CN216240680U - Steel pipe grouting reinforcement structure for shield construction - Google Patents
Steel pipe grouting reinforcement structure for shield construction Download PDFInfo
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- CN216240680U CN216240680U CN202122884497.6U CN202122884497U CN216240680U CN 216240680 U CN216240680 U CN 216240680U CN 202122884497 U CN202122884497 U CN 202122884497U CN 216240680 U CN216240680 U CN 216240680U
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Abstract
The application discloses shield constructs engineering steel pipe slip casting reinforced structure relates to tunnel construction technical field, and its technical scheme includes: the inside lining is kept away from the steel pipe of outside country rock one side in the shield structure section of jurisdiction, it has the concrete to fill between steel pipe and the shield structure section of jurisdiction, the steel pipe includes many continuous annular section of jurisdiction, the one end of annular section of jurisdiction is seted up flutedly, the other end of annular section of jurisdiction is provided with the extension piece, extend piece sliding connection in the recess, the extending direction who extends the piece is unanimous with the extending direction of annular section of jurisdiction, be provided with the locking subassembly that the locking extended the piece in the recess, this application when using, can improve the length of inside lining steel pipe very long, when transporting and construction, very inconvenient, reduced the problem of efficiency of construction.
Description
Technical Field
The application relates to the technical field of tunnel construction, in particular to a steel pipe grouting reinforcement structure for shield engineering.
Background
The shield method is a fully mechanical construction method in the construction of the underground excavation method, which is a mechanical construction method that a shield machine is pushed in the ground, surrounding rocks around are supported by a shield shell and segments to prevent collapse into a tunnel, meanwhile, a cutting device is used for excavating soil in front of an excavation surface, the soil is transported out of the tunnel by an unearthing machine, is pressed and jacked at the rear part by a jack, and precast concrete segments are assembled to form a tunnel structure, and the method is widely applied to the construction of tunnel engineering of urban underground railways, underground pipelines and the like.
The prior patent with the application number of CN 201821011932.6 proposes a combined stress pressure water-delivery shield tunnel lining structure, which comprises a wall post-grouting layer, shield segments, a silicate concrete surface modification layer, a self-compacting concrete layer and a lining steel pipe, wherein the wall post-grouting layer is grouted between the shield segments and an external surrounding rock, the shield segments are embedded in the wall post-grouting layer in a tubular shape, the lining steel pipe is integral, the lining steel pipe is embedded in the inner side of the shield segments, the self-compacting concrete layer is filled between the shield segments and the lining steel pipe, a plurality of stiffening rings are arranged on the outer surface of the lining steel pipe, the stiffening rings are embedded in the self-compacting concrete layer, a plurality of studs are arranged on the outer surface of the lining steel pipe, the studs are embedded in the self-compacting concrete layer and positioned between two adjacent stiffening rings, the silicate concrete surface modification layer is used as an interface agent and is adsorbed on the inner surface of the shield segments, and the shield segment and the lining steel pipe jointly act to jointly bear the stress, and the requirements of internal pressure bearing capacity and external pressure resistance stability of the structure are met.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the lining steel pipe placed into the tunnel is integral, the length is very long, the lining steel pipe is very inconvenient to transport and construct, the construction efficiency is reduced, and the lining steel pipe needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The steel pipe grouting reinforcement structure for the shield construction is used for improving the problems that the length of a lining steel pipe is very long, the lining steel pipe is very inconvenient to transport and construct, and the construction efficiency is reduced.
The application provides a shield constructs engineering steel pipe slip casting reinforced structure adopts following technical scheme:
the utility model provides a shield constructs steel pipe slip casting reinforced structure for engineering, includes that the inside lining keeps away from the steel pipe of outside country rock one side in the shield section of jurisdiction, it has the concrete to fill between steel pipe and the shield section of jurisdiction, the steel pipe includes many continuous annular sections of jurisdiction, the one end of annular section of jurisdiction is seted up flutedly, the other end of annular section of jurisdiction is provided with the extension piece, extend piece sliding connection in the recess, the extending direction who extends the piece is unanimous with the extending direction of annular section of jurisdiction, be provided with the locking subassembly that the locking extended the piece in the recess.
Through adopting above-mentioned technical scheme, the extension piece sliding connection who sets up and in the recess, will extend the piece locking in the recess through the locking subassembly, can realize very convenient and fast with the connection that can be stable between two ring segments to can improve the length that improves the inside lining steel pipe very long, when transporting and constructing, very inconvenient, can reduce the problem of efficiency of construction.
Optionally, the extension block is internally provided with a sliding groove, the extension direction of the sliding groove is perpendicular to the extension direction of the extension block, the locking assembly comprises a sliding piece and an elastic piece, the sliding piece comprises a sliding block connected in the sliding groove in a sliding manner, and one end of the inner wall of the extension groove is far away from the sliding block and is fixedly connected with a clamping piece clamped on the side wall of the groove.
Through adopting above-mentioned technical scheme, the slider of setting can slide in the spout under the effect of elastic component to make the slider drive joint spare shrink to spout, or make joint spare card in the recess, then can realize the high-speed joint between two adjacent annular pieces with the card that the extension piece can be stable in the recess.
Optionally, the elastic element includes a compression spring, one end of the compression spring is fixedly connected with the inner wall of the extension groove, and the other end of the compression spring is fixedly connected with one side of the sliding block close to the inner wall of the extension groove.
Through adopting above-mentioned technical scheme, the compression spring that sets up can utilize compression spring's elastic force, and the drive slider slides in the spout to make the slider drive joint spare card in the recess.
Optionally, the clamping piece comprises a clamping block arranged on one side, far away from the side wall of the extending groove, of the sliding block, the side wall of the groove is provided with a clamping groove, and the clamping block is clamped in the clamping groove.
Through adopting above-mentioned technical scheme, the fixture block and the draw-in groove of setting can make the slider drive the fixture block and slide at the recess lateral wall under compression spring's elastic action, when sliding to the position that is close to the draw-in groove, make the fixture block can block in the draw-in groove, realize extending the card that the piece can be stable in the recess to can realize the stable connection between two adjacent annular segments.
Optionally, the clamping block is a tapered wedge, and the groove is provided with a tapered slot matched with the clamping block on the side wall of the pipe orifice close to the annular duct piece.
Through adopting above-mentioned technical scheme, the fixture block that sets up is the tapered wedge setting, can make things convenient for the fixture block to follow the chute and slide into the recess together with the extension piece, when the fixture block slided into the recess along the chute, can make the slider support and press compression spring, make the fixture block shrink to the spout in, when being close to the draw-in groove, can make the fixture block card go into in the draw-in groove, realize the locking to the fixture block to can be with extending the piece card in the recess, realize the high-speed joint between two continuous annular section of jurisdiction.
Optionally, the annular piece is installed to the one end of annular section of jurisdiction, the ring channel with annular piece looks adaptation is seted up to the other end of annular section of jurisdiction, annular piece sliding connection is in the ring channel of another annular section of jurisdiction, just the mouth of pipe one end that the annular section of jurisdiction was kept away from to the ring channel is for closing the mouth setting.
By adopting the technical scheme, the two annular sheets can be connected more tightly by the arranged annular sheets and the annular groove.
Optionally, an elastic gasket is installed at one end of the annular groove, which is in a closed arrangement.
Through adopting above-mentioned technical scheme, the elastic washer that sets up can cushion the distance between the closed end of annular piece and ring channel, can be after the fixture block card goes into the draw-in groove, make the butt that the annular piece can be inseparable in the ring channel, reduce the gap of annular piece and ring channel closed end one end.
Optionally, the clamping groove is in a tapered wedge shape matched with the clamping block.
Through adopting above-mentioned technical scheme, the draw-in groove sets up to the tapered wedge with fixture block looks adaptation, can make the card that the fixture block can be stable in the draw-in groove, reduces the space to can reduce the condition that the fixture block rocked in the draw-in groove to appear.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the extending block and the groove are arranged, so that the extending block can be slid into the groove, and then the extending block is locked in the groove through the locking assembly, and therefore the connection between two adjacent annular duct pieces can be realized very conveniently and rapidly;
2. the spout, slider, compression spring and the fixture block that set up can make the slider slide in the spout under compression spring's elastic force, and the spout drives the fixture block again and slides, makes the fixture block can block in the draw-in groove to can make the extension piece card in the recess, further realize the stable connection between two annular sections of jurisdiction.
Drawings
FIG. 1 is a schematic overall cross-sectional structural view of an embodiment of the present application;
FIG. 2 is a schematic view of the overall structure of the connection of two annular segments in the embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of the connection between two annular segments in an embodiment of the present application.
Reference numerals: 1. an outer surrounding rock; 2. a shield segment; 3. an annular duct piece; 30. a groove; 31. a chute; 32. a slider; 33. a compression spring; 34. a clamping block; 35. a card slot; 36. a chute; 4. an extension block; 41. an annular sheet; 42. an annular groove.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses steel pipe slip casting reinforced structure for shield construction, refer to fig. 1, including the inside lining in shield section of jurisdiction 2 keep away from the steel pipe of outside country rock 1 one side, it has the concrete to fill between shield section of jurisdiction 2 and the outside country rock 1, it has the concrete also to fill between steel pipe and the shield section of jurisdiction 2, shield section of jurisdiction 2 and the structure that the steel pipe joint action bore jointly, the pressure bearing capacity and the anti external pressure stable requirement in the structure have been taken into account, but the length overlength of steel pipe, when transportation and installation, can be very inconvenient, can reduce the efficiency of construction.
Therefore, in this embodiment, referring to fig. 2 and 3, the steel pipe includes a plurality of connected annular segments 3, in order to make a plurality of annular segments 3 more convenient and faster when being connected with each other, a groove 30 is provided at one end of the annular segment 3, an extension block 4 is installed at the other end of the annular segment 3, the extension block 4 slides in two rows and in the groove 30, the extension direction of the extension block 4 is consistent with the extension direction of the annular segment 3, the groove 30 and the extension block 4 are both set to be square, and the thickness of the steel pipe is larger, and can adapt to the arrangement of the square groove 30 in the annular segment 3, and the extension block 4 is equidistantly distributed around each annular segment 3 and is at least provided with four, so that stable connection between two adjacent annular segments 3 can be maintained.
In this embodiment, with reference to fig. 3, in order to allow the extension block 4 to be stably caught in the groove 30, maintain stability between two adjacent annular segments 3, one end of the extending block 4, which is far away from the annular duct piece 3, is provided with a sliding chute 31, the sliding chute 31 can be square, the extending direction of the sliding chute 31 is vertical to the extending direction of the extending block 4, a slide block 32 is connected in the slide groove 31 in a sliding way, and two ends of the opening of the slide groove 31 are provided with limit blocks for clamping the slide block 32, so that the slide block 32 can only slide in the slide groove 31, one end of the slide groove 31 far away from the inner wall of the extension groove is provided with a clamp block 34, the side wall of the groove 30 is provided with a clamping groove 35 matched with the clamping block 34, the clamping block 34 can be driven by the sliding block 32 to contract to the sliding groove 31, the clamping block 34 can also slide out of the sliding groove 31 under the driving of the sliding block 32 to clamp the clamping block 34 in the clamping groove 35, and the extension block 4 is stably clamped in the groove 30.
In order to realize that the clamping block 34 can be clamped in the clamping groove 35 under the driving of the sliding block 32, in this embodiment, a compression spring 33 is arranged between the sliding block 32 and the inner wall of the sliding groove 31, one end of the compression spring 33 is fixedly connected with the inner wall of the sliding groove 31, the other end of the compression spring 33 is fixedly connected with one side of the sliding block 32 close to the inner wall of the sliding groove 31, the sliding block 32 can be driven to slide in the sliding groove 31 by utilizing the compression elastic acting force, and the clamping block 34 is driven to be clamped in the clamping groove 35.
In this embodiment, referring to fig. 3, the latch 34 is a tapered wedge, and a tapered slot 36 adapted to the latch 34 is formed on the sidewall of the opening of the groove 30 close to the annular tube piece 3, when two adjacent annular tube pieces 3 are spliced, under the elastic action of the compression spring 33, the latch 34 will protrude out of the outer end of the sliding slot 31, the latch 34 will abut against the tapered slot 36 first, then the annular tube piece 3 will be pushed, and the latch 34 will slide along the tapered slot 36 and shrink into the sliding slot 31, and then the annular tube piece 3 will be pushed continuously, the whole extension block 4 will slide in the groove 30, when the latch 34 slides to a position close to the slot 35, the latch 34 will pop out of the sliding slot 31 under the elastic action of the compression spring 33, and then be engaged in the slot 35, so that the extension block 4 is fixed in the groove 30, and the distance between the two adjacent annular tube pieces 3 can simultaneously keep the two adjacent annular tube pieces 3 abutting against each other at the slot 35, through the arrangement, the connection between two adjacent annular pipe pieces 3 can be realized very conveniently and quickly.
In this embodiment, in order to make the connection that can be inseparabler between the two adjacent annular section of jurisdiction 3, annular piece 41 is installed to the one end at annular section of jurisdiction 3, annular groove 42 with annular piece 41 looks adaptation is seted up to the other end of annular section of jurisdiction 3, the mouth of pipe one end that annular groove 42 kept away from annular section of jurisdiction 3 is for closing the mouth, annular piece 41 sliding connection is in the annular groove 42 of another annular section of jurisdiction 3, promote annular section of jurisdiction 3 and make fixture block 34 card go into the in-process of draw-in groove 35, annular piece 41 also slides in annular groove 42, elastic washer is installed to the one end that the annular groove 42 is the closing the mouth setting, when fixture block 34 card is in draw-in groove 35, can make annular piece 41 support the elastic washer in pressing annular groove 42, elastic washer adopts rubber material to make, can close the effect of distance between one end to the buffering to annular piece 41 and annular groove 42.
The implementation principle of the steel pipe grouting reinforcement structure for the shield engineering in the embodiment of the application is as follows: when two annular section of jurisdiction 3 are connected, in 34 butt chute 36 of fixture block, then promote annular section of jurisdiction 3, fixture block 34 can slide along chute 36 simultaneously, under compression spring 33's elastic force, shrink to in the spout 31, continue to promote annular section of jurisdiction 3, whole extension piece 4 can slide in recess 30, when sliding to fixture block 34 and being close to draw-in groove 35, fixture block 34 can pop out spout 31 under compression spring 33's elastic force, then the block is in draw-in groove 35, realize extending 4 and fix in recess 30, thereby can make extension piece 4 card in recess 30, can realize the high-speed joint between two adjacent annular section of jurisdiction 3 then.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a shield constructs engineering steel pipe slip casting reinforced structure which characterized in that: keep away from the steel pipe of outside country rock (1) one side including the inside lining in shield structure section of jurisdiction (2), it has the concrete to fill between steel pipe and the shield structure section of jurisdiction (2), the steel pipe includes many annular section of jurisdiction (3) that link to each other, the one end of annular section of jurisdiction (3) is seted up flutedly (30), the other end of annular section of jurisdiction (3) is provided with extension piece (4), extend piece (4) sliding connection in recess (30), the extending direction of extension piece (4) is unanimous with the extending direction of annular section of jurisdiction (3), be provided with the locking subassembly of locking extension piece (4) in recess (30).
2. The steel pipe grouting reinforcement structure for shield construction according to claim 1, characterized in that: the extension block (4) is internally provided with a sliding groove (31), the extension direction of the sliding groove (31) is perpendicular to the extension direction of the extension block (4), the locking assembly comprises a sliding piece and an elastic piece, the sliding piece comprises a sliding block (32) connected in the sliding groove (31) in a sliding mode, and the sliding block (32) is far away from one end of the inner wall of the extension groove and is fixedly connected with a clamping piece clamped on the side wall of the groove (30).
3. The steel pipe grouting reinforcement structure for shield construction according to claim 2, characterized in that: the elastic component comprises a compression spring (33), one end of the compression spring (33) is fixedly connected with the inner wall of the extension groove, and the other end of the compression spring (33) is fixedly connected with the sliding block (32) close to one side of the inner wall of the extension groove.
4. The steel pipe grouting reinforcement structure for shield construction according to claim 2, characterized in that: the clamping piece comprises a clamping block (34) which is arranged on one side, far away from the side wall of the extending groove, of the sliding block (32), a clamping groove (35) is formed in the side wall of the groove (30), and the clamping block (34) is clamped in the clamping groove (35).
5. The steel pipe grouting reinforcement structure for shield construction according to claim 4, characterized in that: the clamping block (34) is arranged as an oblique wedge, and the side wall of the pipe opening of the groove (30) close to the annular pipe piece (3) is provided with an oblique groove (36) matched with the clamping block (34).
6. The steel pipe grouting reinforcement structure for shield construction according to claim 1, characterized in that: annular piece (41) is installed to the one end of annular section of jurisdiction (3), annular groove (42) with annular piece (41) looks adaptation is seted up to the other end of annular section of jurisdiction (3), annular piece (41) sliding connection is in annular groove (42) of another annular section of jurisdiction (3), just mouth of pipe one end that annular section of jurisdiction (3) was kept away from in annular groove (42) is for closing the mouth.
7. The steel pipe grouting reinforcement structure for shield construction according to claim 6, characterized in that: and an elastic gasket is arranged at one end of the annular groove (42) in a closed manner.
8. The steel pipe grouting reinforcement structure for shield construction according to claim 5, characterized in that: the clamping groove (35) is in a wedge shape matched with the clamping block (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122884497.6U CN216240680U (en) | 2021-11-23 | 2021-11-23 | Steel pipe grouting reinforcement structure for shield construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122884497.6U CN216240680U (en) | 2021-11-23 | 2021-11-23 | Steel pipe grouting reinforcement structure for shield construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216240680U true CN216240680U (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122884497.6U Active CN216240680U (en) | 2021-11-23 | 2021-11-23 | Steel pipe grouting reinforcement structure for shield construction |
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| Country | Link |
|---|---|
| CN (1) | CN216240680U (en) |
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- 2021-11-23 CN CN202122884497.6U patent/CN216240680U/en active Active
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