CN105019474A - Reconstruction structure and method for tunnels - Google Patents

Reconstruction structure and method for tunnels Download PDF

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Publication number
CN105019474A
CN105019474A CN201510453291.4A CN201510453291A CN105019474A CN 105019474 A CN105019474 A CN 105019474A CN 201510453291 A CN201510453291 A CN 201510453291A CN 105019474 A CN105019474 A CN 105019474A
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wall
section
tunnel
variable cross
type
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CN201510453291.4A
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CN105019474B (en
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姜炯
刘发前
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SHANGHAI URBAN TRANSPORTATION DESIGN INSTITUTE Co.,Ltd.
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Abstract

The invention relates to a reconstruction structure and method for tunnels. The integral tunnel and two adjacent separating tunnels are connected through a structure transition section. In the structure transition section, two walls arranged through a Y-shaped variable cross-section wall are correspondingly connected with two adjacent side walls arranged in the two separating tunnels in a spaced mode by a certain distance; a single wall arranged through the Y-shaped variable cross-section wall is correspondingly connected with a middle partition wall arranged between two adjacent rooms in the integral tunnel. According to the reconstruction structure and method for the tunnel, the construction structure is made to be more economical and reasonable, and the engineering amount can be reduced to the maximum degree.

Description

A kind of reconstruction structure of tunnel and reconstruction method thereof
Technical field
The present invention relates to a kind of reconstruction structure and reconstruction method thereof of tunnel.
Background technology
Compared to viaduct, genuine do not take ground resource, feature that landscape effect is good because of it, be used widely in the rapid transformation of urban road.Single-box multi-cell integral frame structure due to advantages such as its mechanical characteristic are good, floor space is little, underpass form first-selected often.But consider the factors such as the demand of the distribution of present situation underground building, engineering time phasing in Practical Project, part tunnel is still designed to several separate type single box single chamber frame constructions.Along with the development in city, transport need increases day by day, and above-mentioned separate type tunnel needs original place to reconstruct and extends (being referred to as reconstruction below).
During genuine reconstruction, should at utmost utilize existing underpass, under normal circumstances, the structure in reconstruction tunnel should be consistent with road, original place, with the continuity that holding structure is stressed.But, under the prerequisite that engineering specifications allows, if the genuine monolithic construction that can adopt single-box multi-cell of reconstruction, excavation of foundation pit area can be reduced, save the concrete depressed place work amount of underpass, reduce construction costs.Based on this imagination, as how a kind of construction method, existing separate type is genuine to be effectively connected with the monolithic of reconstruction is genuine, to guarantee not leak between the two, differential settlement etc., be the problem needing solution badly.
Summary of the invention
The present invention is intended to the reconstruction structure and the reconstruction method thereof that provide a kind of tunnel, separate type tunnel can be reconstructed integrally formula tunnel (hereinafter " integration reconstruction "), or monolithic tunnel is reconstructed into separate type tunnel.
In order to achieve the above object, a technical scheme of the present invention is to provide a kind of Y type syndeton, and described Y type syndeton is the Y type variable cross-section wall be arranged in structural transition section, is connected in monolithic tunnel with adjacent two separate type tunnels;
Wherein, the two pass wall that described Y type variable cross-section wall is arranged, connects with in two separate type tunnels, spaced apart two adjacent side walls are corresponding at a certain distance;
The single track wall that described Y type variable cross-section wall is arranged, correspondingly with the mid-board arranged between two Room adjacent in monolithic tunnel connects.
Preferably, in the two pass wall of described Y type variable cross-section wall, the wall thickness of any wall, identical with the wall thickness of the side wall in separate type tunnel;
The wall thickness of the single track wall of described Y type variable cross-section wall is identical with the wall thickness of the mid-board in monolithic tunnel;
Spacing in described separate type tunnel between two adjacent side walls, corresponding to the spacing in two pass wall between twice wall, for being doubled in the thickness of side wall.
Preferably, in the gap in the two pass wall of described Y type variable cross-section wall between twice wall, for tamping the plain concrete in this gap.
