CN110107312A - Shield duct piece and shield segment assembling structure - Google Patents
Shield duct piece and shield segment assembling structure Download PDFInfo
- Publication number
- CN110107312A CN110107312A CN201910445907.1A CN201910445907A CN110107312A CN 110107312 A CN110107312 A CN 110107312A CN 201910445907 A CN201910445907 A CN 201910445907A CN 110107312 A CN110107312 A CN 110107312A
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- section
- jurisdiction
- steel cap
- duct piece
- shield duct
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 238000003466 welding Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of shield duct pieces, including section of jurisdiction ontology, there are two longitudinal ends and two circumferential ends for the section of jurisdiction ontology tool, wherein a longitudinal end is equipped with blind mortise portion, another longitudinal end is equipped with the tenon portion being adapted to the blind mortise portion, the blind mortise portion and/or the tenon portion are equipped with steel cap, and the steel cap coats at least partly region of corresponding tenon portion.A kind of shield segment assembling structure is additionally related to, including two section of jurisdiction rings based on rebate structures to form, in two sections of jurisdiction corresponding to the bumps tenon structure, at least one of which section of jurisdiction uses above-mentioned shield duct piece.By the way that steel cap is arranged in tenon portion, it can be improved the shear resistance of the tenon portion, it to effectively improve shield duct piece/section of jurisdiction ring shear resistance, and can be reduced durings assembly etc. due to the breakage of concrete tenon portion caused by hitting, guarantee shield tunnel construction quality.
Description
Technical field
The present invention relates to a kind of shield duct piece and using the shield segment assembling structure of the shield duct piece.
Background technique
As what national basis was built greatly develops, the tunnel built in railway, highway and municipal works using shield method
More and more, tunnel cross-section is also increasing, and shield tunnel diameter 15m grades of tunnel segment structure is commonly used at present.
The increase of shield duct piece diameter, it is meant that the buoyancy that shield tunnel is subject to increases, the shearing force that section of jurisdiction circumferential direction is born
It increases accordingly；Simultaneously because in work progress pipe sheet assembling or operation phase external force caused by faulting of slab ends, also will increase section of jurisdiction ring
To shearing force.Concave-convex tenon structure is arranged between section of jurisdiction ring 1 can control 1 faulting of slab ends amount of shield tunnel ring, avoid between section of jurisdiction ring 1 because of mistake
Platform amount causes greatly tunnel structure destruction and waterproof failure.
Such as Fig. 1, existing rebate design is that concrete blind mortise 12 and tenon 11 is respectively set in section of jurisdiction circumferential weld two sides, is led to
The thrust and segment bolt fastening force for crossing shield machine jack closely squeeze tenon 11 with blind mortise 12 by intermediate backing plate 2
It forces together, shearing resistance requirement is met using the reinforcing bar in concrete rebate and section of jurisdiction.Current rebate design exist with
Lower Railway Project:
1) attitude of shield machine control is bad in work progress, and section of jurisdiction is touched during generating faulting of slab ends or pipe sheet assembling
It hits, all may cause the destruction of concrete rebate.
2) in the production process of section of jurisdiction, since segment die space is smaller, at rebate the binding of distributing bar and it is fixed compared with
It is difficult.
3) concrete rebate shear resistance is limited, is easy to cause section of jurisdiction local shear failure, causes percolating water instead.
Summary of the invention
The present embodiments relate to a kind of shield duct piece and using the shield segment assembling structure of the shield duct piece, at least may be used
Solve the segmental defect of the prior art.
The present embodiments relate to a kind of shield duct piece, including section of jurisdiction ontology, there are two longitudinal ends for the section of jurisdiction ontology tool
With two circumferential ends, wherein a longitudinal end is equipped with blind mortise portion, another longitudinal end is equipped with to be adapted to the blind mortise portion
Tenon portion, the blind mortise portion and/or the tenon portion are equipped with steel cap, and the steel cap coats at least partly region of corresponding tenon portion.
As one of embodiment, the steel cap is anchored on the section of jurisdiction ontology by dowel.
