CN104612706B - In a kind of tunnel the domain reinforce prestress die numerical expression section of jurisdiction and construction method - Google Patents
In a kind of tunnel the domain reinforce prestress die numerical expression section of jurisdiction and construction method Download PDFInfo
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- CN104612706B CN104612706B CN201510042115.1A CN201510042115A CN104612706B CN 104612706 B CN104612706 B CN 104612706B CN 201510042115 A CN201510042115 A CN 201510042115A CN 104612706 B CN104612706 B CN 104612706B
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 7
- 239000007943 implant Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000007569 slipcasting Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000036244 malformation Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011378 shotcrete Substances 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
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
Prestress die numerical expression section of jurisdiction that in a kind of tunnel of disclosure of the invention, the domain is reinforced and construction method, including an arc section of jurisdiction, the inner surface of arc section of jurisdiction is provided with a plurality of longitudinal rib being parallel to each other, and connected by cross rib between adjacent longitudinal rib, the end face of described section of jurisdiction and bottom surface are provided with precompression bringing device mounting groove, install bolt hole and injected hole on described section of jurisdiction.This tunnel segment structure is primarily present advantages below: avoid track clearance in reduction tunnel by a relatively large margin；There is precompression, active undertaking external load in structure, changes the stress of former section of jurisdiction, Reducing distortion amount；Avoid former section of jurisdiction, reinforce the not enough impact on structural strengthening effect of section of jurisdiction bonding strength；Need not bar planting or anchor bolt, it is to avoid infringement to former section of jurisdiction；Construction technology simple and fast, saves fund.
Description
Technical field
The novel pre-stressed modulus type tunnel segment structure reinforced in the present invention relates to a kind of tunnel and construction method, belong to construction engineering technical field.
Background technology
Along with the fast development of national economy, highway, railway, urban transportation are also always maintained at high speed development.Tunnel structure accounts for total traffic mileage number also the most soaring simultaneously.During normal operation, the lining cutting of tunnel structure and the section of jurisdiction of structure of the subway all occur in that the phenomenons such as damage in various degree, deformation, drastically influence the safety of transportation.
Currently for diseases such as the breakage of section of jurisdiction appearance, deformation in tunnel inside lining, subway, mainly use the treatment measures such as anchoring shotcrete with wire mesh concrete, secondary section of jurisdiction (reinforcing one layer of section of jurisdiction in former section of jurisdiction again), steel plate reinforcement.But above treatment measures exist following weak point: 1, reduce track clearance largely, threaten vehicle and run safety；2, above measure belongs to passive force structure, only undertakes the internal force that self gravitation produces after i.e. having reinforced, it is impossible to shares the internal force of former section of jurisdiction, only just can play its effect, shared external loads when bigger deformation is continued to occur in former section of jurisdiction when；3, owing to being belonging to passive force structure, the bonding strength therefore reinforcing section of jurisdiction and former section of jurisdiction just becomes the weak link of consolidation effect；4, complicated construction technique, affects the properly functioning of vehicle.5, need on former section of jurisdiction, play relatively porous bar planting or anchor bolt, damage former section of jurisdiction bearing capacity.
Summary of the invention
The New-type mould numerical expression prestressed pipe chip architecture reinforced in it is an object of the invention to provide a kind of tunnel, this tunnel segment structure avoids track clearance in reduction tunnel by a relatively large margin；There is precompression, active undertaking external load in structure, changes the stress of former section of jurisdiction, Reducing distortion amount；Avoid former section of jurisdiction, reinforce the not enough impact on structural strengthening effect of section of jurisdiction bonding strength；Need not bar planting or anchor bolt, it is to avoid infringement to former section of jurisdiction；Construction technology simple and fast, saves fund.
The technical solution used in the present invention is as follows:
The prestress die numerical expression section of jurisdiction that in a kind of tunnel, the domain is reinforced, including an arc section of jurisdiction, the inner surface of described arc section of jurisdiction is or/and outer surface is provided with a plurality of longitudinal rib being parallel to each other, and connected by cross rib between adjacent longitudinal rib, the end face of described arc section of jurisdiction and bottom surface are provided with the mounting groove that modulus type section of jurisdiction is implemented prestressed precompression bringing device in advance, are provided with the injected hole for slip casting and the connecting hole for the connection of adjacent arc section of jurisdiction on described arc section of jurisdiction.
