CN214403580U - Embedded part for forming reserved hole of shield segment - Google Patents
Embedded part for forming reserved hole of shield segment Download PDFInfo
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- CN214403580U CN214403580U CN202120450339.7U CN202120450339U CN214403580U CN 214403580 U CN214403580 U CN 214403580U CN 202120450339 U CN202120450339 U CN 202120450339U CN 214403580 U CN214403580 U CN 214403580U
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Abstract
The utility model relates to an embedded part for forming shield constructs reservation hole of section of jurisdiction, include: the fixing section is detachably fixed in a steel mould for pouring the duct piece; the pre-embedded section is connected with the fixed section in a breakable manner and protrudes out of the inner arc surface of the steel die; after the duct piece is poured, the embedded section is embedded in the duct piece, the embedded section is separated from the fixed section through fracture when the duct piece is demoulded, and a reserved hole is formed by taking out the embedded section in the duct piece. The utility model discloses a fracture department that the junction design of pre-buried section and canned paragraph can be cracked, pre-buried section breaks off in fracture department with the canned paragraph during the section of jurisdiction drawing of patterns, avoids pre-buried section and canned paragraph to connect always and the inconsistent and influence the condition of reservation hole shaping quality of atress direction between them.
Description
Technical Field
The utility model relates to a construction field indicates a built-in fitting for forming shield constructs reservation hole of section of jurisdiction especially.
Background
The shield segment is a main assembly component for shield construction, is the outermost barrier of the tunnel and plays a role in resisting soil layer pressure, underground water pressure and some special loads. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and the waterproof performance and the durability of the tunnel are affected.
In the prior art, concrete is poured into a steel die, and a formed duct piece is lifted upwards by hoisting equipment to be demoulded. When the shield segment is poured, a nylon rod is adopted to reserve a hole on the inner cambered surface of the segment. During electromechanical installation of later stage, adopt the crab-bolt to insert to establish and be fixed in this hole of reserving, utilize the crab-bolt to erect the support frame of electromechanical installation usefulness and be fixed in the section of jurisdiction.
However, when the nylon rod is used as an embedded part, the nylon rod is arranged centripetally according to the inner arc surface of the steel die, the duct piece moves upwards in the vertical direction to be demolded with the steel die, demolding force is inconsistent, the position of the embedded part is easy to deviate, and the molding quality of the reserved hole is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide an embedded part for forming shield constructs the preformed hole of section of jurisdiction, solve the drawing of patterns power inconsistent among the prior art, influence the shaping quality's of preformed hole problem.
The technical scheme for realizing the purpose is as follows:
the utility model provides an embedded part for forming shield constructs reservation hole of section of jurisdiction, include:
the fixing section is detachably fixed in a steel mould for pouring the duct piece;
the pre-buried section is connected to the fixed section in a breakable manner and protrudes out of the inner arc surface of the steel die; after the pipe piece is poured, the embedded section is embedded in the pipe piece, the embedded section is separated from the fixed section through fracture when the pipe piece is demoulded, and a reserved hole is formed by taking out the embedded section in the pipe piece.
The utility model is further improved in the embedded part for forming the reserved hole of the shield segment,
at least one anti-back ring is fixedly sleeved on the embedded section, and the edge of the anti-back ring is in a hexagonal shape.
The utility model is further improved in the embedded part for forming the reserved hole of the shield segment,
the fixed section is formed with the external screw thread, the intrados of confession concreting of steel mould is formed with the mounting groove, the mounting groove be formed with the adaptation in the internal thread of the external screw thread of fixed section, the fixed section insert locate in the mounting groove and with the steel mould passes through threaded connection.
The utility model is further improved in the embedded part for forming the reserved hole of the shield segment,
the fixed section is perpendicular to the tangent plane of the intrados of the steel die.
The utility model is further improved in the embedded part for forming the reserved hole of the shield segment,
the fixed section is sleeved and fixed with a flange, and the flange is flush with the inner arc surface of the steel die.