As one of embodiment, the blind mortise portion is connected with recessed steel cap, and the recessed steel cap passes through multiple first gantry type steel
Muscle anchoring, each first gantry type reinforcing bar are circumferentially sequentially arranged along the section of jurisdiction ontology arc.
As one of embodiment, the recessed steel cap is also by multiple V-type Bar Anchorages, and each V-type reinforcing bar is respectively and most
The first gantry type steel bar welding of two, outside is even and opening direction is respectively facing adjacent circumferential end.
As one of embodiment, the tenon portion is connected with convex steel cap, and the convex steel cap passes through multiple second gantry type steel
Muscle anchoring, each second gantry type reinforcing bar are circumferentially sequentially arranged along the section of jurisdiction ontology arc.
As one of embodiment, the tenon portion section is round or oval.
As one of embodiment, along longitudinal direction, the tenon portion is from its free end to its other end flaring.
As one of embodiment, the steel cap is equipped with elastic backing, and the elastic backing at least covers the use of the steel cap
In the face domain with another shield duct piece joggle.
The embodiment of the present invention further relates to a kind of shield segment assembling structure, including two pipes based on rebate structures to form
Loop, corresponding to the bumps tenon structure in two sections of jurisdiction, at least one of which section of jurisdiction uses shield duct piece as described above.
The embodiment of the present invention at least has the following beneficial effects:
Shield duct piece and shield segment assembling structure provided by the invention can be improved by the way that steel cap is arranged in tenon portion
The shear resistance of the tenon portion to effectively improve shield duct piece/section of jurisdiction ring shear resistance, and can be reduced and wait in assembly
Due to the breakage of concrete tenon portion caused by hitting in journey, guarantee shield tunnel construction quality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the existing shield segment assembling structure that background technique provides；
Fig. 2 is the structural schematic diagram for the shield duct piece that the embodiment of the present invention one provides；
The tenon side structure schematic diagram for the shield duct piece that Fig. 3 and Fig. 4 embodiment of the present invention one provides；
The blind mortise side structure schematic diagram for the shield duct piece that Fig. 5 and Fig. 6 embodiment of the present invention one provides；
Fig. 7 is the structural schematic diagram of shield segment assembling structure provided by Embodiment 2 of the present invention；
Fig. 8 is the structural model figure for traditional section of jurisdiction that the embodiment of the present invention one provides；
Fig. 9 is the maximum shear cloud atlas for traditional section of jurisdiction that the embodiment of the present invention one provides；
Figure 10 is the structural model figure of this shield duct piece that the embodiment of the present invention one provides；
Figure 11 is the maximum shear cloud atlas of this shield duct piece that the embodiment of the present invention one provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Such as Fig. 2-Fig. 7, the embodiment of the present invention provides a kind of shield duct piece, including section of jurisdiction ontology 100, the section of jurisdiction ontology
There are two longitudinal ends and two circumferential ends for 100 tools, are apparent from ground, so-called longitudinal end is the section of jurisdiction ontology 100 in tunnel longitudinal direction
On end namely the section of jurisdiction ontology 100 itself axial direction on end, it is so-called circumferential direction end be the section of jurisdiction ontology 100 from
The upward end of body arc week, longitudinal end are used to splice with adjacent section of jurisdiction ring, and circumferential end is used for and adjacent another section of jurisdiction sheet
Body 100 splices to constitute section of jurisdiction ring.Wherein a longitudinal end is equipped with blind mortise portion 102, and another longitudinal end is equipped with and institute
The tenon portion 101 for stating the adaptation of blind mortise portion 102, when with adjacent section of jurisdiction ring splicing, the tenon portion 101 of the section of jurisdiction ontology 100 with
The blind mortise portion 102 of correspondence section of jurisdiction in adjacent tubes loop is assembled, alternatively, the blind mortise portion 102 of the section of jurisdiction ontology 100 and adjacent section of jurisdiction
The tenon portion 101 of correspondence section of jurisdiction in ring is assembled, this is this field routine techniques, is not repeated herein.
