CN113914312A - Mechanically-connected prestressed concrete prefabricated special-shaped pile and preparation method thereof - Google Patents
Mechanically-connected prestressed concrete prefabricated special-shaped pile and preparation method thereof Download PDFInfo
- Publication number
- CN113914312A CN113914312A CN202111425314.2A CN202111425314A CN113914312A CN 113914312 A CN113914312 A CN 113914312A CN 202111425314 A CN202111425314 A CN 202111425314A CN 113914312 A CN113914312 A CN 113914312A
- Authority
- CN
- China
- Prior art keywords
- pile
- pile body
- special
- shaped
- spiral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 239000004567 concrete Substances 0.000 claims description 26
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 9
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
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
- E02D5/58—Prestressed concrete piles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- 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
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a mechanically-connected prestressed concrete prefabricated special-shaped pile and a preparation method thereof, wherein the mechanically-connected prestressed concrete prefabricated special-shaped pile comprises a special-shaped pile, wherein multiple groups of upper pile walls and lower pile walls are arranged on the special-shaped pile, the upper pile walls and the lower pile walls are alternately connected together, spiral stirrups are arranged in a pile body of the special-shaped pile, compression-resistant outer hoops are sleeved on multiple positions of the pile body of the special-shaped pile, four groups of longitudinal reinforcements are arranged in an inner ring of the pile body of the special-shaped pile, multiple groups of connecting blocks are arranged on the front side surface and the rear side surface of the middle part of the pile body of the special-shaped pile, and a group of reinforcing reinforcements are arranged in each connecting block. The mechanically-connected prestressed concrete prefabricated special-shaped pile and the preparation method have the advantages that the structural arrangement is reasonable, each pile body of a single integrally-mechanically-connected prestressed concrete prefabricated special-shaped pile can be conveniently and uniformly produced, and then the pile bodies are combined together through mechanical connection, so that the mechanical-connected prestressed concrete prefabricated special-shaped pile is firm and firm in connection, the integral strength of a column body is increased, and the mechanical-connected prestressed concrete prefabricated special-shaped pile is more durable.
Description
Technical Field
The invention relates to the technical field of prefabricated special-shaped piles, in particular to a mechanically-connected prestressed concrete prefabricated special-shaped pile and a preparation method thereof.
Background
The precast pile is prefabricated on site at or near the piling site, and the shorter pile can be produced in a prefabricating plant, and has the characteristics of bearing larger load, firmness, durability, high construction speed and larger influence on the surrounding environment, and the construction procedures are prefabricating, transporting, stacking and sinking.
The precast pile is made of various materials and in various forms in a factory or a construction site, such as a wooden pile, a concrete square pile, a prestressed concrete tubular pile, a steel pile and the like, and is driven, pressed or vibrated into the soil by pile sinking equipment. The construction method is characterized in that a plurality of precast piles are mainly concrete precast piles and steel piles in the field of Chinese building construction, the concrete precast piles can bear large load, are firm and durable and have high construction speed, and are one of pile types widely applied, but the construction of the concrete precast piles has large influence on the surrounding environment, the concrete precast piles and the prestressed concrete hollow pipe piles are commonly used, and the steel piles are mainly steel pipe piles and H-shaped steel piles.
However, in the concrete precast pile in the prior art, when the concrete precast pile is produced in a factory, a single integral concrete precast pile is large in size and inconvenient to produce, and if the single integral concrete precast pile is produced in a unified manner by dividing the single integral concrete precast pile into a plurality of pile bodies, although the production is convenient, the mutual connecting force is insufficient.
Disclosure of Invention
The invention aims to provide a mechanically-connected prestressed concrete prefabricated special-shaped pile and a preparation method thereof, and aims to solve the problems that when the concrete prefabricated pile proposed in the background technology is produced in a factory in a unified manner, a single integral concrete prefabricated pile is large in size and inconvenient to produce, and if the single integral concrete prefabricated pile is produced in a unified manner by being divided into a plurality of sections, the connection force between the pile bodies is insufficient although the pile bodies are convenient.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a prefabricated abnormal shape stake of mechanical connection prestressed concrete, includes heterotypic stake, be provided with multiunit upper segment stake pile wall and lower segment stake pile wall on the heterotypic stake, and alternate connection is in the same place between upper segment stake pile wall and the lower segment stake pile wall, the internal spiral stirrup of installing of pile of heterotypic stake, and many places on the pile body of heterotypic stake overlap and have put the outer cuff of resistance to compression, the pile body inner ring of heterotypic stake is equipped with four vertical muscle of group, and all sets up the multiunit connecting block on the pile body middle part leading flank and the trailing flank of heterotypic stake to all install a set of reinforcement reinforcing bar in every connecting block.
