CN102619526A - Combined sliding plate and rolling frame shield tunneling machine and construction method thereof - Google Patents
Combined sliding plate and rolling frame shield tunneling machine and construction method thereof Download PDFInfo
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- CN102619526A CN102619526A CN2012101034576A CN201210103457A CN102619526A CN 102619526 A CN102619526 A CN 102619526A CN 2012101034576 A CN2012101034576 A CN 2012101034576A CN 201210103457 A CN201210103457 A CN 201210103457A CN 102619526 A CN102619526 A CN 102619526A
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Abstract
The invention discloses a combined sliding plate and rolling frame shield tunneling machine and a construction method thereof. The combined sliding plate and rolling frame shield tunneling machine comprises a frame and a plurality of secondary shields, and each secondary shield consists of a secondary shield retractable frame (9), a tunneling knife (10) and a retractable power source (11). The combined sliding plate and rolling frame shield tunneling machine is characterized by further comprising a sliding plate tail fixing body (16) arranged on an existing structure or roadbed slope needing a jacking structure or a shield jacking end, a sliding plate winding drum (12) is mounted on the inner side of each secondary shield retractable frame (9) and positioned on the rear lower side of the corresponding tunneling knife (10), each secondary shield is provided with a sliding plate (17), and the tail of each sliding plate (17) is fixed onto the sliding plate tail fixing body (16) after the sliding plate (17) is wound around the corresponding sliding plate winding drum (12) from the inside of the corresponding frame. The combined sliding plate and rolling frame shield tunneling machine and the construction method have the advantages that jacking is unlimited by the lengths of structures or rock geological conditions, the jacking length is long, friction resistance is low, and plate breakage is prevented.
Description
Technical field
The present invention relates to a kind of shield machine, particularly relate to a kind of combined frame shield machine, mainly apply to underground frame bridge (culvert) engineering construction in civil works field, the invention still further relates to the job practices of this combined frame shield machine.
Background technology
At capital construction project area, particularly, wear the job practices that existing highway, railway and urban road generally adopt the framework jacking under newly-built highway, railway, the urban road in highway structure and railway construction and urban road construction field.When bigger, and by jacking structure tops covering layer when thin, generally take the jacking of the built on stilts excavation of suspension bridge during following rail wear by the structure of jacking construction; Under generally take to seal and stop the half range highway when wearing highway and carry out open-cut, the operation that this has disturbed existing means of transportation has greatly hindered traffic.For addressing this problem, shield structure technology has obtained attention.In recent years, pipe shed method and bridge-type shield method obtain in some areas adopting, and the tunneling jacking method of frame bridge has obtained certain success, but still have a lot of deficiencies, are mainly reflected in following aspect:
The pipe shed method jacking construction mainly is a deployment tube canopy in advance in the nappe above the jacking frame bridge; With the fixed jacking structure top covering layer soil body; Because pipe canopy drilling direction can not accomplish to be close to the top of jacking structure; Very easily cause the soil body avalanche of Guan Peng bottom, thereby it is serious to cause nappe to sink, causes the existing structure in top to destroy.Lose should producing effect of its tunneling jacking.
Bridge-type planker shield construction is through in shield structure, jacking structure top layer and top overburden (overlying soil), successively slide plate being pulled into; Along with the prolongation of jacking, the slide plate resistance progressively increases, therefore; The jacking limited length of the method, general one deck slide plate draws in length at tens meters; And when adopting the polylith slide plate, because the pull of last square slide causes the existing structure in top to increase deflection again easily.Therefore the multilayer planker can not unrestrictedly increase, and this has also limited the jacking length of frame bridge (culvert).Another problem is: when the top overburden is rock; Because the rock interlock causes frictional resistance to increase; To such an extent as to cause slide plate in shield structure, jacking structure top layer and top overburden (soil layer), to spur, cause the disconnected plate phenomenon that can't remedy, thereby limited should technology utilization.The column leverage of this bridge-type shield structure adopts the quadrangle field Welding besides; Because quadrangle is non-statically determinate structrue; Have certain flexibility in jack-in process medium-height trestle structure, the control that this is unfavorable for the jacking direction is unfavorable for the settlement after construction control on existing road surface after the frame bridge jacking.According to condition of construction in the past, generally between 70mm to 200mm, minimum settlement after construction is 17mm to its settlement after construction, only once.Therefore, utilization bridge-type shield structure is controlled the settlement after construction of existing equipment after being not easy to control the structure jacking.
