CN210714713U - Reducing embedded sleeve for shield tunnel segment - Google Patents
Reducing embedded sleeve for shield tunnel segment Download PDFInfo
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- CN210714713U CN210714713U CN201921519346.7U CN201921519346U CN210714713U CN 210714713 U CN210714713 U CN 210714713U CN 201921519346 U CN201921519346 U CN 201921519346U CN 210714713 U CN210714713 U CN 210714713U
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- spacing
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- threaded connection
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Abstract
The utility model is used for shield tunnel section of jurisdiction's reducing pre-buried sleeve, the sleeve main part is through spacing ring flange, spacing linkage segment, the last spacing step between the threaded connection section, it is spacing that spacing step provides the axial simultaneously down, spacing rib prevents to rotate the skew, positional deviation can not appear, positioning accuracy is high, spacing linkage segment diameter is less than spacing ring flange, the threaded connection section, ensure joint strength and durability, engineering construction quality and efficiency have been improved, the weight has been lightened simultaneously, raw and other materials are saved, and the cost is reduced.
Description
Technical Field
The utility model relates to a reducing pre-buried sleeve for shield tunnel section of jurisdiction among city subway shield tunnel building engineering construction technology.
Background
The construction method is characterized in that a segment structure support is usually adopted in the construction of the urban subway shield tunnel construction engineering, segments are generally formed by concrete pouring and forming, and an embedded sleeve is arranged during concrete pouring, so that the post-anchoring workload on the segment lining segment of the interval tunnel during the later installation of equipment is reduced, the damage and damage of the segment lining are reduced, the construction efficiency is improved, the operation environment in the tunnel is improved, and the strength and the durability of the segment are ensured; in the traditional method, a straight-tube-type embedded sleeve is adopted, only the radial anti-rotation ribs are arranged on the lower surface of a flange plate at the end part of the sleeve, an axial limiting structure is not arranged, position deviation is easy to occur in the segment prefabrication and pouring process, the precision of the subsequent equipment installation position is not high, the engineering construction quality is influenced, and the method has the advantages of high raw material consumption, large weight and high cost.
Disclosure of Invention
The utility model aims to solve the technical problem that a can be simultaneously in axial, the footpath upwards spacing pre-buried, prevent that positional deviation from appearing in the prefabricated in-process of section of jurisdiction, installation quality, installation effectiveness are high, reduce cost for the reducing pre-buried sleeve of shield tunnel section of jurisdiction is provided.
The utility model is used for shield tunnel section of jurisdiction's reducing pre-buried sleeve, its characterized in that: the sleeve comprises a sleeve main body, wherein the sleeve main body is composed of a limiting flange plate positioned at the bottom end, a threaded connection section positioned at the upper section and a limiting connection section positioned between the limiting flange plate and the threaded connection section, the threaded connection section is of a cylindrical structure with a hollow inner cavity, an internal thread capable of facilitating later-stage equipment installation is arranged on the inner surface of the cylindrical structure, the limiting connection section is a cylinder, the limiting flange plate is of a disc structure, the outer diameter of the limiting flange plate, the limiting connection section and the threaded connection section are fixedly connected with one another to form the sleeve main body, the outer diameter of the limiting flange plate and the outer diameter of the threaded connection section are both larger than the outer diameter of the limiting connection section, so that a lower limiting step is formed at the joint between the threaded connection section and the limiting connection section;
the cross section of the limiting flange plate is in a regular hexagon shape;
the upper surface of the limiting flange plate is symmetrically provided with a pair of limiting ribs which extend upwards from the upper surface of the limiting flange plate along the axial direction of the sleeve main body;
the thickness and the height of the limiting ribs are consistent with those of the limiting flange;
the outer diameter of the limiting flange plate is larger than that of the threaded connection section;
the limiting flange plate, the limiting connecting section and the threaded connecting section are of an integral structure formed by integrally molding metal materials.