Furthermore, angle bead sleeves are sleeved on the upper end and the lower end head of the special-shaped pile, the angle bead sleeves are of a hollow annular structure, multiple groups of connecting nuts are arranged on the upper end face of the special-shaped pile, and the angle bead sleeves are made of carbon steel.
Further, all be provided with the hoop in the pile body upper end and the lower extreme of heterotypic pile and encrypt the district, and be provided with the loose district of hoop in the pile body middle part of heterotypic pile to the spiral stirrup spiral in the hoop encryption district is intensive, and the spiral stirrup spiral in the loose district of hoop on the heterotypic pile is loose, and the spiral stirrup chooses for use the coarse reinforcement.
Furthermore, the connecting plate is installed through multiunit connecting screw rod to the up end of heterotypic stake, and connecting screw rod's lower extreme spiro union is in coupling nut to the split is connected between connecting plate and the heterotypic stake, and is provided with multiunit floor on the up end of connecting plate.
Furthermore, the outer ring surface of the pressure-resistant outer hoop is provided with a plurality of circles of spiral threads, and a gap is formed between two groups of the adjacent spiral threads.
Further, be provided with the upper nut on the lower terminal surface of upper segment stake pile wall, and install the prestressing steel in the upper nut, the lower extreme of prestressing steel is provided with the connector to be provided with big nut in the lower segment stake pile wall, the upper end of big nut is provided with middle nut, and has set the spring in the big nut, is provided with the packing ring on the up end of spring, and the locking plate is installed to middle nut's interior bottom, and the connector is pegged graft in middle nut.
A preparation method of a mechanically-connected prestressed concrete prefabricated special-shaped pile comprises the following steps:
according to the design specification of the invention, mechanically connecting prestressed concrete prefabricated special-shaped piles, wherein an integral unit special-shaped pile is mainly formed by mechanically connecting a plurality of sections of pile bodies a17, a plurality of sections of pile bodies b18 and a section of pile body c19, and firstly, moulds of the pile bodies a17, the pile bodies b18 and the pile body c19 are manufactured;
and B: placing reinforcing steel bars in the moulds of the pile body a17, the pile body b18 and the pile body c19 in a spiral mode, then pouring concrete in the moulds, inserting four groups of longitudinal bars into the concrete after pouring, wherein the four groups of longitudinal bars are arranged on the periphery of the spiral reinforcing steel bars in a surrounding mode;
step C, when a single pile body poured by concrete in the mould is about to dry, a plurality of groups of connecting nuts are arranged on the upper end surfaces of each pile body a17, b18 and C19, a plurality of groups of prestressed reinforcements are arranged on the lower end surfaces of each pile body a17, b18 and C19, and a connector is arranged at the lower end head of each group of prestressed reinforcements;
step D, as a pile body a17 at the upper end of the whole unit special-shaped pile, the spiral steel bars in the pile body a17 are pressed densely, and a corner protection sleeve is sleeved at the upper end of the pile body a 17;
step E, as a pile body b18 at the lower end of the whole unit special-shaped pile, the spiral steel bars in the pile body b18 are pressed densely, and a corner protection sleeve is sleeved at the lower end of the pile body b 18;
and F, mechanically connecting the pile bodies, installing a pile body c19 on the upper end face and the lower end face of the pile body c19 through the prestressed steel bars and the connecting nuts, installing a pile body b18 on the pile body c19 on the upper side and the lower side through the prestressed steel bars and the connecting nuts, and installing a pile body a17 on the pile body b18 on the upper side and the lower side through the prestressed steel bars and the connecting nuts, so that the integral unit special-shaped pile is formed.