Preferably, described Y type variable cross-section wall comprises any one following structure or its any combination:
The inwall length of described two pass wall is 1m ~ 2m;
The peripheral wall length of described two pass wall is the twice of inwall length;
The angle θ at the body of wall variable cross-section place of described Y type variable cross-section wall is 135 degree.
Another technical scheme of the present invention is to provide a kind of reconstruction structure of tunnel, between monolithic tunnel and adjacent two separate type tunnels, is connected by structural transition section;
The Y type variable cross-section wall above described in any one is provided with in described structural transition section;
By the two pass wall that described Y type variable cross-section wall is arranged, connect with in two separate type tunnels, spaced apart two adjacent side walls are corresponding at a certain distance;
And by the single track wall that described Y type variable cross-section wall is arranged, correspondingly with the mid-board arranged between two Room adjacent in monolithic tunnel to connect.
Preferably, the deformation joint between structural transition section and separate type tunnel, makes the side wall in the top board of structural transition section, base plate, outside, and the side wall in top board genuine respective with two separate types respectively, base plate, outside is corresponding to be connected;
Deformation joint between structural transition section and monolithic tunnel, makes the side wall in the top board of structural transition section, base plate, outside, correspondingly with the side wall in the top board in monolithic tunnel, base plate, outside respectively connects.
Preferably, the reconstruction structure in described tunnel comprises any one following structure or its combination:
The both sides base plate of the deformation joint between structural transition section and separate type tunnel is provided with the perforate of grouting, under hole, side is formed with continuous strengthing body;
The both sides base plate of the deformation joint between structural transition section and monolithic tunnel is provided with the perforate of grouting, under hole, side is formed with continuous strengthing body.
Preferably, be connected by tongue-and-groove between the base plate of the genuine or described structural transition section of base plate and the separate type of described structural transition section;
Or, the below of the base plate of described structural transition section and separate type is genuine or monolithic is genuine back plate connections is provided with bored pile.
Another technical scheme of the present invention is to provide a kind of reconstruction method of tunnel, wherein comprises following process:
On the both sides base plate reconstructing deformation joint between section tunnel and road, original place, perforate slip casting is reinforced;
Again apply space enclosing structure in the outside in reconstruction section tunnel, cut the open section structure in road, original place to described deformation joint, and the rubber fastening band retained in described deformation joint and shear reinforcement are for pouring structure changeover portion;
Wherein, road, original place is adjacent two separate type tunnels, and reconstruction section tunnel is that structural transition section and monolithic are genuine; Or road, original place is that monolithic is genuine, and reconstruction section tunnel is structural transition section and adjacent two separate type tunnels;
By structural transition section, monolithic tunnel is connected with adjacent two separate type tunnels;
Adopt the Y type variable cross-section wall above described in any one in wherein said structural transition section, make the two pass wall that described Y type variable cross-section wall is arranged, connect with spaced apart two adjacent side walls are corresponding at a certain distance in two separate type tunnels; And make the single track wall that described Y type variable cross-section wall is arranged, correspondingly with the mid-board arranged between two Room adjacent in monolithic tunnel to connect;
Carry out the waterproof of structural transition section and the measure construction of control differential settlement.
Preferably, the gap plain concrete between two pass wall tamps after building by Y type variable cross-section wall.
The reconstruction structure in tunnel of the present invention and reconstruction method thereof, its meaning that actively improves is:
(1), during genuine construction, several open-cut foundation ditch are merged into a foundation ditch, decrease space enclosing structure engineering quantity and excavation of foundation pit area, the traffic organization being conducive to ground is dredged.
(2) the twice side wall in separate type tunnel is merged into the mid-board in monolithic tunnel, decrease concrete work amount.
(3), after integration reconstruction, genuine globality improves, stressed evenly, make total more economically, rationally, farthest reduce engineering quantity, reach economical and maximize.
(4) genuine for two separate types side walls can be connected with the genuine mid-board of a monolithic by the Y type connecting structure of the present invention's proposition.
(5) this method is equally applicable to the genuine integration reconstruction of multiple separate type, and a Y type connecting structure can be used for the mid-board of the adjacent side wall in the separate type tunnel of every two vicinities in multiple separate type tunnel with adjacent two Room in monolithic tunnel corresponding to be with it connected.
