CN111503370A - Reinforced concrete top pipe joint - Google Patents
Reinforced concrete top pipe joint Download PDFInfo
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- CN111503370A CN111503370A CN202010322880.XA CN202010322880A CN111503370A CN 111503370 A CN111503370 A CN 111503370A CN 202010322880 A CN202010322880 A CN 202010322880A CN 111503370 A CN111503370 A CN 111503370A
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- pipe
- reinforced concrete
- front section
- section
- jacking
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 115
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 238000005260 corrosion Methods 0.000 claims abstract description 36
- 239000011083 cement mortar Substances 0.000 claims abstract description 6
- 239000004593 Epoxy Substances 0.000 claims description 21
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 12
- 229910052725 zinc Inorganic materials 0.000 claims description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000010426 asphalt Substances 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 239000011120 plywood Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 21
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 15
- 238000010276 construction Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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
Abstract
A reinforced concrete top pipe joint is formed by inserting an anti-corrosion steel sleeve at the tail part of a front section of a reinforced concrete pipe, arranging a lining ring in the anti-corrosion steel sleeve, fixing the lining ring on the tail end of the front section of the reinforced concrete pipe through a rear planting bolt on the pipe wall of the tail part of the front section of the reinforced concrete pipe, arranging a front section capable of being inserted into the anti-corrosion steel sleeve on the rear section of the reinforced concrete pipe, arranging a groove on the front section, and arranging a water-encountering micro-expansion wedge-shaped rubber ring in the groove. The invention better meets the pushing requirement of the reinforced concrete push pipe, avoids the damage of the push pipe joint caused by the ductility defect of the material, overcomes the sealing defect caused by the difficult close matching of the common reinforced concrete push pipe joint, further improves the anti-seepage effect by filling and pointing the joint in the inner ring groove formed by the lining ring and the front and rear sections of the reinforced concrete pipe by cement mortar, prevents the poor sealing caused by corrosion by the anti-corrosion steel casing pipe, and prolongs the service life of the push pipe.
Description
Technical Field
The invention relates to a pipe joint, in particular to a reinforced concrete pipe jacking joint, and belongs to the technical field of municipal pipeline engineering.
Background
In recent years, with the rapid development of urban construction, municipal pipeline engineering is more and more constructed and more complicated.
The method adopted in municipal pipeline engineering construction is grooving pipe burying, however, the grooving pipe burying construction method has many defects, noise disturbs residents in the construction process, damages to roads, buildings and the like can be caused, and normal lives of the traffic and residents are affected, so that the pipe jacking construction method of the municipal pipeline is more and more emphasized and popularized.
Pipe jacking construction is a non-excavation type underground pipeline laying technology capable of well protecting the environment, under the condition that an external soil layer structure is not disturbed or slightly disturbed, a tool pipe or a heading machine penetrates through soil layers along the line from a working well to enter a receiving well by means of a main jacking oil pump and other jacking equipment, and meanwhile, pipe joints which are immediately behind the tool pipe or the heading machine are sequentially connected and buried and pushed into pipeline soil layers which connect two working wells.
The jacking process of the jacking pipe is a dynamic process of jacking force transmission, and the jacking force transmission is transmitted through the axial interaction between pipes, so that the transmission of the jacking force is directly influenced by the connection form between pipe joints, and the connection form between the pipe joints also relates to the sealing property of a pipeline and the safety of the pipe joints in the jacking process, and influences the construction process and the quality of the pipeline.
For this reason, in the prior art, there have been many studies on pipe jacking joints, and we can retrieve many valuable patents in this respect, such as:
the utility model discloses a "take rectangle push pipe joint of longitudinal connection bolt" that utility model patent (application No. 201820231611.0) provided, "a rectangle push pipe joint" that utility model patent (application No. 201820231594.0) provided, "a take fixed push pipe joint" of crab-bolt that utility model patent (application No. 201821961648.5) provided, "a socket joint formula steel push pipe joint" that utility model patent (application No. 201822202844.0) provided and "a self-compaction push pipe joint" that utility model patent (application No. 201920314326.X) provided etc.
Examination of the above prior art reveals that:
the pipe jacking joint in the prior art is mostly suitable for connection between steel pipe jacking or pipe jacking with a steel interface part, and fails to consider the particularity of steel concrete pipe jacking and connection sealing and the problem of sealing caused by corrosion of steel materials by complicated chemical and electrochemical reactions in soil layer structures of the steel pipe jacking and the steel interface part.
Because the end part of the reinforced concrete jacking pipe is not as good as that of the steel jacking pipe or other jacking pipes with steel interfaces and has good ductility, if no special protection measures are provided, the reinforced concrete jacking pipe can cause the damage of a jacking pipe joint in the jacking process, and the jacking process of a pipe joint and the sealing performance of a final pipeline are influenced; if the steel top pipe or the steel interface piece is not specially protected, poor sealing is easily caused by corrosion, and the service life of the steel top pipe or the steel interface piece is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a reinforced concrete jacking pipe joint which is used for connecting and jacking a reinforced concrete jacking pipe and achieves the purposes of reducing damage of the jacking pipe joint in the jacking process, ensuring the jacking speed and improving the sealing performance of the jacking pipe joint on the premise of simplifying the joint structure as much as possible and facilitating the manufacture of the joint.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the utility model provides a reinforced concrete ejector sleeve connects for the connection and the top of reinforced concrete ejector sleeve push away, include reinforced concrete pipe front segment and reinforced concrete pipe back segment, its characterized in that:
the cross section of the tail pipe wall of the front section of the reinforced concrete pipe is step-shaped, and a post-embedded bolt pre-embedding hole is also formed in the tail pipe wall of the front section of the reinforced concrete pipe;
the tail part of the cross section of the pipe wall of the front section of the reinforced concrete pipe is in a step shape and is spliced with an anti-corrosion steel sleeve, and the anti-corrosion steel sleeve is welded with an anchor bar in the pipe wall of the front section of the reinforced concrete pipe;
the inner side of the anti-corrosion steel sleeve is provided with a lining ring, and the lining ring is fixed at the tail end of the front section of the reinforced concrete pipe through bolts implanted in the embedded holes of the rear planting bolts;
after the front section of the reinforced concrete pipe is connected with the rear section of the reinforced concrete pipe, the inner wall of the lining ring, the pipe wall of the tail end of the front section of the reinforced concrete pipe and the pipe wall of the front end of the rear section of the reinforced concrete pipe form an inner ring groove, and the inner ring groove is filled with cement mortar;
the rear section of the reinforced concrete pipe is provided with a front section which can be inserted into the anti-corrosion steel casing pipe, and the front section is provided with two grooves;
and a wedge-shaped rubber ring which slightly expands when meeting water is arranged in the groove.
Furthermore, the inner side of the end part of the anti-corrosion steel casing connected with the rear section of the reinforced concrete pipe is provided with a wedge-shaped chamfer, and the cross section of the pipe wall of the root part of the front section of the rear section of the reinforced concrete pipe inserted into the anti-corrosion steel casing is trapezoidal.
Furthermore, the pipe wall of the anticorrosion steel casing pipe is of a layered structure, and the layered structure comprises a steel base layer, an epoxy zinc-rich primer layer coated outside the steel base layer, and an epoxy asphalt finish paint layer coated outside the epoxy zinc-rich primer layer.
Further:
the steel substrate is made of low-alloy high-strength structural steel Q355;
the epoxy zinc-rich primer layer comprises two degrees, and the thickness of each degree of the epoxy zinc-rich primer layer is 40 mu;
the epoxy asphalt finish paint layer comprises two degrees, and the thickness of the epoxy asphalt finish paint layer per degree is 90 mu.
Further, the backing ring is made of a bamboo plywood, and the thickness of the bamboo plywood is 15 mm.
Furthermore, a polymer plastic expansion pipe or a rubber sleeve pipe is arranged in the post-planting bolt embedded hole.
Compared with the prior art, the embodiment of the invention has the beneficial effects and obvious progress that:
1) the reinforced concrete jacking pipe joint provided by the embodiment of the invention is characterized in that an anti-corrosion steel sleeve welded with an anchor bar in the front section of a reinforced concrete pipe is spliced at the tail part of the front section of the reinforced concrete pipe, a lining ring is arranged at the inner side of the anti-corrosion steel sleeve and is fixed at the tail end of the front section of the reinforced concrete pipe through a bolt implanted in a post-implanted bolt embedded hole on the pipe wall at the tail part of the front section of the reinforced concrete pipe, a front section capable of being inserted into the anti-corrosion steel sleeve is arranged on the rear section of the reinforced concrete pipe, two grooves are formed on the front section, and a water-encountering micro-expansion rubber ring is arranged in, the joint of the reinforced concrete jacking pipe is formed, the jacking requirement of the reinforced concrete jacking pipe is well met, and the damage of the jacking pipe joint during jacking connection is avoided due to the ductility defect of the reinforced concrete jacking pipe, so that the jacking process of a pipe joint and the sealing performance of a final pipeline are influenced;
2) according to the reinforced concrete top pipe joint provided by the embodiment of the invention, the wedge-shaped rubber ring capable of expanding slightly when encountering water is arranged in the groove at the front section of the rear section of the reinforced concrete pipe, so that the sealing defect caused by the fact that the reinforced concrete top pipe joint is difficult to be tightly matched is overcome, the sealing performance is improved, and meanwhile, a cement mortar filling and pointing mode is adopted in an inner ring groove formed by the inner wall of the lining ring, the pipe wall at the tail end of the front section of the reinforced concrete pipe and the pipe wall at the front end of the rear section of the reinforced concrete pipe, so that the anti-seepage effect of the reinforced concrete top pipe joint is further improved;
3) the reinforced concrete top pipe joint provided by the embodiment of the invention also fundamentally solves the corrosion problem of steel top pipes and top pipe joint members similar to corrosion-resistant steel sleeves in the prior art by adopting the corrosion-resistant steel sleeves, prevents poor sealing of the top pipe joint caused by corrosion, and prolongs the service life of the top pipe;
4) the reinforced concrete pipe jacking connector provided by the embodiment of the invention has the advantages of novel and unique design, simple structure, convenience in manufacture, low cost, excellent protection effect and strong practicability, can greatly reduce the damage of the pipe jacking connector in the jacking process, ensures the jacking speed and obviously improves the sealing performance of the pipe jacking connector, and therefore, the reinforced concrete pipe jacking connector can be widely applied to the design, prefabrication and installation of reinforced concrete pipelines in municipal engineering and has great popularization and application values.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and the other drawings also belong to the drawings required by the embodiments of the invention.
FIG. 1 is a schematic cross-sectional structural view of a component of a reinforced concrete pipe jacking joint according to an embodiment of the present invention;
fig. 2 is a schematic sectional structural view of a reinforced concrete top pipe joint according to an embodiment of the present invention.
In the figure:
100-reinforced concrete pipe front section, 110- (front section) tail section, 111-rear embedded bolt hole, 120-corrosion-resistant steel casing pipe, 121-wedge chamfer, 130-backing ring and 140-bolt;
200-rear section of reinforced concrete pipe, 210- (rear section) front section, 211-groove, 212- (front section) root, 220-wedge rubber ring slightly expanding when meeting water;
300-inner ring groove.
Detailed Description
In order to make the objects, technical solutions, advantages and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings provided in the embodiments of the present invention, and it is obvious that all of the described embodiments are only some embodiments of the present invention, but not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the accompanying drawings of the embodiments of the present invention are used for distinguishing different objects and not for describing a particular order; furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements, but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that in the description of the embodiments of the present invention, the use of the terms orientation or position, which are used in the description of the embodiments of the present invention, are only based on the orientation or position shown in the drawings of the embodiments of the present invention, and are used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element in question must have a specific orientation, a specific orientation configuration and operation, and therefore, should not be taken as limiting the invention.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical means of the present invention will be described in detail below with specific examples.
Examples
The embodiment provides a reinforced concrete jacking pipe joint which is used for connecting and jacking a reinforced concrete jacking pipe.
As shown in fig. 1, a schematic sectional structure view of a component member of a reinforced concrete top pipe joint provided in an embodiment of the present invention, and fig. 2, a schematic sectional structure view of a reinforced concrete top pipe joint provided in an embodiment of the present invention, the reinforced concrete top pipe joint provided in this embodiment includes:
a reinforced concrete pipe front section 100 and a reinforced concrete pipe rear section 200.
The cross section of the pipe wall of the tail part 110 of the front section 100 of the reinforced concrete pipe is step-shaped, and the pipe wall of the tail part 110 is also provided with a post-planting bolt embedded hole 111;
the tail part 110 of the front section with the cross section of the pipe wall being step-shaped is spliced with an anti-corrosion steel sleeve 120, and the anti-corrosion steel sleeve 120 is welded with an anchor bar in the pipe wall of the front section 100 of the reinforced concrete pipe;
the inner side of the corrosion-resistant steel casing 120 is provided with a lining ring 130, and the lining ring 130 is fixed at the tail end of the reinforced concrete pipe front section 100 through bolts 140 implanted in the bolt-implanting-behind holes 111;
after the reinforced concrete pipe front section 100 is connected with the reinforced concrete pipe rear section 200, the inner wall of the liner ring 130, the pipe wall of the tail end of the reinforced concrete pipe front section 100 and the pipe wall of the front end of the reinforced concrete pipe rear section 200 form an inner ring groove 300, and the inner ring groove 300 is filled with cement mortar;
the reinforced concrete pipe rear section 200 is provided with a front section 210 into which the anti-corrosion steel casing can be inserted, and the front section 210 is provided with two grooves 211;
a wedge-shaped rubber ring 220 which slightly expands when meeting water is arranged in the groove 211.
From the above description, it can be seen that:
firstly, the reinforced concrete jacking pipe joint provided by the embodiment is characterized in that an anti-corrosion steel casing pipe welded with an anchor bar in the front section of a reinforced concrete pipe is inserted at the tail part of the front section of the reinforced concrete pipe, a lining ring is arranged at the inner side of the anti-corrosion steel casing pipe and is fixed at the tail end of the front section of the reinforced concrete pipe through a bolt implanted in a post-implanted bolt embedded hole on the pipe wall of the tail part of the front section of the reinforced concrete pipe, a front section capable of being inserted into the anti-corrosion steel casing pipe is arranged on the rear section of the reinforced concrete pipe, two grooves are formed on the front section, and a wedge-shaped rubber ring capable of expanding, the joint of the reinforced concrete jacking pipe is formed, the jacking requirement of the reinforced concrete jacking pipe is well met, and the damage of the jacking pipe joint during jacking connection is avoided due to the ductility defect of the reinforced concrete jacking pipe, so that the jacking process of a pipe joint and the sealing performance of a final pipeline are influenced;
secondly, the reinforced concrete top pipe joint provided by the embodiment overcomes the sealing defect caused by the difficulty in tight fit of the common reinforced concrete top pipe joint by arranging the water-swellable wedge-shaped rubber ring in the groove at the front section of the rear section of the reinforced concrete pipe, improves the sealing performance, and further improves the anti-seepage effect of the reinforced concrete top pipe joint by adopting a cement mortar filling and pointing mode in an inner ring groove formed by the inner wall of the lining ring, the pipe wall at the tail end of the front section of the reinforced concrete pipe and the pipe wall at the front end of the rear section of the reinforced concrete pipe;
thirdly, the reinforced concrete jacking pipe joint provided by the embodiment also fundamentally solves the corrosion problem of steel jacking pipes and jacking pipe joint members similar to corrosion-resistant steel casings in the prior art by adopting the corrosion-resistant steel casings, prevents poor sealing of the jacking pipe joint caused by corrosion, and prolongs the service life of the jacking pipe.
Further, as an improvement, the inner side of the end portion where the anticorrosive steel casing 120 is connected with the rear section 200 of the reinforced concrete pipe is provided with a wedge-shaped chamfer 121, and the cross section of the pipe wall of the front section root 212 inserted into the anticorrosive steel casing 120 is trapezoidal.
So design, can be convenient for reinforced concrete pipe back end 200 insert in anticorrosive steel sleeve pipe 120 more, be connected with reinforced concrete pipe front end 100.
Further, as a special design, the tube wall of the anti-corrosion steel casing 120 is a layered structure (not shown in the figure), and the layered structure includes a steel substrate, an epoxy zinc-rich primer layer coated outside the steel substrate, and an epoxy asphalt finish layer coated outside the epoxy zinc-rich primer layer.
By adopting the anti-corrosion steel sleeve with the structure, the sleeve can be prevented from being corroded in the service life, so that the sealing performance of the sleeve is ensured.
Further, as an optional technical solution:
the steel substrate is made of low-alloy high-strength structural steel Q355;
the epoxy zinc-rich primer layer comprises two degrees, and the thickness of each degree of the epoxy zinc-rich primer layer is 40 mu;
the epoxy asphalt finish paint layer comprises two degrees, and the thickness of each degree of the epoxy asphalt finish paint layer is 90 mu.
Further, as a preferred technical solution, the liner ring 130 is made of bamboo plywood, and the thickness of the bamboo plywood is 15 mm.
The bamboo plywood is adopted as the material of the backing ring 130, firstly, because the bamboo plywood has certain strength and better elasticity, the requirement of the strength required by pushing the rear section 200 of the reinforced concrete pipe can be met, and the requirement of tight connection with the front section 100 of the reinforced concrete pipe can be met, in addition, the bamboo plywood is low in price and good in sealing and corrosion prevention effects, and is one of the selected reasons.
Of course, other materials which have certain strength, good elasticity and good sealing and corrosion resistance, such as rubber, polytetrafluoroethylene and the like, can also be used as the material of the lining ring, and are not described in detail herein, but the material which meets the requirements is used as the lining ring, and the lining ring belongs to the protection scope of the invention.
Furthermore, a polymer plastic expansion pipe (not shown) or a rubber sleeve (not shown) is arranged in the post-bolt embedding hole 111, so that the friction force of the bolts embedded in the post-bolt embedding hole can be increased, and the connection firmness of the bolts and the front section 100 of the reinforced concrete pipe is enhanced.
In summary, it can be seen that:
the reinforced concrete pipe jacking joint provided by the embodiment has the advantages of novel and unique design, simple structure, convenience in manufacturing, low cost, excellent protection effect, strong practicability and convenience in expansion, can ensure that the damage of the pipe jacking joint is greatly reduced in the jacking process, the jacking speed is ensured, the sealing performance of the pipe jacking joint is obviously improved, and the reinforced concrete pipe jacking joint can be widely applied to the design, prefabrication and installation of reinforced concrete pipelines in municipal engineering, and therefore has popularization and application values.
During the description of the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further," "as an alternative," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention;
in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples;
furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (6)
1. The utility model provides a reinforced concrete ejector sleeve connects for the connection and the top of reinforced concrete ejector sleeve push away, include reinforced concrete pipe front segment and reinforced concrete pipe back segment, its characterized in that:
the cross section of the tail pipe wall of the front section of the reinforced concrete pipe is step-shaped, and a post-embedded bolt pre-embedding hole is also formed in the tail pipe wall of the front section of the reinforced concrete pipe;
the tail part of the cross section of the pipe wall of the front section of the reinforced concrete pipe is in a step shape and is spliced with an anti-corrosion steel sleeve, and the anti-corrosion steel sleeve is welded with an anchor bar in the pipe wall of the front section of the reinforced concrete pipe;
the inner side of the anti-corrosion steel sleeve is provided with a lining ring, and the lining ring is fixed at the tail end of the front section of the reinforced concrete pipe through bolts implanted in the embedded holes of the rear planting bolts;
after the front section of the reinforced concrete pipe is connected with the rear section of the reinforced concrete pipe, the inner wall of the lining ring, the pipe wall of the tail end of the front section of the reinforced concrete pipe and the pipe wall of the front end of the rear section of the reinforced concrete pipe form an inner ring groove, and the inner ring groove is filled with cement mortar;
the rear section of the reinforced concrete pipe is provided with a front section which can be inserted into the anti-corrosion steel casing pipe, and the front section is provided with two grooves;
and a wedge-shaped rubber ring which slightly expands when meeting water is arranged in the groove.
2. The reinforced concrete jacking pipe joint as claimed in claim 1, wherein: the inner side of the end part of the anti-corrosion steel casing pipe connected with the rear section of the reinforced concrete pipe is provided with a wedge-shaped chamfer, and the cross section of the pipe wall of the root part of the front section of the rear section of the reinforced concrete pipe inserted into the anti-corrosion steel casing pipe is trapezoidal.
3. The reinforced concrete jacking pipe joint as claimed in claim 1, wherein: the tube wall of the anti-corrosion steel sleeve is of a layered structure, and the layered structure comprises a steel base layer, an epoxy zinc-rich primer layer coated outside the steel base layer, and an epoxy asphalt finish paint layer coated outside the epoxy zinc-rich primer layer.
4. The reinforced concrete jacking pipe joint as claimed in claim 3, wherein:
the steel substrate is made of low-alloy high-strength structural steel Q355;
the epoxy zinc-rich primer layer comprises two degrees, and the thickness of each degree of the epoxy zinc-rich primer layer is 40 mu;
the epoxy asphalt finish paint layer comprises two degrees, and the thickness of the epoxy asphalt finish paint layer per degree is 90 mu.
5. The reinforced concrete jacking pipe joint as claimed in claim 1, wherein: the lining ring is made of a bamboo plywood, and the thickness of the bamboo plywood is 15 mm.
6. The reinforced concrete jacking pipe joint as claimed in claim 1, wherein: and a high polymer plastic expansion pipe or a rubber sleeve pipe is arranged in the post-planting bolt embedded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322880.XA CN111503370A (en) | 2020-04-22 | 2020-04-22 | Reinforced concrete top pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322880.XA CN111503370A (en) | 2020-04-22 | 2020-04-22 | Reinforced concrete top pipe joint |
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| Publication Number | Publication Date |
|---|---|
| CN111503370A true CN111503370A (en) | 2020-08-07 |
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|---|---|---|---|
| CN202010322880.XA Pending CN111503370A (en) | 2020-04-22 | 2020-04-22 | Reinforced concrete top pipe joint |
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| CN (1) | CN111503370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944038A (en) * | 2021-02-05 | 2021-06-11 | 上海城建预制构件有限公司 | Pipe jacking prefabricated part and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0670446A1 (en) * | 1994-02-23 | 1995-09-06 | Arnold Brust | Reinforced concrete driving pipe |
| CN203500682U (en) * | 2013-08-02 | 2014-03-26 | 嘉善富源大型构件有限公司 | Reinforced type concrete glass-reinforced plastic synthetic pipe |
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| CN207880195U (en) * | 2018-02-08 | 2018-09-18 | 中铁第四勘察设计院集团有限公司 | A kind of rectangular top pipe connector of the longitudinally connected bolt of band |
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2020
- 2020-04-22 CN CN202010322880.XA patent/CN111503370A/en active Pending
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| EP0670446A1 (en) * | 1994-02-23 | 1995-09-06 | Arnold Brust | Reinforced concrete driving pipe |
| CN203500682U (en) * | 2013-08-02 | 2014-03-26 | 嘉善富源大型构件有限公司 | Reinforced type concrete glass-reinforced plastic synthetic pipe |
| JP2015143454A (en) * | 2013-12-25 | 2015-08-06 | 日本ヒューム株式会社 | Concrete jacked pipe for pipe jacking method |
| CN205655003U (en) * | 2016-05-24 | 2016-10-19 | 江苏省水利勘测设计研究院有限公司 | Major diameter socket joint formula reinforced concrete push pipe internode interface |
| CN205859340U (en) * | 2016-08-03 | 2017-01-04 | 北京政平建设投资集团有限公司 | A kind of sealing collar being applicable to steel conduit jacking construction engineering |
| CN207880195U (en) * | 2018-02-08 | 2018-09-18 | 中铁第四勘察设计院集团有限公司 | A kind of rectangular top pipe connector of the longitudinally connected bolt of band |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944038A (en) * | 2021-02-05 | 2021-06-11 | 上海城建预制构件有限公司 | Pipe jacking prefabricated part and manufacturing method |
| CN112944038B (en) * | 2021-02-05 | 2023-03-14 | 上海城建预制构件有限公司 | Pipe jacking prefabricated part and manufacturing method |
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