CN214062961U - Compound complicated section shaped steel shield constructs restoration structure - Google Patents
Compound complicated section shaped steel shield constructs restoration structure Download PDFInfo
- Publication number
- CN214062961U CN214062961U CN202022554575.1U CN202022554575U CN214062961U CN 214062961 U CN214062961 U CN 214062961U CN 202022554575 U CN202022554575 U CN 202022554575U CN 214062961 U CN214062961 U CN 214062961U
- Authority
- CN
- China
- Prior art keywords
- thick
- steel
- shield
- tunnel
- thickness
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a compound complicated section shaped steel shield constructs restoration structure, a serial communication port restore the structure for hugging closely shield tunnel internal face and encircle one of the thick reinforced concrete lining cutting, thick shaped steel, steel box body, the steel plate that sets up, wherein, the thickness of thick reinforced concrete lining cutting is 200 and gives other materials 300mm, the thickness of thick shaped steel is 100 and gives other materials 200mm, the thickness of steel box body is 100 and gives other materials 200mm, the thickness of thick steel plate is 20-30 mm. The utility model has the advantages that: the repair structure is simple, different construction processes can be adopted to reinforce and repair the tunnel structure according to different reserved clearance sizes of the tunnel, the settlement and convergence deformation of the shield tunnel are effectively controlled, and the safe operation of the subway is guaranteed.
Description
Technical Field
The utility model relates to a shield tunnel technical field, concretely relates to compound complicated section shaped steel shield constructs restoration structure.
Background
With the rapid development of urban construction and the gradual expansion of subway scale, the tunnel structure between subway engineering sections has the disadvantages of deformation, cracking and the like of the tunnel structure in local areas due to the reasons of stratum conditions, service life, local overload, improper excavation of foundation pits in engineering around lines and the like, has adverse effects on the structural safety of the tunnel, brings huge hidden dangers to the normal operation of the subway, and needs to be structurally reinforced for eliminating the hidden dangers. Aiming at different reserved clearance sizes of all tunnels, different construction processes are adopted for reinforcing and repairing the tunnel structure, so that the method has great practical significance for subway tunnel reinforcing work in the future, and also plays an important role in guaranteeing safe operation and development of the subway in the future.
The composite type complex section steel repair is a construction method for carrying out structural reinforcement and repair on a damaged subway interval tunnel, and a process of different construction methods can be adopted according to the reserved existing clearance size of different tunnel sections. In recent years, in the reinforcement and repair of the rail transit interval structure in cities across the country, a single reinforcement form of an internal expanding steel ring and epoxy filling of a tunnel is generally adopted due to the limitation of small clearance size after the deformation of the tunnel structure, but when the operable space in the tunnel is large enough, other diversified reinforcement methods can be adopted. Such as:
the inner diameter of a new wheel pipe piece in Shanghai is phi 5900mm, the maximum clearance margin of the rear limit of the A-type vehicle is 350mm on one side, and after a certain construction error is considered, a reinforced concrete lining with the thickness of 200 and 300mm can be constructed on the inner side of the tunnel to increase the strength and rigidity of the original structure;
if the clearance size is only 100-200mm, the structural steel or the steel box body structure can be covered and attached to the inner surface of the tunnel so as to improve the strength and rigidity of the structure;
if the clearance size of the structure is less than 100mm, a steel plate with the thickness of 20mm or 30mm can be adhered to the inner side of the tunnel to improve the bearing capacity of the original structure.
The reinforcement of the construction method can greatly improve the strength and rigidity of the original tunnel structure, prolong the service life of the structure and ensure the structural safety and durability of the tunnel in the damaged subway section.
Disclosure of Invention
The utility model aims at providing a compound complicated section shaped steel shield constructs restoration structure according to the weak point of above-mentioned prior art, should repair the structure and select one of thick reinforced concrete lining cutting, thick shaped steel, steel box body, the deep steel board and hug closely shield tunnel internal face according to the tunnel structure headroom and encircle the setting to consolidate and restore shield tunnel structure.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the composite type steel shield repairing structure with the complex section is characterized in that the repairing structure is one of a thick reinforced concrete lining, thick steel, a steel box body and a thick steel plate which are closely attached to the inner wall surface of a shield tunnel and arranged in a surrounding mode, wherein the thickness of the thick reinforced concrete lining is 300mm, the thickness of the thick steel is 200mm, the thickness of the steel box body is 200mm, and the thickness of the thick steel plate is 20-30 mm.
