CN220060784U - Precast concrete pipe jacking pipe joint in vault straight wall structural form - Google Patents
Precast concrete pipe jacking pipe joint in vault straight wall structural form Download PDFInfo
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- CN220060784U CN220060784U CN202321700513.4U CN202321700513U CN220060784U CN 220060784 U CN220060784 U CN 220060784U CN 202321700513 U CN202321700513 U CN 202321700513U CN 220060784 U CN220060784 U CN 220060784U
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 238000010276 construction Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 9
- 241001270131 Agaricus moelleri Species 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model provides a precast concrete pipe-jacking pipe joint in a vault straight wall structure form, which relates to the field of pipeline engineering and comprises the following components: the top plate, the bottom plate and the two side plates are connected smoothly at the joint of the top plate, the bottom plate and the two side plates to form a pipe-jacking pipe joint; one end circumference outside of the push pipe joint is provided with a steel bellmouth, the other end circumference outside of the push pipe joint is provided with a socket, and the socket of the back push pipe joint is inserted into the steel bellmouth of the front push pipe joint, so that the front push pipe joint and the back push pipe joint are fixedly connected. Compared with the traditional concrete pipe joint for jacking pipes, the concrete pipe joint has the advantages that on one hand, the top plate is of a vault structure, external load can be better overcome, and on the other hand, the side wall is of a straight wall structure, so that the utilization rate can be better increased; under the same external load effect, the vault structure can effectively reduce the pipe section thickness and the steel bar content compared with the flat-top structure, thereby achieving the purpose of saving cost.
Description
Technical Field
The utility model relates to the technical field of pipeline engineering, in particular to a precast concrete pipe-jacking pipe joint in a vault straight wall structure form.
Background
The pipe jacking technology is a trenchless tunneling pipeline laying construction technology for municipal construction, and has the advantages of no influence on surrounding environment or small influence, small construction site, low noise and capability of deep underground operation, which is incomparable with the excavation of buried pipes.
The forms of the construction section of the top pipe at the present stage are mainly two, namely a round section and a rectangular section; when the prefabricated concrete jacking pipe is used for construction, the upper load is the main load, the arch structure with the circular section has strong pressure resistance compared with the flat-top structure with the rectangular section, but when the diameter of the circular pipe is the same as the length of the rectangular pipe, the sectional area of the circular pipe is smaller than that of the rectangular pipe, and the space utilization rate is low; particularly, when the circular pipe is used as a power channel, a power bracket is required to be installed on the side wall, the circular pipe is limited by the concave side wall, the usability is lower, and generally, rectangular pipes are often adopted for jacking construction; in order to overcome external load, the wall thickness and the steel bar amount are large when the rectangular pipe joint is designed, so that the cost is high.
Therefore, the round pipe has strong load resistance but low space utilization rate, the rectangular pipe has poor load resistance but high space utilization rate, and the problem of how to overcome external load and improve space utilization rate is urgent to be solved.
Disclosure of Invention
In view of the technical problems in the background art, the utility model provides a precast concrete pipe-jacking pipe joint in a vault straight wall structure, a pipe joint top plate is of a vault structure, external load can be better overcome, a side plate wall is of a straight wall structure, space utilization rate can be better increased, and the aim of saving cost is achieved.
In order to achieve the above object, the present utility model provides a precast concrete pipe-jacking section in the form of a vault straight wall structure, comprising: the top plate is a vault, the bottom plate is a flat plate, the side plates are straight plates, and the joints of the top plate, the bottom plate and the two side plates are smoothly connected in a transitional manner to form a pipe-jacking pipe joint;
a steel bellmouth is arranged on the outer side of the circumference of one end of the push pipe joint, a socket is arranged on the outer side of the circumference of the other end of the push pipe joint, the socket of the rear pipe-jacking pipe joint is inserted into the steel bell mouth of the front pipe-jacking pipe joint, so that the front pipe-jacking pipe joint and the rear pipe-jacking pipe joint are fixedly connected.
As a further improvement of the utility model, a steel socket is circumferentially arranged at the outer side of one end of the pipe-jacking joint, the steel socket is connected with a reinforcement cage in the pipe-jacking joint in an anchoring manner through a reinforcement, and the edge of the steel socket exceeds the edge of the pipe-jacking joint.
