CN212318966U - Hand-digging type pipe jacking butt joint connecting structure - Google Patents
Hand-digging type pipe jacking butt joint connecting structure Download PDFInfo
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- CN212318966U CN212318966U CN202020509794.5U CN202020509794U CN212318966U CN 212318966 U CN212318966 U CN 212318966U CN 202020509794 U CN202020509794 U CN 202020509794U CN 212318966 U CN212318966 U CN 212318966U
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Abstract
The utility model discloses a hand formula push pipe butt joint connection structure that digs. The cast-in-place structure is positioned in the middle of the butt joint of the pipe joints of the top pipes on two sides; the cast-in-place structure comprises an omega steel plate, a water stop structure and structural concrete; the omega-shaped steel plate is tightly attached to the inner side of the prefabricated structure; the water stopping structure is tightly attached to the soil facing side of the prefabricated structure. The utility model has the advantages of the wholeness is stronger, leads to the percolating water because of the wrong platform when preventing the push pipe butt joint.
Description
Technical Field
The utility model relates to a civil engineering technical field, it is the formula of digging push pipe butt joint connection structure that says so more specifically.
Background
In the field of civil engineering, the pipe jacking technology is widely applied, and is particularly used in areas needing to control the deformation of the ground surface. The pipe jacking technology is divided into mechanical pipe jacking and hand-digging pipe jacking, wherein the hand-digging pipe jacking is more popularized due to simple equipment and low technical difficulty.
The digging type jacking pipe has larger dependence on geological conditions. When the distance between the jacking pipes is long, the jacking pipes face the problems of large jacking resistance, difficult propulsion and the like, and at the moment, the jacking pipes need to be respectively jacked from two sides. After the opposite-top is in place, the left distance of about 1m is usually formed by directly pouring concrete after manual excavation, at the moment, the cast-in-place part and the pipe joints of the top pipes on the two sides are three independent bodies, the integrity is poor, and meanwhile, the connection part of the middle butt joint is easy to have platform dislocation, so that the problems of water leakage and the like are caused. Causing a very adverse effect on the subsequent operation.
Therefore, there is a need to develop a connection structure of a hand-digging type push pipe butt joint that has high integrity and prevents water leakage at the butt joint connection part due to dislocation.
Disclosure of Invention
The utility model aims at providing a hand formula push pipe butt joint connection structure digs, the wholeness is stronger, can effectively prevent the percolating water problem that butt joint connecting portion leads to because of the wrong platform.
In order to realize the purpose, the technical scheme of the utility model is that: hand formula push pipe butt joint connection structure, its characterized in that: the cast-in-place structure is positioned in the middle of the butt joint of the pipe joints of the top pipes on two sides;
the cast-in-place structure comprises an omega steel plate, a water stop structure and structural concrete; the omega-shaped steel plate is tightly attached to the inner side of the prefabricated structure; the water stopping structure is tightly attached to the soil facing side of the prefabricated structure.
In the technical scheme, the prefabricated structure comprises an embedded longitudinal steel plate and an embedded circumferential steel plate;
the embedded longitudinal steel plate is positioned outside the end head of the first section of the pipe jacking pipe joint;
the embedded annular steel plate is positioned on the soil facing side of the end head of the first section of the jacking pipe joint.
In the technical scheme, the omega-shaped steel plate is fixedly welded on the inner side of the embedded longitudinal steel plate;
the water stopping structure is attached to the soil facing side of the embedded annular steel plate.
In the technical scheme, the embedded longitudinal steel plate, the embedded annular steel plate and the omega-shaped steel plate enclose a pouring joint;
the structural concrete is cast at the casting joints.
In the technical scheme, the thickness of the embedded longitudinal steel plate is 1-2 cm; the thickness of the embedded annular steel plate is 1-2 cm.
In the technical scheme, the length of the embedded longitudinal steel plate is 1.5-3.0 m, and the length of the embedded longitudinal steel plate extends out of a first section pipe joint part of the jacking pipe by 0.3-1.0 m.
In the technical scheme, the length of the omega-shaped steel plate is 40-60 cm, and the omega-shaped steel plate is of an omega-shaped structure.
The utility model has the advantages of as follows:
(1) the pre-buried longitudinal steel plate of the utility model is positioned at the front end of the first pipe joint, helps to cut soil in the jacking process of the jacking pipe, and plays a role of advanced support at the same time, so that the construction of the jacking pipe is more convenient and safer;
(2) after the two-side jacking pipes are in place, the pre-buried longitudinal steel plates are positioned outside the end heads of the first-section jacking pipe joints, partially extend out of the first-section jacking pipe joints and adopt the pre-buried longitudinal steel plates on the two sides of the connection of the omega-shaped steel plates, thereby effectively eliminating the hidden danger of water leakage caused by dislocation and enhancing the integrity of the joint; the water stop structure provided by the utility model further prevents the groundwater from entering; the problem of water leakage caused by platform dislocation during the butt joint of the traditional hand-digging type jacking pipe is solved, and the safety of the structure in the operation period is ensured;
(3) the utility model provides a welding surface for the steel bar framework of the cast-in-place structure, so that the butt joint connecting structure forms a whole, and the integrity of the joint is enhanced;
(4) the utility model is simple in operation, nimble, use cost is low, and the practicality is strong.
Drawings
Fig. 1 is a schematic view of the butt joint structure of the present invention.
Fig. 2 is a simplified cross-sectional view of the butt joint structure of the present invention.
In fig. 1, a indicates a dislocation at the butt joint connection portion.
In the figure, 1-a prefabricated structure, 11-an embedded longitudinal steel plate, 12-an embedded circumferential steel plate, 13-a first section of a top pipe joint, 2-a cast-in-place structure, 21-omega steel plates, 22-a water stop structure, 23-structural concrete and 3-a pouring joint are adopted.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily appreciated by the description.
With reference to the accompanying drawings: the hand-digging type top pipe butt joint connecting structure comprises a prefabricated structure 1 and a cast-in-place structure 2, wherein the prefabricated structure 1 is positioned on a top pipe joint 13 of a top pipe, and the cast-in-place structure 2 is positioned in the middle of the butt joint of the top pipe joints 13 on two sides; the utility model carries out soil cutting and advance support on the prefabricated structure 1, increases the structural stability and improves the butt joint precision;
the cast-in-place structure 2 comprises an omega steel plate 21, a water stopping structure 22 and structural concrete 23; the omega steel plate is used for solving the problems of water leakage and the like caused by dislocation;
the omega-shaped steel plate 21 is tightly attached to the inner side of the prefabricated structure 1, the integrity of a connection structure of the hand-digging type jacking pipe butt joint is improved, and the water leakage defect caused by slab staggering is eliminated; the water stopping structure 22 is tightly attached to the soil facing side of the prefabricated structure 1 (shown in figure 1); the water stopping structure 22 serves to further block the groundwater from entering the butt joint connection part.
Further, the water stopping structure 22 adopts a strip-shaped water stopping material (as shown in fig. 1 and fig. 2); the joint is a weak link, and the water stopping structure 22 adopts a strip water stopping material to prevent groundwater from permeating into the pipe jacking from the joint.
Furthermore, the water stopping structure adopts a water swelling water stopping adhesive tape; the water stop structure 22 is made of a material having water swelling properties, and further prevents groundwater from penetrating into the pipe jacking from the joint.
Further, the prefabricated structure 1 comprises an embedded longitudinal steel plate 11 and an embedded circumferential steel plate 12;
the embedded longitudinal steel plate 11 is positioned outside the end head of the first section of the jacking pipe joint 13; the embedded longitudinal steel plate 11 is used for increasing rigidity, connecting the omega-shaped steel plate 21 and improving the integrity of a connecting structure of the butt joint of the jacking pipe;
the embedded annular steel plate 12 is positioned on the soil facing side of the end head of the first section of the pipe jacking pipe joint 13; the annular steel plate 12 is used for providing a welding surface for the embedded longitudinal steel plate 11, the integrity of the prefabricated structure 1 is improved, and the problems that the embedded longitudinal steel plate 11 is likely to fall off, turn on one side and the like in the pushing process are solved.
Furthermore, the omega-shaped steel plate 21 is welded and fixed on the inner side of the embedded longitudinal steel plate 11, so that the integrity of a connecting structure of the butt joint of the jacking pipe is improved, and the defect of water leakage caused by slab staggering is eliminated;
the water stopping structure 22 is tightly attached to the soil facing side of the embedded annular steel plate 12 and used for further preventing underground water from entering the pipe jacking butt joint connecting structure.
Further, the embedded longitudinal steel plate 11, the embedded circumferential steel plate 12 and the omega-shaped steel plate 21 enclose a casting joint 3; the omega steel plate and the embedded annular steel plate provide a welding surface for a cast-in-place structural steel bar framework, so that a butt joint connecting structure forms a whole, and the integrity of the joint is enhanced;
the structural concrete 23 is poured at the pouring joint 3 (as shown in fig. 1 and 2), so that the pouring joint 3 is formed into a whole.
Further, the thickness of the embedded longitudinal steel plate 11 is 1-2 cm; the thickness of the embedded annular steel plate 12 is 1-2 cm.
Further, the length of the embedded longitudinal steel plate 11 is 1.5-3.0 m, and the part of the embedded longitudinal steel plate extending out of the pipe joint 13 of the first section of the jacking pipe is 0.3-1.0 m.
Further, the length of the omega-shaped steel plate 21 is 40-60 cm, and the omega-shaped steel plate 21 is of an omega-shaped structure; the omega-shaped steel plate 21 is a steel plate with certain deformability, two sides of the omega-shaped steel plate are flat, the middle of the omega-shaped steel plate is bent and convex, and the bent part has deformability.
The construction method of the hand-digging type pipe-jacking butt joint connecting structure of the utility model comprises the following steps,
the method comprises the following steps: the method comprises the following steps that a pre-buried longitudinal steel plate 11 and a pre-buried annular steel plate 12 are respectively arranged on a first pipe section 13 of a jacking pipe, wherein the two sides of the first pipe section are arranged opposite to each other;
step two: jacking pipes on two sides, and performing soil cutting and advanced support by using the pre-embedded longitudinal steel plates 11 until the jacking is in place;
step three: digging out middle soil at the position of the pouring joint 3, welding omega-shaped steel plates 21 on the inner sides of the embedded longitudinal steel plates 11 at two sides, increasing the integrity of a connection structure of the hand-digging type top pipe butt joint, and eliminating the water leakage defect caused by slab staggering;
step four: arranging water stopping structures 22 on the embedded annular steel plates 12 on the two sides;
step five: erecting a cast-in-place structural steel bar framework at the position of the pouring joint 3, and welding steel bars on the omega-shaped steel plate 21 and the embedded annular steel plate 12 to form a whole body by the cast-in-place structure and the top pipe first-section pipe joints 13 on the two sides;
step six: and pouring structural concrete 23 on the joints 3 in situ, and curing and forming (as shown in figures 1 and 2).
In order to illustrate more clearly the utility model discloses a hand formula push pipe butt joint connection structure compare the advantage that has with prior art, the staff has carried out the contrast with these two kinds of technical scheme, its contrast result is as follows:
can know by last table, hand formula push pipe butt joint connection structure compare with prior art, the construction safety is high during the push pipe tunnelling, the joint wholeness is stronger, can effectively prevent the percolating water condition that butt joint connection part leads to because of wrong platform, use cost is lower.
Other parts not described belong to the prior art.
Claims (7)
1. Hand formula push pipe butt joint connection structure, its characterized in that: the cast-in-place structure comprises a prefabricated structure (1) and a cast-in-place structure (2), wherein the prefabricated structure (1) is positioned on a first pipe joint (13) of a jacking pipe, and the cast-in-place structure (2) is positioned in the middle of the butt joint of the pipe joints (13) of the jacking pipes on two sides;
the cast-in-place structure (2) comprises an omega steel plate (21), a water stop structure (22) and structural concrete (23); the omega steel plate (21) is tightly attached to the inner side of the prefabricated structure (1); the water stopping structure (22) is tightly attached to the soil facing side of the prefabricated structure (1).
2. The connection structure of the digging type pipe jacking butt joint according to claim 1, wherein: the prefabricated structure (1) comprises an embedded longitudinal steel plate (11) and an embedded annular steel plate (12);
the embedded longitudinal steel plate (11) is positioned outside the end head of the first section of the jacking pipe joint (13);
the embedded annular steel plate (12) is positioned on the soil facing side of the end head of the first section of the jacking pipe joint (13).
3. The connection structure of the digging type pipe jacking butt joint according to claim 2, wherein: the omega steel plate (21) is fixedly welded on the inner side of the embedded longitudinal steel plate (11);
the water stopping structure (22) is tightly attached to the soil facing side of the embedded annular steel plate (12).
4. The connection structure of the digging type pipe jacking butt joint according to claim 3, wherein: the embedded longitudinal steel plate (11), the embedded annular steel plate (12) and the omega-shaped steel plate (21) enclose a pouring joint (3);
the structural concrete (23) is cast at the casting joint (3).
5. The connection structure of the digging type pipe jacking butt joint according to claim 4, wherein: the thickness of the embedded longitudinal steel plate (11) is 1-2 cm; the thickness of the embedded annular steel plate (12) is 1-2 cm.
6. The connection structure of the digging type pipe jacking butt joint according to claim 5, wherein: the length of the embedded longitudinal steel plate (11) is 1.5-3.0 m, and the part of the embedded longitudinal steel plate extending out of the first section pipe joint (13) of the jacking pipe is 0.3-1.0 m.
7. The connection structure of the digging type pipe jacking butt joint according to claim 6, wherein: the length of the omega-shaped steel plate (21) is 40-60 cm, and the omega-shaped steel plate (21) is of an omega-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020509794.5U CN212318966U (en) | 2020-04-09 | 2020-04-09 | Hand-digging type pipe jacking butt joint connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020509794.5U CN212318966U (en) | 2020-04-09 | 2020-04-09 | Hand-digging type pipe jacking butt joint connecting structure |
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| CN212318966U true CN212318966U (en) | 2021-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350876A (en) * | 2020-04-09 | 2020-06-30 | 长江勘测规划设计研究有限责任公司 | Hand-digging type pipe jacking butt joint connecting structure and construction method thereof |
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2020
- 2020-04-09 CN CN202020509794.5U patent/CN212318966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350876A (en) * | 2020-04-09 | 2020-06-30 | 长江勘测规划设计研究有限责任公司 | Hand-digging type pipe jacking butt joint connecting structure and construction method thereof |
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