CN101892664A - Bored concrete pile group construction method of plastic honeycomb pipe retaining wall and honeycombed bored concrete pile - Google Patents
Bored concrete pile group construction method of plastic honeycomb pipe retaining wall and honeycombed bored concrete pile Download PDFInfo
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Abstract
The invention discloses a bored concrete pile group construction method of plastic honeycomb pipe retaining wall and a honeycombed bored concrete pile. Under the protection of deformed steel sleeve, pile driving equipment is adopted, PVC plastic honeycomb pipe and precast concrete pile toe are continuously thrown into the foundation to be reinforced, the PVC plastic honeycomb pipe is kept in a pile hole to be a temporary retaining wall, pile hole group of the PVC plastic honeycomb pipe retaining wall is formed, concrete is continuously poured into the PVC plastic honeycomb pipe retaining wall, the concrete in the pipe is vibrated while the plastic retaining wall pipe is extracted, the pile head is inserted with rib, and cover plate is poured, thus forming honeycombed bored concrete pile group. The plastic honeycomb pipe is a three-hole or seven-hole PVC plastic honeycomb pipe formed by one-step extrusion moulding, the heterogenic bored concrete piles of the three-hole and seven-hole honeycomb pipe retaining walls are compared with circular section bored concrete pile with the same area, vertical bearing capacities are respectively improved by 25% and 20%. The invention has the advantages of low price, high bearing capacity, high specific surface area, high pile-forming quality and rapid construction.
Description
Technical field
The present invention relates to a kind of pile foundation technology of Soft Soil-composite Foundation, the ground that is applied to road, building, port works field is handled.Relate in particular to a kind of plastic honeycomb and manage and protect the castinplace pile group construction method and the honeycombed castinplace pile of wall.
Background technology
In the pile foundation engineering field, use circular, square concrete pile is the most extensive.Improve the bearing capacity of circle, barrette, need to increase the diameter or the length of side of stake, perhaps increase the length of stake, will increase the material usage of stake, cause the construction cost height.How reducing concrete consumption and improving bearing capacity of pile foundation is the long-term problem of being concerned about of researcher always.
Under the situation that section area equates, the side girth of odd-shaped cross-section pile is obviously bigger than side girth square, circular stake, and promptly the specific area of special-shaped pile body is bigger, and the shaped pile side friction enlarges markedly.Shaped pile can improve the vertical bearing capacity of stake effectively under the situation of section area that does not increase stake and length, thereby reaches the purpose of economical with materials, reduction construction costs.
In recent years, the theory and practice of shaped pile has obtained significant progress, and having occurred is the special-shaped castinplace pile of on-circular cross-sections such as cross stake, the stake of T shape, I-shaped stake, the stake of Y shape, has enlarged the native specific area of stake, improves bearing capacity, reduces material usage.But engineering practice shows that these deformed steel sleeve pipe tube-sinking cast-in-situ piles are soil compaction stakes, and the good stake of cast in advance is vulnerable to soil compaction effect and produces inclinations, ruptures even misplace, and the pile body of these soil compaction stakes is easy to generate defective, and its construction technology complexity.
Use for reference the advantage of the construction technology of steel sleeve tube-sinking cast-in-situ pile, adopt 3 holes or 7 hole PVC plastic honeycomb pipes interim retaining wall as special-shaped castinplace pile, the horizontal rigidity of PVC plastic honeycomb pipe is bigger, can guarantee that the stake Kong Buhui that forms in advance is subjected to the soil compaction effect of construction in later period stake and produces the hole of collapsing, necking down and inconsistent phenomenon, the interim retaining wall of stake Kong Qun is effective.Precast concrete pile point and PVC plastic honeycomb pipe are inserted in the deformed steel sleeve pipe together, under the protection of deformed steel sleeve pipe, adopt pile driving equipment, by certain spacing the PVC plastic honeycomb is managed and protected wall and squeeze into continuously in the ground that needs reinforcement, the PVC plastic honeycomb pipe of retaining wall is stayed in the hole temporarily; Form the stake Kong Qunhou in certain zone, continous pouring concrete in PVC plastic honeycomb pipe, vibrate and manage the plastic pipe that the interim retaining wall of employing PVC plastic honeycomb pipe conduct is extracted on the inner concrete limit in the limit, the stake tip cutting is gone into reinforcing bar, after the pile concrete knot is hard, the steel concrete cover plate is built in the stake top casting, forms concrete honeycombed perfusion pile group; Lay bed course, grid, form compound base.PVC plastic honeycomb pipe, is extracted the turnover of PVC plastic honeycomb pipe and is used behind the concrete perfusion as the interim retaining wall of construction, and pile group is constructed continuously.Novel honeycombed castinplace pile has big, the advantages such as bearing capacity is high, pile quality is high, quick construction of specific area cheap, pile body.
