CN204492834U - The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced - Google Patents
The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced Download PDFInfo
- Publication number
- CN204492834U CN204492834U CN201520057735.8U CN201520057735U CN204492834U CN 204492834 U CN204492834 U CN 204492834U CN 201520057735 U CN201520057735 U CN 201520057735U CN 204492834 U CN204492834 U CN 204492834U
- Authority
- CN
- China
- Prior art keywords
- jurisdiction
- section
- tunnel
- numerical expression
- reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000007569 slipcasting Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 230000036244 malformation Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 15
- 239000004567 concrete Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 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
- 238000009434 installation Methods 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
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses the prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced, comprise an arc section of jurisdiction, the inner surface of described arc section of jurisdiction is provided with many vertical ribs be parallel to each other, and connected by cross rib between adjacent vertical rib, described section of jurisdiction is provided with for the injected hole of the slip casting connecting hole connected with the section of jurisdiction that is connected; Described vertical rib is provided with prestressing apparatus installing hole.Precompression is there is in prestress die numerical expression section of jurisdiction of the present utility model, for active force structure: by hydraulic jack pushing tow and the method embedding steel plate makes section of jurisdiction produce prestressing force, realize section of jurisdiction and bear larger load in advance, sharing the internal force of a part of former section of jurisdiction, can malformation be reduced when there being external load effect.
Description
Technical field
The utility model relates to the novel pre-stressed modulus type tunnel segment structure and construction method reinforced in a kind of tunnel, belongs to construction engineering technical field.
Background technology
Along with the fast development of national economy, highway, railway, urban traffic also remain high speed development always.Tunnel structure accounts for total traffic mileage number also constantly soaring simultaneously.In normal operation process, all having there is the phenomenons such as damage in various degree, distortion in the lining cutting of tunnel structure and the section of jurisdiction of structure of the subway, drastically influence the safety of communications and transportation.
At present for the disease such as breakage, distortion that section of jurisdiction in tunnel inside lining, subway occurs, mainly adopt the treatment measures such as anchoring shotcrete with wire mesh concrete, secondary section of jurisdiction (reinforcing one deck section of jurisdiction again in former section of jurisdiction), steel plate reinforcement.But above treatment measures exist following weak point: 1, reduce track clearance largely, threaten vehicle operating safety; 2, above measure all belongs to passive force structure, only bears the internal force that self gravitation produces, can not share the internal force of former section of jurisdiction after namely having reinforced, and only has when former section of jurisdiction continues just can play its effect when there is larger distortion, shared external loads; 3, owing to being belong 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 normal operation of vehicle.5, need on former section of jurisdiction, play comparatively porous bar planting or anchor bolt, damage former section of jurisdiction supporting capacity.
Utility model content
The purpose of this utility model is to provide the New-type mould numerical expression prestressed pipe chip architecture of reinforcing in a kind of tunnel, and this tunnel segment structure mainly exists following advantage: avoid track clearance in reduction tunnel by a relatively large margin; There is precompression in structure, active undertaking external load, 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; Do not need bar planting or anchor bolt, avoid the infringement to former section of jurisdiction; Construction technology simple and fast, economizes on the use of funds.
The technical solution adopted in the utility model is as follows:
The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced, comprise an arc section of jurisdiction, the inner surface of described arc section of jurisdiction is or/and external surface is provided with many vertical ribs be parallel to each other, and connected by cross rib between adjacent vertical rib, described section of jurisdiction is provided with the connecting hole that the injected hole for slip casting is connected with for adjacent section of jurisdiction; Described vertical rib is provided with installing hole modulus type section of jurisdiction being implemented in advance to prestressed precompression bringing device.
Described vertical rib and cross rib are raised in the inner surface of section of jurisdiction or/and external surface.
Described section of jurisdiction is a curved plate I, at the inner surface of curved plate I or/and external surface is welded with the steel plate II consistent with vertical rib and cross rib profile, is filled with filler, and then forms vertical rib and cross rib in the cavity that curved plate I and steel plate II are formed.
The side being positioned at filler in described steel plate II is provided with stiffening rib.
Described modulus type section of jurisdiction, when implementing, connects into a semicircular configuration by multiple modulus type section of jurisdiction by bolt, and the section of jurisdiction end winding support being positioned at end is on railway roadbed.
The junction of described adjacent modulus type section of jurisdiction is embedded with wedge shape billet.