(6) if site condition is complicated, when monolithic tunnel need be reconstructed into separate type tunnel, also structure of the present invention and method can be adopted.
Accompanying drawing explanation
Fig. 1 is the separate type genuine integration reconstruction implementing procedure figure that the present invention proposes;
Fig. 2 is the structure transverse face figure in separate type tunnel in the present invention;
Fig. 3 is the structure transverse face figure in monolithic tunnel in the present invention;
Fig. 4 is the structural representation of Y type variable cross-section wall in the present invention;
Fig. 5 is the schematic diagram of the structural transition section arrangement of integration reconstruction in one embodiment of the invention.
Detailed description of the invention
Illustrate the present invention below in conjunction with a case history, participate in accompanying drawing 5, it is the embodiment schematic diagram that application the present invention carries out the genuine integration reconstruction of separate type.This tunnel was two separate type list box structures originally, now its open section structure will be cut, and by two separate types secretly the section of burying extended structure reconstruct into a monolithic construction.Between separate type is genuine genuine with monolithic, be formed with structural transition section be used for being connected two kinds of underpass.But a monolithic tunnel is reconstructed into except going in multiple separate type tunnel by the present invention; Can also be applicable to equally a monolithic tunnel be reconstructed into multiple separate type tunnel.
Two separate type list box structures as shown in Figure 2, are provided with the top board 1 in separate type tunnel, base plate 2, side wall 3 separately, the genuine inner kerbstone 4 arranged in side wall 3/3A and base plate 2 junction, and genuine inner bottom surface mat formation 5.Symbol 14 is the track clearance in separate type tunnel.Wherein the side wall of these two adjacent sides of separate type list box structure is adjacent side wall 3A to be reconstructed.In the present embodiment, the spacing between two adjacent side wall 3A to be reconstructed is about the thickness of one times of side wall.
Monolithic tunnel is as shown in Figure 3 single-box multi-cell (two Room) integral frame structure, comprise the top board 6 in the monolithic tunnel extending to two Room width, base plate 7, the mid-board 9 of genuine adjacent side, two Room, two Room are genuine mutually away from the side wall 8 of side, the genuine inner kerbstone 10 arranged with base plate 7 junction in side wall 8 or mid-board 9 in each room, and tunnel, each room inner bottom surface mat formation 11.Symbol 14 is the track clearance in tunnel, each room.
As shown in Figure 1, in the present embodiment, the integration in separate type tunnel is reconstructed, comprise the following steps:
(1) perforate slip casting 16 on the base plate of the both sides of the deformation joint 12 between structural transition section and separate type tunnel, the continuous strengthing body 17 of square one-tenth certain thickness, the degree of depth under hole, be intended to the differential settlement reducing tunnel, both sides, and double as water-stop curtain when reconstructing genuine foundation pit construction.
(2) again space enclosing structure is applied outward in the space enclosing structure in separate type tunnel, while excavation of foundation pit, cut the open section structure in separate type tunnel to deformation joint 12 place, retain buried rubber fastening band and shear reinforcement in deformation joint 12, utilized when pouring structure changeover portion.
(3) be connected genuine for two separate types with monolithic tunnel by structural transition section.At deformation joint 12 place, make top board 1, the base plate 2 in the top board of structural transition section, base plate 21, outside side wall 22 and separate type tunnel, outside side wall 3 is corresponding connects; Further, in structural transition section, a Y type variable cross-section wall 15(Fig. 4 is provided with), be connected with the adjacent side wall 3A in separate type tunnel by the two pass wall 18 of this Y type variable cross-section wall 15;
Deformation joint 20 place between structural transition section and monolithic tunnel, make the single track wall 19 of the top board of structural transition section, base plate 21, outside side wall 22, Y type variable cross-section wall 15, with top board 6, base plate 7, the outside side wall 8 in monolithic tunnel, mid-board 9 is corresponding connects.