Described prestress die numerical expression section of jurisdiction can be the most prefabricated.
Described longitudinal rib and cross rib are raised in the inner surface of arc section of jurisdiction or/and outer surface.
Described arc section of jurisdiction is a curved plate I, at the inner surface of curved plate I or/and be welded with the steel plate II consistent with longitudinal rib and cross rib profile on outer surface, is filled with implant, and then forms longitudinal rib and cross rib in the cavity that curved plate I and steel plate II are formed.
The side being positioned at implant in described steel plate II is provided with ribbed stiffener.
Described modulus type section of jurisdiction, when implementing, is connected into a loop configuration by multiple modulus type sections of jurisdiction by bolt.
The junction of described adjacent modulus type section of jurisdiction is embedded with wedge shape billet.
The construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in described tunnel is as follows:
The first step: the position needed reinforcement is processed, including cleaning breaking concrete, dead-end fracture, to after wall cavity process；
Second step: prestressed modulus type section of jurisdiction, is fixed by temporary support temporarily；
3rd step: spaced set strain transducer and fixed observer point in the longitudinal rib of prestress die numerical expression section of jurisdiction, respectively monitoring strain and change in displacement；
4th step: according to design requirement, at prestress die numerical expression section of jurisdiction one or many places link position install precompression bringing device；
5th step: according to design requirement, applies precompression, and monitor stress, change in displacement situation in real time to the classification of prestress die numerical expression section of jurisdiction；
6th step: reach to embed in junction, prestress die numerical expression section of jurisdiction after design requires wedge shape billet, screw adjacent prestress die numerical expression section of jurisdiction connecting bolt, and carry out slip casting by injected hole after the wall of arc section of jurisdiction；
7th step: removing prestress application device and temporary support, reinforcing completes.
Described precompression bringing device is ultra-thin hydraulic jack；It is arranged in the mounting groove of two panels prestress die numerical expression section of jurisdiction link position, by hydraulic jack, the link position of adjacent two panels prestress die numerical expression section of jurisdiction is backed down a gap, then the method being embedded in billet in this gap so that exist at corresponding prestressing force in prestress die numerical expression section of jurisdiction.
The present invention has the following advantages and good effect:
1, construction technology is simple, flexibly: prestress die numerical expression section of jurisdiction is modulus type reinforcement elements, can be according to the quantity of ruggedized construction unit needed for the concrete size Selection in tunnel, and ruggedized construction unit can produce in industrialization in advance.
2, little on gauge impact in tunnel, intensity is high: ruggedized construction by steel plate and in length and breadth rib form, thickness is little, intensity height, good stability.
3, there is precompression in prestress die numerical expression section of jurisdiction, for active force structure: by hydraulic jack pushing tow and embed the method for steel plate and make section of jurisdiction produce prestressing force, realize section of jurisdiction and bear bigger load in advance, share the internal force of a part of former section of jurisdiction, malformation can be reduced when there being external load effect.
4, because the ruggedized construction of the present invention is active force structure, due to former section of jurisdiction and to reinforce the power transmission effect that section of jurisdiction bonding strength causes not bad to avoiding problems remaining reinforcement means, reinforces and lost efficacy.
5, need not punching and plant anchor bolt, it is to avoid infringement to primary structure.
