CN110409432B - Prestressed steel pipe pile of concrete dado - Google Patents
Prestressed steel pipe pile of concrete dado Download PDFInfo
- Publication number
- CN110409432B CN110409432B CN201910667776.1A CN201910667776A CN110409432B CN 110409432 B CN110409432 B CN 110409432B CN 201910667776 A CN201910667776 A CN 201910667776A CN 110409432 B CN110409432 B CN 110409432B
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- Prior art keywords
- pipe pile
- steel pipe
- fixing
- fixed
- connector
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Abstract
The invention relates to the technical field of steel pipe piles, in particular to a prestressed steel pipe pile of a concrete retaining wall, which comprises a first steel pipe pile structure, a connector, a second steel pipe pile structure, a supporting structure and a fixing structure, wherein the first steel pipe pile structure for grouting and fixing is connected with the connector which is used for connection and is symmetrically provided with semi-arc structure sliding chutes at the outer part, and the connector is connected with the second steel pipe pile structure for extending a steel pipe pile; make better the fixing on the connector of first steel-pipe pile structure and second steel-pipe pile structure through fixed knot structure, the inflation dynamics after the fixed knot structure solidifies the inside grout of connector is alleviated at the in-process of work, reduce the internal pressure of connector, use through the cooperation of fixed knot structure and bearing structure, bearing structure carries out better support to the connector inside fixed, prevent that the connector from receiving stake hole external pressure extrusion and damaging, avoid first steel-pipe pile structure and second steel-pipe pile body to break away from the connector.
Description
Technical Field
The invention relates to the technical field of steel pipe piles, in particular to a prestressed steel pipe pile of a concrete retaining wall.
Background
The steel pipe pile consists of steel pipe, tongue-and-groove and tongue-and-groove pin, the tongue-and-groove is vertically connected to the left pipe wall of the steel pipe, the cross section of the tongue-and-groove is square frame with one open side, the side of the tongue-and-groove is provided with reinforcing ribs, the tongue-and-groove pin is vertically connected to the right pipe wall of the steel pipe and at the position with partial radius, and the groove section of the tongue-and-groove pin is I-shaped, so that the functions of water enclosing, soil enclosing, sand enclosing and the like can be achieved.
When longer steel-pipe pile need be squeezed into in some stake holes and the soil is consolidated, longer stake hole can not be satisfied in the length of a traditional steel-pipe pile, need two steel-pipe piles to link together through the connector and squeeze into the downthehole portion of stake, because two steel-pipe piles utilize the connector to connect to fill in behind the concrete grout, make steel-pipe pile internal pressure increase after the grout solidification, lead to the connector inflation to destroy easily, one causes two steel-pipe piles to break away from the connector, influences the soil consolidation effect of steel-pipe pile.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a prestressed steel pipe pile of a concrete retaining wall, wherein a first steel pipe pile structure and a second steel pipe pile structure are better fixed on a connector through a fixing structure, the fixing structure relieves the expansion force after the cement paste in the connector is cured in the working process, the internal pressure of the connector is reduced, the supporting structure better supports and fixes the interior of the connector through the matching use of the fixing structure and the supporting structure, the connector is prevented from being damaged due to the extrusion of the external pressure of a pile hole, and the first steel pipe pile structure and the second steel pipe pile body are prevented from being separated from the connector; through bearing structure and fixed knot structure's linkage, inside bearing structure made the further better fixed knot structure that enters into of grout, make first steel-pipe pile structure and second steel-pipe pile structure and connector fixed after the work of fixed knot structure, increase the inside intensity of fixed knot structure simultaneously, support the connector inside.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a prestressed steel tubular pile of concrete dado, includes first steel-pipe pile structure, connector, second steel-pipe pile structure, bearing structure and fixed knot structure for slip casting, fixed first steel-pipe pile structure is connected with the outside symmetry that is used for connecting and has seted up half arc structure spout the connector, the connector is connected with and is used for prolonging the steel-pipe pile second steel-pipe pile structure, connector internal connection has and is used for fixing first steel-pipe pile structure with second steel-pipe pile structure the fixed knot constructs, fixed knot constructs the connection first steel-pipe pile structure with second steel-pipe pile structure, connector internal connection has and is used for supporting, increases compressive capacity the bearing structure, the bearing structure is connected the fixed knot constructs.
