CN102345299B - Reusable fabricated end seal method for immersed tube tunnel - Google Patents
Reusable fabricated end seal method for immersed tube tunnel Download PDFInfo
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- CN102345299B CN102345299B CN 201110355975 CN201110355975A CN102345299B CN 102345299 B CN102345299 B CN 102345299B CN 201110355975 CN201110355975 CN 201110355975 CN 201110355975 A CN201110355975 A CN 201110355975A CN 102345299 B CN102345299 B CN 102345299B
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Abstract
The invention relates to the field of construction engineering, in particular to a reusable fabricated end seal method for an immersed tube tunnel. A plurality of girder bracket embedded parts and a plurality of edge seal component embedded parts are pre-embedded in the inner wall of a pipe. The method comprises the following steps of: correspondingly bolting girder brackets to the girder bracket embedded parts one by one; respectively bolting two ends of a support girder to the girder brackets; hermetically welding an edge seal steel plate on the edge seal component embedded parts; plug-welding the gap between the support girder and the edge seal steel plate; and at least arranging one closed annular seal rubber strip at one side surface of a package door panel and then installing the closed door panel on the support girder via bolts so as to ensure that the seal rubber strip is located and compressed between the package door panel and the support girder or the edge seal steel plate and each opening formed between a vertical mounting surface and an edge seal surface is at least surrounded by the closed annular seal rubber strip. The reusable fabricated end seal method for the immersed tube tunnel has the advantage of greatly improving the construction efficiency.
Description
Technical field
The present invention relates to the technological means of constructing tunnel in the building engineering field, be specifically related to a kind of for the reusable assembling end of immersed tube tunnel encapsulation method.
Background technology
There are multiple job practices and corresponding form of structure in the subaqueous tunnel, decades, mainly contain the tunnel that immersed tunnelling method, shield method and mine method are built, wherein nearby, immersed tunnelling method is the abbreviation of prefabricated tube section sinking method, is a kind of job practices in building tunnel, the bottom.Immersed tunnelling method just more and more is subject to people's attention as the method for tunnel construction of wearing Jiang Yuehai reliably.The immersed tunnelling method sequence of construction is at first to make tunnel pipeline section (using banding steel plate and concrete or steel concrete), and the Tunnel Design position is hauled with water under the interim envelope wall sealing back in the pipeline section two ends.In the water-bed groove that pipeline section is sunk down into dig in advance.Pipeline section is by the joint sinking, and water is defeated connection adjacent tubular segments is connected.Remove the envelope wall at last, each pipe joint section is communicated with becomes whole tunnel.Common interim end envelope means once property steel end are sealed up a door and the steel concrete end two kinds of forms of sealing up a door.
1, disposable steel end is sealed up a door, and for guaranteeing the watertightness requirement of tube coupling, disposable steel end is sealed up a door and is welded as a whole to ensure the sealing that is connected with the tube coupling end.Because the steel end area of sealing up a door is bigger, the difficulty of many processing and construction aspect is made and be equipped with to monoblock, thus the steel end general piece in blocks welding assembly at the scene then of making earlier of sealing up a door.The steel end principle that the sheet piece divides of sealing up a door is: sheet piece joint is not too complicated, and every size check and correction is convenient in operation when being convenient to install, and does not change or do not weaken intensity, rigidity and the stress of structure.
2, the steel concrete end is sealed up a door, and adopts shaped steel girder and concrete composite construction usually, and the shaped steel girder is fixed on the pipeline section inwall by the girder steel bracket, makes at tube coupling end formwork erection cast-in-site afterwards.
In above-mentioned two kinds of methods, the advantage that the steel concrete end is sealed up a door is that distortion is little, is easy to antiseep, but cumbersome when removing; And disposable steel end is sealed up a door dress, tear open all and make things convenient for manyly than reinforced concrete grave wall.But these two kinds interim end envelope means all need the opposite end to seal up a door when removing carries out cutting damage, has not only increased engineering cost, and has prolonged the cycle of construction.Still there are not a kind of can realize holding seal up a door modularization assembly unit and the end encapsulation technique of recyclable utilization at present.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part, provide a kind of for the reusable assembling end of immersed tube tunnel encapsulation method, this end encapsulation method is sealed up a door the distinctive end of immersed tube tunnel and is designed by assembling, but from the shaped steel girder to all modularization assembly units of piecemeal steel casement door plate, on-the-spot welding job amount is few, and all detachable back recyclings of all the other steel members except the built-in fitting member.