Summary of the invention
Technical problem: the plastic honeycomb that the invention provides a kind of vertical bearing capacity that can improve castinplace pile effectively, reduces the stake cost is managed and protected the castinplace pile group construction method and the honeycombed castinplace pile of wall.
Technical scheme:
A kind of plastic honeycomb of the present invention is managed and protected the castinplace pile group construction method of wall:
Step 1 is enclosed within the bottom of PVC plastic honeycomb pipe on the precast pile tip, again the deformed steel sleeve pipe is contained in the periphery of PVC plastic honeycomb pipe, adopt pile driving equipment, the PVC plastic honeycomb pipe and the precast pile tip that are with the deformed steel sleeve pipe are squeezed in the ground that needs reinforcement together, PVC plastic honeycomb pipe is stayed in the hole as interim retaining wall, form the PVC plastic honeycomb and manage and protect the stake hole of wall, extract the deformed steel casing pipe sleeve;
Described PVC plastic honeycomb pipe is the three hole PVC plastic honeycomb pipes of an extrusion modling or the finished product of seven apertures in the human head PVC plastic honeycomb pipe.
A kind of honeycombed castinplace pile of the present invention, constitute by the PVC plastic honeycomb pipe of using as interim retaining wall, precast pile tip, concrete pile body, stake tip cutting muscle, pile cap decking, the bottom of PVC plastic honeycomb pipe is enclosed within on the precast pile tip, the concrete pile body is by the concreting moulding, be formed in the PVC plastic honeycomb pipe and described concrete pile body and PVC plastic honeycomb pipe between be separation relation, stake tip cutting muscle is located at the top of concrete pile body, and described pile cap decking connects and be arranged at the top of concrete pile body by stake tip cutting muscle.
Described honeycombed castinplace pile, pile body outer contour shape are three hole honeycomb tubuloses or seven apertures in the human head honeycomb tubulose.
Use for reference the advantage of the construction technology of steel sleeve tube-sinking cast-in-situ pile, adopt 3 holes or 7 hole PVC plastic honeycomb pipes interim retaining wall as special-shaped castinplace pile, the horizontal rigidity of PVC plastic honeycomb pipe is bigger, can guarantee that the stake Kong Buhui that forms in advance is subjected to the soil compaction effect of construction in later period stake and produces the hole of collapsing, necking down and inconsistent phenomenon, the interim retaining wall of stake Kong Qun is effective.Precast concrete pile point and PVC plastic honeycomb pipe are inserted in the deformed steel sleeve pipe together, under the protection of deformed steel sleeve pipe, adopt pile driving equipment, by certain spacing the PVC plastic honeycomb is managed and protected wall and squeeze into continuously in the ground that needs reinforcement, the PVC plastic honeycomb pipe of retaining wall is stayed in the hole temporarily; Form the stake Kong Qunhou in certain zone, continous pouring concrete in PVC plastic honeycomb pipe, vibrate and manage the plastic pipe that the interim retaining wall of employing PVC plastic honeycomb pipe conduct is extracted on the inner concrete limit in the limit, the stake tip cutting is gone into reinforcing bar, after the pile concrete knot is hard, the steel concrete cover plate is built in the stake top casting, forms concrete honeycombed perfusion pile group; Lay bed course, grid, form compound base.
