CN104563102A - Screw pile, manufacture method thereof, and construction method of screw pile - Google Patents
Screw pile, manufacture method thereof, and construction method of screw pile Download PDFInfo
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- CN104563102A CN104563102A CN201410579855.4A CN201410579855A CN104563102A CN 104563102 A CN104563102 A CN 104563102A CN 201410579855 A CN201410579855 A CN 201410579855A CN 104563102 A CN104563102 A CN 104563102A
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- screw
- pile body
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims description 21
- 239000004567 concrete Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000010721 machine oil Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- E02D5/58—Prestressed concrete piles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
- B28B21/62—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements circumferential laterally tensioned
-
- 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
- E02D5/56—Screw piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
Landscapes
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a screw pile, a manufacture method thereof, and a construction method of the screw pile. The screw pile is characterized by comprising a prestress precasting tubular pile body, wherein the prestress precasting tubular pile body is made of high-strength concrete, the pile body is provided with stiffening ribs which are spirally rotated and extruded around the pile body, and the bottom end of the pile body is provided with a blade foot. The manufacture method of the screw pile comprises the following steps: 1) filling a die; 2) arranging materials; 3) tensioning prestressed reinforcements; 4) carrying out centrifugal shaping; 5) carrying out normal-pressure steam curing; 6) demoulding; 7) carrying out autoclave curing; 8) carrying out natural curing. Compared with the traditional pile material, the screw pile has the advantages that cost is reduced by 25-35%.
Description
Technical field
The present invention relates to a kind of screw pile, be applicable to civil engineering groundwork basic field.The invention still further relates to manufacture method and the construction method of above-mentioned screw pile.
Background technology
Stake is the effective means of soft ground treatment, and can be divided into preformed pile and non-preformed pile according to stake production method, traditional construction of prefabricated piles mode is generally static pressure and squeezes into or hammer driven.By comparing screw pile and straight stake, because screw pile is spiral injection, and straight stake is directly squeezed into, and the frictional force that obvious screw pile can provide is more much bigger than straight stake, thus the straight pile capacity of screw pile bearing capacity ratio wants large.Given this, being destroyed as long as screw pile is unlikely when constructing, if replace traditional driven pile to significantly improve pile capacity with screw pile, being obtained obvious economic benefit.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of screw pile with larger frictional resistance.Technical problem to be solved by this invention also comprises the manufacture method providing a kind of above-mentioned screw pile.Technical problem to be solved by this invention also comprises the construction method providing a kind of above-mentioned screw pile.
For this reason, screw pile provided by the invention, comprise by the prestressing force prefabricated pipe pile body adopting high-strength concrete to make, pile body rotates protruding stiffening rib with around pile body shape of threads, and the bottom of pile body is with sword pin.
Present invention also offers a kind of construction method of above-mentioned screw pile, its screw pile construction equipment adopts the screw pile machine of termination band cross-shaped fixtures, the cross bath at the cross-shaped fixtures docking pile body top of screw pile machine is adopted, then by screw pile spiral press-in soil layer during construction.
Present invention also offers a kind of manufacture method of above-mentioned screw pile, comprise the following steps:
1. die-filling
First configure the split cavity mated with screw pile, die-filling front upper, female die is cleaned out, release agent should be brushed evenly, stretch board, anchor plate should be cleaned out one by one, and coat machine oil on contact site, and cage of reinforcement enters mould palpus centering, when steel hoop enters mould, two ends should be placed smooth-going, depression must not be there is or tilt phenomenon, accomplishing that steel hoop and punching block are close to, with mortar leakage prevention;
2. cloth
Adopt material distributing machine cloth, during cloth, stake mould temperature is no more than 45 DEG C, and cloth requires evenly, first cloth two-end part, and rear cloth middle part, ensures that there are enough concrete at two ends;
3. prestressed reinforcement of tensioning
Determine after the stretching force of screw pile should calculate; And stress and stretch value two ore control should be adopted to guarantee the control of stretching force; When there is following situations in manufacturing process for the moment, again tensioning equipment should be verified: during stretch-draw, occur the abnormal conditions such as prestressed reinforcement ruptures continuously; Jack leakage of oil; Gauge hand can not return zero point; Pressure meter changed by jack;
4. centrifugal forming
Centrifugal forming was divided into for four stages: low speed, low-medium speed, middling speed, at a high speed, low speed is the upset of green concrete compound by steel form, makes it recover good mobility; Low-medium speed is the cloth stage, makes green concrete material be uniformly distributed in template inwall; Middling speed is transition stage, makes it to continue uniform distribution and overcome centrifugal force to uprush, and reduces inside and outside layering, improves density and the impermeability of screw pile; Fast phase makes the closely knit shaping of mixture under centrifugal action;
5. atmospheric steam curing
The medium of stake maintenance should adopt saturated steam.
Stream curing be divided into quietly to stop, heat up, constant temperature, cooling four-stage, the quiet general control that stops is at 1 ~ 2h, and programming rate controls at 20 ~ 25 DEG C/h, and thermostat temperature controls, at 70 DEG C ± 5 DEG C, to make concrete reach regulation demoulding strength, and cooling need slowly be carried out;
6. the demoulding
Screw pile demoulding strength must not lower than 40MPa, and prestressing force is put should to take symmetry, staggeredly put Zhang Fangfa;
7. autoclave curing
Enter pressure steaming still after the demoulding and carry out autoclave curing, during autoclave curing constant voltage, Steam pressure control is at 0.9 ~ 1.0MPa, and relevant temperature, at about 180 DEG C, when Pressure Drop in still is consistent to the outer atmospheric pressure of still, just can open still door after getting rid of residual air; When the outer temperature of still is lower or the outer wind speed of still is larger, forbid that stake being transported immediately still lowers the temperature, and avoids because excessive temperature differentials rate of temperature fall is too fast and causes temperature difference crack outward.
8. natural curing
Need to proceed moisture-keeping maintaining after the screw pile demoulding on finished product stockyard, to ensure that concrete surface soaks, prevent shrinkage crack, when guaranteeing that screw pile dispatches from the factory, strength grade is not less than C60.
Screw pile provided by the invention with stiffening rib can produce very large frictional resistance, therefore in same bearer power situation compared with bored pile, material cost can save 25% ~ 35%.
Accompanying drawing explanation
Fig. 1 is the structural representation of screw pile provided by the invention.
Fig. 2 is screw pile stake top provided by the invention floor map.
In each accompanying drawing: 1, cross bath, 2, stiffening rib, 3, pile lining, 4, sword pin.
Detailed description of the invention
As shown in Figure 1 and Figure 2, screw pile provided by the invention comprises by the prestressing force prefabricated pipe pile body 3 adopting high-strength concrete to make, and pile body 3 rotates protruding stiffening rib 2 with around pile body 3 shape of threads, and the bottom of pile body 3 is with sword pin 4.Screw pile inner hollow, pile wall thickness is 120mm ~ 150mm, and pile body (3) top offers cross bath (1), and stake top cross bath 1 degree of depth is 100mm.The every 50cm of pile body arranges stiffening rib 2, and stiffening rib 2 is ring-type, and stiffening rib evagination outermost edge is of a size of 100mm ~ 150mm from stake outward flange, and stiffening rib height is 100mm ~ 150mm, and evagination size and screw pile wall thickness match.Side direction appearance is circular arc, is convenient to a spiral injection; The stake end, arranges sword pin 4, and sword pin 4 is turbination, and sword pin 4 is solid, and sword pin 4 is configured with and is beneficial to cutting soil layer.
Its construction method is as follows: screw pile construction equipment adopts the screw pile machine of termination band cross-shaped fixtures, adopts the cross bath 1 at cross-shaped fixtures docking pile body 3 top of screw pile machine, then by screw pile spiral press-in soil layer during construction.The speed that during construction, pile body screws in adjusts according to different geology, and entering mud speed is 0.9 ~ 1m/min, and screw pile machine rotating speed is 140 ~ 170r/min; Entering argillic horizon speed is 0.7 ~ 0.8m/min, and screw pile machine rotating speed is 110 ~ 130r/min; Entering powder soil horizon speed is 0.5 ~ 0.6m/minm/min, and screw pile machine rotating speed is 70 ~ 100r/min; Entering layer of sand speed is 0.3 ~ 0.4m/min, and screw pile machine rotating speed is 30 ~ 60r/min.
Screw pile making step comprises:
1. die-filling
First configure the split cavity mated with screw pile, die-filling front upper, female die is cleaned out, release agent should be brushed evenly, stretch board, anchor plate should be cleaned out one by one, and coat machine oil on contact site, and cage of reinforcement enters mould palpus centering, when steel hoop enters mould, two ends should be placed smooth-going, depression must not be there is or tilt phenomenon, accomplishing that steel hoop and punching block are close to, with mortar leakage prevention;
2. cloth
Adopt material distributing machine cloth, during cloth, stake mould temperature is no more than 45 DEG C, and cloth requires evenly, first cloth two-end part, and rear cloth middle part, ensures that there are enough concrete at two ends;
3. prestressed reinforcement of tensioning
Determine after the stretching force of screw pile should calculate; And stress and stretch value two ore control should be adopted to guarantee the control of stretching force; When there is following situations in manufacturing process for the moment, again tensioning equipment should be verified: during stretch-draw, occur the abnormal conditions such as prestressed reinforcement ruptures continuously; Jack leakage of oil; Gauge hand can not return zero point; Pressure meter changed by jack;
4. centrifugal forming
Centrifugal forming comprised for four stages: low speed, low-medium speed, middling speed, at a high speed, low speed speed is 200 ~ 300r/min, low-medium speed speed is 400 ~ 600r/min, middling speed speed is 700 ~ 900r/min, high speed speed is 1000 ~ 1100r/min.Low speed is the upset of green concrete compound by steel form, makes it recover good mobility; Low-medium speed is the cloth stage, makes green concrete material be uniformly distributed in template inwall; Middling speed is transition stage, makes it to continue uniform distribution and overcome centrifugal force to uprush, and reduces inside and outside layering, improves density and the impermeability of screw pile; Fast phase makes the closely knit shaping of mixture under centrifugal action;
5. atmospheric steam curing
The medium of stake maintenance should adopt saturated steam.
Stream curing be divided into quietly to stop, heat up, constant temperature, cooling four-stage, the quiet general control that stops is at 1 ~ 2h, and programming rate controls at 20 ~ 25 DEG C/h, and thermostat temperature controls, at 70 DEG C ± 5 DEG C, to make concrete reach regulation demoulding strength, and cooling need slowly be carried out;
6. the demoulding
Screw pile demoulding strength must not lower than 40MPa, and prestressing force puts Zhang Shunxu, should take symmetry, interlock and put Zhang Fangfa;
7. autoclave curing
Enter pressure steaming still after the demoulding and carry out autoclave curing, during autoclave curing constant voltage, Steam pressure control is at 0.9 ~ 1.0MPa, and relevant temperature, at about 180 DEG C, when Pressure Drop in still is consistent to the outer atmospheric pressure of still, just can open still door after getting rid of residual air; When the outer temperature of still is lower or the outer wind speed of still is larger, forbid that stake being transported immediately still lowers the temperature, and avoids because excessive temperature differentials rate of temperature fall is too fast and causes temperature difference crack outward.
8. natural curing
Need to proceed moisture-keeping maintaining after the screw pile demoulding on finished product stockyard, to ensure that concrete surface soaks, prevent shrinkage crack, when guaranteeing that screw pile dispatches from the factory, strength grade is not less than C60.
Claims (8)
1. a screw pile, it is characterized in that: comprise by the prestressing force prefabricated pipe pile body (3) adopting high-strength concrete to make, pile body (3) rotates protruding stiffening rib (2) with around pile body (3) shape of threads, and the bottom of pile body (3) is with sword pin (4).
2. screw pile according to claim 1, is characterized in that: cross bath (1) is offered at described pile body (3) top.
3. screw pile according to claim 1 and 2, it is characterized in that: pile wall thickness is 120mm ~ 150mm, the every 50cm of pile body (3) arranges stiffening rib (2), stiffening rib (2) is ring-type, stiffening rib evagination outermost edge is of a size of 100mm ~ 150mm from stake outward flange, stiffening rib height is 100mm ~ 150mm, and side direction appearance is circular arc.
4. screw pile according to claim 1 and 2, is characterized in that: sword pin (4) is turbination, and sword pin (4) is for solid.
5. the construction method of screw pile described in a claim 1 or 2, it is characterized in that: screw pile construction equipment adopts the screw pile machine of termination band cross-shaped fixtures, the cross bath (1) at cross-shaped fixtures docking pile body (3) top of screw pile machine is adopted, then by screw pile spiral press-in soil layer during construction.
6. the manufacture method of screw pile according to claim 5, is characterized in that: the speed that during construction, pile body screws in adjusts according to different geology, and entering mud speed is 0.9 ~ 1m/min, and screw pile machine rotating speed is 140 ~ 170r/min; Entering argillic horizon speed is 0.7 ~ 0.8m/min, and screw pile machine rotating speed is 110 ~ 130r/min; Entering powder soil horizon speed is 0.5 ~ 0.6m/min m/min, and screw pile machine rotating speed is 70 ~ 100r/min; Entering layer of sand speed is 0.3 ~ 0.4m/min, and screw pile machine rotating speed is 30 ~ 60r/min.
7. a method for screw pile described in manufacturing claims 1 or 2, is characterized in that: comprise the following steps:
1. die-filling
First configure the split cavity mated with screw pile, die-filling front upper, female die is cleaned out, release agent should be brushed evenly, stretch board, anchor plate should be cleaned out one by one, and coat machine oil on contact site, and cage of reinforcement enters mould palpus centering, when steel hoop enters mould, two ends should be placed smooth-going, depression must not be there is or tilt phenomenon, accomplishing that steel hoop and punching block are close to, with mortar leakage prevention;
2. cloth
Adopt material distributing machine cloth, during cloth, stake mould temperature is no more than 45 DEG C, and cloth requires evenly, first cloth two-end part, and rear cloth middle part, ensures that there are enough concrete at two ends;
3. prestressed reinforcement of tensioning
Determine after the stretching force of screw pile should calculate; And stress and stretch value two ore control should be adopted to guarantee the control of stretching force; When there is following situations in manufacturing process for the moment, again tensioning equipment should be verified: during stretch-draw, occur the abnormal conditions such as prestressed reinforcement ruptures continuously; Jack leakage of oil; Gauge hand can not return zero point; Pressure meter changed by jack;
4. centrifugal forming
Centrifugal forming was divided into for four stages: low speed, low-medium speed, middling speed, at a high speed, low speed is the upset of green concrete compound by steel form, makes it recover good mobility; Low-medium speed is the cloth stage, makes green concrete material be uniformly distributed in template inwall; Middling speed is transition stage, makes it to continue uniform distribution and overcome centrifugal force to uprush, and reduces inside and outside layering, improves density and the impermeability of screw pile; Fast phase makes the closely knit shaping of mixture under centrifugal action;
5. atmospheric steam curing
The medium of stake maintenance should adopt saturated steam.
Stream curing be divided into quietly to stop, heat up, constant temperature, cooling four-stage, the quiet general control that stops is at 1 ~ 2h, and programming rate controls at 20 ~ 25 DEG C/h, and thermostat temperature controls, at 70 DEG C ± 5 DEG C, to make concrete reach regulation demoulding strength, and cooling need slowly be carried out;
6. the demoulding
Screw pile demoulding strength must not lower than 40Mpa, and prestressing force is put should to take symmetry, staggeredly put Zhang Fangfa;
7. autoclave curing
Enter pressure steaming still after the demoulding and carry out autoclave curing, during autoclave curing constant voltage, Steam pressure control is at 0.9 ~ 1.0MPa, and relevant temperature, at about 180 DEG C, when Pressure Drop in still is consistent to the outer atmospheric pressure of still, just can open still door after getting rid of residual air; When the outer temperature of still is lower or the outer wind speed of still is larger, forbid that stake being transported immediately still lowers the temperature, and avoids because excessive temperature differentials rate of temperature fall is too fast and causes temperature difference crack outward.
8. natural curing
Need to proceed moisture-keeping maintaining after the screw pile demoulding on finished product stockyard, to ensure that concrete surface soaks, prevent shrinkage crack, when guaranteeing that screw pile dispatches from the factory, strength grade is not less than C60.
8. the manufacture method of screw pile according to claim 7, is characterized in that: during centrifugal forming, low speed speed is 200 ~ 300r/min, low-medium speed speed is 400 ~ 600r/min, middling speed speed is 700 ~ 900r/min, high speed speed is 1000 ~ 1100r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410579855.4A CN104563102B (en) | 2014-10-13 | 2014-10-13 | A kind of screw pile and manufacture method thereof and the construction method of screw pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410579855.4A CN104563102B (en) | 2014-10-13 | 2014-10-13 | A kind of screw pile and manufacture method thereof and the construction method of screw pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104563102A true CN104563102A (en) | 2015-04-29 |
| CN104563102B CN104563102B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410579855.4A Expired - Fee Related CN104563102B (en) | 2014-10-13 | 2014-10-13 | A kind of screw pile and manufacture method thereof and the construction method of screw pile |
Country Status (1)
| Country | Link |
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| CN (1) | CN104563102B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284307A (en) * | 2016-10-14 | 2017-01-04 | 福州大学 | Threaded prefabricated U HPC pile tube and making construction method thereof |
| CN108193670A (en) * | 2017-12-20 | 2018-06-22 | 中冶天工集团有限公司 | A kind of concrete prefabricated screw pile and its construction method |
| CN109183783A (en) * | 2018-10-24 | 2019-01-11 | 南宁职业技术学院 | It is a kind of to exempt from broken apart concrete filling pile head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160680Y (en) * | 1993-02-16 | 1994-04-06 | 肖铁英 | Prefabricated screw pile |
| CN1482308A (en) * | 2003-07-03 | 2004-03-17 | 彭桂皎 | Half screw pile and its pile forming method thereof |
| JP2006342499A (en) * | 2005-06-07 | 2006-12-21 | Seiko Kensetsu:Kk | Bearing pile and intrusion method for bearing pile |
| CN1904307A (en) * | 2005-07-27 | 2007-01-31 | 张超 | Improved structure of spiral anger and profiled semi screw pole body |
| JP2010048039A (en) * | 2008-08-25 | 2010-03-04 | Japan Pile Corp | Prestressed reinforced concrete pile |
| CN102699996A (en) * | 2012-06-29 | 2012-10-03 | 江苏建华管桩有限公司 | Prestressed pipe pile and production method thereof |
| CN203034472U (en) * | 2012-12-11 | 2013-07-03 | 河北省电力勘测设计研究院 | Tubular threaded pile foundation and tubular threaded pile forming apparatus |
| CN204475320U (en) * | 2014-10-13 | 2015-07-15 | 叶长青 | A kind of screw pile |
-
2014
- 2014-10-13 CN CN201410579855.4A patent/CN104563102B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160680Y (en) * | 1993-02-16 | 1994-04-06 | 肖铁英 | Prefabricated screw pile |
| CN1482308A (en) * | 2003-07-03 | 2004-03-17 | 彭桂皎 | Half screw pile and its pile forming method thereof |
| JP2006342499A (en) * | 2005-06-07 | 2006-12-21 | Seiko Kensetsu:Kk | Bearing pile and intrusion method for bearing pile |
| CN1904307A (en) * | 2005-07-27 | 2007-01-31 | 张超 | Improved structure of spiral anger and profiled semi screw pole body |
| JP2010048039A (en) * | 2008-08-25 | 2010-03-04 | Japan Pile Corp | Prestressed reinforced concrete pile |
| CN102699996A (en) * | 2012-06-29 | 2012-10-03 | 江苏建华管桩有限公司 | Prestressed pipe pile and production method thereof |
| CN203034472U (en) * | 2012-12-11 | 2013-07-03 | 河北省电力勘测设计研究院 | Tubular threaded pile foundation and tubular threaded pile forming apparatus |
| CN204475320U (en) * | 2014-10-13 | 2015-07-15 | 叶长青 | A kind of screw pile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284307A (en) * | 2016-10-14 | 2017-01-04 | 福州大学 | Threaded prefabricated U HPC pile tube and making construction method thereof |
| CN106284307B (en) * | 2016-10-14 | 2018-07-20 | 福州大学 | Threaded prefabricated U HPC pile piles and its making construction method |
| CN108193670A (en) * | 2017-12-20 | 2018-06-22 | 中冶天工集团有限公司 | A kind of concrete prefabricated screw pile and its construction method |
| CN109183783A (en) * | 2018-10-24 | 2019-01-11 | 南宁职业技术学院 | It is a kind of to exempt from broken apart concrete filling pile head |
| CN109183783B (en) * | 2018-10-24 | 2023-10-24 | 南宁职业技术学院 | Breaking-free separated pile head of concrete filling pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104563102B (en) | 2016-08-24 |
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