CN106150527A - Containing middle buried water stop tunnel double-lining chassis air bag mould end blocking method - Google Patents
Containing middle buried water stop tunnel double-lining chassis air bag mould end blocking method Download PDFInfo
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- CN106150527A CN106150527A CN201510129675.0A CN201510129675A CN106150527A CN 106150527 A CN106150527 A CN 106150527A CN 201510129675 A CN201510129675 A CN 201510129675A CN 106150527 A CN106150527 A CN 106150527A
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Abstract
The present invention provides a kind of tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop, it is particularly well-suited to the standard interval Tunnel Engineering such as mountain tunnel, underground railway, electrothermal forces tunnel, air bag mould circumferentially construction joint waterstop medial and lateral are effectively fixed, install section by section, inflate, make between air bag and trolley formwork panel, air bag and waterstop, air bag and splash guard closely connected, control the air bag own dimensions after inflation, it is ensured that middle buried water stop is longitudinal at construction joint, hoop is the most placed in the middle；After air bag installation, at the chassis end elongated plank of hoop solid matter, and with timber wedge, it is fixed.Advantage of the process is that easy to operate, work efficiency is high, low cost, spillage are few, pressure-bearing is high.
Description
Technical field
The present invention relates to a kind of tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop, be particularly well-suited to the standard interval Tunnel Engineering such as mountain tunnel, underground railway, electrothermal forces tunnel.
Background technology
In China, the running tunnel engineering arch walls two such as mountain tunnel, underground railway, electrothermal forces tunnel serve as a contrast and substantially have employed trolley formwork support system, owing to use function, cross dimensions and the structural thickness in tunnel are not quite similar, and the way of construction joint differs, the end blocking method causing trolley formwork is of all kinds.
In construction joint employing, buried water stop is easy to operate, stagnant water effect obvious, therefore, currently used extremely wide.According to related specifications requirement, in use during buried water stop, it is necessary to make waterstop in construction joint two-way between two parties.
At present, the end blocking method of the tunnel double-lining chassis containing middle buried water stop mainly has following two: 1. first method is that chassis termination is moved in the middle part of hoop waterstop, lining plank is used to be filled with outside waterstop, filling thickness is equal to two lining structure thickness and the 1/2 of the difference of waterstop thickness, lining plank width is the 1/2 of sealing bandwidth, lining plank edge keeps flushing with waterstop edge, hoop solid matter plank is used to block inside waterstop, plank is impacted by hoop, outer liner panel can be made, waterstop and inner side plank are closely connected, finally carry out longitudinal reinforcement at waterstop outer liner panel edge welding circumferential reinforcement, stiffener is welded on ectonexine distributing reinforcement respectively, stiffener spacing is 30-50cm；2. second method is that chassis termination is moved to sealing belt edge, waterstop medial and lateral all use lining plank to be filled with, filling thickness is equal to two lining structure thickness and the 1/2 of the difference of waterstop thickness, lining plank width is the 1/2 of waterstop width, chassis end, lining plank edge, waterstop edge keep flushing, finally outside chassis end, the elongated plank of solid matter carries out longitudinal reinforcement, and plank termination is only by splash guard.
