CN104594343B - A kind of assembled stake and its construction method - Google Patents
A kind of assembled stake and its construction method Download PDFInfo
- Publication number
- CN104594343B CN104594343B CN201410712283.2A CN201410712283A CN104594343B CN 104594343 B CN104594343 B CN 104594343B CN 201410712283 A CN201410712283 A CN 201410712283A CN 104594343 B CN104594343 B CN 104594343B
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 9
- 238000009417 prefabrication Methods 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000011109 contamination Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- 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
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of assembled stake, it is included in lower pile tube, it is described to be provided with lower pile tube in down tube pile cages, described upper head plate is provided with lower pile tube upper end, top pile tube is equipped with the upper end of lower pile tube described, the bottom plate being fitted on the upper head plate is provided with the lower end of the top pile tube, the bottom plate is connected with the upper head plate, head tube pile cages are set in the top pile tube, one of groined type compound stirrup is set every 200~400mm on the steel reinforcement cage of the top pile tube, rear pouring concrete is provided with the top pile tube and fills core.The invention also discloses the construction method of above-mentioned assembled stake.Upper and lower two section prefabricated tubular piles are assembled together by the present invention, and by way of pouring concrete after being poured in the pile tube of top fills core, together with pile tube and the blend of predominance of cast-in-situ bored pile.The present invention has the characteristics of easy pile extension, quick, low cost, construction is fast, quality easily ensures, high capacity.
Description
Technical field
The present invention relates to the technical field of building construction such as science of bridge building, work China Democratic National Construction Association and marine port engineering, particularly one kind
Assembled stake and its construction method, load stake and weak soil support pile available for all kinds of Structural Engineerings.
Background technology
Prestressed reinforced concrete pipe pile system factorial praluction, material property obtain the pile tube of maximum performance.Its manufacture
Technique is simple, and adaptation is wide, high financial profit, is widely used in soft soil foundation, but due to the system in production, construction technology
About, the wall thickness of stake is somewhat limited, therefore pile tube horizontal bearing capacity is smaller, and horizontal bending resistance torque is small, is bearing water
Applicability is poor in the multi-rise building thing pile foundation of flat load.On the other hand, cast-in-situ bored pile horizontal bearing capacity is high, but is also easy to produce
The problems such as necking down, concrete piles quality are difficult to ensure that, and complex procedures, caused mud contamination environment in construction.
The content of the invention
The present invention provides a kind of assembled stake and its construction method to solve technical problem present in known technology, should
The advantage of pile tube and cast-in-situ bored pile can be organically merged by assembled stake.
The present invention is for a technical scheme being taken of technical problem present in solution known technology：A kind of assembled
Stake, it is included in lower pile tube, it is described to be provided with lower pile tube in down tube pile cages, it is provided with upper end in lower pile tube upper end described
Plate, it is characterised in that top pile tube is equipped with the upper end of lower pile tube described, press fitting is provided with the lower end of the top pile tube
Bottom plate on the upper head plate, the bottom plate are connected with the upper head plate, and top pile tube is set in the top pile tube
Steel reinforcement cage, one of groined type compound stirrup is set every 200~400mm on the steel reinforcement cage of the top pile tube, on the top
Rear pouring concrete is provided with portion's pile tube and fills core.It can be produced in lower pile tube with top pile tube in common pile tube production equipment.
The bottom plate is provided with lower skirtboard and the bottom plate annular projection above turned over, and the lower skirtboard is embedded in the head tube admittedly
The outside of stake, the skirt intralamellar part are provided with the peg I for being anchored in top pile tube, the upper head plate be provided with down the upper skirtboard that turns over and
Upper head plate annular projection, the upper skirtboard is solid to be provided with and is anchored in the outside of lower pile tube, the overskirt intralamellar part embedded in described
The peg II of lower pile tube；Connect ring flat-plate to hold tightly described on the outer surface of lower pile tube and the top pile tube, the connection ring
Plate is provided with the groove with upper head plate annular projection and bottom plate annular projection clamping, and the connection ring flat-plate includes passing through hinge
Two valve arc monolithics, the keying end per arc monolithic described in valve respectively passes through an assembling spiral shell with the lower skirtboard and the upper skirtboard
Tether and connect, the center line for assembling bolt is radially consistent with the assembled stake.
The top pile tube is partial prestressing pile tube or zero pile for prestressed pipe, if adds prestressing force according to top pile tube
When lifting requirements determine major diameter.The longitudinal reinforcement of the steel reinforcement cage of the top pile tube uses prestressed steel bar and high-strength steel with ribbing
Muscle hybrid reinforcement or all high tensile reinforcements with ribbing, it is high tensile reinforcement diameter with ribbing that longitudinal reinforcement, which stretches out stake end length >=10d, d,
Simultaneously to meet anchorage length of steel bar in cushion cap, can continue to be welded with the high tensile reinforcement with ribbing of certain length；The top pile tube steel
The stirrup of muscle cage uses tie hoop；It is described to use pile for prestressed pipe, the longitudinal direction of the steel reinforcement cage in lower pile tube in lower pile tube
Reinforcing bar is formed using prestressed steel bar, and prestressing force is added by common pile tube.
The bottom plate is welded to connect with the upper head plate, reinforcing bar self-locking connects or is connected using connection ring flat-plate.
The length of the top pile tube is not less than five times of pile body diameters and passed through is not less than three times stake below thickness of soft soil
Body diameter length.
The present invention is for another technical scheme for being taken of technical problem present in solution known technology：Above-mentioned assembling
The construction method of formula stake, carry out according to the following steps：
One) top and uses prefabrication at pile tube in lower pile tube, during the prefabrication of top pile tube, at top
One of groined type compound stirrup is set every 200~400mm on pipe pile reinforcing bar cage；
Two) transported by top pile tube and in lower pile tube to job site；
Three) pouring concrete fills core after the pile tube intracavitary of top, forms overlapping concrete solid pile；
Four) after using long spire equipment pore-forming in stake position, stake holes will be sunk in lower pile tube, the upper end for staying in lower pile tube is sink to
During away from 0.8~1.2m of ground, lower pile tube is fixed on；
Five) the solid top pile tube assembling of concrete will be overlapped in the upper end of lower pile tube, progress pile connection construction；
Six) pile sinking is continued to designed elevation；
Seven) slip casing by pressure reinforcing is carried out to stake side.
The step 3), core is filled using C40-C50 concretings concrete, height is poured every time and is no more than 5m.
The present invention has the advantages and positive effects of：Upper and lower two section prefabricated tubular piles are assembled together, and by pushing up
The mode that rear pouring concrete fills core is poured in portion's pile tube, together with pile tube and the blend of predominance of cast-in-situ bored pile, after pour coagulation
Soil fills the horizontal bearing capacity that core improves assembled stake, using all or part of high tensile reinforcement with ribbing, avoids prolonging for high-strength steel bar
Property it is poor, bond stress is weak the shortcomings that, lower compared to bored concrete pile cost, construction is more convenient, and quality is easily guaranteed that, and without mud in constructing
Slurry processing, belongs to green construction.The pile extension by the way of connection ring flat-plate connection, the welding job at the scene of can saving, subtracts
Few site operation amount.The present invention has the characteristics of easy pile extension, quick, low cost, construction is fast, quality easily ensures, high capacity.
Brief description of the drawings
Fig. 1 is the overall structure diagram of assembled stake of the present invention；
Fig. 2 is assembled stake coupling part profile of the present invention；
Fig. 3-1 is the elevation of assembled stake arc monolithic of the present invention；
Fig. 3-2 is Fig. 3-1 A-A sectional views；
Fig. 3-3 is Fig. 3-1 B-B sectional views；
Fig. 4 is Fig. 2 top view；
Fig. 5 is the steel reinforcement cage elevation of the top pile tube of assembled stake of the present invention；
Fig. 6 is Fig. 5 top view；
Fig. 7 be assembled stake of the present invention construction method step seven) constructing structure figure.
In figure：1 is top pile tube；11 be bottom plate；111 be lower skirtboard；112 be bottom plate annular projection；113 be peg
Ⅰ；2 be in lower pile tube；21 be upper head plate；22 be prestressed steel bar；211 be upper skirtboard；212 be upper head plate annular projection；213 are
Peg II；3 be connection ring flat-plate；31 be assembling bolt；32 be bolt hole；33 be bearing pin；34 be connection ring flat-plate groove；4 be top
The steel reinforcement cage of pile tube；41 be top pile tube longitudinal reinforcement；42 be top pile tube tie hoop；43 be groined type compound stirrup；44
To be welded with reinforcing bar；5 be that rear pouring concrete fills core；6 be Pile side soil；7 be grouting and reinforcing structure.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Accompanying drawing is referred to, a kind of assembled stake, is included in lower pile tube 2, it is described to be provided with lower pile tube 2 in lower pipe pile reinforcing bar
Cage, upper head plate 21 is provided with the upper end of lower pile tube 2 described, top pile tube 1 is equipped with the upper end of lower pile tube 2 described,
The lower end of the top pile tube 1 is provided with the bottom plate 11 being fitted on the upper head plate 21, the bottom plate 11 and the upper end
Plate 21 connects, and head tube pile cages 4 is set in the top pile tube 1, every 200 on the steel reinforcement cage 4 of the top pile tube
~400mm sets one of groined type compound stirrup 43, and rear pouring concrete is provided with the top pile tube 1 and fills core 5.In lower pile tube
2 can produce with top pile tube 1 in common pile tube production equipment.
In the present embodiment, the top pile tube 1 carries out bolt connection in lower pile tube 2 with described by being connected ring flat-plate 3.Tool
Body structure is：The bottom plate 11 is provided with the lower skirtboard 111 and bottom plate annular projection 112 above turned over, and the lower skirtboard 111 is solid embedding
In the outside of the top pile tube 1, the skirt intralamellar part is provided with the peg 113 for being anchored in top pile tube 1；The upper head plate 21
The upper skirtboard 211 and upper head plate annular projection 212 turned over is provided with down, the upper skirtboard 211 is admittedly embedded in described in the outer of lower pile tube 2
Side, the overskirt intralamellar part are provided with the peg 213 being anchored in lower pile tube 2；Connection ring flat-plate 3 is held tightly described in the lower He of pile tube 2
On the outer surface of the top pile tube 1, the connection ring flat-plate is provided with and upper head plate annular projection 212 and bottom plate annular projection
The groove 34 of 112 clampings, the connection ring flat-plate 3 include two valve arc monolithics being hinged by bearing pin 33, arc list described in per valve
The keying end of piece is respectively connected with the lower skirtboard 111 and the upper skirtboard 211 by an assembling bolt 31, the assembling bolt 31
Center line is radially consistent with the assembled stake.Bolt hole 32 on the connection ring flat-plate 3 is counterbore, makes assembling bolt 31 can
It is a part of in into counterbore, the resistance at ring flat-plate 3 is connected with protection assembling bolt 31 and when reducing pile sinking.
The top pile tube 1 can also pass through being directly welded to connect, welding procedure and tubular pile splicing with described in lower pile tube 2
Technique is identical, existing pile extension mode, existing maturation process, refers to《Prestressed concrete pipe pile》(10G409) country figure
Collection.In two pile end plate junctions full weld in three times.The bottom plate and the upper head plate can also use existing reinforcing bar self-locking
Formula connects.
Above-mentioned top pile tube 1 uses prefabrication, and there is bottom plate 11 lower end, and longitudinal reinforcement 41 stretches out stake end.Above-mentioned top
The length of pile tube 1 is according to determination is calculated, and to ensure premised on lower pile tube 2 meets requirement for bearing capacity, and meets to be not less than five times
Pile body diameter or through the detailing requiments for being not less than three times pile body diameter length below thickness of soft soil.The top pipe pile reinforcing bar
Cage 4 can use the hybrid reinforcement or all of prestressed steel bar and high tensile reinforcement with ribbing with reference to bored concrete pile arrangement of reinforcement, longitudinal reinforcement 41
High tensile reinforcement with ribbing, if add prestressing force and determined according to top pile tube draw ratio and lifting requirements, longitudinal reinforcement stretches out stake end
Length >=10d, d are high tensile reinforcement diameter with ribbing, while to meet anchorage length of steel bar in cushion cap, can continue to be welded with certain length
High tensile reinforcement with ribbing 44.Stirrup 42 uses tie hoop.The above-mentioned longitudinal reinforcement in down tube pile cages uses prestress steel
Rod 22 is formed, and prestressing force is added by common pile tube.
The construction method of above-mentioned assembled stake, is carried out according to the following steps：
One) top and uses prefabrication at pile tube 1 in lower pile tube 2, during the prefabrication of top pile tube 1,
One of groined type compound stirrup 43 is set every 200~400mm on head tube pile cages 4；
Two) transported by top pile tube 1 and in lower pile tube 2 to job site；
Three) pouring concrete fills core 5 after the intracavitary of top pile tube 1, forms overlapping concrete solid pile；
Four) after using long spire equipment pore-forming in stake position, stake holes will be sunk in lower pile tube 2, the upper end for staying in lower pile tube 2 sinks
During to away from 0.8~1.2m of ground, lower pile tube 2 is fixed on；
Five) the solid top pile tube 1 of concrete will be overlapped to assemble in the upper end of lower pile tube 2, progress pile connection construction.Pile extension
It can be carried out by hand fit, now should ensure that pile tube surface cleaning, the gap between section is padded with iron plate up and down welds, up and down section
The centerline deviation of stake cannot be greater than 10mm, and node warpage rise cannot be greater than 1 ‰ long.The connection of section stake can use weldering up and down
Connect, reinforcing bar self-locking connects or is connected using connection ring flat-plate 3.Full weld in three times during welding.When connecting the connection of ring flat-plate 3, it will connect
Ring flat-plate is fixed on section stake connecting portion up and down, tightens assembling bolt 31, connection ring flat-plate 3 is hugged section stake connecting portion up and down.
Six) pile sinking is continued to designed elevation；
Seven) slip casing by pressure reinforcing is carried out to stake side, grouting and reinforcing structure 7 is formed between Pile side soil 6 and assembled stake.
Above-mentioned steps three), core 5 is filled using C40-C50 concretings concrete, height is poured every time and is no more than 5m.
Although the preferred embodiments of the present invention are described above in conjunction with accompanying drawing, the invention is not limited in upper
The embodiment stated, above-mentioned embodiment is only schematical, be not it is restricted, this area it is common
Technical staff in the case of present inventive concept and scope of the claimed protection is not departed from, may be used also under the enlightenment of the present invention
By make it is many in the form of, these are belonged within protection scope of the present invention.
Claims (6)
1. a kind of assembled stake, it is included in lower pile tube, it is described to be provided with lower pile tube in down tube pile cages, described in down tube
Stake upper end is provided with upper head plate, it is characterised in that top pile tube is equipped with the upper end of lower pile tube described, in the top pile tube
Lower end be provided with and be fitted in bottom plate on the upper head plate, the bottom plate is provided with bottom plate annular projection, the upper head plate
Provided with upper head plate annular projection, the bottom plate is held tightly with the upper head plate using connection ring flat-plate connection, the connection ring flat-plate
It is described on the outer surface of lower pile tube and the head tube staking contact portion, it is described connection ring flat-plate be provided with the upper head plate ring-type it is convex
Play the groove with the bottom plate annular projection clamping；Head tube pile cages are set in the top pile tube, at the top
One of groined type compound stirrup is set every 200~400mm on the steel reinforcement cage of pile tube, poured after being provided with the top pile tube mixed
Solidifying soil fills core, and the two forms overlapping concrete solid pile；
The bottom plate is provided with the lower skirtboard above turned over, and the lower skirtboard is embedded in the outside of the top pile tube, the lower skirtboard admittedly
Inside is provided with the peg I for being anchored in top pile tube, and the upper head plate is provided with down the upper skirtboard turned over, and the upper skirtboard is solid embedded in described
In the outside of lower pile tube, the overskirt intralamellar part is provided with the peg II being anchored in lower pile tube；The connection ring flat-plate includes passing through
Two valve arc monolithics of hinge, the keying end of arc monolithic passes through with the lower skirtboard and the upper skirtboard described in per valve
One assembling bolt connection, the center line for assembling bolt are radially consistent with the assembled stake.
2. assembled stake according to claim 1, it is characterised in that the top pile tube is partial prestressing pile tube or zero
Pile for prestressed pipe, the longitudinal reinforcement of the steel reinforcement cage of the top pile tube use prestressed steel bar and high tensile reinforcement hybrid reinforcement with ribbing
Or all high tensile reinforcements with ribbing, it is with ribbing that the longitudinal reinforcement of the steel reinforcement cage of the top pile tube, which stretches out stake end length >=10d, d,
High tensile reinforcement diameter, the stirrup of the steel reinforcement cage of the top pile tube use tie hoop；It is described to use prestressed pipe in lower pile tube
Stake, the longitudinal reinforcement of the steel reinforcement cage in lower pile tube are formed using prestressed steel bar.
3. assembled stake according to claim 2, it is characterised in that the longitudinal reinforcement of the steel reinforcement cage of the top pile tube is stretched
The upper end for going out an end is welded with high tensile reinforcement with ribbing.
4. assembled stake according to claim 1, it is characterised in that the length of the top pile tube is not less than five times of pile bodies
Diameter or through being not less than three times pile body diameter length below thickness of soft soil.
5. a kind of construction method of assembled stake as claimed in claim 1, it is characterised in that carry out according to the following steps：
One) top and uses prefabrication at pile tube in lower pile tube, during the prefabrication of top pile tube, in top pile tube
One of groined type compound stirrup is set every 200~400mm on steel reinforcement cage；
Two) transported by top pile tube and in lower pile tube to job site；
Three) pouring concrete fills core after the pile tube intracavitary of top, forms overlapping concrete solid pile；
Four) after using long spire equipment pore-forming in stake position, stake holes will be sunk in lower pile tube, the upper end for staying in lower pile tube is sink to away from ground
During 0.8~1.2m of face, lower pile tube is fixed on；
Five) the solid top pile tube assembling of concrete will be overlapped in the upper end of lower pile tube, progress pile connection construction；
Six) pile sinking is continued to designed elevation；
Seven) slip casing by pressure reinforcing is carried out to stake side.
6. the construction method of assembled stake according to claim 5, it is characterised in that the step 3), using C40-
C50 concretings concrete fills core, pours height every time and is no more than 5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712283.2A CN104594343B (en) | 2014-11-28 | 2014-11-28 | A kind of assembled stake and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712283.2A CN104594343B (en) | 2014-11-28 | 2014-11-28 | A kind of assembled stake and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594343A CN104594343A (en) | 2015-05-06 |
| CN104594343B true CN104594343B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410712283.2A Active CN104594343B (en) | 2014-11-28 | 2014-11-28 | A kind of assembled stake and its construction method |
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| CN (1) | CN104594343B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040685B (en) * | 2015-06-09 | 2017-10-03 | 周兆弟 | Prefabricated component with hollow structure |
| CN106245642A (en) * | 2016-07-27 | 2016-12-21 | 华信咨询设计研究院有限公司 | A kind of pre-stressed concrete pipe pile foundation and construction method thereof |
| CN108677937A (en) * | 2018-06-01 | 2018-10-19 | 黄河水利委员会河南黄河河务局 | A kind of reinforced concrete hollow tube pile connection device and connection method |
| CN110424437A (en) * | 2019-08-13 | 2019-11-08 | 中国电建集团山东电力建设有限公司 | Photo-voltaic power generation station installation foundation construction method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646414A (en) * | 1987-06-27 | 1989-01-11 | Taisei Corp | Construction work of in-site concrete pile |
| CN102587364A (en) * | 2012-03-27 | 2012-07-18 | 盐城市同力新型建材有限公司 | Connecting method between piles and simple mechanical connection structure between piles |
| CN202899123U (en) * | 2012-11-09 | 2013-04-24 | 中国十七冶集团有限公司 | Pipe pile concreting reinforcement cage with circular ring internal supports |
| CN103556632B (en) * | 2013-10-17 | 2018-01-02 | 林基 | A kind of Prefabricated Reinforced Concrete Square Pile fast mechanical connector attachment means |
| CN104153360B (en) * | 2014-09-02 | 2016-06-08 | 德翰智慧科技有限公司 | Core-filled concrete pouring device and method for prestressed concrete pipe pile joints |
| CN204252127U (en) * | 2014-11-28 | 2015-04-08 | 天津大学建筑设计研究院 | A kind of assembling stake |
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| CN104594343A (en) | 2015-05-06 |
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Address after: 300072 Tianda architecture creative building (Science and Technology Park), No. 192, Anshan West Road, Nankai District, Tianjin Patentee after: Tianjin University architectural design and Planning Research Institute Co.,Ltd. Patentee after: Zhang Xizhi Patentee after: TIANJIN PORT & CHANNEL ENGINEERING Co.,Ltd. Address before: 300073 Tianjin City, Nankai District Anshan West Road No. 192 Patentee before: TIANJIN University RESEARCH INSTITUTE OF ARCHITECTRUAL DESIGN & URBAN PLANNING Patentee before: Zhang Xizhi Patentee before: TIANJIN PORT & CHANNEL ENGINEERING Co.,Ltd. |
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