CN112983474B - Shield segment convenient for fixing channel - Google Patents
Shield segment convenient for fixing channel Download PDFInfo
- Publication number
- CN112983474B CN112983474B CN202110345083.8A CN202110345083A CN112983474B CN 112983474 B CN112983474 B CN 112983474B CN 202110345083 A CN202110345083 A CN 202110345083A CN 112983474 B CN112983474 B CN 112983474B
- Authority
- CN
- China
- Prior art keywords
- channel
- pressing plate
- groove
- segment
- connecting seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of tunnel shield segments, in particular to a shield segment convenient for fixing a channel, which comprises the following components: shield segments; connecting sleeves are pre-buried on the upper half part of the shield segment at intervals; the connecting seat is integrally formed with a connecting rod on the upper surface, and the connecting rod is in threaded connection with the connecting sleeve; the lower surface of the connecting seat is concavely provided with a fixing groove; the lower wall of the channel is provided with an opening; the channel is accommodated in the fixed groove; the pressing plate is connected to the lower end of the connecting seat, and the upper surface of the pressing plate is abutted to the channel. The embedded connecting sleeve, the design connecting seat and the pressing plate can be used for conveniently fixing the channel on the shield segment, and meanwhile, the subsequent maintenance and replacement of the channel are convenient. In addition, the limiting strip designed on the pressing plate can tightly attach the side wall of the channel on the inner wall of the fixed groove, so that the channel is prevented from moving, and the stability and the firmness of channel fixation can be improved.
Description
Technical Field
The invention relates to the technical field of tunnel shield segments, in particular to a shield segment convenient for fixing a channel.
Background
The shield segments are permanent lining structures of the tunnel by a shield method, are the innermost barrier of the tunnel, bear the functions of resisting soil layer pressure, underground water pressure and some special loads, and are formed by splicing 4-5 arc shield segments, and adjacent arc shield segments are connected together by segment connecting bolts. In the construction process of the tunnel, the channels are required to be fixed on the shield segment, most of the channels are C-shaped channels with teeth in hot rolling, the channels are widely applied to occasions such as rail transit, high-speed rails and buildings, and various structural bodies can be installed by adopting T-shaped bolts matched with the channels, so that the T-shaped bolts can replace building connecting members of traditional anchor bolts. The friction force between the T-shaped bolt and the channel can be increased due to the arrangement of the teeth on the channel, so that the T-shaped bolt is prevented from being displaced in the installation and use processes.
In the prior art, the fixing of the channels is mainly divided into an embedded channel and an externally hung channel, wherein the embedded channel is used for embedding and pouring the corresponding channel into the shield segment when the shield segment is poured, and the externally hung channel is used for fixing the corresponding channel by using bolts and the like after the shield segment is paved. The embedded channel is embedded in the shield segment, so that the embedded channel is troublesome to maintain in the subsequent use process, and can not be basically replaced once damaged; the external hanging channel can be additionally installed and fixed after the shield segment is installed, so that the external hanging channel can be conveniently maintained and can be replaced according to actual use conditions. However, in the prior art, when the externally hung channel is installed, a hole is formed at one end of the lifting lug, the lifting lug is penetrated on the pipe piece connecting bolt by the hole, and then the nut on the pipe piece connecting bolt is screwed, so that the lifting lug can be fixed, and adjacent arc shield pipe pieces can be connected together; the channel is connected with the other end of the lifting lug by a bolt and a pressing piece. However, this way of installing the channel also has a problem: if the lifting lug is fixed when the nut is fastened, the lifting lug at different positions needs to be inclined at different angles so as to correspond to the arc-shaped channel, and the operation is troublesome; if the lifting lug is not fixed when the nut is fastened, the fastened nut needs to be unscrewed, and then the lifting lug penetrates through the pipe piece connecting bolt, so that the connection firmness between the arc shield pipe pieces can be influenced, and meanwhile, the construction progress can be influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a shield segment which is convenient for fixing a channel, so as to solve the problem existing in the prior art when the channel is fixed by using lifting lugs.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a shield segment for facilitating fixation of a channel, comprising:
the shield segment is formed by splicing a plurality of segment bodies, and adjacent segment bodies are connected through segment connecting bolts; connecting sleeves are pre-buried on the upper half part of the shield segment at intervals;
the upper surface of the connecting seat is integrally formed with a vertical upward connecting rod which is in threaded connection with the connecting sleeve; the lower surface of the connecting seat is concavely provided with a fixing groove;
the groove is arc-shaped, and an opening is formed in the lower wall of the groove; the channel is accommodated in the fixed groove;
the pressing plate is connected to the lower end of the connecting seat through bolts, and the upper surface of the pressing plate abuts against the channel.
