CN111350876A - Hand-digging type pipe jacking butt joint connecting structure and construction method thereof - Google Patents
Hand-digging type pipe jacking butt joint connecting structure and construction method thereof Download PDFInfo
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- CN111350876A CN111350876A CN202010275073.7A CN202010275073A CN111350876A CN 111350876 A CN111350876 A CN 111350876A CN 202010275073 A CN202010275073 A CN 202010275073A CN 111350876 A CN111350876 A CN 111350876A
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- steel plate
- jacking
- butt joint
- pipe
- embedded
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- 210000001503 joint Anatomy 0.000 title claims abstract description 57
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 104
- 239000010959 steel Substances 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002689 soil Substances 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229910000746 Structural steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/038—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being made in situ
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a connection structure of a hand-digging type pipe jacking butt joint. 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 invention has the advantages of stronger integrity and prevention of water leakage caused by dislocation when the jacking pipes are butted. The invention also discloses a construction method of the connection structure of the digging type pipe jacking butt joint.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a hand-digging type pipe jacking butt joint connecting structure. The invention also relates to a construction method of the connection structure of the hand-digging type pipe jacking butt joint.
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, it is necessary to develop a hand-driving pipe-jacking butt joint connection structure and a construction method thereof, which have high integrity and prevent water leakage at the butt joint connection part due to dislocation.
Disclosure of Invention
The first purpose of the invention is to provide a connection structure of a hand-digging type pipe-jacking butt joint, which has strong integrity and can effectively prevent the problem of water leakage caused by dislocation of the butt joint connection part.
The second purpose of the invention is to provide the construction method of the connection structure of the hand-digging type pipe jacking butt joint, which has the advantages of simple and flexible operation, low use cost and strong practicability.
In order to achieve the first object of the present invention, the technical solution of the present invention is: 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 above technical solution, the water stopping structure adopts a strip-shaped water stopping material.
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.
In order to achieve the second object of the present invention, the technical solution of the present invention is: the construction method of the connection structure of the digging type pipe jacking butt joint is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: the method comprises the following steps that pre-buried longitudinal steel plates and pre-buried annular steel plates are respectively arranged on first pipe joints of jacking pipes which are arranged in a manner of abutting against the two sides;
step two: butting two side jacking pipes, and performing soil cutting and advanced support by using the pre-embedded longitudinal steel plates until the butting pipes are in place;
step three: digging out middle soil at the position of a pouring joint, and welding omega-shaped steel plates on the inner sides of the embedded longitudinal steel plates at two sides;
step four: arranging water stopping structures on the embedded annular steel plates on the two sides;
step five: erecting a cast-in-place structural steel bar framework at the position of the pouring joint, and welding steel bars on the omega steel plate and the embedded annular steel plate;
step six: and pouring structural concrete at the joint in a cast-in-place manner, and maintaining and forming.
The invention has the following advantages:
(1) the embedded longitudinal steel plate is positioned at the front end of the first section of pipe joint, helps to cut soil in the jacking process of the jacking pipe, and plays a role in advanced support, so that the jacking pipe construction is more convenient and safer;
(2) after the two-side jacking pipes are in place, the embedded longitudinal steel plates are positioned outside the end heads of the first-section jacking pipe joints and partially extend out of the first-section jacking pipe joints, and the embedded longitudinal steel plates on the two sides are connected by adopting the omega-shaped steel plates, so that the hidden danger of water leakage caused by dislocation is effectively eliminated, and the integrity of the joints is enhanced; the water stop structure further prevents the underground water 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 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;
(4) the invention has simple and flexible operation, low use cost and strong practicability.
Drawings
FIG. 1 is a schematic view of a butt joint structure according to the present invention.
Fig. 2 is a simplified cross-sectional view of a 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 embodiments of the present invention will be described in detail 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 understood 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; according to the invention, the prefabricated structure 1 is subjected to soil cutting and advance support, so that the structural stability is improved and the butt joint precision is improved;
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.
With reference to the accompanying drawings: the construction method of the connection structure of the digging type pipe jacking butt joint 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 more clearly illustrate the advantages of the connection structure of the digging type pipe jacking butt joint and the construction method thereof in comparison with the prior art, the two technical schemes are compared by workers, and the comparison results are as follows:
the above table shows that compared with the prior art, the hand-digging type pipe-jacking butt joint connecting structure and the construction method thereof have the advantages that the construction safety is high during pipe jacking tunneling, the integrity of the joint is strong, the water leakage condition caused by dislocation of the butt joint connecting part can be effectively prevented, and the use cost is low.