The PVC plastic honeycomb is managed and protected the special-shaped castinplace pile of wall, and it is bigger to have the pile body specific area, the characteristics that pile side friction is big.Utilize the good and cheap PVC plastic honeycomb of horizontal rigidity to manage and protect wall, guarantee that the stake Kong Buhui that forms in advance is subjected to soil compaction effect and produces the hole of collapsing, necking down and inconsistent phenomenon.That new stake type has is cheap, big, the advantages such as bearing capacity is high, pile quality is high, technology is easy, quick construction of specific area of economical with materials, pile body.The PVC plastic honeycomb is managed and protected the abnormal shape perfusion pile group rapid batch making at the construction field (site) of wall, adopt three hole PVC plastic honeycombs to manage and protect the special-shaped castinplace pile of wall and with the circular section castinplace pile contrast of area, its bearing capacity rises to 25%, and seven apertures in the human head PVC plastic honeycomb is managed and protected the wall pile capacity and improved 20%.
Beneficial effect: the advantage of using for reference the construction technology of tube-sinking cast-in-situ pile; adopt 3 holes or 7 hole PVC plastic honeycomb pipes interim retaining wall as special-shaped castinplace pile; under the protection of deformed steel sleeve pipe; by certain spacing the PVC plastic honeycomb being managed and protected wall squeezes in the ground that needs reinforcement continuously; after forming certain zone; continous pouring concrete in PVC plastic honeycomb pipe; plastics retaining wall pipe is extracted on the pipe inner concrete limit of vibrating, limit; the stake tip cutting is gone into reinforcing bar; the steel concrete cover plate is built in the stake top casting, forms concrete perfusion honeycombed perfusion pile group.That stake of the present invention has is cheap, big, the advantages such as bearing capacity is high, pile quality is high, technology is easy, quick construction of specific area of economical with materials, pile body.The PVC plastic honeycomb is managed and protected the special-shaped castinplace pile of wall, the pile body outer contour shape is that three holes are cellular or seven apertures in the human head is cellular, and the specific area of the special-shaped pile body of honeycomb is bigger, and pile side friction is big, can improve the vertical bearing capacity of stake effectively, thereby reach the purpose of economical with materials, reduction construction costs.Adopt pile driving equipment, by certain spacing the PVC plastic honeycomb being managed and protected wall squeezes in the ground that needs reinforcement continuously, the retaining wall pipe is stayed in the hole temporarily, form the stake Kong Qunhou in certain zone, manage and protect continous pouring concrete in the wall at the PVC plastic honeycomb, plastics retaining wall pipe is extracted on the pipe inner concrete limit of vibrating, limit, pile group is constructed continuously, the PVC plastic honeycomb is managed and protected the abnormal shape perfusion pile group rapid batch making at the construction field (site) of wall, therefore, the construction of novel stake has characteristics such as technology is easy, quick construction.Adopt the big PVC plastic honeycomb of horizontal rigidity to manage and protect wall, the stake Kong Buhui that forms in advance is subjected to soil compaction effect and produces inclination, fracture and inconsistent phenomenon.Thereby, the pile quality height of novel stake.An extrusion modling manufacturing of PVC plastic honeycomb pipe, the manufacture craft maturation, cheap, as the interim retaining wall of construction, extract the turnover of PVC plastic honeycomb pipe and use, do not increase extra cost of construction materials.Thereby, novel stake cheap.Adopt 3 hole PVC plastic honeycombs to manage and protect the shaped pile of wall and with the circular section stake contrast of area, its bearing capacity improves 25%, manages and protects its bearing capacity improvement value 20% of shaped pile of wall with 7 hole PVC plastic honeycombs.The PVC plastic honeycomb is managed and protected the abnormal shape perfusion pile group of wall, and the reinforced soft soil ground that especially is fit to road, port works is handled.
