CN109441490B - Quick-mounting and dismounting stacked shield modular steel support reinforcing structure - Google Patents
Quick-mounting and dismounting stacked shield modular steel support reinforcing structure Download PDFInfo
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- CN109441490B CN109441490B CN201910001422.3A CN201910001422A CN109441490B CN 109441490 B CN109441490 B CN 109441490B CN 201910001422 A CN201910001422 A CN 201910001422A CN 109441490 B CN109441490 B CN 109441490B
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- steel support
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 160
- 239000010959 steel Substances 0.000 title claims abstract description 160
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 20
- 238000004062 sedimentation Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/12—Temporary supports for use during building; Accessories
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a stacked shield modular steel support reinforcing structure capable of being quickly installed and detached, wherein the inner side of a lower shield tunnel segment is provided with a circular I-steel main support; the annular I-steel total support is in a circular ring shape and consists of a plurality of circular arc-shaped annular I-steel supports; the two top end modules are connected through a corresponding annular I-steel support and a corresponding horizontal steel support; the two bottom end modules are connected through another annular I-steel support; the two top end modules and the two bottom end modules are in one-to-one correspondence; the top end module and the bottom end module which are mutually corresponding are connected through another annular I-shaped steel support and a vertical steel support. The invention can provide reliable supporting and reinforcing measures for the lower shield, simplifies the site operation procedure through the modularized design of the steel supporting and reinforcing system, and realizes the beneficial effects of quick installation and disassembly of the steel support.
Description
Technical Field
The invention belongs to the technical field of building structures, and particularly relates to a stacked shield modular steel support reinforcing structure capable of being quickly installed and detached.
Background
Subway is built in a crowded city, the trend of the lines is often limited by buildings such as high-rise buildings, overhead bridge piles, street crossing channels, existing pipelines and the like, and various schemes for improving construction difficulty and construction risk have to be adopted. Because the width of the underground space is limited, or a plurality of subways are built in parallel, the situation that metro sections are overlapped in Beijing, tianjin, shanghai and other cities is more and more increased. In the overlapping section, no matter the upper layer tunnel is constructed first or the lower layer tunnel is constructed first, the later construction can all influence the structure of earlier construction. The construction is firstly carried out up and down, disturbance of the lower tunnel construction to the stratum enables the stratum to generate a sedimentation tank, sedimentation of the stratum drives the upper tunnel to generate sedimentation, and not only can superposition effect of ground sedimentation be generated, but also safety of the upper existing tunnel is threatened. The construction is performed firstly downwards and then upwards, so that the uncertainty of settlement of an upper tunnel is avoided, but a new problem is brought. The shield machine is used as a construction machine with huge body, the dead weight of the shield machine can reach more than 30 tons or even higher, and the larger overload on the upper layer is transferred downwards along with surrounding soil bodies to directly act on the existing structure on the lower layer, so that the safety of a lower layer tunnel is threatened.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the stacked shield modular steel support reinforcing structure capable of being quickly assembled and disassembled, which can provide reliable support reinforcing measures for a lower shield.
In order to solve the technical problems, the invention adopts the following technical scheme: a stack shield modular steel support reinforcing structure capable of being quickly installed and detached comprises a lower shield tunnel segment (1), two top end modules and two bottom end modules;
the inner side of the lower shield tunnel segment (1) is provided with a circular I-steel total support; the annular I-steel total support is in a circular ring shape and consists of a plurality of circular arc-shaped annular I-steel supports (2);
the two top end modules are symmetrical in structure and respectively comprise a circular I-steel support (2), a vertical steel support (3), a horizontal steel support I (4) and a reinforced steel plate I (6); the vertical steel support (3) and the horizontal steel support (4) are fixedly arranged on the inner side of the circular arc of the annular I-shaped steel support (2); the intersection of the vertical steel support (3) and the horizontal steel support (4) is provided with a reinforced steel plate I (6);
the two bottom end modules are symmetrical in structure and respectively comprise a circular I-steel support (2), a vertical steel support (3), a horizontal steel support II (5), a reinforced steel plate I (6) and a reinforced steel plate II (7); the vertical steel support (3) and the horizontal steel support (5) are fixedly arranged on the inner side of the circular arc of the annular I-shaped steel support (2); the joint of the annular I-steel support (2) and the vertical steel support (3) is provided with a reinforced steel plate II (7); the joint of the vertical steel support (3) and the horizontal steel support (5) is provided with a reinforced steel plate I (6);
the two top end modules are connected through a corresponding annular I-steel support (2) and a corresponding horizontal steel support (4); the two bottom end modules are connected through another annular I-steel support (2);
the two top end modules and the two bottom end modules are in one-to-one correspondence; the top end module and the bottom end module which are mutually corresponding are connected through another annular I-shaped steel support (2) and a vertical steel support (3).
