CN217537045U - Hoisting platform capable of being rapidly constructed for land ultrahigh fans - Google Patents
Hoisting platform capable of being rapidly constructed for land ultrahigh fans Download PDFInfo
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- CN217537045U CN217537045U CN202221457014.2U CN202221457014U CN217537045U CN 217537045 U CN217537045 U CN 217537045U CN 202221457014 U CN202221457014 U CN 202221457014U CN 217537045 U CN217537045 U CN 217537045U
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Abstract
The utility model relates to a but hoisting platform of land superelevation fan quick construction. The hoisting device is suitable for hoisting the land ultrahigh fan and is applied to the field of new energy. The utility model provides a simple structure, short hoisting platform of land super high blower of construction cycle can be under construction fast for the main station district that hangs satisfies the bearing capacity requirement, in order to ensure land super high blower safety and stability and accomplish the hoist and mount. The utility model adopts the technical proposal that: the utility model provides a but hoisting platform of land superelevation fan rapid construction which characterized in that: the PHC precast pile is provided with a plurality of driven foundation foundations for foundation stabilization, a concrete beam platform is arranged at the top of the PHC precast pile, a road base plate is paved on the upper portion of the concrete beam platform, and the top of the PHC precast pile is arranged in the concrete beam platform and connected with the concrete beam platform through a connecting piece.
Description
Technical Field
The utility model relates to a but hoisting platform of land superelevation fan quick construction. The hoisting device is suitable for hoisting the land ultrahigh fan and is applied to the field of new energy.
Background
At present, china has become the country with the largest scale and the fastest growth rate of wind power generation in the world. Under the large background of global warming and increasing exhaustion of fossil energy, development and utilization of renewable energy are increasingly regarded by the international society. The state encourages to vigorously develop wind power projects and megawatt fans, so that the hoisting load weight and the hoisting height of the fans are increased day by day, and therefore a main hoisting station platform for ensuring safe completion of hoisting of land ultrahigh fans needs to be proposed urgently.
Meanwhile, compared with a water conservancy power generation project, the construction period of the wind power generation project is obviously shortened, and how to quickly and effectively complete the design and construction of the land ultrahigh-draught fan hoisting platform becomes the key of whether the wind power project can be synchronized with the power generation on schedule. Moreover, wind power development belongs to the field of new energy, and the wind power development belongs to national energy conservation and emission reduction measures, so that environmental protection in construction is concerned by the industry. How to reduce the environmental pollution in the construction and make it meet the environmental protection requirements of the country, the place and the industry is fully considered in the design intention.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: aiming at the problems, the hoisting platform which is simple in structure and short in construction period and can be used for rapidly constructing the land ultra-high draught fan is provided, so that the main hoisting station area meets the requirement of bearing capacity, and the land ultra-high draught fan can be safely and stably hoisted.
The utility model adopts the technical proposal that: the utility model provides a but hoisting platform of land superelevation fan rapid construction which characterized in that: the PHC precast pile has a plurality of driven foundation bases for foundation stabilization, a concrete beam platform is arranged at the top of the PHC precast pile, a road base plate is paved on the upper part of the concrete beam platform, and the top of the PHC precast pile is arranged in the concrete beam platform and connected with the concrete beam platform through a connecting piece.
A backfill layer used for improving the bearing capacity of the foundation at the lower part of the concrete beam platform is arranged between the lower part of the concrete beam platform and the foundation, and a non-woven geotextile used for enhancing the cohesive force between the backfill layer and the exposed surface of the foundation excavation is laid between the bottom of the backfill layer and the foundation.
And the backfill layer is sequentially paved with a rigid building garbage backfill region which is backfilled by compacting the building garbage layer by layer and a brick slag or gravel backfill layer which is backfilled by adopting the brick slag or gravel from bottom to top.
The rigid construction waste backfill area and the brick slag or gravel backfill layer are both paved at a virtual thickness of 30cm in a layered rolling manner, and the requirements on design compactness and bearing capacity are met.
The unit weight of the non-woven geotextile is not less than 300g/m 2 And the lengths of the overlapped parts are more than 30cm.
The tubular pile of the PHC precast pile is driven into the foundation bearing layer by 2.0D, and D is the diameter of the tubular pile of the PHC precast pile.
The concrete beam platform is formed by pouring concrete with the strength grade not lower than C40 after the main beam, the boundary beam and the secondary beam are bound.
One end of the connecting piece is arranged in the tubular pile of the PHC precast pile, the other end of the connecting piece is arranged in the concrete beam platform, and the connecting piece is provided with a phi 25 main reinforcement II, a phi 16 stirrup II and a steel supporting plate with the thickness of 3 mm;
one end of a main reinforcement II is bound by a plurality of rings of phi 16 stirrups II and then is arranged in the tubular pile of the PHC precast pile, the bottom of the main reinforcement II is fixed with the steel supporting plate, and the other end of the main reinforcement II is exposed out of the pipe orifice at the top of the PHC precast pile, is bent towards the outer side of the pipe orifice and then is poured in the concrete beam platform; the diameter of the steel supporting plate is smaller than the inner diameter of the PHC precast pile.
The core filling concrete of the PHC precast pile and the concrete of the concrete beam platform are poured simultaneously, and the strength of the core filling concrete is not lower than that of the concrete beam platform.
The road base plate is lifted by a fan.
The utility model has the advantages that:
the utility model is suitable for a super high blower hoist and mount on land, especially soft soil foundation have fine application prospect in the new forms of energy field, it is simple convenient to have the construction, shortens the time limit for a project by a wide margin, need not the slurrying to the pile foundation construction, and environmental protection is controllable, and economic suitability is strong, advantages such as safety and stability height.
The utility model discloses a construction cycle is short, adopts the PHC precast pile as ground reinforcement measure, and full play's precast pile can be in advance at precast yard processing and do not occupy the straight line time limit for a project, and the precast pile has the pore-forming duration short, efficient advantage in the construction, and the connecting piece simple structure who connects between precast pile and the concrete beam platform simultaneously takes into account the precast pile during the design and fills core concrete and concrete beam platform concrete and pour together, saving construction cycle by a wide margin.
The utility model discloses compare in the bored concrete pile, its PHC precast tubular pile belongs to crowded close stake, does not produce grout in the work progress, also need not the mud dado, can not take place mud, wastewater discharge and cause the environmental pollution problem, and then has reduced construction environmental pollution.
The utility model discloses a hoist and mount platform safe and reliable, the effective biography power of load accessible hoist and mount platforms such as crawler crane load, fan tower section of thick bamboo, impeller cabin, generator that super high fan hoist and mount in-process produced to the pile foundation, the incident such as toppling over, turning on one's side of effectively having avoided the hoist and mount in-process to take place.
Drawings
FIG. 1 is a schematic structural arrangement diagram of a wind turbine foundation and a hoisting platform in the embodiment.
Fig. 2 is a schematic plan layout view of the connection between the concrete beam platform and the PHC precast pile in the embodiment.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a schematic structural view of a main beam of the concrete beam platform in the embodiment.
Figure 5 is the boundary beam structure sketch map of concrete beam platform in the embodiment.
Figure 6 is the secondary beam structure schematic diagram of concrete beam platform in the embodiment.
Detailed Description
As shown in fig. 1-2, the embodiment provides a hoisting platform for rapid construction of a land ultra-high wind turbine, which is arranged on a single side of a wind turbine foundation, and is combined with an approach road, a hoisting large piece transportation area and a large piece equipment stacking area to select a proper hoisting position.
The hoisting platform of this embodiment has PHC precast tubular pile 6, non-woven geotechnical cloth 1, rigid building rubbish backfill zone 2, brick residue or gravel backfill layer 3, concrete beam platform 4 and road base plate 5 that arrange from bottom to top in proper order to and be used for the connecting piece that PHC precast pile 6 and concrete beam platform 4 are connected. The PHC precast tubular pile 6 is used for foundation reinforcement, a foundation bearing layer 2.0D (D is the pile foundation diameter of the tubular pile) is driven into the foundation bearing layer, the top of the PHC precast tubular pile 6 is fixedly connected with a concrete beam platform 4 through a connecting piece, and a 30 cm-thick road base plate 5 special for fan hoisting is laid on the upper part of the concrete beam platform 4, so that the ultrahigh fan hoisting main hoisting station platform is safe and reliable as a whole; a rigid building rubbish backfill area 2 and a brick residue or gravel backfill layer 3 for improving the bearing capacity of a foundation at the lower part of the concrete beam platform are arranged between the lower part of the concrete beam platform 4 and the foundation, and a non-woven geotextile 1 for enhancing the adhesion between the backfill layer and the exposed surface of foundation excavation (namely enhancing new and old soil layers) is laid between the bottom of the rigid building rubbish backfill area 2 and the foundation.
In this example, the unit weight of the nonwoven geotextile 1 is not less than 300g/m 2 The length of the mutual lap joint is more than 30cm; the rigid construction waste backfill area 2 is constructedBackfilling the construction waste by adopting brick slag or gravel after layered compaction and backfilling to form a brick slag or gravel backfill layer 3, wherein the brick slag or gravel backfill layer adopts a virtual paving thickness of 30cm for a rigid construction waste backfill layer, and is layered and rolled, and the requirements of design compactness and bearing capacity are met; the concrete beam platform 4 is provided with a main beam 4-1, an edge beam 4-2 and a secondary beam 4-3 which are bound by a phi main reinforcement I10 and a phi hoop reinforcement I11, and is poured by concrete with the strength grade not lower than C40 after the main beam 4-1, the edge beam 4-2 and the secondary beam 4-3 are bound, so that steel bar list making and background steel bar making are facilitated.
One end of the connecting piece is arranged in the tubular pile of the PHC precast pile 6, the other end of the connecting piece is arranged in the concrete beam platform 4, a phi 25 main reinforcement II7, a phi 25 stirrup II8 and a steel supporting plate 9 with the thickness of 3mm are adopted to form a framework, concrete is filled in the framework, the connection between the phi 25 main reinforcement II7 and the phi 25 stirrup II8 is firm and reliable, and the recommended strength of the filled concrete is not lower than C40; one end of a main reinforcement II7 is bound by a plurality of hooping reinforcements II8 and then is placed in the tubular pile of the PHC precast pile 6, the steel supporting plate 9 is fixed at the bottom of the main reinforcement II7, and the other end of the main reinforcement II7 is exposed out of the pipe orifice at the top of the PHC precast pile 6, is bent towards the outer side of the pipe orifice and then is poured in the concrete beam platform 4; the diameter of the steel supporting plate 9 is smaller than the inner diameter of the PHC precast pile 6. The core filling concrete of the PHC precast pile 6 and the concrete of the concrete beam platform 4 are poured simultaneously, and the strength of the core filling concrete is not lower than that of the concrete beam platform 4.
In the embodiment, the foundation bearing capacity is calculated and rechecked, the total weight G1 of the equipment is calculated according to the self weight of the heavy crane, the balance weight, the self weight of the hoisting rigging and the self weight of the road base plate, the maximum load value in the (impeller, engine room, generator and single tower) is obtained, the hoisting comprehensive coefficient R1 is selected, the contact area A1 of the road base plate and the ground is selected, and the value M of the foundation bearing capacity required by the design specification is selected. The actual value Mu of the bearing capacity of the foundation, and (Mu = G1R 1A 1) is not less than M, so that the bearing capacity of the foundation can meet the actual hoisting requirement.
The implementation of this embodiment can follow the following procedure: laying out a foundation, backfilling the foundation, positioning and laying out by a drilling machine, positioning a pile driver, pulling and pulling a pile, hammering a pile, splicing the pile, hammering the pile, stopping hammering the pile, cutting a pile head, placing a connecting piece, binding reinforcing steel bars of a concrete beam platform, pouring concrete of the platform beam, and placing a road base plate.
This example will be used in constructionThe hoisting platform is arranged on one side of the fan foundation, an appropriate hoisting position is selected by combining an approach road, hoisting large piece transportation and a large piece equipment stacking area, after the backfilling area finishes measurement and lofting, the non-woven geotextile 1 is paved on the combining surface of the new soil layer and the old soil layer, and the unit weight of the non-woven geotextile is not less than 300g/m 2 The length of the mutual lap joint is not less than 30cm, the rigid building rubbish 2, the brick slag or gravel backfill layer 3 are backfilled at the upper part of the mutual lap joint, and the compaction quality is ensured by rolling every 30cm of virtual pavement thickness.
In the embodiment, the PHC precast tubular pile 6 is driven into the bearing layer 2.0D (D is the pile foundation diameter of the tubular pile) by adopting a hammering method for foundation reinforcement. When the pile is driven by hammering method, the pile cap and liner are chosen, the inner diameter of pile cap is 20-30 mm greater than the diameter of pile, its depth is 300-400 mm, and the air outlet is set.
The top of the PHC precast tubular pile 6 is fixedly connected with the concrete beam platform 4 by a connecting piece, in order to ensure that the PHC precast tubular pile is rigidly connected with the concrete beam platform, core filling concrete is recommended to be poured simultaneously with concrete of the concrete beam platform, the binding of reinforcing steel bars of the concrete beam platform 4 needs to be finished before pouring, and the concrete strength grade of the concrete beam platform is not lower than C40. Then, a road base plate 5 is laid on the top of the concrete beam platform 4, and the load transmission of the upper part of the concrete beam platform is mainly borne by the concrete beam platform 4 and the road base plate 5 together.
The above only is the concrete embodiment of the utility model, the technical features of the utility model are not limited thereto, and any person skilled in the relevant field is in the field of the utility model, and the changes or modifications are all covered in the protection scope of the utility model.
Claims (10)
1. The utility model provides a but hoisting platform of land superelevation fan rapid construction which characterized in that: PHC precast pile (6) that a plurality of foundation foundations of beating into are used for the ground reinforcement have, PHC precast pile (6) top is provided with concrete beam platform (4), and concrete beam platform (4) upper portion has been laid roadbed board (5), PHC precast pile (6) top is arranged in concrete beam platform (4) in and with adopt the connecting piece to be connected between concrete beam platform (4).
2. The hoisting platform capable of being rapidly constructed for the land ultra-high draught fan according to claim 1, wherein: a backfill layer used for improving the bearing capacity of the foundation at the lower part of the concrete beam platform is arranged between the lower part of the concrete beam platform (4) and the foundation, and a non-woven geotextile (1) used for enhancing the cohesive force between the backfill layer and the exposed surface of the foundation excavation is laid between the bottom of the backfill layer and the foundation.
3. The hoisting platform capable of realizing rapid construction of the land ultra-high wind turbine as claimed in claim 2, wherein: the backfill layer is sequentially paved with a rigid construction waste backfill region (2) which is formed by compacting and backfilling construction waste layer by layer and a brick slag or gravel backfill layer (3) which is formed by backfilling brick slag or gravel from bottom to top.
4. The hoisting platform capable of rapidly constructing the land ultra-high wind turbine as claimed in claim 3, wherein: the rigid construction waste backfill region (2) and the brick slag or gravel backfill layer (3) are both paved at a virtual thickness of 30cm in a layering and rolling manner, and the requirements of design compactness and bearing capacity are met.
5. The hoisting platform capable of realizing rapid construction of the land ultra-high wind turbine as claimed in claim 2, wherein: the unit weight of the non-woven geotextile (1) is not less than 300g/m 2 And the lengths of the overlapped parts are more than 30cm.
6. The hoisting platform capable of realizing rapid construction of the land ultra-high wind turbine as claimed in claim 2, wherein: the tubular pile of the PHC precast pile (6) is driven into the foundation bearing layer by 2.0D, and D is the diameter of the tubular pile of the PHC precast pile.
7. The hoisting platform capable of rapidly constructing the land ultra-high wind turbine as claimed in claim 2, wherein: the concrete beam platform (4) is provided with a main beam (4-1), an edge beam (4-2) and a secondary beam (4-3) which are bound by a main reinforcement I (10) and a hoop reinforcement I (11), and is formed by pouring concrete with the strength grade not lower than C40 after the main beam (4-1), the edge beam (4-2) and the secondary beam (4-3) are bound.
8. The hoisting platform capable of realizing rapid construction of the land ultra-high wind turbine as claimed in claim 2, wherein: one end of the connecting piece is arranged in the tubular pile of the PHC precast pile (6), and the other end of the connecting piece is arranged in the concrete beam platform (4) and is provided with a main reinforcement II (7), a stirrup II (8) and a steel supporting plate (9);
one end of a main reinforcement II (7) is bound by a plurality of hooping reinforcements II (8) and then is arranged in the tubular pile of the PHC precast pile (6), the steel supporting plate (9) is fixed at the bottom of the main reinforcement II (7), and the other end of the main reinforcement II (7) is exposed out of the pipe orifice at the top of the PHC precast pile (6), is bent towards the outer side of the pipe orifice and is poured in the concrete beam platform (4); the diameter of the steel supporting plate (9) is smaller than the inner diameter of the PHC precast pile (6).
9. The hoisting platform capable of being rapidly constructed for the land ultra-high draught fan according to claim 1, wherein: the core filling concrete of the PHC precast pile (6) and the concrete of the concrete beam platform (4) are poured simultaneously, and the strength of the core filling concrete is not lower than that of the concrete beam platform (4).
10. The hoisting platform capable of rapidly constructing the land ultra-high wind turbine as claimed in claim 1, wherein: the road base plate (5) is a special road base plate for hoisting a fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221457014.2U CN217537045U (en) | 2022-06-08 | 2022-06-08 | Hoisting platform capable of being rapidly constructed for land ultrahigh fans |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221457014.2U CN217537045U (en) | 2022-06-08 | 2022-06-08 | Hoisting platform capable of being rapidly constructed for land ultrahigh fans |
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| CN217537045U true CN217537045U (en) | 2022-10-04 |
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| CN202221457014.2U Active CN217537045U (en) | 2022-06-08 | 2022-06-08 | Hoisting platform capable of being rapidly constructed for land ultrahigh fans |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992528A (en) * | 2022-11-30 | 2023-04-21 | 青岛理工大学 | Combined foundation for land wind turbine foundation |
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2022
- 2022-06-08 CN CN202221457014.2U patent/CN217537045U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992528A (en) * | 2022-11-30 | 2023-04-21 | 青岛理工大学 | Combined foundation for land wind turbine foundation |
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