CN201358456Y - Plastic sleeve concrete pile - Google Patents
Plastic sleeve concrete pile Download PDFInfo
- Publication number
- CN201358456Y CN201358456Y CNU2009200367956U CN200920036795U CN201358456Y CN 201358456 Y CN201358456 Y CN 201358456Y CN U2009200367956 U CNU2009200367956 U CN U2009200367956U CN 200920036795 U CN200920036795 U CN 200920036795U CN 201358456 Y CN201358456 Y CN 201358456Y
- Authority
- CN
- China
- Prior art keywords
- pile
- sleeve pipe
- concrete
- sleeve
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
A plastic sleeve concrete pile comprises cover plates, plastic sleeves, pile tips, concrete and sleeve joints, wherein, the top parts of the plastic sleeves are fixedly connected with the cover plates, the lower parts of the plastic sleeves are connected with the pile tips, all the plastic sleeves are fixedly connected through sleeve joints, and concrete is placed into the plastic sleeves. A plurality of grouting pipes can also be fixed on the circumferences of the outer walls of the plastic sleeves according to the quality of the foundation soil, the cover plates and the pile tips can be precast, and the cover plates and the pile bodies can be placed integrally. The utility model has the advantages that the compaction effect of soil is small, the pile can not break due to vibration, the influence on the surrounding environment is small, the construction is ensured to be flexible and quick, the requirement for site is low, the quality of the pile body is easy to inspect and control, the use amount of concrete can be controlled, the placing is insusceptible to the outside, the bearing capacity of a single pile is higher, thereby having high performance-price ratio.
Description
Technical field
The utility model relates to a kind of stake type of Foundation Design,, particularly relate to a kind of plastic sleeve concrete pile of soft soil foundation.
Background technology
At present, in engineerings such as speedway, high-speed railway, municipal administration, airport, stake formula embankment has become a kind of general method for processing foundation.Before the utility model, the embankment stake is based on rigid pile such as flexible piles such as cement mixing method and vibrator pipe sinking cast-in-place pile, pile for prestressed pipe, bored piles.Cement mixing method (comprising slurry spray stake and powder spray piling) belongs to flexible pile, strength of the mixing pile is low, cost is economized, but construction quality is wayward, it is limited and can not be used for the deeper location of soft base that conventional method is handled the degree of depth, and consolidation effect is not as the preformed pile ideal, and the number that requires to lay out pile is a lot of in that high fill location requirement for bearing capacity is high, makes that cost also can be very high.Its cost of vibration sinking tube in situ concrete pile will be less than preformed pile, but the vibration sinking tube concrete pile is because big to the influence of pile body on every side in the vibration work progress, is prone to broken pile, quality is wayward and detection difficult, quality accident is many, fullness coefficient is excessive sometimes, aspect factors such as surrounding constructure influence is big are selected for use in actual embankment engineering seldom at present.The prestressed reinforced concrete stake is because quality is very easily controlled and detected, and consolidation effect is good, quality problems such as broken pile can not occur, obtains very widespread usage at present in the deep soft foundation treatment project.But the mode that adopts this preformed pile cost often is quite expensive, and its strength of the mixing pile aspect existed very big waste when simultaneously high-intensity stake was used as the embankment stake, and the engineering operational phase strength of the mixing pile behind pile is not in full use and utilizes.The slurry bonded dispersed body material stake does not have problem such as mud skin sediment but the operating expenses height, except that mud is handled problems such as causing environment pollution, also exist rubble and be difficult for wash clean, shortcoming such as waste material, slip casting be inhomogeneous in the ground of sandstone interlayer.
Before the utility model, a kind of plastic sleeve concrete pile with double-walled is used abroad to some extent, and what it used is the double-layer plastic sleeve pipe of outer wall as screw thread, inner wall smooth.Be the space of sealing between double-wall corrugated pipe two walls, the concrete of cast can not contact with outer wall, and stake soil phase mutual friction trace damages outer wall thread easily, thus influence stake and soil body frictional force; The double-wall corrugated pipe inner wall smooth, the concrete of cast can make concrete can not closely contact with plastic bushing because shrink.These defectives make plastic bushing greatly reduce the contribution of pile body bearing capacity, can not bring into play the friction interlocking between the screw thread and the soil body, and sleeve pipe is inoperative substantially during pile body work, has caused very big waste.In addition, abroad when utilizing the common PVC pipe as double-walled plastic bushing material, because pvc pipe is hard and inflexibility, the machine that sets during construction needs earlier immersed tube to projected depth, then sleeve pipe is sling and put into immersed tube from the immersed tube upper opening, in plastic bushing, immersed tube could be extracted behind the fluid concrete immediately again, finish pile construction.This kind method sleeve pipe sets with concreting and carries out continuously, pays particular attention to the construction that cooperatively interacts, complex procedures, and speed of application is slow.When plastic bushing adopted double-walled HDPE pipe, being characterized in can be suitably crooked, can be in advance with the sleeve pipe that connects with precast pile tip from the vertical immersed tube bottom insertion of the machine of setting and squeeze into the ground.This method sets concrete construction and sleeve pipe to separate carries out, and efficiency of construction improves, but prices are rather stiff for the HDPE material, and construction costs significantly increases.In addition, at present state in addition on the coagulation of plastic bushing the stake type single, employed stake point is flat steel plate, when running into hard upper strata, is difficult for passing.
The single wall screw plastic casing on-site concrete pile job practices that is adopted in the journey under in enclosing at present: adopt all-hydraulic auxiliary vibrations intubate to set the machine construction, utilize its frame can tilt together with steel pipe, to insert with the plastic bushing that precast pile tip connects in the inclination steel pipe easily earlier, machinery is put positive frame and steel pipe then, and plastic bushing is squeezed in the ground.This method has been done many innovations improvement on the basis abroad, adopts the single wall screw pipe, makes the concrete and the sleeve pipe of cast to combine closely, and outer tube wall is survivable simultaneously, can give full play to the rubbing action between the sleeve pipe and the soil body, the raising bearing capacity.Utilize the rack inclining way, the hard sleeve of cheap PVC material also can be satisfied earlier sleeve pipe is all set finish after the job practices of fluid concrete again, improve efficiency of construction, remove this and also can utilize this to set the taper pile of multiple angles.By changing the pointed formula of stake, exploitation concrete and steel plate concrete stake point in conjunction with the auxiliary oscillating machinery of hydraulic pressure, have improved the penetration capacity in the pile works, enlarge range of application.But also there is open defect in it: the pile soil compaction effect makes plastic bushing easy deformation even destruction; Crawler type hydraulic pressure sets machine because the restriction of own wt and dynamical system, is difficult to pass through when running into hard soil layer, set comparatively difficulty, and construction depth is more shallow; Pile sinking expands empty to the very big disturbance of pile peripheral earth generation, and the pile body side friction weakens; Plastic bushing insert that immersed tube needs immersed tube or together with mechanical tilt, set upright, vertically, to medium process, this process time is longer, greatly influences speed of application, improves construction cost.
Therefore seek at present a kind of existing preformed pile quality well have again in situ concrete pile cost province, easy construction, consolidation effect good, the little domestic embankment stake type of promoting the use of that is suitable for of surrounding environment influence is seemed very important.
The utility model content
The purpose of this utility model is to provide a kind of plastic sleeve concrete pile that is applicable to Soft Ground.
The purpose of this utility model is to realize by following technical scheme:
A kind of plastic sleeve concrete pile, it is characterized in that it is made up of cover plate 1, sleeve pipe 2, stake point 3, concrete 4 and casing joint 5, fixedly connected with cover plate 1 in the top of its middle sleeve 2, the bottom of sleeve pipe 2 is connected with stake point 3, fixedly connected with casing joint 5 between every joint sleeve pipe 2, concrete perfusion 4 in the sleeve pipe 2.
The upper lateral of described cover plate 1 is provided with 2-6 root master muscle 6, vertically be provided with 4-6 root reinforcement 7, vertically have two outstanding muscle 8 to go here and there out the cover plate end face in addition, reinforcement 7 is fixedlyed connected with main muscle 6, be placed on then in the mould of " snap-fastener " type, make or adopt reinforced concrete prefabricated forming with concreting.
The outer wall of described sleeve pipe 2 is thread-shaped or is smooth shape that with 5 gluing connections of usefulness PVC cementing agent of casing joint, sleeve pipe 2 usefulness PVC materials are made between every joint sleeve pipe 2.