The utility model is further improved in the embedded part for forming the reserved hole of the shield segment,
a hexagonal jack is formed in the fixing section, and a tool is inserted into the jack to separate the fixing section from the steel die.
The utility model discloses still provide a construction method for forming the built-in fitting in shield constructs reservation hole of section of jurisdiction, including following step:
fixing the fixed section in a steel mould for pouring the duct piece in a detachable mode, wherein the embedded section protrudes out of the inner arc surface of the steel mould;
pouring a pipe piece on the inner arc surface of the steel die, wherein the embedded section is embedded in the pipe piece;
demolding the duct piece, and separating the embedded section from the fixed section by breaking;
and taking out the embedded section in the pipe sheet to form a reserved hole.
The construction method of the embedded part for forming the reserved hole of the shield segment of the utility model is further improved,
the fixing section is provided with external threads, the inner arc surface of the steel die for pouring concrete is provided with an installation groove, and the installation groove is provided with internal threads matched with the external threads of the fixing section;
with the canned paragraph with detachable mode be fixed in the steel mould that supplies to pour the section of jurisdiction, include:
inserting the fixing section into the mounting groove of the steel die and enabling the fixing section to be perpendicular to the section of the inner arc surface of the steel die;
the fixing section is in threaded connection with the steel die.
The construction method of the embedded part for forming the reserved hole of the shield segment of the utility model is further improved,
the fixed section is sleeved and fixed with a flange, and the flange is flush with the inner arc surface of the steel die.
The construction method of the embedded part for forming the reserved hole of the shield segment of the utility model is further improved,
a hexagonal jack is formed in the fixed section;
and a tool is inserted into the jack to separate the fixing section from the steel die.
The utility model is used for form the beneficial effect of the built-in fitting in reservation hole of shield structure section of jurisdiction:
the utility model discloses a fracture department that the junction design of pre-buried section and canned paragraph can break, pre-buried section breaks with the canned paragraph at fracture department during the section of jurisdiction drawing of patterns, pre-buried section and canned paragraph mutual separation pre-buried section are buried underground in the section of jurisdiction, and the canned paragraph is then stayed in the steel mould, avoid pre-buried section and canned paragraph direct connection and stress direction between them inconsistent and influence the condition of reserving hole shaping quality, thereby solved the section of jurisdiction according to vertical direction rebound with the steel mould drawing of patterns, and the position of the built-in fitting that the drawing of patterns power inconsistent leads to squints easily, influence the shaping quality's of reserving hole problem.
The anchoring force of the embedded section and the concrete is increased through the retaining ring, and the embedded part is prevented from being integrally pulled out when the segment is demoulded and lifted. The edge of the anti-return ring is in a hexagon shape which is suitable for tools for installation and disassembly, and the anti-return ring can be used for mechanical installation and disassembly of embedded parts and is convenient to operate.
After the drawing of patterns fracture, the canned paragraph is stayed in the steel mould, through at the hexagonal shape's of canned paragraph design jack, through adopting the instrument to insert locate in the jack with canned paragraph and steel mould separation, conveniently demolish the canned paragraph.
Drawings
Figure 1 is the utility model discloses a schematic diagram for forming the construction status of the built-in fitting of shield structure reservation hole of section of jurisdiction.
Fig. 2 is the utility model discloses a spatial structure sketch map for forming the built-in fitting in shield constructs the reservation hole of section of jurisdiction.
Figure 3 is the utility model discloses a front view for forming the built-in fitting of shield structure reservation hole of section of jurisdiction.
Figure 4 is a bottom view of the utility model discloses an embedded part for forming shield constructs the reservation hole of section of jurisdiction.
Figure 5 is the utility model discloses a support that the electromechanical installation of installation was used is being installed to the reservation hole for forming the shield constructs the section of jurisdiction.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Fig. 1 is a schematic diagram of the construction state of the embedded part for forming the reserved hole of the shield segment. Fig. 2 shows the utility model discloses an embedded part spatial structure sketch map for forming shield constructs the reservation hole of section of jurisdiction. With reference to fig. 1 and 2, the utility model discloses an embedded part for forming shield constructs reservation hole of section of jurisdiction includes:
the fixing section 10 is detachably fixed in a steel die 30 for pouring the duct piece 40;
the pre-embedded section 20 is connected to the fixed section 10 in a breakable manner, and the pre-embedded section 20 protrudes out of the inner arc surface of the steel die 30; treat section of jurisdiction 40 and pour the back, pre-buried section 20 is buried underground in section of jurisdiction 40, and pre-buried section 20 and fixed segment 10 are through the fracture separation when the section of jurisdiction 40 drawing of patterns, and form the reservation hole through taking out the pre-buried section 20 in the section of jurisdiction 40.
Specifically, pre-buried section 20 and the junction design of canned paragraph 10 are the fracture department that can break, thereby pre-buried section 20 breaks at the fracture department with canned paragraph 10 when section of jurisdiction 40 drawing of patterns, pre-buried section 20 and canned paragraph 10 mutual separation pre-buried section 20 bury underground in the pipe, and canned paragraph 10 is then stayed in the steel mould, avoid pre-buried section 20 and canned paragraph 10 interconnect and the inconsistent and influence the condition of reserved hole shaping quality of atress direction between them, thereby solved the section of jurisdiction according to vertical direction rebound with the steel mould drawing of patterns, and the position of the built-in fitting that the drawing of patterns power inconsistent leads to squints easily, influence the shaping quality's of reserved hole problem.
As a preferred embodiment of the utility model for a pre-buried fitting for forming the preformed hole of shield structure section of jurisdiction, refer to fig. 3 for the utility model is used for forming the main view of the pre-buried fitting in the preformed hole of shield structure section of jurisdiction. Figure 4 is a bottom view of the utility model discloses an embedded part for forming shield constructs the reservation hole of section of jurisdiction. As shown in fig. 1 to 4, at least one anti-back ring 50 is fixedly sleeved on the pre-buried section 20, and the edge of the anti-back ring 50 is hexagonal.
Specifically, the anchoring force of the embedded section 20 and the concrete is increased through the retaining ring 50, and the embedded part is prevented from being integrally pulled out when the segment is demoulded and lifted. The edge of the anti-backing ring 50 is in a hexagon shape which is suitable for tools for installation and disassembly, can be used for mechanical installation and disassembly of embedded parts, and is convenient to operate.
Further, the anti-slip ring 50 may have other shapes, and the requirement of increasing the anchoring force between the embedded section 20 and the concrete is required to be satisfied.
As the utility model discloses a preferred embodiment for forming the built-in fitting in shield constructs reservation hole of section of jurisdiction, canned paragraph 10 is formed with the external screw thread, and the intrados face that supplies concreting of steel mould 30 is formed with the mounting groove, and the mounting groove is formed with the internal thread that adapts to in the external screw thread of canned paragraph 10, and canned paragraph 10 is inserted and is located in the mounting groove and pass through threaded connection with steel mould 30. Through threaded connection, easy to assemble and dismantle.
Further, the fixing section 10 and the steel mold 30 may be fixed by other detachable methods. For example, the fixing section 10 is inserted into the steel mold 30 and then fixed with a bolt, which facilitates installation and disassembly.
As the utility model discloses a preferred embodiment for forming the built-in fitting in shield constructs the reservation hole of section of jurisdiction, the tangent plane of the intrados face of canned paragraph 10 perpendicular to steel mould 30 satisfies the installation requirement.
Specifically, the intrados of steel mould leaves the mounting groove that has the internal thread, and before the section of jurisdiction is pour with the fixed section of built-in fitting insert locate the mounting groove in and carry out threaded connection through the mode of screwing to be fixed in the steel mould. The tangent plane mutually perpendicular of the intrados of fixed segment and steel mould ensures the position accuracy of reservation hole.
As the utility model discloses a preferred embodiment for forming the built-in fitting in shield constructs reservation hole of section of jurisdiction, the 10 covers of canned paragraph are established and are fixed with ring flange 60, and the intrados of ring flange 60 and steel mould 30 flushes, and ring flange 60 plays the marking action when installing, is favorable to guaranteeing canned paragraph 10's installation quality.
As the utility model discloses a preferred embodiment for forming the built-in fitting in shield constructs reservation hole of section of jurisdiction is formed with the jack 11 of hexagonal form in the canned paragraph 10, through adopting the instrument to insert locate in the jack in order to separate canned paragraph 10 and steel mould 30, conveniently demolish canned paragraph 10. Specifically, the fixed section 10 and the embedded section 20 are both cylinders, so that cylindrical reserved holes are conveniently formed.
The utility model also provides a construction method for forming the built-in fitting in the reservation hole of shield constructs section of jurisdiction, including following step:
the fixing section 10 is detachably fixed in a steel die 30 for pouring the duct piece 40, and the embedded section 20 protrudes out of the inner arc surface of the steel die 30;
pouring a duct piece 40 on the inner arc surface of the steel die 30, and embedding the embedded section 20 in the duct piece 40;
demolding the duct piece 40, and breaking and separating the embedded section 20 and the fixed section 10;
and taking out the embedded section 20 in the pipe piece 40 to form a reserved hole.
As a preferred embodiment of the construction method of the pre-embedded part for forming the reserved hole of the shield segment of the present invention, the fixed segment 10 is formed with an external thread, the inner arc surface of the steel mold 30 for pouring concrete is formed with a mounting groove, and the mounting groove is formed with an internal thread adapted to the external thread of the fixed segment 10; fixing the fixing segment 10 in a detachable manner in a steel mold 30 for casting a duct piece 40, comprising: inserting the fixing section 10 into the mounting groove of the steel die 30 and perpendicular to the tangent plane of the intrados of the steel die 30; the fixed section 10 and the steel die 30 are screwed.
As the utility model discloses a construction method for forming the built-in fitting in shield constructs the reservation hole of section of jurisdiction's a preferred embodiment, the canned paragraph 10 covers are established and are fixed with ring flange 60, and the intrados face of ring flange 60 and steel mould 30 flushes.
As a preferred embodiment of the construction method of the embedded part for forming the reserved hole of the shield segment of the present invention, a hexagonal insertion hole is formed in the fixed section 10; a tool is inserted into the insertion hole to separate the fixing section 10 and the steel mold 30.
Fig. 5 is a schematic diagram of the bracket for mounting the electromechanical installation of the reserved hole for forming the shield segment according to the present invention. Referring to fig. 1 to 5, the following describes a specific construction method of the present invention:
the steel die 30 is used for casting the duct piece 40, and concrete can be cast after the embedded part is installed and other processes before casting are finished. The concrete falls from above the steel die 30 into the steel die 30 for casting, and finally the duct piece 40 is formed.
After the duct piece 40 is poured and reaches the strength required by design, demolding and hoisting are carried out, the fixed section 10 and the embedded section 20 of the embedded part are automatically disconnected from the fracture part through the dead weight of the duct piece 40 and the steel die 30, and therefore the embedded section is separated from the fixed section.
Thereby hoisting up segment 40 through hoisting equipment and separating with steel mould 30, the pre-buried section 20 of built-in fitting is pre-buried in segment 40 this moment, and the fixed segment 10 is stayed in steel mould 30 and is treated the later stage and clear away.
The pre-buried section 20 is damaged from the duct piece 40 by adopting an impact drill and is cleaned and taken out, an empty reserved hole is formed in the position of the original pre-buried section on the duct piece 40 at the moment, and the taken-out pre-buried section is scrapped to lose efficacy. The fixing segment 10 is removed from the steel mould using a tool.
