CN116397687A - Composite pile foundation - Google Patents
Composite pile foundation Download PDFInfo
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- CN116397687A CN116397687A CN202310610873.3A CN202310610873A CN116397687A CN 116397687 A CN116397687 A CN 116397687A CN 202310610873 A CN202310610873 A CN 202310610873A CN 116397687 A CN116397687 A CN 116397687A
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- pile
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- soil
- main pipe
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- 239000002131 composite material Substances 0.000 title claims abstract description 49
- 239000002689 soil Substances 0.000 claims abstract description 82
- 239000002002 slurry Substances 0.000 claims abstract description 46
- 239000004567 concrete Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims description 11
- 235000019353 potassium silicate Nutrition 0.000 claims description 7
- 230000001012 protector Effects 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 14
- 230000008901 benefit Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a composite pile foundation, which comprises a precast pile: the precast pile comprises a pile frame, wherein the pile frame comprises a keel frame and grouting flower pipes, each grouting flower pipe comprises a main pipe fitting and a plurality of branch pipe fittings, and each branch pipe fitting is connected with the main pipe fitting; all branch pipe pieces are sequentially arranged at equal intervals along the spiral track from top to bottom, and an included angle formed by two adjacent branch pipe pieces is 90 degrees; pouring concrete on the pile frame to form a precast pile; and (3) after the precast pile is driven into the original foundation soil, compacting and grouting are carried out from a grouting opening of the main pipe fitting, and the compacting and grouting slurry is sprayed out through the main pipe fitting and the branch pipe fitting, so that soil particles and cracks of the original foundation soil are glued into pile-side concreted soil bodies, and the pile-side concreted soil bodies and the precast pile form a composite pile foundation. Compared with the existing precast pile, the composite pile foundation effectively reduces the negative influence caused by the soil squeezing effect and improves the vertical bearing capacity and the horizontal bearing capacity of the composite pile foundation.
Description
Technical Field
The invention relates to the technical field of building pile foundations, in particular to a composite pile foundation.
Background
Pile foundations are one of the most important foundation forms in the field of building construction, and are mainly divided into precast piles and cast-in-place piles according to a construction method. The prefabricated pile is widely used in China at present, is prefabricated in prefabricated member factories or construction sites, is sunk into soil at a design position by pile sinking equipment, and is characterized by being firm and durable, not influenced by groundwater or humid environment, capable of bearing larger load, high in construction mechanization degree and fast in progress, and suitable for construction of different soil layers. The precast pile comprises a keel frame, and concrete is poured on the keel frame. Compared with the cast-in-place pile, the precast pile has the advantages of low production cost, small reinforcement ratio, simple construction, relatively low technical difficulty, short construction period and continuous construction of engineering. The construction of precast piles in loose soil and unsaturated filled soil has positive effects, and can play a role in encryption and bearing improvement; the saturated cohesive soil has negative effects, the soil squeezing effect of the precast pile can possibly lead to pile body floating, the vertical bearing capacity is reduced, sedimentation is increased, and peripheral houses and municipal facilities can be damaged. And the shear resistance of the precast pile is poor, the precast pile cannot be used for resisting large horizontal load, soil pressure is generated due to the fact that pile height differences exist at two sides of a building, and the pile body of a foundation is easily damaged in shearing. How to design a pile foundation structure capable of improving horizontal bearing capacity and vertical bearing capacity is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention solves the technical problem of providing a composite pile foundation capable of improving horizontal bearing capacity and vertical bearing capacity.
To achieve the above and other related objects, the present invention provides a composite pile foundation comprising: precast piles;
the precast pile comprises a pile frame, wherein the pile frame comprises a keel frame and a grouting flower pipe, and the grouting flower pipe comprises a main pipe fitting and a plurality of branch pipe fittings;
the axial direction of the main pipe fitting is vertical to the horizontal direction, the main pipe fitting is arranged in the center of the keel frame, the main pipe fitting is connected with the keel frame, the main pipe fitting is provided with a main pipe vertical channel, and the top of the main pipe vertical channel is provided with a grouting port;
each branch pipe piece is connected with the outer side face of the main pipe piece, the axial direction of each branch pipe piece is parallel to the horizontal direction, each branch pipe piece is provided with a branch pipe horizontal channel, and an input port of the branch pipe horizontal channel is communicated with the main pipe vertical channel; all the branch pipe pieces are sequentially arranged from top to bottom along the spiral track, and an included angle formed by the extending directions of two adjacent branch pipe pieces is 90 degrees; all the branch pipe pieces are arranged at equal intervals along the axial direction of the main pipe piece;
pouring concrete on the pile frame to form the precast pile; the output port of the branch pipe horizontal channel of each branch pipe piece is communicated with the outside of the precast pile;
and after the precast pile is driven into the original foundation soil, compacting grouting is carried out through a grouting opening of the main pipe fitting, grouting slurry for compacting grouting is sprayed out after passing through the main pipe fitting and the branch pipe fitting, the original foundation soil around the precast pile is subjected to splitting damage by the slurry, cracks generated by the splitting damage penetrate into the original foundation soil, soil particles of the original foundation soil and the cracks are glued into pile-side concretion soil body by the slurry, and the pile-side concretion soil body and the precast pile form a composite pile foundation.
Preferably, the slurry is a mixed solution of cement slurry and water glass, wherein the volume ratio of the cement slurry to the water glass is 1:1.
preferably, a groove is formed in the top surface of the precast pile.
Preferably, the wall of the groove is provided with a corner protector.
As described above, the composite pile foundation has the following beneficial effects:
grouting flower pipes are pre-embedded in the precast pile, the output ports of the branch pipe horizontal channels of the branch pipe fittings are slurry outlets, all the branch pipe fittings are sequentially arranged from top to bottom along a spiral track, and an included angle formed by the extending directions of two adjacent branch pipe fittings is 90 degrees; along the axial direction of the main pipe fitting, all the branch pipe pieces are arranged at equal intervals, and slurry outlets are reserved on the precast pile at intervals along the circumferential direction of the precast pile; the method comprises the steps that slurry is injected into a stratum in a segmented and uniform mode along a pile body of a precast pile through a pre-buried grouting pipe by utilizing a hydraulic instrument under a certain pressure, the slurry is used for splitting and damaging original foundation soil around the precast pile, cracks generated by the splitting and damaging of the slurry penetrate into the original foundation soil, soil grains and the cracks of the original foundation soil are glued to form pile-side solidified soil bodies through the slurry, and the pile-side solidified soil bodies and the precast pile form a composite pile foundation; in the process of penetrating the slurry into the undisturbed foundation soil, the slurry can compact the undisturbed foundation soil outside the precast pile;
the soil body is fixedly connected with the precast pile at the pile side to form a composite pile foundation; compared with the existing precast pile, the cross section of the composite pile foundation is greatly increased, the friction resistance between the precast pile in the composite pile foundation and the pile side concreted soil body is obviously improved, and the friction resistance between the composite pile foundation and the undisturbed foundation soil around the composite pile foundation is obviously improved;
the original foundation soil around the precast pile in the composite pile foundation is solidified to improve the mechanical property, and a step compound is formed between the precast pile, a part of the pile side solidified soil body, which is close to the precast pile, a part of the pile side solidified soil body, which is far away from the precast pile and the original foundation soil, so that the bearing capacity of the original foundation soil can be fully utilized, and the rigid precast pile is prevented from bearing most of the load;
besides consolidation of the undisturbed foundation soil around the precast pile, the undisturbed foundation soil between two adjacent composite pile foundations is extruded, and the soil bearing capacity between the two adjacent composite pile foundations is improved;
compared with the existing precast pile, the composite pile foundation effectively reduces the negative influence caused by the soil squeezing effect, improves the vertical bearing capacity and the horizontal bearing capacity of the composite pile foundation, and is beneficial to optimizing the pile number, the pile length, the pile diameter and the like of the precast pile so as to reduce the construction cost.
Drawings
Fig. 1 is a schematic perspective view of a precast pile of a composite pile foundation according to the present embodiment.
Fig. 2 is a schematic diagram showing a side internal structure of a precast pile of the composite pile foundation according to the present embodiment.
Fig. 3 is a schematic diagram showing a top structure of a precast pile of the composite pile foundation according to the present embodiment.
Fig. 4 is a schematic structural diagram of the composite pile foundation according to the present embodiment.