Description of drawings
Fig. 1 is the honeycombed castinplace pile elevational schematic view that plastic honeycomb is managed and protected wall;
Fig. 2 is three hole PVC plastic honeycomb pipe shaped pile sectional schematic diagrams;
Fig. 3 is a seven apertures in the human head PVC plastic honeycomb pipe shaped pile sectional schematic diagram.
Have among the figure: PVC plastic honeycomb pipe 1; Precast pile tip 2; Concrete pile body 3; Stake tip cutting muscle 4; Pile cap decking 5, deformed steel sleeve pipe 6.
The specific embodiment
Embodiment 1
A kind of honeycombed castinplace pile, constitute by the PVC plastic honeycomb pipe of using as interim retaining wall 1, precast pile tip 2, concrete pile body 3, stake tip cutting muscle 4, pile cap decking 5, the bottom of PVC plastic honeycomb pipe 1 is enclosed within on the precast pile tip 2, concrete pile body 3 is by the concreting moulding, and be formed in the PVC plastic honeycomb pipe 1 and be separation relation between described concrete pile body 3 and the PVC plastic honeycomb pipe 1, stake tip cutting muscle 4 is located at the top of concrete pile body 3, and described pile cap decking 5 connects and be arranged at the top of concrete pile body 3 by stake tip cutting muscle 4.In the present embodiment, the pile body outer contour shape is that three holes are cellular or seven apertures in the human head is cellular.
A kind of plastic honeycomb is managed and protected the castinplace pile group construction method of wall:
Step 1 is enclosed within the bottom of PVC plastic honeycomb pipe 1 on the precast pile tip 2, again with the periphery of deformed steel casing pipe sleeve 6 at PVC plastic honeycomb pipe 1, adopt pile driving equipment, the PVC plastic honeycomb pipe 1 and the precast pile tip 2 that are with deformed steel sleeve pipe 6 are squeezed in the ground that needs reinforcement together, PVC plastic honeycomb pipe 1 is stayed in the hole as interim retaining wall, form the stake hole of PVC plastic honeycomb pipe 1 retaining wall, extract deformed steel casing pipe sleeve 6;
In the present embodiment, PVC plastic honeycomb pipe 1 is the three hole PVC plastic honeycomb pipes or the seven apertures in the human head PVC plastic honeycomb pipe finished product of an extrusion modling.
Adopting circumscribed circle diameter is the interim retaining walls of the three hole PVC plastic honeycomb pipes of 500mm as special-shaped castinplace pile, the area of shaped pile pile is that 400mm circular section castinplace pile is identical with diameter, the peripheral girth of shaped pile is 1.25 times of circle stake girth, therefore, the shaped pile side friction is bigger 1.25 times than the circle stake, and its bearing capacity rises to 25%.Described three hole PVC plastic honeycomb pipes are finished products of an extrusion modling, and wall thickness is 3mm.
Adopting circumscribed circle diameter is the interim retaining wall of the seven apertures in the human head PVC plastic honeycomb pipe of 500mm as special-shaped castinplace pile, the area of shaped pile pile is that 450mm circular section castinplace pile is identical with diameter, the peripheral girth of shaped pile is 1.20 times of circle stake girth, therefore, the shaped pile side friction is bigger 1.20 times than the circle stake, and its bearing capacity rises to 20%.Described seven apertures in the human head PVC plastic honeycomb pipe is the finished product of an extrusion modling, and wall thickness is 2mm.Below plastic honeycomb of the present invention is managed and protected the castinplace pile group construction method do explanation in more detail of wall:
The special-shaped castinplace pile that the PVC plastic honeycomb is managed and protected wall rapid batch is at the construction field (site) made, and construction technology process is: place cleaning, and------------stake tip cutting muscle,---laying bed course, grid---forms composite foundation to withdrawing retaining wall plastic pipe to water cover plate for concrete perfusion in batches for driven pile point, retaining wall plastic pipe.In making special-shaped filling pile construction, must be noted that and promptly grab thin each link that concrete key point for process is as follows:
(1) place cleaning
At first " three supplies and one leveling " are carried out in the job site, remove, move an interior existing building, facility and obstruction, remove interior piece stone, trees, take root in thing and pool, drain an interior ponding, make the place smooth-going, no-sundries, no ponding.According to stake position design drawing, measure setting-out, mark stake position outline line with bamboo let (bar).
