CN108005079B - Implanted precast pile grouting device and implanted grouting process - Google Patents
Implanted precast pile grouting device and implanted grouting process Download PDFInfo
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- CN108005079B CN108005079B CN201810020891.5A CN201810020891A CN108005079B CN 108005079 B CN108005079 B CN 108005079B CN 201810020891 A CN201810020891 A CN 201810020891A CN 108005079 B CN108005079 B CN 108005079B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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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
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides an implanted precast pile grouting device and an implanted grouting process, wherein an inner pipe is arranged in an outer pipe, a plurality of groups of inner grouting holes are dug on the side wall of the inner pipe, a plurality of groups of inner pipe sealing rings are arranged between the inner pipe and the outer pipe, a plurality of groups of outer grouting holes are dug on the side wall of the outer pipe, the outer pipe and the inner pipe of a pressure grouting mechanism are annular pipes, one end of a three-way pipe is arranged on the outer side of the outer pipe, a plurality of rollers are connected to the inner ring of the annular outer pipe, a plurality of supporting blocks are connected to annular steel bars, the outer pipe and the inner pipe of each pressure grouting mechanism are U-shaped, and the inner pipe of each pressure grouting mechanism is respectively communicated with a connecting pipe through a communicating pipe. The implanted precast pile grouting device and the implanted grouting process avoid the waste of pile replacement after full-section stirring of cement and soil in pile holes in the prior art, and meanwhile, the formed effective pile diameter is larger than that of a stirring soil pile, so that the pile body bearing capacity is larger.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to an implanted precast pile grouting device and an implanted grouting process.
Background
The existing precast pile construction technology comprises a hammering method and a static pressure method. The hammering method is the most traditional method of driving prefabricated piles into the ground by using a large hammer, but because the noise is very loud and vibration can damage the foundation of nearby buildings, the method is forbidden to use in cities at present. The static pile pressing method is to press the prefabricated pile directly into the ground by using the pile machine dead weight or adding weights, and the method has almost no noise, but is not applicable to places with shallow rock stratum because the prefabricated pile cannot be driven into harder rock stratum, and has uniform geological requirements, otherwise, the pile is easy to burst (the prefabricated pile bursts due to overlarge pressure or impact). The cast-in-place pile is opposite to the precast pile, a pile hole is manufactured by using tools such as a drill bit or a pile cylinder, then concrete is poured into the ground to directly manufacture the pile in the ground, and the cast-in-place pile can be almost suitable for pile foundation construction in all occasions, but because the underground condition can not be detected, the process requirement is higher, otherwise, the problems such as hole collapse, diameter deviation and pile breakage are easy to occur. Meanwhile, a large amount of slurry is generated in the construction of the cast-in-place pile, the field construction environment is influenced, and the current requirement on environmental protection is not met.
The current pile planting method comprises the following steps:
a. positioning a pile planting machine: the pile planting machine is positioned at the designated pile position and centered in position;
b. hole guiding operation: starting a pile planting machine, sinking a drill rod of the pile planting machine along the guide frame, and starting the drill rod of the pile planting machine to drill to the designed depth;
c. lifting, spraying and stirring: lifting a drill rod of the pile planting machine, starting a slurry feeding pump, spraying cement slurry to soil body of a designated pile position, lifting the drill rod of the pile planting machine while spraying cement slurry, and stirring cement soil;
d. sinking and stirring: after the pile planting machine lifts the drill rod and sprays slurry to the ground, sinking again and starting the pile planting machine to stir cement soil;
e. and (3) lifting, guniting and stirring for the second time: repeating the operation process of the step c, then shifting the drill rod of the pile planting machine to the next pile position, repeating the step a and the step b, and detaching the hole-forming drill rod to the hole opening to be sprayed with slurry, stirred and driven to pile;
f. pile planting machine returns normal position hoist and mount pile sinking device and tubular pile: hoisting a pile sinking device of the pile planting machine, and hoisting the pipe pile into the hole in the step b;
g. and (5) screwing in a planting pile: screwing the tubular pile into the stirred pile hole;
h. reserving a pile extension working face;
i. welding pile splicing: electric welding piles are used between the upper section pile heads and the lower section pile heads, a clamp device is arranged at the orifice to prevent the pile body from falling, and the lower section pile body is welded and connected with the upper section pile after being fixed in a surrounding manner;
j. screwing in the planting pile again: screwing the connected pile body into the cement soil again to reach the designed elevation; and after the operation is finished, moving to the pile position of the next submerged hole-forming drill rod, and performing next pile-saving construction.