Description of the reference numerals
10. Undisturbed foundation soil
20. Pile side consolidation soil body
100. Precast pile
110. Dragon skeleton
120. Grouting pipe
121. Main pipe fitting
122. Support pipe fitting
130. Groove
140. Corner protector
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1 to 4, the composite pile foundation of the present embodiment includes: precast pile 100;
the precast pile 100 comprises a pile frame, wherein the pile frame comprises a keel frame 110 and a grouting flower pipe 120, and the grouting flower pipe 120 comprises a main pipe fitting 121 and a plurality of branch pipe fittings 122;
the axial direction of the main pipe fitting 121 is vertical to the horizontal direction, the main pipe fitting 121 is arranged in the center of the keel frame 110, the main pipe fitting 121 is connected with the keel frame 110, the main pipe fitting 121 is provided with a main pipe vertical channel, and the top of the main pipe vertical channel is provided with a grouting port;
each branch pipe fitting 122 is connected with the outer side surface of the main pipe fitting 121, the axial direction of each branch pipe fitting 122 is parallel to the horizontal direction, each branch pipe fitting 122 is provided with a branch pipe horizontal channel, and the input port of the branch pipe horizontal channel is communicated with the main pipe vertical channel; all the branch pipe pieces 122 are sequentially arranged from top to bottom along the spiral track, and an included angle formed by the extending directions of two adjacent branch pipe pieces 122 is 90 degrees; all the branch pipe pieces 122 are arranged at equal intervals along the axial direction of the main pipe piece 121;
pouring concrete on the pile frame to form a precast pile 100; the output port of the branch horizontal channel of each branch pipe part 122 is communicated with the outside of the precast pile 100;
after the precast pile 100 is driven into the original foundation soil 10, compacting grouting is carried out through a grouting opening of the main pipe fitting 121, slurry for compacting grouting is sprayed out after passing through the main pipe fitting 121 and the branch pipe fitting 122, the slurry generates splitting damage to the original foundation soil 10 around the precast pile 100, cracks generated by the splitting damage penetrate into the original foundation soil 10 along the splitting damage, the slurry enables soil particles and cracks of the original foundation soil 10 to be glued into a pile-side solidified soil body 20, and the pile-side solidified soil body 20 and the precast pile 100 form a composite pile foundation.
Grouting floral tubes 120 are pre-embedded in the precast pile 100, the output ports of the branch horizontal channels of the branch pipe members 122 are slurry outlets, all the branch pipe members 122 are sequentially arranged from top to bottom along a spiral track, and an included angle formed by the extending directions of two adjacent branch pipe members 122 is 90 degrees; along the axial direction of the main pipe fitting 121, all the branch pipe fittings 122 are arranged at equal intervals, and slurry outlets are reserved on the precast pile 100 at intervals along the circumferential direction of the precast pile; the slurry is injected into the stratum in a segmented and uniform manner along the pile body of the precast pile 100 by utilizing a hydraulic instrument through a certain pressure, the slurry generates splitting damage to the original foundation soil 10 around the precast pile 100, the slurry permeates into the original foundation soil 10 along the cracks generated by the splitting damage, loose soil particles and the cracks of the original foundation soil 10 are glued into a pile-side solidified soil body 20 through the slurry, namely the slurry is fully bonded with the original foundation soil 10 around the precast pile 100, and the pile-side solidified soil body 20 and the precast pile 100 form a composite pile foundation; the invention relates to a composite pile foundation which is combined and jointly borne by a precast pile 100 and a pile side consolidated soil body 20; in the process of penetrating into the undisturbed foundation soil 10, the slurry can compact the undisturbed foundation soil 10 outside the precast pile 100;
the soil body 20 and the precast pile 100 are fixedly connected at the pile side to form a composite pile foundation; compared with the existing precast pile 100, the cross section of the composite pile foundation is greatly increased, the frictional resistance between the precast pile 100 in the composite pile foundation and the pile side concretion soil body 20 is obviously improved, and the frictional resistance between the composite pile foundation and the undisturbed foundation soil 10 around the composite pile foundation is obviously improved;
the hardness of the precast pile 100 and the part, close to the precast pile 100, of the pile-side solidified soil body 20 is the hardest, the hardness of the part, far away from the precast pile 100, of the pile-side solidified soil body 20 is medium, and the hardness of the original foundation soil 10 is the softest; the original foundation soil 10 around the precast pile 100 in the composite pile foundation is solidified to improve the mechanical property, and the precast pile 100, the part of the pile side solidified soil body 20 close to the precast pile 100, the part of the pile side solidified soil body 20 far away from the precast pile 100 and the original foundation soil 10 form a hard, medium and soft step composite, so that the bearing capacity of the original foundation soil 10 can be fully utilized, and the rigid precast pile 100 is prevented from bearing most of the load;
besides consolidation of the undisturbed foundation soil 10 around the precast pile 100, the undisturbed foundation soil 10 between two adjacent composite pile foundations is extruded, and the soil bearing capacity between the two adjacent composite pile foundations is improved;
compared with the existing precast pile 100, the composite pile foundation effectively reduces the negative influence caused by the soil squeezing effect, improves the vertical bearing capacity and the horizontal bearing capacity of the composite pile foundation, and is beneficial to optimizing the pile number, the pile length, the pile diameter and the like of the precast pile 100 so as to reduce the construction cost.
In this embodiment, the grouting pipe 120 is made of PVC pipe. The keel frame 110 is made of steel bars. The grouting pipe 120 is in binding lap joint with the keel frame 110.
The slurry is a mixed solution of cement slurry and water glass, and the volume ratio of the cement slurry to the water glass in the slurry is 1:1. the slurry can be quickly solidified in water, the calculus strength is high, the formula of the slurry can ensure that the pile side concretion soil body 20 can quickly play a role while avoiding the waste of the slurry, the construction period can be shortened, and the slurry is nontoxic and pollution-free and has good environmental protection performance and economic benefit. In this embodiment, the cement slurry has a water cement ratio of 0.75, i.e., the weight ratio of water to cement in the cement slurry is 0.75:1.
The precast pile 100 for the composite pile foundation can be produced by using the existing mould of the original pile precast plant, and only the grouting pipe 120 is fixed on the reinforced concrete skeleton 110. The composite pile foundation has the advantages of stable structure, rapid and convenient construction, less investment and the like.
The grouting equipment used for the composite pile foundation can be used along with original pressure grouting equipment without developing equipment.
The precast pile 100 has a groove 130 formed on the top surface thereof, and the groove 130 is circular. The grouting port is positioned in the concrete recess 130 at the top of the precast pile 100 so that the grouting port is docked with external grouting equipment.
The groove wall of the groove 130 is provided with the corner protector 140, the corner protector 140 is in a circular ring shape, and the corner protector 140 is made of steel. The groove wall corner protector 140 of the groove 130 protects the groove 130 from damage during pile sinking construction.
The outer diameter of the trunk pipe fitting 121 is 76mm, and the outer diameter of the branch pipe fitting 122 is 50mm. The precast pile 100 is transported to the site after being precast and molded, and after pile sinking construction is completed, the slurry is uniformly injected into the stratum along the pile body section by adopting pressure grouting equipment through a grouting opening at the top of the precast pile 100 through a pre-buried grouting pipe 120. The slurry adopts a double-liquid mixed slurry of cement and water glass, the grouting force is not more than 1.0MPa, the viscosity of the slurry is 80-90 s, and the grouting flow is 7-10L/min.
In conclusion, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (4)
1. A composite pile foundation comprising: a precast pile (100);
the precast pile (100) comprises a pile frame, wherein the pile frame comprises a keel frame (110) and a grouting flower pipe (120), and the grouting flower pipe (120) comprises a main pipe fitting (121) and a plurality of branch pipe fittings (122);
the axial direction of the main pipe fitting (121) is vertical to the horizontal direction, the main pipe fitting (121) is arranged in the center of the keel frame (110), the main pipe fitting (121) is connected with the keel frame (110), the main pipe fitting (121) is provided with a main pipe vertical channel, and the top of the main pipe vertical channel is provided with a grouting port;
each branch pipe piece (122) is connected with the outer side surface of the main pipe piece (121), the axial direction of each branch pipe piece (122) is parallel to the horizontal direction, each branch pipe piece (122) is provided with a branch pipe horizontal channel, and an input port of the branch pipe horizontal channel is communicated with the main pipe vertical channel; all the branch pipe pieces (122) are sequentially arranged from top to bottom along a spiral track, and an included angle formed by the extending directions of two adjacent branch pipe pieces (122) is 90 degrees; all the branch pipe pieces (122) are arranged at equal intervals along the axial direction of the main pipe piece (121);
pouring concrete on the pile frame to form the precast pile (100); the output port of the branch horizontal channel of each branch member (122) is communicated with the outside of the precast pile (100);
after the precast pile (100) is driven into original foundation soil, compaction grouting is carried out through a grouting opening of the main pipe fitting (121), grouting slurry for compaction grouting is sprayed out after passing through the main pipe fitting (121) and the branch pipe fitting (122), the original foundation soil (10) around the precast pile (100) is subjected to splitting damage by the grouting slurry, cracks generated by the splitting damage penetrate into the original foundation soil (10) along the cracks, soil particles of the original foundation soil (10) are glued with the cracks by the grouting slurry to form a pile-side solidified soil body (20), and the pile-side solidified soil body (20) and the precast pile (100) form a composite pile foundation.