Accompanying drawing explanation
Fig. 1 is construction process figure；
Fig. 2 (a)-Fig. 2 (b) is the generalized section after maintenance tentatively cleared up by original structure；
Fig. 3 (a)-Fig. 3 (b) is the generalized section after installation modulus type section of jurisdiction and temporary support；
Fig. 4 (a)-Fig. 4 (b) is the generalized section after installing precompression bringing device and monitoring sensor；
Generalized section after design requires classification to apply precompression according to Fig. 5 (a)-Fig. 5 (b)；
Fig. 6 (a)-Fig. 6 (b) for embed steel plate, screw section of jurisdiction connecting bolt, grouting behind shaft or drift lining complete after generalized section；
Fig. 7 (a)-Fig. 7 (b), for removing temporary support and precompression bringing device, applies the generalized section behind position with mortar closure precompression；
Fig. 8 is modulus type section of jurisdiction drawing；
Fig. 9 is the Section A-A figure in Fig. 8；
Figure 10 is the section B-B figure in Fig. 8；
Figure 11 is the C-C sectional view in Fig. 8；
Figure 12 is the D-D sectional view in Fig. 8；
Figure 13 is compressive pre-stress bringing device；
Figure 14 is for embedding steel plate.
In figure: the former section of jurisdiction of 1-；2-roughening layer；3-modulus type section of jurisdiction；3-1: cross rib；3-2 longitudinal rib；3-3 bolt hole；3-4 injected hole；3-5 precompression bringing device mounting groove；3-6 rib steel plate in length and breadth；Ribbed stiffener in 3-7 rib in length and breadth；3-8 implant； 3-9
Arc section of jurisdiction, 4-falsework；5-hydraulic jack；6-wedge shape billet；7-high-strength bolt；8-blocks mortar.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
As shown in Fig. 3 (a)-Figure 13, the prestress die numerical expression section of jurisdiction that in a kind of tunnel, the domain is reinforced, including an arc section of jurisdiction 3-9, the inner surface of arc section of jurisdiction is or/and outer surface is provided with a plurality of longitudinal rib 3-2 being parallel to each other, and connected by cross rib 3-1 between adjacent longitudinal rib, longitudinal rib 3-2 and cross rib 3-1 are raised in the inner surface of section of jurisdiction or/and outer surface.The end face of section of jurisdiction and bottom surface are provided with precompression bringing device mounting groove 3-5, install bolt hole 3-3 and injected hole 3-4 on section of jurisdiction；This tunnel segment structure avoids track clearance in reduction tunnel by a relatively large margin；There is precompression, active undertaking external load in structure, changes the stress of former section of jurisdiction, Reducing distortion amount；Avoid former section of jurisdiction, reinforce the not enough impact on structural strengthening effect of section of jurisdiction bonding strength；Need not bar planting or anchor bolt, it is to avoid infringement to former section of jurisdiction；Construction technology simple and fast, saves fund.
Arc section of jurisdiction 3-9 is a curved plate I, at the inner surface of curved plate I or/and be welded with the steel plate II consistent with longitudinal rib and cross rib profile on outer surface, it is filled with implant 3-8 in the cavity that curved plate I and steel plate II are formed, and then forms longitudinal rib 3-2 and cross rib 3-1.
The side being positioned at implant in steel plate II is provided with rib ribbed stiffener 3-7 in length and breadth.
Modulus type section of jurisdiction, when implementing, is connected into a loop configuration by multiple modulus type sections of jurisdiction 3 by bolt, shown in concrete structure such as Fig. 3 (a)-Fig. 3 (b).
The junction of adjacent modulus type section of jurisdiction is embedded with wedge shape billet 6, concrete structure as shown in figure 14, by embed billet 6 method so that prestress die numerical expression the section of jurisdiction in existence at corresponding prestressing force.
The construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel is as follows:
The first step: process the position (former section of jurisdiction 1) needed reinforcement, including cleaning breaking concrete, dead-end fracture, carries out chief commander's process to cavity after wall；Ultimately form roughening layer 2 as shown in Figure 2.
Second step: prestressed modulus type section of jurisdiction, is fixed by temporary support 4 temporarily；
3rd step: spaced set strain transducer and fixed observer point in the longitudinal rib of section of jurisdiction, respectively monitoring strain and change in displacement；
4th step: according to design requirement, at prestress die numerical expression section of jurisdiction one or many places install precompression bringing device；
Precompression bringing device is ultrathin hydraulic jack: it is arranged on 3-5 in the mounting groove of two panels section of jurisdiction link position, by hydraulic jack, the link position of adjacent two panels section of jurisdiction is backed down the spacing of certain altitude, then the method being embedded in billet 6 in this spacing, exists in keeping section of jurisdiction and answers prestressing force one.
