CN212744025U - Shield segment of prestressed concrete composite structure - Google Patents
Shield segment of prestressed concrete composite structure Download PDFInfo
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- CN212744025U CN212744025U CN202020467989.8U CN202020467989U CN212744025U CN 212744025 U CN212744025 U CN 212744025U CN 202020467989 U CN202020467989 U CN 202020467989U CN 212744025 U CN212744025 U CN 212744025U
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Abstract
The utility model relates to a building engineering tunnel shield constructs construction section of jurisdiction field, concretely relates to prestressing force steel concrete composite structure shield constructs section of jurisdiction, include: the pipe is formed by connecting a plurality of single pipes end to end, and a plurality of through holes are formed in the single pipes; the single pipe pieces are positioned in the frames, and the single pipe pieces are connected with the adjacent single pipe pieces through the frames; the steel strand wires are arranged in the through holes of the single pipe pieces, and two ends of the steel strand wires are detachably connected with the single pipe pieces on two sides. The utility model discloses owing to adopted every section of jurisdiction of steel strand wires and end bolted connection, can guarantee the connection stability between the single section of jurisdiction through end bolt and steel strand wires under the macroseism effect, protection main part prestressing force integrated configuration system safety.
Description
Technical Field
The utility model relates to a building engineering tunnel shield constructs construction section of jurisdiction field, concretely relates to prestressing force steel-concrete composite structure shield constructs section of jurisdiction.
Background
With the rapid development of economic construction in China, the climax of subway and comprehensive pipe gallery construction is gradually developed in China. In order to reduce the interference of construction to the environment as much as possible, a shield construction method is generally adopted. The method has the advantages of easy control of ground heave, no need of precipitation, less interference to the environment, high-speed and safe construction, good engineering quality and the like. The basic process of shield construction is that prefabricated shield segments are sequentially assembled inside a shield tail while a tunnel is tunneled, and a tunnel structure is formed in a ring-by-ring mode.
The shield segment type mainly comprises a nodular cast iron segment, a steel tube segment, a composite segment, a reinforced concrete segment and the like, and each ring is formed by combining a plurality of segments. The steel pipe sheet is mainly formed by welding and processing section steel or steel plates, has high strength, good ductility and convenient transportation and installation, is easy to deform under the action of construction stress during construction, and is easy to rust in the stratum. The reinforced concrete segment has certain strength, is easy to process and manufacture, is corrosion-resistant and low in manufacturing cost, is the most common segment form, is heavy and is easy to damage in the transportation and installation construction processes.
The pipe sheet is easy to float in the weak and easy-to-liquefy stratum. The stress floating of the duct piece can cause the safety accidents of the deviation of the axis of the tunnel, the dislocation and damage of the duct piece, the shearing of bolts between rings, water leakage and the like. Especially in weak stratum in strong earthquake areas, the traditional concrete segment form has larger safety risk.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prestressing force steel concrete integrated configuration shield constructs section of jurisdiction has solved in the easy liquefaction stratum in macroseism area concrete segment and has appeared that the connector bolt cuts, the section of jurisdiction breaks, section of jurisdiction tip concrete drops, big deformation and wrong platform etc. earthquake damage, has realized can the stable stay in the easy liquefaction stratum in macroseism area.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides a shield constructs section of jurisdiction of prestressing force steel concrete integrated configuration, includes:
the pipe is formed by connecting a plurality of single pipes end to end, and a plurality of through holes are formed in the single pipes;
the single pipe pieces are positioned in the frames, and the single pipe pieces are connected with the adjacent single pipe pieces through the frames;
the steel strand wires are arranged in the through holes of the single pipe pieces, and two ends of the steel strand wires are detachably connected with the single pipe pieces on two sides.
The frame comprises a pair of connecting plates and a pair of ends, the connecting plates are arranged on two axial sides of the single pipe piece respectively, the ends are fixed at two ends of the connecting plates respectively and are fixed with the connecting plates, the ends and the ends of the adjacent single pipe pieces are connected with bolts, two ends of each steel strand penetrate through the ends and the ends of the adjacent single pipe pieces to be detachably connected with the adjacent single pipe pieces, and the connecting plates are provided with a plurality of connecting holes.
Shear nails are fixed on one side, located on the single pipe, of the connecting plate and the end heads, and the shear nails are embedded into the single pipe.
The end outside is opened there is first seal groove, embedded first waterproof sealing washer in the first seal groove, first waterproof sealing washer both sides and end contact.
The connecting plate outside is opened has a pair of second seal groove, just the connecting hole is located a pair of between the second seal groove, the pipe both sides are provided with a pair of second sealing washer, and is a pair of the second sealing washer is located a plurality of respectively in the second seal groove of the connecting plate of single tube piece axial both sides.