The thick reinforced concrete lining comprises a reinforced net piece laid on the inner wall surface of the shield tunnel and a reinforced concrete lining poured on the reinforced net piece or a concrete lining sprayed on the reinforced net piece.
The thick steel sections are tightly attached to the inner wall surface of the shield tunnel through chemical anchor bolts, and the thick steel sections are welded and assembled into a ring.
The steel box bodies are arranged on the inner wall surface of the shield tunnel in a clinging mode through chemical anchor bolts, and the steel box bodies are welded and assembled into a ring.
The thick steel plates are tightly attached to the inner wall surface of the shield tunnel through chemical anchor bolts, and the thick steel plates are welded and assembled into a ring.
The utility model has the advantages that: the repair structure is simple, different construction processes can be adopted to reinforce and repair the tunnel structure according to different reserved clearance sizes of the tunnel, the settlement and convergence deformation of the shield tunnel are effectively controlled, and the safe operation of the subway is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a shield repairing structure when the structural clearance of the present invention satisfies 200-300 mm;
FIG. 2 is a schematic diagram of the shield repairing structure of the present invention when the structural clearance satisfies 100-200 mm;
fig. 3 is the structural schematic diagram is repaired to the shield when the mesostructure headroom is less than 100 mm.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
referring to fig. 1-3, the symbols in the figures are: the tunnel comprises a shield tunnel 1, a thick reinforced concrete lining 2, a thick steel section or steel box body 3 and a thick steel plate 4.
Example (b): as shown in fig. 1, 2 and 3, the embodiment specifically relates to a composite type steel shield repairing structure with a complex section, and different structural schemes are selected according to different structure clearance sizes for the repairing structure:
when the structural clearance satisfies 200-300mm, as shown in fig. 1, the thick reinforced concrete lining 2 is closely arranged on the inner wall surface of the shield tunnel 1, and the thickness of the thick reinforced concrete lining 2 is 200-300mm, and comprises a reinforced mesh sheet laid on the inner wall surface of the shield tunnel 1 and a reinforced concrete lining poured on the reinforced mesh sheet or a concrete lining sprayed on the reinforced mesh sheet. During construction, the reinforced mesh can be laid firstly, and then the reinforced concrete lining or the sprayed concrete lining is cast, and the construction method can carry out concrete pouring in sections and layers.
When the structural clearance meets the requirement of 100-plus-200 mm, as shown in figure 2, the thick steel or steel box body 3 is closely arranged on the inner wall surface of the shield tunnel 1 in a surrounding manner, the thickness of the thick steel or steel box body 3 is 100-plus-200 mm, during construction, the thick steel or steel box body 3 is firstly laid to form a ring, the thick steel or steel box body 3 is fixed on the inner wall surface of the shield tunnel 1 by adopting a chemical anchor bolt, rigid epoxy slurry is filled in an annular gap, and finally, the anticorrosion treatment is carried out.
When the structural clearance is less than 100mm, as shown in fig. 3, a thick steel plate 4 is closely arranged on the inner wall surface of the shield tunnel 1 in a surrounding mode, the thickness of the thick steel plate 4 is 20-30mm, during construction, the thick steel plate 4 is laid to form a ring and fixed on the inner wall surface of the shield tunnel 1 through a chemical anchor bolt, then edge sealing of the thick steel plate 4 is carried out through elastic epoxy cement, then an annular gap is filled with rigid epoxy slurry, and finally corrosion prevention treatment is carried out on the thick steel plate 4.
It should be noted that plugging in the tunnel and cleaning the surface of the segment should be performed before the shield tunnel 1 is reinforced. When the inner surface of the damaged shield tunnel 1 has a leakage phenomenon, the water and leakage stoppage in the shield tunnel 1 needs to be carried out by adopting drilling, punching and pressure injection of acrylate slurry or buried pipe pressure injection of polyurethane slurry at the structural joint in advance, the damaged part of the structure is repaired after the leakage stoppage is finished, hydrophilic epoxy slurry is pressure injected into the crack of the inner surface of the structure, and then the inner surface of the structure is repaired by adopting processes of composite type complex section profile steel and the like.
In addition, during the construction period of the repair structure, the shield tunnel 1 is monitored in real time, the monitoring content comprises settlement and convergence deformation, and the control value of the settlement and the convergence deformation is less than or equal to 2 mm.