Preferably, the joints between a plurality of the vertical steel supports (3) form steel support bolting nodes (8).
Preferably, the connection between the top end module and the bottom end module is a bolt connection.
Preferably, the top end module and the bottom end module are connected by welding.
Preferably, the annular I-steel supports (2) of the top end module and the bottom end module are respectively provided with a connecting I-steel (9).
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides reliable supporting and reinforcing measures for the lower shield and ensures the safety of shield construction.
2. The structure system is reasonable in stress, and can uniformly transfer external loads transferred in all directions, so that the duct piece is prevented from being deformed greatly.
3. According to the invention, the prefabricated annular I-steel support is closely attached to the shield tunnel duct piece, so that the stress concentration phenomenon caused by direct contact between the vertical steel support and the horizontal steel support and the duct piece is avoided, and the duct piece is prevented from being damaged.
4. The modularized design of the steel support reinforcing system simplifies the field operation procedure, realizes the rapid installation and disassembly of the steel support, can synchronously carry out the reinforcement of the lower tunnel steel support and the shield construction of the upper tunnel, and ensures the shield construction period.
5. The inside of each module is welded and connected, and each module is connected by bolts; and after the components in the module are welded into blocks, the components are not disassembled any more, so that the influence on welding quality caused by repeated installation and disassembly of the components is avoided.
6. The steel support reinforcing system reserves the running space of the slag-soil vehicle and the duct piece transport vehicle in the shield tunnel, does not interfere with normal construction of the tunnel, and has good practicability.
7. The invention has high prefabrication degree of factories and higher popularization and industrialization potential through the modularized design of the steel support reinforcing system.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a modular construction of the present invention;
fig. 3 is a schematic view of a longitudinal reinforcement length according to an embodiment of the present invention.
In the figure, the shield tunnel segment at the lower layer is 1-provided with a 2-annular I-steel support, a 3-vertical steel support, a 4-horizontal steel support I, a 5-horizontal steel support II, a 6-reinforced steel plate I, a 7-reinforced steel plate II, an 8-steel support bolting node and a 9-connection I-steel.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the specific embodiments, so that those skilled in the art can better understand the technical solutions of the present invention.
The embodiment of the invention discloses a quickly-assembled and disassembled folding shield modular steel support reinforcing structure, which comprises a lower shield tunnel segment (1), two top end modules and two bottom end modules as shown in the figure;
the inner side of the lower shield tunnel segment (1) is provided with a circular I-steel total support; the annular I-steel total support is in a circular ring shape and consists of a plurality of circular arc-shaped annular I-steel supports (2);
the two top end modules are symmetrical in structure and respectively comprise a circular I-shaped steel support (2), a vertical steel support (3), a horizontal steel support I (4) and a reinforced steel plate I (6); the vertical steel support (3) and the horizontal steel support (4) are fixedly arranged on the inner side of the circular arc of the annular I-shaped steel support (2); the intersection of the vertical steel support (3) and the horizontal steel support (4) is provided with a reinforced steel plate I (6);
the two bottom end modules are symmetrical in structure and respectively comprise a circular I-shaped steel support (2), a vertical steel support (3), a horizontal steel support II (5), a reinforced steel plate I (6) and a reinforced steel plate II (7); the vertical steel support (3) and the horizontal steel support (5) are fixedly arranged on the inner side of the circular arc of the annular I-shaped steel support (2); the joint of the annular I-steel support (2) and the vertical steel support (3) is provided with a reinforced steel plate II (7); the joint of the vertical steel support (3) and the horizontal steel support (5) is provided with a reinforced steel plate I (6);
the two top end modules are connected through a corresponding annular I-steel support (2) and a horizontal steel support (4); the two bottom end modules are connected through another annular I-steel support (2);
the two top end modules and the two bottom end modules are in one-to-one correspondence; the top end module and the bottom end module which are mutually corresponding are connected through another annular I-shaped steel support (2) and a vertical steel support (3).
In this embodiment, the connections between the plurality of vertical steel supports (3) each form a steel support bolting node (8).
In this embodiment, the connection between the top end module and the bottom end module is a bolt connection.
In this embodiment, the top end module and the bottom end module are welded.
In the embodiment, the annular I-steel supports (2) of the top end module and the bottom end module are respectively provided with a connecting I-steel (9).
