CN105544525A - Uplift pile with unfolding barb and construction method thereof - Google Patents
Uplift pile with unfolding barb and construction method thereof Download PDFInfo
- Publication number
- CN105544525A CN105544525A CN201510923360.3A CN201510923360A CN105544525A CN 105544525 A CN105544525 A CN 105544525A CN 201510923360 A CN201510923360 A CN 201510923360A CN 105544525 A CN105544525 A CN 105544525A
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- pile
- blade
- stake
- hangnail
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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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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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
- E02D5/24—Prefabricated piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an uplift pile with an unfolding barb and a construction method thereof. The uplift pile comprises a precast tubular pile. The precast tubular pile comprises a maternal pile and a pile tip, wherein a pile body of the maternal pile extends from a pile tail to a cavity of the pile tip, one or more layers of vane pushing-away holes communicating with the cavity are formed in the pile wall of the maternal pile in the length direction of the pile body, the lower edges of the side, far away from the cavity, of the vane pushing-away holes are provided with vanes through rotary devices, the vanes can rotate away from the cavity around the rotary devices, and the cavity is provided with a force application part used for pushing the vanes away from the vane pushing-away holes. The construction method with the uplift pile with the unfolding barb is shown in the specification. Compared with a traditional precast pile, the unfolding vanes attached to the pile body work together with a soil body, so that the anti-floating design capacity of the uplift pile is greatly improved, the bearing capacity of the pile is improved by several times or even dozens of times, the number of piles and the length of the pile are greatly reduced, and the comprehensive benefits are quite remarkable.
Description
Technical field
The present invention relates to industry and residential construction area, especially relate to a kind of anti-pulling pipe piles and construction method thereof with launching hangnail, it is for the Foundation Design in construction work.
Background technology
Since 21 century, along with the fast development of China's economic construction, the utilization of the underground space becomes new developing direction.Also be subject to people's attention more and more.But in China's Coastal Areas, groundwater table is generally higher.Larger water buoyancy is often born in underground structure in high water level soil layer, structure.For reducing water buoyancy to the impact of underground building, uplift pile basis usually need be taked.Traditional precast concrete square pile and pile tube, the bearing capacity of usual stake depends on the frictional force of a sidewall.Due to the restriction of pile body and soil layer bearing capacity, when especially soil layer soil structure is poor, the bearing capacity of stake own is little.For meeting requirement for bearing capacity, usually can pass through increase the quantity of stake or add the length of timber pile self, very unreasonable economically.Further, because pile body is long in pile driving process, easily cause pile body breaking, pile body inclining, pile sinking does not reach designing requirement; Further, the restriction owing to transporting, time usual work is prefabricated, long stake is all segmentation prefabricating, after being transported to scene, needs spreading at pile driving process pile by merogenesis, causes a large amount of human and material resources costs; And pile body is spreading at the scene, quality affects by field condition, weather and the factor such as artificial, and pile extension place often has the phenomenon of the cracking that gets loose; The extensive mode of construction of tradition seriously hinders the construction of low-carbon (LC), harmonious society.
To sum up, providing a kind of new preformed pile and construction, improve pile body structure feature simultaneously, in order to solve the drawback of traditional preformed pile, is the certainty of construction process development.
Summary of the invention
Object of the present invention is exactly to solve the problem, and provides a kind of anti-pulling pipe piles and construction method thereof with launching hangnail.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of anti-pulling pipe piles with launching hangnail, it comprises by the prefabricated tubulose stake in hammering or static pressure underground layer, prefabricated tubulose stake comprises female stake and pile top, the pile body of female stake has the cavity extending to pile top from stake tail, the pile lining of female stake is provided with along pile body length direction the blade that one deck or multilayer communicate with cavity and backs down hole, blade backs down that hole is provided with by tumbler away from the lower edge of cavity side can around this tumbler towards the blade rotated away from cavity direction, cavity is provided with force-applying piece blade top being backed down hole from blade.
Further, blade comprises: be installed on the intra vane that blade backs down hole, and it has and extends and projection for coordinating with force-applying piece towards cavity; Be installed on blade and back down the outer leafs of hole away from cavity side; The bottom of intra vane, outer leafs side is in opposite directions connected to tumbler.
Further, protruding top adopts arc-shaped recliner face structure.
Further, pile top is pyramid, and pyramid top is pile top end, and bottom is square, and the length of side of bottom is greater than the length of side of female stake.
Further, blade along female stake pile body circumferentially.
Further, force-applying piece has the front end of circular arc.
Further, force-applying piece is steel pipe.
Further, blade back down hole in female stake symmetrically mode arrange.
