CN103696439A - Immersed tube pouring method - Google Patents
Immersed tube pouring method Download PDFInfo
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- CN103696439A CN103696439A CN201310632497.4A CN201310632497A CN103696439A CN 103696439 A CN103696439 A CN 103696439A CN 201310632497 A CN201310632497 A CN 201310632497A CN 103696439 A CN103696439 A CN 103696439A
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Abstract
The invention relates to the technical field of concrete pouring, in particular to an immersed tube pouring method. The method is characterized in that an immersed tube skeleton is divided into a bottom plate area, a top plate area, two side wall areas and two middle wall areas for pouring by different levels. The pouring method comprises the following steps of S1, pouring the bottom plate area by different levels; S2, pouring the side wall areas and the middle wall areas by different levels, wherein in the pouring process, the pouring surfaces of the middle wall areas are higher than those of the side wall areas; S3, pouring the top plate area after the pouring for the side wall areas and the middle wall areas is finished. The immersed tube skeleton is divided into the bottom plate area, the top plate area, the two side wall areas and the two middle wall areas for pouring by different levels, horizontal layering is realized, one-step molding is achieved, cold seams and construction seams are not produced in the pouring process, and the method is suitable for the concrete pouring of large-standard and large-sized tunnel immersed tubes with high durability.
Description
Technical field
The present invention relates to pouring concrete technical field, relate in particular to a kind of immersed tube pouring procedure.
Background technology
Domestic common Large Precast Members, as T beam, case beam, culvert etc., pouring concrete mostly adopts oblique laminated pouring technique, length and short transverse all artificially subregion pour into a mould as shown in Figure 1, the sectional drawing that in figure, a is prefabricated units, the vertical face figure that b is prefabricated units;
For highly higher prefabricated units, mostly adopt the technique of twice cast, be poured into for the first time certain height (generally, constuction joint answers position to be positioned at the minimum place of the moment of flexure of member under in working order), for the second time casting complete.
Above-mentioned two kinds of pouring procedures define the size of concrete prefabricated element, and second method has produced constuction joint in work progress, for oversize, the high seabed tunnel precast construction of life requirement, traditional laminated pouring and graded casting technique have been difficult to meet the requirement of its design and construction.
Tunnel immersed tube is formed by reinforcing cage concreting, in reinforcing cage process of binding, in it, is provided with internal mold, and the size of the immersed tube after building is generally: be highly about 1200cm, width is about 3800cm, and length is about 2300cm, is large-size concrete prefabricated units.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide a kind of immersed tube pouring procedure, to be suitable for the cast requirement of the tunnel immersed tube that large scale and durability are high.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of immersed tube pouring procedure, immersed tube skeleton is divided into baseplate zone, top panel area, two side wall regions and two middle wall zones and carries out pouring into a mould by different level.
Further, described pouring procedure comprises the following steps:
S1, described baseplate zone is carried out pouring into a mould at many levels;
S2, described side wall region and middle wall zone are carried out pouring into a mould at many levels, described in casting process in the casting area of wall zone higher than the casting area in described side wall region;
S3, after completing the cast of described side wall region and described middle wall zone, described top panel area is poured into a mould.
Further, in described step S1, described baseplate zone is carried out the cast of first floor, the second layer and the 3rd layer, and every layer of height of pouring into a mould is consistent.
Further, described step S2 comprises:
S10, described side wall region and middle wall zone are carried out to the cast of the 4th layer, layer 5, layer 6 and layer 7, complete the cast of chamfered part under described side wall region and middle wall zone;
S20, centering wall zone carry out the cast of the 8th layer, base plate are carried out the cast of the 4th layer simultaneously;
S30, described middle wall zone is carried out to the cast of the 9th layer, the 8th layer of cast carried out in described side wall region simultaneously, guarantee that the casting area of middle wall zone is higher than the casting area in side wall region;
S40, the residue position to be cast in described middle wall zone and described side wall region is poured into a mould until described middle wall zone and described side wall region casting complete simultaneously.
Further, adopt material distributing machine to pour into a mould described baseplate zone, top panel area, side wall region and middle wall zone.
Further, adopt four material distributing machine of being located on immersed tube internal mold to pour into a mould described baseplate zone.
Further, adopt four material distributing machine of being located at described immersed tube skeleton outside to pour into a mould described top panel area, side wall region and middle wall zone.
(3) beneficial effect
A kind of immersed tube pouring procedure provided by the invention, immersed tube skeleton is divided into baseplate zone, top panel area, two side wall regions and two middle wall zones to carry out pouring into a mould by different level, for horizontal slice, can one-shot forming, in casting process, do not produce cold seam and constuction joint etc., be applicable to the pouring concrete of the tunnel immersed tube that large specification, large scale and durability are high.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the oblique laminated pouring technique of prior art;
Fig. 2 is material distributing machine arrangement diagram of the present invention;
Fig. 3 is the schematic diagram of step S1 cast of the present invention;
Fig. 4 is the schematic diagram of step S2 cast of the present invention;
Fig. 5 is the schematic diagram of step S3 cast of the present invention.