The pile planting method firstly stirs cement to counter bore, and a large amount of replacement slurry is generated in the stirring process to waste resources and pollute the environment, and meanwhile, cement is not needed for the section of the pile body, so that the resource waste is also caused.
Disclosure of Invention
In view of the above, the invention aims to provide an implanted precast pile grouting device, which solves the problems that in the prior art, the construction noise of a hammering method is large, the foundation of a nearby building is possibly damaged by vibration, a static pressure pile is generally not applicable to a place with shallow rock stratum, and the pile explosion and the filling pile are easy to occur, and because the underground condition cannot be detected, the process requirement is high, otherwise, the problems of collapse hole, deviation diameter, pile breakage, slurry generation, environmental protection and the like are easy to occur.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
an implantable precast pile grouting device, comprising: the device comprises a pressure grouting mechanism, a first grouting device and a second grouting device.
The pressure grouting mechanism comprises rubber sleeves, an outer tube, an inner tube and an inner tube sealing ring, wherein the inner tube is arranged in the outer tube, a plurality of groups of inner slurry outlet holes are dug in the side wall of the inner tube, a plurality of groups of inner tube sealing rings are arranged between the inner tube and the outer tube, each group of inner tube sealing rings are arranged in two, the two inner tube sealing rings in the same group are arranged at two ends of the inner slurry outlet holes in the same group, the inner tube sealing rings are clung to the inner tube and the outer tube, a plurality of groups of outer slurry outlet holes are dug in the side wall of the outer tube, each group of outer slurry outlet holes are all arranged between the two inner tube sealing rings in the same group, a plurality of rubber sleeves are sleeved on the outer wall of the outer tube, and each rubber sleeve covers one group of outer slurry outlet holes.
The first grouting device comprises a pressure grouting mechanism, a three-way pipe and rollers, the outer pipe and the inner pipe of the pressure grouting mechanism are closed loops, one end of the three-way pipe is arranged on the outer side of the outer pipe, the other two ends of the three-way pipe are communicated with the inner pipe, the rollers are provided with a plurality of rollers, and the rollers are connected with the inner ring of the annular outer pipe.
The second grouting device comprises a pressure grouting mechanism, annular reinforcing steel bars, supporting blocks and connecting pipes, wherein the annular reinforcing steel bars are connected with a plurality of supporting blocks, the supporting blocks are distributed in a central symmetry mode by taking the axis of the annular reinforcing steel bars as the center, the pressure grouting mechanism is provided with a plurality of outer pipes and inner pipes of each pressure grouting mechanism are U-shaped, the two ends of each outer pipe are connected with the annular reinforcing steel bars, and the inner pipes of each pressure grouting mechanism are respectively communicated with the same connecting pipe through one communicating pipe.
Further, the supporting block is cylindrical, and the diameter of the supporting block is larger than the outer diameter of the rubber sleeve in the second grouting device.
Further, the pressure grouting mechanism is arranged in the annular steel bar, and the annular steel bar is connected with angle steel.
Further, the second grouting device comprises four pressure grouting mechanisms and four supporting blocks, and the pressure grouting mechanisms and the supporting blocks are distributed in a staggered mode.
Further, the annular steel bar is connected with angle steel.
Further, the method comprises the following steps:
step A, placing a pile planting machine in place: and (5) the pile planting machine is positioned at a designated pile position and centered in position.
Step B, hole guiding operation: and using slurry retaining walls to form holes to the designed depth by adopting a drilling device such as a diving drill.
And C, pile planting: and (3) implanting precast piles and grouting devices into the pore-forming slurry.
Step D, welding pile splicing: and pile heads of the upper section and the lower section are welded by electric welding.
E, grouting: grouting is carried out by using the implanted precast pile grouting device.
In the step C, the first grouting device is connected to the ground of the precast pile, the second grouting device is connected to the end of the pile body near the chassis, and the implanted precast pile grouting device and the precast pile are implanted into the pile hole.
Further, the step E includes: step a, grouting pile bottom and step b, grouting pile body.
Further, in the step a, grouting the pile bottom, injecting slurry into the second grouting device, grouting the pile bottom, in the step b, grouting the pile body, introducing slurry into the first grouting device, and simultaneously enabling the first grouting device to move upwards, so as to realize grouting the pile body.
Compared with the prior art, the implanted precast pile grouting device has the following advantages: the grouting device is used for carrying out the grouting on the pile body and the pile bottom in a targeted manner. The waste of pile replacement after full-section stirring of cement and soil in the pile hole in the prior art is avoided; because the implanted grouting device is adopted, the influence range of pressure grouting is larger than that of cement stirring in the prior art, and the formed effective pile diameter is larger than that of a stirring soil pile, the provided pile body bearing capacity is larger; in addition, the slurry is only used for wall protection pore-forming, secondary pore cleaning of a bored pile is not needed, a large amount of slurry replacement is avoided, and compared with the slurry used in the construction of the bored pile, the slurry is less and more environment-friendly; finally, the pile planting resistance of the invention in slurry is smaller than that in cement stirring soil, and the pile planting efficiency is higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a front view of a first grouting device according to the invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of a second grouting device according to the invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the pipe pile in use of the present invention;
FIG. 6 is a schematic view of the square pile structure when the invention is used;
FIG. 7 is a schematic view of a rectangular pile when the present invention is used;
fig. 8 is a schematic diagram illustrating the use of the first grouting device according to the present invention.
Reference numerals illustrate:
1-a rubber sleeve; 2-an outer tube; 3-going out pulp holes; 4-an inner tube; 5-an inner pipe sealing ring; 6-inner slurry outlet holes; 7-a three-way pipe; 8-a roller; 9-pile body; 10-ring-shaped steel bars; 11-supporting blocks; 12-connecting pipes; 13-angle steel; 14-communicating pipe; 15-pile bottom.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 4, the implantable precast pile grouting apparatus includes: the device comprises a pressure grouting mechanism, a first grouting device and a second grouting device;
the pressure grouting mechanism comprises a rubber sleeve 1, an outer pipe 2, an inner pipe 4 and an inner pipe sealing ring 5, wherein the inner pipe 4 is arranged in the outer pipe 2, a plurality of groups of inner pipe sealing rings 5 are arranged between the inner pipe 4 and the outer pipe 2, each group of inner pipe sealing rings 5 is provided with two, the two inner pipe sealing rings 5 in the same group are arranged at two ends of the inner pipe sealing rings 6, the inner pipe sealing rings 5 are tightly attached to the inner pipe 4 and the outer pipe 2, a plurality of groups of outer slurry outlet holes 3 are arranged on the side wall of the outer pipe 2, each group of outer slurry outlet holes 3 are arranged between the two inner pipe sealing rings 5 in the same group, a plurality of rubber sleeves 1 are sleeved on the outer wall of the outer pipe 2, and each rubber sleeve 1 covers one group of outer slurry outlet holes 3.
The first grouting device comprises a pressure grouting mechanism, a three-way pipe 7 and rollers 8, the outer pipe 2 and the inner pipe 4 of the pressure grouting mechanism are closed loops, one end of the three-way pipe 7 is arranged on the outer side of the outer pipe 2, the other two ends of the three-way pipe 7 are communicated with the inner pipe 4, the rollers 8 are provided with a plurality of rollers 8, and the rollers 8 are connected with the inner ring of the annular outer pipe 2.
The second grouting device comprises a pressure grouting mechanism, annular reinforcing steel bars 10, supporting blocks 11 and connecting pipes 12, the annular reinforcing steel bars 10 are connected with a plurality of supporting blocks 11, the supporting blocks 11 are distributed in a central symmetry mode by taking the axis of the annular reinforcing steel bars 10 as the center, the pressure grouting mechanism is provided with a plurality of outer pipes 2 and inner pipes 4 of each pressure grouting mechanism, two ends of each outer pipe 2 are connected to the annular reinforcing steel bars 10, and the inner pipes 4 of each pressure grouting mechanism are respectively communicated with the same connecting pipe 12 through a communicating pipe 14.
The supporting block 11 is cylindrical, and the diameter of the supporting block 11 is larger than the outer diameter of the rubber sleeve 1 in the second grouting device.
The pressure grouting mechanism is arranged in the annular steel bar 10, and the annular steel bar 10 is connected with angle steel 13.
The second grouting device comprises four pressure grouting mechanisms and four supporting blocks 11, and the pressure grouting mechanisms and the supporting blocks 11 are distributed in a staggered mode.
The annular steel bar 10 is connected with angle steel 13.
Step A, placing a pile planting machine in place: the pile planting machine is positioned at the designated pile position and centered in position;
step B, hole guiding operation: adopting a drilling device such as a diving drill and the like to drill holes to a designed depth by using a slurry dado method;
and C, pile planting: implanting precast piles and grouting devices into the pore-forming slurry;
step D, welding pile splicing: the pile heads of the upper section and the lower section are welded by electric welding;
e, grouting: grouting is carried out by using the implanted precast pile grouting device.
In the step C, the first grouting device is connected to the chassis of the precast pile, the second grouting device is connected to one end of the pile body close to the chassis, and the implanted precast pile grouting device and the precast pile are implanted into the pile hole together.
The step E comprises the following steps: step a pile bottom grouting and step b pile body grouting.
And a step a, grouting the pile bottom, namely grouting cement slurry into a second grouting device, grouting the pile bottom, a step b, grouting the pile body, introducing cement slurry into a first grouting device, and simultaneously enabling the first grouting device to move upwards so as to realize grouting the pile body.
As shown in fig. 5 to 8, the precast pile includes a pile body 9 and a pile bottom 15, and the pile bottom 15 is connected to the lower end of the pile body 9.
When the device is installed, a second grouting device is arranged on one side of a pile bottom 15 far away from a pile body 9, a connecting pipe 12 of the second grouting device is communicated with a disposable grouting pipe, the disposable grouting pipe penetrates through a hole in the middle of the pile bottom 15, the disposable grouting pipe penetrates out of the pile body 9, a first grouting device is connected to one end of the pile body 9 close to the pile bottom 15 and is connected with a roller 8 through a steel wire, the grouting pipe is communicated with a three-way pipe 7, and the first grouting device and the second grouting device are placed in a pit foundation together with a pipe pile; when the grouting device is used, firstly, grouting is carried out to the bottom of a tubular pile through a disposable grouting pipe and a second grouting device, after grouting is carried out into the inner pipe 4, the grouting enters the outer pipe 2 through the inner grouting hole 6, along with the gradual increase of pressure, the grouting jack-up rubber sleeve 1 enters a pit base, after grouting is stopped, the pressure outside the outer pipe 2 is larger than the pressure inside the outer pipe 2, the grouting tightly presses the rubber sleeve 1 on the outer pipe 2 to seal the outer grouting hole 3, the occurrence of countercurrent is avoided, the disposable grouting pipe is detached and placed into the pile body 9, grouting is carried out to the outer side of the pile body 9 through the grouting pipe and the first grouting device, the grouting enters the inner pipe 4 through the connecting pipe 12 and the communicating pipe 14, the grouting jack-up rubber sleeve 1 enters the pit base, the first grouting device is pulled upwards through a steel wire along with the rising of the grouting liquid level, the roller 8 is prevented from rubbing the first grouting device and the pile body 9, and the first grouting device is taken out after grouting is completed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. Implanted precast pile slip casting device, its characterized in that: comprising the following steps: the device comprises a pressure grouting mechanism, a first grouting device and a second grouting device;
the pressure grouting mechanism comprises rubber sleeves (1), an outer tube (2), an inner tube (4) and an inner tube sealing ring (5), wherein the inner tube (4) is arranged in the outer tube (2), a plurality of groups of inner grouting holes (6) are dug in the side wall of the inner tube (4), a plurality of groups of inner tube sealing rings (5) are arranged between the inner tube (4) and the outer tube (2), each group of inner tube sealing rings (5) is provided with two, two inner tube sealing rings (5) in the same group are arranged at two ends of one group of inner grouting holes (6), the inner tube sealing rings (5) are tightly attached to the inner tube (4) and the outer tube (2), a plurality of groups of outer grouting holes (3) are dug in the side wall of the outer tube (2), a plurality of rubber sleeves (1) are sleeved on the outer wall of the outer tube (2), and each rubber sleeve (1) covers one group of outer grouting holes (3);
the first grouting device comprises a pressure grouting mechanism, a three-way pipe (7) and rollers (8), wherein an outer pipe (2) and an inner pipe (4) of the pressure grouting mechanism are closed loops, one end of the three-way pipe (7) is arranged on the outer side of the outer pipe (2), the other two ends of the three-way pipe (7) are communicated with the inner pipe (4), the rollers (8) are provided with a plurality of rollers, and the rollers (8) are connected to the inner ring of the annular outer pipe (2);
the second grouting device comprises a pressure grouting mechanism, annular reinforcing steel bars (10), supporting blocks (11) and connecting pipes (12), wherein the annular reinforcing steel bars (10) are connected with a plurality of supporting blocks (11), the supporting blocks (11) are distributed in a central symmetry mode by taking the axis of the annular reinforcing steel bars (10) as the center, the pressure grouting mechanism is provided with a plurality of outer pipes (2) and inner pipes (4) of each pressure grouting mechanism, the two ends of the outer pipes (2) are connected with the annular reinforcing steel bars (10), and the inner pipes (4) of each pressure grouting mechanism are respectively communicated with the same connecting pipe (12) through one communicating pipe (14);
the supporting block (11) is cylindrical, and the diameter of the supporting block (11) is larger than the outer diameter of the rubber sleeve (1) in the second grouting device;
the pressure grouting mechanism is arranged in the annular steel bar (10), and the annular steel bar (10) is connected with angle steel (13);
the second grouting device comprises four pressure grouting mechanisms and four supporting blocks (11), and the pressure grouting mechanisms and the supporting blocks (11) are distributed in a staggered mode.
2. An implantable grouting process, which adopts the implantable precast pile grouting device as defined in claim 1, and is characterized in that: the method comprises the following steps:
step A, placing a pile planting machine in place: the pile planting machine is positioned at the designated pile position and centered in position;
step B, hole guiding operation: forming holes to the designed depth by adopting a submersible drill through a slurry wall protection method;
and C, pile planting: implanting precast piles and grouting devices into the pore-forming slurry;
step D, welding pile splicing: the pile heads of the upper section and the lower section are welded by electric welding;
e, grouting: grouting is carried out by using an implanted precast pile grouting device.
3. An implantable grouting process according to claim 2, wherein: in the step C, the first grouting device is connected to the chassis of the precast pile, the second grouting device is connected to one end of the pile body close to the chassis, and the implanted precast pile grouting device and the precast pile are implanted into the pile hole together.
4. An implantable grouting process according to claim 3, wherein: the step E comprises the following steps: and step A, grouting the pile bottom and step B, grouting the pile body.
5. An implantable grouting process according to claim 4, wherein: and (A) grouting the pile bottom, injecting cement slurry into a second grouting device, grouting the pile bottom, grouting the pile body, introducing cement slurry into a first grouting device, and simultaneously enabling the first grouting device to move upwards to realize grouting the pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810020891.5A CN108005079B (en) | 2018-01-09 | 2018-01-09 | Implanted precast pile grouting device and implanted grouting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810020891.5A CN108005079B (en) | 2018-01-09 | 2018-01-09 | Implanted precast pile grouting device and implanted grouting process |
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| Publication Number | Publication Date |
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| CN108005079A CN108005079A (en) | 2018-05-08 |
| CN108005079B true CN108005079B (en) | 2023-07-14 |
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| CN201810020891.5A Active CN108005079B (en) | 2018-01-09 | 2018-01-09 | Implanted precast pile grouting device and implanted grouting process |
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| CN117127615B (en) * | 2023-10-26 | 2024-01-23 | 天津建城基业管桩有限公司 | Precast pile grouting equipment and method for building |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184734A (en) * | 2013-03-19 | 2013-07-03 | 浙江天润建设有限公司 | Implanted and grouted compound pile and construction method |
| CN103243713A (en) * | 2013-05-07 | 2013-08-14 | 天津建城基业集团有限公司 | Method for planting prestressed pipe pile at one step |
| CN103603363A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting protruding sectional pile foundations and forming method |
| CN106013088A (en) * | 2016-06-07 | 2016-10-12 | 湖北天利建筑技术有限责任公司 | High-bearing-capacity drilling pile planting method |
| CN206784372U (en) * | 2017-04-19 | 2017-12-22 | 上海市建工设计研究总院有限公司 | Injection forming club-footed pile |
-
2018
- 2018-01-09 CN CN201810020891.5A patent/CN108005079B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184734A (en) * | 2013-03-19 | 2013-07-03 | 浙江天润建设有限公司 | Implanted and grouted compound pile and construction method |
| CN103243713A (en) * | 2013-05-07 | 2013-08-14 | 天津建城基业集团有限公司 | Method for planting prestressed pipe pile at one step |
| CN103603363A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting protruding sectional pile foundations and forming method |
| CN106013088A (en) * | 2016-06-07 | 2016-10-12 | 湖北天利建筑技术有限责任公司 | High-bearing-capacity drilling pile planting method |
| CN206784372U (en) * | 2017-04-19 | 2017-12-22 | 上海市建工设计研究总院有限公司 | Injection forming club-footed pile |
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