1)
1, a kind of tunnel exit bridge suspension bridge cooperates the beam erecting method of bridge formation machine, and its method step is:
A, the vertical bracket beam method of employing set up six or four formula suspension bridges in position, first hole;
B, piecewise six or four formula beams are fallen, finish, counterweight afterbody beam is folded down transports back, shop bridge formation face until last slabbing beam;
C, Beam transportation vehicle low level are packed out the tunnel to suspension bridge, and be in place to assigned address;
D, fall down nose girder on position, second hole, at Beam transportation vehicle front and back end jacking cylinder and telescopic lifting bridge formation machine to the operating mode height of setting a roof beam in place;
E, the rear support leg top rail that resets connect interim leg and become the gate-type structure, and the front leg strut that turns back places on the bridge pier, and withdraw simultaneously oil cylinder and telescopic, Beam transportation vehicle retreat to bridge formation machine rear portion, make oil cylinder on it and telescopic corresponding to the bridge formation machine;
F, jacking cylinder and telescopic lifting bridge formation machine are removed the interim leg of rear support leg, and back the lower transverse beam that has bridge formation machine running truck is installed, and withdrawal oil cylinder telescopic makes rear support leg become stressed fulcrum with front leg strut;
G, utilize the forward and backward hanging beam overhead traveling crane lifting of bridge formation machine to remove suspension bridge, place to return on the Beam transportation vehicle and get beam, prepare to set a roof beam in place;
H, Beam transportation vehicle are got beam and are moved to end of the bridge feeding beam position, and it is in place to set up before the tunnel exit position, first hole beam that falls by forward and backward hanging beam overhead traveling crane lifting box-shaped concrete beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012353 CN1880580A (en) | 2006-01-18 | 2006-01-18 | Bridging method by cooperation of temporary bridge and bridge girder erection machine at tunnel exit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012353 CN1880580A (en) | 2006-01-18 | 2006-01-18 | Bridging method by cooperation of temporary bridge and bridge girder erection machine at tunnel exit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1880580A true CN1880580A (en) | 2006-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610012353 Pending CN1880580A (en) | 2006-01-18 | 2006-01-18 | Bridging method by cooperation of temporary bridge and bridge girder erection machine at tunnel exit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144260B (en) * | 2007-09-21 | 2010-06-02 | 北京交通大学 | Prestressing applying method for concrete genuine bridge construction |
| 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 |
| CN105970821A (en) * | 2016-06-06 | 2016-09-28 | 武汉市创先专利技术服务有限公司 | Telescopic beam of bridge plate installation equipment for prefabricated assembly type viaduct |
| CN106555379A (en) * | 2015-09-30 | 2017-04-05 | 中铁十八局集团第四工程有限公司 | Pass through both wired elevated formation level Combined temporary bridge construction methods |
| CN113005911A (en) * | 2021-03-02 | 2021-06-22 | 中交路桥华东工程有限公司 | Bridge girder erection machine assembling method |
| CN113215994A (en) * | 2021-05-11 | 2021-08-06 | 中交路桥华东工程有限公司 | Method for mounting bridge girder erection machine at tunnel outlet |
| WO2022037112A1 (en) * | 2020-08-17 | 2022-02-24 | 中铁十八局集团有限公司 | Device for high-altitude push and vertical movement for 900t bridge girder erection machine |
-
2006
- 2006-01-18 CN CN 200610012353 patent/CN1880580A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144260B (en) * | 2007-09-21 | 2010-06-02 | 北京交通大学 | Prestressing applying method for concrete genuine bridge construction |
| 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 |
| CN106555379A (en) * | 2015-09-30 | 2017-04-05 | 中铁十八局集团第四工程有限公司 | Pass through both wired elevated formation level Combined temporary bridge construction methods |
| CN105970821A (en) * | 2016-06-06 | 2016-09-28 | 武汉市创先专利技术服务有限公司 | Telescopic beam of bridge plate installation equipment for prefabricated assembly type viaduct |
| CN105970821B (en) * | 2016-06-06 | 2017-08-04 | 青岛蓝天创先科技服务有限公司 | Prefabricated assembled overpass bridge plate installs the extensible canopy of equipment |
| WO2022037112A1 (en) * | 2020-08-17 | 2022-02-24 | 中铁十八局集团有限公司 | Device for high-altitude push and vertical movement for 900t bridge girder erection machine |
| CN113005911A (en) * | 2021-03-02 | 2021-06-22 | 中交路桥华东工程有限公司 | Bridge girder erection machine assembling method |
| CN113215994A (en) * | 2021-05-11 | 2021-08-06 | 中交路桥华东工程有限公司 | Method for mounting bridge girder erection machine at tunnel outlet |
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Open date: 20061220 |