Learnt by site operation analysis and summary, existing two kinds of running tunnels two containing middle buried water stop serve as a contrast chassis end blocking method and there is following defect: 1. two kinds of methods are required to artificial inside waterstop or a large amount of lining planks are filled in outside, limited length is often saved due to lining plank, cause installing and removing inconvenience, and lost time is longer, it is unfavorable for two lining construction progress control；2. lining plank is after using 2-3 time, and a large amount of concrete of surface adhesion has certain contraction distortion simultaneously, is not easy to reuse, need to be replaced in time.Therefore, lining plank is used to be unfavorable for two lining construction cost controls；3. outside first method hoop waterstop, use reinforcement welding to reinforce; do not form hoop to close; along with concrete persistently pours; the longitudinal pressure that end head formwork is subject to is gradually increased; the swollen mould in local or the phenomenon of spillage easily occur outside waterstop, waterstop construction joint in this place will certainly be caused not placed in the middle, simultaneously because serosity leaks outside; concrete strength at this can be caused to reduce, be unfavorable for two lining quality control on construction；4. in second method waterstop, outside all uses lining plank to be filled with, owing to chassis termination flushes with waterstop edge, lining plank edge, manually it is difficult to lining plank and waterstop are applied circumferential pressure, cause between inner liner panel and trolley formwork panel, interior outer liner panel and waterstop, outer liner panel and splash guard the most closely connected, in concreting process, have a large amount of serosity at construction joint to leak outside, circular construction joint concrete strength is caused to reduce, easily cause later stage circular construction joint to leak, be unfavorable for two lining quality control on construction；5. in concreting process, when especially pouring to vault, the longitudinal pressure that can bear due to end head formwork is limited, frequently can lead to vault concreting leakiness, locally lying in cavitation, this is also the common quality defect that running tunnel arch wall two serves as a contrast easily appearance.
Summary of the invention
The present invention provides a kind of tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop, has advantage easy to operate, that work efficiency is high, low cost, spillage are few, pressure-bearing is high.
Tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop, including step: 1. chassis location: include the dimensional check of chassis absolute altitude, center line, chassis in the process of walking, observes whether chassis termination moves to sealing belt edge；2. all air bags are inflated by airbag aeration: in a pre-installation, check whether pneumatophore or valve cock exist gas leak phenomenon；3. air bag mould is installed: air bag mould circumferentially construction joint waterstop medial and lateral are effectively fixed, install section by section, inflate, make between air bag and trolley formwork panel, air bag and waterstop, air bag and splash guard closely connected, control the air bag own dimensions after inflation, in guarantee, buried water stop is longitudinal at construction joint, hoop is the most placed in the middle, after single-unit has been inflated, check that the stationary state of waterstop and closely connected degree, qualified rear order install next joint；4. termination plank is reinforced: after air bag installation, at the chassis end elongated plank of hoop solid matter, and be fixed it with timber wedge.
Modal circumferential stiffening rib it is provided with on timber wedge.
Chassis end, cell edges, middle buried water stop edge are in same section.
Inflation rear gasbag ovalize, longitudinal axis size is equal to the 1/2 of middle buried water stop width, and hoop axial dimension is equal to two lining structure thickness and the 1/2 of the difference of waterstop thickness.
When pouring to chassis vault, pass through pumping pressure, it is ensured that concreting is closely knit, occur without cavitation.
The tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop of the present invention, has the advantage that
The most easy to operate: after chassis is had good positioning, only air bag mould circumferentially construction joint waterstop medial and lateral effectively need to be fixed, after inflation completes, carry out termination with elongated plank and reinforce.
2. work efficiency is high: the most existing two kinds of end blocking methods, has saved lining plank and has installed and the plenty of time of dismounting, the beneficially construction organization of next process.
3. low cost: as a example by the standard section of underground railway interval: single-unit air bag mould length is based on 4m, and completing end head formwork installation needs 8 joints, market unit price to be 500-600 unit/joint altogether, only need to disposably put into 4000-4800 unit, and can reuse.Existing two kinds of end blocking methods, end-blocking needs to consume 15-20 and opens the foam spacer plate of 2m × 1m × 0.02m specification every time, and unit price is 50 yuan/, needs 750-1000 unit altogether, easily adheres to concrete because of lining plank, and be easily deformed, use 2-3 time and need to be replaced.Comprehensive statistics, existing end blocking method two serves as a contrast the cost of concreting 10-15 time and disposably puts into quite with air bag form.Therefore, for relatively long tunnel, select air bag form to carry out chassis end-blocking, beneficially two lining construction cost controls.
4. spillage is few: by being inflated air bag, pressurizeing so that closely connected between air bag and trolley formwork panel, air bag and waterstop, air bag and splash guard, and construction joint hoop forms bigger pressure, and during two lining concreting, spillage is few.
5. pressure-bearing is high: circular construction joint passes through air sac pressing, forms bigger pressure, and the chassis end elongated plank of solid matter, the longitudinal pressure that concrete transmits can be born, when pouring to chassis vault, pass through pumping pressure, can guarantee that concreting is closely knit, occur without cavitation.
Accompanying drawing explanation
Fig. 1 is the sectional drawing that the present invention contains the tunnel double-lining chassis air bag mould end blocking method of middle buried water stop；
Fig. 2 is the profile that the present invention contains the tunnel double-lining chassis air bag mould end blocking method of middle buried water stop；
In figure: 1 is middle buried water stop；2 is air bag；3 is splash guard；4 is trolley formwork panel；5 is elongated plank；6 is timber wedge；7 is chassis end modal circumferential stiffening rib；8 is the concrete that need to dig out.
Detailed description of the invention
Tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop 1, including:
Step one, chassis position: include the dimensional check of chassis absolute altitude, center line, and chassis in the process of walking, observes whether chassis termination moves to waterstop 1 edge；
Step 2, air bag 2 are inflated: in a pre-installation, are inflated all air bags 2, check whether pneumatophore or valve cock exist gas leak phenomenon；
Step 3, air bag mould are installed: air bag mould is circumferentially effectively fixed construction joint waterstop 1 medial and lateral, install section by section, inflate, make between air bag 2 and trolley formwork panel 4, air bag 2 and waterstop 1, air bag 2 and splash guard 3 closely connected, control air bag 2 own dimensions after inflation, in guarantee, buried water stop 1 is longitudinal at construction joint, hoop is the most placed in the middle, after single-unit has been inflated, check that the stationary state of waterstop 1 and closely connected degree, qualified rear order install next joint；
Step 4, termination plank are reinforced: after air bag 2 installation, at the chassis end elongated plank of hoop solid matter 5, and be fixed it with timber wedge 6, can stop longitudinally swollen mould.
Modal circumferential stiffening rib 7 it is provided with on timber wedge 6.
Chassis end, air bag 2 edge, middle buried water stop 1 edge are in same section.
Inflation rear gasbag 2 ovalize, longitudinal axis size is equal to the 1/2 of middle buried water stop 1 width, and hoop axial dimension is equal to two lining structure thickness and the 1/2 of the difference of waterstop 1 thickness.
When pouring to chassis vault, pass through pumping pressure, it is ensured that concreting is closely knit, occur without cavitation.
Claims (4)
1. the tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop, it is characterised in that including:
Step one, chassis position: include the dimensional check of chassis absolute altitude, center line, and chassis in the process of walking, observes whether chassis termination moves to sealing belt edge；
All air bags are inflated by step 2, airbag aeration: in a pre-installation, check whether pneumatophore or valve cock exist gas leak phenomenon；
Step 3, air bag mould are installed: air bag mould circumferentially construction joint waterstop medial and lateral are effectively fixed, install section by section, inflate, make between air bag and trolley formwork panel, air bag and waterstop, air bag and splash guard closely connected, control the air bag own dimensions after inflation, in guarantee, buried water stop is longitudinal at construction joint, hoop is the most placed in the middle, after single-unit has been inflated, check that the stationary state of waterstop and closely connected degree, qualified rear order install next joint；
Step 4, termination plank are reinforced: after air bag installation, at the chassis end elongated plank of hoop solid matter, and be fixed it with timber wedge.
Tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop the most according to claim 1, it is characterised in that be provided with modal circumferential stiffening rib on timber wedge.
Tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop the most according to claim 1, it is characterised in that chassis end, cell edges, middle buried water stop edge are in same section.
