CN114108600A - Fan foundation of prefabricated sheet pile assembly type connecting structure and construction method thereof - Google Patents
Fan foundation of prefabricated sheet pile assembly type connecting structure and construction method thereof Download PDFInfo
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- CN114108600A CN114108600A CN202111426074.8A CN202111426074A CN114108600A CN 114108600 A CN114108600 A CN 114108600A CN 202111426074 A CN202111426074 A CN 202111426074A CN 114108600 A CN114108600 A CN 114108600A
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
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- 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
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- 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
- E02D27/20—Caisson foundations combined with pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
- E02D5/12—Locking forms; Edge joints; Pile crossings; Branch pieces
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/14—Sealing joints between adjacent sheet piles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses a fan foundation of a prefabricated sheet pile assembly type connecting structure and a construction method thereof, wherein the fan foundation of the prefabricated sheet pile assembly type connecting structure comprises a plurality of prefabricated sheet piles, one sides of the prefabricated sheet piles are provided with active key grooves, the other sides of the prefabricated sheet piles are provided with passive key grooves, two adjacent prefabricated sheet piles are connected through active key groove bodies and passive key grooves, guide holes penetrating through the prefabricated sheet piles in the length direction are formed in the active key grooves and the passive key grooves, and pre-buried grouting channels are arranged at the joints of the prefabricated sheet piles; the prefabricated sheet pile assembly type connecting structure and the construction method thereof solve the structural connection problem between the prefabricated sheet piles, enable the prefabricated sheet piles to form a cylindrical structure whole, realize the integral stress of the cylindrical structure as an important structure of a fan foundation and improve the field construction efficiency.
Description
Technical Field
The invention relates to the field of wind power plant fan foundations, in particular to a fan foundation of a prefabricated sheet pile assembly type connecting structure and a construction method of the fan foundation.
Background
The wind turbine foundation is an important component part for building a wind power plant, and not only is the safe and reliable operation of the wind power plant concerned, but also the investment of the wind power plant is influenced. According to the adaptability of geological conditions, the existing common fan foundations comprise an extended fan foundation and a pile foundation, the extended foundation mainly utilizes the gravity of the extended foundation to resist the large bending moment load of an upper structure, and the extended foundation is adopted after foundation treatment is carried out on the extended foundation when the geological conditions are weak. The pile foundation is adopted under the condition that the natural foundation does not meet the requirements of bearing capacity, deformation and the like of a foundation structure, the vertical action of the pile is utilized to bear the bending moment load of an upper structure, and a bearing platform is arranged to be connected with a foundation pile to form an integral structure.
The prefabricated sheet pile assembled cylindrical fan foundation is characterized in that cement soil stirring is carried out in a prefabricated pile sinking area, then the prefabricated sheet piles are implanted, and after the prefabricated sheet piles are connected, an integral cylindrical structure is formed. The large bending moment of the fan is resisted by the combination of the cylindrical structure and the horizontal vertical resistance action of the soil body on the outer side. The structure and the construction method are suitable for most foundation conditions, particularly soft soil areas, and have the advantage of high construction efficiency. However, the connection treatment between the prefabricated sheet piles is often that the construction is difficult to control and the design concept requirement is met, the connection of the prefabricated sheet piles for the conventional foundation pit structure generally only needs to achieve the purpose of water stopping, and the requirement on the integrity of the structural connection is not high. The invention aims to solve the structural connection problem of the precast sheet pile.
Disclosure of Invention
The invention provides a fan foundation of a prefabricated sheet pile assembly type connecting structure and a construction method thereof, wherein two prefabricated sheet piles are connected through a shear key, one side of each prefabricated sheet pile is provided with a passive key slot, and the other side of each prefabricated sheet pile is provided with an active key slot; after the two precast sheet piles are positioned, constructed and sunk through the I-shaped steel grooves, the jack is used for pushing the active key groove to be higher than the ground structure, and the active key groove is inserted into the passive key groove of the preorder sheet pile; after the pushing insertion is completed, high-strength grouting is performed through the grouting channel pre-buried at one side of the driven key groove.
In order to achieve the purpose, the invention adopts the technical scheme that: a fan foundation of a prefabricated sheet pile assembly type connecting structure comprises a plurality of prefabricated sheet piles, wherein an active key groove is formed in one side of each prefabricated sheet pile, a passive key groove is formed in the other side of each prefabricated sheet pile, two adjacent prefabricated sheet piles are connected through an active key groove body and the passive key groove, guide holes penetrating along the length direction of the prefabricated sheet piles are formed in the active key grooves and the passive key grooves, and pre-buried grouting channels are formed in the joints of the prefabricated sheet piles; and reserving a gap at the joint of the joints of two adjacent precast sheet piles as a high-strength grouting area.
The top surface of the passive key groove is a concave key groove.