In figure: A, immersed tube skeleton; A1, baseplate zone; A2, side wall region; A3, middle wall zone; A4, top panel area.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
The immersed tube that large scale, the high seabed tunnel precast construction of life requirement are used is generally: be highly about 1200cm, width is about 3800cm, and length is about 2300cm, and it generally should have following condition:
(1) tunnel is used for seabed with immersed tube or is embedded in undergroundly, and driving passage is positioned at tube coupling inner side (rather than traditional case beam form, be positioned at upside), and it is larger than conventional case beam size that the cross dimension of tube coupling will become; (2) length of tube coupling is also unsuitable too short because the length of tube coupling more short circuit head quantity will more, the difficulty increase (being mainly joint patching) that joint is processed, the risk of existence is also higher; (3) seabed tunnel life requirement is high, does not allow to occur cold seam and constuction joint etc., must one-time cast-forming.
The present invention, in order to make the tunnel immersed tube after cast possess above-mentioned condition, provides a kind of immersed tube pouring procedure, immersed tube skeleton A is divided into baseplate zone A1, top panel area A4, two side wall region A2 and two middle wall zone A3 and carries out pouring into a mould by different level.
The immersed tube pouring procedure of the embodiment of the present invention comprises the following steps:
As shown in Figure 3, step S1, baseplate zone is carried out pouring into a mould at many levels;
Particularly, in the step S1 of the embodiment of the present invention, baseplate zone is carried out the cast of first floor, the second layer and the 3rd layer, and every layer of height of pouring into a mould is consistent.
As shown in Figure 4, step S2, offside wall zone and middle wall zone carry out pouring into a mould at many levels, and in casting process, the casting area of middle wall zone is higher than the casting area in side wall region;
The step S2 of the present embodiment specifically comprises:
S10, described side wall region and middle wall zone are carried out to the cast of the 4th layer, layer 5, layer 6 and layer 7, complete the cast of chamfered part under described side wall region and middle wall zone;
S20, centering wall zone carry out the cast of the 8th layer, base plate are carried out the cast of the 4th layer simultaneously;
S30, centering wall zone carry out the cast of the 9th layer, and offside wall zone carries out the 8th layer of cast simultaneously, guarantees that the casting area of middle wall zone is higher than the casting area in side wall region;
Pour into a mould until middle wall zone and side wall region casting complete the residue position to be cast in S40, while centering wall zone and side wall region.
As shown in Figure 5, step S3, last, after completing the cast of side wall region and described middle wall zone, pours into a mould top panel area.
As shown in Figure 2, adopt material distributing machine to pour into a mould baseplate zone, top panel area, side wall region and middle wall zone.Adopt four material distributing machine of being located at immersed tube internal mold inside to pour into a mould baseplate zone.Adopt four material distributing machine of being located at immersed tube skeleton outside to pour into a mould top panel area, side wall region and middle wall zone.
The preferred embodiments of the present invention mode: the model of the material distributing machine of cast top panel area, side wall region and middle wall zone is MX32, have four, be respectively MX32-1, MX32-2, MX32-3 and MX32-4, it is arranged in a side of tube coupling, can horizontally rotate and longitudinal extension, its radius can reach 32m; The model of the material distributing machine in bottom board region is RV8, has four, is respectively RV8-1, RV8-2, RV8-3 and RV8-4, and it hangs upside down on the internal mold of runway, can horizontally rotate, and its cloth radius is 8m.In casting process, the cloth direction of material distributing machine is: by far-end to near-end.
The height of every layer of cast of baseplate zone, top panel area, side wall region and middle wall zone is relevant with the size of immersed tube used in immersed tube tunnel, for being highly the immersed tube of 1200cm: the height of every layer of cast can be 20-50cm, is preferably 40cm.
Immersed tube pouring procedure of the present invention is divided into baseplate zone, top panel area, two side wall regions and two middle wall zones by immersed tube skeleton and carries out pouring into a mould by different level, for horizontal slice, can one-shot forming, in casting process, do not produce cold seam and constuction joint etc., be applicable to the pouring concrete of the tunnel immersed tube that large specification, large scale and durability are high.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (7)
1. an immersed tube pouring procedure, is characterized in that, immersed tube skeleton is divided into baseplate zone, top panel area, two side wall regions and two middle wall zones and carries out pouring into a mould by different level.
2. immersed tube pouring procedure as claimed in claim 1, is characterized in that, described pouring procedure comprises the following steps:
S1, described baseplate zone is carried out pouring into a mould at many levels;
S2, described side wall region and middle wall zone are carried out pouring into a mould at many levels, described in casting process in the casting area of wall zone higher than the casting area in described side wall region;
S3, after completing the cast of described side wall region and described middle wall zone, described top panel area is poured into a mould.
3. immersed tube pouring procedure as claimed in claim 2, is characterized in that, in described step S1, described baseplate zone is carried out the cast of first floor, the second layer and the 3rd layer, and every layer of height of pouring into a mould is consistent.