(2) driven pile point, retaining wall plastic pipe
The precast concrete pile point should be made specially in advance, and the sharp center of stake that the PVC plastic honeycomb is managed and protected the special-shaped castinplace pile of wall should overlap with the stake cross section centre of form, and pointed shape should similar " tip of a pencil ".The size of the afterbody of stake point should inwardly be shunk the gauge of PVC plastic honeycomb pipe, so that PVC plastic honeycomb pipe can entangle the precast concrete pile point.
PVC plastic honeycomb pipe is a kind of widely used optical cable protecting casing, is that the collection sheath is an one with the son pipe, adopts an extrusion modling, low price, and manufacture craft is simple.Advantages such as PVC plastic honeycomb pipe has that specific area is big, smooth surface, horizontal rigidity are big, PVC plastic honeycomb pipe is commonly used products such as 3 holes and 7 Kong Guan, be suitable as very much the template sleeve pipe of shaped pile, PVC plastic honeycomb pipe diameter 200-500mm is advisable, PVC plastic honeycomb thickness of pipe wall 2.0-3.0mm.
Adopt waterproof glass glue to be connected precast concrete pile point and PVC plastic honeycomb pipe, glass cement has the better waterproof energy, can prevent that underground water from entering in the hole, and the cementitiousness of glass cement is not high, and later withdrawing cellularpiston is managed and protected wall easily.
The PVC plastic honeycomb is managed and protected wall and the concrete pile point is inserted in the steel sleeve; under the protection of deformed steel sleeve pipe; adopt special-purpose pile driving equipment; by certain spacing the PVC plastic honeycomb being managed and protected wall squeezes in the ground that needs reinforcement continuously; the retaining wall pipe is stayed in the hole temporarily; after forming certain zone, manage and protect continous pouring concrete in the wall at the PVC plastic honeycomb then, plastics retaining wall pipe is extracted on the pipe inner concrete limit of vibrating, limit.
(3) batch concrete perfusion
In batches behind the pore-forming, at first carry out the self check of pore-forming, have in main the detection: the absolute altitude of eating dishes without rice or wine of pore-forming, absolute altitude at the bottom of the hole, the gradient in hole, actual hole depth, diameter, retaining wall height, infiltration situation in the hole, then Self-Check Report is and passs supervisor, measure the supervising engineer and detect to the scene, next step working procedure is carried out in qualified approval later on.
After forming certain zone, manage and protect continous pouring concrete in the wall at the PVC plastic honeycomb.Concrete passes through vertical duct, rely on concrete deadweight to pour into, concrete slowly flows out from the pipe bottom, enlarge distribution to all around, concrete must have good workability, and sand factor is between 40～50%, and coarse aggregate should be with the cobble that is not more than 3.8 centimetres, water/binder ratio is controlled at about 0.44, can mix Admixtures such as slow setting, plasticizing in the concrete.The special-shaped cast-in-place pile concrete grade of the interim retaining wall of PVC plastic honeycomb pipe is preferably C20-C25.Stake top concrete should suitably surpass stake top design elevation, so that after cutting a top laitance layer, absolute altitude adheres to specification.
(4) withdrawing retaining wall plastic pipe
Behind the concrete perfusion, before concrete initial set, adopt the extension arm extractor in batches, extract the PVC plastic honeycomb and manage and protect wall.Plastics retaining wall pipe is extracted on the pipe inner concrete limit of vibrating, limit, makes concrete compaction.Clean PVC plastic honeycomb pipe, in order to turnover use once more.
