CN218439395U - Rectangular jacking pipe with double-steel-plate structure - Google Patents
Rectangular jacking pipe with double-steel-plate structure Download PDFInfo
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- CN218439395U CN218439395U CN202222872927.7U CN202222872927U CN218439395U CN 218439395 U CN218439395 U CN 218439395U CN 202222872927 U CN202222872927 U CN 202222872927U CN 218439395 U CN218439395 U CN 218439395U
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Abstract
The utility model discloses a rectangle push pipe with double steel plate structure, belonging to the rectangle push pipe tunnel field, the push pipe body (concrete) and the steel sleeves at the inner side and the outer side act together through the anti-shearing connecting piece, the structure of 'double steel plates + concrete' is adopted, the bearing capacity is higher than that of the common concrete push pipe, the problem of overlarge dead weight of the pipe joint is solved, and the problem of comparatively weak joint of the push pipe is solved; the bearing capacity requirement of a common concrete jacking pipe is met by reducing the wall thickness, the self weight is reduced, meanwhile, the jacking of construction is accelerated, the construction efficiency is improved, the space rate in the pipe can be effectively improved compared with a jacking pipe with the same size, and the concrete jacking pipe has good economic effect and popularization and application values.
Description
Technical Field
The utility model belongs to rectangle push pipe tunnel field, concretely relates to rectangle push pipe of two steel sheet structures.
Background
The tunnel built by the rectangular pipe jacking method has the advantages of high cross-sectional area utilization rate, shallow buried depth, uninterrupted ground road traffic, avoidance of underground pipeline removal, no noise and the like, can be applied to projects such as underground excavation of subway stations, underground pipe galleries, subway station access and exit street crossing channels, pedestrian street crossing underground channels, tunnels passing urban roads downwards, development of urban underground spaces, interconnection and intercommunication of underground spaces and the like, and represents the development direction of urban short and medium tunnel building technology.
Along with more and more underground tunnels are constructed by adopting a rectangular pipe jacking method, the size of the pipe jacking is larger and larger, the weight of a pipe joint is heavier and heavier, the thrust required by the pipe jacking machine during operation is larger and larger, and the long-distance propulsion is not facilitated. Meanwhile, the existing rectangular pipe-jacking tunnels are mainly longitudinally connected by adopting F-shaped socket joints, the joints can achieve a certain waterproof effect, but the structural integrity is poor, the contact part of the steel lantern ring and concrete belongs to the weak link of the pipe jacking, and once the earth surface load above the tunnel changes, the lower lying soil layer is uneven, the underground water level changes, the underground structure passes through the engineering movement in a close-contact manner and the like, the pipe joints are easy to stagger and open among the joints, so that the shearing and bending damage of the pipe joints are caused. When the longitudinal deformation of the jacking pipe is overlarge, the local waterproof failure at the joint is easily caused, so that the problems of leakage, water dripping, sand leakage, mud leakage and the like occur, the normal use is influenced, the structure safety is even endangered, and the engineering disaster is caused.
Therefore, on one hand, the existing rectangular pipe jacking structure has overlarge self weight of pipe joints and is inconvenient to construct; on the other hand, the push pipe joint is comparatively weak, leads to life weak and the security poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two steel sheet structure's rectangle push pipes, this push pipe make concrete and inside and outside both sides steel sleeve can the combined action through inside shear connector, and the structure dead weight is light and the load is big, can better adapt to complicated stratum state, and life is longer, and the structure is safer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rectangular jacking pipe with a double-steel-plate structure comprises an outer-side steel sleeve, an inner-side steel sleeve and a jacking pipe body;
the outer steel sleeve is sleeved outside the inner steel sleeve, and the jacking pipe body is positioned between the outer steel sleeve and the inner steel sleeve;
the inner surface of the outer steel sleeve and the outer surface of the inner steel sleeve are both connected with a plurality of shear connectors, and all the shear connectors are arranged in a staggered mode.
Further, the length of the outside steel sleeve is the same as that of the inside steel sleeve.
Further, the outside steel sleeve and the inside steel sleeve are arranged in alignment.
Furthermore, the outer steel sleeve and the inner steel sleeve are arranged in a staggered mode.
Further, the length of push pipe body with inboard steel sleeve is the same, and the two are alignment setting.
Furthermore, the outer steel sleeve and the inner steel sleeve are connected into an integral structure through axillary corner connecting ribs.
Furthermore, a water rubber groove is arranged at the joint of the top pipe body.
Furthermore, water-stopping rubber is arranged in the water-stopping rubber groove;
further, a support is welded on the outer surface of the inner steel sleeve.
Further, the shear connector is connected with the outer side steel sleeve and the inner side steel sleeve in a welding mode respectively.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a two steel sheet structure's rectangle push pipes through setting up two steel sheet structure in the push pipe body inboard and the outside, inboard steel sleeve and outside steel sleeve promptly, respectively with the shear connector setting of a certain quantity in the assigned position (the setting of staggering in position) of inboard steel sleeve and outside steel sleeve, solved the pipe joint dead weight problem too big, solved the comparatively weak problem of push pipe joint department simultaneously. Has the following advantages:
(1) Under the condition that the structure overall dimension is the same, the internal space of the rectangular top pipe with the double-steel-plate structure is obviously superior to that of a concrete top pipe, and the utilization rate of the internal space of the top pipe is improved. Because the strength of steel is higher and the dead weight is lighter, the member section is smaller than that of a concrete structure under the condition of meeting the same load requirement, the dead weight of the pipe joint is lighter, and the jacking of construction is convenient.
(2) The construction speed is high, and the construction quality is high. The adopted steel member can be transported to the site for pouring after being processed in a factory, and the top pipe body is formed after pouring, so that the transportation is convenient, and the site pouring process is simple and fast. The inner side steel sleeve and the outer side steel sleeve can directly serve as a pouring template when the pipe joint is poured, disassembly is not needed, the work flow is reduced, and the work efficiency is improved.
(3) During construction and operation, the inner steel sleeve and the outer steel sleeve can become a part of the jacking pipe structure, the jacking pipe body is well supported and protected, the service life of the rectangular jacking pipe is prolonged, the waterproof effect of the rectangular jacking pipe is superior to that of a pure concrete structure, and the rectangular jacking pipe has high economic effect and social effect.
To sum up, the utility model discloses a shear connector makes push pipe body (concrete) and inside and outside both sides steel sleeve combined action, what adopt is "two steel sheet + concrete" structure, and bearing capacity will be higher than ordinary concrete push pipe, can satisfy the bearing capacity requirement of general concrete push pipe through reducing the wall thickness, accelerates the jacking of construction when lightening the dead weight, improves the efficiency of construction, compares in can effectively improving intraductal space rate with the size push pipe, has good economic effect and popularization and application and worth.
Preferably, the pipe jacking joint of the utility model can adopt two modes of socket joint type and flat mouth type, and because the lengths of the steel sleeves at the inner side and the outer side are the same, the pipe jacking joint is a flat mouth type joint when the two are aligned; when the two are staggered, the connector is a socket type connector, and the relative positions of the inner steel sleeve and the outer steel sleeve are adjusted, so that the connector form can be reasonably selected according to the field requirement.
Preferably, the utility model discloses remove inboard steel sleeve to the inside welding that carries out the axillary angle reinforcing bar of outside steel sleeve, make two-layer steel sleeve connect into a whole, the wholeness ability of reinforcing rectangle push pipe.
Preferably, the utility model discloses a push pipe bellmouth joint end face department (the joint department of push pipe body) reserves stagnant water rubber groove, makes things convenient for stagnant water rubber's arrangement, and stagnant water rubber establishes at the joint department and can play fine water-proof effects.