According to the embodiment, according to the construction background of the overlapping shield at a certain section of the subway at a certain place, the modularized steel support reinforcing system of the overlapping shield, which can be quickly installed and detached, is provided, and is suitable for the overlapping shield tunnel, and when the shield machine tunnels an upper tunnel, the steel support reinforcing system is installed in a lower tunnel to play a role in supporting and reinforcing.
According to the steel support reinforcing system, through a modularized design, the steel support is divided into 9 blocks, namely 3 blocks at the arch bottom of a tunnel, 4 blocks at the arch waist and 2 blocks at the arch top, the inner components of all the modules are connected by welding, and all the modules are connected by bolts; the modularized steel support reinforcing system is provided with arch bottom modules firstly, then provided with arch waist modules, finally provided with arch bottom modules, and the order is reverse during disassembly.
On the premise of meeting the construction sequence of 'first down and then up', effective reinforcement is implemented on the lower shield; through the modularized design of the steel support reinforcing system, the on-site operation procedure is simplified, the steel support is quickly installed and detached, the steel support reinforcing of the lower tunnel and the shield construction of the upper tunnel can be synchronously carried out, and the shield construction period is ensured.
The invention is suitable for long-distance overlapping shield construction, and the assembly speed of the invention can synchronize the pushing speed of the upper shield;
the steel support reinforcing system reserves the running space of the slag-soil vehicle and the duct piece transport vehicle in the shield tunnel, and the door-shaped support form of the steel support reinforcing system does not interfere the normal construction of the tunnel, so that the steel support reinforcing system has good feasibility.
According to the invention, the steel ring is closely attached to the duct piece ring, the steel ring is in surface contact with the duct piece ring, so that the stress is more uniform, and the cooperative deformation capability is stronger.
The average construction speed of the shield in the embodiment is 25 rings/day, and the time for dismantling, transporting and installing 25 rings of supports in a hole is 2 days, so that the reinforcing length of a lower tunnel needs 100 rings, and each ring of segments is provided with 2 rings of steel support reinforcing systems. After the upper shield machine passes through, the corresponding lower shield steel support is detached, and then the shield steel support is transported to the shield advancing direction for installation. By continuous disassembly and assembly, a work cycle is formed.
The embodiment is suitable for the stacked shield tunnel, and when the shield machine tunnels the upper layer tunnel, the shield machine is arranged on the lower layer tunnel to play a role in supporting and reinforcing.
The present invention has been described in detail by way of examples, but the description is merely exemplary of the invention and should not be construed as limiting the scope of the invention. The scope of the invention is defined by the claims. In the technical scheme of the invention, or under the inspired by the technical scheme of the invention, similar technical schemes are designed to achieve the technical effects, or equivalent changes and improvements to the application scope are still included in the protection scope of the patent coverage of the invention. It should be noted that for clarity of presentation, descriptions of parts and processes known to those skilled in the art that are not directly apparent to the scope of the present invention have been omitted from the description of the present invention.
Claims (3)
1. The utility model provides a but quick installation and quick dismantlement fold shield constructs modularization steel support reinforced structure, includes lower floor's shield tunnel section of jurisdiction (1), its characterized in that still includes two top modules, two bottom modules;
the inner side of the lower shield tunnel segment (1) is provided with a circular I-steel total support; the annular I-steel total support is in a circular ring shape and consists of a plurality of circular arc-shaped annular I-steel supports (2);
the two top end modules are symmetrical in structure and respectively comprise a circular I-steel support (2), a vertical steel support (3), a horizontal steel support I (4) and a reinforced steel plate I (6); the vertical steel support (3) and the horizontal steel support (4) are fixedly arranged on the inner side of the circular arc of the annular I-shaped steel support (2); the intersection of the vertical steel support (3) and the horizontal steel support (4) is provided with a reinforced steel plate I (6);
the two bottom end modules are symmetrical in structure and respectively comprise a circular I-steel support (2), a vertical steel support (3), a horizontal steel support II (5), a reinforced steel plate I (6) and a reinforced steel plate II (7); the vertical steel support (3) and the horizontal steel support (5) are fixedly arranged on the inner side of the circular arc of the annular I-shaped steel support (2); the joint of the annular I-steel support (2) and the vertical steel support (3) is provided with a reinforced steel plate II (7); the joint of the vertical steel support (3) and the horizontal steel support (5) is provided with a reinforced steel plate I (6);
the two top end modules are connected through a corresponding annular I-steel support (2) and a corresponding horizontal steel support (4); the two bottom end modules are connected through another annular I-steel support (2);
the two top end modules and the two bottom end modules are in one-to-one correspondence; the top end module and the bottom end module which are mutually corresponding are connected through another annular I-steel support (2) and a vertical steel support (3);
the joints among the plurality of vertical steel supports (3) form steel support bolting nodes (8);
the connection between the top end module and the bottom end module is a bolt connection.