Summary of the invention
First technical problem to be solved by this invention provides a kind of jacking and not limited by structure length and rock geology, and jacking length is long, and frictional resistance is little, can not produce the combined type slide plate volume shop framework shield machine of disconnected plate phenomenon.
Second technical problem to be solved by this invention provides a kind of job practices of this combined type slide plate volume shop framework shield machine.
In order to solve above-mentioned first technical problem; Combined type slide plate volume provided by the invention shop framework shield machine; Comprise framework and be located at a plurality of sub-shield structure on the described framework; Each described sub-shield structure comprises sub-shield structure telescopic frame, driving cutter and flexible power; Comprise being located at for one and need jacking structure and the existing structure of shield structure jacking end or the tail fixed body on the roadbed side slope; The installed inside of each described sub-shield structure telescopic frame has the slide plate reel of the back lower place that is in described driving cutter, and each described sub-shield structure is equipped with a slide plate, and every described slide plate walks around that the afterbody of described slide plate is fixed on the fixed body of described tail behind the described slide plate reel in the described framework.
Be provided with the lubricating grease spreader of lubricating grease being coated below the described slide plate on the described framework.
At need jacking structure top the drag reduction slide plate is installed.
Described drag reduction slide plate is band steel, steel plate or tetrafluoro plate.
On described framework, be provided with the slide plate weld holder.
Described slide plate reel adopts the adjustable shaft bearing to be installed on the back lower place of the described driving cutter of described sub-shield structure telescopic frame 9 anterior inboards.
On described framework, be provided with slide plate gathering sill with the corresponding transmission of described slide plate.
In order to solve second technical problem, the job practices of use combined frame shield machine provided by the invention, at first prefabricated structure and installation and combination formula framework shield machine; Promptly carry out the structure jacking behind the no problem of examination top, after sub-shield structure buries, slide plate is fixed on the fixed body of tail; Then; Sub-successively shield structure circulation jacking when appearing soon, suitably reduces the each circulation jacking amount of sub-shield structure in jacking; And let the soil excavation space in the place ahead leave certain spatial margin, to avoid that the destruction of causing the existing structure thing is split on soil body top in the place ahead.
Adopt the combined type slide plate volume shop framework shield machine and the job practices thereof of technique scheme; Because having adopted slide plate to face upward to the location is layed between shield structure, jacking structure top layer and the top overburden (overlying soil); The slide plate top contacts with overburden (soil body); The slide plate below contacts with the drag reduction slide plate through lubricating grease; Because the friction factor that the quiet coefficient that rubs that the slide plate top contacts with overburden (soil body) contacts with the drag reduction slide plate through lubricating grease much larger than the slide plate bottom, so slide plate can not move with the jacking of shield structure and structure.Slide plate can not accumulate with the length of structure jacking along the tensile stress of shield driving direction yet, the destruction of the pulling force when slide plate is not easy to receive frame bridge (culvert) jacking.Because slide plate replenishes from driving cutter back space, does not therefore limit the slide plate laying length in theory.Under the situation that increases relay well, utilize the top daraf(reciprocal of farad), the jacking length of its frame bridge (culvert) is unrestricted; Because slide plate is faced upward to the location volume and is laid between shield structure, jacking structure top layer and the top overburden (overlying soil); Slide plate need repeatedly not spur between shield structure, jacking structure top layer and top overburden (overlying soil); Reduced slide plate to greatest extent to the obducent disturbance in top, thereby more helped reducing the infringement of overburden top structure and the control of settlement after construction.
Advantage to sum up; Make this invention can better apply to busy highway; The jacking construction of the frame bridge of railway, station, square and urban road (culvert) has reduced the influence of frame bridge (culvert) jacking construction to traffic to greatest extent, can extensively apply to highway, railway and urban traffic field.
Description of drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front schematic view of the present invention.
Fig. 3 is a vertical view of the present invention.
Fig. 4 is a slide plate laying apparatus sketch map of the present invention.
Fig. 5 is a combined type slide plate volume of the present invention shop framework shield machine construction state elevational schematic view.
Fig. 6 is slide plate volume of the present invention shop process status one sketch map.
Fig. 7 is slide plate volume of the present invention shop process status two sketch mapes.
Fig. 8 is slide plate volume of the present invention shop process status three sketch mapes.
