CN114658921B - Pipe-jacking pipeline reinforcement construction method - Google Patents
Pipe-jacking pipeline reinforcement construction method Download PDFInfo
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- CN114658921B CN114658921B CN202210188010.7A CN202210188010A CN114658921B CN 114658921 B CN114658921 B CN 114658921B CN 202210188010 A CN202210188010 A CN 202210188010A CN 114658921 B CN114658921 B CN 114658921B
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- pipe
- pipe joint
- target pipe
- plate
- rib
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 230000002787 reinforcement Effects 0.000 title claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- 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
-
- 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
-
- 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
- F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Abstract
The application provides a pipe-jacking pipeline reinforcement construction method, which comprises the following steps: step S1, fixing jacking equipment at the deformation position of a target pipe joint; step S2, starting jacking equipment, enabling the jacking equipment to squeeze the deformation part along the radial direction of the target pipe joint, and correcting the target pipe joint; s3, arranging an annular supporting plate at one end of the inner wall of the target pipe joint, and dismantling jacking equipment after the supporting plate is fixed; s4, arranging a plurality of rib plates on one side of the support plate corresponding to the area to be reinforced, and arranging another support plate on the other end of each rib plate; and S5, repeating the construction of the rib plates and the supporting plates at least once so as to strengthen the target pipe joint. The jacking equipment corrects the deformation, is reinforced after correcting the target pipe joint, realizes multi-angle support through the support plate and the rib plate, ensures that secondary deformation cannot be generated in the follow-up jacking construction process, and is simple and reliable in construction method, and the jacking pipe construction can be quickly corrected and restored, so that the construction quality and the progress are improved.
Description
Technical Field
The application belongs to the technical field of pipe jacking construction, and particularly relates to a pipe jacking pipeline reinforcement construction method.
Background
At present, pipe jacking construction is mainly adopted for pipeline laying, and the pipe jacking construction is a non-excavation construction method, so that the pipe jacking construction is a pipeline buried construction technology without excavation or with less excavation. The pipe jacking construction is to overcome the friction force between the pipeline and the surrounding soil by means of the jacking equipment in the working pit, jack the pipeline into the soil according to the designed gradient and transport away the earth. After one pipe is pushed into the soil layer, a second pipe is pushed into the soil layer. The principle is that by means of the thrust of the main top oil cylinder, the pipeline, the relay and the like, a tool pipe or a heading machine is pushed from the inside of a working pit to the inside of a receiving pit through a soil layer to be lifted. The pipeline is buried between two pits after following the tool pipe or the heading machine. In the pipe jacking construction process, the pipe jacking is easy to deform under the influence of jacking thrust of the main jacking cylinder, and the quality and the progress of pipe jacking construction are affected if the problem is solved in time.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The application aims to overcome the defects in the prior art and provides a pipe-jacking pipeline reinforcement construction method.
In order to achieve the above object, the present application provides the following technical solutions:
a pipe-jacking pipeline reinforcement construction method comprises the following steps:
step S1, fixing jacking equipment at the deformation position of a target pipe joint;
step S2, starting jacking equipment, enabling the jacking equipment to squeeze the deformation part along the radial direction of the target pipe joint, and correcting the target pipe joint;
s3, arranging an annular supporting plate at one end of the inner wall of the target pipe joint, and dismantling the jacking equipment after the supporting plate is fixed;
s4, arranging a plurality of rib plates on one side of the supporting plate corresponding to the area to be reinforced, and arranging another supporting plate on the other end of each rib plate;
and S5, repeating the construction of the rib plate and the supporting plate at least once so as to reinforce the target pipe joint.
Preferably, the supporting plate is formed by splicing an upper plate body and a lower plate body, wherein the upper plate body and the lower plate body respectively correspond to the upper part and the lower part of the target pipe body.
Preferably, an arc-shaped inner supporting plate is arranged at the inner sides of the upper plate body and the lower plate body so as to connect the upper plate body and the lower plate body.
Preferably, the number of the ribs between any two adjacent support plates is the same, and the ribs overlap each other in the axial projection of the target pipe joint.
Preferably, the rib comprises an upper rib and a lower rib; the upper rib plates are uniformly distributed on the upper portion of the target pipe joint, and the lower rib plates are uniformly distributed on the lower portion of the target pipe joint, wherein the distance between the upper rib plates is smaller than the distance between the lower rib plates.
Preferably, the whole section of the target pipe section is reinforced, and the ends of the former pipe section and the latter pipe section, which are close to the target pipe section, are reinforced.
Preferably, rib plates are arranged on the outer sides of the supporting plates at two ends of the reinforcing area, and the rib plates correspond to the rib plates.
Preferably, the jacking equipment is a jack, two ends of the jack are provided with base plates corresponding to the inner walls of the target pipe joints, and the base plates are provided with arc surfaces corresponding to the inner walls of the target pipe joints.
Preferably, the angle of the arc surface corresponding to the backing plate is not smaller than 90 degrees.
Preferably, ventilation equipment is arranged in the target pipe joint, the ventilation equipment comprises an air inlet pipe and an air outlet pipe, the air inlet pipe extends into the later pipe joint of the target pipe joint, the air outlet pipe extends into the former pipe joint of the target pipe joint, and a plug is arranged in the later pipe joint of the target pipe joint.
The beneficial effects are that: the jacking equipment extrudes to correct the deformation department of target pipe joint, can make the push pipe resume the shape to avoid in follow-up jacking in-process to push pipe impel to produce the influence, consolidate after correcting target pipe joint, realize the support of multi-angle through backup pad and floor, guarantee follow-up jacking construction in-process can not produce secondary deformation, construction method is simple reliable, can correct fast and resume push pipe construction, thereby construction quality and progress.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Wherein:
FIG. 1 is a schematic diagram of a ventilation device distribution in an embodiment of the present application;
FIG. 2 is a schematic diagram of a consolidation structure according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a consolidation structure in an embodiment provided by the present application;
FIG. 4 is a schematic view of a support plate according to an embodiment of the present application;
FIG. 5 is a schematic diagram of rib distribution in an embodiment of the present application.
In the figure: 1. a target pipe section; 2. an air outlet pipe; 3. an air inlet pipe; 4. plugging; 5. a support plate; 6. rib plates; 7. an upper rib plate; 8. a lower rib plate; 9. an inner supporting plate.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
In the description of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present application and do not require that the present application must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The application will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
As shown in fig. 1 to 5, a pipe-jacking pipeline reinforcement construction method includes: step S1, fixing jacking equipment at the deformation position of a target pipe joint 1; step S2, starting jacking equipment, enabling the jacking equipment to squeeze the deformation part along the radial direction of the target pipe joint 1, and correcting the target pipe joint 1; s3, arranging an annular supporting plate 5 at one end of the inner wall of the target pipe joint 1, and dismantling jacking equipment after the supporting plate 5 is fixed; step S4, arranging a plurality of rib plates on one side of the supporting plate 5 corresponding to the area to be reinforced, and arranging another supporting plate 5 on the other end of each rib plate; and S5, repeating the construction of the rib plate and the supporting plate 5 at least once to strengthen the target pipe joint 1. The reinforcement construction is divided into two stages, wherein the first stage corrects the deformation position; in the construction method, the jacking equipment extrudes to correct the deformation of the target pipe joint 1, so that the jacking pipe can be restored to the shape, the impact on the pushing of the jacking pipe in the subsequent jacking process is avoided, the supporting plate 5 and the rib plates are used for realizing multi-angle supporting and reinforcing, and the secondary deformation in the subsequent jacking construction process is avoided;
the reinforcement area is extended by repeating the construction of the rib plate and the support plate 5 once, the number of the rib plates can be increased or decreased according to the length of the area to be reinforced, and the reinforcement area can be applicable to the areas to be reinforced with different lengths on the premise that the length of the rib plates is not increased (the increase of the length of the rib plates can lead to weakening of the reinforcement strength).
In another alternative embodiment, the support plate 5 is formed by splicing an upper plate body and a lower plate body, wherein the upper plate body and the lower plate body respectively correspond to the upper part and the lower part of the target pipe body. The periphery of backup pad 5 and the inner wall looks adaptation of target tube coupling 1, and upper plate body and lower plate body are the partition piece of backup pad 5, splice annular backup pad 5 that constitutes through upper plate body and lower plate body, are convenient for transport in the pipeline inside, reduce the installation degree of difficulty.
In another alternative embodiment, the inner sides of the upper plate body and the lower plate body are provided with arc-shaped inner supporting plates 9 so as to connect the upper plate body and the lower plate body, the width of the inner supporting plates 9 is 50mm, the thickness is 20mm, specific lengths are set according to actual needs, preferably, the lengths of the inner supporting plates 9 are identical to the inner diameters of the supporting plates 5, the supporting plates 5 comprise two equally divided parts, the two inner supporting plates 9 are respectively positioned at two ends of the upper plate body and the lower plate body, the connection positions of the upper plate body and the lower plate body are reinforced, and the equally divided lines of the inner supporting plates 9 and the supporting plates 5 are mutually staggered, so that the strength of the supporting plates 5 is ensured, and the supporting can be carried out in the circumferential direction of the target pipe joint 1.
In a further alternative embodiment, the number of ribs between any adjacent two support plates 5 is the same and coincides with each other in the axial projection of the target pipe section 1, in particular the stagger between the corresponding two ribs is not more than 2mm.
In an alternative embodiment, the support plate 5 has a thickness of 20mm, a width of 150mm and an outer diameter of 1601mm, and the support plate 5 is fixed to the inner wall of a pipe section, in the present case a steel pipe section, by welding.
In another alternative embodiment, the ribs comprise an upper rib 7 and a lower rib 8; the upper rib plates 7 are uniformly distributed on the upper portion of the target pipe joint 1, and the lower rib plates 8 are uniformly distributed on the lower portion of the target pipe joint 1, wherein the distance between the upper rib plates 7 is smaller than the distance between the lower rib plates 8. Specifically, the length of the lower rib plate 8 is 1480mm, the thickness is 20mm, the width is 150mm, and the interval is 105mm; the length 1480mm, the thickness 20mm, the width 100mm and the interval 310mm of the upper rib plate 7. According to the stress characteristics of the pipe joint, the distance between the upper rib plate 7 and the lower rib plate 8 is adjusted, and the construction workload is reduced as much as possible on the premise of meeting the supporting strength.
In another alternative embodiment, the spacing between the upper ribs is the same and the spacing between the lower ribs is the same, wherein the spacing between the upper ribs is equal to the spacing between the lower ribs.
In another alternative embodiment, the entire section of the target section 1 is reinforced, and the ends of the preceding and following sections near the target section 1 are reinforced. In the former pipe section and the latter pipe section, the reinforcing length should not be less than 750mm, so that the reinforcing range is overlapped with the adjacent pipe section of the target pipe section 1 in an interlaced manner, and the construction quality is ensured.
In another alternative embodiment, rib plates 6 are arranged on the outer sides of the supporting plates 5 at the two ends of the reinforcing area, and the rib plates 6 correspond to the rib plates. The rib plates 6 can be rectangular or trilateral, can support the outermost support plates 5, avoid the outward inclination of the outermost support plates 5 due to stress, and improve the reinforcing effect.
In an alternative embodiment, the support plate 5, the inner stay plate 9 and the rib plates are all fixed by double-sided full welding.
In another alternative embodiment, the jacking device is a jack, two ends of the jack are provided with base plates corresponding to the inner wall of the target pipe joint 1, and the base plates are provided with arc surfaces corresponding to the inner wall of the target pipe joint 1.
The jacking force is uniformly dispersed on the pipe wall through the arc surface, so that the pipe joint is prevented from deforming in the cold straightening process, the number of jacks is increased or decreased according to the length of the deformed part, specifically, the jack spacing is set according to 1m, the jacks are 50t jacks, and the length of the base plate in the length direction of the pipe joint is 1m.
In this embodiment, the angle of the arc surface corresponding to the pad is not less than 90 °.
In another embodiment, the backing plate is an arc-shaped plate, three top plates extending along the radial direction of the backing plate are uniformly distributed on the inner side of the backing plate, the three top plates are intersected on the same supporting plate at the circle center of the arc corresponding to the backing plate, the jack is correspondingly jacked on the supporting plate, the three top plates and the backing plate are of a trilateral-like structure, and the stability is high, and meanwhile the jack force of the jack can be uniformly distributed on the inner wall of the pipe joint.
In another embodiment, the backing plate is an arc-shaped plate, a tile-shaped plate opposite to the arc-shaped plate is arranged on the inner side of the backing plate, and two sides of the tile-shaped plate are welded on the inner side of the backing plate, so that the jacking force of the jack can be uniformly distributed on the inner wall of the pipe joint.
In another alternative embodiment, ventilation equipment is arranged inside the target pipe section 1, the ventilation equipment comprises an air inlet pipe 3 and an air outlet pipe 2, the air inlet pipe 3 extends into the next pipe section of the target pipe section 1, the air outlet pipe 2 extends into the previous pipe section of the target pipe section 1, and a plug 4 is arranged in the next pipe section of the target pipe section 1.
The air inlet pipe 3 and the air outlet pipe 2 are respectively connected to the fan so as to form air circulation in the pipe joint, ensure air circulation and ensure the oxygen content of the air in the pipe joint; the closure 4 may be a membrane closure. It is to be understood that the above description is intended to be illustrative, and that the embodiments of the present application are not limited thereto.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the application as defined by the appended claims.
Claims (4)
1. The pipe-jacking pipeline reinforcement construction method is characterized by comprising the following steps of:
step S1, fixing jacking equipment at the deformation position of a target pipe joint;
step S2, starting jacking equipment, enabling the jacking equipment to squeeze the deformation part along the radial direction of the target pipe joint, and correcting the target pipe joint;
s3, arranging an annular supporting plate at one end of the inner wall of the target pipe joint, and dismantling the jacking equipment after the supporting plate is fixed;
s4, arranging a plurality of rib plates on one side of the supporting plate corresponding to the area to be reinforced, and arranging another supporting plate on the other end of each rib plate;
s5, repeating the construction of the rib plate and the supporting plate at least once to strengthen the target pipe joint; the support plate is formed by splicing an upper plate body and a lower plate body, wherein the upper plate body and the lower plate body respectively correspond to the upper part and the lower part of the target pipe body; an arc-shaped inner supporting plate is arranged on the inner sides of the upper plate body and the lower plate body so as to connect the upper plate body and the lower plate body; the support plate comprises two equally divided parts, two inner support plates are respectively positioned at two ends of the upper plate body and the lower plate body, the joint of the upper plate body and the lower plate body is reinforced, the equally divided lines of the inner support plates and the support plate are mutually staggered, and the circumference of the target pipe joint is supported; the number of the rib plates between any two adjacent support plates is the same, and the rib plates are mutually overlapped on the axial projection of the target pipe joint; the rib plate comprises an upper rib plate and a lower rib plate; the upper rib plates are uniformly distributed at the upper part of the target pipe joint, and the lower rib plates are uniformly distributed at the lower part of the target pipe joint, wherein the interval between the upper rib plates is smaller than the interval between the lower rib plates; reinforcing the whole section of the target pipe joint, and reinforcing one ends, close to the target pipe joint, of the former pipe joint and the latter pipe joint; and rib plates are arranged on the outer sides of the supporting plates at two ends of the reinforcing area, and correspond to the rib plates.
2. The pipe-in-pipe reinforcement construction method according to claim 1, wherein the jacking equipment is a jack, two ends of the jack are provided with base plates corresponding to the inner walls of the target pipe joints, and the base plates are provided with arc surfaces corresponding to the inner walls of the target pipe joints.
3. The pipe-in-pipe reinforcement construction method according to claim 2, wherein the angle of the circular arc surface corresponding to the backing plate is not less than 90 °.
4. The pipe-in-pipe reinforcement construction method according to claim 1, wherein ventilation equipment is arranged inside the target pipe section, the ventilation equipment comprises an air inlet pipe and an air outlet pipe, the air inlet pipe extends into a later pipe section of the target pipe section, the air outlet pipe extends into a former pipe section of the target pipe section, and a plug is arranged in the later pipe section of the target pipe section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210188010.7A CN114658921B (en) | 2022-02-28 | 2022-02-28 | Pipe-jacking pipeline reinforcement construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210188010.7A CN114658921B (en) | 2022-02-28 | 2022-02-28 | Pipe-jacking pipeline reinforcement construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114658921A CN114658921A (en) | 2022-06-24 |
| CN114658921B true CN114658921B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210188010.7A Active CN114658921B (en) | 2022-02-28 | 2022-02-28 | Pipe-jacking pipeline reinforcement construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201212601Y (en) * | 2008-07-12 | 2009-03-25 | 中冶京唐建设有限公司 | Temporary support in pipe of large diameter |
| CN102679040A (en) * | 2012-05-15 | 2012-09-19 | 上海交通大学 | Construction method for preventing reinforced concrete pipe joint from being damaged and leaking slurry in pipe-jacking construction |
| JP2016180442A (en) * | 2015-03-24 | 2016-10-13 | 前澤給装工業株式会社 | Fitting method of laying pipe and in-core used in fitting method |
| CN107339504A (en) * | 2017-07-12 | 2017-11-10 | 郑州市市政工程总公司 | Interior spelling formula jacking pipe construction process |
| CN110388215A (en) * | 2018-04-17 | 2019-10-29 | 中国石油天然气集团有限公司 | The vertical pipe jacking construction method in Urban Underground pipe gallery tunnel |
| CN111520539A (en) * | 2020-05-09 | 2020-08-11 | 无锡市锡山三建实业有限公司 | Device for jacking construction of pipeline |
| CN113623482A (en) * | 2021-07-21 | 2021-11-09 | 武大巨成结构股份有限公司 | Pipeline deformation non-excavation jacking repairing device and repairing method |
-
2022
- 2022-02-28 CN CN202210188010.7A patent/CN114658921B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201212601Y (en) * | 2008-07-12 | 2009-03-25 | 中冶京唐建设有限公司 | Temporary support in pipe of large diameter |
| CN102679040A (en) * | 2012-05-15 | 2012-09-19 | 上海交通大学 | Construction method for preventing reinforced concrete pipe joint from being damaged and leaking slurry in pipe-jacking construction |
| JP2016180442A (en) * | 2015-03-24 | 2016-10-13 | 前澤給装工業株式会社 | Fitting method of laying pipe and in-core used in fitting method |
| CN107339504A (en) * | 2017-07-12 | 2017-11-10 | 郑州市市政工程总公司 | Interior spelling formula jacking pipe construction process |
| CN110388215A (en) * | 2018-04-17 | 2019-10-29 | 中国石油天然气集团有限公司 | The vertical pipe jacking construction method in Urban Underground pipe gallery tunnel |
| CN111520539A (en) * | 2020-05-09 | 2020-08-11 | 无锡市锡山三建实业有限公司 | Device for jacking construction of pipeline |
| CN113623482A (en) * | 2021-07-21 | 2021-11-09 | 武大巨成结构股份有限公司 | Pipeline deformation non-excavation jacking repairing device and repairing method |
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| CN114658921A (en) | 2022-06-24 |
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