And a connecting piece 70 (a chemical anchor bolt, an expansion bolt) and the like are inserted and fixed in the reserved hole for later-stage erection of the fixing bracket 71. The embedded part reserves reserved holes for later electromechanical installation. When the embedded part is taken out, the embedded part is only damaged, and the concrete structure of the duct piece is not damaged, so that the quality of the reserved hole and the duct piece can be ensured.
The utility model is used for form the beneficial effect of the built-in fitting in reservation hole of shield structure section of jurisdiction does:
the utility model discloses a fracture department that the junction design of pre-buried section and canned paragraph can break, pre-buried section breaks with the canned paragraph at fracture department during the section of jurisdiction drawing of patterns, pre-buried section and canned paragraph mutual separation pre-buried section are buried underground in the section of jurisdiction, and the canned paragraph is then stayed in the steel mould, avoid pre-buried section and canned paragraph direct connection and stress direction between them inconsistent and influence the condition of reserving hole shaping quality, thereby solved the section of jurisdiction according to vertical direction rebound with the steel mould drawing of patterns, and the position of the built-in fitting that the drawing of patterns power inconsistent leads to squints easily, influence the shaping quality's of reserving hole problem.
The anchoring force of the embedded section and the concrete is increased through the retaining ring, and the embedded part is prevented from being integrally pulled out when the segment is demoulded and lifted. The edge of the anti-return ring is in a hexagon shape which is suitable for tools for installation and disassembly, and the anti-return ring can be used for mechanical installation and disassembly of embedded parts and is convenient to operate.
After the drawing of patterns fracture, the canned paragraph is stayed in the steel mould, through at the hexagonal shape's of canned paragraph design jack, through adopting the instrument to insert locate in the jack with canned paragraph and steel mould separation, conveniently demolish the canned paragraph.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (6)
1. An embedment for forming a reserved hole of a shield segment, comprising:
the fixing section is detachably fixed in a steel mould for pouring the duct piece;
the pre-buried section is connected to the fixed section in a breakable manner and protrudes out of the inner arc surface of the steel die; after the pipe piece is poured, the embedded section is embedded in the pipe piece, the embedded section is separated from the fixed section through fracture when the pipe piece is demoulded, and a reserved hole is formed by taking out the embedded section in the pipe piece.
2. The embedment for forming a reserved hole of a shield segment of claim 1,
at least one anti-back ring is fixedly sleeved on the embedded section, and the edge of the anti-back ring is in a hexagonal shape.
3. The embedment for forming a reserved hole of a shield segment of claim 1,
the fixed section is formed with the external screw thread, the intrados of confession concreting of steel mould is formed with the mounting groove, the mounting groove be formed with the adaptation in the internal thread of the external screw thread of fixed section, the fixed section insert locate in the mounting groove and with the steel mould passes through threaded connection.
4. The embedment for forming a reserved hole of a shield segment of claim 1,
the fixed section is perpendicular to the tangent plane of the intrados of the steel die.
5. The embedment for forming a reserved hole of a shield segment of claim 1,
the fixed section is sleeved and fixed with a flange, and the flange is flush with the inner arc surface of the steel die.
6. The embedment for forming a reserved hole of a shield segment of claim 1,
a hexagonal jack is formed in the fixing section, and a tool is inserted into the jack to separate the fixing section from the steel die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120450339.7U CN214403580U (en) | 2021-03-02 | 2021-03-02 | Embedded part for forming reserved hole of shield segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120450339.7U CN214403580U (en) | 2021-03-02 | 2021-03-02 | Embedded part for forming reserved hole of shield segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214403580U true CN214403580U (en) | 2021-10-15 |
Family
ID=78027128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120450339.7U Active CN214403580U (en) | 2021-03-02 | 2021-03-02 | Embedded part for forming reserved hole of shield segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214403580U (en) |
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2021
- 2021-03-02 CN CN202120450339.7U patent/CN214403580U/en active Active
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