CN206487496U - A kind of shield tunnel knocker anti-seep water structure - Google Patents
A kind of shield tunnel knocker anti-seep water structure Download PDFInfo
- Publication number
- CN206487496U CN206487496U CN201720167492.2U CN201720167492U CN206487496U CN 206487496 U CN206487496 U CN 206487496U CN 201720167492 U CN201720167492 U CN 201720167492U CN 206487496 U CN206487496 U CN 206487496U
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- plate
- annular
- portal
- ring
- steel jacket
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Abstract
The utility model provides a kind of shield tunnel knocker anti-seep water structure, including portal ring flat-plate, it is characterised in that：The circle elastic waterstop plate for also including being welded on portal ring flat-plate inner surface widens steel jacket box, the second ring-shaped flexible seal member with the first annular flexible seal member on the outside of setting portal ring flat-plate, annular；The annular widens the outer ledge that steel jacket box is arranged on portal ring flat-plate, and first annular flexible seal member is arranged on portal ring flat-plate and widens steel jacket box junction with annular, and the second ring-shaped flexible seal member is arranged on the outer ledge that annular widens steel jacket box；In portal ring flat-plate and widen the upper of steel jacket box and be reserved with the injected hole that is connected with extraneous Grouting Pipe, the sealing steel spring plate is welded on the injected hole outside left of portal ring flat-plate.The utility model structure, installation are convenient, and antiseep effect is obvious, about construction cost, improve shield launching and enter hole security.
Description
Technical field
The utility model is related to shield machine and originates portal ring anti-seep water technology, specifically a kind of improved shield tunnel
The multiple anti-seep water structure of road portal ring.
Background technology
During city track traffic engineering civil engineering, shield method is high and safe and efficient with its mechanical up-to-dateness
It is famous, but the engineering method appear in shield machine, enter that hole, i.e. construction enterprises generally say originate and receive the stage, occur accident probability
Height, social effectiveness is big.Particularly water rich strata using freezing process as shield end well reinforcing mode when, shield launching
Period accident rate is higher, and how percolating water occurs for portal ring during effectively preventing shield launching, as subway work enterprise
Industry is in the urgent need to the problem captured.
The content of the invention
The utility model enters hole according to existing shield tunnel shield machine, and there is provided a kind of ground for the deficiency of portal ring waterproof construction
Iron station portal ring anti-seep water structure, the utility model is simple in construction, installation is convenient, and antiseep effect is obvious, part
Component is reusable, saves construction cost, improves shield launching and enters hole security.
The technical scheme that the utility model is provided：A kind of shield tunnel knocker anti-seep water structure, including it is pre-buried
In the cylindric portal ring flat-plate at shield tunnel portal in agent structure side wall, it is characterised in that：The anti-seep water structure bag
Include the circle elastic waterstop plate being welded on portal ring flat-plate inner surface and the first annular flexible sealing on the outside of portal ring flat-plate is set
Component, annular widen steel jacket box, the second ring-shaped flexible seal member, and the elastic waterstop plate is in towards the direction that shield machine is travelled
It is skewed；The annular widens the outer ledge that steel jacket box is arranged on portal ring flat-plate, and first annular flexible seal member is arranged on
Portal ring flat-plate widens steel jacket box junction with annular, and the second ring-shaped flexible seal member is arranged on the outside that annular widens steel jacket box
Edge, first, second ring-shaped flexible seal member is constituted by ring-shaped rubber cord and polylith cord pressing plate；In portal ring
Plate and widen the upper of steel jacket box and be reserved with the injected hole connected with extraneous Grouting Pipe, the sealing steel spring plate is welded on portal
The injected hole outside left of ring flat-plate.
The utility model preferably technical scheme：The annular, which widens steel jacket box, to be spliced by multiple arcs casing,
The hollow arc box body knot that each arc casing is made up of outer arc panel, two pieces of ring side panels and two pieces of cross side panels
Structure, connecting rib is provided with the middle of two pieces of annular side panels, is offered on two annular side panels of each arc casing multiple
Bolt hole, the arc casing for widening circular arc portion immediately below steel jacket box correspondence tunnel shielding portal in annular is additionally provided with inner arc panel.
The utility model preferably technical scheme：The elastic waterstop plate is steel spring plate or shield ventral brush.