In a preferred embodiment, the wall thickness of the two pass wall 18 of described Y type variable cross-section wall 15 should be identical with the wall thickness of the side wall 3A in separate type tunnel, and the wall thickness of single track wall 19 should be identical with the mid-board 9 in monolithic tunnel; The length of the corresponding Y type fork mouth of the inwall length A(of two pass wall 18) be preferably 1 ~ 2m, the length of the corresponding Y type fork mouth of peripheral wall length B(of two pass wall 18 adds the length of one section of body of wall below Y type fork mouth) be preferably the twice of A; The angle θ at body of wall variable cross-section place is preferably 135 degree.But in other example, the dimensional parameters at each position of Y type variable cross-section wall can be adjusted, to adapt to its and monolithic genuine actual conditions of being connected genuine with separate type.
(4), after Y type structure wall is built, the gap plain concrete between two pass wall 18 should be tamped; For ensureing genuine waterproof effect, except underpass adopts water-tight concrete, still can brush water-repellent paint at genuine inwall.
(5) deformation joint 12 arranged between structural transition section and two adjacent segments and deformation joint 20 place, carry out waterproof measure.The base plate that structural transition section is genuine with separate type and monolithic is genuine is connected by tongue-and-groove, or arranges bored pile below base plate, with the uneven subsidence solving underpass form, hole subsoil body difference is brought.
In other some examples, be necessary if actual, or when monolithic tunnel being transformed into separate type and being genuine, see describing above, such as can deformation joint 20 between structural transition section and monolithic tunnel both sides base plate on perforate slip casting, the continuous strengthing body of square one-tenth certain thickness, the degree of depth under hole.Or the open section structure cutting monolithic tunnel is to deformation joint 20, retains buried rubber fastening band and shear reinforcement in deformation joint 20, utilized when pouring structure changeover portion, etc.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (10)

1. a Y type syndeton, is characterized in that,
Described Y type syndeton is Y type variable cross-section wall (15) be arranged in structural transition section, is connected in monolithic tunnel with adjacent two separate type tunnels;
Wherein, the two pass wall (18) that described Y type variable cross-section wall (15) is arranged, connects with in two separate type tunnels, spaced apart two adjacent side walls (3A) are corresponding at a certain distance;
The single track wall (19) that described Y type variable cross-section wall is arranged, correspondingly with the mid-board (9) arranged between two Room adjacent in monolithic tunnel connects.
2. Y type syndeton as claimed in claim 1, is characterized in that,
In the two pass wall (18) of described Y type variable cross-section wall (15), the wall thickness of any wall, identical with the wall thickness of the side wall (3A) in separate type tunnel;
The wall thickness of the single track wall (19) of described Y type variable cross-section wall (15) is identical with the wall thickness of the mid-board (9) in monolithic tunnel;
Spacing in described separate type tunnel between two adjacent side walls (3A), corresponding to the spacing between twice wall in two pass wall (18), for being doubled in the thickness of side wall (3A).
3. Y type syndeton as claimed in claim 1, is characterized in that,
In gap in the two pass wall (18) of described Y type variable cross-section wall (15) between twice wall, for tamping the plain concrete in this gap.
4. Y type syndeton as claimed in claim 1, is characterized in that,
Described Y type variable cross-section wall (15) comprises any one following structure or its any combination:
The inwall length (A) of described two pass wall (18) is 1m ~ 2m;
The twice that the peripheral wall length (B) of described two pass wall (18) is inwall length (A);
The angle θ at the body of wall variable cross-section place of described Y type variable cross-section wall (15) is 135 degree.
5. a genuine reconstruction structure, is characterized in that,
Between monolithic tunnel and adjacent two separate type tunnels, connected by structural transition section;
Y type variable cross-section wall (15) in claim 1 ~ 4 described in any one is provided with in described structural transition section;
By the two pass wall (18) that described Y type variable cross-section wall (15) is arranged, connect with in two separate type tunnels, spaced apart two adjacent side walls (3A) are corresponding at a certain distance;
And by the single track wall (19) that described Y type variable cross-section wall is arranged, correspondingly with the mid-board (9) arranged between two Room adjacent in monolithic tunnel to connect.
6. reconstruction structure genuine as claimed in claim 5, is characterized in that,
Deformation joint (12) place between structural transition section and separate type tunnel, make the side wall (22) in the top board of structural transition section, base plate (21), outside, the side wall (3) in top board (1) genuine respective with two separate types respectively, base plate (2), outside is corresponding to be connected;
Deformation joint (20) place between structural transition section and monolithic tunnel, makes the side wall (22) in the top board of structural transition section, base plate (21), outside, correspondingly with the side wall (8) in the top board (6) in monolithic tunnel, base plate (7), outside respectively connects.
7. reconstruction structure genuine as claimed in claim 5, is characterized in that,
The reconstruction structure in described tunnel comprises any one following structure or its combination:
The both sides base plate of the deformation joint (12) between structural transition section and separate type tunnel is provided with the perforate of grouting, under hole, side is formed with continuous strengthing body (17);
The both sides base plate of the deformation joint (20) between structural transition section and monolithic tunnel is provided with the perforate of grouting, under hole, side is formed with continuous strengthing body.
8. reconstruction structure genuine as claimed in claim 6, is characterized in that,
Be connected by tongue-and-groove between the base plate of the base plate of described structural transition section or described structural transition section genuine with separate type;
Or, the below of the base plate of described structural transition section and separate type is genuine or monolithic is genuine back plate connections is provided with bored pile.
9. a genuine reconstruction method, is characterized in that, comprises following process:
On the both sides base plate reconstructing deformation joint between section tunnel and road, original place, perforate slip casting is reinforced;
Again apply space enclosing structure in the outside in reconstruction section tunnel, cut the open section structure in road, original place to described deformation joint, and the rubber fastening band retained in described deformation joint and shear reinforcement are for pouring structure changeover portion;
Wherein, road, original place is adjacent two separate type tunnels, and reconstruction section tunnel is that structural transition section and monolithic are genuine; Or road, original place is that monolithic is genuine, and reconstruction section tunnel is structural transition section and adjacent two separate type tunnels;
By structural transition section, monolithic tunnel is connected with adjacent two separate type tunnels;
Adopt as Y type variable cross-section wall (15) in claim 1 ~ 4 as described in any one in wherein said structural transition section, make the two pass wall (18) that described Y type variable cross-section wall (15) is arranged, connect with spaced apart two adjacent side walls (3A) are corresponding at a certain distance in two separate type tunnels; And make the single track wall (19) that described Y type variable cross-section wall is arranged, correspondingly with the mid-board (9) arranged between two Room adjacent in monolithic tunnel to connect;
Carry out the waterproof of structural transition section and the measure construction of control differential settlement.
10. reconstruction method genuine as claimed in claim 9, is characterized in that,
Gap plain concrete between two pass wall (18) tamps after building by Y type variable cross-section wall.
CN201510453291.4A 2015-07-29 2015-07-29 A kind of genuine reconstruction structure and its reconstruction method Active CN105019474B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07331998A (en) * 1994-06-13 1995-12-19 Ohbayashi Corp Constructing method of rock cavern
CN101168963A (en) * 2007-11-05 2008-04-30 上海市第二市政工程有限公司 Large depth underground continuous wall water-stop joint device
US20140090191A1 (en) * 2011-07-08 2014-04-03 Scott D. Aston Foundation system for bridges and other structures
CN104234079A (en) * 2014-07-24 2014-12-24 中铁十二局集团第二工程有限公司 Subway station Y-shaped cast steel combining steel pipe post processing and construction method
CN204919604U (en) * 2015-07-29 2015-12-30 上海市政工程设计研究总院(集团)有限公司 Genuine reconstruction structure and Y type connection structure thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07331998A (en) * 1994-06-13 1995-12-19 Ohbayashi Corp Constructing method of rock cavern
CN101168963A (en) * 2007-11-05 2008-04-30 上海市第二市政工程有限公司 Large depth underground continuous wall water-stop joint device
US20140090191A1 (en) * 2011-07-08 2014-04-03 Scott D. Aston Foundation system for bridges and other structures
CN104234079A (en) * 2014-07-24 2014-12-24 中铁十二局集团第二工程有限公司 Subway station Y-shaped cast steel combining steel pipe post processing and construction method
CN204919604U (en) * 2015-07-29 2015-12-30 上海市政工程设计研究总院(集团)有限公司 Genuine reconstruction structure and Y type connection structure thereof

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