CN102444408B - Secondary lining split mounting type blocking head device for metro underground excavation tunnel - Google Patents
Secondary lining split mounting type blocking head device for metro underground excavation tunnel Download PDFInfo
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- CN102444408B CN102444408B CN201110367828.7A CN201110367828A CN102444408B CN 102444408 B CN102444408 B CN 102444408B CN 201110367828 A CN201110367828 A CN 201110367828A CN 102444408 B CN102444408 B CN 102444408B
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- steel plate
- blocking head
- secondary lining
- reinforced
- stopper
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Abstract
The invention particularly relates to a secondary lining split mounting type blocking head device for a metro underground excavation tunnel, which resolves the problems that due to an unreasonable structure of an existing secondary lining blocking head device, reinforced steel bar at construction joints is prone to be broken and waterproof materials cannot be installed in the right positions. The secondary lining split mounting type blocking head device comprises an arc blocking head steel plate which is formed of a plurality of steel plate base bodies, wherein a longitudinal reinforced steel bar clamp groove is arranged at the outer arc edge of each steel plate base body, a key groove shaped bolt hole is arranged on one side of the inner arc of each steel plate base body, a bolt is screwed in the bolt hole, the inner side of the blocking head base body is provided with an arc reinforced steel bar fixed with the section of a secondary lining trolley, radially arranged reinforced sleeves are evenly distributed and fixed on the reinforced steel bar, reinforced steel tubes are arranged in the reinforced sleeves, wood wedges are plugged between the reinforced steel tubes and the blocking head steel plates, and a galvanized water stopping steel plate is welded on an outer arc end face of the blocking head steel plate in point mode. The secondary lining split mounting type blocking head device is reasonable in structural design, can buffer force deformation, is supported and fixed by the reinforced steel tubes, is good in waterproof effect, and has the advantages of being simple in process, convenient in operation and capable of saving cost.
Description
Technical field
The present invention relates to metro built by mining method stopper device, be specially a kind of secondary lining assembled head blocking device for subway mined tunnel.
Background technology
Shield method is selected in Bored Section of Metro tunnel more and more.But, because shield method is not suitable for constructing in uneven strata; Line, the complicated section construction of branch-cut bridge equal section can not be applicable to turn back; Distance between centers of tracks location less than normal, the construction of pile foundation underpinning section.And Mining Method in, uneven, the shallow buried covered excavation section of micro-weathered layer, distribution of strata and be unsuitable for the engineering method that shield construction location is still frequent selection.Two lining construction natures become an important step in mining method construction.
Yet during existing secondary lining stopper device construction, exist the easy disconnection of constuction joint place reinforcing bar and waterproofing materials that the defects such as not in place are installed, can not guarantee the poor requirement that is controlled at permission deformation range, hoop water-tight of Longitudinal Settlement of underground structure.
Summary of the invention
The present invention installs problem not in place in order to solve existing secondary lining stopper device because unreasonable structure causes the easy disconnection of constuction joint place reinforcing bar and waterproofing materials, and a kind of secondary lining assembled head blocking device for subway mined tunnel is provided.
The present invention adopts following technical scheme to realize: secondary lining assembled head blocking device for subway mined tunnel, comprise arcuation stopper steel plate, stopper steel plate is by some block plate matrix compositions, the outer arc limit of steel matrix has longitudinal reinforcement draw-in groove radially, inner arc one side of steel matrix has keyway shape bolt hole, bolt hole is screwed with the bolt being connected with two lining chassis external arc sections, stopper steel plate inner side is provided with the arcuation reinforcing bar fixing with two lining chassis sections, the uniform reinforcing sleeve radially arranging that is fixed with on reinforcing bar, reinforce in sleeve and be provided with the reinforcing steel pipe that is positioned at stopper steel plate rear surface one side, reinforce between steel pipe and stopper steel plate rear surface and be plugged with timber wedge, stopper steel plate external arc end face point is welded with zinc-plated steel plate for sealing water.During operation, every plate two lining longitudinal reinforcements are all by the elongated overlap joint of code requirement except deformation joint, and longitudinal reinforcement spacing, topping meet designing requirement, and the zinc-plated steel plate for sealing water of hoop is accurately in place by designing requirement simultaneously.
Reasonable in design of the present invention is reliable, overcome existing secondary lining stopper device, because unreasonable structure causes the easy disconnection of constuction joint place reinforcing bar and waterproofing materials, problem not in place has been installed, the structure design of steel matrix has cushioned its stress deformation, and fix by reinforcing steel pipe support, waterproof effect is better, has advantages of that technique is simple, easy and simple to handle, recyclable material utilization and cost-saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-steel matrix, 2-longitudinal reinforcement draw-in groove, 3-bolt hole, 4-reinforcing bar, 5-reinforces sleeve, and 6-reinforces steel pipe, the zinc-plated steel plate for sealing water of 7-.
