CN104018858A - Novel water stopping structure for tunneling seam in permafrost region - Google Patents
Novel water stopping structure for tunneling seam in permafrost region Download PDFInfo
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- CN104018858A CN104018858A CN201410255991.8A CN201410255991A CN104018858A CN 104018858 A CN104018858 A CN 104018858A CN 201410255991 A CN201410255991 A CN 201410255991A CN 104018858 A CN104018858 A CN 104018858A
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Abstract
A novel water stopping structure for a tunneling seam in a permafrost region is characterized in that the water stopping structure in the circumferential direction is arranged in an engineering seam of a secondary tunnel lining and annularly laid in secondary lining die construction concrete; the novel water stopping structure is an inflatable water stropping strap and provided with a water flowing groove structure, and the water flowing groove faces towards an inner side cold-proof heat-preserving layer; the inflatable water stopping strap is made of soft materials; the water stopping strap is inflated till the outer wall of the water stopping strap is totally attached to the inner wall of a secondary lining concrete groove; the lower end of the inflatable water stopping strap is connected with a gutter of a skewback of a tunnel. In the tunnel construction and operation period, when the temperature of surrounding rock rises and frozen soil thaws, underground water will naturally flow down along the water stopping strap, enter the gutter of the tunnel and be drained out of the tunnel, and therefore it is avoided that the underground water seeps into the tunnel along the secondary lining engineering seam, and cold damage caused by freeze of the underground water is avoided.
Description
Technical field
The present invention relates to tunnel water proofing field, be specifically related to a kind of Novel water-stop structure being applied in permafrost region tunnel project seam.
Background technology
China is only second to Russia, Canadian third place in the world large frozen soil state, along with the high speed development that engineering in permafrost regions is built, more and more in the construction of tunnel of building and planning to build at permafrost region.Anti-water discharge technology in permafrost region constructing tunnel process is the key technology that ensures tunnel safety operation.At present China is in the built construction of tunnel of permafrost region, and quite a few has occurred due to the drainage system freeze injury problem causing that lost efficacy, serious threat Tunnel Stability and travel safety.
After permafrost region tunnel excavation, original Heat And Water Balance system of frozen soil will be broken, and within the tunnel military service phase, may occur because frozen soil melts, underground water infiltrates the liner structure freeze injury problem causing.Current existing permafrost region tunnel water handling technology, mainly may be summarized to be following form:
1, the drainage system as leading taking various forms of gutters and drain cavern;
2, taking the built-in or antipriming of wall-attaching type as leading.
Wherein, permafrost region tunnel drainage system can be because of the growth of service life, causes freezing because frozen soil ground temperature reduces the underground water causing, and makes it lose drainability; On the other hand, the major part of drainage system is laid on after the first backing in tunnel more, and the effect of infiltrating for processing frozen soil melt water is undesirable.For all kinds of water stop structures, most poor problems of stagnant water effect that cause due to construction quality problem that exist; There is the aging and endurance issues that causes of sealing material simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, solve permafrost region tunnel due to the waterproof and water drainage system freeze injury problem causing that lost efficacy, the present invention discloses one and is applied to the Novel water-stop structure in permafrost region tunnel project seam (comprising constuction joint, deformation joint, settlement joint) for this reason.Crucial, the present invention designs the soft material air filling type waterstop with flowing water groove structure, by inside inflation, ensures that itself and tunnel double-lining form concrete fit tightly, and its lower end is connected with tunnel arch springing gutter; Meanwhile, utilize the flowing water groove of side direction in waterstop, make tunnel double-lining underground water nature behind downstream to gutter, to reach discharge underground water, avoid infiltrating because of underground water the liner structure freeze injury problem causing.
For this reason, the concrete technical scheme that the present invention provides is:
For a Novel water-stop structure for permafrost region tunnel project seam, it is characterized in that, the water-stopping structure of hoop direction is set in the engineering seam of tunnel double-lining, in two lining form concretes, lay ringwise; This Novel water-stop structure is an air filling type waterstop 4, and with flowing water groove 41 structures, described flowing water groove 41 is towards the cold-proof heat insulation layer 3 of inner side; Air filling type waterstop is the waterstop of software material; In waterstop, be inflated to waterstop outer wall and two lining concrete groove inwalls are fitted completely; Air filling type waterstop lower end is connected with tunnel arch springing gutter 7.
Air filling type waterstop is round and smooth convex type structure in inner side, tunnel (free face one side) direction, be set to flowing water groove in outside, tunnel (country rock one side), can make underground water following current water groove naturally dirty, and be connected with tunnel arch springing gutter, discharge underground water.Air filling type waterstop inner side is permafrost region tunnel cold-proof heat insulation layer, can ensure that the underground water in flowing water groove does not freeze.During constructing tunnel and operation, in the time that the rising of country rock temperature, frozen soil melt, underground water can be naturally dirty along waterstop, import in tunnel drainage gutter, outside discharge hole, and then avoid underground water to infiltrate in tunnel along two lining engineering seams, avoid freezing because of underground water the freeze injury causing.
Compared with prior art, tool of the present invention has the following advantages:
(1) consider effectively to discharge permafrost region freezing damage in tunnel is threatened to the most serious lining cutting ponding problem behind, propose air filling type Water stop structure, can fundamentally solve and infiltrate the permafrost region tunnel lining freeze injury problem causing because of underground water;
(2) the air filling type water-stopping structure proposing, is arranged in tunnel double-lining engineering seam, can effectively stop the Groundwater infiltration two lining structure inside in tunnel surrounding, has the function of intercepting water; On the other hand, save traditional back-adhering waterstop constructional difficulties and later maintenance expense, greatly saved cost;
(3) the air filling type Water stop structure proposing, in work progress, without plant equipment, melts and mechanical disturbance without any heat frozen soil, pollution-free;
(4) the air filling type Water stop structure proposing, is ensureing under the prerequisite of tunnel double-lining construction quality, can long-term role, there is good durability, without later maintenance personnel and expense.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is air filling type Water stop structure schematic diagram disclosed by the invention.
Fig. 2 is the cross sectional representation of air filling type waterstop.
In figure: 1 country rock; 2 just serve as a contrast concrete; 3 cold-proof heat insulation layers; 4 air filling type waterstops; 41 flowing water grooves; 5 two lining concrete; 7 arch springing gutters.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.
Be followed successively by outside from inner side, tunnel: just serve as a contrast concrete, cold-proof heat insulation layer, two lining form concretes, this is situation well known in the art.
As shown in Figure 1 and Figure 2, the invention discloses the Novel water-stop structure that hoop direction is set in a kind of seam of the engineering at tunnel double-lining,, it is characterized in that for the Novel water-stop structure of permafrost region tunnel project seam for a kind of:
Be arranged in two lining form concrete engineering seams, in two lining form concretes, lay ringwise.
Novel water-stop structure is an air filling type waterstop 4, and with flowing water groove 41 structures, described flowing water groove 41 is towards the cold-proof heat insulation layer 3 of inner side; Air filling type waterstop is selected the waterstop of this class software material of ethylene propylene diene rubber in the present embodiment.The manufacture craft of ethylene propylene terpolymer water stop band adopts prior art, does not belong to the contribution part of the present invention to prior art.
When waterstop is built in two lining concrete one sides, be installed in reserved template groove, after two lining concretings complete, be inwardly inflated to design air pressure by inflation inlet, waterstop outer wall and two lining concrete groove inwalls are fitted completely.
Air filling type waterstop lower end is connected with tunnel arch springing gutter 7.Tunnel arch springing gutter structure and construction thereof belong to routine techniques, common practise in construction of tunnel field.
Work progress:
(1) after tunnel excavation completes, carry out according to a conventional method preliminary bracing, comprise steel mesh reinforcement, anchor pole, steel arch frame, perform just lining sprayed mortar 2 simultaneously.
(2) first lining concrete is carried out, after basal plane processing, performing according to a conventional method cold-proof heat insulation layer 3.
(3) described two lining form concretes are when wherein a side is built, at its reserved groove in middle part, edge, after having built, the manufactured waterstop 4 with flowing water groove 41 is placed in the groove in two lining form concretes 5, flowing water groove 41 is towards cold-proof heat insulation layer 3 direction that are positioned at inner side, and the lower end of waterstop 4 is connected with tunnel arch springing gutter 7.
(5) the two lining form concretes that carry out the other side of tunnel project seam are constructed.
(6) by air-filled pore, in waterstop 4, be inflated to design pressure.