Preferably, the connecting sleeve and the connecting rod are provided with internal threads and external threads which are matched with each other.
Preferably, the upper surface of the pressing plate is integrally formed with a limit strip with a trapezoid cross section, and when the upper surface of the pressing plate is abutted on the channel, the limit strip is inserted into the channel from the opening.
Preferably, the upper surface of the limit bar is smaller than the lower surface, and the width of the lower surface of the limit bar is larger than the width of the opening of the lower wall of the channel.
Preferably, threaded connecting grooves are formed in two sides of the fixing groove on the lower surface of the connecting seat at intervals; and the pressing plate is provided with a connecting hole corresponding to the position of the threaded connecting groove.
Compared with the prior art, the invention has the following beneficial effects:
the embedded connecting sleeve, the design connecting seat and the pressing plate can fix the channel on the channel more conveniently, and simultaneously, the channel is convenient to maintain and replace later. In addition, the limiting strip designed on the pressing plate can tightly attach the side wall of the channel on the inner wall of the fixed groove, so that the channel is prevented from moving, and the stability and the firmness of channel fixation can be improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the structure of the tablet according to the present invention;
100. shield segments; 101. a segment body; 102. a connecting sleeve; 200. a connecting seat; 201. a connecting rod; 202. a fixing groove; 203. a threaded connection groove; 300. a channel; 301. an opening; 400. a pressing plate; 401. a limit bar; 402. and a connection hole.
Detailed Description
The following description of the embodiments of the present invention will be apparent from, and is intended to provide a thorough description of, the embodiments of the present invention, and not a complete description of, the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Examples
A shield segment for facilitating fixation of a channel, comprising:
the shield segment 100, the shield segment 100 is formed by splicing a plurality of segment bodies 101, and adjacent segment bodies 101 are connected through segment connecting bolts (not shown in the drawing); the upper half part of the shield segment 100 is pre-buried with a connecting sleeve 102 at intervals; the segment connecting bolts are arc bolts; through holes with arc-shaped trend are formed in the corresponding duct piece bodies 101 so that duct piece connecting bolts penetrate through the through holes in the adjacent 2 duct piece bodies 101 and then are locked by nuts, and the adjacent 2 duct piece bodies 101 are connected together, which is the prior art. In addition, the connection sleeve 102 has a hollow cylindrical structure with an upper end sealing a lower end and a lower opening, and a horizontal limiting plate may be provided along a radial direction of the connection sleeve 102 in order to prevent the connection sleeve 102 from being separated from the shield segment 100.
The connecting seat 200, the upper surface integrated into one piece of connecting seat 200 has a vertically upwards connecting rod 201, and connecting rod 201 threaded connection is in connecting sleeve 102, and the mode of realization is: the connecting sleeve 102 and the connecting rod 201 are provided with internal threads and external threads which are matched with each other; the lower surface of the connecting seat 200 is concavely provided with a fixing groove 202;
the channel 300, the channel 300 takes the shape of an arc, there is an opening 301 on the lower wall of the channel 300; the channel 300 is accommodated in the fixed slot 202;
the pressing plate 400 is connected to the lower end of the connecting seat 200 by bolts, and the upper surface of the pressing plate 400 is abutted against the channel 300; the upper surface of the pressing plate 400 is integrally formed with a limit bar 401 with a trapezoid cross section, the width of the upper surface of the limit bar 401 is smaller than that of the lower surface, and the width of the lower surface of the limit bar 401 is larger than that of the opening 301 of the lower wall of the channel 300; when the upper surface of the pressing plate 400 is abutted on the channel 300, the limit strip 401 is inserted into the channel 300 from the opening 301;
in addition, in the present embodiment, the two sides of the fixing groove 202 on the lower surface of the connection seat 200 are spaced apart to provide a screw connection groove 203; the pressing plate 400 is provided with a connecting hole 402 corresponding to the position of the screw connecting groove 203.
When the duct piece body 101 is manufactured, the connecting sleeve 102 is embedded. When the channel 300 is fixed, the connecting rod 201 is screwed into the connecting sleeve 102, and as can be seen from fig. 4, the connecting seat 200 is rectangular, so that screwing or unscrewing of the connecting rod 201 is facilitated. When the channel 300 is fixed, the channel 300 is placed in the fixed groove 202 at the corresponding position, the limit strip 401 on the pressing plate 400 is inserted into the channel 300 from the opening 301, then is connected into the threaded connecting groove 203 by using the bolt penetrating connecting hole 402, and in the process of screwing the bolt, the limit strip 401 slowly enters the channel 300, and the cross section of the lower surface of the limit strip 401 is larger than that of the opening 301, so that the limit strip 401 extrudes the channel 300 at the opening towards two sides, the channel 300 is tightly attached to the inner wall of the fixed groove 202, the phenomenon that the channel 300 moves is prevented, and the stability and the firmness of the fixation of the channel 300 are improved.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. The utility model provides a shield constructs section of jurisdiction of convenient fixed channel which characterized in that includes:
the shield segment is formed by splicing a plurality of segment bodies, and adjacent segment bodies are connected through segment connecting bolts; connecting sleeves are pre-buried on the upper half part of the shield segment at intervals;
the upper surface of the connecting seat is integrally formed with a vertical upward connecting rod which is in threaded connection with the connecting sleeve; the lower surface of the connecting seat is concavely provided with a fixing groove;
the groove is arc-shaped, and an opening is formed in the lower wall of the groove; the channel is accommodated in the fixed groove;
the pressing plate is connected to the lower end of the connecting seat by utilizing a bolt, and the upper surface of the pressing plate is abutted against the channel;
the connecting sleeve and the connecting rod are provided with internal threads and external threads which are matched with each other;
the upper surface of the pressing plate is integrally formed with a limit strip with a trapezoid cross section, and when the upper surface of the pressing plate is abutted against the channel, the limit strip is inserted into the channel from the opening;
the upper surface of the limit strip is smaller than the lower surface, and the width of the lower surface of the limit strip is larger than the width of the opening of the lower wall of the channel;
screw thread connecting grooves are formed in two sides of the fixing groove on the lower surface of the connecting seat at intervals; and the pressing plate is provided with a connecting hole corresponding to the position of the threaded connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345083.8A CN112983474B (en) | 2021-03-31 | 2021-03-31 | Shield segment convenient for fixing channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345083.8A CN112983474B (en) | 2021-03-31 | 2021-03-31 | Shield segment convenient for fixing channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112983474A CN112983474A (en) | 2021-06-18 |
| CN112983474B true CN112983474B (en) | 2023-10-20 |
Family
ID=76338622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110345083.8A Active CN112983474B (en) | 2021-03-31 | 2021-03-31 | Shield segment convenient for fixing channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983474B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE752474A (en) * | 1970-01-22 | 1970-12-01 | Commercial Shearing | COATING AND SUPPORT STRUCTURE WITH INTERCHANGE, WITHOUT BOLTS, INTENDED FOR UNDERGROUND EXCAVATIONS |
| CN207177917U (en) * | 2017-05-27 | 2018-04-03 | 广州地铁集团有限公司 | A kind of duct pieces of shield tunnel provided with plug-in conduit |
| CN109458221A (en) * | 2018-12-26 | 2019-03-12 | 彭健 | A kind of hangers victory assembling device and installation method |
| CN211655606U (en) * | 2019-12-18 | 2020-10-09 | 江苏安荣电气设备有限公司 | Reinforced external channel |
-
2021
- 2021-03-31 CN CN202110345083.8A patent/CN112983474B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE752474A (en) * | 1970-01-22 | 1970-12-01 | Commercial Shearing | COATING AND SUPPORT STRUCTURE WITH INTERCHANGE, WITHOUT BOLTS, INTENDED FOR UNDERGROUND EXCAVATIONS |
| CN207177917U (en) * | 2017-05-27 | 2018-04-03 | 广州地铁集团有限公司 | A kind of duct pieces of shield tunnel provided with plug-in conduit |
| CN109458221A (en) * | 2018-12-26 | 2019-03-12 | 彭健 | A kind of hangers victory assembling device and installation method |
| CN211655606U (en) * | 2019-12-18 | 2020-10-09 | 江苏安荣电气设备有限公司 | Reinforced external channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112983474A (en) | 2021-06-18 |
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