In described tunnel, the construction method of the prestress die numerical expression section of jurisdiction that semi-ring is reinforced is as follows:
The first step: process the position needed reinforcement, comprises cleaning breaking concrete, dead-end fracture, carries out injecting treatment to cavity after wall;
Second step: prestressed modulus type section of jurisdiction, temporary fixed by temporary support;
3rd step: indulge spaced set strain transducer and fixed observer point on rib in section of jurisdiction, monitors strain and displacement change respectively;
4th step: according to designing requirement, installs precompression bringing device at prestress die numerical expression section of jurisdiction one place or many places link position;
5th step: according to designing requirement, applies precompression to the classification of prestress die numerical expression section of jurisdiction, and Real-Time Monitoring stress, change in displacement situation;
6th step: embed wedge shape billet in junction, section of jurisdiction after reaching designing requirement, screw adjacent section of jurisdiction connecting bolt, and carry out slip casting by injected hole after the wall of arc section of jurisdiction;
7th step: remove prestress application device and temporary support, reinforcing completes.
Described precompression bringing device is shaft-like hydraulic jack, its two ends installing hole that prestress die numerical expression section of jurisdiction adjacent with two panels is indulged on rib is respectively connected, by hydraulic jack, the link position of adjacent two panels section of jurisdiction is backed down a gap, then be embedded in wedge shape billet in this gap, make in prestress die numerical expression section of jurisdiction exist at corresponding prestressing force.
The beneficial effects of the utility model are as follows:
1, construction technology is simple, flexible: this ruggedized construction is modulus type reinforcement elements, can according to the quantity of ruggedized construction unit needed for the concrete size Selection in tunnel, and ruggedized construction unit can be produced in industrialization in advance.
2, in tunnel gauge impact little, intensity is high: ruggedized construction by steel plate and in length and breadth rib form, thickness is little, and intensity is high, good stability.
3, there is precompression in prestress die numerical expression section of jurisdiction, for active force structure: by hydraulic jack pushing tow and the method embedding steel plate makes section of jurisdiction produce prestressing force, realize section of jurisdiction and bear larger load in advance, sharing the internal force of a part of former section of jurisdiction, can malformation be reduced when there being external load effect.
4, because ruggedized construction is active force structure, avoiding problems all the other reinforcement means due to former section of jurisdiction, to reinforce the power transmission effect that section of jurisdiction bonding strength causes not bad, reinforce and lost efficacy.
5, do not need punching to plant anchor bolt, avoid the infringement to former section of jurisdiction.
Accompanying drawing explanation
Fig. 1 is construction process figure;
Fig. 2 (a)-Fig. 2 (b) tentatively clears up the generalized section after maintenance for original structure;
Fig. 3 (a)-Fig. 3 (b) is for installing the generalized section after modulus type section of jurisdiction and temporary support;
Fig. 4 (a)-Fig. 4 (b) is for installing the generalized section after precompression bringing device and monitoring sensor;
Fig. 5 (a)-Fig. 5 (b) applies the generalized section after precompression according to designing requirement classification;
Fig. 6 (a)-Fig. 6 (b), for embedding steel plate, screws section of jurisdiction connecting bolt, the generalized section after grouting behind shaft or drift lining completes;
Fig. 7 (a)-Fig. 7 (b), for removing temporary support and precompression bringing device, applies the generalized section behind position with mortar shutoff precompression;
Fig. 8 is modulus type section of jurisdiction drawing;
Fig. 9 is the A-A sectional view in Fig. 8;
Figure 10 is the B-B sectional view 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 indulges rib; 3-3 bolt hole; 3-4 injected hole; 3-5 precompression bringing device installing hole; 3-6 is rib steel plate in length and breadth; 3-7 is stiffening rib in rib in length and breadth; 3-8 filler; 3-9 arc section of jurisdiction; 4-temporary support; 5-hydraulic jack; 6-wedge shape billet; 7-high-strength bolt; 8-shutoff mortar; 9-railway roadbed; 10-anchor bolt.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Fig. 3 (a)-Fig. 8, the prestress die numerical expression section of jurisdiction 3 that in a kind of tunnel, semi-ring is reinforced, comprise an arc section of jurisdiction 3-9, the inner surface of described arc section of jurisdiction 3-9 is or/and external surface is provided with many vertical rib 3-2 be parallel to each other, and connected by cross rib 3-1 between adjacent vertical rib 3-2, vertical rib 3-2 and cross rib 3-1 is raised in the inner surface of section of jurisdiction.Section of jurisdiction is provided with injected hole 3-4 and screwed hole 3-3; Described vertical rib is provided with prestressing apparatus installing hole 3-5.This tunnel segment structure avoids track clearance in reduction tunnel by a relatively large margin; There is precompression in structure, active undertaking external load, 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; Do not need bar planting or anchor bolt, avoid the infringement to former section of jurisdiction; Construction technology simple and fast, economizes on the use of funds.