5th step: according to design requirement, applies precompression, and monitor stress, change in displacement situation in real time to the classification of prestress die numerical expression section of jurisdiction；
6th step: reach to embed in junction, section of jurisdiction after design requires wedge shape billet, screw adjacent section of jurisdiction connecting bolt, and carry out slip casting, closure mortar 8 as shown in Figure 8 by injected hole after the wall of arc section of jurisdiction.
7th step: removing prestress application device and temporary support, reinforcing completes.
After installation of the present invention, precompression is there is in ruggedized construction, for active force structure: by hydraulic jack pushing tow and embed the method for steel plate and make section of jurisdiction produce prestressing force, realize section of jurisdiction and bear bigger load in advance, share the internal force of a part of former section of jurisdiction, malformation can be reduced when there being external load effect.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (8)
1. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in a tunnel, including an arc section of jurisdiction, the inner surface of described arc section of jurisdiction is or/and outer surface is provided with a plurality of longitudinal rib being parallel to each other, and connected by cross rib between adjacent longitudinal rib, the end face of described arc section of jurisdiction and bottom surface are provided with the mounting groove that modulus type section of jurisdiction is implemented prestressed precompression bringing device in advance, are provided with the injected hole for slip casting and the connecting hole for the connection of adjacent described arc section of jurisdiction on described arc section of jurisdiction；
It is characterized in that, step is as follows:
The first step: the position needed reinforcement is processed, including cleaning breaking concrete, dead-end fracture, to after wall cavity process；
Second step: prestressed modulus type section of jurisdiction, is fixed by temporary support temporarily；
3rd step: spaced set strain transducer and fixed observer point in the longitudinal rib of prestress die numerical expression section of jurisdiction, respectively monitoring strain and change in displacement；
4th step: according to design requirement, at prestress die numerical expression section of jurisdiction one or many places install precompression bringing device；
5th step: according to design requirement, applies precompression, and monitor stress, change in displacement situation in real time to the classification of prestress die numerical expression section of jurisdiction；
6th step: reach to embed in junction, prestress die numerical expression section of jurisdiction after design requires wedge shape billet, screw the connecting bolt of adjacent prestress die numerical expression section of jurisdiction, and carry out slip casting by injected hole after the wall of arc section of jurisdiction；
7th step: removing prestress application device and temporary support, reinforcing completes.
2. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 1, it is characterised in that: described longitudinal rib and cross rib are raised in the inner surface of arc section of jurisdiction or/and outer surface.
3. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 1, it is characterized in that: described arc section of jurisdiction is a curved plate I, at the inner surface of curved plate I or/and be welded with the steel plate II consistent with longitudinal rib and cross rib profile on outer surface, it is filled with implant in the cavity that curved plate I and steel plate II are formed, and then forms longitudinal rib and cross rib.
4. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 3, it is characterised in that: the side being positioned at implant in described steel plate II is provided with ribbed stiffener.
5. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 1, it is characterised in that: described modulus type section of jurisdiction, when implementing, is connected into a loop configuration by multiple modulus type sections of jurisdiction by bolt.
6. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 5, it is characterised in that: the junction of described adjacent modulus type section of jurisdiction is embedded with wedge shape billet.
7. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 1, it is characterised in that: described prestress die numerical expression section of jurisdiction can be the most prefabricated.
8. the construction method of the prestress die numerical expression section of jurisdiction that the domain is reinforced in tunnel as claimed in claim 1, it is characterized in that: described precompression bringing device is ultrathin hydraulic jack, it is arranged in the mounting groove of two panels prestress die numerical expression section of jurisdiction link position, by hydraulic jack, the link position of adjacent two panels prestress die numerical expression section of jurisdiction is backed down a gap, then the method being embedded in billet in this gap so that exist at corresponding prestressing force in prestress die numerical expression section of jurisdiction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042115.1A CN104612706B (en) | 2015-01-27 | 2015-01-27 | In a kind of tunnel the domain reinforce prestress die numerical expression section of jurisdiction and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510042115.1A CN104612706B (en) | 2015-01-27 | 2015-01-27 | In a kind of tunnel the domain reinforce prestress die numerical expression section of jurisdiction and construction method |
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| Publication Number | Publication Date |
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| CN104612706A CN104612706A (en) | 2015-05-13 |
| CN104612706B true CN104612706B (en) | 2016-09-21 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105909275B (en) * | 2016-06-27 | 2018-06-15 | 中国电建集团成都勘测设计研究院有限公司 | Only starch antiseepage section of jurisdiction and tunnel pipe sheet built structure |
| CN106401610A (en) * | 2016-11-16 | 2017-02-15 | 河北科技大学 | Tunnel supporting structure |
| CN107882577A (en) * | 2017-11-21 | 2018-04-06 | 中国电建集团铁路建设有限公司 | A kind of shield tunnel export ＆ import section of jurisdiction applies prestressed construction method |
| CN108222978A (en) * | 2018-03-08 | 2018-06-29 | 中铁建大桥工程局集团第四工程有限公司 | A kind of metro shield driving freezes synchronization job belt stress stent system and installation method with service channel |
| CN108729346B (en) * | 2018-07-02 | 2023-05-26 | 长沙理工大学 | Circumferential prestress pipeline structure and manufacturing method thereof |
| CN111156026B (en) * | 2020-03-05 | 2021-04-27 | 西南交通大学 | Mounting and using method of active support prefabricated secondary lining for shield tunnel |
| CN111485908B (en) * | 2020-04-16 | 2022-03-29 | 浙江大学城市学院 | Grid-shaped shield tunnel segment structure and construction method |
| CN111485909B (en) * | 2020-04-16 | 2022-03-29 | 浙江大学城市学院 | Convex shield tunnel segment structure and construction method |
| CN115163120B (en) * | 2022-07-12 | 2024-03-05 | 华南理工大学 | Model test device and test method for shield tunnel lining |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5246636A (en) * | 1975-10-09 | 1977-04-13 | Kubota Ltd | Pipe supporting holding material of assembly system pipe supporting holding work |
| JP4035075B2 (en) * | 2003-03-24 | 2008-01-16 | 大成建設株式会社 | Reinforcing structure and method for existing wall-like structure |
| JP4418269B2 (en) * | 2004-03-18 | 2010-02-17 | 新日本製鐵株式会社 | Primary lining body of concrete-filled steel segment and tunnel |
| CN200940486Y (en) * | 2006-08-07 | 2007-08-29 | 上海市隧道工程轨道交通设计研究院 | Large deformation lining ring structure for shield tunnel |
| KR100942267B1 (en) * | 2009-09-24 | 2010-03-02 | (주)홍지디씨에스 | Prestressed concrete panel for duct slab in tunnel, manufacturing method therefor and construction method of the duct slab |
| CN202788868U (en) * | 2012-07-09 | 2013-03-13 | 中铁第四勘察设计院集团有限公司 | Duct piece staggered joint and assembly lining structure for fixing inverted arch positions |
| CN202954822U (en) * | 2012-07-09 | 2013-05-29 | 江苏牧羊集团有限公司 | Multipurpose steel tube slice pre-assembly mould |
| CN102733825B (en) * | 2012-07-09 | 2014-08-27 | 中铁第四勘察设计院集团有限公司 | Method for concrete pipe segment lining structure capable of adapting to surrounding rock deformation |
| CN203271768U (en) * | 2013-05-23 | 2013-11-06 | 西南交通大学 | Secondary shield tunnel lining and pouring device |
| CN204436408U (en) * | 2015-01-27 | 2015-07-01 | 济南轨道交通集团有限公司 | The prestress die numerical expression section of jurisdiction that in a kind of tunnel, the domain is reinforced |
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