2. The composite pile foundation of claim 1, wherein: the slurry is a mixed solution of cement slurry and water glass, and the volume ratio of the cement slurry to the water glass in the slurry is 1:1.
3. the composite pile foundation of claim 1, wherein: the top surface of the precast pile (100) is provided with a groove (130).
4. The composite pile foundation of claim 1, wherein: and the wall of the groove (130) is provided with a corner protector (140).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310610873.3A CN116397687A (en) | 2023-05-26 | 2023-05-26 | Composite pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310610873.3A CN116397687A (en) | 2023-05-26 | 2023-05-26 | Composite pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116397687A true CN116397687A (en) | 2023-07-07 |
Family
ID=87007891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310610873.3A Pending CN116397687A (en) | 2023-05-26 | 2023-05-26 | Composite pile foundation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793027A (en) * | 2010-04-02 | 2010-08-04 | 孔超 | Core-grouted static pressure anchor rod pile |
| CN102605767A (en) * | 2012-03-27 | 2012-07-25 | 浙江大学城市学院 | Precast pile reserved with grouting pipe and piling process of precast pile |
| CN106087976A (en) * | 2016-08-01 | 2016-11-09 | 三峡大学 | A kind of prefabricated friction pile of new concrete and pile sinking process |
| CN107447754A (en) * | 2017-08-24 | 2017-12-08 | 天津港航工程有限公司 | The new plant stake technique of prefabricated tubular pile and the pile body formed |
| US20180010314A1 (en) * | 2015-01-23 | 2018-01-11 | Ferrovial Agroman, S.A. | A foundation pile, a grouting method for the said pile and a manufacturing method therefor |
| CN207079577U (en) * | 2017-07-04 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | Pile for prestressed pipe |
| CN109267567A (en) * | 2018-11-12 | 2019-01-25 | 同济大学浙江学院 | The steel-pipe pile and its casting craft of the convertible slip casting in a kind of end and stake side |
| CN212077914U (en) * | 2020-04-13 | 2020-12-04 | 北京中岩大地科技股份有限公司 | Tubular pile capable of improving lateral resistance |
| CN214940059U (en) * | 2021-06-23 | 2021-11-30 | 重庆大学 | Bionic structure soft soil foundation pile foundation |
-
2023
- 2023-05-26 CN CN202310610873.3A patent/CN116397687A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793027A (en) * | 2010-04-02 | 2010-08-04 | 孔超 | Core-grouted static pressure anchor rod pile |
| CN102605767A (en) * | 2012-03-27 | 2012-07-25 | 浙江大学城市学院 | Precast pile reserved with grouting pipe and piling process of precast pile |
| US20180010314A1 (en) * | 2015-01-23 | 2018-01-11 | Ferrovial Agroman, S.A. | A foundation pile, a grouting method for the said pile and a manufacturing method therefor |
| CN106087976A (en) * | 2016-08-01 | 2016-11-09 | 三峡大学 | A kind of prefabricated friction pile of new concrete and pile sinking process |
| CN207079577U (en) * | 2017-07-04 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | Pile for prestressed pipe |
| CN107447754A (en) * | 2017-08-24 | 2017-12-08 | 天津港航工程有限公司 | The new plant stake technique of prefabricated tubular pile and the pile body formed |
| CN109267567A (en) * | 2018-11-12 | 2019-01-25 | 同济大学浙江学院 | The steel-pipe pile and its casting craft of the convertible slip casting in a kind of end and stake side |
| CN212077914U (en) * | 2020-04-13 | 2020-12-04 | 北京中岩大地科技股份有限公司 | Tubular pile capable of improving lateral resistance |
| CN214940059U (en) * | 2021-06-23 | 2021-11-30 | 重庆大学 | Bionic structure soft soil foundation pile foundation |
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