4. according to the tunnel double-lining chassis air bag mould end blocking method containing middle buried water stop described in any one of claim 1-3, it is characterized in that, inflation rear gasbag ovalize, longitudinal axis size is equal to the 1/2 of middle buried water stop width, and hoop axial dimension is equal to two lining structure thickness and the 1/2 of the difference of waterstop thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129675.0A CN106150527A (en) | 2015-03-24 | 2015-03-24 | Containing middle buried water stop tunnel double-lining chassis air bag mould end blocking method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129675.0A CN106150527A (en) | 2015-03-24 | 2015-03-24 | Containing middle buried water stop tunnel double-lining chassis air bag mould end blocking method |
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| CN106150527A true CN106150527A (en) | 2016-11-23 |
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| CN201510129675.0A Pending CN106150527A (en) | 2015-03-24 | 2015-03-24 | Containing middle buried water stop tunnel double-lining chassis air bag mould end blocking method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269301A (en) * | 2017-08-17 | 2017-10-20 | 中铁局集团有限公司 | A kind of Tunnel Second Lining Construction air bag termination device and end-blocking construction method |
| CN107489435A (en) * | 2017-09-30 | 2017-12-19 | 济南市市政工程设计研究院（集团）有限责任公司 | A kind of changeable type inflatable waterstop for Tunneling by mining method |
| CN108019226A (en) * | 2017-12-29 | 2018-05-11 | 中国铁道科学研究院铁道建筑研究所 | A kind of tunnel lining trolley end head formwork |
| CN108301848A (en) * | 2018-04-04 | 2018-07-20 | 湖南五新隧道智能装备股份有限公司 | A kind of lining construction plugging device |
| CN108952767A (en) * | 2018-08-01 | 2018-12-07 | 中铁十七局集团有限公司 | A kind of flexible overlap joint template component and its flexibility lapping construction method of lining trolley |
| CN113605455A (en) * | 2021-07-29 | 2021-11-05 | 中天建设集团有限公司 | Construction method for basement expansion joint with inflatable air bag water stop structure |
| CN117988897A (en) * | 2024-03-29 | 2024-05-07 | 中铁九局集团第七工程有限公司 | Plug board capable of automatically filling middle-buried water stop |
-
2015
- 2015-03-24 CN CN201510129675.0A patent/CN106150527A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269301A (en) * | 2017-08-17 | 2017-10-20 | 中铁局集团有限公司 | A kind of Tunnel Second Lining Construction air bag termination device and end-blocking construction method |
| CN107489435A (en) * | 2017-09-30 | 2017-12-19 | 济南市市政工程设计研究院（集团）有限责任公司 | A kind of changeable type inflatable waterstop for Tunneling by mining method |
| CN107489435B (en) * | 2017-09-30 | 2023-08-18 | 济南市市政工程设计研究院（集团）有限责任公司 | Replaceable inflatable water stop for mine tunnel |
| CN108019226A (en) * | 2017-12-29 | 2018-05-11 | 中国铁道科学研究院铁道建筑研究所 | A kind of tunnel lining trolley end head formwork |
| CN108019226B (en) * | 2017-12-29 | 2024-05-24 | 中国铁道科学研究院铁道建筑研究所 | Tunnel lining trolley end template |
| CN108301848A (en) * | 2018-04-04 | 2018-07-20 | 湖南五新隧道智能装备股份有限公司 | A kind of lining construction plugging device |
| CN108301848B (en) * | 2018-04-04 | 2024-03-19 | 湖南五新隧道智能装备股份有限公司 | Plugging device for lining construction |
| CN108952767A (en) * | 2018-08-01 | 2018-12-07 | 中铁十七局集团有限公司 | A kind of flexible overlap joint template component and its flexibility lapping construction method of lining trolley |
| CN113605455A (en) * | 2021-07-29 | 2021-11-05 | 中天建设集团有限公司 | Construction method for basement expansion joint with inflatable air bag water stop structure |
| CN117988897A (en) * | 2024-03-29 | 2024-05-07 | 中铁九局集团第七工程有限公司 | Plug board capable of automatically filling middle-buried water stop |
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Application publication date: 20161123 |