The two ends of the steel strand are respectively connected with an anchoring piece, and the anchoring pieces are fixed with the single tube piece.
The utility model has the advantages that: because the steel strand and the end bolt are adopted to connect each segment, the connection stability between the single segments can be ensured through the end bolt and the steel strand under the action of strong shock, and the safety of a main body prestress combined structure system is protected.
The single pipe piece is of a concrete structure, the integral rigidity is high, and the pipe joint has two integrity guarantee measures of a U-shaped bolt and a prestressed steel strand in a strong earthquake area easy to liquefy.
The fastener of connecting the terminal surface can be guaranteed not to receive the moisture corrosion through first sealing washer and a pair of second sealing washer.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of a single-tube structure of the present invention.
Fig. 2 is a schematic view of the end connection structure of the present invention.
Fig. 3 is a schematic diagram of the connection of the steel strand of the present invention.
Fig. 4 is a front view of the tube of the present invention.
In the figure: 1-tube; 11-a single tube sheet; 2-steel strand wires; 3-connecting the plates; 4-end; 5-bolt; 6-shear nails; 7-a first waterproof sealing ring; 8-a second waterproof sealing ring; 9-anchor part.
Detailed Description
Example 1:
referring to fig. 4, it is the utility model discloses embodiment 1's structural schematic diagram, a prestressing force steel concrete integrated configuration shield constructs section of jurisdiction, include:
the pipe 1 is formed by connecting a plurality of single pipe pieces 11 end to end, and a plurality of through holes are formed in the single pipe pieces 11;
the single pipe pieces 11 are all provided with frames, the single pipe pieces are positioned in the frames, and the single pipe pieces 11 are connected with the adjacent single pipe pieces through the frames;
the steel strand wires 2, this steel strand wires 2 set up in the through-hole of single tube piece 11, and the steel strand wires 2 both ends can be dismantled with the single tube piece 11 of both sides and be connected.
In actual use: at first link together formation pipe 1 with every single section of jurisdiction 11 through the frame in the position of laying, then fix the school through steel strand wires 2 and adjacent single section of jurisdiction 11 and tighten, make and connect more tightly between the frame, when carrying out steel strand wires 2 and fix, steel strand wires 2 in steel strand wires 2 and the adjacent single section of jurisdiction 11 on every single section of jurisdiction 11 are the staggered arrangement in proper order, specifically are the steel strand wires 2 line bodies of the end both sides of a steel strand wires 2 for adjacent single section of jurisdiction 11.
The single-tube sheet 11 in this embodiment is of a reinforced concrete structure.
Example 2:
on the basis of embodiment 1, referring to fig. 1, the present embodiment is different in that: the frame comprises a pair of connecting plates 3 and a pair of ends 4, the connecting plates 3 are respectively arranged on two axial sides of a single pipe piece 11, the ends 4 are respectively fixed at two ends of the connecting plates 3, the ends 4 are fixed with the connecting plates 3, the ends 4 and the ends 4 of adjacent single pipe pieces 11 are connected with bolts 5, two ends of each steel strand 2 penetrate through the ends 4 and the ends 4 of the adjacent single pipe pieces 11 to be detachably connected with the adjacent single pipe pieces 11, and the connecting plates 3 are provided with a plurality of connecting holes.
In actual use: wrap up outside single section of jurisdiction 11 through connecting plate 3 and end 4, can increase the structural strength of single section of jurisdiction 11, connect the end through bolt 5 simultaneously and can conveniently assemble, improve the efficiency of arranging of pipe 1, when simultaneously through 1 axial connections of pipe, through the connecting hole with the same pipe 1 by the bolt be connected can.
In this embodiment, the bolt 5 may be connected by a U-shaped bolt.
Example 3:
on the basis of embodiment 1 or 2, referring to fig. 1, the present embodiment is different in that: the shear nails 6 are fixed on one sides, located on the single pipe piece 11, of the connecting plates 3 and the end heads 4, and the shear nails 6 are embedded into the single pipe piece 11.
In actual use: the single-pipe piece 11 is directly cast and molded in a frame formed by the pair of connecting plates 3 and the pair of end heads 4, and during casting, the shear nails 6 are cast in the single-pipe piece 11, so that the connecting plates 3 and the end heads 4 are connected with the single-pipe piece 11 through the shear nails 6 more stably, and the overall structural strength is increased.
Example 4:
on the basis of embodiment 1 or 2 or 3, referring to fig. 1, the present embodiment is different in that: the outer side of the end head 4 is provided with a first sealing groove, a first waterproof sealing ring 7 is embedded in the first sealing groove, and two sides of the first waterproof sealing ring 7 are in contact with the end head 4.
In actual use: through first waterproof sealing circle 7, can be when end 4 passes through bolt 5 and connects, two end 4 press from both sides tight first waterproof sealing circle 7, and the terminal surface that end 4 is connected is isolated, makes bolt 5 can not corroded, can prevent again simultaneously that pipe 1 is outside to oozing in the pipe 1.
Example 5:
on the basis of embodiment 4, referring to fig. 1, the present embodiment is different in that: a pair of second seal grooves are formed in the outer sides of the connecting plates 3, the connecting holes are located in a pair between the second seal grooves, a pair of second waterproof seal rings 8 are arranged on two sides of the pipe 1, and the second waterproof seal rings 8 are located in a plurality of the second seal grooves of the connecting plates 3 on two axial sides of the single pipe piece 11 respectively.
In actual use: when being connected by bolt 5 through the connecting hole through second waterproof sealing ring 8 between pipe 1 and pipe 1, the pipe 1 is interior to be sealed through second waterproof sealing ring 8 with 1 outer gap of pipe, prevents the infiltration.
Example 6:
on the basis of embodiment 5, referring to fig. 1, the present embodiment is different in that: the two ends of the steel strand 2 are respectively connected with an anchoring part 9, and the anchoring parts 9 are fixed with the single tube piece 11.
In actual use: can make things convenient for steel strand wires 2 to connect through anchor assembly 9, make things convenient for steel strand wires 2 to carry out the work of proofreading after connecting, make and connect between the single tube piece 11 more firmly.
The anchor 9 in this embodiment is a pre-stressed anchor.
In this embodiment, an operation hole is formed in the inner wall surface of the single tube piece 11 above the anchor.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all such changes are within the scope of the present invention.
Claims (6)
1. The utility model provides a shield constructs section of jurisdiction of prestressing force steel concrete integrated configuration which characterized in that includes:
the pipe (1) is formed by connecting a plurality of single pipe pieces (11) end to end, and a plurality of through holes are formed in the single pipe pieces (11);
the single pipe pieces (11) are all provided with frames, the single pipe pieces are positioned in the frames, and the single pipe pieces (11) are connected with the adjacent single pipe pieces through the frames;
the steel strand wires (2), this steel strand wires (2) set up in the through-hole of single section of jurisdiction (11), and steel strand wires (2) both ends can be dismantled with single section of jurisdiction (11) of both sides and be connected.
2. The shield segment of the prestressed concrete composite structure according to claim 1, wherein the frame comprises a pair of connecting plates (3) and a pair of ends (4), the pair of connecting plates (3) are respectively arranged on two axial sides of a single segment (11), the pair of ends (4) are respectively fixed at two ends of the pair of connecting plates (3), the ends (4) are fixed with the connecting plates (3), the ends (4) of the ends (4) and the ends (4) of the adjacent single segments (11) are connected with bolts (5), the ends (4) of the steel strand (2) penetrating through the ends (4) and the ends (4) of the adjacent single segments (11) are detachably connected with the adjacent single segments (11), and the connecting plates (3) are provided with a plurality of connecting holes.
3. The shield segment of the prestressed concrete composite structure according to claim 2, wherein the connecting plate (3) and the end head (4) are positioned on one side of the single segment (11) and fixed with shear nails (6), and the shear nails (6) are embedded into the single segment (11).
4. The shield segment of the prestressed concrete composite structure according to claim 2, wherein a first sealing groove is formed in the outer side of the end head (4), a first waterproof sealing ring (7) is embedded in the first sealing groove, and two sides of the first waterproof sealing ring (7) are in contact with the end head (4).
5. The shield segment of the prestressed concrete composite structure according to claim 2, wherein a pair of second sealing grooves are formed in the outer side of each connecting plate (3), the connecting holes are located between the pair of second sealing grooves, a pair of second waterproof sealing rings (8) are arranged on two sides of the pipe (1), and the pair of second waterproof sealing rings (8) are respectively located in the second sealing grooves of the connecting plates (3) on two axial sides of the single segment (11).
6. The shield segment of the prestressed concrete composite structure according to claim 1, wherein two ends of the steel strand (2) are respectively connected with an anchoring piece (9), and the anchoring pieces (9) are fixed with a single segment (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020467989.8U CN212744025U (en) | 2020-04-02 | 2020-04-02 | Shield segment of prestressed concrete composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020467989.8U CN212744025U (en) | 2020-04-02 | 2020-04-02 | Shield segment of prestressed concrete composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744025U true CN212744025U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020467989.8U Active CN212744025U (en) | 2020-04-02 | 2020-04-02 | Shield segment of prestressed concrete composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212744025U (en) |
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2020
- 2020-04-02 CN CN202020467989.8U patent/CN212744025U/en active Active
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