The utility model is used for shield tunnel section of jurisdiction's reducing pre-buried sleeve, the sleeve main part is through spacing ring flange, spacing linkage segment, the last spacing step between the threaded connection section, it is spacing that spacing step provides the axial simultaneously down, spacing rib prevents to rotate the skew, positional deviation can not appear, positioning accuracy is high, spacing linkage segment diameter is less than spacing ring flange, the threaded connection section, ensure joint strength and durability, engineering construction quality and efficiency have been improved, the weight has been lightened simultaneously, raw and other materials are saved, and the cost is reduced.
Drawings
Fig. 1 is a straight cylindrical pre-buried sleeve for a shield tunnel segment in the prior art;
fig. 2 is the embodiment of the utility model provides a reducing pre-buried sleeve for shield tunnel section of jurisdiction.
Detailed Description
As shown in the figure, a reducing pre-buried sleeve main body 1 for shield tunnel segment includes three part structure, namely: the structure of the three parts, namely the limiting flange plate 11 at the bottom end, the threaded connection section 14 at the upper section and the limiting connection section 13 between the limiting flange plate 11 and the threaded connection section 14 can be formed by fixedly connecting split structures in a connection mode such as welding or riveting or can also be an integrated structure formed in one step, in the embodiment, the integrated structure is formed by selecting metal materials through an integrated forming process, and is high in strength and good in durability;
the limiting flange 11 can be of a common disc structure or a polygonal disc structure, so that the limiting reliability is improved, the limiting flange is prevented from rotating and displacing in the concrete pouring process, and the limiting is provided in the subsequent equipment installation process;
threaded connection section 14 is for having the drum structure of cavity inner chamber, and drum structure internal surface sets up the internal thread, passes through bolt and internal thread fit fastening connection during later stage erection equipment, and is reliable and stable.
The limiting connecting section 13 is a cylinder, specifically, the outer diameter of the limiting flange 11 and the outer diameter of the threaded connecting section 14 are both larger than the outer diameter of the limiting connecting section 13, so that a limiting step is formed at the joint between the threaded connecting section 14 and the limiting connecting section 13, a lower limiting step is formed at the joint between the limiting flange 11 and the limiting connecting section 13, and when concrete is poured, the upper limiting step and the lower limiting step simultaneously provide axial limiting, so that axial displacement cannot occur, and the positioning precision is high; after the concrete pouring and forming is completed, the upper limiting step, the lower limiting step and the concrete are matched with each other for limiting, so that the later-stage installation equipment is convenient to connect and operate, and the installation and connection strength is high.
Furthermore, a pair of limiting ribs 12 extending axially and axially from one surface of the limiting flange 11 is symmetrically arranged on the upper surface of the limiting flange, the limiting ribs 12 provide radial limiting without radial displacement, and four limiting ribs distributed in a cross shape can be arranged to provide multi-directional radial limiting; the thickness and the height of the limiting ribs are consistent with those of the limiting flange plate, stress concentration is avoided, stress is balanced, and stability is good.
Still further, set up the external diameter of spacing ring flange for being greater than threaded connection section external diameter, further increase strength, and durability can.
The utility model is used for shield tunnel section of jurisdiction's reducing pre-buried sleeve, the sleeve main part is through spacing ring flange, spacing linkage segment, the last spacing step between the threaded connection section, it is spacing that spacing step provides the axial simultaneously down, spacing rib prevents to rotate the skew, positional deviation can not appear, positioning accuracy is high, spacing linkage segment diameter is less than spacing ring flange, the threaded connection section, ensure joint strength and durability, engineering construction quality and efficiency have been improved, the weight has been lightened simultaneously, raw and other materials are saved, and the cost is reduced.