The utility model preferably technical scheme：The polylith cord pressing plate is distributed in outside ring-shaped rubber cord in a ring,
Every piece of cord pressing plate is to be hinged to form with movable pressing board by fixation clip, the ring-shaped rubber of the first annular flexible seal member
Cord is fixed on close to the part at outer shroud edge behind the outward flange of portal ring flat-plate, and the fixation clip compression for passing through cord pressing plate,
It is fixedly connected again by the first connecting bolt with widening steel jacket box medial surface；The annular rubber of second ring-shaped flexible seal member
Rubberized cord is fixed on the lateral surface for widening steel jacket box close to the part at outer shroud edge by the second connecting bolt, and passes through cord
The fixation clip of pressing plate is compressed.
The utility model preferably technical scheme：The correspondence each of which injected hole in portal ring flat-plate outer shroud agent structure side wall
Position is embedded with Grouting Pipe, and the built-in slip casting pipe has four, and 2 points, 4 points, 8 points and 10 points of correspondence on portal ring is set respectively
Position, the inner of every built-in slip casting pipe is connected with the injected hole sealing on portal ring flat-plate, and outer end is stretched out outside agent structure side wall,
And it is provided with built-in slip casting pipe ball valve in outer end.
The utility model preferably technical scheme：Grouting Pipe is connected with the upper each injected hole for widening steel jacket box, and
Grouting Pipe ball valve is provided with Grouting Pipe.
The utility model preferably technical scheme：It is described be opened in widen injected hole on steel jacket box and be arranged on annular widen steel
Casing is corresponded on the outer arc panel of the arc casing of the position of 2 points, 4 points, 8 points and 10 points of tunnel shielding portal respectively.
The beneficial effects of the utility model：
(1) welding sealing steel spring plate in the external grouting pipe that the utility model is embedded with portal ring flat-plate, portal ring,
Steel spring plate is welded on the outside of the portal ring flat-plate slip casting mouth of pipe, with injecting loss circulation material first of sealing knot of formation in grouting pipeline
Structure；The spring steel plate for sealing water can be adjusted flexibly according to hydrogeological situation, and the larger stratum of percolating water risk can
Shield tail brush configuration is replaced by, construction cost is saved；
(2) it is described to be widened by shield tunnel knocker after steel jacket box widens original portal ring depth headroom, in portal
Ring flat-plate widens steel jacket box junction provided with first of watertight rubber heavy curtain and pressing plate formation second waterproof construction with portal ring；
(3) 2 points on steel jacket box outer arc panel, 4 points, 8 points, 10 points position grouting pipeline is respectively welded, widen in portal ring
Second watertight rubber heavy curtain and pressing plate are installed outside steel jacket box, according to hydrogeological situation, inject thick by Grouting Pipe
The material such as slurry, shield tail grease, polyurethane, coordinates second watertight rubber heavy curtain the 3rd road water sealing structure of formation.
The utility model structure, technique are simple, and required component is easy to process, and installation is convenient, and antiseep effect is obvious,
Partial component is reusable, saves construction cost, improves shield launching and enters hole security.
Brief description of the drawings
Fig. 1 is positive structure schematic of the present utility model；
Fig. 2 is Fig. 1 AA profiles；
Fig. 3 is Fig. 1 ring profile；
Fig. 4 is the structural representation of arc casing in the utility model；
Fig. 5 is provided with the arc casing schematic cross-section of inner arc panel；
Fig. 6 is the arc casing schematic cross-section for being not provided with inner arc panel；
Fig. 7 is the arc sleeve box structure schematic diagram provided with Grouting Pipe in the utility model；
Fig. 8 is steel jacket box scheme of installation of the present utility model；
In figure：1-diaphram wall, 2-agent structure side wall, 3-built-in slip casting pipe, 3-1-built-in slip casting pipe ball valve,
4-first annular flexible seal member, 4-1-ring-shaped rubber cord, 4-2-cord pressing plate, the 5-the second ring-shaped flexible seal structure
Part, 6-steel jacket box, 6-1-arc casing, 6-11-outer arc panel, 6-12-ring side panel, 6-13-cross side panel,
6-14-connecting rib, 6-15-inner arc panel, 6-16-bolt hole, 7-injected hole, 7-1-Grouting Pipe, 7-2-Grouting Pipe
Ball valve, 8-elastic waterstop plate, 9-portal ring flat-plate, 10-shield machine, the 11-the first connecting bolt, the 12-the second connecting bolt.