Arc section of jurisdiction 3-9 is a curved plate I, at the inner surface of curved plate I or/and external surface is welded with the steel plate II consistent with vertical rib and cross rib profile, is filled with filler 3-8, and then forms vertical rib and cross rib in the cavity that curved plate I and steel plate II are formed.
The side being positioned at filler in steel plate II is provided with rib stiffening rib 3-7 in length and breadth.
Modulus type section of jurisdiction is when implementing, a semicircular configuration is connected into by high-strength bolt 7 by multiple modulus type section of jurisdiction 3, and the end, section of jurisdiction being positioned at end is fixed on railway roadbed 9 by anchor bolt 10, concrete structure is as shown in Fig. 3 (a)-Fig. 3 (b).
The junction of adjacent modulus type section of jurisdiction is embedded with wedge shape billet 6, and concrete structure as shown in figure 14, by embedding the method for billet 6, to make existence at corresponding prestressing force prestress die numerical expression the section of jurisdiction in.
In described tunnel, the construction method of the prestress die numerical expression section of jurisdiction that semi-ring is reinforced is as follows:
The first step: process the position needed reinforcement (former section of jurisdiction 1), comprises cleaning breaking concrete, dead-end fracture, carries out chief commander's process to cavity after wall; Final formation roughening layer 2 as shown in Figure 2.
Second step: prestressed modulus type section of jurisdiction, temporary fixed by temporary support 4;
3rd step: indulge spaced set strain transducer and fixed observer point on rib in section of jurisdiction, monitors strain and displacement change respectively;
4th step: according to designing requirement, installs precompression bringing device at prestress die numerical expression section of jurisdiction one place or many places link position;
Precompression bringing device is shaft-like hydraulic jack: its two ends installing hole 3-5 that section of jurisdiction adjacent with two panels is indulged on rib is respectively connected, by hydraulic jack, the link position of adjacent two panels section of jurisdiction is backed down the spacing of certain altitude, then be embedded in the method for billet 6 in this spacing, keep section of jurisdiction internal memory answering prestressing force one.
5th step: according to designing requirement, applies precompression to the classification of prestress die numerical expression section of jurisdiction, and Real-Time Monitoring stress, change in displacement situation;
6th step: embed wedge shape billet in junction, section of jurisdiction after reaching designing requirement, screw adjacent section of jurisdiction connecting bolt, and carry out slip casting by injected hole after the wall of arc section of jurisdiction, shutoff mortar 8 as shown in Figure 8.
7th step: remove prestress application device and temporary support, reinforcing completes.
After the utility model installation, precompression is there is in ruggedized construction, for active force structure: by hydraulic jack pushing tow and the method embedding steel plate makes section of jurisdiction produce prestressing force, realize section of jurisdiction and bear larger load in advance, sharing the internal force of a part of former section of jurisdiction, can malformation be reduced when there being external load effect.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (6)
1. the prestress die numerical expression section of jurisdiction that in a tunnel, semi-ring is reinforced, it is characterized in that: comprise an arc section of jurisdiction, the inner surface of described arc section of jurisdiction is or/and external surface is provided with many vertical ribs be parallel to each other, and connected by cross rib between adjacent vertical rib, described section of jurisdiction is provided with the connecting hole that the injected hole for slip casting is connected with for adjacent section of jurisdiction; Described vertical rib is provided with installing hole modulus type section of jurisdiction being implemented in advance to prestressed precompression bringing device.
2. the prestress die numerical expression section of jurisdiction that in tunnel as claimed in claim 1, semi-ring is reinforced, is characterized in that: described vertical rib and cross rib are raised in the inner surface of section of jurisdiction or/and external surface.
3. the prestress die numerical expression section of jurisdiction that in tunnel as claimed in claim 1, semi-ring is reinforced, it is characterized in that: described section of jurisdiction is a curved plate I, at the inner surface of curved plate I or/and external surface is welded with the steel plate II consistent with vertical rib and cross rib profile, be filled with filler in the cavity that curved plate I and steel plate II are formed, and then form vertical rib and cross rib.
4. the prestress die numerical expression section of jurisdiction that in tunnel as claimed in claim 1, semi-ring is reinforced, is characterized in that: the side being positioned at filler in described steel plate II is provided with stiffening rib.
5. the prestress die numerical expression section of jurisdiction that in tunnel as claimed in claim 1, semi-ring is reinforced, it is characterized in that: described modulus type section of jurisdiction is when implementing, connect into a semicircular configuration by multiple modulus type section of jurisdiction by bolt, and the section of jurisdiction end winding support being positioned at end is on railway roadbed.
6. the prestress die numerical expression section of jurisdiction that in tunnel as claimed in claim 1, semi-ring is reinforced, is characterized in that: the junction of adjacent modulus type section of jurisdiction is embedded with wedge shape billet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057735.8U CN204492834U (en) | 2015-01-27 | 2015-01-27 | The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057735.8U CN204492834U (en) | 2015-01-27 | 2015-01-27 | The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492834U true CN204492834U (en) | 2015-07-22 |
Family
ID=53572158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520057735.8U Withdrawn - After Issue CN204492834U (en) | 2015-01-27 | 2015-01-27 | The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492834U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612709A (en) * | 2015-01-27 | 2015-05-13 | 济南轨道交通集团有限公司 | Prestressed modulus type duct piece for semi-ring reinforcing in tunnel and construction method |
| CN105178983A (en) * | 2015-08-24 | 2015-12-23 | 济南轨道交通集团有限公司 | Circumferential prestress strengthening tunnel segment and manufacturing method |
| CN108222965A (en) * | 2018-01-30 | 2018-06-29 | 中交公路长大桥建设国家工程研究中心有限公司 | Assembled ultra-high performance concrete duct pieces of shield tunnel and preparation method thereof |
| CN108729346A (en) * | 2018-07-02 | 2018-11-02 | 长沙理工大学 | Circumferential prestressed pipeline structure and manufacturing method |
-
2015
- 2015-01-27 CN CN201520057735.8U patent/CN204492834U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612709A (en) * | 2015-01-27 | 2015-05-13 | 济南轨道交通集团有限公司 | Prestressed modulus type duct piece for semi-ring reinforcing in tunnel and construction method |
| CN105178983A (en) * | 2015-08-24 | 2015-12-23 | 济南轨道交通集团有限公司 | Circumferential prestress strengthening tunnel segment and manufacturing method |
| CN108222965A (en) * | 2018-01-30 | 2018-06-29 | 中交公路长大桥建设国家工程研究中心有限公司 | Assembled ultra-high performance concrete duct pieces of shield tunnel and preparation method thereof |
| CN108222965B (en) * | 2018-01-30 | 2024-04-05 | 中交公路长大桥建设国家工程研究中心有限公司 | Assembled ultra-high performance concrete shield tunnel segment and preparation method thereof |
| CN108729346A (en) * | 2018-07-02 | 2018-11-02 | 长沙理工大学 | Circumferential prestressed pipeline structure and manufacturing method |
| CN108729346B (en) * | 2018-07-02 | 2023-05-26 | 长沙理工大学 | A ring prestressed pipeline structure and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104612706B (en) | In a kind of tunnel the domain reinforce prestress die numerical expression section of jurisdiction and construction method | |
| US9222225B2 (en) | Pre-stressed concrete track slab of slab-type ballast-less track | |
| CN204492834U (en) | The prestress die numerical expression section of jurisdiction that in a kind of tunnel, semi-ring is reinforced | |
| CN203080430U (en) | Assembly and cast-in-place combined type reinforced concrete pipe type culvert | |
| CN103452018B (en) | Track gauge correction method for double-block type ballastless track construction | |
| CN104652242B (en) | Derrick connecting structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN103276662A (en) | Large-cantilever steel web spinal box beam segment and construction technology | |
| WO2017185905A1 (en) | Ribbed column distributed turnout foundation structure for low-set mid-to-low speed magnetic levitation line | |
| CN104652293A (en) | Cable-stayed bridge structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN107100092A (en) | The quick bridge widening structure and installation method of a kind of uninterrupted traffic | |
| CN102561212A (en) | Method for strengthening vertical crack of single-pillar concrete pier | |
| CN201650302U (en) | Eiking clear hole structure of existing high speed railway tunnel | |
| CN208151831U (en) | A kind of single hole precast hollow slab jointless bridge | |
| CN202000234U (en) | Tray type U-shaped reinforced subgrade structure | |
| CN104612709A (en) | Prestressed modulus type duct piece for semi-ring reinforcing in tunnel and construction method | |
| CN204436408U (en) | The prestress die numerical expression section of jurisdiction that in a kind of tunnel, the domain is reinforced | |
| CN201915299U (en) | Pretensioned prestressed concrete track slab of slab ballastless track | |
| CN108547209B (en) | A single-hole prefabricated hollow slab bridge without expansion joints and its construction method | |
| CN102102345B (en) | Prestress concrete noise barrier sound absorption inserting plate for high speed railway | |
| CN201526006U (en) | Prestressed concrete continuous box girder | |
| CN118793111A (en) | A pile foundation ring three-lining replacement structure in a tunnel | |
| CN103790079B (en) | A kind of roadbed prestressed reinforcement intensifying method | |
| CN204174481U (en) | Soft clay area modern tram abutment rebound structure | |
| CN101886370B (en) | Steel massive pillar beam for bridge pier | |
| CN110761127B (en) | Rock foundation existing high-speed railway embankment force balance side width structure and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20170517 |