The specific embodiment
Below in conjunction with accompanying drawing and concrete form of construction work the present invention is described further.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, framework comprises bearing beam 1, sectional shelf-unit 2, girder 3, crossbeam 4, the shield structure outside 5, top board 6 and support Internal baffle 7, and sectional shelf-unit 2 can be provided with 2 according to the width of jacking frame bridge (culverts) and shield structure top load condition and arrange at the most.Bearing beam 1 is connected with frame bridge (culvert) 27 bottom built-in fittings through its end junction plate, and bearing beam 1 bottom is concordant with the structure bottom.Bearing beam 1 axis and frame bridge (culvert) 27 jacking parallel axes.Sectional shelf-unit 2 connects through bearing beam top free bearing, adpting flange and welding, vertically is installed on structure forward end side in front, and sectional shelf-unit 2 can highly carry out composite assembly according to frame bridge (culvert) 27; Girder 3 constitutes single support through adpting flange and hinged-support flange and hinged connection the with sectional shelf-unit 2; Can be provided with 2 according to the width of structure and load condition and drain into many row's sectional shelf-units.Crossbeam 4 is installed on 2 and drains on many row's girders 3, and its installation shaft line parallel is end face in structure the place ahead.On framework, be provided with the sub-shield structure of many groups; Sub-shield structure is made up of sub-shield structure outrigger 8, sub-shield structure telescopic frame 9, driving cutter 10, flexible power 11, and sub-shield structure outrigger 8, sub-shield structure telescopic frame 9, driving cutter 10, flexible power 11 can make up setting according to the width of jacking frame bridge (culverts) 27.Sub-shield structure outrigger 8 is installed on girder 3 leading portions through connecting cushion block; Sub-shield structure telescopic frame 9 is installed in the sub-shield structure outrigger 8 top chutes 24, and sub-shield structure telescopic frame 9 can freely stretch forward in chute 24 under the drive of flexible power 11; Driving cutter 10 is installed on top, sub-shield structure telescopic frame 9 the place ahead; Flexible power 11 is installed on the middle beam of sub-shield structure outrigger 8 top chutes, 24 rear portion crossbeams and sub-shield structure telescopic frame 9, the flexible power 11 general hydraulic jacks that adopt.The installed inside of each sub-shield structure telescopic frame 9 has the slide plate reel 12 of the back lower place that is in driving 10; Each sub-shield structure is equipped with a slide plate 17; The afterbody that every slide plate 17 is walked around slide plate reel 12 tail skids 17 in the framework is fixed on the tail fixed body 16; On framework, be provided with slide plate gathering sill 26 with slide plate 17 corresponding transmissions; Slide plate reel 12, slide plate replenish weld holder 15 and can be provided with according to sub-shield structure quantity, and slide plate reel 12 is installed on the back lower place of tunneling cutter 10 through shield structure telescopic frame 9 anterior inboard adjustable shaft bearings 25, and slide plate weld holder 15 is installed on the support at sub-shield structure outrigger 8 rears.Tail fixed body 16 (can adopt steel concrete or steel structure body) is located on existing structure (roadbed) side slope that needs jacking structure and shield structure jacking end, and its bottom surface height is higher than the top of the driving 10 of shield structure.Being provided with the lubricating grease spreader of lubricating grease being coated below the slide plate 17 19 on the framework, at need jacking structure top drag reduction slide plate 18 is installed, drag reduction slide plate 18 is band steel, steel plate or tetrafluoro plate.Slide plate 17, drag reduction slide plate 18, lubricating grease spreader 19 are provided with according to sub-shield structure quantity.Slide plate 17 replenishes weld holder 15, lubricating grease spreader 19, slide plate gathering sill 26, slide plate reel 12 under the pulling of flexible power 11 through slide plate; Because slide plate 17 afterbodys are fixed on the tail fixed body 16, slide plate 17 will be layed between shield structure top board 6, drag reduction slide plate 18 and the overburden (soil body) from inner slide plate 17 location that drive of shield structure body.Simultaneously, lubricating grease spreader 19 is coated slide plate 17 belows with lubricating grease; Drag reduction slide plate 18 is installed on frame bridge (culvert) 27 tops.Frame bridge (culvert) 27 jacking systems are made up of jacking back seat 20, jacking power 21, relay well 22.Relay well 22 can according to how many settings of joint number of need frame bridge (culvert) 27.
Slide plate volume of the present invention shop process status is following:
Referring to Fig. 6, excavation shield structure the place ahead soil body is to chain-dotted line a position, and shield driving face follows up synchronously and excavates the equivalent distance.This moment, slide plate 17 afterbodys were consolidated in tail induration 16.
Referring to Fig. 7: flexible power 11 forward promotor site shield structure telescopic frame 9 the place aheads driving 10 to the place ahead chain-dotted line a; Driving slide plate reel 12 synchronously moves forward; Because slide plate 17 afterbodys are consolidated in tail fixed body 16, the slide plate 17 below in slide plate reel 12 moving process, driving is faced upward slide plate 17 to the location through slide plate gathering sill 16, slide plate reel 12 and is layed between shield structure, frame bridge (culvert) 27 tops and the covering soil body bottom.
Referring to Fig. 8; Under the effect of jacking power 21, frame bridge (culvert) 27 and the jacking forward of shield structure main body, sub-shield structure telescopic frame 9, slide plate reel 12, driving 10 transfixions; Flexible power (oil cylinder) 11 with frame bridge (culverts) 27 and the jacking of shield structure main body by after synchronous forward; Get back to the initial contraction state to sub-shield structure telescopic frame 9, slide plate 17 has been accomplished the laying of one section jacking length Δ L, and the shield structure has been accomplished a jacking circulation.
Adopt jacking frame bridge of the present invention (culvert) job practices to be: at first will be in the outside precast frame bridge (culvert) 27; Precast frame bridge (culvert) 27 o'clock; According to the connection request of shield structure, pre-buried shield structure connector is so that the installation of this shield structure; After concrete strength reaches designing requirement, can carry out the installation of shield structure.Its installation steps are: 1, bearing beam 1 is installed adjustment, and 2, sectional shelf-unit 2 installs adjustment, 3, girder 3 installs adjustment, 4, sub-shield structure outrigger installs, 5, crossbeam 4 installs adjustment, 6, top board 6 installs, 7, shield structure precompressed test.
The precompressed test has problem, and complete machine structure spare is adjusted.Precompressed test meets the demands, and then carries out the installation of sub-shield structure telescopic frame 9, outer side shield 5, hydraulic test and pipeline, geomantic omen pipeline synchronously.After the installation complete machine carried out the examination top of bug check and frame bridge (culvert) 27.Complete machine state such as Fig. 1 after it is installed.
Can carry out frame bridge (culverts) 27 jackings behind the examination top no problem, referring to Fig. 5, after sub-shield structure buried, on the fixed and tail fixed body 16, said according to Fig. 6, Fig. 7 and Fig. 8 then, jacking successively circulated with slide plate 17., suitably reduce each circulation jacking amount, and let the soil excavation space in the place ahead leave certain spatial margin when appearing soon in jacking, to avoid that the destruction of causing the existing structure thing is split on soil body top in the place ahead.
The characteristic that need further specify is following:
Built-up pillar 2 is by the more piece unit combination, adjusts the height of sectional shelf-unit 2 through the combination of unit, to adapt to different frame bridge height and different loads.
Claims (8)
1. a combined type slide plate volume is spread the framework shield machine; Comprise framework and be located at a plurality of sub-shield structure on the described framework; Each described sub-shield structure comprises sub-shield structure telescopic frame (9), driving cutter (10) and flexible power (11); It is characterized in that: comprise being located at for one needing jacking structure and the existing structure of shield structure jacking end or the tail fixed body (16) on the roadbed side slope; The installed inside of each described sub-shield structure telescopic frame (9) has the slide plate reel (12) of the back lower place that is in described driving cutter (10); Each described sub-shield structure is equipped with a slide plate (17), and the afterbody that every described slide plate (17) is walked around described slide plate reel (12) the described slide plate in back (17) in the described framework is fixed on the described tail fixed body (16).
2. combined type slide plate volume according to claim 1 shop framework shield machine is characterized in that: on described framework, be provided with the lubricating grease spreader (19) of lubricating grease being coated described slide plate (17) below.
3. combined type slide plate volume according to claim 1 and 2 shop framework shield machine is characterized in that: at need jacking structure top drag reduction slide plate (18) is installed.
4. combined type slide plate volume according to claim 3 shop framework shield machine, it is characterized in that: described drag reduction slide plate (18) is band steel, steel plate or tetrafluoro plate.
5. combined type slide plate volume according to claim 1 and 2 shop framework shield machine is characterized in that: on described framework, be provided with slide plate weld holder (15).
