CN218759919U - Splicing type rectangular shield segment combined structure - Google Patents
Splicing type rectangular shield segment combined structure Download PDFInfo
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- CN218759919U CN218759919U CN202223179611.6U CN202223179611U CN218759919U CN 218759919 U CN218759919 U CN 218759919U CN 202223179611 U CN202223179611 U CN 202223179611U CN 218759919 U CN218759919 U CN 218759919U
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Abstract
The utility model discloses a concatenation formula rectangle shield constructs section of jurisdiction integrated configuration. The shield comprises two symmetrically arranged U-shaped shield segments; each shield segment is symmetrically provided with 2n arc-shaped preformed holes, and the side surface of each shield segment is also symmetrically provided with 2n bolt hand holes; when two shield segments are spliced, an arc bolt penetrates through two arc preformed holes matched in the two shield segments, and the arc bolt extends into a bolt hand hole and is in threaded connection with a nut; a polymer mortar layer for plugging the bolt hand hole is also fixedly arranged in the bolt hand hole; the side surface of each shield segment, which is provided with the bolt hand hole, is also embedded with an embedded steel plate, the embedded steel plates are fixedly connected with embedded shield splicers, and the embedded shield splicers are positioned inside the shield segments; the pre-buried steel plates of the two shield segments are fixedly connected through the matched steel plates. The utility model provides a concatenation formula rectangle shield constructs section of jurisdiction integrated configuration's node concatenation is more firm.
Description
Technical Field
The utility model relates to an electric power tunnel or shield tunnel technical field, concretely relates to concatenation formula rectangle shield constructs section of jurisdiction integrated configuration.
Background
The small-size rectangular shield segments are transversely spliced at a plurality of positions with large side wall bending moment, the node splicing mode of the small-size rectangular shield segments is only connected through bolts at present, only the bolts are difficult to bear the vertical bending moment of the side walls, large deformation easily exists at the splicing positions, and great potential safety hazards are brought to engineering. Therefore, a rectangular shield segment assembly with more stable node splicing is needed.
SUMMERY OF THE UTILITY MODEL
In order to compensate for the defects of the prior art, the utility model provides a concatenation formula rectangle shield constructs section of jurisdiction integrated configuration.
The technical scheme of the utility model is that:
a spliced rectangular shield segment combined structure comprises two symmetrically arranged U-shaped shield segments; each shield segment is symmetrically provided with 2n arc-shaped preformed holes, n is a natural number which is more than or equal to 1, and the side surface of each shield segment is also symmetrically provided with 2n bolt hand holes; the shield segment splicing device is characterized by also comprising 2n arc-shaped bolts, wherein when two shield segments are spliced, one arc-shaped bolt penetrates through two arc-shaped reserved holes matched in the two shield segments, and the arc-shaped bolt extends into a bolt hand hole and is connected with a nut in a threaded manner; a polymer mortar layer for plugging the bolt hand hole is also fixedly arranged in the bolt hand hole; the side surface, provided with the bolt hand hole, of each shield segment is also embedded with embedded steel plates, the number of the embedded steel plates is consistent with that of the arc-shaped reserved holes, the embedded steel plates are fixedly connected with embedded shield splicing pieces, and the embedded shield splicing pieces are located inside the shield segments; and the two pre-buried steel plates of the shield segment are fixedly connected through matched steel plates.
Preferably, pre-buried shield structure splice includes parallel and fixed connection's with pre-buried steel sheet reinforcing bar I, I fixedly connected with reinforcing bar II of reinforcing bar, contained angle alpha between I and the reinforcing bar II of reinforcing bar is 90, the free end difference fixedly connected with reinforcing bar III of I and the reinforcing bar II of reinforcing bar, two reinforcing bar III sets up for the slope. Among this above-mentioned setting, both satisfied standard anchor length requirement, moreover, this pre-buried shield splice and pre-buried steel sheet fixed connection make up the connecting piece that together makes up more can effectively resist the moment of flexure that produces, it is exactly specifically, pre-buried steel sheet is with the vertical cross production great moment of flexure of lateral wall turn into the pulling force at the section of jurisdiction inner wall, and pre-buried steel sheet in this application, pre-buried shield splice and the cooperation use after supporting steel sheet welded connection together can resist the pulling force that produces, replace the effect of steel sheet in the complete section of jurisdiction structure.
Preferably, two reinforcing bars III are parallel arrangement, the contained angle beta between the plane of reinforcing bar III and the pre-buried steel plate is 45-60 degrees, and one of them reinforcing bar III penetrates shield structure section of jurisdiction, bolt hand hole and shield structure section of jurisdiction in proper order.
Preferably, the included angle between the plane where the steel bar III and the embedded steel plate are located is 45 degrees.
Preferably, the arc bolt still is equipped with rubber seal, gasket in extending to bolt hand hole, the arc bolt extends to and passes rubber seal and gasket back threaded connection nut in proper order in the bolt hand hole.
Preferably, the outer end face of the polymer mortar layer and the outer end face of the shield segment are on the same plane.
Preferably, a placement groove is further formed in the splicing surface of one of the shield segments, and a water stop strip is fixedly arranged in the placement groove.
Preferably, the distance between the placing groove and the arc-shaped preformed hole is 50-125mm.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the concatenation formula rectangle shield constructs section of jurisdiction integrated configuration's that this application claimed node concatenation is more firm, and concatenation formula rectangle shield constructs section of jurisdiction integrated configuration that this application claimed has good structural stability. Under the condition of larger burial depth, the rectangular shield segment is subjected to larger lateral water pressure and soil pressure, and larger bending moment and shearing force can be generated in the vertical span of the side wall of the rectangular shield segment; and bolt and pre-buried steel sheet, the combined action of pre-buried shield splice and supporting steel sheet can be better bear the effort of side direction water pressure and soil pressure, reduce here shield section of jurisdiction and warp, moreover, bolt and pre-buried steel sheet in this application, the cooperation of pre-buried shield splice and supporting steel sheet is used and can be effectively resisted the moment of flexure that produces again, the pre-buried steel sheet in this application can be with the vertical midspan production great moment of flexure of lateral wall change into the pulling force at the section of jurisdiction inner wall promptly, and pre-buried steel sheet in this application, the cooperation after pre-buried shield splice and supporting steel sheet welded connection together is used and can be resisted the pulling force that produces, replace the effect of steel sheet in the complete section of jurisdiction structure.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application with the bolt hand hole unblocked by the polymer mortar layer;
FIG. 2 is a schematic cross-sectional view of a side-wall position junction of two shield segments according to the present application;
fig. 3 is a side view structure diagram of the connection of the side wall positions of two shield segments in the application.
In the figure: 1. a shield segment; 2. an arc-shaped preformed hole; 3. an arc bolt; 4. a bolt hand hole; 5. a rubber seal ring; 6. a gasket; 7. a nut; 8. a polymer mortar layer; 9. pre-burying a steel plate; 10. a matched steel plate; 11. reinforcing steel bars I; 12. reinforcing steel bars II; 13. reinforcing steel bars III, 14 placing grooves and 15 water stop bars.
Detailed Description
As shown in fig. 1 to 3, a spliced rectangular shield segment combination structure comprises two symmetrically arranged U-shaped shield segments 1;
each shield segment 1 is provided with four arc-shaped preformed holes 2, and the four arc-shaped preformed holes 2 are arranged in a pairwise symmetrical manner; four bolt hand holes 4 are also formed in the side surface of each shield segment 1, and the four bolt hand holes 4 are also arranged in a pairwise symmetrical manner;
when two shield segments 1 are spliced, two pairs of arc-shaped preformed holes 2 on the left side of the two shield segments 1 are respectively penetrated with an arc-shaped bolt 3, and two pairs of arc-shaped preformed holes 2 on the right side are respectively penetrated with an arc-shaped bolt 3; the four arc-shaped bolts 3 extend into bolt hand holes 4 respectively and sequentially penetrate through rubber sealing rings 5 and gaskets 6 to be connected with nuts 7 in a threaded mode; a polymer mortar layer 8 for plugging the bolt hand hole 4 is also fixedly arranged in the bolt hand hole 4, and the outer end surface of the polymer mortar layer 8 and the outer end surface of the shield segment 1 are positioned on the same plane;
the side surface, provided with the bolt hand hole 4, of each shield segment 1 is also embedded with four embedded steel plates 9, and the number of the embedded steel plates 9 on each shield segment 1 is four; the pre-buried steel plates 9 are fixedly connected with pre-buried shield splicers which are positioned inside the shield segment 1;
the shield segment structure also comprises four matched steel plates 10, wherein two matched steel plates 10 are respectively in welding connection with two pairs of embedded steel plates 9 positioned on the left side of the two shield segment 1, and the other two matched steel plates 10 are respectively in welding connection with two pairs of embedded steel plates 9 positioned on the right side of the two shield segment 1;
in addition, the embedded shield splicing piece in the application comprises a steel bar I11 which is parallel to and fixedly connected with an embedded steel plate 9, the steel bar I11 is fixedly connected with a steel bar II 12, an included angle alpha between the steel bar I11 and the steel bar II 12 is 90 degrees, free ends of the steel bar I11 and the steel bar II 12 are respectively fixedly connected with steel bars III 13, the two steel bars III 13 are arranged in parallel, an included angle beta between the steel bars III 13 and a plane where the embedded steel plate 9 is located is 45 degrees, and one of the steel bars III 13 sequentially penetrates through a shield segment 1, a bolt hand hole 4 and a shield segment 1;
in addition, still seted up on one of them shield structure section of jurisdiction 1's the concatenation face in this application and placed groove 14, the distance between placing groove 14 and the arc preformed hole 2 is 50mm, still fixedly in the placing groove 14 to be equipped with sealing rod 15 and be used for the stagnant water.
Claims (8)
1. The utility model provides a concatenation formula rectangle shield constructs section of jurisdiction integrated configuration which characterized in that: comprises two symmetrically arranged U-shaped shield segments; each shield segment is symmetrically provided with 2n arc-shaped preformed holes, n is a natural number which is more than or equal to 1, and the side surface of each shield segment is also symmetrically provided with 2n bolt hand holes; the shield segment splicing device is characterized by also comprising 2n arc-shaped bolts, wherein when two shield segments are spliced, one arc-shaped bolt penetrates through two arc-shaped reserved holes matched in the two shield segments, and the arc-shaped bolt extends into a bolt hand hole and is connected with a nut in a threaded manner; a polymer mortar layer for plugging the bolt hand hole is also fixedly arranged in the bolt hand hole; the side surface, provided with the bolt hand hole, of each shield segment is also embedded with embedded steel plates, the number of the embedded steel plates is consistent with that of the arc-shaped reserved holes, the embedded steel plates are fixedly connected with embedded shield splicing pieces, and the embedded shield splicing pieces are located inside the shield segments; two pre-buried steel sheets of two shield pipe section looks adaptations are through a supporting steel sheet fixed connection.
2. The spliced rectangular shield segment combination structure of claim 1, wherein: the embedded shield splicing piece comprises a steel bar I which is parallel to and fixedly connected with an embedded steel plate, the steel bar I is fixedly connected with a steel bar II, an included angle alpha between the steel bar I and the steel bar II is 90 degrees, the free ends of the steel bar I and the steel bar II are fixedly connected with steel bars III and two steel bars III are obliquely arranged.
3. The spliced rectangular shield segment combination structure of claim 2, wherein: two reinforcing bar III is parallel arrangement, the contained angle beta between reinforcing bar III and the pre-buried steel sheet place plane is 45-60, and one of them reinforcing bar III penetrates shield structure section of jurisdiction, bolt hand hole and shield structure section of jurisdiction in proper order.
4. The spliced rectangular shield segment combination structure of claim 3, wherein: and the included angle between the steel bar III and the plane where the embedded steel plate is located is 45 degrees.
5. The spliced rectangular shield segment combined structure of claim 1, which is characterized in that: the arc bolt extends to the bolt hand hole and is further provided with a rubber sealing ring and a gasket, and the arc bolt extends to the bolt hand hole and sequentially penetrates through the rubber sealing ring and the gasket to be connected with the nut through threads.
6. The spliced rectangular shield segment combination structure of claim 1, wherein: the outer end face of the polymer mortar layer and the outer end face of the shield segment are positioned on the same plane.
7. The spliced rectangular shield segment combination structure of claim 1, wherein: a mounting groove is further formed in the splicing surface of one of the shield segments, and a water stop strip is fixedly arranged in the mounting groove.
8. The spliced rectangular shield segment combination structure of claim 7, wherein: the distance between the placing groove and the arc-shaped preformed hole is 50-125mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223179611.6U CN218759919U (en) | 2022-11-30 | 2022-11-30 | Splicing type rectangular shield segment combined structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223179611.6U CN218759919U (en) | 2022-11-30 | 2022-11-30 | Splicing type rectangular shield segment combined structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218759919U true CN218759919U (en) | 2023-03-28 |
Family
ID=85677651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223179611.6U Active CN218759919U (en) | 2022-11-30 | 2022-11-30 | Splicing type rectangular shield segment combined structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218759919U (en) |
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2022
- 2022-11-30 CN CN202223179611.6U patent/CN218759919U/en active Active
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