Further, as Fig. 2-Fig. 7, the blind mortise portion 102 and/or the tenon portion 101 are equipped with steel cap 200, the steel
Cap 200 coats at least partly region of corresponding tenon portion.Generally, above-mentioned blind mortise portion 102 and tenon portion 101 are concrete structure；
Above-mentioned steel cap 200 can use stainless steel or other weather-proof, the preferable steel grades of antiseptic property, preferably high strength stainless steel, steel grade
Selection does not enumerate herein.
Shield duct piece provided in this embodiment can be improved the shearing resistance energy of the tenon portion by the way that steel cap 200 is arranged in tenon portion
Power to effectively improve shield duct piece/section of jurisdiction ring shear resistance, and can be reduced and draw durings assembly etc. due to hitting
The breakage of the concrete tenon portion risen guarantees shield tunnel construction quality.
Preferably, steel cap 200 coats the surface of corresponding tenon portion comprehensively, is further ensured that construction quality, and be convenient for coagulation
The molding of native tenon portion.
Above-mentioned 101 section of tenon portion can be round, ellipse or other shapes, such as rectangular or polymorphic structure；Obviously
The shape on ground, blind mortise portion 102 accordingly designs.Further, such as Fig. 2 and Fig. 4, along longitudinal direction, the tenon portion 101 is from its free end
To its other end flaring, joggle fiting effect can be improved, and then improve the shear resistance of rebate assembly.Then above-mentioned steel cap
200 be preferably shaped to is consistent with the shape of corresponding tenon portion.
Further, such as Fig. 3-Fig. 6, the steel cap 200 is anchored on the section of jurisdiction ontology 100 by dowel.It is apparent that
The dowel is arranged in the concrete structure of section of jurisdiction ontology 100.By the way that dowel is arranged, on the one hand by steel cap 200 and corresponding tenon
Portion/section of jurisdiction ontology 100 closely connects, and improves steel cap 200 and corresponding tenon portion/section of jurisdiction ontology 100 cooperative bearing performance, jointly
Shearing force load is born, tenon portion/shield duct piece/section of jurisdiction ring shear resistance is further improved；On the other hand, it can solve
The problem of binding and fixing reinforcing bar is not easy at rebate in the prior art, can improve significantly corresponding tenon portion structural strength and just
Degree, especially shear resistance.
The quantity of tenon portion 101 and blind mortise portion 102 on the section of jurisdiction ontology 100 is can be carried out according to Practical Project situation
Determining, such as difference, block form of section of jurisdiction ring of tunnel diameter etc..For whether being set in tenon portion 101 and blind mortise portion 102
Steel cap 200 is set, can also be determined according to Practical Project situation, such as requires to be adjusted according to circumferential weld shearing resistance, specifically,
At least design blind mortise portion 102 is configured with steel cap 200: when circumferential shear load is smaller, steel cap 200 only can be set in blind mortise portion 102,
When circumferential shear load is larger, steel cap 200 further can be set in tenon portion 101.
In addition, can be designed according to Practical Project situation for the model, quantity and distribution form etc. of above-mentioned dowel
Adjustment:
In wherein one preferred Application Example, such as Fig. 5 and Fig. 6, the blind mortise portion 102 is connected with recessed steel cap 202,
The recessed steel cap 202 is anchored by multiple first gantry type reinforcing bars 401, and each first gantry type reinforcing bar 401 is along the section of jurisdiction
100 arc of ontology is circumferentially sequentially arranged.Further, the first gantry type reinforcing bar 401 also with first wife's reinforcing bar of section of jurisdiction ontology 100
103 welderings connect, and further increase the cooperative bearing performance of steel cap 200 Yu section of jurisdiction ontology 100.Further, such as Fig. 5, the recessed steel
Cap 202 also by multiple V-type reinforcing bars 402 anchor, each V-type reinforcing bar 402 respectively with two first gantry type reinforcing bars of outermost
401 welderings are even and opening direction is respectively facing adjacent circumferential end.Pass through above-mentioned each first gantry type reinforcing bar 401 and each V-type reinforcing bar
402, the multi-direction stress of recessed steel cap 202 may be implemented, guarantee the anchoring stability and reliability of recessed steel cap 202.
In wherein one preferred Application Example, such as Fig. 3 and Fig. 4, the tenon portion 101 is connected with convex steel cap 201,
The convex steel cap 201 is anchored by multiple second gantry type reinforcing bars 403, and each second gantry type reinforcing bar 403 is along the section of jurisdiction
100 arc of ontology is circumferentially sequentially arranged.For above-mentioned tenon portion 101 from its free end to the structure of its other end flaring, second
The also corresponding design of the frame structure of gantry type reinforcing bar 403, preferably it walks to set along the outer edge surface of tenon portion 101.
In addition, further, the steel cap 200 is equipped with elastic backing 300, and the elastic backing 300 at least covers should
The face domain of steel cap 200 being used for another shield duct piece joggle.For above-mentioned recessed steel cap 202, elasticity lining is set in its bottom surface
Pad 300；For above-mentioned convex steel cap 201, elastic backing 300 is set in its top surface (face i.e. far from section of jurisdiction ontology 100).It is above-mentioned
Elastic backing 300 preferably uses waterproof sealing gasket, and rubber pad etc. can be used.
It, can be according to actual requirement of engineering and above-mentioned elastic backing 300 for thickness, the gradient of side wall etc. of steel cap 200
Technical indicator etc. be adjusted.
The manufacturing process of above-mentioned shield duct piece generally comprises:
1) it is required according to section of jurisdiction circumferential weld shearing resistance, selects the arrangement principle of steel cap 200.When circumferential shear load is smaller, only exist
Blind mortise portion 102 adds steel cap 200；When shearing force is larger, steel cap 200 is further added in tenon portion 101；
2) steel cap 200 is pre-machined, and welds dowel at the back side of steel cap 200；
3) steel cap 200 is fixed at the blind mortise (tenon) of pipe of concrete sheet mold, binds other steel of concrete pipe sheet
Muscle and casting concrete section of jurisdiction ontology 100.
To be further illustrated to shield duct piece provided in this embodiment, such as Fig. 8-Figure 11, using limited element analysis technique
Calculating comparative analysis is carried out to the shear resistance of this shield duct piece and traditional section of jurisdiction:
If Fig. 9 is the maximum shear cloud atlas of traditional section of jurisdiction, if Figure 11 is the maximum shear cloud atlas of this shield duct piece.As a result it shows
Show, under identical load situation, the maximum shear stress that traditional section of jurisdiction is born is 7406kpa, and the maximum that this shield duct piece is born is cut
Stress is 5616kpa.As it can be seen that compared to traditional section of jurisdiction, shield duct piece provided in this embodiment, due to being provided with steel in tenon portion
The shear resistance of cap 200, section of jurisdiction and section of jurisdiction circumferential weld is remarkably reinforced.
Embodiment two
Such as Fig. 7, the embodiment of the present invention further relates to a kind of shield segment assembling structure, including based on rebate structures to form
Two section of jurisdiction rings, corresponding to the bumps tenon structure in two sections of jurisdiction, at least one of which section of jurisdiction uses above-described embodiment one
Provided shield duct piece.
Generally, assembled by multiple groups bumps tenon structure between two section of jurisdiction rings, it is wrapped in preferably each concave-convex tenon structure
Include shield duct piece provided by above-described embodiment one.
When pipe sheet assembling is constructed, by the thrust and segment bolt fastening force of shield machine jack, by the convex of two section of jurisdiction rings
Tenon portion 101 presses together with blind mortise portion 102, and elastic backing 300, Ke Yichuan is folded between tenon portion 101 and blind mortise portion 102
Pressure between the two is passed, a kind of reinforced concave-convex tenon structure of shearing resistance is formed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of shield duct piece, including section of jurisdiction ontology, there are two longitudinal ends and two circumferential ends for the section of jurisdiction ontology tool, wherein one
The longitudinal end is equipped with blind mortise portion, and another longitudinal end is equipped with the tenon portion being adapted to the blind mortise portion, it is characterised in that: institute
It states blind mortise portion and/or the tenon portion is equipped with steel cap, the steel cap coats at least partly region of corresponding tenon portion.
2. shield duct piece as described in claim 1, it is characterised in that: the steel cap is anchored at the section of jurisdiction ontology by dowel
On.
3. shield duct piece as claimed in claim 2, it is characterised in that: the blind mortise portion is connected with recessed steel cap, the recessed steel cap
By multiple first gantry type Bar Anchorages, each first gantry type reinforcing bar is along the circumferential successively cloth of the section of jurisdiction ontology arc
It sets.
4. shield duct piece as claimed in claim 3, it is characterised in that: the recessed steel cap is also by multiple V-type Bar Anchorages, respectively
The V-type reinforcing bar connects respectively with two first gantry type steel bar weldings of outermost and opening direction is respectively facing adjacent circumferential end.
5. shield duct piece as claimed in claim 2, it is characterised in that: the tenon portion is connected with convex steel cap, the convex steel cap
By multiple second gantry type Bar Anchorages, each second gantry type reinforcing bar is along the circumferential successively cloth of the section of jurisdiction ontology arc
It sets.
6. shield duct piece as described in claim 1, it is characterised in that: the tenon portion section is round or oval.
7. shield duct piece as claimed in claim 6, it is characterised in that: along longitudinal direction, the tenon portion is another from its free end to it
One end flaring.
8. shield duct piece as described in claim 1, it is characterised in that: the steel cap is equipped with elastic backing, the elasticity lining
Pad at least covers the face domain of the steel cap being used for another shield duct piece joggle.
9. a kind of shield segment assembling structure, including two section of jurisdiction rings based on rebate structures to form, it is characterised in that: described
In two sections of jurisdiction corresponding to concave-convex tenon structure, at least one of which section of jurisdiction is used as described in any item of the claim 1 to 8
Shield duct piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445907.1A CN110107312B (en) | 2019-05-27 | 2019-05-27 | Shield segment and shield segment assembling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445907.1A CN110107312B (en) | 2019-05-27 | 2019-05-27 | Shield segment and shield segment assembling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107312A true CN110107312A (en) | 2019-08-09 |
| CN110107312B CN110107312B (en) | 2024-05-17 |
Family
ID=67492390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910445907.1A Active CN110107312B (en) | 2019-05-27 | 2019-05-27 | Shield segment and shield segment assembling structure |
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| CN (1) | CN110107312B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593911A (en) * | 2019-10-08 | 2019-12-20 | 中铁第一勘察设计院集团有限公司 | Self-anchored shield tunnel reinforcing system without support rod pieces and construction method thereof |
| CN111963199A (en) * | 2020-08-13 | 2020-11-20 | 浙大城市学院 | Segment structure of concave-convex shield tunnel and transverse staggered segment splicing method |
| CN112730083A (en) * | 2020-12-28 | 2021-04-30 | 西南石油大学 | Simulation system and experimental method for regulating duct piece dislocation by using tenon and mortise |
| CN113482660A (en) * | 2021-08-20 | 2021-10-08 | 盾构及掘进技术国家重点实验室 | Tunnel synthesis segment structure for vacuum magnetic levitation |
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| CN110593911A (en) * | 2019-10-08 | 2019-12-20 | 中铁第一勘察设计院集团有限公司 | Self-anchored shield tunnel reinforcing system without support rod pieces and construction method thereof |
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| CN112730083B (en) * | 2020-12-28 | 2024-05-28 | 西南石油大学 | Simulation system and experimental method for regulating and controlling segment staggering by using rebate |
| CN113482660A (en) * | 2021-08-20 | 2021-10-08 | 盾构及掘进技术国家重点实验室 | Tunnel synthesis segment structure for vacuum magnetic levitation |
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