2. The rapid installable and disassemble stack shield modular steel support reinforcement structure of claim 1, wherein the top and bottom modules are welded together.
3. The quickly-assembled and disassembled folding shield modular steel support reinforcing structure according to claim 1, wherein the annular I-steel supports (2) of the top end module and the bottom end module are respectively provided with a connecting I-steel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001422.3A CN109441490B (en) | 2019-01-02 | 2019-01-02 | Quick-mounting and dismounting stacked shield modular steel support reinforcing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001422.3A CN109441490B (en) | 2019-01-02 | 2019-01-02 | Quick-mounting and dismounting stacked shield modular steel support reinforcing structure |
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| Publication Number | Publication Date |
|---|---|
| CN109441490A CN109441490A (en) | 2019-03-08 |
| CN109441490B true CN109441490B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910001422.3A Active CN109441490B (en) | 2019-01-02 | 2019-01-02 | Quick-mounting and dismounting stacked shield modular steel support reinforcing structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031832A (en) * | 2019-06-04 | 2020-12-04 | 江苏迅拓机械有限公司 | Support reinforcing apparatus in tunnel overlapping section |
| CN110952987A (en) * | 2019-12-03 | 2020-04-03 | 济南轨道交通集团有限公司 | Construction method for side-through bridge pile of stacked porous subway tunnel |
| CN111894636B (en) * | 2020-08-11 | 2022-03-25 | 中铁电气化局集团有限公司 | Duct piece supporting structure of communication channel of shield interval tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218643A1 (en) * | 1982-05-18 | 1983-11-24 | Philipp Holzmann AG, Hauptniederlassung Düsseldorf, 4000 Düsseldorf | Method of producing an underground tunnel structure |
| CN104314588A (en) * | 2014-07-02 | 2015-01-28 | 北京工业大学 | Strengthening method for arranging support inside shield tunnel |
| CN204327103U (en) * | 2014-12-12 | 2015-05-13 | 中铁十一局集团城市轨道工程有限公司 | A kind of reaction frame started for tunneling shield |
| CN205136858U (en) * | 2015-09-08 | 2016-04-06 | 浙江鑫宙竹基复合材料科技有限公司 | Compound piping lane of prefabricated bamboo |
| CN206246130U (en) * | 2016-11-30 | 2017-06-13 | 河南理工大学 | A kind of roadway support concrete steel pipe support frame device |
| CN206439058U (en) * | 2016-12-22 | 2017-08-25 | 中交铁道设计研究总院有限公司 | A kind of shield tunnel temperature pier support system |
| CN209308703U (en) * | 2019-01-02 | 2019-08-27 | 中铁第六勘察设计院集团有限公司 | It is a kind of can Fast Installation and the folded of disassembly fall shield modularization bracing members ruggedized construction |
-
2019
- 2019-01-02 CN CN201910001422.3A patent/CN109441490B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218643A1 (en) * | 1982-05-18 | 1983-11-24 | Philipp Holzmann AG, Hauptniederlassung Düsseldorf, 4000 Düsseldorf | Method of producing an underground tunnel structure |
| CN104314588A (en) * | 2014-07-02 | 2015-01-28 | 北京工业大学 | Strengthening method for arranging support inside shield tunnel |
| CN204327103U (en) * | 2014-12-12 | 2015-05-13 | 中铁十一局集团城市轨道工程有限公司 | A kind of reaction frame started for tunneling shield |
| CN205136858U (en) * | 2015-09-08 | 2016-04-06 | 浙江鑫宙竹基复合材料科技有限公司 | Compound piping lane of prefabricated bamboo |
| CN206246130U (en) * | 2016-11-30 | 2017-06-13 | 河南理工大学 | A kind of roadway support concrete steel pipe support frame device |
| CN206439058U (en) * | 2016-12-22 | 2017-08-25 | 中交铁道设计研究总院有限公司 | A kind of shield tunnel temperature pier support system |
| CN209308703U (en) * | 2019-01-02 | 2019-08-27 | 中铁第六勘察设计院集团有限公司 | It is a kind of can Fast Installation and the folded of disassembly fall shield modularization bracing members ruggedized construction |
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| CN109441490A (en) | 2019-03-08 |
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