Utilize band to launch the construction method of the anti-pulling pipe piles of hangnail, it comprises the steps:
Step one, preform carrier stake
Female stake is reserved internal cavities, and meanwhile, be the blade open holes of N along female pile body cross section and length direction pile lining magnitude setting, pile top is arranged to pyramid, and bottom pyramid, size dimension is greater than the length of side of female stake pile body, forms pile top hangnail effect;
Step 2, prefabricated and additional blades
Prefabricated required blade as required, be installed on outside blade open holes by tumbler by prefabricated blade, thus blade and female stake are connected as a single entity, and have and can open turn over function, the original state of blade is in closed condition;
Step 3, female stake press-in soil layer
By female stake under blade closed condition, by hammering or static pressure, squeeze in soil layer, and squeeze in soil layer by bending for female stake, now, the absolute altitude of female stake is less than default absolute altitude;
Step 4, opens blade
After female stake squeezes into the soil body completely, insert the stake heart with force-applying piece, and by blade open holes, blade is backed down;
Step 5, mounted blade
After step 4 completes, pull out, pull out and get back to design elevation position female stake on carrying out, blade opens by soil body extruding, forms blade hangnail effect, thus produces powerful uplift resistance.
Compared with prior art, the present invention has following effectively effect:
(1) on bearing capacity of pile, by being attached to one or more layers blade of female stake sidewall, participate in the middle of a self-bearing capacity, whole pile and soil body many places are held out against, compared with traditional concrete precast pile, several times even decades of times improve the supporting capacity of stake with Shangdi, and workmanship is improved simultaneously, safety significantly promotes, and comprehensive benefit is extremely remarkable;
(2) in preformed pile quantity and material, by improving, pile body supporting capacity is greatly improved, for structure, and available less preformed pile quantity, go to resist larger load, material usage greatly reduces, and meets low-carbon (LC) society;
(3) simultaneously, the minimizing of preformed pile quantity, greatly reduces the machine-team time of pile foundation equipment, and workman's site work amount greatly reduces, and labor cost is controlled further;
(4) change traditional concrete precast pile force way and feature, give full play to the feature of each layer bearing capacity of the soil body, make pile body each several part stressed evenly with rationally, thus reduce female pile length further;
(4) band launches the resistance to plucking tubulose pilework of " hangnail " blade, because supporting capacity improves further, thus make the long reduction of stake, single pile is carried and is become possibility, makes pile body under normal circumstances without the need to spreading, just can bear larger load, reduce site work amount, and reduce further by the impact of the factor such as weather, manpower, substantially reduce the construction period, economic benefit is very remarkable.
Accompanying drawing explanation
Fig. 1 is the anti-pulling pipe piles stereogram that band launches hangnail;
Fig. 2 is the anti-pulling pipe piles Leaf spreading principle figure that band launches hangnail;
Fig. 3 is the construction method Leaf scheme of installation that band launches the anti-pulling pipe piles of hangnail;
Fig. 4 is that band launches in the construction method of the anti-pulling pipe piles of hangnail that female stake is disposable squeezes into soil layer schematic diagram completely;
Fig. 5 is the construction method king-pile heart insertion force-applying piece that band launches the anti-pulling pipe piles of hangnail, opens the schematic diagram of blade;
Fig. 6 is that in the construction method of the anti-pulling pipe piles of band expansion hangnail, female stake up pulls out back design elevation, the state diagram that blade launches completely.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each embodiment of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following embodiment and amendment, each claim of the application technical scheme required for protection also can be realized.
As shown in Figure 1, a kind of anti-pulling pipe piles with launching hangnail, it comprises by the prefabricated tubulose stake in hammering or static pressure underground layer, prefabricated tubulose stake includes but are not limited to square tube as shown in the figure, also can be such as pipe, other shapes such as polygon, the design length design about 1 meter more than physical length of pile body, prefabricated tubulose stake comprises female stake 1 and pile top 5, female stake is concrete prefabricated element, inner formation cavity time prefabricated, the pile body of female stake 1 has the cavity 2 extending to pile top from stake tail, the pile lining of female stake is provided with along pile body length direction the blade that one deck or multilayer communicate with cavity and backs down hole 3, two-layer blade such as shown in Fig. 1 backs down hole, and, blade backs down hole along female stake pile body circumferentially, such as cross section is that four sidewalls of square female stake are provided with blade and back down hole, and, blade back down hole in female stake symmetrically mode arrange, two-layer blade backs down in hole in FIG, it is symmetrical between two that every layer of blade backs down Kong Jun, blade backs down that hole is provided with by tumbler 6 away from the lower edge of cavity side can around this tumbler towards the blade 4 rotated away from cavity direction, the length of blade can set as required and adjust according to actual carrying out, cavity is provided with the force-applying piece 7 blade top being backed down hole from blade, force-applying piece 7 can be the devices such as such as steel pipe, and, force-applying piece has the front end of circular arc.
See Fig. 2, blade comprises: be installed on the intra vane 40 that blade backs down hole, and it has and extends and projection 400 for coordinating with force-applying piece towards cavity, and protruding employing arc-shaped recliner face, top structure, is conducive to coordinating with the circular arc front end of force-applying piece; Be installed on blade and back down the outer leafs 41 of hole away from cavity side; The bottom of intra vane, outer leafs side is in opposite directions connected to tumbler 6, and tumbler here can be turning cylinder.
Again see Fig. 1, pile top is female stake " hangnail " prefabricated in advance, and pile top 5 is pyramid, and pyramid top is pile top end, and bottom is square, and the length of side of bottom is greater than the length of side of female stake, and bottom width section and the soil body are combined closely, and produce powerful uplift resistance.
Introduce the construction method utilizing band to launch the anti-pulling pipe piles of hangnail below in detail:
Shown construction method comprises the steps:
(1) preform carrier stake: female stake is reserved internal cavities, meanwhile, be the blade open holes of N along female pile body cross section and length direction pile lining magnitude setting, pile top is arranged to pyramid, bottom pyramid, size dimension is greater than the length of side of female stake pile body, forms pile top hangnail effect.
(2) prefabricated and additional blades: see Fig. 3, prefabricated required blade, is installed on prefabricated blade outside blade open holes by tumbler, thus blade and female stake is connected as a single entity as required, and have and can open turn over function, the original state of blade is in closed condition.
(3) female stake press-in soil layer: by female stake under blade closed condition, by hammering or static pressure, squeeze in soil layer, and squeeze in soil layer by bending for female stake, now, the absolute altitude of female stake is less than default absolute altitude, completely by shown in Figure 4 for the state of female stake press-in soil layer.
(4) open blade: see Fig. 5, after female stake squeezes into the soil body completely, insert the stake heart with force-applying pieces such as such as steel pipes, and by blade open holes, blade is backed down.
(5) mounted blade: see Fig. 6, after step (4) completes, pulls out on carrying out, pull out and get back to design elevation position female stake, and blade opens by soil body extruding, forms blade hangnail effect, thus produces powerful uplift resistance.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (9)
1. band launches the anti-pulling pipe piles of hangnail, it comprises by the prefabricated tubulose stake in hammering or static pressure underground layer, described prefabricated tubulose stake comprises female stake and pile top, the pile body of described female stake has the cavity extending to pile top from stake tail, it is characterized in that, the pile lining of described female stake is provided with along pile body length direction the blade that one deck or multilayer communicate with cavity and backs down hole, described blade backs down that hole is provided with by tumbler away from the lower edge of cavity side can around this tumbler towards the blade rotated away from cavity direction, described cavity is provided with force-applying piece blade top being backed down hole from blade.
2. band according to claim 1 launches the anti-pulling pipe piles of hangnail, and it is characterized in that, described blade comprises:
Be installed on the intra vane that blade backs down hole, it has and extends and projection for coordinating with force-applying piece towards cavity;
Be installed on blade and back down the outer leafs of hole away from cavity side;
The bottom of described intra vane, outer leafs side is in opposite directions connected to described tumbler.
3. band according to claim 2 launches the anti-pulling pipe piles of hangnail, it is characterized in that, the top of described projection adopts arc-shaped recliner face structure.
4. band according to claim 1 launches the anti-pulling pipe piles of hangnail, and it is characterized in that, described pile top is pyramid, and pyramid top is pile top end, and bottom is square, and the length of side of bottom is greater than the length of side of female stake.
5. band according to claim 1 launches the anti-pulling pipe piles of hangnail, and it is characterized in that, described blade along female stake pile body circumferentially.
6. band according to claim 1 launches the anti-pulling pipe piles of hangnail, and it is characterized in that, described force-applying piece has the front end of circular arc.
7. band according to claim 6 launches the anti-pulling pipe piles of hangnail, and it is characterized in that, described force-applying piece is steel pipe.
8. band according to claim 1 launches the anti-pulling pipe piles of hangnail, it is characterized in that, described blade back down hole in female stake symmetrically mode arrange.
9. utilize the arbitrary described band of claim 1-8 to launch a construction method for the anti-pulling pipe piles of hangnail, it is characterized in that, this construction method comprises the steps:
Step one, preform carrier stake
Female stake is reserved internal cavities, and meanwhile, be the blade open holes of N along female pile body cross section and length direction pile lining magnitude setting, pile top is arranged to pyramid, and bottom pyramid, size dimension is greater than the length of side of female stake pile body, forms pile top hangnail effect;
Step 2, prefabricated and additional blades
Prefabricated required blade as required, be installed on outside blade open holes by tumbler by prefabricated blade, thus blade and female stake are connected as a single entity, and have and can open turn over function, the original state of blade is in closed condition;
Step 3, female stake press-in soil layer
By female stake under blade closed condition, by hammering or static pressure, squeeze in soil layer, and squeeze in soil layer by bending for female stake, now, the absolute altitude of female stake is less than default absolute altitude;
Step 4, opens blade
After female stake squeezes into the soil body completely, insert the stake heart with force-applying piece, and by blade open holes, blade is backed down;
Step 5, mounted blade
After step 4 completes, pull out, pull out and get back to design elevation position female stake on carrying out, blade opens by soil body extruding, forms blade hangnail effect, thus produces powerful uplift resistance.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923360.3A CN105544525A (en) | 2015-12-11 | 2015-12-11 | Uplift pile with unfolding barb and construction method thereof |
| PCT/CN2015/098183 WO2017096642A1 (en) | 2015-12-11 | 2015-12-22 | Uplift tubular pile having spreadable barbs and construction method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923360.3A CN105544525A (en) | 2015-12-11 | 2015-12-11 | Uplift pile with unfolding barb and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105544525A true CN105544525A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923360.3A Pending CN105544525A (en) | 2015-12-11 | 2015-12-11 | Uplift pile with unfolding barb and construction method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105544525A (en) |
| WO (1) | WO2017096642A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105839617A (en) * | 2016-05-25 | 2016-08-10 | 浙江乔兴建设集团有限公司 | High-stability building pile |
| CN106638569A (en) * | 2017-02-07 | 2017-05-10 | 三峡大学 | Device and method for improving bearing capacity and stability of pile |
| CN107354941A (en) * | 2017-08-30 | 2017-11-17 | 成都智宸科技有限公司 | A kind of strong building stake of stability |
| CN109056715A (en) * | 2018-08-23 | 2018-12-21 | 南京林业大学 | A kind of fiberglass reinforced plastics uplift pile and construction method |
| CN109440765A (en) * | 2018-11-06 | 2019-03-08 | 佛山科学技术学院 | A kind of unidirectional strenthening member |
| CN111238863A (en) * | 2020-01-19 | 2020-06-05 | 汤继东 | Soil sampling device and using method |
| CN114411713A (en) * | 2022-01-14 | 2022-04-29 | 江苏方园桩业有限公司 | Concrete square pile with multi-angle adjusting mechanism inside |
| CN115012395A (en) * | 2022-07-25 | 2022-09-06 | 中交一公局集团有限公司 | Tubular pile assembly |
| CN115162355A (en) * | 2022-07-21 | 2022-10-11 | 中煤江南建设发展集团有限公司 | Foundation pit enclosure method for expanding construction from deep foundation pit to shallow foundation pit |
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| JPS6397712A (en) * | 1986-10-14 | 1988-04-28 | Nkk Corp | Soil cement composite pile |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839617B (en) * | 2016-05-25 | 2024-03-22 | 浙江乔兴建设集团有限公司 | High firm building stake |
| CN105839617A (en) * | 2016-05-25 | 2016-08-10 | 浙江乔兴建设集团有限公司 | High-stability building pile |
| CN106638569A (en) * | 2017-02-07 | 2017-05-10 | 三峡大学 | Device and method for improving bearing capacity and stability of pile |
| CN107354941A (en) * | 2017-08-30 | 2017-11-17 | 成都智宸科技有限公司 | A kind of strong building stake of stability |
| CN109056715A (en) * | 2018-08-23 | 2018-12-21 | 南京林业大学 | A kind of fiberglass reinforced plastics uplift pile and construction method |
| CN109056715B (en) * | 2018-08-23 | 2024-06-07 | 南京林业大学 | Glass fiber reinforced plastic uplift pile and construction method |
| CN109440765A (en) * | 2018-11-06 | 2019-03-08 | 佛山科学技术学院 | A kind of unidirectional strenthening member |
| CN111238863A (en) * | 2020-01-19 | 2020-06-05 | 汤继东 | Soil sampling device and using method |
| CN114411713A (en) * | 2022-01-14 | 2022-04-29 | 江苏方园桩业有限公司 | Concrete square pile with multi-angle adjusting mechanism inside |
| CN114411713B (en) * | 2022-01-14 | 2022-11-08 | 江苏方园桩业有限公司 | Concrete square pile with multi-angle adjusting mechanism inside |
| CN115162355A (en) * | 2022-07-21 | 2022-10-11 | 中煤江南建设发展集团有限公司 | Foundation pit enclosure method for expanding construction from deep foundation pit to shallow foundation pit |
| CN115012395B (en) * | 2022-07-25 | 2024-03-22 | 中交一公局集团有限公司 | Tubular pile assembly |
| CN115012395A (en) * | 2022-07-25 | 2022-09-06 | 中交一公局集团有限公司 | Tubular pile assembly |
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| Publication number | Publication date |
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| WO2017096642A1 (en) | 2017-06-15 |
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