The sections of the active key groove and the passive key groove are concave-convex, the depth of the groove is not less than 10cm, and the vertical distance is not more than 3 times of the depth of the groove.
The clearance between the driving key groove and the driven key groove is 3-10 cm.
The driving key groove and the precast sheet pile are of an integral structure, the driving key groove is not less than 30cm higher than the ground, the concrete strength of the driving key groove is not lower than C60, and reinforcing steel bars are arranged in the driving key groove.
The embedded grouting channel is arranged on one side of the passive key groove on the precast sheet pile and comprises a horizontal channel and a vertical channel which are communicated with each other, the vertical channel penetrates through the whole precast sheet pile, and the horizontal channel penetrates through the protruding part of the whole passive key groove.
The grouting channel is a circular tube type, and the diameter of the grouting channel is not less than 2 cm.
A wind generating set adopts the fan foundation of the prefabricated sheet pile assembly type connecting structure.
The construction method of the fan foundation comprises the following steps:
positioning steel members are arranged between two adjacent precast sheet piles, after the first precast sheet pile is sunk, the positioning steel members are inserted, positioning sinking of the second precast sheet pile is carried out through the positioning steel members, a plane gap is reserved, and the positioning steel members are taken out when one precast sheet pile is sunk;
horizontally pushing the driving key groove, inserting the driving key groove into a driven key groove of the pre-arranged sheet pile, pushing until the pushing force cannot damage the concrete strength and the penetration is in place, and finally reserving a gap;
pouring high-strength grouting from the grouting channel to the joint of the two precast sheet piles; and finishing the construction of the foundation structure one by one.
The plane gap is not more than 20 cm; the gap is 3-10 cm; the positioning steel member is made of I-shaped steel, H-shaped steel or channel steel, the subsequent precast sheet pile is sunk through the positioning steel member, pressure grouting is not less than 2MPa, high-strength cement paste or polyethylene is used as a grouting material, and the strength is not less than 60 MPa.
Compared with the prior art, the invention has at least the following beneficial effects: by the prefabricated sheet pile assembly type connecting structure and the construction method thereof, the structural connection problem among the prefabricated sheet piles is solved, the prefabricated sheet piles form a cylindrical structure whole, the cylindrical structure is used as an important structure whole stress of a fan foundation, the stability of the fan foundation is improved, and the site construction efficiency is improved.
Drawings
Fig. 1 is a schematic top view of the structure of the present invention before insertion.
Fig. 2 is a schematic structural elevation after the penetration of the present invention.
Fig. 3 is a schematic structural diagram after the insertion of the present invention.
In the figure: 1-prefabricating sheet piles; 2-driving key groove body; 3-passive key slot; 4-positioning a steel member; 5-grouting a channel; 6-high-strength grouting area.
Detailed Description
The invention is explained in detail below with reference to the drawings and the detailed description.
A fan foundation of a prefabricated sheet pile assembly type connecting structure comprises a plurality of prefabricated sheet piles 1, wherein a driven key groove 3 is formed in one side of each prefabricated sheet pile 2, and an active key groove 2 is formed in one side of each prefabricated sheet pile 2; the two precast sheet piles 1 are connected through an active key groove body 2 and a passive key groove 3, after the two precast sheet piles 1 are subjected to positioning construction and are sunk through a positioning steel member 4, a jack is used for pushing the part of the active key groove 2, which is higher than the ground, and the active key groove 2 is inserted into the passive key groove 3 of the preorder sheet pile; after the pushing penetration is finished, a reserved gap at the joint of two adjacent precast sheet piles 1 is used as a high-strength grouting area, and high-strength grouting is poured through a grouting channel 5 pre-buried on one side of the passive key groove 3.
As an alternative embodiment, during the sinking process of the precast slab pile 1, the guide holes on the active keyway 2 and the passive keyway 3 are just capable of inserting the positioning steel member 4, which may be i-steel, H-steel or channel steel, wherein the i-steel may refer to fig. 1; when the sections of the guide holes on the active key slot 2 and the passive key slot 3 are spliced, the shapes of the guide holes are the same as the cross sections of I-shaped steel, H-shaped steel or channel steel; the illustration in fig. 1 and 2 is only schematic, and in actual construction, a set angle is formed between two adjacent precast sheet piles 1, and the pilot hole is also constructed along with the set angle.
The top surface of the passive key slot 3 should be a concave key slot.
The active key slot 2 and the precast sheet pile 1 are of an integral structure, refer to a concrete filled shadow area shown in fig. 2, are independently precast, and are synchronously sunk after being combined with the precast sheet pile 1 before construction; the active key slot 2 should be no less than 30cm above the ground. The concrete strength of the driving key slot 2 is not lower than C60, and reinforcing steel bars are arranged in the driving key slot 2.