6. combined type slide plate volume according to claim 1 and 2 shop framework shield machine, it is characterized in that: described slide plate reel (12) adopts adjustable shaft bearing (25) to be installed on the back lower place of the described driving cutter (10) of the anterior inboard of described sub-shield structure telescopic frame (9).
7. combined type slide plate volume according to claim 1 and 2 shop framework shield machine is characterized in that: on described framework, be provided with the slide plate gathering sill (26) with the corresponding transmission of described slide plate (17).
8. use the job practices of the described combined type slide plate volume of claim 1 shop framework shield machine, it is characterized in that: at first prefabricated structure and installation and combination formula framework shield machine, promptly carry out the structure jacking behind the no problem of examination top; After sub-shield structure buries; Slide plate (17) is fixed on the tail fixed body (16), then, sub-successively shield structure circulation jacking; In jacking when appearing soon; Suitably reduce the each circulation jacking amount of sub-shield structure, and let the soil excavation space in the place ahead leave certain spatial margin, to avoid that the destruction of causing the existing structure thing is split on soil body top in the place ahead.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101034576A CN102619526A (en) | 2012-04-10 | 2012-04-10 | Combined sliding plate and rolling frame shield tunneling machine and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101034576A CN102619526A (en) | 2012-04-10 | 2012-04-10 | Combined sliding plate and rolling frame shield tunneling machine and construction method thereof |
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| CN102619526A true CN102619526A (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101034576A Pending CN102619526A (en) | 2012-04-10 | 2012-04-10 | Combined sliding plate and rolling frame shield tunneling machine and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502042A (en) * | 2020-10-27 | 2021-03-16 | 中建三局基础设施建设投资有限公司 | Construction method for improving jacking efficiency of large frame bridge |
| CN114320393A (en) * | 2022-01-05 | 2022-04-12 | 中铁工程装备集团有限公司 | Supporting structure, tunneling system and tunneling method |
| CN116556233A (en) * | 2023-05-25 | 2023-08-08 | 中建国际城市建设有限公司 | Raft plate self-anchored box culvert pushing device for high slope |
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| SU483530A1 (en) * | 1973-04-11 | 1975-09-05 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Mobile mechanized roof-free lining |
| CN2298276Y (en) * | 1997-04-08 | 1998-11-25 | 许宝根 | Combined load-carrying sliding backplate jacking lance structure |
| JP2005330667A (en) * | 2004-05-18 | 2005-12-02 | Kajima Corp | Two-stage pipe-jacking construction method and connector |
| CN1807838A (en) * | 2005-10-31 | 2006-07-26 | 胡麓山 | Bridge type shield construction method for box type bridge |
| CN202560236U (en) * | 2012-04-10 | 2012-11-28 | 株洲市明超建筑劳务有限公司 | Combination type sliding plate rolling paving frame shield tunneling machine |
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2012
- 2012-04-10 CN CN2012101034576A patent/CN102619526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU483530A1 (en) * | 1973-04-11 | 1975-09-05 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Mobile mechanized roof-free lining |
| CN2298276Y (en) * | 1997-04-08 | 1998-11-25 | 许宝根 | Combined load-carrying sliding backplate jacking lance structure |
| JP2005330667A (en) * | 2004-05-18 | 2005-12-02 | Kajima Corp | Two-stage pipe-jacking construction method and connector |
| CN1807838A (en) * | 2005-10-31 | 2006-07-26 | 胡麓山 | Bridge type shield construction method for box type bridge |
| CN202560236U (en) * | 2012-04-10 | 2012-11-28 | 株洲市明超建筑劳务有限公司 | Combination type sliding plate rolling paving frame shield tunneling machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502042A (en) * | 2020-10-27 | 2021-03-16 | 中建三局基础设施建设投资有限公司 | Construction method for improving jacking efficiency of large frame bridge |
| CN114320393A (en) * | 2022-01-05 | 2022-04-12 | 中铁工程装备集团有限公司 | Supporting structure, tunneling system and tunneling method |
| CN116556233A (en) * | 2023-05-25 | 2023-08-08 | 中建国际城市建设有限公司 | Raft plate self-anchored box culvert pushing device for high slope |
| CN116556233B (en) * | 2023-05-25 | 2023-10-20 | 中建国际城市建设有限公司 | Raft plate self-anchored box culvert pushing device for high slope |
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Application publication date: 20120801 |