Other parts not described belong to the prior art.
Claims (9)
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 water stopping structure (22) adopts a strip-shaped water stopping material.
3. The connection structure of the digging type pipe jacking butt joint according to claim 2, 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).
4. The connection structure of the digging type pipe jacking butt joint according to claim 3, 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).
5. The connection structure of the digging type pipe jacking butt joint according to claim 4, 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).
6. The connection structure of the digging type pipe jacking butt joint according to claim 5, 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.
7. The connection structure of the digging type pipe jacking butt joint according to claim 6, 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.
8. The connection structure of the digging type pipe jacking butt joint according to claim 7, 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.
9. The construction method of the connection structure of the digging type pipe jacking butt joint according to any one of claims 1 to 8, characterized in that: comprises the following steps of (a) carrying out,
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 which is arranged in a manner of abutting against the two sides;
step two: jacking pipes on two sides, and cutting soil and performing 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), and welding omega-shaped steel plates (21) on the inner sides of the embedded longitudinal steel plates (11) on the two sides;
step four: a water stopping structure (22) is arranged 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 steel plate (21) and the embedded annular steel plate (12);
step six: and pouring structural concrete (23) at the joint (3) in situ, and maintaining and forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010275073.7A CN111350876A (en) | 2020-04-09 | 2020-04-09 | Hand-digging type pipe jacking butt joint connecting structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010275073.7A CN111350876A (en) | 2020-04-09 | 2020-04-09 | Hand-digging type pipe jacking butt joint connecting structure and construction method thereof |
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| CN111350876A true CN111350876A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010275073.7A Pending CN111350876A (en) | 2020-04-09 | 2020-04-09 | Hand-digging type pipe jacking butt joint connecting structure and construction method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11247304A (en) * | 1998-03-03 | 1999-09-14 | Shimizu Corp | Joint structure of rc construction |
| CN101788082A (en) * | 2009-12-21 | 2010-07-28 | 上海市第一市政工程有限公司 | Construction method for abutting jack pipe underground |
| CN203770834U (en) * | 2014-04-18 | 2014-08-13 | 山东龙泉管道工程股份有限公司 | Intermediate relaying jacking pipe for prestressed concrete cylinder pipe for use in jacking construction method |
| CN204477493U (en) * | 2015-02-10 | 2015-07-15 | 浙江宝田环境建设有限公司 | A kind of waterproof jacking pipe joints bellmouth jointing structure |
| CN109027418A (en) * | 2018-08-30 | 2018-12-18 | 上海隧道工程有限公司 | Pipe jacking tunnel concrete tube coupling |
| CN109667985A (en) * | 2018-12-26 | 2019-04-23 | 上海市政建设有限公司 | The method that push-bench is docked with received well steel sleeve in jacking construction |
| CN212318966U (en) * | 2020-04-09 | 2021-01-08 | 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 |
-
2020
- 2020-04-09 CN CN202010275073.7A patent/CN111350876A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11247304A (en) * | 1998-03-03 | 1999-09-14 | Shimizu Corp | Joint structure of rc construction |
| CN101788082A (en) * | 2009-12-21 | 2010-07-28 | 上海市第一市政工程有限公司 | Construction method for abutting jack pipe underground |
| CN203770834U (en) * | 2014-04-18 | 2014-08-13 | 山东龙泉管道工程股份有限公司 | Intermediate relaying jacking pipe for prestressed concrete cylinder pipe for use in jacking construction method |
| CN204477493U (en) * | 2015-02-10 | 2015-07-15 | 浙江宝田环境建设有限公司 | A kind of waterproof jacking pipe joints bellmouth jointing structure |
| CN109027418A (en) * | 2018-08-30 | 2018-12-18 | 上海隧道工程有限公司 | Pipe jacking tunnel concrete tube coupling |
| CN109667985A (en) * | 2018-12-26 | 2019-04-23 | 上海市政建设有限公司 | The method that push-bench is docked with received well steel sleeve in jacking construction |
| CN212318966U (en) * | 2020-04-09 | 2021-01-08 | 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 |
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