4. immersed tube pouring procedure as claimed in claim 3, is characterized in that, described step S2 comprises:
S10, described side wall region and middle wall zone are carried out to the cast of the 4th layer, layer 5, layer 6 and layer 7, complete the cast of chamfered part under described side wall region and middle wall zone;
S20, centering wall zone carry out the cast of the 8th layer, base plate are carried out the cast of the 4th layer simultaneously;
S30, described middle wall zone is carried out to the cast of the 9th layer, the 8th layer of cast carried out in described side wall region simultaneously, guarantee that the casting area of middle wall zone is higher than the casting area in side wall region;
S40, the residue position to be cast in described middle wall zone and described side wall region is poured into a mould until described middle wall zone and described side wall region casting complete simultaneously.
5. the immersed tube pouring procedure as described in claim 1-4 any one, is characterized in that, adopts material distributing machine to pour into a mould described baseplate zone, top panel area, side wall region and middle wall zone.
6. the immersed tube pouring procedure as described in claim 1-4 any one, is characterized in that, adopts four material distributing machine of being located on immersed tube internal mold to pour into a mould described baseplate zone.
7. the immersed tube pouring procedure as described in claim 1-4 any one, is characterized in that, adopts four material distributing machine of being located at described immersed tube skeleton outside to pour into a mould described top panel area, side wall region and middle wall zone.
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| CN201310632497.4A CN103696439B (en) | 2013-11-29 | 2013-11-29 | A kind of immersed tube pouring procedure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649108A (en) * | 2015-12-24 | 2016-06-08 | 中交上海三航科学研究院有限公司 | Control method for cracks in side wall of pipe gallery box type tunnel |
| CN105839669A (en) * | 2016-03-29 | 2016-08-10 | 中交四航局第二工程有限公司 | Construction method for sinking pipe foundation treatment |
| CN107476343A (en) * | 2017-08-31 | 2017-12-15 | 中交第二航务工程局有限公司 | Rigid connection head grouting construction method |
| CN108951699A (en) * | 2018-06-14 | 2018-12-07 | 上海二十冶建设有限公司 | A kind of mobile internal model of the sectional type of pipe gallery and bracket and its application method |
| CN113898011A (en) * | 2021-10-13 | 2022-01-07 | 中交第四航务工程局有限公司 | Construction method for staged forming of immersed tube sections |
| CN113911271A (en) * | 2021-10-12 | 2022-01-11 | 中交第四航务工程局有限公司 | Immersed tube floating state refuting method |
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| JPH09295313A (en) * | 1996-04-30 | 1997-11-18 | Fudo Constr Co Ltd | Manufacture of immersed tube |
| JP2000319913A (en) * | 1999-05-13 | 2000-11-21 | Taisei Corp | Immersed tunnel construction method |
| JP3135833B2 (en) * | 1995-11-24 | 2001-02-19 | 株式会社奥村組 | How to build underwater structures |
| CN102155022A (en) * | 2011-04-25 | 2011-08-17 | 上海市城市建设设计研究院 | Construction method for immersed tube tunnel pile foundation |
| CN102434719A (en) * | 2011-08-28 | 2012-05-02 | 中国石油天然气集团公司 | Construction technology for hierarchical excavation and pipeline sinking |
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2013
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| JP3135833B2 (en) * | 1995-11-24 | 2001-02-19 | 株式会社奥村組 | How to build underwater structures |
| JPH09295313A (en) * | 1996-04-30 | 1997-11-18 | Fudo Constr Co Ltd | Manufacture of immersed tube |
| JP2000319913A (en) * | 1999-05-13 | 2000-11-21 | Taisei Corp | Immersed tunnel construction method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649108A (en) * | 2015-12-24 | 2016-06-08 | 中交上海三航科学研究院有限公司 | Control method for cracks in side wall of pipe gallery box type tunnel |
| CN105839669A (en) * | 2016-03-29 | 2016-08-10 | 中交四航局第二工程有限公司 | Construction method for sinking pipe foundation treatment |
| CN107476343A (en) * | 2017-08-31 | 2017-12-15 | 中交第二航务工程局有限公司 | Rigid connection head grouting construction method |
| CN108951699A (en) * | 2018-06-14 | 2018-12-07 | 上海二十冶建设有限公司 | A kind of mobile internal model of the sectional type of pipe gallery and bracket and its application method |
| CN108951699B (en) * | 2018-06-14 | 2021-09-21 | 上海二十冶建设有限公司 | Festival segmentation removal centre form and support of utility tunnel |
| CN113911271A (en) * | 2021-10-12 | 2022-01-11 | 中交第四航务工程局有限公司 | Immersed tube floating state refuting method |
| CN113911271B (en) * | 2021-10-12 | 2022-09-16 | 中交第四航务工程局有限公司 | Immersed tube floating state refuting method |
| CN113898011A (en) * | 2021-10-13 | 2022-01-07 | 中交第四航务工程局有限公司 | Construction method for staged forming of immersed tube sections |
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| CN103696439B (en) | 2015-10-28 |
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