CN203939024U - Pile for prestressed pipe - Google Patents

Pile for prestressed pipe Download PDF

Info

Publication number
CN203939024U
CN203939024U CN201420301208.2U CN201420301208U CN203939024U CN 203939024 U CN203939024 U CN 203939024U CN 201420301208 U CN201420301208 U CN 201420301208U CN 203939024 U CN203939024 U CN 203939024U
Authority
CN
China
Prior art keywords
pile
pipe
prestressed pipe
prestressed
joint
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.)
Expired - Fee Related
Application number
CN201420301208.2U
Other languages
Chinese (zh)
Inventor
尚增弟
宋明智
于芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henzhen Municipal Engineering Corp
SHENZHEN SUNHUI MECHANICAL Co Ltd
Shenzhen Gongkan Geotechnical Group Co Ltd
Shenzhen Municipal Engineering Corp
Original Assignee
Henzhen Municipal Engineering Corp
SHENZHEN SUNHUI MECHANICAL Co Ltd
Shenzhen Gongkan Geotechnical Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henzhen Municipal Engineering Corp, SHENZHEN SUNHUI MECHANICAL Co Ltd, Shenzhen Gongkan Geotechnical Group Co Ltd filed Critical Henzhen Municipal Engineering Corp
Priority to CN201420301208.2U priority Critical patent/CN203939024U/en
Application granted granted Critical
Publication of CN203939024U publication Critical patent/CN203939024U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to the technical field of rig, pile for prestressed pipe is disclosed, the pile tube pile top that pile for prestressed pipe comprises pile body, is connected to the pipe pile joint of pile body lower end and is connected to pipe pile joint lower end, the lower end of described pipe pile joint is connected with a plurality of guide strips, and a plurality of described guide strips are around the adjacent layout of described pile tube pile top periphery.Compared with prior art, the pile for prestressed pipe that the utility model provides is executed, the lower end of its pipe pile joint, a plurality of guide strips are set, the plurality of guide strip is looped around the periphery of pile tube pile top, like this, in the process of pile for prestressed pipe pile, guide strip can play good guide effect, avoid occurring hole deviation phenomenon, and the stress can balance pile for prestressed pipe bearing during as soil end, offset part kinetic energy, effectively reduce broken pile probability, increase formation of pile, the penetration capacity of pile for prestressed pipe to soil layer, pile for prestressed pipe is comparatively easy to through Backfilled Stone Layer, greatly improve efficiency of construction.

Description

Pile for prestressed pipe
Technical field
The utility model relates to the technical field of rig, relates in particular to pile for prestressed pipe.
Background technology
Needs along with coastal cities construction development, can carry out large-scale marine reclamation land engineering, large quantities of superelevation, super dark building also can be rised sheer from level ground in reclamation area, in these territories, reclamation area, the use of the super ultradeep prestressed pile tube of major diameter (diameter is more than 800mm, and hole depth surpasses 50m) is also more and more extensive.Pile for prestressed pipe has that pile quality is good, bearing capacity of single pile is high, speed of application is fast, the duration is short, low cost and other advantages, and in pore forming process without mud off, avoid producing a large amount of mud waste residues, realize green construction.
In prior art, the construction method of pile for prestressed pipe mainly contains hammering method, static pressure method etc., as shown in Figure 1, is the principle schematic of pile for prestressed pipe 1 construction method.During pile for prestressed pipe 1 pile, by modes such as hammering, static pressure, provide external force F, this external force F acts on the upper end of pile for prestressed pipe 1 pile body, in the lower end of pile for prestressed pipe 1 pile body, be provided with cross-shaped steel pile top 11, under the effect of external force F, this steel pile tip 11 is clamp-oned in soil layer gradually, sequentially pass miscellaneous fill layer 6, Backfilled Stone Layer 3, eluvium 4, and finally drop on basement rock 5, complete the effect of pile for prestressed pipe 2 piles.
In existing reclamation area; extensive distribution due to deep Backfilled Stone Layer 3; and the impact of the lumpiness that is subject to the unordered landfill of Backfilled Stone Layer 3 and rocking (lumpiness particle diameter 300mm~2000mm) not of uniform size; during the major diameter of often constructing in reclamation area (φ 800mm) pile for prestressed pipe 1; often can run into pile for prestressed pipe 1 and be difficult to the difficulty through deep Backfilled Stone Layer 3; therefore; the lower end of pile for prestressed pipe 1 is difficult to reach on basement rock 5; cause pile failure; or need to consume construction for a long time; could realize pile, efficiency of construction is low, is greatly difficult to postpone construction period.
Utility model content
The purpose of this utility model is to provide pile for prestressed pipe, is intended to solve in pre-stress construction of the prior art, exists pile for prestressed pipe to be difficult to cause through Backfilled Stone Layer the problem that pile is failed, efficiency of construction is low.
The utility model is to realize like this, pile for prestressed pipe, the pile tube pile top that pile for prestressed pipe comprises pile body, is connected to the pipe pile joint of pile body lower end and is connected to pipe pile joint lower end, the lower end of described pipe pile joint is connected with a plurality of guide strips, and a plurality of described guide strips are around the adjacent layout of described pile tube pile top periphery.
Further, the lower end of described guide strip is most advanced and sophisticated.
Further, the outside of described guide strip lower end is skewed, forms described tip in lower end.
Further, the both sides of described guide strip lower end are respectively skewed, and in lower end, intersect the described tip of formation.
Further, the inner side of described guide strip is connected in the periphery of described pile tube pile top.
Further, in the sidewall of described pipe pile joint, be provided with two-way spilled water hole.
Further, in the sidewall of described pile body, be provided with two-way spilled water hole.
Compared with prior art, the pile for prestressed pipe that the utility model provides is executed, the lower end of its pipe pile joint, a plurality of guide strips are set, the plurality of guide strip is looped around the periphery of pile tube pile top, like this, in the process of pile for prestressed pipe pile, guide strip can play good guide effect, avoid occurring hole deviation phenomenon, and the stress can balance pile for prestressed pipe bearing during as soil end, offset part kinetic energy, effectively reduce broken pile probability, increase formation of pile, the penetration capacity of pile for prestressed pipe to soil layer, pile for prestressed pipe is comparatively easy to through Backfilled Stone Layer, greatly improve efficiency of construction.
Accompanying drawing explanation
Fig. 1 is the principle schematic of prestressing pipe pile construction process of the prior art;
Fig. 2 is the spud in structural representation of main borehole of the down-hole hammer that provides of the utility model embodiment and full casing;
The structural representation in back-up sand hole is provided in the reclamation area that provides of the utility model embodiment Fig. 3;
Fig. 4 is provide three secondary borings of the utility model embodiment and the schematic top plan view of main borehole;
Fig. 5 is the structural representation of pile for prestressed pipe pile in back-up sand hole of providing of the utility model embodiment;
Fig. 6 is the transverse cross sectional schematic diagram of the pile for prestressed pipe that provides of the utility model embodiment;
Fig. 7 is the cut-away illustration of the pipe pile joint that provides of the utility model embodiment;
Fig. 8 is that the pile body that provides of the utility model embodiment and the master of pipe pile joint look schematic diagram.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
Shown in Fig. 2~8, the preferred embodiment providing for the utility model.
The present embodiment, pile for prestressed pipe 2 comprises the pile body 27 of long tubular, the pile tube pile top 26 that is connected to the pipe pile joint 28 of pile body 27 lower ends and is connected to pipe pile joint 28 lower ends, in the lower end of this pipe pile joint 28, be connected with a plurality of guide strips 25, the plurality of guide strip 25 extends along the length direction of pile body 27, and is around the adjacent layout of pile tube pile top 26 periphery.
In pipe pile joint 28 lower ends, by a plurality of guide strips 25 are set, in the process of the pile of pile for prestressed pipe 2, guide strip 25 can play good guide effect, avoids occurring hole deviation phenomenon, and can balance pile for prestressed pipe 2 as the stress that bears during soil end, offset part kinetic energy, effectively reduce broken pile probability, increase formation of pile, the penetration capacity of 2 pairs of soil layers of pile for prestressed pipe.
Particularly, the inner side of guide strip 25 is connected in the periphery of pile tube pile top 26, like this, strengthens its steadiness, makes its guide effect better, and has better penetration capacity.
In the present embodiment, the lower end of guide strip 25 is tip 29, and like this, its guiding and penetration capacity are stronger.
Particularly, outside, the lower end of guide strip 25 is skewed, and forms above-mentioned tip 29 in lower end, and certainly, as other embodiment, the both sides of guide strip 25 lower ends are respectively skewed, and intersects the above-mentioned tip 29 of formation.
In the present embodiment, the sidewall of pipe pile joint 28 is provided with two-way spilled water hole 281, like this, in the process of pile, utilize this two-way spilled water hole 281, outside the water in pile for prestressed pipe 2 can being excreted, thereby effectively eliminate the impact of buoyancy force of underground water, and the airtight air that can get rid of pile for prestressed pipe 2 inside, prevents the phenomenon of booster.
In addition, be also provided with above-mentioned two-way spilled water hole 281 on the sidewall of pile body 27, it can play above-mentioned technique effect.
While utilizing above-mentioned pile for prestressed pipe 2 to carry out pile in reclamation area, the soil layer of reclamation area, from top to bottom, respectively on miscellaneous fill layer 6, Backfilled Stone Layer 3, eluvium 4 and basement rock 5, adopt pile for prestressed pipe 2 construction methods for the lower end of pile for prestressed pipe 2 is plugged in to basement rock 5, realize the effect of pile.
Pile for prestressed pipe 2 construction methods, its concrete operation step is as follows:
1), in reclamation area, treat the position of pile, adopt down-hole hammer 22 to offer main borehole in reclamation area, and utilizing full casing 21 to follow down-hole hammer 22 creeps into, namely full casing 21 is also plugged in this main borehole, and along with constantly moving down of down-hole hammer 22, this full casing 21 is constantly plugging down, until down-hole hammer 22 is through Backfilled Stone Layer 3, simultaneously full casing 21 also passes through in Backfilled Stone Layer 3, and main borehole passes through Backfilled Stone Layer 3;
2), down-hole hammer 22 is transferred to, and at the complete interior filling sand of casing 21, after the upper surface that is filled to reclamation area, then extract full casing 21 until sand, thereby main borehole forms back-up sand hole 23, Backfilled Stone Layer 3 is passed through in this back-up sand hole 23;
3), utilize hammering method or static pressure method etc. in pile for prestressed pipe 2 upper ends, to apply external force, make pile for prestressed pipe 2 through back-up sand hole 23, and lower end is embedded in the basement rock 5 of Backfilled Stone Layer 3 belows, complete whole pile for prestressed pipe 2 piles operations.
In the above-mentioned pile for prestressed pipe providing 2 construction methods, it has the following advantages:
1), speed of fulfiling hole is fast
On reclamation area, treat the position of pile, first with Major diameter downhole hammer 22 and coordinate full casing 21 to enter perforate with pipe bit, main borehole passes through Backfilled Stone Layer 3; Rise and pull out before full casing 21, with sand backfill main borehole, Wei Chu top, each hole Backfilled Stone Layer 3 soil bodys are replaced into sand.Subsequently, recycling hammer stake machine etc. is squeezed into pile tube continuously, can make pile tube penetrate easily Backfilled Stone Layer 3, and efficiency of construction significantly promotes.
2), construction cost is low, the duration is short
Owing to having adopted down-hole hammer 22 to draw hole technology, speed of application is fast, and unit overall efficiency is high, and mechanical execution cost is relatively low.Draw hole use mud off technique with adopting impact, reduced the use amount of mud and the outer freight volume of useless slurry waste residue, reduced construction cost, promoted environmental benefit.
3), clean, the field control in place is simplified
Its main manifestations is in the following areas: mud circulation is not used in construction, site operation environment is improved greatly, do not have the outward transport of useless slurry waste residue and difficult treatment, greatly reduced the daily management work such as waste mud storage, outward transport, management link is simplified greatly.
In step 3) in, in back-up sand hole 23, squeeze into pile for prestressed pipe 2, for the whole Backfilled Stone Layers 3 in the back-up sand hole 23 that guarantees to form have been replaced by sand, in the present embodiment, in step 1) before, centered by the axis of position for the treatment of pile, adopt down-hole hammer 22 sequentially, in reclamation area, to offer respectively three secondary borings 24, and utilizing full casing 21 to follow down-hole hammer 22 creeps into, namely full casing 21 is also plugged in this pair boring 24, and along with constantly moving down of down-hole hammer 22, this full casing 21 is constantly plugging down, until down-hole hammer 22 is through Backfilled Stone Layer 3, simultaneously full casing 21 also passes through in Backfilled Stone Layer 3, Backfilled Stone Layer 3 is passed through in i.e. secondary boring 24, down-hole hammer 22 is transferred to, and at the complete interior filling sand of casing 21, after the upper surface that is filled to reclamation area, then extracted full casing 21 until sand, thereby secondary boring 24 forms back-up sand hole 23, Backfilled Stone Layer 3 is passed through in this back-up sand hole 23.
Offer in above-mentioned three secondary boring 24 are respectively to treat centered by the axis of pile position, be product word shape intersection and intersect layout, namely around shape, intersect to intersect and arrange, and three secondary borings 24 all treat that respectively the axis of pile position is included, like this, can fully remove and treat pile position axis Backfilled Stone Layer 3 around, namely Backfilled Stone Layer 3 be replaced by sand completely.
Certainly, as other embodiment, above-mentioned in step 1) before, the pair boring 24 of offering can be also more than three, as long as these three above pair borings 24 are to intersect to intersect around shape, arrange, and the axis for the treatment of pile position is included and can.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (7)

1. pile for prestressed pipe, it is characterized in that, the pile tube pile top that pile for prestressed pipe comprises pile body, is connected to the pipe pile joint of pile body lower end and is connected to pipe pile joint lower end, the lower end of described pipe pile joint is connected with a plurality of guide strips, and a plurality of described guide strips are around the adjacent layout of described pile tube pile top periphery.
2. pile for prestressed pipe as claimed in claim 1, is characterized in that, it is most advanced and sophisticated that the lower end of described guide strip is.
3. pile for prestressed pipe as claimed in claim 2, is characterized in that, the outside of described guide strip lower end is skewed, forms described tip in lower end.
4. pile for prestressed pipe as claimed in claim 2, is characterized in that, the both sides of described guide strip lower end are respectively skewed, and in lower end, intersects the described tip of formation.
5. the pile for prestressed pipe as described in claim 1 to 4 any one, is characterized in that, the inner side of described guide strip is connected in the periphery of described pile tube pile top.
6. the pile for prestressed pipe as described in claim 1 to 4 any one, is characterized in that, is provided with two-way spilled water hole in the sidewall of described pipe pile joint.
7. the pile for prestressed pipe as described in claim 1 to 4 any one, is characterized in that, is provided with two-way spilled water hole in the sidewall of described pile body.
CN201420301208.2U 2014-06-06 2014-06-06 Pile for prestressed pipe Expired - Fee Related CN203939024U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420301208.2U CN203939024U (en) 2014-06-06 2014-06-06 Pile for prestressed pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420301208.2U CN203939024U (en) 2014-06-06 2014-06-06 Pile for prestressed pipe

Publications (1)

Publication Number Publication Date
CN203939024U true CN203939024U (en) 2014-11-12

Family

ID=51858351

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420301208.2U Expired - Fee Related CN203939024U (en) 2014-06-06 2014-06-06 Pile for prestressed pipe

Country Status (1)

Country Link
CN (1) CN203939024U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104164873A (en) * 2014-06-06 2014-11-26 深圳市工勘岩土集团有限公司 Prestressed pipe pile and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104164873A (en) * 2014-06-06 2014-11-26 深圳市工勘岩土集团有限公司 Prestressed pipe pile and construction method thereof
CN104164873B (en) * 2014-06-06 2017-01-25 深圳市工勘岩土集团有限公司 Prestressed pipe pile and construction method thereof

Similar Documents

Publication Publication Date Title
CN103321244B (en) Sand foundation existing building sets up the construction method of basement
CN103603342B (en) Major diameter assembled casing super-long filling pile construction method
CN104164873B (en) Prestressed pipe pile and construction method thereof
CN203625893U (en) Rock-embedded cast-in-place pile
CN102691296A (en) Pipe pile foundation for static-pressure grouting on pile side and rotary jet grouting at pile bottom and construction method thereof
CN203939024U (en) Pile for prestressed pipe
CN204252120U (en) The construction equipment of concrete pile
CN212716407U (en) Karst area pile foundation drilling equipment
CN203654272U (en) Lateral friction boring filling pile for isolation pile
CN204326061U (en) A kind of pile tube be drawn out easily
CN106087978A (en) Pile for prestressed pipe
CN205399438U (en) Karst area embedded rock pile pore -forming bores concrete dado structure again
CN204225100U (en) The construction equipment of concrete pile
CN202187735U (en) Bored pile tubular drill for fishing residue
CN101985836B (en) Processing method of pile-wall type deep base pit supporting structure in case of encountering large boulder stone
CN104762970A (en) Auxiliary tube drawing device for deep hole karst grouting and construction method thereof
CN104074183A (en) Drilling and concrete injected root composite pile implanting pile structure and construction method
CN203284789U (en) Pile foundation construction system for common karst cave
CN108049804B (en) Scall no-dig technique changes in situ fills out Auger drilling method
CN104612164A (en) Reinforced composite envelope structure construction method
CN205713982U (en) A kind of pile foundation construction drilling equipment being applicable to karst area
CN205532633U (en) Tunnel bottom plate reinforcerment system
CN103758127B (en) A kind of it is applicable to the pipe pile construction method through hard interbedded layer
CN203866849U (en) Seamless junction underground diaphragm wall guide wall structure on complex stratum
CN205100226U (en) Underground continuous wall goes into rock grooving construction equipment

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141112

Termination date: 20200606

CF01 Termination of patent right due to non-payment of annual fee