CN216043744U - Assembled frame tunnel joint structure - Google Patents
Assembled frame tunnel joint structure Download PDFInfo
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- CN216043744U CN216043744U CN202122570144.9U CN202122570144U CN216043744U CN 216043744 U CN216043744 U CN 216043744U CN 202122570144 U CN202122570144 U CN 202122570144U CN 216043744 U CN216043744 U CN 216043744U
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Abstract
The utility model provides an assembled frame tunnel joint structure, joint structure include upper portion prefab A, upper portion prefab B, lower part prefab C, lower part prefab D, stagnant water steel sheet, rubber waterstop, vertical spliced pole and horizontal spliced pole, through horizontal spliced pole, vertical spliced pole with upper portion prefab A, upper portion prefab B, lower part prefab C, lower part prefab D correspond the connection, increased the intensity that the tunnel connects, set up rubber waterstop, stagnant water steel sheet through the organic, improve waterproof nature. The construction method of the joint structure comprises the steps of firstly pouring upper prefabricated parts and lower prefabricated parts, then correspondingly assembling the lower prefabricated parts, then installing the upper prefabricated parts, manufacturing longitudinal connecting columns in longitudinal connecting hand holes, and finally correspondingly connecting the upper prefabricated parts. This joint design, its simple structure, waterproof nature is good with the wholeness, is applicable to different environment, and is low to the required precision of assembly, and construction convenience is swift, reducible time limit for a project.
Description
Technical Field
The utility model relates to the technical field of tunnel engineering joints, in particular to an assembled frame tunnel joint structure.
Background
With the acceleration of the urbanization process, the demand of the society on underground space is larger and larger, and with the development of the urban underground space, more and more tunnels and underground engineering facilities are built. The existing tunnel installation technology mainly comprises integral cast-in-place and prefabricated assembly, wherein the assembled frame tunnel has the advantages of high space utilization rate, simple construction process, high speed, easy quality control and the like, and is more and more widely applied to urban tunnels.
However, the assembled frame tunnel is formed by connecting various joints, the structure of the assembled frame tunnel is a discontinuous body, and the joints are the weakest parts in the construction and operation stages of the frame tunnel, so that the safety performance of the whole tunnel can be affected by unreasonable design of the joints. At present, most of assembled frame tunnel joints adopt a steel box or a straight seam type joint, the straight seam type joint can reduce the strength of a joint, the steel box joint is easy to rust and is not easy to replace, and therefore the integrity and the safety of a tunnel are affected. In addition, the tunnel is located in underground water and rainfall environment throughout the year, so the waterproof design and waterproof performance of the tunnel also affect the performance of the tunnel.
In view of the above, research and improvement are performed according to the existing problems, and through the development of an assembly type frame tunnel joint, the influence of the joint on the overall strength of a tunnel is reduced while the construction efficiency is improved, the tunnel is ensured to have good integrity, shock resistance and waterproofness, and partial problems existing in the existing frame tunnel joint are solved through the technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an assembly type frame tunnel joint structure which solves the problems of low strength and poor integrity of the joint in the background technology.
In order to solve the technical problems, the utility model adopts the technical scheme that:
an assembled frame tunnel joint structure comprises an upper prefabricated part A, an upper prefabricated part B, a lower prefabricated part C, a lower prefabricated part D, a longitudinal connecting column and a transverse connecting column; the two ends of the upper prefabricated part A and the upper prefabricated part B are provided with upper longitudinal connecting hand holes, and the middle of the upper prefabricated part A and the upper prefabricated part B is provided with an upper transverse connecting hand hole; lower part prefab C, lower part prefab D both ends be provided with down vertical connection hand hole, the centre is provided with down transverse connection hand hole, be provided with grouting hole, exhaust hole and nut hole on the transverse connection hand hole, its positional relationship and relation of connection are as follows: the upper prefabricated member A and the upper prefabricated member B are correspondingly connected through a transverse connecting column, the upper prefabricated member A is correspondingly connected with the lower prefabricated member C through a longitudinal connecting column, the lower prefabricated member C is correspondingly connected with the lower prefabricated member D through the transverse connecting column, the lower prefabricated member D is correspondingly connected with the upper prefabricated member B through the longitudinal connecting column, and a grouting hole, an exhaust hole and a nut hole which are communicated with a transverse connecting hand hole are formed in the upper portion of the transverse connecting hand hole.
The butt joint end faces of the upper prefabricated member and the lower prefabricated member are provided with waterproof grooves, and rubber water stops are arranged in the waterproof grooves; the butt joint of the upper prefabricated member and the lower prefabricated member is provided with a water stop steel plate on the contact surface of the rock stratum or the soil layer, and the water stop steel plate is half pre-buried in the lower prefabricated member.
The upper longitudinal connecting hand hole is communicated, the lower longitudinal connecting hand hole is arranged at a position 10cm away from the bottom of the lower prefabricated member, and the longitudinal connecting hand hole is circular.
The transverse connecting hand hole is circular.
The transverse connecting column is a prestressed reinforced concrete connecting column.
The longitudinal connecting column is one or a combination of a steel pipe core concrete connecting column, a prestressed reinforced concrete connecting column and a reinforced concrete connecting column.
The steel pipe core concrete connecting column takes a round steel pipe as a core, the steel reinforcement cage is wrapped on the outer side of the steel pipe, and the concrete fills the gap and wraps the steel reinforcement cage.
The prestressed reinforced concrete connecting column takes stiffening steel bars as cores, a reinforcing cage wraps the outer sides of the stiffening steel bars, concrete fills gaps and wraps the reinforcing cage, nuts are pre-buried in the lower prefabricated part, threads matched with the nuts are arranged at two ends of the stiffening steel bars, or bolts matched with the nuts are arranged at two ends of the stiffening steel bars.
And a reinforcement cage is arranged in the middle of the reinforced concrete connecting column, and the concrete fills the gap and wraps the reinforcement cage.
The construction method of the tunnel joint structure comprises the following construction steps:
(1) pouring an upper prefabricated member A, an upper prefabricated member B, a lower prefabricated member C and a lower prefabricated member D;
(2) correspondingly connecting the lower prefabricated member C and the lower prefabricated member D and manufacturing a transverse connecting column of the lower prefabricated member C and the lower prefabricated member D;
(3) correspondingly assembling the upper prefabricated member B and the lower prefabricated member C,
(4) manufacturing a longitudinal connecting column in the longitudinal connecting hand hole;
(5) manufacturing a transverse connecting column to correspondingly connect the upper prefabricated part A with the upper prefabricated part B;
(6) and finally, manufacturing a longitudinal connecting column to connect the upper prefabricated member A and the lower prefabricated member D.
As a further optimization, the upper preform a is the same preform as the upper preform B.
As a further optimization, the lower preform C is the same preform as the lower preform D.
The utility model has the following beneficial effects:
1. the joint structure is simple, can be manufactured and maintained in a factory in a unified mode, and can be directly installed after a construction site is convenient, so that the construction period is shortened.
2. The joint can use different connecting columns according to different field environments, so that the tunnel can resist different extremely complex operation environments (earthquake, impact, explosion and the like), and has good applicability.
3. The vertical through connection that adopts of this joint transversely has improved the wholeness in tunnel through exerting prestressing force to the stiffening steel bar fixed to the anti-seismic performance in tunnel has been strengthened.
4. The joint is provided with waterproof facilities on the connecting section surface and the outer side of the tunnel, so that the corrosion of rainfall and underground water to the joint can be effectively reduced, and the service life of the joint is prolonged.
5. The joint can be applied to the connection of not only the circumferential frame tunnel stage but also the longitudinal frame tunnel stage.
6. The structure adopts the mode construction of assembly + concreting, and is low, easy to assemble to the required precision of assembly.
Drawings
Fig. 1 is a schematic perspective view of an assembled frame tunnel joint structure according to the present invention.
Fig. 2 is a schematic perspective view of the longitudinal connecting column, the upper connecting hand hole and the lower connecting hand hole of the assembled frame tunnel joint structure of the present invention.
Fig. 3 is a schematic perspective view of the transverse connecting column and the upper prefabricated member of the fabricated frame tunnel joint structure of the present invention.
Fig. 4 is a schematic structural view of a steel pipe core concrete connection column of the fabricated frame tunnel joint structure of the present invention.
Fig. 5 is a schematic view of a prestressed reinforced concrete connecting column structure of the fabricated frame tunnel joint structure according to the present invention.
Fig. 6 is a schematic view of a reinforced concrete connecting column structure of the fabricated frame tunnel joint structure according to the present invention.
Fig. 7 is a schematic view of a waterproof structure of the fabricated frame tunnel joint structure of the present invention.
Fig. 8 is a view showing an overall application of the tunnel of the fabricated frame tunnel joint structure of the present invention.
Labeled as: 1 is an upper prefabricated part B, 2 is an upper prefabricated part A, 3 is a transverse connecting column, 4 is a lower prefabricated part C, 5 is a longitudinal connecting column, 6 is an upper longitudinal connecting hand hole, 7 is a transverse connecting hand hole, 8 is a nut hole, 9 is a nut, 10 is a waterproof seam, 1001 is a rubber water stop band, 11 is a water stop steel plate, 1101 is a waterproof material, 1102 is a steel plate anticorrosive material, 12 is a steel pipe, 13 is a reinforcement cage, 14 is concrete, 15 is a stiffening steel bar, 16 is a lower prefabricated part D, 17 is a lower connecting hand hole, 18 is a grouting hole, 19 is an exhaust hole, 501 is a steel pipe core concrete connecting column, 502 is a prestressed reinforced concrete connecting column, and 503 is a reinforced concrete connecting column.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
This embodiment is an example of the fabricated frame tunnel joint structure according to the present invention, and simulates construction installation in an earthquake-prone area. The component components comprise an upper prefabricated component B1, an upper prefabricated component A2, a transverse connecting column 3, a lower prefabricated component C4, a longitudinal connecting column 5, a steel pipe core concrete connecting column 501, a prestressed reinforced concrete connecting column 502, an upper longitudinal connecting hand hole 6, a lower longitudinal connecting hand hole 17, a transverse connecting hand hole 7, a nut hole 8, a nut 9, a waterproof seam 10, a rubber waterstop 1001, a water-stopping steel plate 11, a waterproof material 1101, an anticorrosive material 1102, a steel pipe 12, a steel reinforcement cage 13, concrete 14, a stiffening steel bar 15 and a lower prefabricated component D16.
As shown in fig. 1, the position relationship and connection relationship of the components are: the transverse connecting column 3 is inserted into the corresponding transverse connecting hand hole 7 and is screwed down by using a nut 9, and the longitudinal connecting column 5 is connected with the upper prefabricated member and the lower prefabricated member through the upper longitudinal connecting hand hole 6 and the lower longitudinal connecting hand hole 17.
As shown in fig. 2 and 7, when the lower prefabricated member is poured, half of the water stop steel plate 11 needs to be embedded in the lower prefabricated member, and welded to the steel bars to be fixed. Before the upper prefabricated member is installed, a rubber water stop 1001 is plugged into the waterproof seams 10 of the upper and lower prefabricated members. Place lower part prefab 4 on the level ground, place the upper portion prefab on just being to the lower part prefab, fill waterproof material 1101 after the butt joint in the space of stagnant water steel sheet 11 and upper portion prefab, it is fixed to smear grout around stagnant water steel sheet 11 to scribble anticorrosive material 1102 on exposed steel sheet, pour the longitudinal joint post to connecting the handhole interior finally.
In the earthquake-prone area, the steel pipe core concrete connecting column 501 and the prestressed reinforced concrete connecting column 502 can be selected as longitudinal connecting columns, and both meet the earthquake-resistant performance in the earthquake-prone area. If the steel pipe concrete core connecting column 501 is selected, as shown in fig. 4, the steel pipe 12 and the reinforcement cage 13 are inserted into the connecting hand hole 6, and then the concrete 14 is poured; if the prestressed reinforced concrete column 502 is selected, as shown in fig. 5, the nuts 9 are pre-embedded into the lower connecting hand holes, then the lower portions of the stiffening steel bars 15 are screwed into the nuts 9 for fixation, the reinforcement cage 13 is inserted, the concrete 14 is poured, the stiffening steel bars are prestressed by a wrench at the upper portions, and finally the nuts 9 are screwed at the upper portions.
As shown in fig. 3, the tunnel section is composed of a plurality of upper and lower prefabricated members which are connected laterally by prestressed reinforced concrete columns 502. Firstly, two adjacent upper and lower prefabricated members are arranged side by side, then, nuts 9 are embedded in nut holes 8 of the upper and lower prefabricated members on one side, stiffening steel bars 15 are inserted into the nuts 9 to be fixed, then, steel bar cages 13 are inserted into the transverse connecting hand holes 7, concrete 14 is poured in, a wrench is used for applying prestress to the stiffening steel bars, and finally, the nuts 8 are screwed in to complete the connection of the two adjacent upper and lower prefabricated members.
Example 2
This embodiment is another example of the fabricated frame tunnel joint structure according to the present invention, which simulates construction installation in a stable ground area.
As shown in fig. 6, in a region where the ground is stable and there is no special complicated environment, a reinforced concrete column 503 may be used as a longitudinal column of the tunnel, which not only saves materials, but also satisfies the strength required for a general tunnel. When the reinforced concrete connecting column 503 is installed, the reinforcement cage is inserted into the longitudinal connecting hand hole and poured into the concrete 14. The other installation was the same as in example 1.
In the accident-prone sections of the tunnel, such as curves, narrow strips and other tunnel sections which are prone to accidents, the reinforced concrete core connecting column 501 and the prestressed reinforced concrete connecting column 502 can be selected as connecting columns of the vertical connecting structure to reinforce the tunnel, and the installation mode is the same as that of embodiment 1.
Example 3
As shown in fig. 1, this embodiment is an example of a construction method of a fabricated frame tunnel joint structure according to the present invention, and includes the following steps:
1. pouring an upper prefabricated member A, an upper prefabricated member B and a lower prefabricated member C, and pouring a lower prefabricated member D: a plurality of upper and lower preforms are made as needed for use. And pre-embedding the nut in the transverse connecting hand hole, and pouring the nut in the lower longitudinal connecting hand hole.
2. With lower part prefab C, lower part prefab D corresponds to connect and make lower part prefab C, the horizontal spliced pole of lower part prefab D: and horizontally placing the lower prefabricated part C, then inserting stiffening steel bars, screwing and fixing the stiffening steel bars on the nuts, and then sleeving a steel bar cage on the stiffening steel bars. And (4) aligning the lower prefabricated part D with the stiffening steel bars and the reinforcing cage, sleeving the lower prefabricated part D with the stiffening steel bars and the reinforcing cage, fixing the nuts and the stiffening steel bars on the lower prefabricated part D, and pouring concrete from the grouting holes.
3. Correspondingly assembling the upper prefabricated member B and the lower prefabricated member C: firstly, a rubber water stop 1001 is plugged into the waterproof seams 10 of the upper prefabricated member B and the lower prefabricated member C. Placing the upper prefabricated member B right against the lower prefabricated member C, filling a waterproof material 1101 in a gap between the water stop steel plate 11 and the upper prefabricated member after butt joint, smearing cement paste around the water stop steel plate 11 for fixation, and smearing an anticorrosive material 1102 on the exposed steel plate.
4. Manufacturing a longitudinal connecting column in the longitudinal connecting hand hole: and placing the steel pipe 12, the stiffening steel bars 15 and the steel reinforcement cage 13 in the longitudinal connecting hand hole according to the requirement, and then pouring concrete 14. When the stiffening steel bars 15 are put in, the stiffening steel bars need to be screwed with the nuts 9 pre-embedded in the lower prefabricated part C, and then concrete 14 is poured.
5. Manufacturing a transverse connecting column to correspondingly connect the upper prefabricated part A with the upper prefabricated part B: and inserting a stiffening steel bar 15 into the nut 9 of the upper prefabricated part B, screwing the nut, then sleeving a steel bar cage 13 on the stiffening steel bar 15, sleeving the stiffening steel bar 15 and the steel bar cage 13 into the corresponding transverse connecting hand hole of the upper prefabricated part A, screwing the nut pre-embedded in the upper prefabricated part A into the stiffening steel bar 15, and finally pouring concrete from the grouting hole 18.
6. And finally, manufacturing a longitudinal connecting column to connect the upper prefabricated member A and the lower prefabricated member D: first, rubber waterstops 1001 are plugged into waterproof seams 10 of the upper prefabricated member and the lower prefabricated member. Placing the upper prefabricated member A right opposite to the lower prefabricated member D, filling a waterproof material 1101 in a gap between the water stop steel plate 11 and the upper prefabricated member A after butt joint, smearing cement paste around the water stop steel plate 11 for fixation, and smearing an anticorrosive material 1102 on the exposed steel plate. And placing the steel pipe 12, the stiffening steel bars 15 and the steel reinforcement cage 13 in the longitudinal connecting hand hole according to the requirement, and then pouring concrete 14. When the stiffening steel bars 15 are placed, the stiffening steel bars need to be fixed with the nuts pre-embedded in the lower prefabricated part C, and then concrete is poured.
The above-described embodiments are merely preferred and not restrictive, and it will be apparent to those skilled in the art that various modifications and changes may be made without departing from the spirit of the utility model, and such modifications and changes are to be considered as within the scope of the utility model.
Claims (9)
1. An assembled frame tunnel joint structure comprises an upper prefabricated part A, an upper prefabricated part B, a lower prefabricated part C, a lower prefabricated part D, a longitudinal connecting column and a transverse connecting column, and is characterized in that upper longitudinal connecting hand holes are formed in two ends of the upper prefabricated part A and two ends of the upper prefabricated part B, and an upper transverse connecting hand hole is formed in the middle of the upper prefabricated part A and the upper prefabricated part B; lower part prefab C, lower part prefab D both ends be provided with down vertical connection hand hole, the centre is provided with down transverse connection hand hole, be provided with grouting hole, exhaust hole and nut hole on the transverse connection hand hole, its positional relationship and relation of connection are as follows: the upper prefabricated member A and the upper prefabricated member B are correspondingly connected through a transverse connecting column, the upper prefabricated member A is correspondingly connected with the lower prefabricated member C through a longitudinal connecting column, the lower prefabricated member C is correspondingly connected with the lower prefabricated member D through the transverse connecting column, the lower prefabricated member D is correspondingly connected with the upper prefabricated member B through the longitudinal connecting column, and a grouting hole, an exhaust hole and a nut hole which are communicated with a transverse connecting hand hole are formed in the upper portion of the transverse connecting hand hole.
2. The tunnel joint structure of claim 1, wherein the abutting end faces of the upper prefabricated member and the lower prefabricated member are provided with waterproof grooves, and rubber water stop belts are arranged in the waterproof grooves; the butt joint of the upper prefabricated member and the lower prefabricated member is provided with a water stop steel plate on the contact surface of the rock stratum or the soil layer, and the water stop steel plate is half pre-buried in the lower prefabricated member.
3. The tunnel joint structure of claim 1, wherein the upper longitudinal connecting hand hole is through, the lower longitudinal connecting hand hole is set to a distance of 10cm from the bottom of the lower prefabricated member, and the longitudinal connecting hand hole is circular.
4. The tunnel joint structure of claim 1, wherein the transverse connecting hand hole is circular.
5. The tunnel joint structure of claim 1, wherein the transverse connecting columns are prestressed reinforced concrete connecting columns.
6. The tunnel joint structure of claim 1, wherein the longitudinal connecting columns are one or a combination of steel pipe core concrete connecting columns, prestressed reinforced concrete connecting columns and reinforced concrete connecting columns.
7. The tunnel joint structure of claim 6, wherein the steel tube core concrete connection column is centered on the circular steel tube, the reinforcement cage is wrapped outside the steel tube, and the concrete fills the gap and wraps the reinforcement cage.
8. The tunnel joint structure of claim 5 or 6, wherein the prestressed reinforced concrete connecting column is formed by using a reinforcing steel bar as a core, a reinforcement cage is wrapped outside the reinforcing steel bar, concrete fills the gap and wraps the reinforcement cage, nuts are pre-embedded in the lower prefabricated member, threads matched with the nuts are arranged at two ends of the reinforcing steel bar, or bolts matched with the nuts are arranged at two ends of the reinforcing steel bar.
9. The tunnel joint structure of claim 6, wherein a reinforcement cage is provided in the middle of the reinforced concrete connecting column, and the concrete fills the gap and wraps the reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122570144.9U CN216043744U (en) | 2021-10-25 | 2021-10-25 | Assembled frame tunnel joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122570144.9U CN216043744U (en) | 2021-10-25 | 2021-10-25 | Assembled frame tunnel joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216043744U true CN216043744U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122570144.9U Active CN216043744U (en) | 2021-10-25 | 2021-10-25 | Assembled frame tunnel joint structure |
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|---|---|
| CN (1) | CN216043744U (en) |
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2021
- 2021-10-25 CN CN202122570144.9U patent/CN216043744U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Zhen Inventor after: Zhang Wei Inventor after: Quan Jiaying Inventor before: Huang Zhen Inventor before: Quan Jiaying Inventor before: Zhang Wei |
|
| CB03 | Change of inventor or designer information |