The sections of the active key groove 2 and the passive key groove 3 are concave-convex, the depth of the groove is not less than 10cm, and the vertical distance is not more than 3 times of concave-convex size difference. The size of passive keyway 3 and initiative keyway 2 should be strict unsmooth corresponding, and the key on the initiative keyway 2 stretches into in the groove of passive keyway 3 promptly, 3 ~ 10 cm's space is left to the size between key and the groove. The active keyways 2 and the passive keyways 3 may be arranged in whole or in part in the vertical direction of the precast slab pile. A grouting channel 5 is pre-embedded at one side of a driven key groove 3 on the precast sheet pile 1, the pre-embedded grouting channel 5 comprises a horizontal channel and a vertical channel which are mutually communicated, the vertical channel penetrates through the whole precast sheet pile 1, the horizontal channel penetrates through the protruding part of the whole driven key groove 3,
the top surface of the passive key groove should be a concave key groove.
The driving key groove 2 is of an integral structure, is independently prefabricated, and is combined with a prefabricated sheet pile before construction and then is sunk. The active keyway should be no less than 30cm above the ground. The concrete strength of the active key slot is not lower than C60, and reinforcing steel bar configuration is carried out.
Referring to fig. 1, 2, and 3, a method for constructing a prefabricated sheet pile fabricated cylindrical fan foundation includes the steps of:
(1) set up location steel member 4 between two adjacent precast sheet piles 1, after having sunk first precast sheet pile 1, insert location steel member 4, carry out the location of second precast sheet pile 1 through location steel member 4 and sink, the planar gap is not more than 20cm, takes out location steel member 4 after sinking the completion.
(2) And horizontally pushing the driving key groove 2 by using a jack group, inserting the driving key groove 2 into a driven key groove 3 of the pre-arranged sheet pile, pushing until the pushing force cannot damage the concrete strength and the penetration is in place, and finally reserving a gap of 3-10 cm.
(3) A grouting channel 5 is pre-embedded in one side of the passive key slot 3 of the precast slab pile 1, the concave key slot and the convex key slot are both arranged, the diameter of the grouting channel 5 is not less than 2cm, the pressure grouting is not less than 2MPa, and a grouting material area 6 is shown in a diagonal shadow area in the attached drawing 2; the grouting material can be high-strength cement paste or chemical materials such as polyethylene and the like, and the strength is not lower than 60 MPa.
When the last two precast sheet piles 1 are constructed, a template is arranged at the gap between the two precast sheet piles 1, and two adjacent surfaces of the last two precast sheet piles 1 extend out of the dowel bars to be subjected to dowel bar pouring and tamping.
As an optional embodiment, two adjacent surfaces of the last two precast sheet piles 1 are subjected to roughening treatment and then subjected to bar inserting and pouring tamping.
Claims (10)
1. A fan foundation of a prefabricated sheet pile assembly type connecting structure is characterized by comprising a plurality of prefabricated sheet piles (1), wherein an active key groove (2) is formed in one side of each prefabricated sheet pile, a passive key groove (3) is formed in the other side of each prefabricated sheet pile, two adjacent prefabricated sheet piles (1) are connected through the active key groove body (2) and the passive key groove (3), guide holes penetrating through the prefabricated sheet piles (1) in the length direction are formed in the active key grooves (2) and the passive key grooves (3), and pre-buried grouting channels (5) are formed in the joints of the prefabricated sheet piles (1); and a gap is reserved at the joint of two adjacent precast sheet piles (1) to be used as a high-strength grouting area (6).
2. A wind turbine foundation of a precast sheet pile fabricated connection structure according to claim 1, wherein the top surface of the passive key groove is a concave key groove.
3. The fan foundation of the prefabricated sheet pile assembly type connecting structure according to claim 1, wherein the sections of the active key groove (2) and the passive key groove (3) are concave-convex, the depth of the grooves is not less than 10cm, and the vertical distance is not more than 3 times of the depth of the grooves.
4. The wind turbine foundation of a precast sheet pile fabricated connection structure according to claim 1, wherein a gap between the active key groove and the passive key groove is 3 to 10 cm.
5. The fan foundation of the prefabricated sheet pile assembly type connecting structure according to claim 1, wherein the active key groove (2) and the prefabricated sheet pile (1) are of an integral structure, the height of the active key groove (2) is not less than 30cm higher than the ground, the concrete strength of the active key groove (2) is not lower than C60, and reinforcing steel bars are arranged in the active key groove (2).
6. The wind turbine foundation of the prefabricated sheet pile assembly type connecting structure as claimed in claim 1, wherein the pre-buried grouting channel (5) is arranged on one side of the passive key slot (3) on the prefabricated sheet pile (1), the pre-buried grouting channel (5) comprises a horizontal channel and a vertical channel which are communicated with each other, the vertical channel penetrates through the whole prefabricated sheet pile (1), and the horizontal channel penetrates through the protruding portion of the whole passive key slot (3).
7. The wind turbine foundation of precast sheet pile fabricated connection structure according to claim 1, wherein the grouting channel (5) is a circular pipe type having a diameter of not less than 2 cm.
8. A wind turbine generator system, characterized by a wind turbine foundation using the precast sheet pile fabricated connection structure of any one of claims 1 to 7.
9. The construction method of the wind turbine foundation as claimed in any one of claims 1 to 7, comprising the steps of:
a positioning steel member (4) is arranged between two adjacent precast sheet piles (1), after the first precast sheet pile (1) is sunk, the positioning steel member (4) is inserted, the second precast sheet pile (1) is sunk in a positioning way through the positioning steel member (4), a plane gap is reserved, and the positioning steel member (4) is taken out when one precast sheet pile (1) is sunk;
horizontally pushing the driving key groove (2), inserting the driving key groove (2) into a driven key groove (3) of the pre-arranged sheet pile, pushing until the pushing force cannot damage the concrete strength and the penetration is in place, and finally reserving a gap;
pouring high-strength grouting from the grouting channel (5) to the joint of the two precast sheet piles (1); and finishing the construction of the foundation structure one by one.
10. The construction method according to claim 9, wherein the plane gap is not more than 20 cm; the gap is 3-10 cm; the positioning steel member (4) adopts I-shaped steel, H-shaped steel or channel steel, the subsequent precast sheet pile is sunk through the positioning steel member (4), the pressure grouting is not less than 2MPa, the grouting material adopts high-strength cement paste or polyethylene, and the strength is not less than 60 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426074.8A CN114108600B (en) | 2021-11-26 | 2021-11-26 | Fan foundation with prefabricated sheet pile assembly type connecting structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426074.8A CN114108600B (en) | 2021-11-26 | 2021-11-26 | Fan foundation with prefabricated sheet pile assembly type connecting structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN114108600A true CN114108600A (en) | 2022-03-01 |
| CN114108600B CN114108600B (en) | 2024-03-29 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205134353U (en) * | 2015-11-17 | 2016-04-06 | 西安建筑科技大学 | Prevent frostbite and pull out and melt a heavy assembly type ventilation stake foundation structure |
| CN206752446U (en) * | 2017-05-19 | 2017-12-15 | 青岛瑞源工程集团有限公司 | A kind of prefabricated sheet pile |
| CN110747903A (en) * | 2019-10-28 | 2020-02-04 | 湖北建科国际工程有限公司 | Porous frame bridge and assembling construction method thereof |
| CN210797533U (en) * | 2019-07-16 | 2020-06-19 | 武汉谦诚桩工科技股份有限公司 | Assembled prestressing force underground continuous wall structure |
| CN111851567A (en) * | 2020-08-20 | 2020-10-30 | 天津大学 | Wind power foundation newly built or expanded on soft foundation shallow covering layer and construction method thereof |
| CN112854288A (en) * | 2021-03-11 | 2021-05-28 | 同济大学建筑设计研究院(集团)有限公司 | Fan cylindrical foundation consisting of underground continuous walls and construction method |
| CN216428232U (en) * | 2021-11-26 | 2022-05-03 | 华能清能通榆电力有限公司 | Prefabricated sheet pile assembled connection structure's fan foundation and wind generating set |
-
2021
- 2021-11-26 CN CN202111426074.8A patent/CN114108600B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205134353U (en) * | 2015-11-17 | 2016-04-06 | 西安建筑科技大学 | Prevent frostbite and pull out and melt a heavy assembly type ventilation stake foundation structure |
| CN206752446U (en) * | 2017-05-19 | 2017-12-15 | 青岛瑞源工程集团有限公司 | A kind of prefabricated sheet pile |
| CN210797533U (en) * | 2019-07-16 | 2020-06-19 | 武汉谦诚桩工科技股份有限公司 | Assembled prestressing force underground continuous wall structure |
| CN110747903A (en) * | 2019-10-28 | 2020-02-04 | 湖北建科国际工程有限公司 | Porous frame bridge and assembling construction method thereof |
| CN111851567A (en) * | 2020-08-20 | 2020-10-30 | 天津大学 | Wind power foundation newly built or expanded on soft foundation shallow covering layer and construction method thereof |
| CN112854288A (en) * | 2021-03-11 | 2021-05-28 | 同济大学建筑设计研究院(集团)有限公司 | Fan cylindrical foundation consisting of underground continuous walls and construction method |
| CN216428232U (en) * | 2021-11-26 | 2022-05-03 | 华能清能通榆电力有限公司 | Prefabricated sheet pile assembled connection structure's fan foundation and wind generating set |
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| Publication number | Publication date |
|---|---|
| CN114108600B (en) | 2024-03-29 |
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