Described stake point 3 is a reinforced concrete structure, be conical, adopt the casing joint 5 of PVC material, insert in the sleeve pipe plug 9 sleeve pipe 2 bottoms, with the gluing connection of cementing agent, the periphery of sleeve pipe plug 9 is provided with a spill annulus 11 or is provided with the platform 12 of a step.
The periphery of described sleeve pipe 2 can also add the fixing 2-4 of connection root Grouting Pipe 13 in addition, and this effective PVC material or steel pipe are made.
The pile step of plastic sleeve concrete pile is:
(1) with particular manufacturing craft precast concrete pile point 3: the reinforcing bar that the configuration of stake point is set in the steel mould, concreting is shaken close, the platform 12 of spill annulus 11 or step was set before concrete setting, lays plastic bushing plug 9, treat to take off punching block after concrete reaches dried tenacity;
(2) every joint single wall screw plastic casing 2 is connected by casing joint 5 respectively, and gluing, or adopts super glue or holdfast fixedly connected with the PVC cementing agent, casing length is equated with designing pile length or summary above designing pile length;
(3) single wall screw plastic casing 2 lower ends are connected with sleeve pipe plug 9 on the precast concrete pile point 3, and gluing with the PVC cementing agent,, or adopt super glue or holdfast fixedly connected, form the hemi-closure space of sleeve pipe 2 upper end open;
(4) promote single wall screw plastic casing 2 and stake point 3 apart from ground 1.0-2.5 rice height with the plastic sleeve concrete pile machine that sets, plastic bushing 2 usefulness lifting ropes 14 that connect stake point 3 were drawn in the immersed tube from 15 ends of immersed tube, the bottom of immersed tube 15 is inserted in the spill annulus 11 of stake sharp 3 or be shelved on the step platform 12;
(5) open plastic sleeve concrete pile and set machine, find the stake position accurately, immersed tube 15 is squeezed in the ground to the design stake degree of depth in the lump together with the plastic bushing 2 of the inside band pile crown;
(6) to the design stake degree of depth, utilize water injection pipe 16 in plastic bushing 2, to carry out water filling again 2 dozens of plastic bushings, annotate to the long water yield of 1/2-2/3 stake and begin to promote immersed tube 15, and plastic bushing 2 and stake point 3 are stayed in the ground, continue water filling while pulling out, and plastic bushing 2 is protected;
(7) treat that branch section plastic bushing sets and finish, water in the plastic bushing 2 are pumped that unified again fluid concrete pile body and cover plate 1, and vibration compacting form the plastic sleeve concrete pile group in minute section with small pump;
(8) in the time will further improving pile side friction, other to 2 side slip castings of plastic bushing, improves all soil nature matter of stake with small-sized Grouting Pipe 13;
(9) after pile body, cover plate 1 concrete reach and do tenacity, lay reinforcement material on cover plate 1 top, and be connected with cover plate 1, form an integral body or lay sand-gravel cushion earlier on cover plate 1 top, reinforcement material is arranged in the sand-gravel cushion, is not connected with cover plate 1;
(10) lay sand-gravel cushion, form the plastic bushing pile composite foundation.
Inside and outside the utility model pile body sleeve pipe 2 adopts all are single wall pvc pipes of screw thread, also can adopt other plastic bushings.Use single wall screw plastic casing, the concrete of cast can fully contact with plastic bushing 2, can not isolate because of concrete shrinkage or throw off, outer tube wall is not fragile yet like this, strengthened the contact friction force of stake, improved the bearing capacity of stake, given full play to the effect of casing threads with the soil body.Single wall screw plastic casing of the present utility model can be cheap PVC material simultaneously, bending that can be suitable, set the lifting of machine immersed tube in conjunction with stake on the plastic bushing coagulation, set after just can having enough spaces to make things convenient for to utilize rope hauling device that plastic bushing is inserted immersed tube rapidly.So make the plastic bushing that adopts cheap PVC material also can satisfy earlier plastic bushing with the outside and all set the job practices that begins concrete pouring again after finishing, promptly fluid concrete with set the plastic bushing two procedures separately, both independently construct and are independent of each other, thereby increase substantially efficiency of construction.And can only adopt PE soft material pipe such as expensive HDPE or immersed tube to tilt just can accomplish this construction technology in the past, increase a large amount of construction costs.
In addition, in order to reduce an adverse effect of top negative friction, it is that threaded sleeve, top are the modes that all smooth sleeve pipe of inside and outside wall is connected that sleeve pipe 2 can adopt the bottom, can effectively reduce top pile body negative friction.
Plastic bushing also can adopt different rings rigidity along pile body according to the difference of weak soil parameter, construction depth and cloth pile spacing, the sleeve pipe of different rings rigidity can add sealing ring with joint, the auxiliary again methods such as glue and screw that adopt are connected in case of necessity, can guarantee the quality that sets of sleeve pipe like this, can save material again, reduce cost.
The employed precast pile tip of the utility model can be according to each place soil property different mining with steel sheet pile point or concrete pile point or steel plate concrete stake point, and can adopt various ways such as taper shape, X type, has enlarged range of application.At present adopt conical precast concrete pile point more, and preset on the precast pile tip can with the close-connected joint of plastic bushing, the good leak tightness after sleeve pipe is connected with stake is sharp effectively guarantees the quality that sets of sleeve pipe.
Pile cap decking can adopt prefabrication system in the utility model, also can adopt the mode of cover plate and pile concrete integrated casting construction, and shape can be circular or square.When adopting prefabricated cover plate, treat that the pile concrete cast reaches certain intensity after, cover plate is placed in the stake top, and guarantees the straight and even of cover plate, it is flexible to construct; And adopt cast-in-place cover plate, globality is better, after plastic bushing sets and finishes, the water that injects in the sleeve pipe is pumped, excavate a sizeable groove along the sleeve pipe top by the design size of cover plate, the cover plate mould is put into groove, carry out concrete pouring again, construction king-pile tip cutting muscle can be connected the back fluid concrete with two-layer reinforcing bar binding in the cover plate; The outstanding cover plate top of a reinforcing bar part maybe can be set, and reinforcement material directly is layed on the cover plate, and is connected with the outstanding reinforcing bar binding of cover plate, forms integral body, more can bring into play the load-carrying properties of plastic sleeve concrete pile.Or at cover plate top elder generation laying sand-gravel cushion, reinforcement material is arranged in the sand-gravel cushion, is not connected with cover plate.
The effect of the utility model soil compaction is little, can be because of vibration soil compaction and broken pile, and, construction little to surrounding environment influence is flexible quick, low to site requirements, pile quality is easy to check, control, and the controlled and cast of concrete amount is not subjected to ectocine, and bearing capacity of single pile is higher, have good cost performance, and applicability is strong.
Description of drawings
Fig. 1---plastic sleeve concrete pile structural representation
(a) the sleeve pipe inside and outside wall is that thread-shaped (b) top is smooth sleeve pipe, and the bottom is the thread-shaped sleeve pipe
Fig. 2---covering plate structure schematic diagram
Fig. 3---precast concrete pile point schematic diagram
(a) the sharp top of spill annulus (b) stake is arranged is the step platform on stake sharp top
Fig. 4 plastic bushing inserts the immersed tube schematic diagram
Fig. 5 plastic bushing is squeezed into the slip casting of ground rear wall
Reference numeral: the vertically outstanding muscle of 1-cover plate, 2-sleeve pipe, 3-stake point, 4-concrete, 5-sleeve pipe jointing, the horizontal main muscle of 6-, 7-lengthways main steel bar, 8-, 9-precast pile tip middle sleeve plug, the horizontal reinforcement material of 10-, 11-spill annulus, 12-step platform, 13-Grouting Pipe, 14-immersed tube (steel pipe), 15-lifting rope, 16-water injection pipe.
The specific embodiment
Embodiment 1:
Embodiment 2:
Claims (5)
1, a kind of plastic sleeve concrete pile, it is characterized in that it is made up of cover plate (1), sleeve pipe (2), stake point (3), concrete (4) and casing joint (5), fixedly connected with cover plate (1) in the top of its middle sleeve (2), the bottom of sleeve pipe (2) is connected with stake point (3), fixedly connected between every joint sleeve pipe (2) with casing joint (5), concrete perfusion (4) in the sleeve pipe (2).
2, plastic sleeve concrete pile according to claim 1, the upper lateral that it is characterized in that described cover plate (1) is provided with 2-6 root master muscle (6), vertically be provided with 4-6 root reinforcement (7), vertically there are two outstanding muscle (8) to go here and there out the cover plate end face in addition, reinforcement (7) is fixedlyed connected with main muscle (6), be placed on then in the mould of " snap-fastener " type, cast with concrete and form or adopt reinforced concrete prefabricated forming.
3, plastic sleeve concrete pile according to claim 1, it is characterized in that described sleeve pipe (2) for inside and outside all are single wall pvc pipes of screw thread or for being the pvc pipe of smooth shape inside and outside the top employing, screw thread single wall pvc pipe is adopted in the bottom, is connected or with super glue or fixedly connected with holdfast with the PVC cementing agent is gluing with casing joint (5) between every joint sleeve pipe (2).
4, plastic sleeve concrete pile according to claim 1, it is characterized in that described stake point (3) is reinforced concrete structure, be conical, center upper portion is provided with the sleeve pipe plug (9) of using the PVC material or making of metal material, insert in the sleeve pipe plug (9) sleeve pipe (2) bottom, and with the gluing connection of PVC cementing agent or fixedly connected with super glue or holdfast, the periphery of sleeve pipe plug (9) is provided with a spill annulus (11) or is provided with the platform (12) of a step.
5, plastic sleeve concrete pile according to claim 1 is characterized in that the periphery of sleeve pipe (2) can also add the fixing 2-4 root Grouting Pipe (13) that connects in addition, and this effective PVC material or steel pipe are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200367956U CN201358456Y (en) | 2009-02-25 | 2009-02-25 | Plastic sleeve concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200367956U CN201358456Y (en) | 2009-02-25 | 2009-02-25 | Plastic sleeve concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358456Y true CN201358456Y (en) | 2009-12-09 |
Family
ID=41424217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200367956U Expired - Lifetime CN201358456Y (en) | 2009-02-25 | 2009-02-25 | Plastic sleeve concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358456Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127909A (en) * | 2011-01-11 | 2011-07-20 | 河海大学 | Construction method and device for preventing plastic tube concrete pile from bending deflection |
| CN102704469A (en) * | 2012-06-28 | 2012-10-03 | 中铁十三局集团第一工程有限公司 | Shearing ring structure for steel pipe pile |
| CN103206174A (en) * | 2013-04-10 | 2013-07-17 | 中国海洋石油总公司 | Driving riser shoe with elliptical conical teeth |
| CN103334843A (en) * | 2013-06-27 | 2013-10-02 | 山东临工工程机械有限公司 | Land lever variable-power control system |
| CN103485334A (en) * | 2013-09-18 | 2014-01-01 | 上海嘉实（集团）有限公司 | Bi-layer plastic-bushing inverted-arch cambered hollow special-shaped pile and construction method |
| CN103556629A (en) * | 2013-10-23 | 2014-02-05 | 叶长青 | Construction method of special-shaped pile |
| CN107090909A (en) * | 2017-06-19 | 2017-08-25 | 上海欧本钢结构有限公司 | A kind of concrete frame bean column node steel pipe bundle reinforcing sleeve and its assembly method |
| CN108842838A (en) * | 2018-07-25 | 2018-11-20 | 青岛理工大学 | Preparation method of precast concrete expanded head tubular pile with sealed end |
-
2009
- 2009-02-25 CN CNU2009200367956U patent/CN201358456Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127909A (en) * | 2011-01-11 | 2011-07-20 | 河海大学 | Construction method and device for preventing plastic tube concrete pile from bending deflection |
| CN102127909B (en) * | 2011-01-11 | 2012-11-28 | 河海大学 | Construction method and device for preventing plastic tube concrete pile from bending deflection |
| CN102704469A (en) * | 2012-06-28 | 2012-10-03 | 中铁十三局集团第一工程有限公司 | Shearing ring structure for steel pipe pile |
| CN103206174A (en) * | 2013-04-10 | 2013-07-17 | 中国海洋石油总公司 | Driving riser shoe with elliptical conical teeth |
| CN103334843B (en) * | 2013-06-27 | 2016-01-27 | 山东临工工程机械有限公司 | Land lever variable-power control system |
| CN103334843A (en) * | 2013-06-27 | 2013-10-02 | 山东临工工程机械有限公司 | Land lever variable-power control system |
| CN103485334A (en) * | 2013-09-18 | 2014-01-01 | 上海嘉实（集团）有限公司 | Bi-layer plastic-bushing inverted-arch cambered hollow special-shaped pile and construction method |
| CN103485334B (en) * | 2013-09-18 | 2015-07-15 | 上海嘉实（集团）有限公司 | Bi-layer plastic-bushing inverted-arch cambered hollow special-shaped pile and construction method |
| CN103556629A (en) * | 2013-10-23 | 2014-02-05 | 叶长青 | Construction method of special-shaped pile |
| CN103556629B (en) * | 2013-10-23 | 2015-11-25 | 叶长青 | A kind of construction method of shaped pile |
| CN107090909A (en) * | 2017-06-19 | 2017-08-25 | 上海欧本钢结构有限公司 | A kind of concrete frame bean column node steel pipe bundle reinforcing sleeve and its assembly method |
| CN107090909B (en) * | 2017-06-19 | 2023-08-15 | 上海欧本钢结构有限公司 | Reinforced sleeve of concrete frame beam column node steel tube bundle and assembly method thereof |
| CN108842838A (en) * | 2018-07-25 | 2018-11-20 | 青岛理工大学 | Preparation method of precast concrete expanded head tubular pile with sealed end |
| CN108842838B (en) * | 2018-07-25 | 2020-05-12 | 青岛理工大学 | Preparation method of precast concrete expanded head tubular pile with sealed end |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101525880A (en) | Plastic sleeve concrete pile and method thereof for reinforcing soft soil foundation | |
| CN201358456Y (en) | Plastic sleeve concrete pile | |
| CN101532290B (en) | Granule grouting pile of ripple plastic sleeve with hole for strengthening soft soil foundation and strengthening method | |
| CN102433876B (en) | Multi-compartment casing composite pile and construction method thereof | |
| CN104131556B (en) | The construction method of the mutual foundation drainage pile for prestressed pipe of a kind of soft or hard interlayer | |
| CN202898930U (en) | By-river reinforced roadbed structure | |
| CN100371537C (en) | Novel method for reinforcing deep soft foundition-cencrete core sand stone pile compound foundition method | |
| CN104499479B (en) | It is a kind of to pass through the dug pile construction method that sand gravel backfills layer | |
| CN103510510B (en) | A kind of enhancement mode long auger cast-with-pressure concrete pile and construction method | |
| US20140026518A1 (en) | Construction method for root-type foundation anchorage and bored, root-type cast in-situ pile with anchor bolts | |
| CN104612134A (en) | Cast-in place pile post-grouting construction method for pouring construction | |
| CN206928305U (en) | A kind of rigid passive area buttress type supporting construction | |
| CN107513995A (en) | A kind of bridge struction pile post grouting construction method | |
| CN101255691B (en) | Construction method for complete casing tube thin wall filling pile and movable internal mold | |
| CN108560542A (en) | A kind of waste tire cladding builds the two-directed reinforcement and its construction method of slag | |
| CN102400462A (en) | Secondary pressure grouting small pile construction process in seismic strengthening treatment of foundation | |
| CN101532291B (en) | Variable diameter plastic sleeve mixed pile for reinforcing thick-covering and deep-burying soft soil layer and piling method | |
| CN107012871A (en) | A kind of suspension type goes along with sb. to guard him the deep reversed construction method for greatly enhancing foundation ditch fabricated construction | |
| CN102041814A (en) | Novel composite pile (ground) foundation and application method thereof | |
| CN102808407A (en) | Construction method of soft-foundation reinforced concrete cast-in-place pile | |
| CN104480956A (en) | Small-diameter mold-bagged concrete pile composite foundation | |
| CN102733407A (en) | Two-ring grouted single pile foundation | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN203594023U (en) | Enhanced type long auger drilling pressure-grouting concrete pile | |
| CN201411687Y (en) | Corrugated plastic sleeve pipe granule grouting pile with hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091209 |
|
| CX01 | Expiry of patent term |