The specific embodiment
Secondary lining assembled head blocking device for subway mined tunnel, comprise arcuation stopper steel plate, stopper steel plate is comprised of some block plate matrixes 1, the outer arc limit of steel matrix 1 has longitudinal reinforcement draw-in groove 2 radially, inner arc one side of steel matrix 1 has keyway shape bolt hole 3, bolt hole 3 is screwed with the bolt being connected with two lining chassis external arc sections, stopper steel plate inner side is provided with the arcuation reinforcing bar 4 fixing with two lining chassis sections, the uniform reinforcing sleeve 5 radially arranging that is fixed with on reinforcing bar 4, reinforce in sleeve 5 and be provided with the reinforcing steel pipe 6 that is positioned at stopper steel plate rear surface one side, reinforce between steel pipe 6 and stopper steel plate rear surface and be plugged with timber wedge, stopper steel plate external arc end face point is welded with zinc-plated steel plate for sealing water 7.In specific implementation process, the default Φ 50 of two lining chassis termination interval 50cm reinforces sleeve 5 and adopts Φ 42 to reinforce steel pipe 6 and reinforces, reinforce sleeve 5 and adopt Φ 22 reinforcing bars 4 connections to keep 30mm spacing with chassis termination steel plate so that timber wedge is auxiliary to be reinforced, stopper steel plate employing Φ 22 bolts and two lining chassis termination steel plates are connected and fixed.During use, two lining chassis are in place and check the indexs such as center line, vault absolute altitude, lining section, and qualified rear block-by-block is installed steel matrix; Longitudinal reinforcement is accurately put into longitudinal reinforcement draw-in groove 2 can guarantee longitudinal reinforcement spacing and protective layer thickness; Bolt hole 3 is designed to prolate type structure, is beneficial to steel matrix 1 fine setting, to tackle longitudinal reinforcement, in allowed band, suitably adjusts; Φ 22 bolts add packing ring fixation steel plate matrix 1, prevent that in work progress, the loosening de-phenomenon that collapses appears in bolt; In installation during buried zinc-plated steel plate for sealing water 7, by the zinc-plated steel plate for sealing water hoop of straight-plate-type of every joint 2m along stopper steel plate from bottom to up crooked and interval 50cm be spot welded on stopper steel plate, guarantee arc and in minute meet design requirement; Adopt 5cm plank piecemeal to open between longitudinal reinforcement, upstream face utilizes circumferential reinforcement to reinforce, and the hoop cushioning lumps of wood is whole fixing, guarantees that longitudinal reinforcement and ectonexine rebar spacing meet design requirement; Utilize and reinforce steel pipe and timber wedge integral reinforcing stopper steel plate, guarantee not occur in concrete work progress the problem of the phenomenons such as spillage, race mould, fried mould.
Claims (1)
1. a secondary lining assembled head blocking device for subway mined tunnel, it is characterized in that: comprise arcuation stopper steel plate, stopper steel plate is comprised of some block plate matrixes (1), the outer arc limit of steel matrix (1) has longitudinal reinforcement draw-in groove (2) radially, inner arc one side of steel matrix (1) has keyway shape bolt hole (3), bolt hole (3) is screwed with the bolt being connected with two lining chassis external arc sections, stopper steel plate inner side is provided with the reinforcing bar (4) of the arcuation fixing with two lining chassis sections, the upper uniform reinforcing sleeve (5) radially arranging that is fixed with of reinforcing bar (4), reinforce in sleeve (5) and be provided with the reinforcing steel pipe (6) that is positioned at stopper steel plate rear surface one side, reinforce between steel pipe (6) and stopper steel plate rear surface and be plugged with timber wedge, stopper steel plate external arc end face point is welded with zinc-plated steel plate for sealing water (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110367828.7A CN102444408B (en) | 2011-11-18 | 2011-11-18 | Secondary lining split mounting type blocking head device for metro underground excavation tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110367828.7A CN102444408B (en) | 2011-11-18 | 2011-11-18 | Secondary lining split mounting type blocking head device for metro underground excavation tunnel |
Publications (2)
| Publication Number | Publication Date |
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| CN102444408A CN102444408A (en) | 2012-05-09 |
| CN102444408B true CN102444408B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110367828.7A Active CN102444408B (en) | 2011-11-18 | 2011-11-18 | Secondary lining split mounting type blocking head device for metro underground excavation tunnel |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061004B (en) * | 2014-07-10 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Tunnel Second Lining bar construction |
| CN104632253B (en) * | 2014-12-31 | 2017-01-25 | 中铁大桥局集团第四工程有限公司 | Positioning device for tunnel lining construction and construction method |
| CN107313787B (en) * | 2017-07-12 | 2024-02-06 | 济南城建集团有限公司 | Tunnel lining trolley end die and construction method |
| CN113027492B (en) * | 2021-03-31 | 2023-06-27 | 中铁十五局集团第一工程有限公司 | Reinforcement connecting method for rapid construction of tunnel secondary lining reinforcement |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202325550U (en) * | 2011-11-18 | 2012-07-11 | 中铁十二局集团有限公司 | Secondary lining assembled head blocking device for subway mined tunnel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338681B (en) * | 2008-08-08 | 2011-02-09 | 上海市隧道工程轨道交通设计研究院 | Shield tunneling segment pretightening device |
| CN201351498Y (en) * | 2008-12-30 | 2009-11-25 | 中铁隧道勘测设计院有限公司 | Full circular steel segment structure with closed protective door |
| CN101457648B (en) * | 2008-12-30 | 2010-09-01 | 中铁隧道勘测设计院有限公司 | Full-ring steel tunnel segment structure with seal protection door |
| CN101705829B (en) * | 2009-10-21 | 2012-10-03 | 上海隧道工程股份有限公司 | Method for controlling quality of tunnel pipe sheet built by using shield method and pipe sheet structure |
| CN201599040U (en) * | 2010-01-14 | 2010-10-06 | 广州市市政集团有限公司 | Prefabricated segments for shield tunneling |
| CN201771515U (en) * | 2010-06-18 | 2011-03-23 | 中铁第四勘察设计院集团有限公司 | Shield tunnel liner ring in 7+1 partitioned mode |
| CN201953383U (en) * | 2010-11-30 | 2011-08-31 | 中铁十八局集团有限公司 | Stopper hinged type template trolley |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202325550U (en) * | 2011-11-18 | 2012-07-11 | 中铁十二局集团有限公司 | Secondary lining assembled head blocking device for subway mined tunnel |
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