In order to reduce the positioning error of the pre-buried sleeve on the pipe piece steel die and ensure the requirement of the forming size precision, the utility model provides a pre-buried sleeve mounting structure, which improves the overall mounting precision and the mounting efficiency,
(1) the positioning precision is high: the reducing embedded sleeve is effectively and fixedly installed in the shield segment steel die, so that the position deviation of the shield segment steel die in the segment prefabrication process can be prevented, and the installation quality is ensured;
(2) the installation efficiency is high: the post-anchoring operation after the shield segment is finished is reduced, and the construction efficiency is greatly improved;
(3) the damage to the structure of the tube sheet is reduced, and the structural strength and durability are ensured;
(4) the structure is reasonably optimized, the strength is guaranteed to be unchanged, materials are saved, and the weight of the sleeve is only about 60% of that of a straight-tube type embedded sleeve in the prior art.
Claims (6)
1. The utility model provides a reducing embedded sleeve for shield tunnel section of jurisdiction which characterized in that: including the sleeve main part, the sleeve main part is by the spacing ring flange that is located the bottom, be located the threaded connection section of upper segment, and be located spacing linkage section triplex between spacing ring flange and the threaded connection section, the threaded connection section is for having the drum structure of cavity inner chamber, drum structure internal surface is provided with the internal thread that can be convenient for later stage erection equipment, spacing linkage section is the cylinder, spacing ring flange is the disc structure, spacing ring flange external diameter, spacing linkage section, threaded connection section fixed connection of each other constitutes the sleeve main part, wherein spacing ring flange external diameter, threaded connection section external diameter all is greater than spacing linkage section external diameter, make junction between threaded connection section and the spacing linkage section constitute down spacing step, junction constitutes spacing step on the spacing ring flange.
2. The reducing pre-buried sleeve for the shield tunnel segment of claim 1, wherein: the cross section of the limiting flange plate is in a regular hexagon shape.
3. The reducing pre-buried sleeve for the shield tunnel segment of claim 2, wherein: the upper surface of the limiting flange plate is symmetrically provided with a pair of limiting ribs which extend upwards from the upper surface of the limiting flange plate along the axial direction of the sleeve main body.
4. The reducing pre-buried sleeve for the shield tunnel segment of claim 3, wherein: the thickness and the height of the limiting ribs are consistent with those of the limiting flange plate.
5. The reducing pre-buried sleeve for the shield tunnel segment of claim 1, wherein: the outer diameter of the limiting flange plate is larger than that of the threaded connection section.
6. The reducing pre-buried sleeve for the shield tunnel segment of claim 1, wherein: the limiting flange plate, the limiting connecting section and the threaded connecting section are of an integral structure formed by integrally molding metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519346.7U CN210714713U (en) | 2019-09-12 | 2019-09-12 | Reducing embedded sleeve for shield tunnel segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519346.7U CN210714713U (en) | 2019-09-12 | 2019-09-12 | Reducing embedded sleeve for shield tunnel segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714713U true CN210714713U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921519346.7U Active CN210714713U (en) | 2019-09-12 | 2019-09-12 | Reducing embedded sleeve for shield tunnel segment |
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| Country | Link |
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| CN (1) | CN210714713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523778A (en) * | 2020-12-02 | 2021-03-19 | 广东磐龙交通环境设施工程有限公司 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
| CN112554907A (en) * | 2020-12-02 | 2021-03-26 | 佛山市恒础环保建设工程有限公司 | Pre-buried connecting sleeve in tunnel |
-
2019
- 2019-09-12 CN CN201921519346.7U patent/CN210714713U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523778A (en) * | 2020-12-02 | 2021-03-19 | 广东磐龙交通环境设施工程有限公司 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
| CN112554907A (en) * | 2020-12-02 | 2021-03-26 | 佛山市恒础环保建设工程有限公司 | Pre-buried connecting sleeve in tunnel |
| CN112554907B (en) * | 2020-12-02 | 2023-11-14 | 佛山市恒础环保建设工程有限公司 | Pre-buried connecting sleeve in tunnel |
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