Claims (5)
1. The composite type steel shield repairing structure with the complex section is characterized in that the repairing structure is one of a thick reinforced concrete lining, thick steel, a steel box body and a thick steel plate which are closely attached to the inner wall surface of a shield tunnel and arranged in a surrounding mode, wherein the thickness of the thick reinforced concrete lining is 300mm, the thickness of the thick steel is 200mm, the thickness of the steel box body is 200mm, and the thickness of the thick steel plate is 20-30 mm.
2. The composite type steel shield repairing structure with the complex section as claimed in claim 1, wherein the thick reinforced concrete lining comprises a reinforced mesh sheet laid on the inner wall surface of the shield tunnel and a reinforced concrete lining cast on the reinforced mesh sheet or a concrete lining sprayed on the reinforced mesh sheet.
3. The composite type steel shield repairing structure with the complex section as claimed in claim 1, wherein the thick steel is tightly attached to the inner wall surface of the shield tunnel through a chemical anchor bolt, and the thick steel is welded, assembled and looped.
4. The composite type steel shield repairing structure with the complex section as claimed in claim 1, wherein the steel box bodies are arranged on the inner wall surface of the shield tunnel in a clinging manner through chemical anchor bolts, and the steel box bodies are welded, assembled and formed into a ring.
5. The composite type steel shield repairing structure with the complex section as claimed in claim 1, wherein the thick steel plates are tightly attached to the inner wall surface of the shield tunnel through chemical anchor bolts, and the thick steel plates are welded, assembled and looped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022554575.1U CN214062961U (en) | 2020-11-08 | 2020-11-08 | Compound complicated section shaped steel shield constructs restoration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022554575.1U CN214062961U (en) | 2020-11-08 | 2020-11-08 | Compound complicated section shaped steel shield constructs restoration structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214062961U true CN214062961U (en) | 2021-08-27 |
Family
ID=77399876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022554575.1U Active CN214062961U (en) | 2020-11-08 | 2020-11-08 | Compound complicated section shaped steel shield constructs restoration structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214062961U (en) |
-
2020
- 2020-11-08 CN CN202022554575.1U patent/CN214062961U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422674B (en) | Prefabricated concrete structure Cast-in-Situ Segment concrete construction method | |
| CN105332710B (en) | Suitable for the overlapping tunnel construction method up and down of small interval long range under Unfavorable geology | |
| CN105179875B (en) | The trenchless repairing method that a kind of soft stratum drainage pipeline deformation is collapsed | |
| CN112901207B (en) | Treatment method for collapse in tunnel during arch change of secondary lining in sulfate corrosion section of operation tunnel | |
| CN106121658B (en) | Freezing method sinking shaft well wall supporting structure and construction method thereof | |
| CN103437417B (en) | Part repair structure for steel lining of drainage pipeline | |
| CN114109442B (en) | Tunnel karst crushing belt sliding collapse half-section curtain progressive grouting reinforcement treatment method | |
| CN101748742B (en) | Dual-plugging construction method of concrete and flange for depressurization well | |
| CN214062961U (en) | Compound complicated section shaped steel shield constructs restoration structure | |
| KR20130031127A (en) | Repair method for pipeline | |
| CN203363529U (en) | Concrete pipe repairing device of water supply prestress steel cylinder | |
| CN202927358U (en) | A steel liner repair structure of a large-diameter concrete non-bearing pipeline fissure | |
| CN103968186A (en) | Repair construction method for water supply pre-stressed concrete cylinder pipe | |
| CN210510729U (en) | Reinforcing and reinforcing structure of pipeline | |
| CN209162799U (en) | Underground continuous wall connector leakage-resistant device | |
| CN215252918U (en) | Deep foundation pit supporting structure of soft soil foundation high-pressure-bearing water environment adjacent to high-speed rail | |
| CN214940041U (en) | Water leakage prevention structure of diaphragm wall | |
| CN114215555A (en) | Concrete impermeability method for repairing tunnel leakage water | |
| CN102797483A (en) | Pile casing and water-rich strata shield pile casing receiving method | |
| CN203498985U (en) | Local repair structure for steel lining of exhaust pipeline | |
| RU2459084C1 (en) | Method for vertical borehole reconstruction | |
| CN112112248A (en) | Method for repairing defect of channel box | |
| CN215890044U (en) | Tunnel and culvert reinforcing aid | |
| CN115163115B (en) | Intersection structure of large-diameter shield tunnel connection channel and construction method | |
| CN112050021B (en) | On-site repairing method of JPCCP (joint sealing gasket pipe) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |