CN204899937U - Seam mosaic structure of underground shield tunnel lining segment - Google Patents
Seam mosaic structure of underground shield tunnel lining segment Download PDFInfo
- Publication number
- CN204899937U CN204899937U CN201520603759.9U CN201520603759U CN204899937U CN 204899937 U CN204899937 U CN 204899937U CN 201520603759 U CN201520603759 U CN 201520603759U CN 204899937 U CN204899937 U CN 204899937U
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- seam
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- steel structure
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Abstract
The utility model discloses a seam mosaic structure of underground shield tunnel lining segment, steel construct the connecting piece and inlay between the seam of two lining segments, and the contact surface that the steel constructs connecting piece and lining segment is equipped with waterproof part, and prestressing tendons passes two lining segments with steel structure connecting piece and through anchor formation overall structure simultaneously. The utility model discloses constructing the connecting piece with a steel and fixing the seam crossing two concrete lining sections of jurisdiction, the rigidity that has improved the section of jurisdiction seam crossing is with stable to can carry out three waterproof measures (water bar, waterproof liner, water proof coating ), apply local prestressing force through prestressing tendons simultaneously and be whole component with cement pipe piece and the concatenation of steel structure connecting piece. Compared with the prior art, the connecting piece is constructed through increasing the steel to this method, effectively improves the rigidity of section of jurisdiction seam crossing to jog through the contact surface designs, has effectively improved the waterproof liner size of section of jurisdiction seam crossing, has reference value to the stability of shield tunnel lining cutting structure and the scheduling problem that seeps water.
Description
Technical field
The utility model relates to geotechnical engineering and underground tunnel project field, is specifically related to a kind of seam splicing construction of Tunnel Boring tunnel lining segment.
Background technology
Along with the development of modern city building, building and traffic communal facility, the land resources day in city is becoming tight, in order to save incity, city land resources, alleviate the problems such as public transport in city is crowded, the underground space expanding city is imperative, builds the underground transportation facilities tool such as subway, Urban Underground highway tunnel and is of great significance.
The construction method of underground tunnel project has many kinds, as cut and cover method, blasting procedure, shield method etc.Wherein, cut and cover method causes severe jamming to the work of resident and life in the construction of city tunnel, affects the normal use of ground engineering; Blasting procedure is common in the excavation in solid rock tunnel, and engineering in general is positioned at comparatively remote rock mountain area etc.; And shield method is as a kind of construction method of safe, reliable, quick, environmental protection, comparatively applicable for subterranean tunnel buried depth construction of tunnel that is comparatively large, periphery geological conditions relative complex, particularly the excavation of Urban underground Tunnel engineering, the excavation etc. of river-crossing tunnel have obviously advantage.
Underground tunnel project due to engineering geological conditions relative complex, the phenomenon such as surrouding rock deformation often can occur, cave in, therefore tunnel-liner support after shield tunneling and grouting behind shaft or drift lining tool are of great significance.Assembling method mainly section of jurisdiction through seam assembling and the staggered joint erection two kinds of common tunnel-liner support section of jurisdiction, these two kinds of liner supporting structures have the features such as speed of application is fast, construction cost is low, but also often there is the diseases such as structural percolating water, structure partial crack and damage, and mainly occur in circumferential weld and the longitudinal joint position of section of jurisdiction splicing.Therefore, carrying out waterproof to seam crossings such as section of jurisdiction circumferential weld, longitudinal joints and reinforcing design is significant, is also the important guarantee of underground tunnel project stability and safety.
Summary of the invention
Goal of the invention: the purpose of this utility model is for the deficiencies in the prior art, a kind of seam splicing construction of Tunnel Boring tunnel lining segment being provided, often there is the problems such as infiltration and the engineering disease such as local cracks and damage for solving underground tunnel project lining segment seam crossing.
Technical scheme: the utility model provides a kind of seam splicing construction of Tunnel Boring tunnel lining segment, comprise two lining segments, steel structure connector, waterproof part and presstressed reinforcing steel, described steel structure connector is embedded between the seam of two lining segments, and the contact surface of steel structure connector and lining segment is provided with waterproof part, utilize presstressed reinforcing steel to form overall structure by anchoring through two lining segments and steel structure connector simultaneously.
Further, the seam crossing of described lining segment has recess, and the both sides, stage casing of described steel structure connector have suitable protuberance, by the concavo-convex combination of lining segment and steel structure connector, the rigidity of lining segment seam crossing and stability are improved, not fragile.
Further, described waterproof part comprises water bar and water resistance gasket, and described water bar is arranged on the position of seam outside tunnel, and described water resistance gasket is arranged on the whole concavo-convex position of seam, and make water resistance gasket size become large, waterproof effect is better.
Further, described steel structure connector and two lining segments are filled with cement mortar at the seam crossing inside tunnel, make segment joint closely knit, and are coated with water-repellent paint, carry out the 3rd road waterproof measure.
Beneficial effect: a steel structure connector is fixed on the seam crossing of two concrete lining pipe pieces by the utility model, improve rigidity and the stability at segment joint place, and three road waterproof measures (water bar, water resistance gasket, water-repellent paint) can be carried out, wherein water resistance gasket has carried out larger by the jog of lining segment contact surface, improves the water resistance at segment joint place; Apply local prestressing force by presstressed reinforcing steel simultaneously and concrete pipe sheet and steel structure connector are spliced into integrated member.Compared with prior art, the method, by increasing steel structure connector, is effectively improved the rigidity at segment joint place, and is designed by the jog of contact surface, effectively improve the water resistance gasket size at segment joint place, to the problem such as stability and infiltration of shield tunnel lining structure, there is reference value.
Accompanying drawing explanation
Fig. 1 is the utility model concrete lining pipe piece Longitudinal joint linking and waterproof method schematic diagram;
Fig. 2 is the splicing of the utility model concrete lining pipe piece circumferential weld and waterproof method schematic diagram.
Detailed description of the invention
Below technical solutions of the utility model are described in detail, but protection domain of the present utility model is not limited to described embodiment.
embodiment:a kind of seam splicing construction of Tunnel Boring tunnel lining segment, a steel structure connector 2 is embedded in the seam crossing of two concrete lining pipe pieces 1A, 1B, concrete, the seam edge of lining segment 1A, 1B has recess, the both sides, stage casing of steel structure connector 2 have suitable protuberance, form mosaic structure by male-female engagement.Simultaneously, steel structure connector 2 with the both sides contact surface of concrete lining pipe piece 1A, 1B settle water bar 3 and water resistance gasket 4, water bar 3 is arranged on two seam crossings outside tunnel, and water resistance gasket 4 arranges and is wrapped in concavo-convex position, the both sides of inlaying combination seam crossing.It is overall by two lining segments 1A, 1B and the anchoring of steel structure connector 2 that presstressed reinforcing steel 5 subsequently by passing two lining segments 1A, 1B and steel structure connector 2 simultaneously applies local prestressing force.Finally carrying out cement mortar 7 joint filling near joined inside place, tunnel and smearing water-repellent paint 8.
In the present embodiment, longitudinal joint is consistent with the implementation method of circumferential weld, and as shown in Figure 1, 2, concrete implementation step is as follows:
1. the seam crossing at concrete lining pipe piece 1A, 1B edge is made as spill in advance, i.e. the kernel of section position indent of edge, is used for inlaying steel structure connector 2; Protruding when stage casing, steel structure connector 2 cross section is prefabricated, be used for being embedded in the seam sections place of two concrete lining pipe pieces 1A, 1B.
2. the extruding water bar 3 that the rubber of water-swellable makes is pasted onto the position both sides of steel structure connector 2 outside tunnel; Acrylonitrile-butadiene rubber water resistance gasket 4 is pasted onto the both sides, position of steel structure connector 2 stage casing projection, boss is all wrapped up.
3. progressively process is thickeied near the stitching portion of tunnel inside line to concrete lining pipe piece 1A, 1B when prefabricated, reserved prestressing force hole, reserve presstressed reinforcing steel hole at the corresponding position of steel structure connector 2 simultaneously, two concrete lining pipe pieces 1A, 1B and the assembled rear presstressed reinforcing steel 5 to passing hole of steel structure connector 2 are applied local prestressing force, end anchorage is carried out with prestressed anchor bolt 6A, 6B after Shi Hanzhang, concrete lining pipe piece 1A, 1B are closely connected with steel structure connector 2, form integrated member.
4. at close joined inside place, tunnel filling concrete mortar 7, cement mortar 7 selects the cement mixing with precast concrete lining segment 1A, 1B same model; And smear water-repellent paint 8 at the seam crossing of having filled cement mortar 7, carry out last one deck waterproof measure of lining segment 1A, 1B seam crossing.
Claims (4)
1. the seam splicing construction of a Tunnel Boring tunnel lining segment, it is characterized in that: comprise two lining segments, steel structure connector, waterproof part and presstressed reinforcing steel, described steel structure connector is embedded between the seam of two lining segments, and the contact surface of steel structure connector and lining segment is provided with waterproof part, described presstressed reinforcing steel forms overall structure by anchoring through two lining segments and steel structure connector simultaneously.
2. the seam splicing construction of Tunnel Boring tunnel lining segment according to claim 1, is characterized in that: the seam crossing of described lining segment has recess, and the both sides, stage casing of described steel structure connector have suitable protuberance.
3. the seam splicing construction of Tunnel Boring tunnel lining segment according to claim 2, it is characterized in that: described waterproof part comprises water bar and water resistance gasket, described water bar is arranged on the position of seam outside tunnel, and described water resistance gasket is arranged on the whole concavo-convex position of seam.
4. the seam splicing construction of Tunnel Boring tunnel lining segment according to claim 1, is characterized in that: described steel structure connector and two lining segments are filled with cement mortar at the seam crossing inside tunnel, and are coated with water-repellent paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603759.9U CN204899937U (en) | 2015-08-12 | 2015-08-12 | Seam mosaic structure of underground shield tunnel lining segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603759.9U CN204899937U (en) | 2015-08-12 | 2015-08-12 | Seam mosaic structure of underground shield tunnel lining segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899937U true CN204899937U (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520603759.9U Expired - Fee Related CN204899937U (en) | 2015-08-12 | 2015-08-12 | Seam mosaic structure of underground shield tunnel lining segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041337A (en) * | 2015-08-12 | 2015-11-11 | 河海大学 | Seam splicing structure of underground shield tunnel lining segments and waterproof method |
| CN107916943A (en) * | 2017-12-12 | 2018-04-17 | 四川迈铁龙科技有限公司 | External member that shield segment assembling constructs and tenon formula is located by connecting |
-
2015
- 2015-08-12 CN CN201520603759.9U patent/CN204899937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041337A (en) * | 2015-08-12 | 2015-11-11 | 河海大学 | Seam splicing structure of underground shield tunnel lining segments and waterproof method |
| CN107916943A (en) * | 2017-12-12 | 2018-04-17 | 四川迈铁龙科技有限公司 | External member that shield segment assembling constructs and tenon formula is located by connecting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |