CN112695745A - Prestressed concrete pipe pile - Google Patents
Prestressed concrete pipe pile Download PDFInfo
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- CN112695745A CN112695745A CN202011510779.3A CN202011510779A CN112695745A CN 112695745 A CN112695745 A CN 112695745A CN 202011510779 A CN202011510779 A CN 202011510779A CN 112695745 A CN112695745 A CN 112695745A
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- reinforcing
- pipe pile
- concrete pipe
- prestressed concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a prestressed concrete pipe pile which comprises two fixing pad seats. The two fixing cushion seats are arranged, and the shaping frame with binding and reinforcing functions is arranged on the reinforcing ribs to enhance the structural tightness among the four reinforcing ribs; a locking lantern ring and a movable support which are elastically supported by a strong spring are arranged on the shaping frame by using a reinforcing rib, a driving piston and a driven piston which interact with each other are movably sleeved in the movable support with a hollow structure, and a reinforcing sheet metal is connected and arranged between the outer edge of the base and the upper inner edge of the base so as to ensure the bearing property and the firmness of the upper end and the lower end of the concrete pipe pile; the shaping steel bars are connected between the sleeving plate and the upper inner edge and the lower inner edge, so that the telescopic connecting rods with elastic action are connected between the reinforcing ribs and the shaping steel bars; utilize moulding cambered plate to seal the space between two fixed base pads to the concreting forms the concrete layer, thereby forms the fixed tubular pile who has prestressing force.
Description
Technical Field
The invention relates to the technical field of building component manufacturing, in particular to a prestressed concrete pipe pile.
Background
In recent years, in order to respond to the call of civilized town construction, the strength of infrastructure construction is increased in more and more areas, and the quality level of the pipe pile serving as one of important components of the infrastructure has a key influence on the overall construction. In the prior art, the tubular pile is divided into a post-tensioning prestressed tubular pile and a pre-tensioning prestressed tubular pile, a prestressed concrete thin-wall tubular pile and a high-strength prestressed concrete tubular pile, wherein the pre-tensioning prestressed tubular pile is a hollow cylindrical elongated concrete prefabricated part manufactured by adopting a pre-tensioning prestressed process and a centrifugal forming method. Specifically, pretensioned prestressed concrete pipe piles are beginning to be applied to railway systems in large quantities and are expanding to the fields of industrial and civil buildings, municipal works, metallurgy, ports, highways, and the like. The demand of the pipe pile in recent years is rapidly increased, so that a new industry is rapidly formed, and the pipe pile manufacturing industry is rapidly developed unprecedentedly.
Under the current manufacturing conditions, the strength grade of the produced pipe pile concrete is mostly C80, and the majority of the produced pipe pile concrete adopts a two-stage production process of steam curing and pressure steam curing, namely, steam curing is carried out for a plurality of hours under normal pressure, and then steam curing is carried out in a high pressure autoclave under high pressure. However, because of the change of the development and application environment and conditions of the times, higher performance requirements are continuously provided for the tubular pile, the traditional normal-pressure steam curing manufacturing mode is adopted, the quick rise and reduction of the temperature causes the pile body to crack, the strength is reduced, the tubular pile structure is rigid and brittle, the bearing capacity and the pressure resistance are extremely limited, in a complex use environment, an engineering structural member needs to bear extremely large external load, the tubular pile manufactured by the traditional mode lacks enough coping capacity, the structure can not be judged and self-adjusted according to the time of the crack, even if the stress is generated, the advantages of improving the rigidity of the structure, reducing the vibration and elastic deformation and enabling the structure of the tubular pile to be easily broken and broken.
Disclosure of Invention
The invention aims to solve the problem that a concrete pipe pile structure in the prior art is lack of enough prestress support, and provides a prestressed concrete pipe pile.
In order to achieve the purpose, the invention adopts the following technical scheme:
a prestressed concrete pipe pile comprises two fixing pad seats, four reinforcing ribs are fixedly connected between the two fixing pad seats, and a pre-assembling mechanism and a shaping mechanism are respectively arranged between the two fixing pad seats;
the pre-assembling mechanism comprises two locking lantern rings which are fixedly sleeved on four reinforcing ribs, a shaping frame is sleeved on the four reinforcing ribs together, four movable supports are sleeved on the shaping frame in a sliding mode, cavities are formed in the movable supports, strong supporting rods which are sleeved in the cavities in a sliding mode are welded on the locking lantern rings, driving pistons which are sleeved in the cavities in a sliding mode are fixedly connected to the strong supporting rods, strong springs are fixedly sleeved on the strong supporting rods, telescopic rods are sleeved in the cavities in a sliding mode, driven pistons and sleeving brackets are fixedly connected to the telescopic rods respectively, and sleeving plates are fixedly sleeved in the sleeving brackets;
moulding mechanism is including the base outer fringe and the interior edge of going out of constituteing the fixed bolster seat, there are four arc cardboards in bolted connection respectively on base outer fringe and the interior edge of going out of, and the welding has the reinforcing plate gold between two arc cardboards that correspond, go out the interior edge and cup joint the moulding reinforcing bar of fixedly connected with between the plate, and be connected with flexible connecting rod between reinforcing bar and the moulding reinforcing bar, two the fixed bolster seat corresponds and has seted up the draw-in groove, and the moulding cambered surface board of fixedly connected with between two draw-in grooves, two concrete layer has been pour between the fixed bolster seat.
Preferably, two the fixed bolster corresponds from top to bottom, and four strengthening rib circumference equidistance that set up perpendicularly distribute, the design frame sets up on four strengthening ribs through two locking lantern ring levels that correspond from top to bottom.
Preferably, four remove the support circumference equidistance and distribute on the frame of finalizing the design, and every removes the support and all is located between two adjacent strengthening ribs.
Preferably, the cavity is of a convex structure, the driving piston is slidably sleeved in the opening at the side end of the cavity, the driven piston and the sleeving support are respectively connected to two ends of the telescopic rod, and the driven piston is slidably sleeved in the opening at the middle end of the cavity.
Preferably, the strong spring is positioned at one end of the strong strut connected with the locking lantern ring, and the strong spring is welded with the opening at the side end of the cavity.
Preferably, the shaping reinforcing steel bars are vertically arranged, each shaping reinforcing steel bar is located between two adjacent reinforcing ribs, and two ends of the telescopic connecting rod are respectively connected with the reinforcing ribs and the shaping reinforcing steel bar through bolts.
Preferably, the upper inner edge is located in the outer edge of the base, and the four reinforcing plate metals are circumferentially and equidistantly distributed between the outer edge of the base and the upper inner edge.
Preferably, the two clamping grooves on the fixing pad seat correspond to each other up and down, the clamping grooves are located in the outer wall of the outer edge of the base, and the upper end and the lower end of the shaping arc panel are detachably connected into the two clamping grooves.
Preferably, the shaping cambered plates are circumferentially equidistant outside the concrete layer respectively.
Compared with the prior art, the invention has the following advantages:
1. the reinforcing ribs which are distributed at equal intervals in the circumferential direction are arranged between the two corresponding fixing cushion seats at the upper part and the lower part, and the shaping frame with the binding and reinforcing functions is arranged on the reinforcing ribs so as to enhance the structural tightness among the four reinforcing ribs; utilize the strengthening rib setting by powerful spring elastic support's locking lantern ring and removal support on the design frame to the movable sleeve establishes interact's initiative piston and slave piston in hollow structure's removal support, provides the movable support effect of atress buffering for the cover is equipped with the support that cup joints the plate.
2. The invention utilizes the outer edge of the base and the upper inner edge to form a fixed cushion seat with an integrated structure, and a reinforcing sheet metal is connected and arranged between the outer edge of the base and the upper inner edge to ensure the bearing performance and the firmness of the upper end and the lower end of the concrete pipe pile; through cup joint the plate and go up and go out between the inner edge and connect moulding reinforcing bar to be connected the flexible connecting rod that has the elastic action between strengthening rib and moulding reinforcing bar, provide firm supporting role for the concrete pipe pile.
3. The two fixing pad seats are provided with the corresponding clamping grooves up and down so as to be convenient for arranging the shaping cambered plates which are distributed at equal intervals in the circumferential direction and seal the space between the two fixing pad seats so as to be convenient for pouring concrete to form a concrete layer, thereby forming the fixing pipe pile with prestress.
In conclusion, the two fixing cushion seats are arranged, the reinforcing ribs are circumferentially distributed at equal intervals between the two fixing cushion seats, and the shaping frame with the binding and reinforcing functions is arranged on the reinforcing ribs to enhance the structural tightness among the four reinforcing ribs; a locking lantern ring and a movable support which are elastically supported by a strong spring are arranged on the shaping frame by using a reinforcing rib, and a driving piston and a driven piston which interact with each other are movably sleeved in the movable support with a hollow structure to provide a movable supporting function of stress buffering for a sleeved support sleeved with a sleeved plate; the outer edge of the base and the upper inner edge form a fixing pad seat of an integrated structure, and a reinforcing sheet metal is connected and arranged between the outer edge of the base and the upper inner edge to ensure the bearing performance and the firmness of the upper end and the lower end of the concrete pipe pile; the shaping steel bars are connected between the sleeving plate and the upper inner edge and the lower inner edge, so that the telescopic connecting rods with elastic action are connected between the reinforcing ribs and the shaping steel bars; utilize moulding cambered plate to seal the space between two fixed base pads to the concreting forms the concrete layer, thereby forms the fixed tubular pile who has prestressing force.
Drawings
Fig. 1 is a schematic structural view of a prestressed concrete pipe pile according to the present invention;
fig. 2 is an enlarged schematic view of a part a of the prestressed concrete pipe pile according to the present invention;
fig. 3 is an enlarged schematic view of a part B of a prestressed concrete pipe pile according to the present invention;
fig. 4 is a schematic view of a connection structure of a fixing pad and a shaping cambered plate of a prestressed concrete pipe pile according to the present invention;
FIG. 5 is a schematic view of an arc-shaped clamping plate structure of a prestressed concrete pipe pile according to the present invention;
fig. 6 is a schematic top view of a prestressed concrete pipe pile according to the present invention.
In the figure: the concrete-filled steel plate comprises a fixed cushion seat 1, reinforcing ribs 2, a locking lantern ring 3, a sizing frame 4, a movable support 5, a cavity 6, a strong supporting rod 7, a driving piston 8, a strong spring 9, a telescopic rod 10, a driven piston 11, a sleeving support 12, a sleeving plate 13, a base outer edge 14, an upper inner edge 15, an arc clamping plate 16, a reinforcing plate 17, a shaping reinforcing steel bar 18, a telescopic connecting rod 19, a clamping groove 20, a shaping cambered plate 21 and a concrete layer 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a prestressed concrete pipe pile comprises two fixing pad bases 1, wherein four reinforcing ribs 2 are fixedly connected between the two fixing pad bases 1, it should be noted that the two fixing pad bases 1 are completely identical, the upper ends of the four reinforcing ribs 2 are connected with the lower end of one fixing pad base 1 located at an upper position, the lower ends of the four reinforcing ribs 2 are connected with the upper end of the other fixing pad base 1 located at a lower position, and a preassembling mechanism and a shaping mechanism are respectively arranged between the two fixing pad bases 1;
the preassembling mechanism comprises two locking lantern rings 3 which are fixedly sleeved on four reinforcing ribs 2, as can be seen by referring to the attached drawing 1 of the specification, the two locking lantern rings 3 on the reinforcing ribs 2 are arranged correspondingly up and down and are locked and fixed through hexagon socket screws, the two locking lantern rings 3 can be adjusted in height position on the reinforcing ribs 2 according to actual requirements, the four reinforcing ribs 2 are sleeved with a sizing frame 4 together, through holes with consistent height positions are formed in the four reinforcing ribs 2, so that the end-to-end sizing frames 4 are horizontally arranged on the four reinforcing ribs 2 and are clamped and limited through the two locking lantern rings 3 to ensure the position fixation of