And G, mechanically connecting a plurality of groups of pile bodies a17 sleeved with spiral stirrups, a plurality of groups of pile bodies b18 with thread surfaces and a plurality of groups of pile bodies c19 with connecting blocks, conveying the pile bodies into a curing pool, curing at high temperature until the concrete strength reaches a specified value, and integrally demolding to prepare the single mechanically-connected prestressed concrete prefabricated special-shaped pile.
Compared with the prior art, the invention has the beneficial effects that:
1. the single integral prestressed concrete prefabricated special-shaped pile is divided into a whole, so that the pile bodies can be produced uniformly, and the integral production efficiency is improved;
2. the pile is convenient to carry and transport while being convenient for unified production, and the pile body is not easy to damage;
3. the lower end of the prestressed reinforcement is provided with a connector so that the connector can be inserted into the connecting nut, and the connector is locked by a locking plate so that the connector can not be separated, thereby being beneficial to the close and firm connection of each pile body;
4. the concrete poured by each pile body is internally provided with spiral steel bars, and four groups of longitudinal bars are annularly arranged at the periphery of the bolt steel bars, so that the column body is high in strength and strong in folding resistance;
5. the multiple groups of compression-resistant outer hoops arranged on the single integral prestressed concrete prefabricated special-shaped pile are provided with the threaded outer ring surfaces, so that the surface invagination resistance of the column body is enhanced, and the outer connection strength between the pile body and the soil is enhanced after the pile body is buried, so that the pile body is buried more firmly.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of the present invention;
fig. 3 is an expanded schematic view of the special-shaped pile of the structure of the invention separated into a multi-section pile body a, a multi-section pile body b and a pile body c;
FIG. 4 is a schematic top view of a web constructed in accordance with the present invention;
FIG. 5 is a cross-sectional view of a web of the structure of the present invention;
FIG. 6 is a schematic view of the internal structure of the connecting block of the structure of the present invention;
FIG. 7 is a schematic view of a corner protector constructed in accordance with the present invention;
FIG. 8 is a schematic view of a helical stirrup of the present construction;
fig. 9 is a schematic view of the connection between the upper pile wall and the lower pile wall of the structure of the invention.
In the figure: 1. special-shaped piles; 110. pile wall of upper pile section; 111. a connector; 112. screwing a nut; 120. pile wall of lower pile section; 121. a middle nut; 122. a locking plate; 123. a gasket; 124. a spring; 125. a large nut; 2. connecting blocks; 3. longitudinal ribs; 4. helical thread; 5. a void; 6. a compression-resistant outer cuff; 7. a spiral stirrup; 8. a corner protecting sleeve; 9. a connecting nut; 10. pre-stressing the steel bars; 11. reinforcing steel bars; 12. a steel hoop loosening zone; 13. a steel hoop encryption zone; 14. a connecting plate; 15. a rib plate; 16. connecting a screw rod; 17. a pile body a; 18. a pile body b; 19. and (c) a pile body.
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. 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.
Example (b):
referring to fig. 1-9, the present invention provides a technical solution: a mechanically-connected prestressed concrete prefabricated special-shaped pile comprises a special-shaped pile 1, wherein multiple groups of upper pile wall 110 and lower pile wall 120 are arranged on the special-shaped pile 1, the upper pile wall 110 and the lower pile wall 120 are connected together at intervals, an upper nut 112 is arranged on the lower end face of the upper pile wall 110, a prestressed reinforcement 10 is arranged in the upper nut 112, a connector 111 is arranged at the lower end of the prestressed reinforcement 10, a large nut 125 is arranged in the lower pile wall 120, a middle nut 121 is arranged at the upper end of the large nut 125, a spring 124 is sleeved in the large nut 125, a gasket 123 is arranged on the upper end face of the spring 124, a locking piece 122 is arranged at the inner bottom of the middle nut 121, the connector 111 is inserted in the middle nut 121, a spiral stirrup 7 is arranged in the pile body of the special-shaped pile 1, and compression-resistant outer hoops 6 are sleeved on the pile body of the special-shaped pile 1 at multiple positions, the outer ring surface of the pressure-resistant outer hoop 6 is provided with a plurality of circles of spiral grains 4, a gap 5 is arranged between two adjacent groups of spiral grains 4, the inner ring of the pile body of the special-shaped pile 1 is provided with four groups of longitudinal ribs 3, the front side surface and the rear side surface of the middle part of the pile body of the special-shaped pile 1 are respectively provided with a plurality of groups of connecting blocks 2, each group of connecting blocks 2 is internally provided with a group of reinforcing steel bars 11, the upper end and the lower end of the special-shaped pile 1 are respectively sleeved with a corner protection sleeve 8, the corner protection sleeves 8 are in a hollow annular structure, the upper end surface of the special-shaped pile 1 is provided with a plurality of groups of connecting nuts 9, the corner protection sleeves 8 are made of carbon steel, the upper end and the lower end of the pile body of the special-shaped pile 1 are respectively provided with a steel hoop encryption area 13, the middle part of the pile body of the special-shaped pile 1 is internally provided with a steel hoop loosening area 12, spiral hoops 7 in the steel hoop encryption area 13 are spirally dense, and the spiral hoops 7 in the steel hoop loosening area 12 on the special-shaped pile 1 are spirally loose, and the spiral stirrup 7 selects thick steel bars, the connecting plate 14 is installed on the upper end face of the special-shaped pile 1 through a plurality of groups of connecting screws 16, the lower end of each connecting screw 16 is screwed in the connecting nut 9, the connecting plate 14 and the special-shaped pile 1 are connected in a split mode, and a plurality of groups of rib plates 15 are arranged on the upper end face of the connecting plate 14.
A preparation method of a mechanically-connected prestressed concrete prefabricated special-shaped pile comprises the following steps:
according to the design specification of the invention, mechanically connecting prestressed concrete prefabricated special-shaped piles, wherein an integral unit special-shaped pile is mainly formed by mechanically connecting a plurality of sections of pile bodies a, a plurality of sections of pile bodies b and a section of pile body c, and firstly, moulds of the pile bodies a, the pile bodies b and the pile bodies c are manufactured;
and B: placing reinforcing steel bars in the moulds of the pile body a17, the pile body b18 and the pile body c19 in a spiral mode, then pouring concrete in the moulds, inserting four groups of longitudinal bars into the concrete after pouring, wherein the four groups of longitudinal bars are arranged on the periphery of the spiral reinforcing steel bars in a surrounding mode;
step C, when a single pile body poured by concrete in the mould is about to dry, a plurality of groups of connecting nuts are arranged on the upper end surfaces of each pile body a17, b18 and C19, a plurality of groups of prestressed reinforcements are arranged on the lower end surfaces of each pile body a17, b18 and C19, and a connector is arranged at the lower end head of each group of prestressed reinforcements;
step D, as a pile body a17 at the upper end of the whole unit special-shaped pile, the spiral steel bars in the pile body a17 are pressed densely, and a corner protection sleeve is sleeved at the upper end of the pile body a 17;
step E, as a pile body b18 at the lower end of the whole unit special-shaped pile, the spiral steel bars in the pile body b18 are pressed densely, and a corner protection sleeve is sleeved at the lower end of the pile body b 18;
and F, mechanically connecting the pile bodies, installing a pile body c19 on the upper end face and the lower end face of the pile body c19 through the prestressed steel bars and the connecting nuts, installing a pile body b18 on the pile body c19 on the upper side and the lower side through the prestressed steel bars and the connecting nuts, and installing a pile body a17 on the pile body b18 on the upper side and the lower side through the prestressed steel bars and the connecting nuts, so that the integral unit special-shaped pile is formed.
And G, mechanically connecting a plurality of groups of pile bodies a17 sleeved with spiral stirrups, a plurality of groups of pile bodies b18 with thread surfaces and a plurality of groups of pile bodies c19 with connecting blocks, conveying the pile bodies into a curing pool, curing at high temperature until the concrete strength reaches a specified value, and integrally demolding to prepare the single mechanically-connected prestressed concrete prefabricated special-shaped pile.
When the mechanically-connected prestressed concrete prefabricated special-shaped pile and the preparation method are used, the spiral stirrups 7 in the special-shaped pile 1 are in a spiral ring shape, the spiral stirrups 7 in the upper end and the lower end of the special-shaped pile 1 are relatively dense relative to the spiral stirrups 7 in the middle, the strength of the upper end and the lower end of the special-shaped pile 1 is enhanced, the upper end head and the lower end head of the special-shaped pile 1 are sleeved with the angle bead sleeves 8, the upper end face and the lower end face are protected by the angle bead sleeves 8 to avoid damage, meanwhile, after a plurality of groups of pile bodies a sleeved with the spiral stirrups, a plurality of groups of pile bodies b with thread faces and a group of pile bodies c with connecting blocks are mechanically connected together, the lower end of one pile body and the adjacent pile body are inserted in the connecting nut through the prestressed reinforcement, and are locked through the locking plates in the nut, the connection is tight and firm, the integral strength of the special-shaped pile 1 is enhanced, and the special-shaped pile is durable in use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a prefabricated abnormal shape stake of mechanical connection prestressed concrete, includes abnormal shape stake (1), its characterized in that: the utility model discloses a special-shaped pile, including heterotypic stake (1), be provided with on the heterotypic stake (1) a plurality of sets of upper segment stake pile wall (110) and lower segment stake pile wall (120), and alternate the linking together between upper segment stake pile wall (110) and lower segment stake pile wall (120), install spiral stirrup (7) in the pile body of heterotypic stake (1), and many places cover have the outer hoop of resistance to compression (6) on the pile body of heterotypic stake (1), the pile body inner ring of heterotypic stake (1) is equipped with four vertical muscle (3) of group, and all sets up multiunit connecting block (2) on the pile body middle part leading flank and the trailing flank of heterotypic stake (1) to all install a set of reinforcing bar (11) in every group connecting block (2).
2. The mechanically connected prestressed concrete prefabricated special-shaped pile according to claim 1, characterized in that: the angle bead sleeve (8) is sleeved on the upper end and the lower end head of the special-shaped pile (1), the angle bead sleeve (8) is of a hollow annular structure, a plurality of groups of connecting nuts (9) are arranged on the upper end face of the special-shaped pile (1), and the angle bead sleeve (8) is made of carbon steel.
3. The mechanically connected prestressed concrete prefabricated special-shaped pile according to claim 1, characterized in that: all be provided with steel hoop encryption district (13) in the pile body upper end and the lower extreme of heterotypic pile (1), and be provided with the loose district of steel hoop (12) in the pile body middle part of heterotypic pile (1) to spiral stirrup (7) spiral in steel hoop encryption district (13) is intensive, and spiral stirrup (7) spiral in the loose district of steel hoop (12) is loose on heterotypic pile (1), and spiral stirrup (7) select for use the coarse reinforcement.
4. The mechanically connected prestressed concrete prefabricated special-shaped pile according to claim 1, characterized in that: connecting plate (14) are installed through multiunit connecting screw (16) to the up end of heterotypic stake (1), and the lower extreme spiro union of connecting screw (16) is in coupling nut (9) to the split is connected between connecting plate (14) and heterotypic stake (1), and is provided with multiunit floor (15) on the up end of connecting plate (14).
5. The mechanically connected prestressed concrete prefabricated special-shaped pile according to claim 1, characterized in that: the outer ring surface of the pressure-resistant outer hoop (6) is provided with a plurality of circles of spiral threads (4), and a gap (5) is arranged between two groups of the adjacent spiral threads (4).
6. The mechanically connected prestressed concrete prefabricated special-shaped pile according to claim 1, characterized in that: the lower end face of the upper pile wall (110) is provided with an upper nut (112), a prestressed steel bar (10) is installed in the upper nut (112), the lower end of the prestressed steel bar (10) is provided with a connector (111), a large nut (125) is arranged in the lower pile wall (120), the upper end of the large nut (125) is provided with a middle nut (121), a spring (124) is sleeved in the large nut (125), the upper end face of the spring (124) is provided with a gasket (123), a locking plate (122) is installed at the inner bottom of the middle nut (121), and the connector (111) is inserted in the middle nut (121).
7. A preparation method of a mechanically-connected prestressed concrete prefabricated special-shaped pile comprises the following steps:
according to the design specification of the invention, mechanically connecting prestressed concrete prefabricated special-shaped piles, wherein an integral unit special-shaped pile is mainly formed by mechanically connecting a plurality of sections of pile bodies a (17), a plurality of sections of pile bodies b (18) and a section of pile body c (19), and firstly, moulds of the pile bodies a (17), the pile bodies b (18) and the pile body c (19) are manufactured;
and B: placing reinforcing steel bars in a spiral mode in a mould of a pile body a (17), a pile body b (18) and a pile body c (19), pouring concrete in the mould, inserting four groups of longitudinal reinforcing steel bars into the concrete after pouring, wherein the four groups of longitudinal reinforcing steel bars are annularly arranged on the periphery of the spiral reinforcing steel bars;
step C, when a single pile body poured by concrete in the mould is about to dry, a plurality of groups of connecting nuts are arranged on the upper end surfaces of each pile body a (17), the pile body b (18) and the pile body C (19), a plurality of groups of prestressed reinforcements are arranged on the lower end surfaces of each pile body a (17), the pile body b (18) and the pile body C (19), and a connector is arranged at the lower end head of each group of prestressed reinforcements;
step D, as a section of pile body a (17) at the upper end of the whole unit special-shaped pile, the spiral steel bars in the section of pile body a (17) are pressed densely, and the upper end of the section of pile body a (17) is sleeved with an angle bead sleeve;
step E, as a section of pile body b (18) at the lower end of the whole unit special-shaped pile, the spiral steel bars in the section of pile body b (18) are pressed densely, and a corner protection sleeve is sleeved at the lower end of the section of pile body b (18);
and F, mechanically connecting the pile bodies, installing a pile body c (19) on the upper end surface and the lower end surface of the pile body c (19) through the prestressed steel bars and the connecting nuts, installing a pile body b (18) on the pile body c (19) on the upper side and the lower side through the prestressed steel bars and the connecting nuts, and installing a pile body a (17) on the pile body b (18) on the upper side and the lower side through the prestressed steel bars and the connecting nuts to form the integral unit special-shaped pile.
And G, mechanically connecting a plurality of groups of pile bodies a (17) sleeved with spiral stirrups, a plurality of groups of pile bodies b (18) provided with thread surfaces and a plurality of groups of pile bodies c (19) provided with connecting blocks together, conveying the pile bodies into a curing pool, curing at high temperature until the strength of concrete reaches a specified value, and then integrally demolding to prepare the single mechanically-connected prestressed concrete prefabricated special-shaped pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425314.2A CN113914312A (en) | 2021-11-26 | 2021-11-26 | Mechanically-connected prestressed concrete prefabricated special-shaped pile and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425314.2A CN113914312A (en) | 2021-11-26 | 2021-11-26 | Mechanically-connected prestressed concrete prefabricated special-shaped pile and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113914312A true CN113914312A (en) | 2022-01-11 |
Family
ID=79248082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111425314.2A Pending CN113914312A (en) | 2021-11-26 | 2021-11-26 | Mechanically-connected prestressed concrete prefabricated special-shaped pile and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113914312A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001011851A (en) * | 1999-06-29 | 2001-01-16 | Hiroshi Kitamura | Joint structure of concrete pile |
| CN102392440A (en) * | 2011-07-26 | 2012-03-28 | 杭州固华复合材料科技有限公司 | High-toughness pipe pile and manufacturing method thereof |
| CN103225297A (en) * | 2013-03-29 | 2013-07-31 | 南通中技桩业有限公司 | Strengthening structure of prestressed hollow square pile |
| CN106284307A (en) * | 2016-10-14 | 2017-01-04 | 福州大学 | Threaded prefabricated U HPC pile tube and making construction method thereof |
| CN208777416U (en) * | 2018-07-25 | 2019-04-23 | 泰州市恒瑞管桩有限公司 | A kind of variable diameter precast concrete drainpipe |
| CN110499755A (en) * | 2019-09-02 | 2019-11-26 | 江阴市隆烽预制构件有限公司 | Prestressed concrete solid pile |
| CN111058440A (en) * | 2019-12-23 | 2020-04-24 | 南京钜力智能制造技术研究院有限公司 | Mechanical connecting device of concrete precast pile and manufacturing method |
| CN210597406U (en) * | 2019-08-01 | 2020-05-22 | 陈海波 | High-strength uplift pile mechanical connecting device |
| CN214656953U (en) * | 2020-12-30 | 2021-11-09 | 浙江正大管桩有限公司 | High-strength concrete pipe pile |
-
2021
- 2021-11-26 CN CN202111425314.2A patent/CN113914312A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001011851A (en) * | 1999-06-29 | 2001-01-16 | Hiroshi Kitamura | Joint structure of concrete pile |
| CN102392440A (en) * | 2011-07-26 | 2012-03-28 | 杭州固华复合材料科技有限公司 | High-toughness pipe pile and manufacturing method thereof |
| CN103225297A (en) * | 2013-03-29 | 2013-07-31 | 南通中技桩业有限公司 | Strengthening structure of prestressed hollow square pile |
| CN106284307A (en) * | 2016-10-14 | 2017-01-04 | 福州大学 | Threaded prefabricated U HPC pile tube and making construction method thereof |
| CN208777416U (en) * | 2018-07-25 | 2019-04-23 | 泰州市恒瑞管桩有限公司 | A kind of variable diameter precast concrete drainpipe |
| CN210597406U (en) * | 2019-08-01 | 2020-05-22 | 陈海波 | High-strength uplift pile mechanical connecting device |
| CN110499755A (en) * | 2019-09-02 | 2019-11-26 | 江阴市隆烽预制构件有限公司 | Prestressed concrete solid pile |
| CN111058440A (en) * | 2019-12-23 | 2020-04-24 | 南京钜力智能制造技术研究院有限公司 | Mechanical connecting device of concrete precast pile and manufacturing method |
| CN214656953U (en) * | 2020-12-30 | 2021-11-09 | 浙江正大管桩有限公司 | High-strength concrete pipe pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101914914B (en) | Concrete pre-stress hollow square pile and molding method thereof | |
| US9340946B2 (en) | Pile casing | |
| CN113718765A (en) | Hollow fender pile of prestressing force high-strength concrete | |
| CN102211353A (en) | Process for manufacturing centrifugal concrete pile | |
| CN208263146U (en) | A kind of mold for formation of concrete tubular pole | |
| CN102373702B (en) | Concrete circular pile and processing method thereof | |
| WO1995033947A1 (en) | Interlocked plastic-encased concrete pipe | |
| CN114351751A (en) | Lightweight assembly type wind power structure foundation and assembly method thereof | |
| CN201428138Y (en) | Combined foundation of large-sized tower mast type mechanical equipment | |
| CN113914312A (en) | Mechanically-connected prestressed concrete prefabricated special-shaped pile and preparation method thereof | |
| CN114000417A (en) | Socket-type prefabricated pier and construction method | |
| CN203613533U (en) | Reinforced prestressed pipe pile | |
| CN110953125A (en) | Prefabricated polygonal prestressed concrete tower cylinder and manufacturing mold of cylinder sections thereof | |
| CN208136920U (en) | A kind of triangle prestressing force foundation pit supporting pile and its connection structure | |
| CN216615797U (en) | Recoverable precast pile structure | |
| CN212896462U (en) | Grid reinforced composite structure underground well | |
| CN201778323U (en) | Building foundation pit prestress cuboid soldier pile and forming mold thereof | |
| CN214575669U (en) | Inclined cylindrical supporting structure system | |
| KR100594684B1 (en) | A construction method of the sole geology reinforcement pole and the reinforcement soil wall | |
| CN113846627A (en) | Recyclable precast pile structure and production method and construction method thereof | |
| CN106930471A (en) | A kind of quick assembled type pipe constrains prestressed component | |
| CN101503880B (en) | Large combined base with mast type structure | |
| CN109629709B (en) | Infilled wall applying pre-stress through building blocks with bolts and construction method | |
| KR101270502B1 (en) | Precast concrete for member of framework with none sleeve | |
| CN111335442A (en) | Large integral inspection well and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |