CN102296602B - Dual-layer casing connecting section of overlong PCC (cast-in-place concrete large-diameter pipe) pile mould and dip mould connecting method - Google Patents
Dual-layer casing connecting section of overlong PCC (cast-in-place concrete large-diameter pipe) pile mould and dip mould connecting method Download PDFInfo
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- CN102296602B CN102296602B CN 201110152070 CN201110152070A CN102296602B CN 102296602 B CN102296602 B CN 102296602B CN 201110152070 CN201110152070 CN 201110152070 CN 201110152070 A CN201110152070 A CN 201110152070A CN 102296602 B CN102296602 B CN 102296602B
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Abstract
The invention discloses a dual-layer casing connecting section of an overlong PCC (cast-in-place concrete large-diameter pipe) pile mould and a dip mould connecting method. The dual-layer casing connecting section comprises at least two detachable connecting sections, wherein each connecting section comprises inner pipes and outer pipes, and the lengths of the inner pipes is more than those of the outer pipes. The dual-layer casing connecting section is characterized in that bolts are respectively fixed on the two mutually-connected inner pipes, one inner pipe connecting plate passes through the bolts to be connected with the two inner pipes; bolts are respectively fixed on the two mutually-connected outer pipes, one outer pipe connecting plate passes through the bolts to be connected with the two outer pipes; sealing rings are arranged on the ends of the inner pipes and the outer pipes; and an adaptive centering structure is arranged on the connecting end of the two mutually-connected inner pipes. The invention overcomes the limit of height of a construction tool and the problem of poor clearance of a pile driver when obstacles exist in the construction, and has the advantages of simpleness in sealing and dismantling the pile mould, convenience for alignment, simple and feasible technology, convenience for operation, strong practical applicability and the like.
Description
Technical field
The present invention relates to a kind of pile foundation construction facility using method, particularly a kind of overlong PCC stake stake mould bilayer sleeve linkage section and heavy mould method of attachment.
Background technology
The cast-in-situ concrete large-diameter tubular pile is (referred to as the PCC stake; patent No. ZL02112538.4 and ZL01273182.X) adopt mode of vibration with steel internal and external double-layer cavity structure under the flap valve shoe protection of closure; sink to the Foundation Design degree of depth; evenly inject concrete by the concrete current divider in this structural cavities; then this cavity structure is transferred in vibration; the flap valve shoe separates when this cavity structure is transferred to automatically; concrete injects in the cannelure that forms after cavity structure is transferred to, and forms cast in place concrete thin tunnel pile.The PCC stake obtains larger bearing capacity with less concrete amount, is therefore the superior stake type of a kind of economical rationality, cost performance, and this technology has been successfully applied in the large tracts of land treatment of soft foundation engineerings such as speedway, high-speed railway.
During engineering is used, PCC pile driving construction facility height is generally 28 ~ 30m, therefore the length of single stake mould is generally less than 25m, in the situations such as the superstructure load is large, soft layer is comparatively deep, sedimentation and deformation is strict, the shorter long needs that often can not satisfy design of stake, therefore need to increase stake long, to reach the purpose that increases bearing capacity of pile foundation and reduce pile foundation settlement.In addition, when there is obstruction (as power line, bridge etc.) top, PCC pile driving construction place, the headroom of PCC pile driving construction facility is inadequate, therefore wear obstruction below needing to reduce the construction equipment height, the length of single stake this moment mould reduces greatly, only has many piles of employing mould to connect and just can reach designing pile length.Because inside and outside double-layer sleeve structure is adopted in the PCC stake, inner tube is blocked by outer tube, can not directly connect, and the key technology that therefore solves above-mentioned overlong PCC pile construction problem is a connection of mould inner and outer pipe.
Before the present invention, the Chinese patent (patent No.: ZL200910183526.7) disclose a kind of PCC stake stake mould and overlong PCC pile construction method, in inner and outer tubes, strengthening segment has been set, stake mould inner and outer pipes is with bolts.Although the method has solved the connectivity problem of PCC stake stake mould, but still there is following defective: directly adopt punching block to connect between (1) inner and outer tubes, linkage section and stake are not taked seal approach between mould, so underground water easily infiltrates tube chamber during pile sinking, affects pile quality.Be provided with strengthening segment when (2) connecting, the strengthening segment casing wall thickness is generally its 3～5 times greater than the other parts of the non-strengthening segment of this section, and when the increase of wall thickness makes immersed tube, the disturbed soil scope increases, the stake bore dia of formation is increased, thereby increased certain concrete amount.(3) be provided with a plurality of bolts, bolt is not fixed on pile pipe, and each use all will be dismantled, and it is remarkable therefore to operate, and needs the more time just can complete and connects and remove.(4) bolt hole is too many, is difficult for during construction guaranteeing that each screw aligns.
Summary of the invention
The object of the invention is to overcome that existing method exists does not have that sealing, wall thickness increase, dismounting is complicated, be difficult for the defective of alignment, a kind of overlong PCC stake stake mould bilayer sleeve linkage section and heavy mould method of attachment are provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of overlong PCC stake stake mould bilayer sleeve linkage section, comprise at least two detachable linkage sections, described linkage section comprises inner and outer tubes, the length of described inner tube is greater than outer length of tube, it is characterized in that: be fixed with respectively bolt on interconnective two inner tubes, an inner tube junction plate passes described bolt and is connected with two inner tubes; Also be fixed with respectively bolt on interconnective two outer tubes, an outer tube junction plate passes described bolt and is connected with two outer tubes; Be provided with sealing ring in described inner and outer tubes ends; Be provided with adaptive centering structure on described two interconnective inner tube links.
Described centering structure is positioning convex and detent, and wherein positioning convex is arranged on an inner tube, and detent is arranged on another inner tube.
The method of attachment of a kind of overlong PCC stake of the present invention stake mould bilayer sleeve linkage section adopts following technical step to realize:
(1) with upper and lower two sections double braid covering pile tube mode structures in the alignment of stake position, in the stake mould, length of tube is longer than outer tube, the inner and outer pipes end is all with set bolt, and sealing ring is set;
(2) epimere stake mould is sunk, until the inner tube of upper and lower two sections stake moulds fits tightly together, the alignment that the inner tube of upper and lower two sections stake moulds arranges aligns;
(3) will be arranged on the inner tube junction plate of bolt hole inner tube and connect the end, make the inner tube end with set bolt pass the bolt hole of inner tube junction plate, and the nut of screwing on is with fixing inner tube junction plate;
(4) will be arranged on the outer tube junction plate of bolt hole outer tube and connect the end, make the outer tube end with set bolt pass the bolt hole of outer tube junction plate, and the nut of screwing on is with fixing outer tube junction plate.
The demounting procedure of a kind of overlong PCC stake stake mould bilayer sleeve linkage section of the present invention is just in time opposite with installation steps, comprises the nut that first unclamps on the outer tube junction plate, removes the outer tube junction plate, unclamps inner tube junction plate nut again, removes the inner tube junction plate, then separates upper and lower two sections technical steps such as stake mould.
The height of described inner tube junction plate fits tightly the difference in height of latter two outer tube end face less than the inner tube of upper and lower two sections stake moulds; And the height of outer tube junction plate fits tightly the difference in height of latter two outer tube end face greater than the inner tube of upper and lower two sections stake moulds.
The inside and outside sleeve pipe of described stake mould adopts cross binding to be fixedly connected with.
Described inner tube end arranges the centering structure, and epimere stake mould inner tube alignment is a groove, and hypomere stake mould inner tube alignment is a projection, and both just in time fit together.
Described inner tube junction plate is 3 or 3 blocks of above arc-shaped curved surface plates, forms columnar structuredly after the amalgamation of polylith arc-shaped curved surface plate, and columnar structured internal diameter equals the external diameter of inner tube.Inner tube junction plate thickness equals the inner tube wall thickness, at upper/lower terminal, bolt connecting hole is set, and the connecting hole total quantity equals the total quantity of inner tube end set bolt.After the inner tube junction plate fitted to the inner tube end, its bolt hole position was just in time corresponding with set bolt.
The set bolt end of described inner and outer pipe can facilitate nut directly to be screwed into all with screw.
Described outer tube junction plate is 3 or 3 blocks of above arc-shaped curved surface plates, forms columnar structuredly after the amalgamation of polylith arc-shaped curved surface plate, and columnar structured internal diameter equals the external diameter of outer tube.Outer tube junction plate thickness equals the outer tube wall thickness, at upper/lower terminal, bolt connecting hole is set, and the connecting hole total quantity equals the total quantity of outer tube end set bolt.After the outer tube junction plate fitted to the inner tube end, its bolt hole position was just in time corresponding with set bolt.
Technique effect of the present invention is, has overcome the restriction of construction equipment height, connects by each section stake mould, makes stake that the PCC stake can be constructed large the increasing that grow up, thereby realizes the overlong PCC pile driving construction.Because stake mould interlude is detachable, therefore can adapt to the long needs of piles with different, and convenient transportation.The present invention has also solved the inadequate problem of stake machine headroom when running into obstruction in construction, adopts shorter stake machine to connect by multistage stake mould the long PCC stake of can constructing, and reaches designing requirement.Outer tube Length Ratio inner tube of the present invention is short, has reserved the space that operates for the installation of inner tube junction plate, is skillfully constructed.The present invention all arranges sealing ring in the end of inner and outer pipe, and when the setting of sealing ring can prevent from driving piles, underground water enters tube chamber, has guaranteed pile quality; Adopt the wall thickness of outer tube linkage section to equate with stake mould outer tube, do not need to arrange the strengthening segment of 3 ~ 5 times of wall thickness, therefore reduced soil disturbance scope and drilling diameter, thereby reduced the concrete fullness coefficient, reduce unnecessary concrete waste; Connecting bolt is fixed on a mould inner and outer pipe, does not need dismounting when therefore connecting, and makes more convenient to operate; Be provided with alignment in stake mould inner tube, convenient upper and lower two sections stake moulds alignment, thus guarantee upper and lower bolt alignment, in order to junction plate is installed.The technology of the present invention simple possible, easy to operate efficiently solves the connectivity problem of super long pile stake mould, and is practical.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Protection scope of the present invention is not limited with the specific embodiment, but is limited by claim.
Description of drawings
Fig. 1 overlong PCC stake of the present invention stake mould bilayer sleeve linkage section Connection Step schematic diagram, wherein (a) is that the stake mould is in place, (b) be the inner tube alignment, (c) for first inner tube junction plate is installed, (d) for all the other inner tube junction plates are installed, (e) for first outer tube junction plate is installed, (f) for all the other outer tube junction plates are installed;
Fig. 2 inner tube connection diagram of the present invention;
Fig. 3 outer tube connection diagram of the present invention;
The A-A position sectional view of Fig. 4 Fig. 2 of the present invention;
The B-B position sectional view of Fig. 5 Fig. 3 of the present invention;
Fig. 6 outer tube junction plate of the present invention schematic three dimensional views.
In figure: 1 is inner tube, and 2 is outer tube, and 3 is cross binding, and 4 is alignment, and 5 is bolt hole, and 6 is connecting bolt, and 7 is sealing ring, and 8 is the inner tube junction plate, and 9 is nut, and 10 is the outer tube junction plate.
The specific embodiment
As shown in Figure 1, the method of attachment of a kind of overlong PCC stake of the present invention stake mould bilayer sleeve linkage section, after in short outside long in adopting, first, outer connected mode has realized a mould connection, comprise technical step: (a) the stake mould is in place, (b) inner tube (1) alignment (c) is installed first inner tube junction plate 8, (d) all the other inner tube junction plates 8 is installed, (e) first outer tube junction plate 10 is installed, (f) all the other outer tube junction plates 10 is installed.
As Fig. 2 ~ shown in Figure 6, stake mould bilayer sleeve linkage section is the double-deck steel sleeve pipe with one heart that comprises inner tube 1 and outer tube 2, cross binding 3 is set with the spud pile mould between inner tube 1 and outer tube 2.Cross binding 3 can be short steel pipes, evenly arranges more than three or three at stake mould sustained height section.Inner tube 1 is than the long 20 ~ 30cm of outer tube 2.Be provided with connecting bolt 6 in inner tube 1 and outer tube 2 ends, connecting bolt 6 is fixed on inner tube 1 and outer tube 2, and connecting bolt 6 ends are threaded, being connected of convenient and nut 9.Be provided with equally sealing ring 7 in inner tube 1 and outer tube 2 ends, sealing ring 7 is flexible elastic material, can adopt the discarded elastomeric materials such as doughnut to make, and sealing ring 7 is compressed after junction plate is installed, and plays the effect of waterproof.End in stake mould inner tube 1 also is provided with alignment 4, guarantees aligned in position when a mould is fitted, and facilitates the installation of inner tube junction plate 8 and outer tube junction plate 10.Connecting bolt 6 in every inner tube 1 or outer tube 2 settings is evenly distributed on sleeve outer wall, and this embodiment quantity is nine, also can arrange as required more.Outer tube junction plate 10(Fig. 6) formed by three plate with curved surface, also can be arranged to four even more.Three outer tube junction plates 10 are closed together rear formation cylindrical shape, and barrel bore just in time equates with the external diameter of outer tube 2.Every outer tube junction plate 10 upper/lower terminals have three threaded hole 5, and one of them spiro keyhole position is on the center line of plate, and hole shape is circular; Two other is positioned at both sides of the edge, and hole shape is flat ellipse, and oval long axis direction is positioned at horizontal direction, facilitates the connecting bolt 6 on both sides to insert.Why slotted eye is set, and is because the direction that the relative outer tube junction plate of the connecting bolt 6 of both sides is installed is also not parallel, and certain angle of cut is arranged, and only has flat hole guarantee is set installs smoothly, and this is also ingenious part of the present invention.The method to set up of inner tube junction plate 8 and outer tube junction plate 10 are similar.
When the complete needs of pile sinking of the present invention are removed the stake mould, demounting procedure is just in time opposite with installation steps, comprises the nut 9 that first unclamps on outer tube junction plate 10, removes outer tube junction plate 10, unclamps nut 9 on inner tube junction plate 8 again, removes inner tube junction plate 8, then separates upper and lower two sections stake moulds.
Protection scope of the present invention is not limited only to the description of present embodiment.
Claims (6)
1. overlong PCC stake stake mould bilayer sleeve linkage section, comprise at least two detachable linkage sections, described linkage section comprises inner and outer tubes, the length of described inner tube is greater than outer length of tube, it is characterized in that: be fixed with respectively bolt on interconnective two inner tubes, an inner tube junction plate passes described bolt and is connected with two inner tubes; Also be fixed with respectively bolt on interconnective two outer tubes, an outer tube junction plate passes described bolt and is connected with two outer tubes; Be provided with sealing ring in described inner and outer tubes ends; Be provided with adaptive centering structure on described two interconnective inner tube links.
2. overlong PCC stake stake mould bilayer sleeve linkage section according to claim 1, it is characterized in that: described centering structure is positioning convex and detent, and wherein positioning convex is arranged on an inner tube, and detent is arranged on another inner tube.
3. overlong PCC stake stake mould bilayer sleeve linkage section according to claim 1 is characterized in that: described inner and outer tubes adopt cross binding to be fixedly connected with.
4. overlong PCC stake stake mould bilayer sleeve linkage section according to claim 1, it is characterized in that: described outer tube junction plate is 3 blocks of above arc-shaped curved surface plates, form columnar structuredly after the amalgamation of polylith arc-shaped curved surface plate, columnar structured internal diameter equals the external diameter of outer tube.
5. overlong PCC stake stake mould bilayer sleeve linkage section according to claim 1, it is characterized in that: described inner tube junction plate is 3 blocks of above arc-shaped curved surface plates, form columnar structuredly after the amalgamation of polylith arc-shaped curved surface plate, columnar structured internal diameter equals the external diameter of inner tube.
6. the heavy mould method of attachment of an overlong PCC stake stake mould bilayer sleeve linkage section as claimed in claim 1 is characterized in that: adopt following technical step to realize:
(1) with upper and lower two sections double braid covering pile tube mode structures in the alignment of stake position, in the stake mould, length of tube is longer than outer tube, the inner and outer pipes end is all with set bolt, and sealing ring is set;
(2) epimere stake mould is sunk, until the inner tube of upper and lower two sections stake moulds fits tightly together, the centering structure alignment that the inner tube of upper and lower two sections stake moulds arranges;
(3) will be arranged on the inner tube junction plate of bolt hole inner tube and connect the end, make the inner tube end with set bolt pass the bolt hole of inner tube junction plate, and the nut of screwing on is with fixing inner tube junction plate;
(4) will be arranged on the outer tube junction plate of bolt hole outer tube and connect the end, make the outer tube end with set bolt pass the bolt hole of outer tube junction plate, and the nut of screwing on is with fixing outer tube junction plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110152070 CN102296602B (en) | 2011-06-08 | 2011-06-08 | Dual-layer casing connecting section of overlong PCC (cast-in-place concrete large-diameter pipe) pile mould and dip mould connecting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110152070 CN102296602B (en) | 2011-06-08 | 2011-06-08 | Dual-layer casing connecting section of overlong PCC (cast-in-place concrete large-diameter pipe) pile mould and dip mould connecting method |
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| CN102296602A CN102296602A (en) | 2011-12-28 |
| CN102296602B true CN102296602B (en) | 2013-06-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105544530B (en) * | 2016-02-03 | 2018-09-14 | 福建建华建材有限公司 | A kind of connection structure and production method of pile pile prefabricated components |
| CN107270111A (en) * | 2017-06-13 | 2017-10-20 | 清华大学 | A kind of concentric double pipe structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3731270C1 (en) * | 1987-09-17 | 1989-01-19 | Hoesch Ag | Pipe joint |
| CN201137114Y (en) * | 2007-11-13 | 2008-10-22 | 纪伟宁 | Novel pile-forming sinking pipe |
| CN101691753A (en) * | 2009-09-14 | 2010-04-07 | 河海大学 | Pile mould for PCC pile and construction method for overlong PCC pile |
| CN101736739A (en) * | 2009-12-17 | 2010-06-16 | 李征 | Multisection double-protection casing pile pore-forming device and pile forming method thereof |
| CN101787699A (en) * | 2009-11-07 | 2010-07-28 | 广东三和管桩有限公司 | Bolt fastening structure of pipe die |
-
2011
- 2011-06-08 CN CN 201110152070 patent/CN102296602B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3731270C1 (en) * | 1987-09-17 | 1989-01-19 | Hoesch Ag | Pipe joint |
| CN201137114Y (en) * | 2007-11-13 | 2008-10-22 | 纪伟宁 | Novel pile-forming sinking pipe |
| CN101691753A (en) * | 2009-09-14 | 2010-04-07 | 河海大学 | Pile mould for PCC pile and construction method for overlong PCC pile |
| CN101787699A (en) * | 2009-11-07 | 2010-07-28 | 广东三和管桩有限公司 | Bolt fastening structure of pipe die |
| CN101736739A (en) * | 2009-12-17 | 2010-06-16 | 李征 | Multisection double-protection casing pile pore-forming device and pile forming method thereof |
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