the sizing frame 4, the sizing frame 4 is sleeved with four movable supports 5 in a sliding manner, cavities 6 are formed in the movable supports 5, the number of the cavities 6 on the movable supports 5 is two, and the two cavities 6 correspond up and down, a strong support rod 7 which is slidably sleeved in the cavity 6 is welded on the locking lantern ring 3, a driving piston 8 which is slidably sleeved in the cavity 6 is fixedly connected to the strong support rod 7, a strong spring 9 is fixedly sleeved on the strong support rod 7, the movable support 5 can move left and right on the shaping frame 4 under the limiting supporting action of the strong support rod 7 and the strong spring 9, a telescopic rod 10 is slidably sleeved in the cavity 6, a driven piston 11 and a sleeving support 12 are fixedly connected to the telescopic rod 10 respectively, a sleeving plate block 13 is fixedly sleeved in the sleeving support 12, and the sleeving support 12 is detachably assembled and connected with the sleeving support 12 through bolt connection so as to fix one end of the shaping steel bar 18;
referring to the attached drawings 1 and 4 of the specification, the shaping mechanism comprises a base outer edge 14 and an upper inner edge 15 which form a fixed cushion seat 1, the height of the base outer edge 14 is flush with the upper end of the upper inner edge 15, four arc-shaped clamping plates 16 are respectively connected to the base outer edge 14 and the upper inner edge 15 through bolts, every two arc-shaped clamping plates 16 corresponding to the horizontal direction form a group, so that a reinforcing plate metal 17 for fixedly supporting the base outer edge 14 and the upper inner edge 15 is arranged, the integral structural stability of the fixed cushion seat 1 is ensured, the fixed cushion seat 1 is ensured to keep stable and complete structure under the action of a great external force, a reinforcing plate metal 17 is welded between the two corresponding arc-shaped clamping plates 16, a shaping steel bar 18 is fixedly connected between the upper inner edge 15 and a sleeving plate 13, a telescopic connecting rod 19 is connected between the reinforcing bar 2 and the shaping steel bar 18, and it is required to say that the telescopic connecting rod 19 is made of steel material with, and form stable support structure between strengthening rib 2 and moulding reinforcing bar 18 through the triangle-shaped structure, draw-in groove 20 has been seted up to two fixed bolster 1 correspondences, and the moulding cambered plate 21 of fixedly connected with between two draw-in grooves 20, the quantity of moulding cambered plate 21 sets up according to the bore thickness of tubular pile, so as to seal component and space between two upper and lower unable adjustment base 1, thereby concreting material, concrete layer 22 has been pour between two fixed bolster 1, concrete material is after the cooling of 10-15 hours is stereotyped, disassemble moulding cambered plate 21 from the tubular pile, utilize concrete layer 22 to carry out comprehensive cladding to component.
It is emphasized that the length of the shaped reinforcing steel bar 18 is half of the length of the reinforcing steel bar 2, but the caliber thickness of the shaped reinforcing steel bar 18 is twice of the caliber thickness 2 of the reinforcing steel bar 2, so as to ensure the bearing performance of the shaped reinforcing steel bar 18.
Two fixed bolster 1 correspond from top to bottom, and the 2 circumference equidistance distributions of four perpendicular strengthening ribs that set up, and the locking lantern ring 3 levels that the frame of finalizing design 4 corresponds through upper and lower two set up on four strengthening ribs 2 to guarantee the level stability of the frame of finalizing design 4 through adjusting two locking lantern rings 3 from top to bottom, thereby carry out the centre gripping to the frame of finalizing design 4 and fix.
Four mobile support 5 circumference equidistance distribute in on finalizing the design frame 4, and every mobile support 5 all is located between two adjacent strengthening ribs 2 to carry out movable spacing fixed to mobile support 5.
The cavity 6 is a convex structure, the driving piston 8 is slidably sleeved in the opening at the side end of the cavity 6, the driven piston 11 and the sleeving support 12 are respectively connected to two ends of the telescopic rod 10, and the driven piston 11 is slidably sleeved in the opening at the middle end of the cavity 6, as can be seen by referring to the attached drawing 2 of the specification, the two driving pistons 8 can be used for movably supporting the telescopic rod 10 and the sleeving support 11 which are connected with the driven piston 11.
The strong spring 9 is positioned at one end of the strong strut 7 connected with the locking lantern ring 3, and the strong spring 9 is welded with the side end opening of the cavity 6 to provide a limit support for the movable support 5.
Specifically, referring to fig. 1 and fig. 3 of the specification, the shaped reinforcing bars 18 are vertically disposed, each shaped reinforcing bar 18 is located between two adjacent reinforcing bars 2, and two ends of the telescopic link 19 are respectively bolted to the reinforcing bars 2 and the shaped reinforcing bars 18, so as to maintain the distance between the reinforcing bars 2 and the shaped reinforcing bars 18.
Referring specifically to fig. 4 of the specification, the upper inner edge 15 is located in the outer edge 14 of the base, and four reinforcing plates 17 are circumferentially and equidistantly distributed between the outer edge 14 of the base and the upper inner edge 15, so as to ensure the structural stability of the fixing pad 1.
The clamping grooves 20 on the two fixing pad seats 1 correspond to each other up and down, the clamping grooves 20 are positioned in the outer wall of the outer edge 14 of the base, and the upper end and the lower end of the shaping cambered plate 21 are detachably connected into the two clamping grooves 20.
The shaping cambered plates 21 are circumferentially and equidistantly arranged on the outer side of the concrete layer 22 respectively so as to be convenient for pouring concrete materials in the tubular pile and avoid the leakage of the concrete materials.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A prestressed concrete pipe pile comprises two fixing pad seats (1), and is characterized in that four reinforcing ribs (2) are fixedly connected between the two fixing pad seats (1), and a preassembly mechanism and a shaping mechanism are respectively arranged between the two fixing pad seats (1);
the preassembly mechanism comprises two locking lantern rings (3) which are fixedly sleeved on the four reinforcing ribs (2), and the four reinforcing ribs (2) are sleeved with a shaping frame (4) together, the shaping frame (4) is sleeved with four movable supports (5) in a sliding manner, a cavity (6) is arranged in the movable support (5), a strong supporting rod (7) which is sleeved in the cavity (6) in a sliding way is welded on the locking lantern ring (3), and the strong supporting rod (7) is fixedly connected with a driving piston (8) which is slidably sleeved in the cavity (6), a strong spring (9) is fixedly sleeved on the strong supporting rod (7), a telescopic rod (10) is slidably sleeved in the cavity (6), a driven piston (11) and a sleeving support (12) are fixedly connected to the telescopic rod (10) respectively, and a sleeving plate (13) is fixedly sleeved in the sleeving support (12);
moulding mechanism is including forming base outer fringe (14) and the last inner edge (15) of fixing pad seat (1), there are four arc cardboard (16) in base outer fringe (14) and the last difference bolted connection that goes out on inner edge (15), and the welding has reinforcing plate gold (17) between two arc cardboard (16) that correspond, go up inner edge (15) and cup joint moulding reinforcing bar (18) of fixedly connected with between plate (13), and be connected with flexible connecting rod (19), two between reinforcing rib (2) and moulding reinforcing bar (18) fixing pad seat (1) corresponds and has seted up draw-in groove (20), and fixedly connected with moulding cambered plate (21) between two draw-in grooves (20), two concrete layer (22) have been pour between fixing pad seat (1).
2. The prestressed concrete pipe pile of claim 1, wherein two of the fixed pad seats (1) correspond up and down, and four vertically arranged reinforcing ribs (2) are distributed at equal intervals in the circumferential direction, and the setting frame (4) is horizontally arranged on the four reinforcing ribs (2) through upper and lower two corresponding locking lantern rings (3).
3. The prestressed concrete pipe pile of claim 2, wherein four said movable supports (5) are circumferentially equidistantly distributed on the sizing frame (4), and each movable support (5) is located between two adjacent reinforcing bars (2).
4. The prestressed concrete pipe pile of claim 1, wherein the cavity (6) is of a convex structure, the driving piston (8) is slidably sleeved in the side end opening of the cavity (6), the driven piston (11) and the sleeving support (12) are respectively connected to two ends of the telescopic rod (10), and the driven piston (11) is slidably sleeved in the middle end opening of the cavity (6).
5. A prestressed concrete pipe pile according to claim 4, characterized in that the strong spring (9) is located at the end of the strong strut (7) connected to the locking collar (3), and the strong spring (9) is welded to the opening at the side end of the cavity (6).
6. The prestressed concrete pipe pile of claim 3, wherein the shaped reinforcing bars (18) are vertically arranged, each shaped reinforcing bar (18) is positioned between two adjacent reinforcing bars (2), and two ends of the telescopic connecting rod (19) are respectively connected with the reinforcing bars (2) and the shaped reinforcing bars (18) through bolts.
7. A prestressed concrete pipe pile according to claim 1, characterized in that said upper inner edge (15) is located in the outer edge (14) of the base, and four reinforcing sheet metals (17) are equally circumferentially distributed between the outer edge (14) of the base and the upper inner edge (15).
8. The prestressed concrete pipe pile according to claim 6, wherein the two clamping grooves (20) on the fixing pad seats (1) correspond up and down, the clamping grooves (20) are located in the outer wall of the outer edge (14) of the base, and the upper end and the lower end of the shaping cambered plate (21) are detachably connected in the two clamping grooves (20).
9. The prestressed concrete pipe pile of claim 7, wherein said shaped cambered plates (21) are circumferentially equidistant outside the concrete layer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011510779.3A CN112695745B (en) | 2020-12-19 | 2020-12-19 | Prestressed concrete pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011510779.3A CN112695745B (en) | 2020-12-19 | 2020-12-19 | Prestressed concrete pipe pile |
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| Publication Number | Publication Date |
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| CN112695745A true CN112695745A (en) | 2021-04-23 |
| CN112695745B CN112695745B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011510779.3A Active CN112695745B (en) | 2020-12-19 | 2020-12-19 | Prestressed concrete pipe pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618875A (en) * | 2021-09-14 | 2021-11-09 | 连云港市连大管桩工程有限公司 | Precast concrete square pile with reinforced connecting structure and production method thereof |
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| CN201627196U (en) * | 2010-03-19 | 2010-11-10 | 杭州临安仁达高新材料制造有限公司 | Double-end-surface pipe piling sheet |
| CN205188942U (en) * | 2015-11-21 | 2016-04-27 | 浙江航天管桩有限公司 | Concrete pipe pile |
| CN205653781U (en) * | 2016-04-01 | 2016-10-19 | 江苏东浦管桩有限公司 | Some prestressed concrete sides stake of net arrangement of reinforcement form |
| CN211171935U (en) * | 2019-10-31 | 2020-08-04 | 温州强宏建材有限公司 | Novel concrete pipe pile |
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2020
- 2020-12-19 CN CN202011510779.3A patent/CN112695745B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201627196U (en) * | 2010-03-19 | 2010-11-10 | 杭州临安仁达高新材料制造有限公司 | Double-end-surface pipe piling sheet |
| CN205188942U (en) * | 2015-11-21 | 2016-04-27 | 浙江航天管桩有限公司 | Concrete pipe pile |
| CN205653781U (en) * | 2016-04-01 | 2016-10-19 | 江苏东浦管桩有限公司 | Some prestressed concrete sides stake of net arrangement of reinforcement form |
| CN211171935U (en) * | 2019-10-31 | 2020-08-04 | 温州强宏建材有限公司 | Novel concrete pipe pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113618875A (en) * | 2021-09-14 | 2021-11-09 | 连云港市连大管桩工程有限公司 | Precast concrete square pile with reinforced connecting structure and production method thereof |
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| CN112695745B (en) | 2022-07-12 |
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Effective date of registration: 20220622 Address after: 014030 the Inner Mongolia Autonomous Region Baotou Rare Earth High-tech Zone Binhe New District, Feng Road 14 Applicant after: Inner Mongolia land and sea Construction Co.,Ltd. Address before: Beijing University of technology, 5 Zhongguancun South Street, Haidian District, Beijing 100089 Applicant before: Lu Chengyun |
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