CN110925489A - Opposite jacking and butt joint construction method for finished pipes - Google Patents
Opposite jacking and butt joint construction method for finished pipes Download PDFInfo
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- CN110925489A CN110925489A CN201911290779.4A CN201911290779A CN110925489A CN 110925489 A CN110925489 A CN 110925489A CN 201911290779 A CN201911290779 A CN 201911290779A CN 110925489 A CN110925489 A CN 110925489A
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- pipe
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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
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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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
- F16L1/06—Accessories therefor, e.g. anchors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a construction method for opposite jacking and butt joint of finished pipes, which comprises the following steps: digging two working wells, selecting an initial point, installing a jack and connecting the jack with a tool pipe, connecting a guide ring on the tool pipe, pushing the tool pipe into a soil body through the jack, continuously putting a new finished product pipe, and gradually pushing the guide ring in opposite directions into the soil body until the guide ring is butted and folded. By adopting the technical scheme of the invention, the steel guide ring is fixedly connected on the first section of the tool pipe, the guide ring plays a role in guiding the propelling of the finished product pipe, the finished product pipe can be jacked into the ground soil body for a longer distance under the condition of the same propelling force, the requirement of laying construction of a long-distance underground pipeline is met, various obstacles encountered in the underground soil body can be eliminated in the propelling process of the finished product pipe, and the tool pipe or the finished product pipe can be always propelled into the soil body along a straight line by enabling the propelling force of the jack to be uniformly acted on the tool pipe or the finished product pipe, so that the construction quality is improved.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a construction method for opposite jacking and butt joint of finished pipes.
Background
When underground pipelines are laid for construction, a pipe jacking construction method is the preferred construction method, because the construction method has the greatest and best possibility of removing obstacles, in the prior art, the pipe jacking construction method mostly adopts a one-way jacking construction method, along with the development of the society, the construction requirements of people on the underground pipelines are higher and higher, the laying distance of the underground pipelines is longer and longer, the surrounding environment at the laying position of the underground pipelines is more and more complex, and the one-way jacking construction method can not meet the field construction requirements far away and can not lay the underground pipelines at longer distances.
Disclosure of Invention
In order to solve the technical problem, the invention provides a construction method for butting finished pipes in opposite jacking directions.
The invention is realized by the following technical scheme.
The invention provides a construction method for opposite jacking and butt joint of finished pipes, which comprises the following steps:
the method comprises the following steps: excavating earth on the ground to form two working wells (10);
step two: providing two tool pipes (1) and a plurality of jacks, selecting one position with the same depth on the inner wall of one side of the two working wells (10) in the step one as an initial point, respectively installing a plurality of jacks around the initial point, respectively lowering the two tool pipes (1) into the working wells (10) and enabling the central axis of the tool pipes (1) to coincide with the initial point;
step three: one end of the tool pipe (1) is fixedly connected with a steel guide ring (2), and a propelling force is applied to the other end of the tool pipe (1) through the jack installed in the second step, so that the two tool pipes (1) are oppositely propelled to the ground soil, and then the soil in the tool pipes (1) is excavated and moved out;
step four: providing two finished pipes, respectively lowering the two finished pipes into a working well (10) and enabling the central axis of each finished pipe to coincide with the initial point;
step five: applying a propelling force to the finished pipe through the jack installed in the second step, simultaneously propelling the finished pipe and the tool pipe (1) into a ground soil body, and excavating and moving out the soil body in the finished pipe;
step six: and repeating the fourth step and the fifth step until the guide ring (2) in the second step is in butt joint contact with the ground soil body.
In the second step, the number of jacks arranged in the working well (10) is even.
In the second step, a plurality of jacks arranged in the working well (10) are uniformly arranged in an array by taking the initial point as a center.
And in the second step, a cushion block is further arranged between the jack and the joint of the inner wall of the working well (10), and the cushion block is made of iron.
The tail end of the piston rod of the jack is sleeved with a buffer gasket.
The construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
and in the second step, after a plurality of jacks are respectively arranged around the initial point, digging soil on the inner wall of the working well (10) on the other side opposite to the initial point to form a guide hole, and in the third step or the fifth step, when a finished product pipe or a tool pipe (1) is pushed in by the jacks, enabling the finished product pipe or the tool pipe (1) to pass through the guide hole.
The depth of the guide hole is 20-30 cm.
When the finished pipe or the tool pipe (1) is pushed into the step three or the step five by a jack, the pushing depth of the finished pipe or the tool pipe (1) is 1.5-1.7 m each time.
The construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
and after the sixth step is finished, welding a steel plate at the butt joint part of the guide rings (2) so that the two guide rings (2) are connected into a whole through the steel plate.
The tool tube (1) is in a cylindrical shape formed by pouring concrete.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the construction mode of oppositely propelling the finished product pipe is adopted, under the condition of the same propelling force, the steel guide ring is fixedly connected on the first section of tool pipe, so that the finished product pipe can be propelled to a longer distance within the underground soil body under the guide of the guide ring, the requirement of laying construction of a long-distance underground pipeline is met, the finished product pipe can be more stably propelled under the guide of the guide ring, and various obstacles encountered within the underground soil body can be smoothly removed during the propelling process of the finished product pipe The method comprises the following steps of building concrete, enabling all finished product pipes to be connected into a whole, carrying out underground engineering operation construction by adopting the method, enabling the poured concrete to be capable of being successfully and successively solidified to a required strength level in an underground humid environment, avoiding shrinkage cracks in the solidification process, and improving construction quality.
Drawings
FIG. 1 is a flow chart of the construction method of the present invention;
FIG. 2 is a schematic view of the tool tube of the present invention in butt-joint;
FIG. 3 is a schematic structural view of the concrete pouring apparatus of the present invention;
FIG. 4 is a schematic diagram of the calibration system of the present invention.
In the figure: 1-tool pipe, 2-guide ring, 3-air compressor, 4-air storage tank, 5-feeding hopper, 6-marker rod, 7-theodolite, 8-target, 9-laser emitter and 10-working well.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 and 2, the invention provides a construction method for butting finished pipes in opposite jacking directions, which comprises the following steps:
the method comprises the following steps: excavating earth on the ground to form two working wells 10;
step two: providing two tool pipes 1 and a plurality of jacks, selecting one position with the same depth on the inner wall of one side of the two working wells 10 in the step one as an initial point, respectively installing a plurality of jacks around the initial point, respectively lowering the two tool pipes 1 into the working wells 10, and enabling the central axis of the tool pipe 1 to coincide with the initial point; preferably, the guide ring 2 is in a conical cylinder shape with a large opening at the outer end and a small opening at the inner end; preferably, in the second step, the number of jacks installed in the working well 10 is even. A plurality of jacks installed within the working well 10 are deployed in a uniform array centered on an initiation point. And a cushion block is also arranged between the jack and the joint of the inner wall of the working well 10, and the cushion block is made of iron. The tail end of the piston rod of the jack is sleeved with a buffer gasket. By adopting the technical scheme of the invention, the jack can more stably push the tool pipe into the soil along a straight line by arranging the buffer liner, and a foundation is laid for improving the construction precision.
Step three: one end of the tool pipe 1 is fixedly connected with a steel guide ring 2, the other end of the tool pipe 1 is applied with propelling force through the jack installed in the second step, so that the two tool pipes 1 are oppositely propelled to the ground soil, and then the soil in the tool pipes 1 is excavated and moved out; further, when the finished pipe or the tool pipe 1 is pushed by the jack, the pushing depth of the finished pipe or the tool pipe 1 is 1.5-1.7 m each time.
Step four: providing two finished product pipes, respectively lowering the two finished product pipes into the working well 10, and enabling the central axis of each finished product pipe to coincide with the initial point;
step five: applying a propelling force to the finished product pipe through the jack installed in the second step, simultaneously propelling the finished product pipe and the tool pipe 1 into a ground soil body, and excavating and moving out the soil body in the finished product pipe;
step six: and repeating the fourth step to the fifth step until the guide ring 2 in the second step is in butt contact with the ground soil body.
In addition, the construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
after installing a plurality of jacks around the initial point in the second step, digging soil on the inner wall of the working well 10 on the other side opposite to the initial point to form a guide hole, and when the third step or the fifth step is performed, when the product pipe or the tool pipe 1 is pushed by the jacks, enabling the product pipe or the tool pipe 1 to pass through the guide hole. Preferably, the depth of the guide hole is 20-30 cm.
In addition, the construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
after the sixth step is completed, a steel plate is welded at the butt-joint contact part of the guide ring 2, so that the two guide rings 2 are connected into a whole through the steel plate. The steel plate thickness is preferably 10 mm. The tool tube 1 is a cylindrical shape cast with concrete.
Further, as shown in fig. 3, the construction method for butting the finished pipes in opposite directions further comprises the following steps:
before step six, a concrete pouring device is arranged outside the working well 10, after step six is completed, concrete is poured at the joint of two adjacent finished product pipes, the concrete enters the space between the outer wall of each finished product pipe and the underground soil body through the gap between the two adjacent finished product pipes, after the concrete is condensed, the two adjacent finished product pipes are connected into a whole, the concrete pouring device comprises a gas storage tank 4, a feeding hopper 5 and a plurality of air compressors 3, the air compressors 3 are connected to the input end of the gas storage tank 4 in parallel, the output end of the gas storage tank 4 is connected into the feeding hopper 5 through a gas supply pipeline, the feeding hopper 5 is further connected with a feeding pipe, and the feeding pipe extends into the finished product pipes. Preferably, the number of the air compressors 3 is 3. The output pressure of the air compressor 3 is 0.3 MPa.
In addition, the concrete is poured from bottom to top in a sectional pouring mode, and the next concrete pouring is carried out after the concrete setting strength grade reaches an initial setting state after the concrete is poured between every two times, wherein the initial setting state refers to the state that the concrete setting strength reaches more than 70% of the strength of the preset complete setting state. Furthermore, the sectional pouring mode means that concrete is poured for three times and correspondingly for three sections, and the ratio of the coverage area of the three sections of poured concrete is 2:1: 2.
Meanwhile, as shown in fig. 4, the construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
after the second step or the fourth step is completed, the advancing direction of the finished product pipe can be corrected by a pipe jacking direction calibration system, and the method specifically comprises the following steps: erecting a marker post 6 at the middle point of the connecting line of two working wells 10, respectively arranging a theodolite 7 and a target 8 at the opposite side edges of the well mouths of the working wells 10, enabling the connecting line between the theodolite 7 and the target 8 to be collinear with the connecting line between the working wells 10 and the working wells 10, installing a laser transmitter 9 at an initial point, enabling a laser beam emitted by the laser transmitter 9 along the horizontal direction and the connecting line between the theodolite 7 and the target 8 to be in the same vertical plane, adjusting the propelling direction of the finished pipe by adjusting the mounting posture of a jack, and dismantling the pipe jacking direction calibration system and carrying out the next step when the distance between the laser beam emitted by the laser transmitter 9 and the central axis of the finished pipe is less than 15 mm.
By adopting the technical scheme of the invention, the construction mode of oppositely propelling the finished product pipe is adopted, under the condition of the same propelling force, the steel guide ring is fixedly connected on the first section of tool pipe, so that the finished product pipe can be propelled to a longer distance within the underground soil body under the guide of the guide ring, the requirement of laying construction of a long-distance underground pipeline is met, the finished product pipe can be more stably propelled under the guide of the guide ring, and various obstacles encountered within the underground soil body can be smoothly removed during the propelling process of the finished product pipe The method comprises the following steps of building concrete, enabling all finished product pipes to be connected into a whole, carrying out underground engineering operation construction by adopting the method, enabling the poured concrete to be capable of being successfully and successively solidified to a required strength level in an underground humid environment, avoiding shrinkage cracks in the solidification process, and improving construction quality.
Claims (10)
1. A finished product pipe opposite jacking butt joint construction method is characterized in that: the method comprises the following steps:
the method comprises the following steps: excavating earth on the ground to form two working wells (10);
step two: providing two tool pipes (1) and a plurality of jacks, selecting one position with the same depth on the inner wall of one side of the two working wells (10) in the step one as an initial point, respectively installing a plurality of jacks around the initial point, respectively lowering the two tool pipes (1) into the working wells (10) and enabling the central axis of the tool pipes (1) to coincide with the initial point;
step three: one end of the tool pipe (1) is fixedly connected with a steel guide ring (2), and a propelling force is applied to the other end of the tool pipe (1) through the jack installed in the second step, so that the two tool pipes (1) are oppositely propelled to the ground soil, and then the soil in the tool pipes (1) is excavated and moved out;
step four: providing two finished pipes, respectively lowering the two finished pipes into a working well (10) and enabling the central axis of each finished pipe to coincide with the initial point;
step five: applying a propelling force to the finished pipe through the jack installed in the second step, simultaneously propelling the finished pipe and the tool pipe (1) into a ground soil body, and excavating and moving out the soil body in the finished pipe;
step six: and repeating the fourth step and the fifth step until the guide ring (2) in the second step is in butt joint contact with the ground soil body.
2. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: in the second step, the number of jacks arranged in the working well (10) is even.
3. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: in the second step, a plurality of jacks arranged in the working well (10) are uniformly arranged in an array by taking the initial point as a center.
4. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: and in the second step, a cushion block is further arranged between the jack and the joint of the inner wall of the working well (10), and the cushion block is made of iron.
5. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: the tail end of the piston rod of the jack is sleeved with a buffer gasket.
6. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: the construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
and in the second step, after a plurality of jacks are respectively arranged around the initial point, digging soil on the inner wall of the working well (10) on the other side opposite to the initial point to form a guide hole, and in the third step or the fifth step, when a finished product pipe or a tool pipe (1) is pushed in by the jacks, enabling the finished product pipe or the tool pipe (1) to pass through the guide hole.
7. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 6, wherein: the depth of the guide hole is 20-30 cm.
8. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: when the finished pipe or the tool pipe (1) is pushed into the step three or the step five by a jack, the pushing depth of the finished pipe or the tool pipe (1) is 1.5-1.7 m each time.
9. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: the construction method for butting the finished pipes in opposite jacking directions further comprises the following steps:
and after the sixth step is finished, welding a steel plate at the butt joint part of the guide rings (2) so that the two guide rings (2) are connected into a whole through the steel plate.
10. The opposite jacking and butt joint construction method for the finished pipes as claimed in claim 1, wherein: the tool tube (1) is in a cylindrical shape formed by pouring concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290779.4A CN110925489A (en) | 2019-12-12 | 2019-12-12 | Opposite jacking and butt joint construction method for finished pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290779.4A CN110925489A (en) | 2019-12-12 | 2019-12-12 | Opposite jacking and butt joint construction method for finished pipes |
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| CN110925489A true CN110925489A (en) | 2020-03-27 |
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| CN201911290779.4A Pending CN110925489A (en) | 2019-12-12 | 2019-12-12 | Opposite jacking and butt joint construction method for finished pipes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669503A (en) * | 2021-08-17 | 2021-11-19 | 中国水利水电第九工程局有限公司 | Down-through road pipe jacking construction process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5039253A (en) * | 1988-01-28 | 1991-08-13 | Kantovich Leonid I | Method for trenchless laying of pipes and an arrangement for carrying out the method |
| EP0613992A1 (en) * | 1993-03-03 | 1994-09-07 | Tokyo Gas Co., Ltd. | Method for driving pipes into the ground |
| 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 |
| CN103046638A (en) * | 2011-04-28 | 2013-04-17 | 朱奎 | Pipe jacking construction method |
| CN103292035B (en) * | 2013-05-24 | 2015-06-10 | 中国华冶科工集团有限公司 | Construction method of underground pipe jacking |
| CN206191060U (en) * | 2016-10-08 | 2017-05-24 | 安顺集团建设有限公司 | Gas pipeline push pipe construction structures |
| CN106369223B (en) * | 2016-10-31 | 2018-04-10 | 中铁二十局集团第五工程有限公司 | A kind of silt stratum pipe jacking construction method |
-
2019
- 2019-12-12 CN CN201911290779.4A patent/CN110925489A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5039253A (en) * | 1988-01-28 | 1991-08-13 | Kantovich Leonid I | Method for trenchless laying of pipes and an arrangement for carrying out the method |
| EP0613992A1 (en) * | 1993-03-03 | 1994-09-07 | Tokyo Gas Co., Ltd. | Method for driving pipes into the ground |
| 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 |
| CN103046638A (en) * | 2011-04-28 | 2013-04-17 | 朱奎 | Pipe jacking construction method |
| CN103292035B (en) * | 2013-05-24 | 2015-06-10 | 中国华冶科工集团有限公司 | Construction method of underground pipe jacking |
| CN206191060U (en) * | 2016-10-08 | 2017-05-24 | 安顺集团建设有限公司 | Gas pipeline push pipe construction structures |
| CN106369223B (en) * | 2016-10-31 | 2018-04-10 | 中铁二十局集团第五工程有限公司 | A kind of silt stratum pipe jacking construction method |
Non-Patent Citations (1)
| Title |
|---|
| 高乃熙，张小珠: "《顶管技术》", 31 August 1984, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669503A (en) * | 2021-08-17 | 2021-11-19 | 中国水利水电第九工程局有限公司 | Down-through road pipe jacking construction process |
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Application publication date: 20200327 |