CN201606084U - Waterproof structure of shield-structured tunnel segment - Google Patents
Waterproof structure of shield-structured tunnel segment Download PDFInfo
- Publication number
- CN201606084U CN201606084U CN2009200862629U CN200920086262U CN201606084U CN 201606084 U CN201606084 U CN 201606084U CN 2009200862629 U CN2009200862629 U CN 2009200862629U CN 200920086262 U CN200920086262 U CN 200920086262U CN 201606084 U CN201606084 U CN 201606084U
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- waterproof
- groove
- shield tunnel
- joint face
- jurisdiction
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Abstract
The utility model provides a waterproof structure of a shield-structured tunnel segment, which is characterized in that: at least two waterproof sealing pads are arranged at the seam surface between prefabricated shield-structured tunnel lining segments, one sealing pad is near the side of the upstream face, and the other sealing pad is near the side of the downstream face; and the at least two waterproof sealing pads are respectively arranged in sealing pad grooves on the seam surface of the segments. Compared with the traditional method that only one waterproof sealing pad is arranged at the outer side, the above structure realizes dual waterproof functions under the condition of low increased cost, thereby effectively improving the waterproofing capability of the seam of the shield-structured tunnel lining segments.
Description
Technical field
The utility model relates to the tunnel water proofing structure, relates in particular to a kind of duct pieces of shield tunnel waterproof construction, is applicable to shield tunnel lining segment seam crossing waterproof.
Background technology
Because shield tunnel adopts prefbricated tunnel lining, has a large amount of seams between lining segment, waterproof effect therefore how to guarantee structure is the normal key issue of using of shield tunnel.In shield tunnel seam waterproof in the past, adopt in close one waterproof sealing gasket of contact surface arranged outside of lining segment more, and carry out the practice of filleting in the inboard, section of jurisdiction.Because inboard filleting can only play the effect of drainage, can not resist hydraulic pressure, therefore in the time may occurring phenomenons such as sealing mat groove concrete localized delamination, the sticking obedient knuckle place of poor quality, the gasket ring frame of sealing mat be irregular in the construction, all can cause construction back seam localized seepage to occur, especially when the tunnel is in that transmission coefficient is big, hydraulic pressure higher following time of formation condition, percolating water significantly increases the influence of tunnel operation security.
The utility model content
The purpose of this utility model is in order to solve the weak point that above-mentioned prefbricated tunnel lining only adopts one deck waterproof sealing gasket waterproof, a kind of duct pieces of shield tunnel waterproof construction to be provided, make it can reduce tunnel percolating water probability, strengthening the waterproof ability of shield tunnel.
For achieving the above object, the utility model adopts following technical scheme: a kind of duct pieces of shield tunnel waterproof construction, it is characterized in that, joint face between the prefabricated lining segment of shield tunnel is provided with twice waterproof sealing gasket at least, wherein one sealing mat position is near the upstream face side, another road is near the back side side, and above-mentioned sealing mat is installed in the sealing mat groove of being located on the segment joint face.
In such scheme, the waterproof sealing gasket that is arranged at ring joint face place between the prefabricated lining segment of shield tunnel is arranged along segment joint face hoop; The waterproof sealing gasket that is arranged at longitudinal seam face place between the prefabricated lining segment of shield tunnel is vertically arranged along the segment joint face.
In such scheme, on each joint face of adjacent two section of jurisdiction correspondences, the sealing mat groove is set all.
In such scheme, on each joint face of adjacent two section of jurisdiction correspondences, be provided with the twice groove, and the position of twice groove places the contact surface both sides respectively, the surface, section of jurisdiction between groove is higher than surface, section of jurisdiction, the groove outside.
In such scheme, described upstream face side waterproof sealing gasket adopts the compound elastic sealing gasket of ethylene propylene diene rubber or Ethylene Propylene Terpolymer and hydro-expansive rubber material; The back side side adopts the sealing mat of meeting the inflatable type rubber of water material.
The utility model is set up waterproof sealing gasket by taking the method for multi-way prevention one in back side side (inboard), can effectively reduce tunnel percolating water probability.During the utility model work, upstream face side (outside) waterproof sealing gasket realizes water-proof function by the higher contact stress that the sealing mat compression produces; Back side side (inboard) waterproof sealing gasket is lower owing to its initial contact stress, but behind underground water breakthrough the first line of defence, the second road sealing mat water-swellable, contact stress increases, and realizes the second road water-proof function.Outside two seals pad groove must be reserved when lining segment is prefabricated in the utility model, waterproof sealing gasket is mounted in the groove before pipe sheet assembling again.
The advantage of this utility model is as follows: 1. inboard the employing met the water expandable rubber, and cost is lower, can increase at cost and improve shield tunnel waterproof reliability under the little situation; 2. twice water resistance gasket groove is separately positioned on the inside and outside both sides of seam, can avoid the eccentric excessive adverse effect to structure stress of section of jurisdiction contact surface.
The utility model is applicable to the seam waterproof of precast lining, is specially adapted to the stratum water permeability is strong, water pressure is big tunnel or the tunnel high to waterproof requirement.
The utility model feature and other correlated characteristics are described in further details by embodiment below in conjunction with accompanying drawing, so that colleague technician's understanding.
Description of drawings
Fig. 1 is the adjacent two section of jurisdiction sectional schematic diagrams of prior art;
Fig. 2 is the adjacent two section of jurisdiction scheme of installations of present embodiment;
Fig. 3 is a sectional schematic diagram behind adjacent two pipe sheet assemblings of present embodiment;
Fig. 4 is present embodiment section of jurisdiction ring joint face schematic diagram;
Fig. 5 is that the A of Fig. 4 is to view.
In Fig. 1～5, label 1～7 is represented respectively: lining segment upstream face 1, lining segment back side 2, outside waterproof sealing gasket 3, outside sealing mat groove 4, section of jurisdiction contact surface 5, inner seal pad groove 6, inboard waterproof sealing gasket 7, section of jurisdiction 8, section of jurisdiction 9.
The specific embodiment
Embodiment: present embodiment relates generally to a kind of duct pieces of shield tunnel waterproof construction, this structure is at adjacent two prefabricated lining segments 8, outside sealing mat groove 4 and inner seal pad groove 6 are reserved in 9 hoop and vertical assembly unit joint face both sides, outside sealing mat groove 4 on the hoop assembly unit joint face and inner seal pad groove 6 are arranged along segment joint face hoop, vertically the outside sealing mat groove 4 on the assembly unit joint face and inner seal pad groove 6 are vertically arranged along the segment joint face, the surface, section of jurisdiction that outside sealing mat groove 4 and inner seal pad groove are 6 is higher than surface, section of jurisdiction, the above-mentioned two grooves outside, to guarantee the contact of section of jurisdiction between two grooves of splicing back.Above-mentioned groove dimensions should be complementary with corresponding gasket structure section and size, and is generally definite through testing.
Before the pipe sheet assembling, glue card outside waterproof sealing gasket 3 outside in the side seal pad groove 4, its material is generally the composite of ethylene propylene diene rubber or Ethylene Propylene Terpolymer and hydro-expansive rubber; Sticking obedient inboard waterproof sealing gasket 7 in inner seal pad groove 6, its material are generally meets the inflatable type rubber of water.Behind the sticking card, the seam before the assembly unit as shown in Figure 2.Behind the pipe sheet assembling, as shown in Figure 3, waterproof sealing gasket forms inside and outside twice waterproof defence line through extruding mutually, realizes dual water-proof function.
Claims (4)
1. duct pieces of shield tunnel waterproof construction, it is characterized in that, joint face between the prefabricated lining segment of shield tunnel is provided with twice waterproof sealing gasket at least, wherein one sealing mat position is near the upstream face side, another road is near the back side side, and above-mentioned sealing mat is installed in the sealing mat groove of being located on the segment joint face.
2. a kind of duct pieces of shield tunnel waterproof construction according to claim 1 is characterized in that, the waterproof sealing gasket that is arranged at ring joint face place between the prefabricated lining segment of shield tunnel is arranged along segment joint face hoop; The waterproof sealing gasket that is arranged at longitudinal seam face place between the prefabricated lining segment of shield tunnel is vertically arranged along the segment joint face.
3. a kind of duct pieces of shield tunnel waterproof construction according to claim 1 is characterized in that, on each joint face of adjacent two section of jurisdiction correspondences the sealing mat groove is set all.
4. a kind of duct pieces of shield tunnel waterproof construction according to claim 1, it is characterized in that, be provided with the twice groove on each joint face of adjacent two section of jurisdiction correspondences, and the position of twice groove places the contact surface both sides respectively, the surface, section of jurisdiction between groove is higher than surface, section of jurisdiction, the groove outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200862629U CN201606084U (en) | 2009-06-09 | 2009-06-09 | Waterproof structure of shield-structured tunnel segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200862629U CN201606084U (en) | 2009-06-09 | 2009-06-09 | Waterproof structure of shield-structured tunnel segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606084U true CN201606084U (en) | 2010-10-13 |
Family
ID=42950790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200862629U Expired - Lifetime CN201606084U (en) | 2009-06-09 | 2009-06-09 | Waterproof structure of shield-structured tunnel segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606084U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778337A (en) * | 2012-07-18 | 2012-11-14 | 同济大学 | Waterproof ability testing system of three-directional loaded shield tunnel duct piece joint seam |
| CN102979535A (en) * | 2012-12-27 | 2013-03-20 | 西南交通大学 | Drain-type pipe piece for tunnel lining |
| CN103206230A (en) * | 2012-01-13 | 2013-07-17 | 上海市政工程设计研究总院（集团）有限公司 | Waterproof structure of shield tunnel segment |
| CN103742167A (en) * | 2013-12-30 | 2014-04-23 | 中铁第四勘察设计院集团有限公司 | Tunnel segment structure with difference waterproof capability |
| CN104088645A (en) * | 2014-06-25 | 2014-10-08 | 山东万广建设工程有限公司 | Combined pipe joint for shield tunneling machine |
| CN105181253A (en) * | 2015-09-23 | 2015-12-23 | 同济大学 | Segment test piece used for segment longitudinal seam anti-leakage performance test and manufacturing method thereof |
| CN108301843A (en) * | 2018-03-02 | 2018-07-20 | 北京交通大学 | Underwater shield tunnel shock resisting composite lining structure |
| CN109944274A (en) * | 2019-04-11 | 2019-06-28 | 西安工业大学 | A kind of subway open cut assembled tunnel structure and its assembly method |
-
2009
- 2009-06-09 CN CN2009200862629U patent/CN201606084U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206230A (en) * | 2012-01-13 | 2013-07-17 | 上海市政工程设计研究总院（集团）有限公司 | Waterproof structure of shield tunnel segment |
| CN102778337A (en) * | 2012-07-18 | 2012-11-14 | 同济大学 | Waterproof ability testing system of three-directional loaded shield tunnel duct piece joint seam |
| CN102979535A (en) * | 2012-12-27 | 2013-03-20 | 西南交通大学 | Drain-type pipe piece for tunnel lining |
| CN102979535B (en) * | 2012-12-27 | 2015-12-02 | 西南交通大学 | Draining type section of jurisdiction is used in a kind of tunnel lining |
| CN103742167A (en) * | 2013-12-30 | 2014-04-23 | 中铁第四勘察设计院集团有限公司 | Tunnel segment structure with difference waterproof capability |
| CN103742167B (en) * | 2013-12-30 | 2016-06-22 | 中铁第四勘察设计院集团有限公司 | Possesses the Structural Test of Tunnel Segments of difference waterproof ability |
| CN104088645A (en) * | 2014-06-25 | 2014-10-08 | 山东万广建设工程有限公司 | Combined pipe joint for shield tunneling machine |
| CN105181253A (en) * | 2015-09-23 | 2015-12-23 | 同济大学 | Segment test piece used for segment longitudinal seam anti-leakage performance test and manufacturing method thereof |
| CN108301843A (en) * | 2018-03-02 | 2018-07-20 | 北京交通大学 | Underwater shield tunnel shock resisting composite lining structure |
| CN109944274A (en) * | 2019-04-11 | 2019-06-28 | 西安工业大学 | A kind of subway open cut assembled tunnel structure and its assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |
|
| CX01 | Expiry of patent term |