Specifically, first steel-pipe pile structure includes fixing base, slip casting hole, first steel-pipe pile body, flexure strip and spacing groove, and is inside hollow first steel-pipe pile body is fixed with inside cavity the connector, first steel-pipe pile body top is fixed with the fixing base, two have been seted up to the fixing base symmetry the slip casting hole, two have been seted up to first steel-pipe pile body symmetry the spacing groove, two the spacing groove all is located inside the connector, two the equal symmetry of spacing inslot portion is fixed with and is domes the flexure strip.
Specifically, the second steel-pipe pile structure includes second steel-pipe pile body, fixed head and grout outlet, the connector is fixed with the second steel-pipe pile body, the second steel-pipe pile body with minimum vertical distance between the first steel-pipe pile body is less than the length of connector, second steel-pipe pile body intercommunication first steel-pipe pile body, second steel-pipe pile body bottom mounting has the fixed head, the fixed head intercommunication the second steel-pipe pile body, the fixed head has seted up grout outlet, grout outlet communicate in inside the second steel-pipe pile body, two have been seted up to second steel-pipe pile body symmetry the spacing groove, two the spacing groove all is located inside the connector, two equal symmetry in the spacing inslot is fixed with two the flexure strip.
Specifically, the fixing structure comprises a fixing pipe, a fixing block, a second spring and limiting blocks, wherein two fixing pipes with cross sections in a structure shaped like a Chinese character 'ji' are symmetrically fixed inside the connector, the two fixing pipes are both positioned between the first steel pipe pile body and the second steel pipe pile body, the fixing pipe is communicated with the limiting grooves inside the first steel pipe pile body and the second steel pipe pile body, the two fixing pipes are symmetrically and slidably connected with the two fixing blocks in a T-shaped structure, one side of each fixing block is in an arc structure, the minimum width of each fixing block is greater than the minimum vertical distance between the two elastic sheets inside the limiting grooves, the length of each fixing block is greater than that of the limiting grooves, the two limiting blocks are fixed inside the fixing pipe, and the two fixing blocks are respectively and slidably connected with the two limiting blocks, the second spring is fixed between the fixed block and the limiting block, and the fixed block penetrates through the inside of the second spring.
Specifically, the supporting structure comprises fixing sleeves, supporting blocks, a first spring and a slurry inlet hole, the two fixing pipes are fixed with the fixing sleeves with hollow interiors, the two fixing sleeves are respectively communicated with the two fixing pipes, the two fixing sleeves are positioned in the connector, the two fixing sleeves are respectively connected with the supporting blocks in T-shaped structures in a sliding manner, the supporting blocks are positioned outside the fixed sleeves and are of arc structures, the minimum distance between the two supporting blocks is smaller than the distance between the two fixed sleeves, the first spring is fixed between the supporting block and the fixed sleeve, the supporting block penetrates through the first spring, the slurry inlet holes are formed in the side walls of the top ends of the two fixed sleeves, the two slurry inlet holes are respectively communicated with the two fixed pipes, and the inner diameter of the slurry inlet hole is gradually reduced from the top end to the bottom end.
The invention has the beneficial effects that:
(1) according to the prestressed steel pipe pile of the concrete retaining wall, the first steel pipe pile structure and the second steel pipe pile structure are better fixed on the connector through the fixing structure, the expansion force of the solidified cement paste in the connector is relieved by the fixing structure in the working process, the internal pressure of the connector is reduced, the supporting structure better supports and fixes the interior of the connector through the matching use of the fixing structure and the supporting structure, the connector is prevented from being damaged due to extrusion of the external pressure of a pile hole, and the first steel pipe pile structure and the second steel pipe pile body are prevented from being separated from the connector.
(2) According to the prestressed steel pipe pile of the concrete retaining wall, provided by the invention, through linkage of the supporting structure and the fixing structure, cement paste can better enter the fixing structure through the supporting structure, so that the first steel pipe pile structure and the second steel pipe pile structure are fixed with the connector after the fixing structure works, meanwhile, the strength in the fixing structure is increased, and the interior of the connector is supported.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram illustrating an overall structure of a pre-stressed steel pipe pile for a concrete retaining wall according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the connection structure of the connection head, the fixing structure and the supporting structure shown in FIG. 1;
FIG. 3 is an enlarged view of the part A shown in FIG. 2;
FIG. 4 is an enlarged view of the portion B shown in FIG. 2;
fig. 5 is a schematic cross-sectional structure view of the connection head shown in fig. 1.
In the figure: 1. first steel-pipe pile structure, 11, a fixed base, 12, the slip casting hole, 13, first steel-pipe pile body, 14, the flexure strip, 15, the spacing groove, 2, the connector, 3, second steel-pipe pile structure, 31, second steel-pipe pile body, 32, the fixed head, 33, the play thick liquid hole, 4, bearing structure, 41, fixed cover, 42, the supporting shoe, 43, first spring, 44, advance thick liquid hole, 5, fixed structure, 51, the fixed pipe, 52, the fixed block, 53, the second spring, 54, the stopper.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-5, the prestressed steel pipe pile for a concrete retaining wall according to the present invention includes a first steel pipe pile structure 1, a connector 2, a second steel pipe pile structure 3, a supporting structure 4 and a fixing structure 5, the first steel pipe pile structure for grouting and fixing is connected with the connecting heads 2 which are symmetrically provided with semi-arc structure sliding chutes at the outer parts for connection, the connector 2 is connected with the second steel pipe pile structure 3 for extending the steel pipe pile, the connector 2 is internally connected with the fixing structure 5 for fixing the first steel pipe pile structure 1 and the second steel pipe pile structure 3, the fixing structure 5 connects the first steel-pipe pile structure 1 and the second steel-pipe pile structure 3, the connector 2 internal connection have be used for supporting, increase compressive capacity bearing structure 4, bearing structure 4 connects fixed knot constructs 5.
Specifically, the first steel pipe pile structure 1 comprises a fixed seat 11, grouting holes 12, a first steel pipe pile body 13, an elastic sheet 14 and limiting grooves 15, wherein the first steel pipe pile body 13 with a hollow interior is fixed with the connector 2 with a hollow interior, the fixed seat 11 is fixed at the top end of the first steel pipe pile body 13, the fixed seat 11 is symmetrically provided with two grouting holes 12, the first steel pipe pile body 13 is symmetrically provided with two limiting grooves 15, the two limiting grooves 15 are both located inside the connector 2, and the elastic sheet 14 with an arch structure is symmetrically fixed inside the two limiting grooves 15; in order to cure the first steel-pipe pile body 13 by filling cement paste into the first steel-pipe pile body 13, after the first steel-pipe pile body 13 is inserted into the pile hole, cement paste is filled between the outer side wall of the first steel-pipe pile body 13 and the inner side wall of the pile hole through the grouting hole 12, so that the first steel-pipe pile body 13 is fixed inside the pile hole, and further, the effect of soil fixation is achieved.
Specifically, the second steel-pipe pile structure 3 includes a second steel-pipe pile body 31, a fixing head 32, and a grout outlet 33, the second steel pipe pile body 31 is fixed to the connector 2, the minimum vertical distance between the second steel pipe pile body 31 and the first steel pipe pile body 13 is smaller than the length of the connector 2, the second steel-pipe pile body 31 is communicated with the first steel-pipe pile body 13, the fixing head 32 is fixed to the bottom end of the second steel-pipe pile body 31, the fixing head 32 is communicated with the second steel pipe pile body 31, the fixing head 32 is provided with the grout outlet 33, the grout outlet 33 is communicated with the inside of the second steel pipe pile body 31, the second steel pipe pile body 31 is symmetrically provided with two limiting grooves 15, the two limiting grooves 15 are both positioned inside the connector 2, and the two elastic pieces 14 are symmetrically fixed inside the two limiting grooves 15; in order to increase the length of the steel pipe pile by connecting the first steel pipe pile body 13 and the second steel pipe pile body 31 through the connector 2, so as to adapt to a long pile hole, the first steel pipe pile body 13 and the second steel pipe pile body 31 are conveniently inserted into the pile hole through the fixing head 32, and some cement paste is conveniently flowed between the second steel pipe pile body 31 and the pile hole through the grout outlet 33 in the fixing head 32, so that the second steel pipe pile 31 is better connected and fixed with soil in the pile hole.
Specifically, the fixed structure 5 includes a fixed pipe 51, a fixed block 52, a second spring 53 and a limit block 54, two fixed pipes 51 with cross sections in a zigzag structure are symmetrically fixed inside the connector 2, the two fixed pipes 51 are both located between the first steel pipe pile body 13 and the second steel pipe pile body 31, the fixed pipe 51 communicates with the limit groove 15 inside the first steel pipe pile body 13 and the second steel pipe pile body 31, the two fixed pipes 51 are both symmetrically and slidably connected with the two fixed blocks 52 in a T-shaped structure, one side of each fixed block 52 is in an arc structure, the minimum width of each fixed block 52 is greater than the minimum vertical distance between the two elastic pieces 14 inside the limit groove 15, the length of each fixed block 52 is greater than the length of the limit groove 15, the two limit blocks 54 are fixed inside the fixed pipe 51, the two fixing blocks 52 are respectively connected with the two limiting blocks 54 in a sliding manner, the second spring 53 is fixed between the fixing blocks 52 and the limiting blocks 54, and the fixing blocks 52 penetrate through the second spring 53; in order to start pushing the two fixing blocks 52 and to contract the second spring 53 to generate elastic force after the grout is injected into the first steel pipe pile body 13 and flows into the fixing pipe 51 from the grout inlet 44 of the top side wall of the fixing sleeve 41 by the self-gravity of the grout, and the grout in the fixing pipe 51 accumulates more, the two fixing blocks 52 are pushed into the limiting grooves 15 in the first steel pipe pile body 13 and the second steel pipe pile body 31, respectively, the fixing blocks 52 start to press the two elastic pieces 14 in the limiting grooves 15 to generate elastic force on the two elastic pieces 14, and after the fixing blocks 52 enter the limiting grooves 15, the fixing blocks 52 are well fixed in the limiting grooves 15 by clamping the two elastic pieces 14 and pressing the elastic force of the second spring 53, therefore, the first steel pipe pile body 13 and the second steel pipe pile body 31 can be more stably fixed on the connector 2, after cement paste in the fixed pipe 51 is gradually solidified, expansion force after the cement is solidified is relieved by the elastic force of the second spring 53, and the solidified cement continues to extrude and push the fixed block 52, so that the fixed block 52 cannot be separated from the limiting groove 15, and the connector 2 can better fix the first steel pipe pile body 13 and the second steel pipe pile body 31.
Specifically, the supporting structure 4 includes fixing sleeves 41, supporting blocks 42, first springs 43 and slurry inlet holes 44, the two fixing pipes 51 are fixed with the fixing sleeves 41 with hollow interiors, the two fixing sleeves 41 are respectively communicated with the two fixing pipes 51, the two fixing sleeves 41 are both located inside the connector 2, the two fixing sleeves 41 are both slidably connected with the supporting blocks 42 in a T-shaped structure, the supporting blocks 42 are located outside the fixing sleeves 41 and have an arc-shaped structure, the minimum distance between the two supporting blocks 42 is smaller than the distance between the two fixing sleeves 41, the first springs 43 are fixed between the supporting blocks 42 and the fixing sleeves 41, the supporting blocks 42 penetrate through the inside of the first springs 43, the slurry inlet holes 44 are respectively formed in the side walls of the top ends of the two fixing sleeves 41, the two slurry inlet holes 44 are respectively communicated with the two fixing pipes 51, the inner diameter of the slurry inlet hole 44 is gradually reduced from the top end to the bottom end; in order to intermittently inject grout into the first steel pipe pile body 13, enter the grout from the grout inlet 44 into the fixed pipe 51 during the dropping of the grout, simultaneously impact the arc-shaped structures on one side of the two support blocks 42 during the dropping of the grout, push the support blocks 42 into the fixed sleeve 41, contract the first springs 43 to generate elastic force, further push the grout dropping from the grout inlet 44 into the fixed pipe 51 during the sliding of the support blocks 42 toward the fixed pipe 51, reduce the grout dropping into the arc-shaped structures of the support blocks 42 to restore the support blocks 42 to the original positions by the elastic force of the first springs 43 when the grout injected into the first steel pipe pile body 13 is reduced, and inject a large amount of grout into the first steel pipe pile body 13 again, a part of the cement slurry flows into the fixed pipe 51 from the slurry inlet 44, and the other part of the cement slurry falls to push the support block 42 to flow into the bottom end of the second steel pipe pile body 31, so that the support block 42 slides back and forth on the fixed sleeve 41 to push the cement slurry falling from the slurry inlet into the fixed pipe 51, the amount of the cement slurry in the fixed pipe 51 increases, and the strength in the fixed pipe 51 increases.
When in use, the first steel pipe pile body and the second steel pipe pile body are connected through the connector and then inserted into the pile hole after being drilled, cement paste is intermittently injected into the first steel pipe pile body, so that the cement paste is injected into the first steel pipe pile body and the second steel pipe pile body step by step, the cement paste enters the fixed pipe 51 from the grout inlet hole 44 in the falling process, simultaneously the cement paste impacts the arc-shaped structures at one side of the two supporting blocks 42 in the falling process, after the supporting blocks 42 are pushed into the fixed sleeve 41, the first spring 43 is contracted to generate elastic force, meanwhile, the cement paste falling from the grout inlet hole 44 is further pushed into the fixed pipe 51 in the sliding process of the supporting blocks 42 towards the fixed pipe 51, when the cement paste injected into the first steel pipe pile body 13 is reduced, the cement paste falling into the arc-shaped structures of the supporting blocks 42 is reduced to enable the supporting blocks 42 to be restored to the original positions through the elastic force of the first spring 43, after a large amount of cement paste is injected into the first steel pipe pile body 13 again, a part of the cement paste flows into the fixed pipe 51 from the grout inlet 44, the other part of the cement paste falls to push the supporting block 42 to flow into the bottom end of the second steel pipe pile body 31, the supporting block 42 slides on the fixing sleeve 41 in a reciprocating manner to push the cement paste falling from the grout inlet into the fixed pipe 51, the cement paste amount in the fixed pipe 51 is increased, the strength in the fixed pipe 51 is increased, the more the cement paste in the fixed pipe 51 is accumulated, the two fixing blocks 52 start to be pushed, the second spring 53 contracts to generate elastic force, the two fixing blocks 52 are respectively pushed into the limiting grooves 15 in the first steel pipe pile body 13 and the second steel pipe pile body 31, the fixing blocks 52 start to squeeze the two elastic pieces 14 in the limiting grooves 15, the two elastic pieces 14 generate elastic force, and after the fixing blocks 52 enter the limiting grooves 15, the fixing block 52 is well fixed inside the limiting groove 15 by the clamping of the two elastic pieces 14 and the elastic extrusion of the second spring 53, so that the first steel pipe pile body 13 and the second steel pipe pile body 31 can be more stably fixed on the connector 2, after cement slurry inside the fixed pipe 51 is gradually cured, the expansion force after the cement is cured is reduced by the elastic force of the second spring 53, the cured cement continues to extrude and push the fixing block 52, so that the fixing block 52 cannot be separated from the limiting groove 15, so that the connector 2 can better fix the first steel pipe pile body 13 and the second steel pipe pile body 31, after the inside of the fixed pipe 51 is filled with cement slurry, the cement slurry inside the fixed pipe 51 starts to push the two supporting blocks 42, so that the two supporting blocks 42 slide in the same direction and mutually abut against each other, so that the inside of the connector 2 is supported by the two supporting blocks 42 after the cement inside the fixed pipe 51 is cured, further increase the inside intensity of connector 2, avoid connector 2 to be extruded by the soil rock around the stake hole and damage, continue to pour into grout into first steel-pipe pile body 13 inside at last, after filling up grout in first steel-pipe pile body 13 and second steel-pipe pile body 31 inside, accomplish the steel-pipe pile and insert the stake hole.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a prestressed steel tubular pile of concrete dado which characterized in that: comprises a first steel pipe pile structure (1), a connector (2), a second steel pipe pile structure (3), a supporting structure (4) and a fixing structure (5), the first steel pipe pile structure (1) for grouting and fixing is connected with the connecting head (2) which is used for connection and is symmetrically provided with circular arc structure sliding chutes at the outer part, the connector (2) is connected with the second steel pipe pile structure (3) for extending the steel pipe pile, the connector (2) is internally connected with the fixing structure (5) for fixing the first steel pipe pile structure (1) and the second steel pipe pile structure (3), the fixing structure (5) is connected with the first steel pipe pile structure (1) and the second steel pipe pile structure (3), the supporting structure (4) used for supporting and increasing the pressure resistance is connected inside the connector (2), and the supporting structure (4) is connected with the fixing structure (5);
the first steel pipe pile structure (1) comprises a fixing seat (11), grouting holes (12), a first steel pipe pile body (13), an elastic sheet (14) and limiting grooves (15), wherein the first steel pipe pile body (13) which is hollow inside is fixed with the connector (2) which is hollow inside, the fixing seat (11) is fixed at the top end of the first steel pipe pile body (13), the fixing seat (11) is symmetrically provided with two grouting holes (12), the first steel pipe pile body (13) is symmetrically provided with two limiting grooves (15), the two limiting grooves (15) are both located inside the connector (2), and the elastic sheet (14) which is of an arch structure is symmetrically fixed inside the two limiting grooves (15);
the second steel pipe pile structure (3) comprises a second steel pipe pile body (31), a fixing head (32) and a grout outlet hole (33), the second steel pipe pile body (31) is fixed on the connector (2), the minimum vertical distance between the second steel pipe pile body (31) and the first steel pipe pile body (13) is smaller than the length of the connector (2), the second steel pipe pile body (31) is communicated with the first steel pipe pile body (13), the fixing head (32) is fixed at the bottom end of the second steel pipe pile body (31), the fixing head (32) is communicated with the second steel pipe pile body (31), the grout outlet hole (33) is formed in the fixing head (32), the grout outlet hole (33) is communicated with the interior of the second steel pipe pile body (31), two limiting grooves (15) are symmetrically formed in the second steel pipe pile body (31), the two limiting grooves (15) are both positioned inside the connector (2), and the two elastic pieces (14) are symmetrically fixed inside the two limiting grooves (15);
the fixing structure (5) comprises a fixing pipe (51), fixing blocks (52), a second spring (53) and a limiting block (54), the fixing pipes (51) with the cross sections in the structure shaped like Chinese character 'ji' are symmetrically fixed in the connector (2), the two fixing pipes (51) are both positioned between the first steel pipe pile body (13) and the second steel pipe pile body (31), the fixing pipes (51) are communicated with the limiting grooves (15) in the first steel pipe pile body (13) and the second steel pipe pile body (31), the two fixing blocks (52) with the structure shaped like T are symmetrically and slidably connected in the two fixing pipes (51), one side of each fixing block (52) is in an arc structure, and the minimum width of each fixing block (52) is greater than the minimum vertical distance between the two elastic sheets (14) in the limiting groove (15), the length of the fixing block (52) is greater than that of the limiting groove (15), two limiting blocks (54) are fixed inside the fixing pipe (51), the two fixing blocks (52) are respectively connected with the two limiting blocks (54) in a sliding mode, the second spring (53) is fixed between the fixing block (52) and the limiting blocks (54), and the fixing block (52) penetrates through the inside of the second spring (53);
the supporting structure (4) comprises a fixed sleeve (41), a supporting block (42), a first spring (43) and a slurry inlet hole (44), wherein the fixed pipe (51) is fixed with a hollow fixed sleeve (41), the fixed sleeve (41) is communicated with the fixed pipe (51) respectively, the fixed sleeve (41) is located inside the connector (2), the fixed sleeve (41) is connected with the supporting block (42) in a T-shaped structure in a sliding mode, the supporting block (42) is located outside the fixed sleeve (41) in an arc-shaped structure, the minimum distance between the supporting blocks (42) is smaller than two, the distance between the fixed sleeves (41) is smaller than two, the first spring (43) is fixed between the supporting block (42) and the fixed sleeve (41), and the supporting block (42) penetrates through the inside of the first spring (43), the slurry inlet holes (44) are formed in the side walls of the top ends of the two fixed sleeves (41), the two slurry inlet holes (44) are respectively communicated with the two fixed pipes (51), and the inner diameters of the slurry inlet holes (44) from the top ends to the bottom ends are gradually reduced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910667776.1A CN110409432B (en) | 2019-07-23 | 2019-07-23 | Prestressed steel pipe pile of concrete dado |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910667776.1A CN110409432B (en) | 2019-07-23 | 2019-07-23 | Prestressed steel pipe pile of concrete dado |
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| CN110409432B true CN110409432B (en) | 2021-01-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110952536A (en) * | 2019-12-17 | 2020-04-03 | 中交路桥建设有限公司 | Steel pipe pile |
| CN113957889A (en) * | 2021-11-17 | 2022-01-21 | 东莞嘉誉诚建设基础工程有限公司 | Grouting type prestressed pipe pile and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205934910U (en) * | 2016-08-08 | 2017-02-08 | 福建永强岩土股份有限公司 | End board |
| CN206143757U (en) * | 2016-05-31 | 2017-05-03 | 刘清洁 | It expands bored concrete pile stake pipe and pile driver to add elongated immersed tube rammer |
| CN107882023A (en) * | 2017-09-14 | 2018-04-06 | 江苏麦廊新材料科技有限公司 | Resistance to plucking bending resistance quick union and concrete precast pile |
| CN208219657U (en) * | 2018-05-21 | 2018-12-11 | 山东威建岩土科技有限公司 | A kind of closed type plug-in type slip casting foundation pile |
| JP2018197436A (en) * | 2017-05-23 | 2018-12-13 | 旭化成建材株式会社 | Steel pipe joint device |
-
2019
- 2019-07-23 CN CN201910667776.1A patent/CN110409432B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206143757U (en) * | 2016-05-31 | 2017-05-03 | 刘清洁 | It expands bored concrete pile stake pipe and pile driver to add elongated immersed tube rammer |
| CN205934910U (en) * | 2016-08-08 | 2017-02-08 | 福建永强岩土股份有限公司 | End board |
| JP2018197436A (en) * | 2017-05-23 | 2018-12-13 | 旭化成建材株式会社 | Steel pipe joint device |
| CN107882023A (en) * | 2017-09-14 | 2018-04-06 | 江苏麦廊新材料科技有限公司 | Resistance to plucking bending resistance quick union and concrete precast pile |
| CN208219657U (en) * | 2018-05-21 | 2018-12-11 | 山东威建岩土科技有限公司 | A kind of closed type plug-in type slip casting foundation pile |
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