The object of the invention realizes being finished by following technical scheme:
A kind of for the reusable assembling end of immersed tube tunnel encapsulation method, the enclosed construction that relates to the immersed tube tunnel tube section ends, it is characterized in that the pre-buried some girder bracket built-in fittings in described pipeline section inwall proximal end face place and banding member built-in fitting, described some girder bracket built-in fittings arrange that along the cross section of described tube section ends described banding member built-in fitting arranges continuously along the pipeline section inwall; This method comprises the steps:
At described girder bracket built-in fitting corresponding bolt girder bracket one by one;
The two ends of supporting girder are bolted to respectively on the described girder bracket, have a mounting vertical plane on the described support girder, that finishes bolt supports respectively that mounting vertical plane is positioned at same plane between the girder, and described mounting vertical plane is towards described pipeline section port;
Seal welding banding steel plate on described banding member built-in fitting, described banding steel plate arranges continuously along the pipeline section inwall, described banding steel plate is positioned at same plane towards the banding surface of described pipeline section port and the mounting vertical plane of described support girder, and constitutes the installed surface of described encapsulation door-plate;
Plug welding in the gap that the banding surface of the mounting vertical plane that supports girder and described banding steel plate constitutes;
At sealing door-plate side plate face the sealing joint strip that one ring is closed circular is set at least, afterwards described sealing door-plate is installed on the described installed surface by bolt, make described sealing joint strip between described encapsulation door-plate and described installed surface, and be compressed shape, and each opening that constitutes between described mounting vertical plane and the described banding surface at least by the described sealing joint strip that is closed circular of a ring around wherein.
Also comprise the steps: between the medial surface that supports the girder end and described bracket structure, to fill in and adjust piece and bolt, be positioned at same plane so that respectively support the mounting vertical plane of girder.
Described support girder is arranged in the seam crossing between the encapsulation door-plate at least.
Described encapsulation door-plate is prefastened due to described support girder by bolt.
Described encapsulation door-plate installation site and described pipeline section port have enough distances, to guarantee to dock the dismounting of opening and encapsulate door-plate of back manhole door.
Advantage of the present invention is: can significantly improve efficiency of construction, realize standardized construction; It is more many to reuse number of times, and economic benefit is more good, has saved cost.
Description of drawings
Fig. 1 is embodiment 1 tube coupling end face structure schematic diagram;
Fig. 2 is Fig. 1 B-B sectional drawing;
Fig. 3 is the local enlarged diagram of Fig. 2;
Fig. 4 is Fig. 1 A-A sectional drawing;
Fig. 5 is the local enlarged diagram of Fig. 4;
Fig. 6 is embodiment 2 local enlarged diagrams.
The specific embodiment
Be described in further detail by the feature of the present invention of embodiment and other correlated characteristic below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
, always represent respectively with reference to label 1-15 to shown in Figure 6 as Fig. 1: pipeline section 1, support girder 2, girder bracket 3, girder bracket built-in fitting 4, encapsulation door-plate 5, the outside support banding member 6, banding member built-in fitting 7, screw rod 8, vertically regulate bolt 9, sealing joint strip 10, in every adhesive tape 11, manhole door 12, banding steel plate 13, adjust piece 14, reinforcing rib 15.
Embodiment 1:
Referring to Fig. 1-5, in the present embodiment, be example with the Reinforcement Concrete Sinking, be described in detail for being used for the reusable assembling end of immersed tube tunnel encapsulation method, wherein the section layout of related pipeline section 1 is the porous type layout, and each Prefabricated block structure that uses in its middle-end encapsulation method is as follows:
In the present embodiment, seal up a door equally with common girder steel/concrete composite structure end, the frame construction that some vertically disposed support girders 2 are sealed up a door as end need be set equally.Wherein, be embedded with some girder bracket built-in fittings 4 on the inwall of pipeline section 1 proximal end face.Bolt connects girder bracket 3 on the girder bracket built-in fitting 4, as the bracket structure of fixed support girder 2.The medial surface and 3 of the girder brackets that support girder 2 two ends pass through to adjust piece 14 at interval, and pass through vertically adjusting bolt 9 bolts.In the said structure, supporting girder 2 and girder bracket 3 becomes an independently module, detachable as long as remove connecting bolt when removing.
But different with the girder steel that the concrete end is sealed up a door, the steel structure frame when support girder 2 is not the conduct cast.Referring to Fig. 2, a side that supports girder 2 nearly pipe 1 ports has smooth mounting vertical plane, and the mounting vertical plane of all support girders 2 is in the same plane.And in the above-mentioned syndeton, the purpose that vertical adjusting bolt 9 is set and adjusts piece 14 is just in order to adjust the lengthwise position of support girder 2 in pipeline section 1, and is in the same plane to guarantee all mounting vertical plane that support girders 2.
Except above-mentioned structure, the end seal structure also includes the outside and supports banding member 6 and some encapsulation door-plates 5.
It is fixing by the banding member built-in fitting 7 that is embedded in advance on pipeline section 1 inwall that banding member 6 is supported in the outside.Banding member built-in fitting 7 is welded with one along the continuous banding steel plate 13 of pipeline section 1 inwall for being embedded in the steel loop in the pipeline section 1 in advance on the banding member built-in fitting 7, and is provided with some floors and supports this banding steel plate 13.One side of banding steel plate 13 nearly pipeline section 1 end faces has and supports girder 2 mounting vertical plane and is in conplane smooth banding surface, and this banding surface supports the mounting vertical plane plug welding at girder 2 two ends with each and polish smooth, to constitute continuous plane.Banding surface and mounting vertical plane constitute the installed surface of encapsulation door-plate 5.Since banding steel plate 13 and the outside support 6 welding of banding member, with support the welding of girder 2 two ends, so the banding surface is connected with pipeline section 1 inner wall sealing, and and described support girder 6 between be tightly connected.
Shape and the quantity of encapsulation door-plate 5 depend on the quantity that supports girder 2.Specifically, supporting the mounting vertical plane of girder 2 and the banding surface separation of banding steel plate 13 and constituted some openings, is exactly to seal this opening one by one and the purpose that encapsulates door-plate 5 is set.So the selection of the quantity of encapsulation door-plate 5 should be corresponding with this opening.Encapsulation door-plate 5 shapes are then based on the frame shape of installed surface.For ease of construction, at least one encapsulation door-plate 5 is provided with manhole door 12, and the method to set up of this manhole door 12 and structure are means as well known to those skilled in the art, so do not repeat them here.
Be welded with some reinforcing ribs 15 on the interior plate face of encapsulation door-plate 5, be used for strengthening the intensity of encapsulation door-plate 5.At least one has the junction plate that is parallel to 5 settings of encapsulation door-plate in above-mentioned some reinforcing ribs 15, offers connecting hole on this junction plate.Screw rod 8 is passed through this connecting hole, encapsulation door-plate 5 can be fixed with described support girder 2 bolts, and be pressed together on the installed surface.Support the seam crossing that 2 of girders are arranged in encapsulation door-plate 5 this moment.
For playing the effect that is tightly connected, the nearly outer rim of encapsulation door-plate 5 medial surfaces place fixedly has at least one ring to be the sealing joint strip 10 of closed circular, and sealing joint strip and is compressed shape between described encapsulation door-plate and described installed surface.
Referring to Fig. 1, sealing joint strip 10 shapes are polygonal structure, and its concrete shape then depends on the peripheral shape that encapsulates door-plate 5.Each limit of sealing joint strip 10 is between described encapsulation door-plate 5 and support girder 2 mounting vertical plane or between described encapsulation door-plate 5 and banding steel plate 13 banding surfaces; And the sealing joint strip 10 of any two adjacent encapsulation door-plate 5 seam crossings is arranged on the same support girder 2 simultaneously.And above-mentioned mounting vertical plane and banding surface separate constituted each opening all sealed adhesive tape 10 around wherein.
In conjunction with above-mentioned apparatus structure, the construction sequence of end encapsulation method of the present invention is specific as follows:
When mounted at first at the girder bracket built-in fitting 4 of pipeline section 1 corresponding bolt girder bracket 3 one by one;
Fixed support girder 2 on girder bracket 3 afterwards, and by vertical adjusting bolt 9 with adjust piece 14 and adjust all mounting vertical plane that support girders 2 and be in same plane;
Seal welding banding steel plate 13 on banding member built-in fitting 7, and guarantee that banding steel plate 13 is positioned at same plane towards the banding surface of described pipeline section 1 port and the mounting vertical plane of described support girder 2;
Plug welding in the gap of supporting girder 2 mounting vertical plane and banding steel plate 13 polishes smooth afterwards;
To encapsulate door-plate 5 by screw rod 8 one by one correspondence be installed on and support on the girder 2, and guarantee each encapsulation door-plate 5 each opening of sealing;
After confirming that pipeline section 1 tightness is qualified, end is sealed up a door and is installed.
In when dismounting, between banding member built-in fitting 7 and banding steel plate 13, banding steel plate 13 and supporting weld need cut between the girder 2, the step of the dismounting of other parts when installing carried out reverse operating and got final product.For ease of dismounting and the opening of manhole door 12, dock the clear distance of latter two end between sealing up a door, must guarantee to have enough spaces.
Embodiment 2:
Referring to accompanying drawing 6, basic setup mode and the embodiment 1 of the described end seal structure of present embodiment are roughly the same.Its difference is to support the piecemeal seam crossing that girder 2 not only is arranged in encapsulation door-plate 5, and carried out encryption at encapsulation door-plate 5 middle parts and arranged, namely except having the girder 2 of support at encapsulation door-plate 5 seam crossings, and at the middle part with respect to encapsulation door-plate 5, also be provided with a vertically disposed support girder 2 on the pipeline section 1.Corresponding, in having set up on the medial surface on the encapsulation door-plate 5 every adhesive tape 11.In adhesive tape 11 was located at annular seal adhesive tape 10, its two ends were connected with sealing joint strip 10 and with its separation in described.After encapsulation door-plate 5 is installed, in every adhesive tape 11 at described encapsulation door-plate 5 with support between girder 2 mounting vertical plane.On job practices, present embodiment 2 is identical with embodiment 1.
Although above detailed description by numerous different embodiment describes for technical scheme of the present invention, the scope of law that should be appreciated that this description is limited by the words of appending claims of the present invention.Shape for encapsulation door-plate 5 in above-described embodiment should be construed as merely exemplary with the detailed description that support girder 2 arranges the position, rather than comprises the embodiment that each is possible.Even because exhaustive each possible embodiment be not impossible also be unpractical.So those skilled in the art obviously should recognize, the main points of present embodiment design are: support the load-carrying member that girder 2 is sealed up a door as end, encapsulation door-plate 5 by bolt in supporting on the girder 2, encapsulation door-plate 5 edge portions arrange sealing joint strip 10, sealing joint strip 10 is pressed on banding steel plate 13 and supports girder 2 playing the effect of hermetic seal, thereby realizes the modular dismounting.Under the prerequisite of the design main points that meet above-mentioned end seal structure, when the piecemeal design of encapsulation door-plate 5, can carry out according to the cross section situation of pipeline section 1 reality, guaranteeing under the prerequisite easy to loading and unloading, watertightness according to actual condition requires to select piecemeal quantity and shape, and the weight that should as far as possible guarantee every encapsulation door-plate 5 is approaching, and it is roughly the same namely to encapsulate door-plate 5 areas.Based on above-mentioned piecemeal principle, after the piecemeal quantity and shape of determining encapsulation door-plate 5, determine to support the position of girder 2 according to the seam of encapsulation door-plate 5 amalgamations, and optionally encrypt layout according to operating mode and support girder 2.So the shape of encapsulation door-plate 5 and the description that quantity not only is confined to above-described embodiment, but satisfying under the situation of other conditions, according to concrete operating mode, change arbitrarily and increase and decrease for shape and quantity.Corresponding, cooperate the shape of encapsulation door-plate 5, support that girder 2 can be selected to be horizontally disposed with, alternate setting or other special-shaped set-up modes in length and breadth, and this falls into still within the scope of claims.
Claims (5)
1. one kind is used for the reusable assembling end of immersed tube tunnel encapsulation method, the enclosed construction that relates to the immersed tube tunnel tube section ends, it is characterized in that the nearly two ends of described pipeline section inwall locate pre-buried some girder bracket built-in fittings and banding member built-in fitting, described some girder bracket built-in fittings arrange that along described pipeline section cross section described banding member built-in fitting arranges continuously along the pipeline section inwall; This method comprises the steps:
Corresponding bolt girder bracket one by one on described some girder bracket built-in fittings;
The two ends of supporting girder are bolted to respectively on the described girder bracket, have a mounting vertical plane on the described support girder, the mounting vertical plane that respectively supports girder of finishing bolt is positioned at same plane, and described mounting vertical plane is towards described pipeline section port;
Seal welding banding steel plate on described banding member built-in fitting, described banding steel plate arranges continuously along the pipeline section inwall, described banding steel plate is positioned at same plane towards the banding surface of described pipeline section port and the mounting vertical plane of described support girder, support the mounting vertical plane of girder and the banding surface separation of banding steel plate and constituted some openings, and the purpose that the encapsulation door-plate is set is exactly to seal this opening one by one, and the selection of the quantity of encapsulation door-plate should be corresponding with this opening;
With the affixed described mounting vertical plane of plug welding mode and described banding surface, make it to constitute level and smooth continuous surface;
On encapsulation door-plate side plate face, the sealing joint strip that a ring is closed circular is set at least, afterwards described encapsulation door-plate is installed on the described installed surface by bolt, make described sealing joint strip between described encapsulation door-plate and described installed surface, and be compressed shape, and each opening that constitutes between described mounting vertical plane and the described banding surface at least by the described sealing joint strip that is closed circular of a ring around wherein.
2. according to claim 1 a kind of for the reusable assembling end of immersed tube tunnel encapsulation method, it is characterized in that also comprising the steps: between the medial surface that supports the girder end and described bracket structure, to fill in the adjustment piece, the medial surface of described support girder end and described bracket structure bolt are positioned at same plane so that respectively support the mounting vertical plane of girder.
3. according to claim 1 a kind of for the reusable assembling end of immersed tube tunnel encapsulation method, it is characterized in that: described support girder is arranged in the seam crossing between the encapsulation door-plate, and described support girder also is arranged on the middle part and pipeline section of described encapsulation door-plate.
4. according to claim 1 a kind of for the reusable assembling end of immersed tube tunnel encapsulation method, it is characterized in that: described encapsulation door-plate is prefastened due to described support girder by bolt.
5. according to claim 1 a kind of for the reusable assembling end of immersed tube tunnel encapsulation method, it is characterized in that: described encapsulation door-plate installation site and described pipeline section port have enough distances, to guarantee to dock the dismounting with described encapsulation door-plate of opening of back manhole door.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110355975 CN102345299B (en) | 2011-11-11 | 2011-11-11 | Reusable fabricated end seal method for immersed tube tunnel |
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| CN 201110355975 CN102345299B (en) | 2011-11-11 | 2011-11-11 | Reusable fabricated end seal method for immersed tube tunnel |
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| CN102345299B true CN102345299B (en) | 2013-08-07 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122642B (en) * | 2013-01-30 | 2014-10-29 | 上海市政工程设计研究总院（集团）有限公司 | Construction method of vertical post support change |
| CN104947714A (en) * | 2015-04-24 | 2015-09-30 | 中国交通建设股份有限公司 | End sealing door structure for immersed tube tunnel |
| CN104947708A (en) * | 2015-04-24 | 2015-09-30 | 中国交通建设股份有限公司 | Combined foundation bed for immersed tube tunnels and construction method thereof |
| CN110230502A (en) * | 2019-06-20 | 2019-09-13 | 中铁第四勘察设计院集团有限公司 | A kind of simply-support shield tunnel mid-board mounting structure and method |
| CN111794282A (en) * | 2020-06-09 | 2020-10-20 | 交通运输部广州打捞局 | Mounting method of immersed tube end sealing door |
| CN112031029B (en) * | 2020-08-25 | 2022-03-11 | 广船国际有限公司 | Method for building steel beam corbel of end sealing door of immersed tunnel |
| CN112227417B (en) * | 2020-09-28 | 2022-04-12 | 中船黄埔文冲船舶有限公司 | Construction method for bracket on pipe joint |
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