Claims (1)
1. for a Novel water-stop structure for permafrost region tunnel project seam, it is characterized in that, the water-stopping structure of hoop direction is set in the engineering seam of tunnel double-lining, in two lining form concretes, lay ringwise; This Novel water-stop structure is an air filling type waterstop (4), and with flowing water groove (41) structure, described flowing water groove (41) is towards the cold-proof heat insulation layer (3) of inner side; Air filling type waterstop is the waterstop of software material; In waterstop, be inflated to waterstop outer wall and two lining concrete groove inwalls are fitted completely; Air filling type waterstop lower end is connected with tunnel arch springing gutter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255991.8A CN104018858A (en) | 2014-06-11 | 2014-06-11 | Novel water stopping structure for tunneling seam in permafrost region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255991.8A CN104018858A (en) | 2014-06-11 | 2014-06-11 | Novel water stopping structure for tunneling seam in permafrost region |
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| CN104018858A true CN104018858A (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410255991.8A Pending CN104018858A (en) | 2014-06-11 | 2014-06-11 | Novel water stopping structure for tunneling seam in permafrost region |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989451A (en) * | 2015-07-15 | 2015-10-21 | 山东大学 | Method for treating operating tunnel leakage with water diversion plate |
| CN105114106A (en) * | 2015-09-08 | 2015-12-02 | 温州信达交通工程试验检测有限公司 | Tunnel leakage treatment device |
| CN110159319A (en) * | 2019-06-14 | 2019-08-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of tunnel double-lining Water stop structure and construction method |
| CN111322095A (en) * | 2020-04-03 | 2020-06-23 | 上海市隧道工程轨道交通设计研究院 | Built-in combined waterproof connector with elastic filling body and application method thereof |
| CN111322094A (en) * | 2020-04-03 | 2020-06-23 | 上海市隧道工程轨道交通设计研究院 | Built-in combined waterproof joint with inflatable air bag and application method thereof |
| CN113981842A (en) * | 2021-10-26 | 2022-01-28 | 中铁三局集团有限公司 | Construction method of multiple waterproof structures for assembly type culvert joint |
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| JP3942385B2 (en) * | 2001-06-25 | 2007-07-11 | 鹿島建設株式会社 | Tunnel lining structure |
| CN201705369U (en) * | 2010-06-28 | 2011-01-12 | 中铁二十局集团有限公司 | Waterproof structure for tunnels in frozen soil on plateau |
| CN102367735A (en) * | 2011-12-03 | 2012-03-07 | 长安大学 | Back-to-back waterstop installation equipment for tunnel construction joint |
| CN202690084U (en) * | 2012-06-30 | 2013-01-23 | 西北橡胶塑料研究设计院 | Hollow inflatable waterproof rubber tape for water structure seam |
| CN203066121U (en) * | 2013-02-27 | 2013-07-17 | 株洲时代新材料科技股份有限公司 | Camelback rubber waterstop for immersed tube tunnel |
| CN203161256U (en) * | 2013-03-08 | 2013-08-28 | 中铁二十二局集团第一工程有限公司 | Large-span swelling rock tunnel system in severe cold area |
| CN103541740A (en) * | 2013-10-31 | 2014-01-29 | 同济大学 | Structure system for reducing tunnel lining frost heaving force in cold region |
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2014
- 2014-06-11 CN CN201410255991.8A patent/CN104018858A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11324585A (en) * | 1998-05-13 | 1999-11-26 | Nishimatsu Constr Co Ltd | Anticorrosive lining, anticorrosive lining segment, and their manufacture |
| JP3942385B2 (en) * | 2001-06-25 | 2007-07-11 | 鹿島建設株式会社 | Tunnel lining structure |
| CN201705369U (en) * | 2010-06-28 | 2011-01-12 | 中铁二十局集团有限公司 | Waterproof structure for tunnels in frozen soil on plateau |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989451A (en) * | 2015-07-15 | 2015-10-21 | 山东大学 | Method for treating operating tunnel leakage with water diversion plate |
| CN105114106A (en) * | 2015-09-08 | 2015-12-02 | 温州信达交通工程试验检测有限公司 | Tunnel leakage treatment device |
| CN110159319A (en) * | 2019-06-14 | 2019-08-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of tunnel double-lining Water stop structure and construction method |
| CN110159319B (en) * | 2019-06-14 | 2024-04-16 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Water stop belt structure for tunnel secondary lining and construction method |
| CN111322095A (en) * | 2020-04-03 | 2020-06-23 | 上海市隧道工程轨道交通设计研究院 | Built-in combined waterproof connector with elastic filling body and application method thereof |
| CN111322094A (en) * | 2020-04-03 | 2020-06-23 | 上海市隧道工程轨道交通设计研究院 | Built-in combined waterproof joint with inflatable air bag and application method thereof |
| CN113981842A (en) * | 2021-10-26 | 2022-01-28 | 中铁三局集团有限公司 | Construction method of multiple waterproof structures for assembly type culvert joint |
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Application publication date: 20140903 |