(5) stake tip cutting muscle, water cover plate
The special-shaped castinplace pile that the PVC plastic honeycomb is managed and protected wall is a plain concrete pile, and structure connection joint bar should be adopted in the stake top, and joint bar is necessary symmetrical, even along stake week.Joint bar on the stake top must keep vertical insertion, and enough anchorage lengths and topping are arranged, and should prevent to insert partially and insert tiltedly.
Pile cap decking should reach at pile body just can be made after design strength requires, and the preceding reply of making place is cleared up smooth, upright side form cast-in-situ steel reinforced concrete cover plate.The surface of cover plate should be smooth, closely knit, and the phenomenon of honeycomb, pitted skin, scarce limit arrisdefect must not be arranged.
Shaped pile and pile cap decking are combined, and just as " shoe tack " in being inserted into ground, have good stress performance.
(6) lay bed course, grid, form composite foundation.
After pile driving construction finishes,, lay certain thickness bed course and geo-grid, form composite foundation on the stake top for acting in conjunction and the stress ratio of adjusting shaped pile and inter-pile soil.Mattress layer should adopt plate vibrator jolt ramming, and highway construction medium stone cushion thickness is preferably 300-500mm, and setting cushion is answered compaction in layers.Geo-grid is generally the two-dimensional mesh trellis that high molecular polymers such as polypropylene, polyvinyl chloride form through thermoplastic or mold pressing, can carry out " reinforcement " to the soil body and handle.
Claims (4)
1. a plastic honeycomb is managed and protected the castinplace pile group construction method of wall, it is characterized in that:
Step 1 is enclosed within the bottom of PVC plastic honeycomb pipe (1) on the precast pile tip (2), again deformed steel sleeve pipe (6) is contained in the periphery of PVC plastic honeycomb pipe (1), adopt pile driving equipment, the PVC plastic honeycomb pipe (1) and the precast pile tip (2) that will be with deformed steel sleeve pipe (6) are squeezed in the ground that needs reinforcement together, PVC plastic honeycomb pipe (1) is stayed in the hole as interim retaining wall, form the stake hole of PVC plastic honeycomb pipe (1) retaining wall, extract deformed steel casing pipe sleeve (6);
Step 2 repeating step 1, form the stake Kong Qunhou of PVC plastic honeycomb pipe (1) retaining wall, continous pouring concrete in the stake Kong Qun of PVC plastic honeycomb pipe (1) retaining wall, form concrete pile body (3), adopt long-armed extractor, PVC plastic honeycomb pipe (1) is extracted on PVC plastic honeycomb pipe (1) the inner concrete limit of vibrating, limit; At the top of concrete pile body (3), insert stake tip cutting muscle (4) again; After treating that concrete pile body (3) knot is hard, build pile cap decking (5), form honeycombed perfusion pile group.
2. plastic honeycomb according to claim 1 is managed and protected the castinplace pile group construction method of wall, it is characterized in that, PVC plastic honeycomb pipe (1) is the three hole PVC plastic honeycomb pipes of an extrusion modling or the finished product of seven apertures in the human head PVC plastic honeycomb pipe.
3. the described plastic honeycomb of claim 1 is managed and protected the honeycombed castinplace pile that the castinplace pile group construction method of wall uses, it is characterized in that, by the PVC plastic honeycomb pipe of using as interim retaining wall (1), precast pile tip (2), concrete pile body (3), stake tip cutting muscle (4), pile cap decking (5) constitutes, the bottom of PVC plastic honeycomb pipe (1) is enclosed within on the precast pile tip (2), concrete pile body (3) is by the concreting moulding, be formed in the PVC plastic honeycomb pipe (1) and described concrete pile body (3) and PVC plastic honeycomb pipe (1) between be separation relation, stake tip cutting muscle (4) is located at the top of concrete pile body (3), and described pile cap decking (5) connects and be arranged at the top of concrete pile body (3) by stake tip cutting muscle (4).
4. honeycombed castinplace pile according to claim 3 is characterized in that, the outer contour shape of concrete pile body (3) is three hole honeycomb tubuloses or seven apertures in the human head honeycomb tubulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102330243A CN101892664B (en) | 2010-07-21 | 2010-07-21 | Bored concrete pile group construction method of plastic honeycomb pipe retaining wall and honeycombed bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102330243A CN101892664B (en) | 2010-07-21 | 2010-07-21 | Bored concrete pile group construction method of plastic honeycomb pipe retaining wall and honeycombed bored concrete pile |
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| Publication Number | Publication Date |
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| CN101892664A true CN101892664A (en) | 2010-11-24 |
| CN101892664B CN101892664B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102330243A Expired - Fee Related CN101892664B (en) | 2010-07-21 | 2010-07-21 | Bored concrete pile group construction method of plastic honeycomb pipe retaining wall and honeycombed bored concrete pile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074890A (en) * | 2013-01-29 | 2013-05-01 | 浙江华光市政建设有限公司 | Plastic sleeve and steel pipe combined cast-in-place concrete hollow pipe pile and construction method thereof |
| CN105735252A (en) * | 2016-03-31 | 2016-07-06 | 海南大学 | Perforated pipe no-fines pervious concrete pile and assembly structure and construction method thereof |
| CN108643166A (en) * | 2018-05-22 | 2018-10-12 | 江苏地基工程有限公司 | The construction method for pulling out steel sheet pile soil vibration is beaten in a kind of weakening |
| CN110082179A (en) * | 2019-04-30 | 2019-08-02 | 福州大学 | Using the method in PVC soft crystal slab production concrete filled steel tubular member unsticking gap |
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| EP0239287A1 (en) * | 1986-03-26 | 1987-09-30 | Alethea Rosalind Melanie Hall | A method of forming a fixed structure |
| JPH07229135A (en) * | 1994-02-15 | 1995-08-29 | Nkk Corp | Soil improvement method |
| CN2229469Y (en) * | 1995-02-28 | 1996-06-19 | 曹沂风 | Shaped mould-pipe of mould-pipe cast-in-place pile |
| CN101525880A (en) * | 2009-02-25 | 2009-09-09 | 河海大学 | Plastic sleeve concrete pile and method thereof for reinforcing soft soil foundation |
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2010
- 2010-07-21 CN CN2010102330243A patent/CN101892664B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0239287A1 (en) * | 1986-03-26 | 1987-09-30 | Alethea Rosalind Melanie Hall | A method of forming a fixed structure |
| JPH07229135A (en) * | 1994-02-15 | 1995-08-29 | Nkk Corp | Soil improvement method |
| CN2229469Y (en) * | 1995-02-28 | 1996-06-19 | 曹沂风 | Shaped mould-pipe of mould-pipe cast-in-place pile |
| CN101525880A (en) * | 2009-02-25 | 2009-09-09 | 河海大学 | Plastic sleeve concrete pile and method thereof for reinforcing soft soil foundation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074890A (en) * | 2013-01-29 | 2013-05-01 | 浙江华光市政建设有限公司 | Plastic sleeve and steel pipe combined cast-in-place concrete hollow pipe pile and construction method thereof |
| CN105735252A (en) * | 2016-03-31 | 2016-07-06 | 海南大学 | Perforated pipe no-fines pervious concrete pile and assembly structure and construction method thereof |
| CN108643166A (en) * | 2018-05-22 | 2018-10-12 | 江苏地基工程有限公司 | The construction method for pulling out steel sheet pile soil vibration is beaten in a kind of weakening |
| CN108643166B (en) * | 2018-05-22 | 2021-03-30 | 江苏地基工程有限公司 | Construction method for weakening soil layer vibration of driven and pulled steel sheet pile |
| CN110082179A (en) * | 2019-04-30 | 2019-08-02 | 福州大学 | Using the method in PVC soft crystal slab production concrete filled steel tubular member unsticking gap |
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| Publication number | Publication date |
|---|---|
| CN101892664B (en) | 2011-11-09 |
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