Embodiment
The utility model is further described below in conjunction with accompanying drawing.A kind of shield as shown in Figure 1, Figure 2 and Figure 3
Tunnel knocker anti-seep water structure, including the cylindric portal ring being embedded at shield tunnel portal in agent structure side wall 2
Plate 9, a cylindric portal ring flat-plate 9 wherein circumferential lateral edge and be embedded in diaphram wall 1 take root in into reinforcement welding, it is another
Laterally turn up to form the annular panel that a circle is close to agent structure side wall 2, it is characterised in that：The anti-seep water structure includes weldering
The circle elastic waterstop plate 8 and the first annular flexible sealing structure in the outside of setting portal ring flat-plate 9 being connected on the inner surface of portal ring flat-plate 9
Part 4, annular widen steel jacket box 6, the second ring-shaped flexible seal member 5, the side that the elastic waterstop plate 8 is travelled towards shield machine 10
To oblique, elastic waterstop plate 8 can be steel spring plate or shield machine ventral brush, and steel spring plate and shield machine ventral brush are existing
Part, steel spring plate be specifically be made up of the inclined steel plate of one piece of horizontal steel plate and length 5-8mm, the water of elastic waterstop plate 8
Plain plate is welded with cylindric portal ring flat-plate 9, and the angle between inclined steel plate and horizontal steel plate is 120-135 °, shield machine ventral brush
It is made up of two pieces of steel spring plates and the steel wire hairbrush being embedded between two steel spring plates, shield machine elastic waterstop plate after
8 can rebound automatically, and the formation sealing between shield machine outer wall.The annular widens steel jacket box 6 installed in portal ring flat-plate 9
Outer ledge, first annular flexible seal member 4 is arranged on portal ring flat-plate 9 and widens the junction of steel jacket box 6, the second annular with annular
Flexible seal member 5 is arranged on the outer ledge that annular widens steel jacket box 6.
Annular as described in Figure 4, which widens steel jacket box 6, to be spliced by multiple arcs casing 6-1, each arc casing 6-1
The hollow arc box body knot being made up of outer arc panel 6-11, two pieces of ring side panel 6-12 and two pieces of cross side panel 6-13
Structure, ring side panel 6-12 is also arc, connecting rib 6-14 is provided with the middle of two pieces of annular side panel 6-12, in each arc
Multiple bolt hole 6-16 are offered on shape casing 6-1 two annular side panel 6-12, as shown in figures 1 and 3, steel are widened in annular
Three arc casing 6-1 intrados of circular arc portion are additionally provided with inner arc panel 6-15 immediately below the correspondence tunnel shielding portal of casing 6, are provided with
The arc casing 6-1 of inner arc panel is totally-enclosed shape casing, and its sectional view is as shown in Figure 5；The arc casing inner arc at other positions
Face does not set inner arc panel 6-15, is that intrados is open, other five face closures casing for the arc casing 6-1 provided with inner arc panel
Structure, its sectional view is as shown in Figure 6.
As shown in Fig. 2 in portal ring flat-plate 9 and widening the upper of steel jacket box 6 and being reserved with the slip casting that is connected with extraneous Grouting Pipe
Hole 7, the sealing steel spring plate 8 is welded on the outside left of injected hole 7 of portal ring flat-plate 9；Widening upper each note of steel jacket box 6
Grouting Pipe 7-1 is connected with slurry hole 7, and provided with Grouting Pipe ball valve 7-2 on Grouting Pipe 7-1；In the outer shroud body junction of portal ring flat-plate 9
The position of correspondence each of which injected hole 7 is embedded with Grouting Pipe in structure side wall 2, and the built-in slip casting pipe 3 has four, portal is set respectively
The position of 2 points, 4 points, 8 points and 10 points of correspondence on ring 1, the inner and the injected hole 7 on portal ring flat-plate 9 of every built-in slip casting pipe 3
Sealing connection, outer end is stretched out outside agent structure side wall 2, and is provided with built-in slip casting pipe ball valve 3-1 in outer end.It is easy to shield launching rank
Section injects loss circulation material to portal ring flat-plate internal pore, and the link position of the built-in slip casting pipe 2 and portal ring flat-plate 1-1 is located at portal
Ring flat-plate 1 is close to the side 50mm of diaphram wall 6~100mm.Such as Fig. 1 and Fig. 3, described be opened in is widened injected hole 7 on steel jacket box 6 and set
Put annular widen steel jacket box 6 respectively correspond to 2 points, 4 points, 8 points and 10 points of tunnel shielding portal position arc casing 6-1 outer arc
On panel 6-11.Slip casting length of tube staggers with the slip casting pipe joint being embedded on portal ring flat-plate in agent structure side wall on steel jacket box
Set, it is to avoid slip casting operation is interfered.Connect for convenience, the built-in slip casting pipe 3 passes through screw shell and portal ring flat-plate 9
Connection, offers injected hole 7, the screw shell is welded at the injected hole 7 of portal ring flat-plate 9 in the plate face of portal ring flat-plate 9,
And connected with injected hole 7, the inner of the built-in slip casting pipe 3 is provided with the external screw thread matched with screw shell, and and thread bush
Cylinder threaded connection.Described widen on casing 6 also can be by screw shell company between Grouting Pipe 7-1 and outer arc panel 6-11
Connect, specifically can be identical with the connected mode of built-in slip casting pipe 3.
As shown in Figure 1, Figure 2 and Figure 3, first, second ring-shaped flexible seal member 4,5 is by ring-shaped rubber cord 4-
1 and polylith cord pressing plate 4-2 is constituted, and bolt hole is reserved with ring-shaped rubber cord 4-1 and cord pressing plate 4-2；It is described many
Block cord pressing plate 4-2 is distributed in outside ring-shaped rubber cord 4-1 in a ring, and every piece of cord pressing plate 4-2 is by fixation clip and activity
Pressing plate, which is hinged, to be formed, and the ring-shaped rubber cord 4-1 of the first annular flexible seal member 4 is fixed close to the part at outer shroud edge
In the outward flange of portal ring flat-plate 9, and after being compressed by cord pressing plate 4-2 fixation clip, then by the first connecting bolt 11 with
The inner side ring side panel 6-12 for widening each arc casing 6-1 of steel jacket box 6 is fixedly connected；The second ring-shaped flexible seal structure
The ring-shaped rubber cord 4-1 of part 5 is fixed on close to the part at outer shroud edge by the second connecting bolt 12 widens the every of steel jacket box 6
On individual arc casing 6-1 outside ring side panel 6-12, and compressed by cord pressing plate 4-2 fixation clip.Described first
Road shield tunnel portal rubber curtain curtain and pressing plate use conventional mounting mode, but bolt and nut are fixed on shield tunnel portal
Ring is widened inside steel jacket box, forms overall.First, second ring-shaped flexible seal member 4,5 after installing is in shield machine 10
By when, the square inclination that can be travelled towards shield machine 10 and contacts to form sealing and anti-leakage water knot with the outer surface of shield machine
Structure.
Specific installation process of the present utility model：Before shield machine does not reach portal, install carry pre-buried slip casting first
The portal ring flat-plate 9 of pipe 3, installs one in the inner ring surface of portal ring flat-plate 9 and encloses sealing steel spring plate 8, sealing steel spring plate 8 and portal ring flat-plate
9 welding, are tilted after welding towards the direction that shield machine is travelled, and then install first annular soft successively in the outside of portal ring flat-plate 9
Property containment member 4, portal ring widen steel jacket box 6, the second ring-shaped flexible seal member 5, lay one in the outside of portal ring flat-plate 9 first
The first connecting bolt 11 is enclosed, then by the ring-shaped rubber cord 4-1 of first annular flexible seal member 4 by being reserved with bolt hole
On the first connecting bolt 11, then a circle cord pressing plate 4-2 and arc casing 6-1 is installed successively, arc casing 6-1's is interior
Side ring compresses the cord pressing plate 4-2 of first annular flexible seal member 4 to side panel 6-12, and is fixed by nut, Zhi Hou
The second ring-shaped flexible seal member 5 is installed by the second connecting bolt 12 on ring side panel 6-12 on the outside of arc casing 6-2
Ring-shaped rubber cord and cord pressing plate, just can start into hole after installing.When shield machine 10 enters hole, shield machine 10 passes through
During first, second ring-shaped flexible seal member 4,5, first, second ring-shaped flexible seal member 4,5 is travelled towards shield machine 10
It is square to tilt, and contact to form sealing and anti-leakage water-bound with the outer surface of shield machine, when by sealing elastic plate 8, shield machine
Anti-leakage structure is also formed between 10 outer walls and sealing elastic plate 8, while by widening the Grouting Pipe 7-1 on steel jacket box 6, portal
The materials such as the injection anti-seep water thickness of built-in slip casting pipe 3 slurry, polyurethane or shield tail grease on ring flat-plate, realize multiple anti-seep water
Purpose.
The utility model technological principle is simple, and required component is easy to process, and installation is convenient, and antiseep effect is obvious,
Partial component is reusable, saves construction cost, improves shield launching and enters hole security.
Claims (7)
1. a kind of shield tunnel knocker anti-seep water structure, including it is embedded in agent structure side wall (2) at shield tunnel portal
Interior cylindric portal ring flat-plate (9), it is characterised in that：The anti-seep water structure includes being welded on portal ring flat-plate (9) inner surface
On a circle elastic waterstop plate (8) and first annular flexible seal member (4), annular on the outside of setting portal ring flat-plate (9) widen
Steel jacket box (6), the second ring-shaped flexible seal member (5), the elastic waterstop plate (8) is in towards the direction that shield machine (10) is travelled
It is skewed；The annular widens the outer ledge that steel jacket box (6) is arranged on portal ring flat-plate (9), first annular flexible seal member
(4) it is arranged on portal ring flat-plate (9) and widens steel jacket box (6) junction with annular, the second ring-shaped flexible seal member (5) is arranged on ring
Shape widens the outer ledge of steel jacket box (6), and first, second ring-shaped flexible seal member (4,5) is by ring-shaped rubber cord
(4-1) and polylith cord pressing plate (4-2) are constituted；Noted in portal ring flat-plate (9) and upper be reserved with for widening steel jacket box (6) with extraneous
The injected hole (7) of pipe connection is starched, the sealing steel spring plate (8) is welded on injected hole (7) outside left of portal ring flat-plate (9).
2. a kind of shield tunnel knocker anti-seep water structure according to claim 1, it is characterised in that：The annular adds
Wide steel jacket box (6) is spliced by multiple arcs casing (6-1), each arc casing (6-1) be by outer arc panel (6-11),
Two pieces of ring side panels (6-12) and the hollow arc box body structure of two pieces of cross side panel (6-13) compositions, in two pieces of annular sides
Connecting rib (6-14) is provided with the middle of panel (6-12), is opened on two annular side panels (6-12) of each arc casing (6-1)
Provided with multiple bolts hole (6-16), the arc casing of circular arc portion immediately below steel jacket box (6) correspondence tunnel shielding portal is widened in annular
(6-1) is additionally provided with inner arc panel (6-15).
3. a kind of shield tunnel knocker anti-seep water structure according to claim 1 or 2, it is characterised in that：The bullet
Property seal plate (8) be steel spring plate or shield ventral brush.
4. a kind of shield tunnel knocker anti-seep water structure according to claim 1 or 2, it is characterised in that：It is described many
Block cord pressing plate (4-2) is distributed in ring-shaped rubber cord (4-1) outside in a ring, and every piece of cord pressing plate (4-2) is by fixation clip
It is hinged and forms with movable pressing board, the ring-shaped rubber cord (4-1) of the first annular flexible seal member (4) is close to outer shroud edge
Part be fixed on the outward flanges of portal ring flat-plate (9), and pass through after the fixation clip of cord pressing plate (4-2) compresses, then pass through the
One connecting bolt (11) is fixedly connected with widening steel jacket box (6) medial surface；The annular of second ring-shaped flexible seal member (5)
Rubber cord (4-1) is fixed on the outside for widening steel jacket box (6) by the second connecting bolt (12) close to the part at outer shroud edge
On face, and compressed by the fixation clip of cord pressing plate (4-2).
5. a kind of shield tunnel knocker anti-seep water structure according to claim 1 or 2, it is characterised in that：In portal
Correspondence each of which injected hole (7) position is embedded with Grouting Pipe, the pre-buried slip casting in ring flat-plate (9) outer shroud agent structure side wall (2)
Pipe (3) has four, and the position of 2 points, 4 points, 8 points and 10 points of correspondence on portal ring (1), every built-in slip casting pipe (3) are set respectively
The inner connected with injected hole (7) sealing on portal ring flat-plate (9), outer end stretching agent structure side wall (2) outside, and is set in outer end
There is built-in slip casting pipe ball valve (3-1).
6. a kind of shield tunnel knocker anti-seep water structure according to claim 1 or 2, it is characterised in that：Widening
Upper each injected hole (7) place of steel jacket box (6) is connected with Grouting Pipe (7-1), and provided with Grouting Pipe ball valve in Grouting Pipe (7-1)
(7-2)。
7. a kind of shield tunnel knocker anti-seep water structure according to claim 2, it is characterised in that：It is described to be opened in
Widen injected hole (7) on steel jacket box (6) be arranged on annular widen steel jacket box (6) correspond to respectively 2 points, 4 points, 8 points of tunnel shielding portal and
On the outer arc panel (6-11) of the arc casing (6-1) of 10 points of position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167492.2U CN206487496U (en) | 2017-02-23 | 2017-02-23 | A kind of shield tunnel knocker anti-seep water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167492.2U CN206487496U (en) | 2017-02-23 | 2017-02-23 | A kind of shield tunnel knocker anti-seep water structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487496U true CN206487496U (en) | 2017-09-12 |
Family
ID=59763392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720167492.2U Expired - Fee Related CN206487496U (en) | 2017-02-23 | 2017-02-23 | A kind of shield tunnel knocker anti-seep water structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487496U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965335A (en) * | 2017-11-21 | 2018-04-27 | 上海市机械施工集团有限公司 | A kind of shield driving construction method |
| CN109140046A (en) * | 2018-11-01 | 2019-01-04 | 中铁十八局集团有限公司 | A kind of push pipe pipe curtain faces end head plugging method |
| CN109681229A (en) * | 2018-12-30 | 2019-04-26 | 中国铁建股份有限公司 | Tunnel sealing component |
| CN111878110A (en) * | 2020-07-31 | 2020-11-03 | 中交隧道工程局有限公司 | Tunnel portal plugging device and method for shield tunnel starting |
| CN112901220A (en) * | 2021-01-28 | 2021-06-04 | 中铁第一勘察设计院集团有限公司 | Water stopping structure and method for connecting shield arrival ring steel-concrete combined duct piece with tunnel portal |
| CN113356897A (en) * | 2021-05-19 | 2021-09-07 | 中国建筑第五工程局有限公司 | Shield access portal ring beam assembly type structure and construction method |
| CN113756832A (en) * | 2021-09-28 | 2021-12-07 | 中铁一局集团有限公司 | Large-section rectangular oblique-crossing pipe jacking construction method |
-
2017
- 2017-02-23 CN CN201720167492.2U patent/CN206487496U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965335A (en) * | 2017-11-21 | 2018-04-27 | 上海市机械施工集团有限公司 | A kind of shield driving construction method |
| CN109140046A (en) * | 2018-11-01 | 2019-01-04 | 中铁十八局集团有限公司 | A kind of push pipe pipe curtain faces end head plugging method |
| CN109140046B (en) * | 2018-11-01 | 2020-04-14 | 中铁十八局集团有限公司 | Method for plugging end of pipe jacking pipe curtain |
| CN109681229A (en) * | 2018-12-30 | 2019-04-26 | 中国铁建股份有限公司 | Tunnel sealing component |
| CN111878110A (en) * | 2020-07-31 | 2020-11-03 | 中交隧道工程局有限公司 | Tunnel portal plugging device and method for shield tunnel starting |
| CN111878110B (en) * | 2020-07-31 | 2022-06-10 | 中交隧道工程局有限公司 | Tunnel portal plugging device and method for shield tunnel starting |
| CN112901220A (en) * | 2021-01-28 | 2021-06-04 | 中铁第一勘察设计院集团有限公司 | Water stopping structure and method for connecting shield arrival ring steel-concrete combined duct piece with tunnel portal |
| CN113356897A (en) * | 2021-05-19 | 2021-09-07 | 中国建筑第五工程局有限公司 | Shield access portal ring beam assembly type structure and construction method |
| CN113356897B (en) * | 2021-05-19 | 2023-09-12 | 中国建筑第五工程局有限公司 | Assembled structure of shield passageway portal ring beam and construction method |
| CN113756832A (en) * | 2021-09-28 | 2021-12-07 | 中铁一局集团有限公司 | Large-section rectangular oblique-crossing pipe jacking construction method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |