CN102900074B - Prefabricated tubular pile with end screw thread with X-shaped variable section and construction method thereof - Google Patents
Prefabricated tubular pile with end screw thread with X-shaped variable section and construction method thereof Download PDFInfo
- Publication number
- CN102900074B CN102900074B CN 201210411486 CN201210411486A CN102900074B CN 102900074 B CN102900074 B CN 102900074B CN 201210411486 CN201210411486 CN 201210411486 CN 201210411486 A CN201210411486 A CN 201210411486A CN 102900074 B CN102900074 B CN 102900074B
- Authority
- CN
- China
- Prior art keywords
- pile
- section
- segment
- tube coupling
- segment tube
- 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.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a prefabricated tubular pile with an end screw thread with an X-shaped variable section and a construction method thereof. The prefabricated tubular pile comprises two tubular joints, wherein the first tubular joint is provided with a pile tip, a large section segment, a small section segment and a top screw thread segment, the surface of the large section segment and the small section segment is provided with screw threads, and the sections are both in an X shape. The second tubular joint is in an inverse cone frustum shape, a through hole is formed in the center of the cone frustum, the lower segment of the through hole is provided with an internal screw thread segment, ruler lines are marked on the surface of the cone frustum in a smooth manner, and the cross section of the cone frustum is in a circular ring shape. The top screw thread segment of the first tubular joint is screwed into the internal screw thread segment of the second tubular joint so that the two tubular joints are connected into a complete tubular pile. The prefabricated tubular pile with the end screw thread with the X-shaped variable section is simple in structure, relatively low in manufacture cost, large in specific surface area and high in pile side positive friction resistance, and the bearing capacity of a single pile is obviously enhanced. The invention also provides a construction method of the tubular pile. According to the construction method, the process is simple, the maneuverability is strong, the construction efficiency is high, and the utilization percent of material strength per unit is high. The prefabricated tubular pile and the construction method are suitable for large pile foundation construction in a soft soil area and have a wide application prospect and a significant economical benefit.
Description
Technical field
The present invention relates to a kind of end thread X-shaped variable cross-section prefabricated tubular pile and job practices thereof, belong to the building pile foundation technical field.
Background technology
Pile foundation is mainly born the upper building load by frictional resistance and the end resistance of stake side.The sedimentation that reasons such as stake week soil is fixed because of self, immersion saturated yielding, place are banketed, ground preloading, pile top load, groundwater table decreasing produce is during greater than pile body settlement, and a stake side will produce negative friction.This frictional resistance has constituted the part of pressure bearing pile load, has reduced the bearing capacity of stake, also may cause bigger sedimentation.
The generation of negative friction has following adverse effect: reduce bearing capacity of pile foundation, make the pile foundation sedimentation increase, reduce the safety stock of pile strength, when serious even can cause a series of engineering accidents such as foundation failure, superstructure thing differential settlement.Therefore, research and develop a kind of economy, effectively cut down the novel pile foundation of negative friction, seem particularly urgent.
Summary of the invention
The technical problem to be solved in the present invention is: provides a kind of and can reduce negative friction simultaneously effectively and improve the positive frictional resistance of stake side, and more economical end thread X-shaped variable cross-section prefabricated tubular pile and job practices thereof.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: a kind of end thread X-shaped variable cross-section prefabricated tubular pile is provided, comprise first segment tube coupling and second pipe joint joint, described first segment tube coupling is provided with stake point, heavy in section section, small bore section and screw top section from top to bottom, heavy in section section and small bore section surface have screw thread, cross section is X-shaped, and screw top section cross section is circular; Second pipe joint joint is the rounding taper type, and there is through hole at the frustum center, and the through hole hypomere is provided with internal thread segment, and the frustum smooth surface is provided with scale line, and the frustum cross section is annular; Screw in the internal thread segment prefabricated tubular pile that connecting into of two tube couplings is complete of second pipe joint joint by the screw top section of first segment tube coupling.
The present invention also provides the job practices of described a kind of end thread X-shaped variable cross-section prefabricated tubular pile, may further comprise the steps:
(1) smooth place and pile driver is in place;
(2) the first segment tube coupling of the pre-prefabricated tubular pile of the described end thread X-shaped variable cross-section of lifting: fasten the wire rope and the rigging that hang a usefulness earlier, then rigging is bundled near the suspension ring of first segment tube coupling upper end, lifting first segment tube coupling starts the machine, make stake center, sharp perpendicular alignmnet stake position, slowly put down after the position is accurate and insert in the soil, buckle well pile cover or pile ring at first segment tube coupling top again, remove rigging;
(3) pipe stabilizing pile: after first segment tube coupling stake point inserts the stake position, fall apart from cold-hammer 1～2 time with less earlier, the first segment tube coupling is buried to keeping the vertically stable degree of depth;
(4) injection first segment tube coupling: with sledgehammer strike first segment tube coupling, generally predetermined injection to top is exposed at the height of the nearly lm in ground;
(5) pile extension: second pipe joint saved winched to first segment tube coupling top, the center that makes its center and first segment tube coupling is up and down behind the complete matching, it is in place to rotate second pipe joint joint with the pipe clamp instrument, makes first segment tube coupling and second pipe joint joint connect into complete prefabricated tubular pile;
(6) injection second pipe joint joint: with sledgehammer strike second pipe joint joint, to all injection is underground;
(7) send pile tube to design elevation: send pile tube by designing requirement, send the center line of pile tube to coincide with pile tube body center line and carry out when consistent, if the pile tube top is uneven, then level up with gunnysack or ground paper, the hole backfill immediately that pile follower stays is closely knit;
(8) inspect for acceptance: check errorless after, mobile pile driver is finished the construction of end thread X-shaped variable cross-section prefabricated tubular pile to new stake position.
End thread X-shaped variable cross-section prefabricated tubular pile of the present invention and job practices thereof compared with prior art have following advantage:
1) because the cross section of the large and small section of the first segment tube coupling of pile tube of the present invention is X-shaped, bigger specific area is arranged, can improve the positive frictional resistance of a side significantly, pile body second pipe joint joint of the present invention is the rounding taper type, can effectively reduce Effect of Negative Frictional Resistance.
2) pile tube of the present invention is because the stake of first segment tube coupling is sharp, all the cross-section segments than heavy in section section is little for the cross section of small bore section, the small bore section and the heavy in section section that are the first segment tube coupling are in a ratio of recessed design, after in the complete injection soil of first segment tube coupling pile body, the recessed space of the small bore section of first segment tube coupling must be by stake native filling of week, can enlarge markedly the bearing capacity of pile tube, and the design of small bore section more helps the first segment tube coupling by in the injection soil.
3) pile tube of the present invention is compared with the prefabricated X-shaped reinforced concrete pile of uniform section, because pile body is variable cross-section, is adopting under the same pipeline sinking pile mode, and it is darker that this pile tube is handled the degree of depth.
4) pile tube of the present invention is compared with the taper expanded bore pile, and the screw thread setting is adopted on the heavy in section section of first segment tube coupling, the surface of small bore section, can improve the positive frictional resistance of a side effectively, adopts the replaceable taper expanded bore pile of this pile tube, and it is simpler to construct.Pile tube of the present invention can be brought into play the advantage of tapered pile at the bottom of the prefabricated expansion, X-shaped stake and half-thread stake simultaneously, and remedies described shape stake deficiency separately.
5) the pipe pile construction method technology of the present invention's proposition is simple, workable, the efficiency of construction height, and can improve the unit materials rate of utilization of strength to a greater degree, and eliminated the influence of negative friction to pile foundation.
6) pile tube of the present invention and job practices thereof can be widely used in the large-scale pile foundation construction of soft clay area, and remarkable in economical benefits has a extensive future.
Description of drawings
Fig. 1 is the structural representation of end thread X-shaped variable cross-section prefabricated tubular pile of the present invention.
Fig. 2 is the structural representation of first segment tube coupling provided by the invention.
Fig. 3 is the large and small section cross sectional representation of first segment tube coupling.
Fig. 4 is the cross-sectional view of second pipe joint joint of the present invention.
Fig. 5 is the view below the weight that first segment tube coupling of the present invention is positioned over pile driver.
Fig. 6 is work progress schematic diagram provided by the invention.
Among the above-mentioned figure: 1-stake point, 2-heavy in section section, 3-small bore section, 4-screw top section, 5-first segment tube coupling, 6-second pipe joint joint, 7-scale line, 8-internal thread, 9-through hole, 10-pile cover, 11-weight, 12-pile driver.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1: a kind of end thread X-shaped variable cross-section prefabricated tubular pile provided by the invention, its structure as shown in Figure 1, comprise first segment tube coupling 5 and second pipe joint joint 6, described first segment tube coupling 5 is provided with stake point 1, heavy in section section 2, small bore section 3 and screw top section 4 from top to bottom, as Fig. 2.There is screw thread on heavy in section section 2 and small bore section 3 surfaces, and cross section is X-shaped all, as Fig. 3.The cross section of the screw top section 4 of first segment tube coupling is circular.
Second pipe joint joint 6 is the rounding taper type, as Fig. 4, there is through hole 9 at the frustum center, the through hole hypomere is provided with internal thread segment 8, the frustum smooth surface is provided with for the scale line 7 of observing the pile sinking degree of depth in the side of frustum, adopts red paint to mark a row scale in the side of pile tube, precision is 100mm, and scale line 7 is observation, record in construction conveniently; The cross section of frustum is annular.Screw top section 4 by the first segment tube coupling screws in the internal thread segment 8 that second pipe joint saves, and two tube couplings are connected into complete prefabricated tubular pile.
Embodiment 2: the job practices of a kind of end thread X-shaped variable cross-section prefabricated tubular pile that the application embodiment of the invention 1 provides comprises following construction sequence:
(1) smooth place and pile driver 12 is in place, as shown in Figure 5;
(2) the first segment tube coupling 5 of the pre-prefabricated tubular pile of lifting end thread X-shaped variable cross-section of the present invention: fasten the wire rope and the rigging that hang a usefulness earlier, then rigging is bundled near the first segment tube coupling 5 upper end suspension ring, lifting first segment tube coupling starts the machine, make stake center, sharp 1 perpendicular alignmnet stake position, slowly put down after the position is accurate and insert in the soil, buckle well pile cover 10 or pile ring at first segment tube coupling top again, can remove rigging;
(3) pipe stabilizing pile: after the stake point 1 of first segment tube coupling inserts the stake position, fall apart from cold-hammer 1～2 time with less earlier, first segment tube coupling 5 is buried to keeping the vertically stable degree of depth, perpendicularity deviation must not be above 0.5% during the insertion of first segment tube coupling pile body.Shown in construction sequence a among Fig. 6;
(4) injection first segment tube coupling shown in construction sequence b among Fig. 6, hits first segment tube coupling 5 with weight 11, and generally predetermined injection to top is exposed at the height of the nearly lm in ground;
(5) pile extension: shown in construction sequence c among Fig. 6; When carrying out pile extension, 6 at second pipe joint joint is winched to first segment tube coupling 5 tops, the center that makes second pipe joint joint 6 and the center of first segment tube coupling 5 be up and down behind the complete matching, rotates second pipe joint with the pipe clamp instrument and save in placely, makes first segment tube coupling 5 and second pipe joint save 6 and connect into complete prefabricated tubular pile;
(6) injection second pipe joint joint: shown in construction sequence d among Fig. 6; The injection method is identical with step (4);
(7) send pile tube to design elevation: send pile tube by designing requirement, send the center line of pile tube to coincide with pile tube body center line and carry out pile follower when consistent, if the pile tube top is uneven, then level up with gunnysack or ground paper, the hole backfill immediately that pile follower stays is closely knit;
(8) inspect for acceptance: check errorless after, mobile pile driver 12 is finished the construction of end thread X-shaped variable cross-section prefabricated tubular pile to new stake position.
Pile tube of the present invention has simple in structure, the advantage that manufacturing cost is lower, and pipe pile construction method of the present invention, construction technology is simply workable, injection efficiency of construction height.Pile tube of the present invention and job practices thereof can be widely used in the large-scale pile foundation construction of soft clay area, and remarkable in economical benefits has a extensive future.
Claims (2)
1. end thread X-shaped variable cross-section prefabricated tubular pile, comprise first segment tube coupling and second pipe joint joint, it is characterized in that: described first segment tube coupling is provided with stake point, heavy in section section, small bore section and screw top section from top to bottom, heavy in section section and small bore section surface have screw thread, cross section is X-shaped, and screw top section cross section is circular; Second pipe joint joint is the rounding taper type, and there is through hole at the frustum center, and the through hole hypomere is provided with internal thread segment, and the frustum smooth surface is provided with scale line, and the frustum cross section is annular; The internal thread segment that screw top section by the first segment tube coupling screws in second pipe joint joint connects into complete prefabricated tubular pile with two tube couplings.
2. application rights requires the job practices of 1 described a kind of end thread X-shaped variable cross-section prefabricated tubular pile, it is characterized in that, may further comprise the steps:
(1) smooth place and pile driver is in place;
(2) the first segment tube coupling of the pre-prefabricated tubular pile of the described end thread X-shaped variable cross-section of lifting: fasten the wire rope and the rigging that hang a usefulness earlier, then rigging is bundled near the suspension ring of first segment tube coupling upper end, lifting first segment tube coupling starts the machine, make stake center, sharp perpendicular alignmnet stake position, slowly put down after the position is accurate and insert in the soil, buckle well pile cover or pile ring at first segment tube coupling top again, remove rigging;
(3) pipe stabilizing pile: after first segment tube coupling stake point inserts the stake position, fall apart from cold-hammer 1～2 time with less earlier, the first segment tube coupling is buried to keeping the vertically stable degree of depth;
(4) injection first segment tube coupling: with sledgehammer strike first segment tube coupling, generally predetermined injection to top is exposed at the height of the nearly lm in ground;
(5) pile extension: second pipe joint saved winched to first segment tube coupling top, the center that makes its center and first segment tube coupling is up and down behind the complete matching, it is in place to rotate second pipe joint joint with the pipe clamp instrument, makes first segment tube coupling and second pipe joint joint connect into complete prefabricated tubular pile;
(6) injection second pipe joint joint: with sledgehammer strike second pipe joint joint, to all injection is underground;
(7) send pile tube to design elevation: send pile tube by designing requirement, send the center line of pile tube to coincide with pile tube body center line and carry out when consistent, if the pile tube top is uneven, then level up with gunnysack or ground paper, the hole backfill immediately that pile follower stays is closely knit;
(8) inspect for acceptance: check errorless after, mobile pile driver is finished the construction of end thread X-shaped variable cross-section prefabricated tubular pile to new stake position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210411486 CN102900074B (en) | 2012-10-25 | 2012-10-25 | Prefabricated tubular pile with end screw thread with X-shaped variable section and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210411486 CN102900074B (en) | 2012-10-25 | 2012-10-25 | Prefabricated tubular pile with end screw thread with X-shaped variable section and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102900074A CN102900074A (en) | 2013-01-30 |
| CN102900074B true CN102900074B (en) | 2013-08-21 |
Family
ID=47572541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210411486 Active CN102900074B (en) | 2012-10-25 | 2012-10-25 | Prefabricated tubular pile with end screw thread with X-shaped variable section and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102900074B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555397A (en) * | 2017-01-19 | 2017-04-05 | 巴士利(杭州)实业有限公司 | A kind of piling screwed pipe |
| CN115404854A (en) * | 2022-09-17 | 2022-11-29 | 浙江省二建建设集团有限公司 | Connecting structure for precast tubular pile and mounting method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177747Y (en) * | 1993-03-30 | 1994-09-21 | 管自立 | Prefabricated special X type square pile |
| CN2557590Y (en) * | 2002-06-05 | 2003-06-25 | 邹宗煊 | Prefabricated piling pile with bigger top for building foundation |
| CN2771296Y (en) * | 2005-03-24 | 2006-04-12 | 陈秋平 | Wave type friction tubular pile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH093875A (en) * | 1995-06-22 | 1997-01-07 | Nkk Corp | Coupling structure of pile |
-
2012
- 2012-10-25 CN CN 201210411486 patent/CN102900074B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177747Y (en) * | 1993-03-30 | 1994-09-21 | 管自立 | Prefabricated special X type square pile |
| CN2557590Y (en) * | 2002-06-05 | 2003-06-25 | 邹宗煊 | Prefabricated piling pile with bigger top for building foundation |
| CN2771296Y (en) * | 2005-03-24 | 2006-04-12 | 陈秋平 | Wave type friction tubular pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102900074A (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105386443A (en) | FRP pipe and thick-wall steel pipe compounding hollow recycled concrete pile | |
| CN105256794A (en) | Cement soil mixing pile with strong variable-diameter core piles | |
| CN202124862U (en) | Spiral-anchor plate type composite foundation | |
| CN102900074B (en) | Prefabricated tubular pile with end screw thread with X-shaped variable section and construction method thereof | |
| CN201214786Y (en) | Tree root type multi-support pile | |
| CN202124863U (en) | Screw anchor excavated composite foundation | |
| CN102888841B (en) | End part thread five-pointed-star-shaped variable-section prefabricated pipe pile and construction method thereof | |
| CN103590394B (en) | The construction method of original state soil taking and filling pile | |
| CN206220114U (en) | A kind of eight High-Rise Pile Cap Foundations | |
| CN205676886U (en) | One pile for one column reducing steel reinforcement cage | |
| CN202688990U (en) | Steel-concrete structure for reinforcing bored cast-in-place pile with insufficient concrete mark | |
| CN204570676U (en) | A kind of convex tooth pile tube | |
| CN203639900U (en) | Hollow pile | |
| CN203741835U (en) | Pile tip structure for prefabricated pipe pile | |
| CN105908773A (en) | Two-stage socketed pile wind turbine foundation for shallow covering stratum foundation of offshore wind plant and construction method | |
| CN205591213U (en) | Simple and easy device of construction branch stake | |
| CN205134309U (en) | Cement mixing method with reducing strength core pile | |
| CN203429635U (en) | Full-protection-casing raking pile guide pipe guide structure | |
| CN204418171U (en) | Rearmounted body of rod formula anchor structure | |
| CN202577288U (en) | Post grouting concrete prestress hollow square pile | |
| CN204590008U (en) | A kind of pin-connected panel hollow pile | |
| CN205259175U (en) | Lower part enlarges compound foundation pile of diameter section | |
| CN202090334U (en) | Capped two-way-perforated PTC tubular pile composite foundation | |
| CN203960852U (en) | Hand excavated pile | |
| CN219195937U (en) | Prefabricated screw pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |