CN209816906U - Prefabricated utility tunnel of straight bolted connection - Google Patents
Prefabricated utility tunnel of straight bolted connection Download PDFInfo
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- CN209816906U CN209816906U CN201920012689.8U CN201920012689U CN209816906U CN 209816906 U CN209816906 U CN 209816906U CN 201920012689 U CN201920012689 U CN 201920012689U CN 209816906 U CN209816906 U CN 209816906U
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- tube coupling
- straight
- coupling
- pipe joint
- vertical
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Abstract
The utility model discloses a prefabricated utility tunnel of straight bolted connection, including vertical coupling, its characterized in that, vertical coupling is provided with left tube coupling and right tube coupling be connected with adjacent other vertical tube couplings, and the left tube coupling of every vertical coupling passes through straight bolted connection with the right tube coupling of its adjacent vertical coupling, a plurality of straight bolt holes of evenly distributed are all seted up to the kneck of left side tube coupling and right tube coupling, the inside of left side tube coupling and right tube coupling also promptly bolt mounting groove has been preset to the tip of the straight bolt hole of left side tube coupling and right tube coupling. The utility model discloses the structure atress is reasonable, can effectively improve the waterproof performance of joint department, and construction convenience has reduced prefabricated utility tunnel's the construction degree of difficulty.
Description
Technical Field
The utility model relates to a utility tunnel especially relates to a prefabricated utility tunnel of straight bolted connection.
Background
The utility tunnel is a municipal infrastructure which can hold various underground pipelines such as water supply and drainage, electric power, communication, gas and the like. The underground comprehensive pipe gallery is laid, so that the number of pipelines is optimized, and the overhauling, maintenance and management of the pipelines are facilitated.
Utility tunnel includes cast-in-place utility tunnel and prefabricated utility tunnel. The prefabricated comprehensive pipe gallery is a comprehensive pipe gallery formed by splicing prefabricated segmented components of a factory on site by adopting a prefabricated splicing construction process, and compared with a cast-in-place comprehensive pipe gallery, the prefabricated spliced comprehensive pipe gallery has the characteristics of good construction quality, short construction period, energy conservation, environmental protection, high benefit and wide application prospect.
The sectional components of the prefabricated comprehensive pipe gallery are prefabricated in a factory and are connected after being installed in place in a construction site, and the integrity, the waterproof performance and the anti-seismic performance of the pipe gallery structure can be influenced by the connection performance of the sectional components. The prefabricated comprehensive pipe gallery has enough bearing capacity and deformability, and meets the requirements of good waterproof performance and convenient construction of the joint.
Current prefabricated utility tunnel according to structural style and connected mode, can be divided into three types with prefabricated utility tunnel:
1. the pipe is provided with longitudinal and transverse joints, a bent bolt pore passage is reserved at the pipe wall, and the pipe is connected by a bent bolt during assembly.
2. The area is indulged, transverse joint, reserves the prestressing force pore canal in the vertical coupling bight of piping lane and transverse joint department, connects through the prestressing steel.
3. The vertical pipe joint of area, at the vertical pipe joint bight of piping lane reservation prestressing force pore canal, connect through the prestressing steel.
Above three kinds of structures and connected mode use the bending bolt to connect and need design the bending bolt pore, and the prestressing steel bar is connected, need use steel strand wires through connection each segmentation component, and the connected mode all is comparatively complicated, and the construction degree of difficulty is big.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a prefabricated utility tunnel of straight bolted connection, this utility tunnel's segmentation component only includes vertical coupling, is connected through vertical coupling and constitutes.
The technical scheme of the utility model is that:
the utility model provides a prefabricated utility tunnel of straight bolted connection, includes vertical coupling, its characterized in that, vertical coupling is provided with left tube coupling and the right tube coupling of being connected with adjacent other vertical tube couplings, and the left tube coupling of every vertical coupling passes through straight bolted connection with the right tube coupling rather than adjacent vertical coupling, a plurality of straight bolt holes of evenly distributed have all been seted up to the kneck of left tube coupling and right tube coupling, the inside of left tube coupling and right tube coupling also promptly the bolt mounting groove has been preset to the tip of the straight bolt hole of left tube coupling and right tube coupling.
The utility model discloses a vertical coupling adopts straight bolted connection's mode to compare the connected mode of prestressing steel among the prior art, need not in the work progress to connect steel strand wires in the reinforcing bar hole, also need not to insert each vertical coupling of long reinforcing bar connection, has simplified the construction procedure.
As preferred, the longitudinal section of vertical coupling is the rectangle frame form, eight straight bolt holes have all been inwards seted up along the outer wall to the kneck of left side tube coupling and right tube coupling, and each straight bolt hole is located the trisection department of four side length direction in the pipe wall cross-section of left tube coupling and right tube coupling respectively so that vertical coupling atress is even, more scientific and reasonable.
As preferred, the utility model discloses a vertical coupling is for guaranteeing the waterproof performance of junction, the annular groove that is used for installing the inflation adhesive tape is offered to left side tube coupling and right tube coupling on the outer wall of kneck, is in during the construction installation water-swelling rubber strip in the annular groove. In addition, the annular groove can be used for positioning the splicing part when the longitudinal pipe joint is spliced, and the splicing difficulty is reduced.
Preferably, the straight bolt of the present invention is a double-headed bolt having threads at both ends. The pretightening force at the two ends of the bolt can be conveniently adjusted.
The utility model discloses the removal of vertical coupling when being convenient for utility tunnel concatenation construction, be provided with the reinforcing bar that is used for hoist and mount on the both sides wall of vertical coupling. In the construction process, the longitudinal pipe joint is lifted by the steel bars to move.
Preferably, one end of the steel bar extends into the pipe wall of the longitudinal pipe joint to form a pre-embedded steel bar.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses a utility tunnel adopts the adjacent vertical coupling of straight bolted connection, and during preprocessing and the utility tunnel concatenation installation of straight bolt hole, construction convenience, easy operation has reduced the construction degree of difficulty, helps improving the construction speed.
2. The utility model discloses a vertical coupling has the annular groove to install the expansion rubber strip in advance at the kneck, has guaranteed the waterproof performance of vertical coupling junction, and the annular groove makes the concatenation location more convenient in addition.
3. The utility model discloses adopt eight straight bolts at a kneck of vertical coupling, the connected mode of this two adjacent vertical couplings is than the connected mode of bolted connection or prestressing steel for the bight at vertical coupling, and utility tunnel's structure atress is scientific and reasonable more, has better mechanical connection performance, and the pretightning force that eight straight bolted connections provided can effectively compress tightly the expansion rubber strip, improves the waterproof performance of joint department. Through experimental research, the utility model discloses a structural style connects 1.78 times of test piece limit bearing capacity for the design bearing capacity, and the structure has great safety margin and good deformability.
4. The utility model discloses a vertical coupling pre-buried reinforcing bar that is used for hoist and mount on the lateral wall, the removal of the vertical coupling of being convenient for helps improving the efficiency of construction.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic illustration of a prior art connection of a prefabricated utility tunnel using longitudinal pipe joints;
FIG. 2 is a schematic diagram of the splicing of the left pipe joint and the right pipe joint of the straight bolt connection prefabricated comprehensive pipe rack of the present invention;
FIG. 3 is a schematic structural view of the left pipe joint or the right pipe joint of the present invention;
FIG. 4 is a schematic structural view of a bolt mounting groove section preset inside the left pipe joint or the right pipe joint of the present invention;
FIG. 5 is a side view of the left tube segment of the longitudinal tube joint of the present invention;
fig. 6 is a cross-sectional view of the left pipe joint of the longitudinal pipe joint of the present invention.
Description of the reference numerals of the invention
1-left pipe section; 2-right pipe section; 3-straight bolt hole; 4-an annular groove; 5-reinforcing steel bars; 6-bolt mounting groove; 7-straight bolt; 8-expanding the rubber strip;
the reference number of the comprehensive pipe gallery in the prior art indicates, 10-prestressed reinforcement mounting holes; 20-steel strand.
Detailed Description
Fig. 1 is a schematic connection diagram of a prefabricated comprehensive pipe gallery using longitudinal pipe joints in the prior art, each longitudinal pipe joint is provided with a prestressed reinforcement mounting hole 10 at the same position, the prestressed reinforcement mounting holes between the longitudinal pipe joints need to be communicated into a straight line, and steel strands need to be embedded in the prestressed reinforcement mounting holes 10 in advance in the splicing construction process of the longitudinal pipe joints so as to facilitate the subsequent insertion of prestressed reinforcements. The construction steps are complicated.
As shown in fig. 2-6, the utility model discloses a prefabricated utility tunnel of straight bolted connection, including vertical coupling, vertical coupling is provided with left tube coupling 1 and right tube coupling 2 of being connected with adjacent other vertical tube couplings, left tube coupling 1 and right tube coupling 2 constitute whole vertical coupling with the main part of vertical coupling, left tube coupling 1 of every vertical coupling and right tube coupling 2 rather than adjacent vertical coupling are through straight bolted connection, a plurality of straight bolt holes 3 of evenly distributed are all seted up to the kneck of left tube coupling 1 and right tube coupling 2, bolt mounting groove 6 has been preset to the inside of left tube coupling 1 and right tube coupling 2 also the tip that is the straight bolt hole of left tube coupling and right tube coupling, bolt mounting groove 6 is convenient for exert the operation of pretightning force to the straight bolt.
As the preferred embodiment, the longitudinal section of the longitudinal pipe joint is rectangular frame-shaped, eight straight bolt holes are inwards formed in the joint of the left pipe joint 1 and the right pipe joint 2 along the outer wall, and each straight bolt hole is respectively positioned at the trisection of the length direction of four sides of the pipe wall section of the left pipe joint 1 and the right pipe joint 2 so that the longitudinal pipe joint is stressed uniformly, and the longitudinal pipe joint is more scientific and reasonable.
As a preferred embodiment, in order to ensure the waterproof performance of the joint, the outer walls of the left pipe joint 1 and the right pipe joint 2 at the joint are provided with an annular groove 4 for installing an expansion rubber strip, as shown in fig. 3, and a water-swelling rubber strip 8 is installed in the annular groove 4 during construction.
As a preferred embodiment, the straight bolt 7 is a double-headed bolt having threads at both ends. The two ends of the bolt are connected with the nuts to fix the longitudinal pipe joint, so that the pretightening force at the two ends of the bolt is convenient to adjust.
As a preferred embodiment, the two side walls of the longitudinal pipe joint are provided with steel bars 5 for hoisting, as shown in fig. 3, one end of each steel bar extends into the pipe wall of the longitudinal pipe joint to form a pre-embedded steel bar, and the longitudinal pipe joint is hoisted by the steel bars to move in the construction process.
The utility model discloses a utility tunnel's construction procedure brief follows:
1. horizontally placing two longitudinal pipe joints to be spliced on the ground, enabling splicing surfaces to face each other and enabling the middle of the two longitudinal pipe joints to be separated by a certain distance;
2. installing the water-swellable rubber strip 8 and 8 straight bolts on the left tube section of a longitudinal tube joint as shown in fig. 2;
3. adjusting the position of the right pipe joint of the other longitudinal pipe joint through a lifting appliance such as a crane and the like through a steel bar 5 to align a straight bolt hole on the right pipe joint with a straight bolt of the left pipe joint in the step 2;
4. further moving the right pipe joint of the other longitudinal pipe joint to enable the straight bolt to penetrate through the straight bolt hole of the right pipe joint and ensure that the expansion rubber strip is correctly installed until the two longitudinal pipe joints are tightly attached together;
5. and screwing the nuts at the two ends of the straight bolt, and applying required pretightening force to complete the splicing of the two longitudinal pipe joints.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (6)
1. The utility model provides a prefabricated utility tunnel of straight bolted connection, includes vertical coupling, its characterized in that, vertical coupling is provided with left tube coupling and the right tube coupling of being connected with adjacent other vertical tube couplings, and the left tube coupling of every vertical coupling passes through straight bolted connection with the right tube coupling rather than adjacent vertical coupling, a plurality of straight bolt holes of evenly distributed have all been seted up to the kneck of left tube coupling and right tube coupling, the inside of left tube coupling and right tube coupling also promptly the bolt mounting groove has been preset to the tip of the straight bolt hole of left tube coupling and right tube coupling.
2. The straight bolt connection prefabricated comprehensive pipe gallery according to claim 1, wherein the longitudinal section of the longitudinal pipe joint is rectangular frame-shaped, eight straight bolt holes are formed inwards in the joint of the left pipe joint and the right pipe joint along the outer wall, and each straight bolt hole is respectively positioned at three points in the length direction of four sides of the pipe wall section of the left pipe joint and the right pipe joint.
3. The straight bolt connection prefabricated comprehensive pipe gallery according to claim 1, wherein the outer walls of the left pipe joint and the right pipe joint at the interface are provided with annular grooves for installing expansion rubber strips.
4. The straight bolt connection prefabricated comprehensive pipe gallery according to claim 1, wherein the straight bolt is a double-headed bolt with threads at both ends.
5. The straight bolt connection prefabricated comprehensive pipe gallery according to any one of claims 1 to 4, wherein reinforcing steel bars for hoisting are arranged on two side walls of the longitudinal pipe joints.
6. The prefabricated comprehensive pipe gallery for straight bolt connection according to claim 5, wherein one end of the steel bar extends into the pipe wall of the longitudinal pipe joint to form an embedded steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012689.8U CN209816906U (en) | 2019-01-04 | 2019-01-04 | Prefabricated utility tunnel of straight bolted connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012689.8U CN209816906U (en) | 2019-01-04 | 2019-01-04 | Prefabricated utility tunnel of straight bolted connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209816906U true CN209816906U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920012689.8U Active CN209816906U (en) | 2019-01-04 | 2019-01-04 | Prefabricated utility tunnel of straight bolted connection |
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| Country | Link |
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| CN (1) | CN209816906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155555A (en) * | 2020-01-23 | 2021-07-23 | 天津市市政工程设计研究院 | Manufacturing method of magnesium alloy model for simulating concrete pipe gallery |
-
2019
- 2019-01-04 CN CN201920012689.8U patent/CN209816906U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155555A (en) * | 2020-01-23 | 2021-07-23 | 天津市市政工程设计研究院 | Manufacturing method of magnesium alloy model for simulating concrete pipe gallery |
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Address after: No.97 Liuhua Road, Liwan District, Guangzhou City, Guangdong Province 510010 Patentee after: Guangdong Architectural Design and Research Institute Co., Ltd Address before: Guangzhou City, Guangdong province 510010 Liuhua Road No. 97 Patentee before: ARCHITECTURAL DESIGN Research Institute OF GUANGDONG PROVINCE |