As a further improvement of the utility model, the steel bellmouth has a thickness of 10mm and a width of 350mm;
the width of the steel bellmouth anchored into the pipe section of the top pipe is 150mm, and the width exceeding the edge of the pipe section of the top pipe is 200mm.
As a further development of the utility model, the socket width is equal to the width of the steel socket beyond the top pipe section.
As a further improvement of the utility model, an annular rubber ring groove is formed in the socket along the direction from the outer wall to the inner wall of the pipe joint of the jacking pipe, and a sealing rubber ring is arranged in the rubber ring groove;
when the socket of the rear pipe-jacking pipe joint is inserted into the steel bell mouth of the front pipe-jacking pipe joint, the sealing rubber ring plays a role in sealing the socket formed by the steel bell mouth and the socket.
As a further improvement of the utility model, the rubber ring groove and the sealing rubber ring are provided with one or more channels.
As a further improvement of the utility model, the rubber ring groove is in an inverted ladder shape from outside to inside along the section direction of the socket.
As a further improvement of the utility model, a buffer gasket is arranged on the head-on of the pipe joint of the top pipe covered by the steel bellmouth.
As a further improvement of the utility model, the wall thickness of the top plate of the pipe section of the top pipe is 250mm, the thickness of the bottom plate is 330mm, the thicknesses of the side plates are all 250mm, the clear width of the pipe section of the top pipe is 2360mm, and the clear height is 2580mm.
As a further improvement of the utility model, grouting holes are arranged on the top plate, the bottom plate and the two side plates of the top pipe joint.
Compared with the prior art, the utility model has the beneficial effects that:
the concrete pipe joint processing mode and the interface form of the concrete pipe joint are the same as those of the traditional pipe joint for jacking pipes, but compared with the traditional pipe joint for jacking pipes, the pipe joint for jacking pipes has the advantages that on one hand, the top plate is of a vault structure, external load can be overcome better, on the other hand, the side wall is of a straight wall structure, and the utilization rate can be increased better; under the same external load effect, the vault structure can effectively reduce the pipe section thickness and the steel bar content compared with the flat-top structure, thereby achieving the purpose of saving cost.
According to the utility model, the socket and the steel bell mouth are respectively arranged at the two ends of the pipe-jacking pipe joint, and the rubber ring groove and the sealing rubber ring are arranged at the socket end, so that each pipe-jacking pipe joint can be firmly connected and reliably sealed, and the pipe-jacking construction requirement is met.
Drawings
FIG. 1 is a schematic side view of a precast concrete pipe-jacking pipe joint in the form of a vault straight wall structure according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a precast concrete pipe-jacking pipe joint dome position in the form of a dome straight wall construction as disclosed in one embodiment of the present utility model;
fig. 3 is an enlarged schematic view of the socket of fig. 2.
Reference numerals illustrate:
1. embedding bolts; 2. the inner wall of the pipe joint of the jacking pipe; 3. the outer wall of the pipe joint of the pipe jacking pipe; 4. grouting holes; 5. a socket; 51. a rubber ring groove; 6. a steel socket; 7. and a cushion pad.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The utility model is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the prefabricated concrete pipe-jacking pipe joint in the structural form of a vault straight wall provided by the utility model comprises: the top plate, the bottom plate and the two side plates are connected smoothly at the joint of the top plate, the bottom plate and the two side plates to form a pipe-jacking pipe joint;
as shown in fig. 2, a steel socket 6 is arranged on the outer side of one end of the pipe-jacking joint in the circumferential direction, a socket 5 is arranged on the outer side of the other end of the pipe-jacking joint in the circumferential direction, and the socket 5 of the pipe-jacking joint in the rear is inserted into the steel socket 6 of the pipe-jacking joint in the front, so that the front pipe-jacking joint and the rear pipe-jacking joint are fixedly connected.
Wherein,
the pipe-jacking pipe joint is a precast concrete pipe-jacking pipe joint, namely: based on a reinforcement cage framework, pouring concrete to obtain the reinforced concrete; the top plate, the bottom plate and the two side plates are all reinforced concrete structures.
The outer circumference of one end of the pipe joint of the push pipe is provided with a steel socket 6, the edge of the steel socket 6 exceeds the edge of the pipe joint of the push pipe, and specifically, when the pipe joint of the push pipe is processed, the steel socket 6 and a steel cage of the pipe joint of the push pipe are firmly welded and anchored through steel bars.
The width of the socket 5 is equal to the width of the steel bellmouth 6 beyond the pipe joint of the top pipe.
Further, the method comprises the steps of,
the socket 5 is provided with a circumferential rubber ring groove 51 along the direction from the outer wall to the inner wall of the pipe joint of the jacking pipe, and a sealing rubber ring is arranged in the rubber ring groove 51; when the socket 5 of the rear pipe-jacking pipe joint is inserted into the steel bell mouth 6 of the front pipe-jacking pipe joint, the sealing rubber ring plays a role in sealing the plug-in port formed by the socket 5 and the steel bell mouth 6, so that the tightness between the two pipe joints is ensured.
As shown in fig. 3, the rubber ring groove 51 is inverted ladder-shaped from the outer wall 3 of the top pipe section to the inner wall 2 of the top pipe section along the section direction of the socket 5;
one or more sealing rubber rings and rubber ring grooves 51 are arranged, and each sealing rubber ring is respectively arranged in each rubber ring groove 51;
the buffer gasket 7 is arranged on the head-on of the pipe joint of the pipe with the steel bellmouth 6, and the joint of the two pipe joints is used as buffer to prevent the head-on of the pipe joint of the pipe from being damaged during jacking.
The top plate, the bottom plate and the two side plates of the pipe joint are respectively provided with a grouting hole 4, and lubricating slurry is injected into the pipe joint outer wall 3 from the inside of the pipe joint through the grouting holes 4 in the process of pushing the pipe joint and jacking the machine head by the jacking oil cylinder, so that the friction force between the pipe joint outer wall 3 and the outside soil body is reduced.
Still further, the method comprises the steps of,
the length of a single-section pipe-jacking pipe section is 2000m;
in particular, the method comprises the steps of,
the thickness of the steel bellmouth 6 is 10mm, the width is 350mm, and the steel bellmouth can be adjusted according to the design requirement;
the width of the steel bellmouth 6 anchored into the pipe section of the top pipe is 150mm, the width exceeding the edge of the pipe section of the top pipe is 200mm, and the steel bellmouth and the pipe section of the top pipe can be adjusted according to the design requirement;
the wall thickness of the top plate of the pipe section of the top pipe is 250mm, the thickness of the bottom plate is 330mm, the thickness of the side plate is 250mm, the clear width of the pipe section of the top pipe is 2360mm, the clear height is 2580mm, and the top plate and the side plate can be adjusted according to design requirements.
Be equipped with a plurality of embedded bolts 1 on the pipe section inner wall 2 of push pipe, and the symmetry sets up on both sides board, and embedded bolt 1's position and quantity are all adjustable, as shown in fig. 1, 10 embedded bolts 1 symmetry set up on both sides board, make both sides board have 5 embedded bolts 1 respectively, and embedded bolt 1 quantity and position all can be according to the design requirement adjustment.
Examples:
the process for installing the pipe-jacking pipe joint comprises the following steps:
step 1, a machine head is firmly connected with a socket 5 of a previous pipe-jacking pipe joint, and a jacking cylinder pushes the pipe-jacking pipe joint and the machine head to jack;
step 2, inserting a socket 5 of a rear pipe-jacking joint into a steel bell mouth 6 of a front pipe-jacking joint, and sealing and firmly connecting the front pipe-jacking joint and the rear pipe-jacking joint under the action of a sealing rubber ring and a buffer gasket 7;
and 3, pushing the pipe-jacking pipe joints and the machine head to jack in by the jacking oil cylinder, installing the pipe joints section by section, and performing circulation.
And 4, in the jacking process, grouting lubrication slurry is injected from the inner side to the outer side of the pipe section of the pipe through the grouting holes 4, so that the friction force between the outer wall 3 of the pipe section of the pipe and an object at the outer side is reduced, and the smooth jacking of the pipe section of the pipe is ensured.
The utility model has the advantages that:
the concrete pipe joint processing mode and the interface form of the concrete pipe joint are the same as those of the traditional pipe joint for jacking pipes, but compared with the traditional pipe joint for jacking pipes, the pipe joint for jacking pipes has the advantages that on one hand, the top plate is of a vault structure, external load can be overcome better, on the other hand, the side wall is of a straight wall structure, and the utilization rate can be increased better; under the same external load effect, the vault structure can effectively reduce the pipe section thickness and the steel bar content compared with the flat-top structure, thereby achieving the purpose of saving cost.
According to the utility model, the socket and the steel bell mouth are respectively arranged at the two ends of the pipe-jacking pipe joint, and the rubber ring groove and the sealing rubber ring are arranged at the socket end, so that each pipe-jacking pipe joint can be firmly connected and reliably sealed, and the pipe-jacking construction requirement is met.
The above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but various modifications and variations are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a vault straight wall structural style's precast concrete pipe push pipe festival which characterized in that includes: the top plate is a vault, the bottom plate is a flat plate, the side plates are straight plates, and the joints of the top plate, the bottom plate and the two side plates are smoothly connected in a transitional manner to form a pipe-jacking pipe joint;
a steel bellmouth is arranged on the outer side of the circumference of one end of the push pipe joint, a socket is arranged on the outer side of the circumference of the other end of the push pipe joint, the socket of the rear push pipe joint is inserted into the steel bellmouth of the front push pipe joint, so that the front push pipe joint and the rear push pipe joint are fixedly connected.
2. The precast concrete jacking pipe segment in the form of a vault straight wall construction according to claim 1, wherein: the outer circumference of one end of the push pipe joint is provided with a steel bellmouth, the steel bellmouth is connected with a reinforcement cage in the push pipe joint in an anchoring way through a reinforcement, and the edge of the steel bellmouth exceeds the edge of the push pipe joint.
3. The precast concrete jacking pipe segment in the form of a vault straight wall construction according to claim 2, wherein: the thickness of the steel bellmouth is 10mm, and the width is 350mm;
the width of the steel bellmouth anchored into the pipe section of the top pipe is 150mm, and the width exceeding the edge of the pipe section of the top pipe is 200mm.
4. The precast concrete jacking pipe segment in the form of a vault straight wall construction according to claim 2, wherein: the width of the socket is equal to the width of the steel bell mouth beyond the pipe joint of the top pipe.
5. The precast concrete pipe-jacking section in the form of a straight vault wall construction according to claim 4, wherein: the socket is provided with a circumferential rubber ring groove along the direction from the outer wall to the inner wall of the pipe joint of the jacking pipe, and a sealing rubber ring is arranged in the rubber ring groove;
when the socket of the rear pipe-jacking pipe joint is inserted into the steel bellmouth of the front pipe-jacking pipe joint, the sealing rubber ring plays a role in sealing the socket formed by the steel bellmouth and the socket.
6. The precast concrete pipe-jacking section in the form of a straight vault wall construction according to claim 5, wherein: the rubber ring groove and the sealing rubber ring are provided with one or more channels.
7. The precast concrete pipe-jacking section in the form of a straight vault wall construction according to claim 5, wherein: the rubber ring groove is inverted ladder-shaped from outside to inside along the section direction of the socket.
8. The precast concrete jacking pipe segment in the form of a vault straight wall construction according to claim 1, wherein: and a buffer gasket is arranged on the head-on of the top pipe joint covered by the steel bellmouth.
9. The precast concrete jacking pipe segment in the form of a vault straight wall construction according to claim 1, wherein: the wall thickness of the top plate of the pipe section of the top pipe is 250mm, the thickness of the bottom plate is 330mm, the thickness of the side plate is 250mm, the clear width of the pipe section of the top pipe is 2360mm, and the clear height is 2580mm.
10. The precast concrete jacking pipe segment in the form of a vault straight wall construction according to claim 1, wherein: grouting holes are formed in the top plate, the bottom plate and the two side plates of the top pipe joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321700513.4U CN220060784U (en) | 2023-06-30 | 2023-06-30 | Precast concrete pipe jacking pipe joint in vault straight wall structural form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321700513.4U CN220060784U (en) | 2023-06-30 | 2023-06-30 | Precast concrete pipe jacking pipe joint in vault straight wall structural form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060784U true CN220060784U (en) | 2023-11-21 |
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ID=88753441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321700513.4U Active CN220060784U (en) | 2023-06-30 | 2023-06-30 | Precast concrete pipe jacking pipe joint in vault straight wall structural form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060784U (en) |
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2023
- 2023-06-30 CN CN202321700513.4U patent/CN220060784U/en active Active
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