Preferably, the outer surface of the inner steel sleeve of the utility model is welded with a support, so that the layout of the gallery pipes of the rectangular top pipe can be flexibly adjusted; the internal space of the double-steel-plate concrete jacking pipe is superior to that of a concrete jacking pipe with the same size, rivets are not required to be arranged on the pipe joints through punching so as to damage the self structures of the pipe joints, the support is welded on the inner steel sleeve, the installation and later maintenance of the pipeline are facilitated, dust raising operation such as punching is not required, materials such as cement, sand and stone are basically not required, traditional building waste such as mud and sewage is not generated, the energy-saving and environment-friendly process advantages are obvious, and the comprehensive operation capacity of the rectangular jacking pipe is improved.
Drawings
Fig. 1 is a schematic structural view of a rectangular jacking pipe with a double-steel-plate structure provided in an embodiment of the present invention;
FIG. 2 (a) is a schematic view of a longitudinal section of a socket type pipe jacking joint in an embodiment of the present invention;
fig. 2 (b) is a schematic longitudinal cross section of a plain top pipe joint in an embodiment of the present invention;
fig. 3 is a schematic view of an outer steel sleeve according to an embodiment of the present invention;
fig. 4 is a schematic view of an inner steel sleeve according to an embodiment of the present invention.
Reference numerals:
an outer steel sleeve-1; an inner steel sleeve-2; a jacking pipe body-3; a shear connector-4; axillary corner connecting ribs-5; a water-stopping rubber tank-6; and 7, water-stopping rubber.
Detailed Description
The utility model provides a rectangular top pipe with a double-steel-plate structure, which comprises an outer steel sleeve 1, an inner steel sleeve 2 and a top pipe body 3; the outer steel sleeve 1 is sleeved outside the inner steel sleeve 2, and the jacking pipe body 3 is positioned between the outer steel sleeve 1 and the inner steel sleeve 2; a plurality of shear connectors 4 are welded on the inner surface of the outer steel sleeve 1 and the outer surface of the inner steel sleeve 2, all the shear connectors 4 are arranged in a staggered mode, and the staggered mode is used for preventing built-in assembly (the inner steel sleeve 2 is installed in the outer steel sleeve 1) from being out of order and preventing assembly.
The length of the outer steel sleeve 1 is the same as that of the inner steel sleeve 2; the outer steel sleeve 1 and the inner steel sleeve 2 are arranged in an aligned mode or in a staggered mode.
Here, the jacking pipe body 3 and the inner steel sleeve 2 have the same length and are aligned.
The outer steel sleeve 1 and the inner steel sleeve 2 are connected into an integral structure through axillary corner connecting ribs 5.
A water rubber groove 6 is formed in the joint of the pipe jacking body 3, and water stopping rubber 7 is arranged in the water stopping rubber groove 6 and used for waterproof treatment;
in addition, a support is welded on the outer surface of the inner steel sleeve 2.
Examples
The embodiment provides a rectangular jacking pipe with a double-steel-plate structure, which comprises an outer-side steel sleeve 1, an inner-side steel sleeve 2, a jacking pipe body 3, a shear connector 4, an axillary corner connecting rib 5, a water stop rubber groove 6 and joint water stop rubber 7.
The top pipe body 3 in the embodiment adopts plain concrete top pipes;
the embodiment provides a rectangular jacking pipe with a double-steel-plate structure, which comprises the following preparation processes:
as shown in fig. 1, the shear connector 4 is respectively welded at the designated positions of the outer steel sleeve 1 and the inner steel sleeve 2 and keeps a certain distance, then the inner steel sleeve 2 is adjusted to the inside of the outer steel sleeve 1, a proper offset amount can be selected according to different joint types, as shown in fig. 2 (a), the outer steel sleeve 1 and the inner steel sleeve 2 are arranged to have a certain offset amount, namely a socket joint structure, and the outer steel sleeve 1 and the inner steel sleeve 2 are arranged in a staggered manner; as shown in fig. 2 (b), if the offset is zero, the flat joint structure is obtained, and the two are aligned; as shown in fig. 3 and 4, the axillary angle connecting ribs 5 are welded to form an integral structure by the outside steel sleeve 1 and the inside steel sleeve 2, and then pouring is performed to form a jacking pipe body 3 (plain concrete jacking pipe), and a water-stopping rubber groove 6 on the end face of the jacking pipe joint is reserved to facilitate the arrangement 7 of subsequent water-stopping rubber.
This embodiment provides a rectangle push pipe of two steel sheet structures, through setting up two steel sheet structures in the push pipe body inboard and the outside, inboard steel sleeve and outside steel sleeve promptly, respectively with the shear connector setting of a certain amount in the assigned position (the setting of staggering in position) of inboard steel sleeve and outside steel sleeve, solved the pipe coupling dead weight too big problem, solved the comparatively weak problem of push pipe joint department simultaneously.
Although the embodiments of the present invention have been described above with reference to the accompanying drawings and examples, the present invention is not limited to the above-described embodiments and application fields, and the above-described embodiments are illustrative, instructive and not restrictive. Those skilled in the art who have the benefit of this description will be able to devise various arrangements which, while indicating the scope of the invention, are able to protect from the outside without departing from the scope of the appended claims.
Claims (10)
1. A rectangular jacking pipe with a double-steel-plate structure is characterized by comprising an outer-side steel sleeve (1), an inner-side steel sleeve (2) and a jacking pipe body (3);
the outer steel sleeve (1) is sleeved outside the inner steel sleeve (2), and the jacking pipe body (3) is positioned between the outer steel sleeve (1) and the inner steel sleeve (2);
the inner surface of the outer steel sleeve (1) and the outer surface of the inner steel sleeve (2) are both connected with a plurality of shear connectors (4), and all the shear connectors (4) are arranged in a staggered mode.
2. Rectangular pipe jacking of double steel plate structure according to claim 1, wherein said outer steel sleeve (1) and said inner steel sleeve (2) are of the same length.
3. Rectangular pipe jacking of double steel plate structure according to claim 2, wherein said outer steel sleeve (1) is aligned with said inner steel sleeve (2).
4. The rectangular jacking pipe with a double-steel-plate structure as claimed in claim 2, wherein said outer steel sleeve (1) and said inner steel sleeve (2) are arranged in a staggered manner.
5. The rectangular jacking pipe with double steel plate structure as claimed in claim 1, wherein said jacking pipe body (3) and said inner steel sleeve (2) are the same in length and are aligned.
6. The rectangular jacking pipe with the double-steel-plate structure as claimed in claim 1, wherein the outer steel sleeve (1) and the inner steel sleeve (2) are connected into an integral structure through axillary corner connecting ribs (5).
7. The rectangular jacking pipe with the double-steel-plate structure as claimed in claim 1, wherein a water-stop rubber groove (6) is arranged at the joint of the jacking pipe body (3).
8. The rectangular jacking pipe with the double-steel-plate structure as claimed in claim 7, wherein a water-stopping rubber (7) is arranged in the water-stopping rubber groove (6).
9. The rectangular jacking pipe of double steel plate structure as claimed in claim 1, wherein a pedestal is welded to the outer surface of said inner steel casing (2).
10. The rectangular jacking pipe of double steel plate structure as claimed in claim 1, wherein said shear connectors (4) are connected with said outer steel casing (1) and said inner steel casing (2) by welding, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222872927.7U CN218439395U (en) | 2022-10-28 | 2022-10-28 | Rectangular jacking pipe with double-steel-plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222872927.7U CN218439395U (en) | 2022-10-28 | 2022-10-28 | Rectangular jacking pipe with double-steel-plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218439395U true CN218439395U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222872927.7U Active CN218439395U (en) | 2022-10-28 | 2022-10-28 | Rectangular jacking pipe with double-steel-plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218439395U (en) |
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2022
- 2022-10-28 CN CN202222872927.7U patent/CN218439395U/en active Active
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