CN205046574U - Enlarged footing prestressed anchorage pole wind turbine foundation device - Google Patents
Enlarged footing prestressed anchorage pole wind turbine foundation device Download PDFInfo
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- CN205046574U CN205046574U CN201520815071.7U CN201520815071U CN205046574U CN 205046574 U CN205046574 U CN 205046574U CN 201520815071 U CN201520815071 U CN 201520815071U CN 205046574 U CN205046574 U CN 205046574U
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- dwang
- enlarged footing
- pin
- anchor pole
- metal
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Abstract
The utility model discloses an enlarged footing prestressed anchorage pole wind turbine foundation device relates to the medium -and -large -sized wind generating set fixation technology field of construction project. This device is: evenly be provided with drilling and expansion chamber in the circumference of basic cushion cap, be provided with the steel casing pipe in every drilling, be provided with the stock in the steel casing pipe, in the stock bottom through the sliding pin, connected gradually metal connecting rod, gone up dwang and dwang down, formation enlarged footing from untie -sell and fixed pin, the casting has the high -strength concrete in the drilling of basic cushion cap and expansion chamber, there is the metal foundation ring and excels in the nut at the top of steel casing pipe cover. The utility model discloses the basis is firm, saves the construction investment, and the construction progress is fast, and especially the enlarged footing has bigger vertical withdrawal resistance, can resist the huge moment of flexure effect that a fan upper portion tower section of thick bamboo transmitted.
Description
Technical field
The utility model relates to construction project medium-and-large-sized wind power generating set technique for fixing field, particularly relates to a kind of enlarged footing prestressed anchor blower foundation device.
Background technology
Land wind energy turbine set installation scale about 8,000 ten thousand kW, China's land wind energy resources exploitable deposit about 23.8 hundred million kW that current China is built.The wind energy turbine set of each installation scale 50,000 kW, the base concrete consumption of C35 ~ C40 intensity is about 13750m
3.Meeting under the stable precondition of underlying security, adopting the basic build optimized, a large amount of base concrete engineering quantitys can be saved.In addition, for the large-scale wind driven generator concrete gravity type brace foundation adopting on-the-spot structure more, or anchor pole gravity type foundation, these foundation construction operations are lengthy and jumbled, construction lasts length, and concrete and amount of reinforcement are very large, and inside configuration material is all disposable, structure durability is poor, along with the lengthening safety of service time reduces greatly.In the reinforcing to some existing wind energy turbine set concrete foundations, boring is needed to squeeze into prestressed bolt construction.And existing prestressed bolt needs the anchor slab anchoring by bottom, use when being not suitable for boring.Therefore, be necessary that developing one can resist huge vertical pull out force and moment of flexure, takes into account the fan foundation structure of economic unfailing performance simultaneously.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming prior art existence, provides a kind of enlarged footing prestressed anchor blower foundation device, for the superstructure of fixing Large-scale Wind Turbines, for land wind energy turbine set safe operation provides technical guarantee.
The purpose of this utility model is achieved in that
One, enlarged footing prestressed anchor blower foundation device (abbreviation device)
This device comprises foundation platform, anchor pole, high-strength nut, metal foundation ring, steel sleeve, high-strength concrete, metal link rod, upper dwang, lower dwang, sliding pin, follower pin, steady pin and enlarged footing;
Its position and annexation are:
In the circumference of foundation platform, be evenly provided with boring and expansion chamber, in each boring, be provided with steel sleeve;
In steel sleeve, be provided with anchor pole, anchor pole bottom to be connected with in turn by sliding pin, follower pin and steady pin metal link rod, on dwang and lower dwang, form enlarged footing, enlarged footing is in expansion chamber;
High-strength concrete is cast with in the boring and expansion chamber of foundation platform;
On the top of steel sleeve, cover has metal foundation ring and high-strength nut.
Two, enlarged footing prestressed anchor blower foundation device construction method (abbreviation method)
This method comprises the following steps:
1. in the on-site land survey, the leveling place that need construction, basis of formation cushion cap, and boring is to the suitable degree of depth, gets out one section of expansion chamber as requested again in the bottom of boring with special enlarged footing drill bit;
2. anchor pole and prefabricated enlarged footing part are fixed together by the internal thread of metal link rod, put into the enlarged footing under anchor pole and folded state, due to the restriction of internal diameter of holing in this process, upper dwang and lower dwang cannot strut to deployed condition, maintain folded state;
3. wait the region, expansion chamber that anchor pole is in place, enlarged footing enters foot of hole, upper dwang and lower dwang rely on gravity automatically to strut to deployed condition;
4. be enclosed within anchor pole by steel sleeve, the bottom of steel sleeve is supported in the top of metal link rod; From bottom expansion chamber, build strong concrete, until steel sleeve top between boring and steel sleeve successively;
by prefabricated metal foundation ring through anchor pole, be positioned on the strong concrete of building, and by high-strength nut, anchor pole and metal foundation ring be fixed as one, ensure that the end face of metal discharge ring end face and foundation platform is on a horizontal plane;
6., after strong concrete reaches requirement the length of time, stretch-draw Shi Hanzhang is carried out to the anchor pole stretching out foundation platform upper surface, thus concrete is under pressure, improve the stability of whole foundation structure.
The utility model has following advantages and good effect:
1. enlarged footing expanded angle is larger, compared with general concrete anchor pole (rope) basis, has larger vertically pulling-resistant power, can resist the huge bending moment effect that blower fan upper column cylinder transmits;
2. only need in boring concreting, therefore concrete amount is few, saves construction investment; Anchor pole and enlarged footing part are all prefabricated, can outside hole assembled good after put into hole together, greatly accelerate construction speed;
3. by high-strength nut, enlarged footing anchor pole and metal foundation ring are connected as a single entity, and use firm sleeve pipe anchor pole and concrete separating to be come, to ensure the stretch-draw effect of prestressed anchor;
4. to anchor pole Shi Hanzhang, by the enlarged footing of anchor pole bottom, pull out force and moment of flexure are delivered in the wider Rock And Soil of surrounding, the static(al) allowing ground and concrete foundation structure shared blower fan superstructure transmit and dynamic loading.
In a word, the utility model is built on the rock, cost saving, and construction speed is fast, and especially enlarged footing has larger vertically pulling-resistant power, can resist the huge bending moment effect that blower fan upper column cylinder transmits.
Accompanying drawing explanation
Fig. 1 is the structural front view of this device;
Fig. 2 is the structure top view of this device.
In figure:
1-foundation platform, 1.1-boring, 1.2-expansion chamber;
2-anchor pole;
3-high-strength nut;
4-metal foundation ring;
5-steel sleeve;
6-high-strength concrete;
7-metal link rod, 7.1-sliding tray, 7.2-holddown groove;
8-upper dwang;
9-lower dwang;
10-sliding pin;
11-follower pin;
12-steady pin;
13-enlarged footing.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
One, device
1, overall
As Fig. 1,2, this device comprises foundation platform 1, anchor pole 2, high-strength nut 3, metal foundation ring 4, steel sleeve 5, high-strength concrete 6, metal link rod 7, upper dwang 8, lower dwang 9, sliding pin 10, follower pin 11, steady pin 12 and enlarged footing 13;
Its position and annexation are:
In the circumference of foundation platform 1, be evenly provided with boring 1.1 and expansion chamber 1.2, in each boring 1.1, be provided with steel sleeve 5;
In steel sleeve 5, be provided with anchor pole 2, anchor pole 2 bottom to be connected with in turn by sliding pin 10, follower pin 11 and steady pin 12 metal link rod 7, on dwang 8 and lower dwang 9, form enlarged footing 13, enlarged footing 13 is in expansion chamber 1.2;
High-strength concrete 6 is cast with in the boring 1.1 and expansion chamber 1.2 of foundation platform 1;
On the top of steel sleeve 5, cover has metal foundation ring 4 and high-strength nut 3.
2, functional part
The functional part of this device is Common parts or standarized component.
1) foundation platform 1
Foundation platform 1 is the circle of a leveling, is evenly provided with boring 1.1, the bottom of boring 1.1 is provided with expansion chamber 1.2 in circumference, and the specification (aperture, the degree of depth and spacing) of boring is determined according to field engineering geological condition and design fan capacity.
Its function is the cushion cap of whole base apparatus.
2) anchor pole 2
Anchor pole 2 is a kind of fining twisted steel bar; Its bottom is provided with external screw thread, and upper surface about the 15cm of foundation platform 1 is stretched out on its top.
Its function is the stretch-draw in later stage and the splicing with blower fan lower flange.
3) high-strength nut 3
High-strength nut 3 is a kind of Common parts or standarized component.
Its function is tightly fixed as a whole by anchor pole 2 and metal foundation ring 4.
4) metal foundation ring 4
Metal foundation ring 4 is a kind of metal ring, is embedded in the end face of foundation platform 1; It is evenly provided with circular hole, and circular hole quantity is the same with anchor pole 2 quantity, and Circularhole diameter and anchor pole 2 diameter matches, the external diameter of annulus is consistent with the external diameter of foundation platform 1.
Its function is fixing anchor bar 2.
5) steel sleeve 5
Steel sleeve 5 is hollow elongated tubular, and internal diameter is greater than anchor pole 2 external diameter 3 ~ 5 millimeters.
Its function is: anchor pole 2 is separated with high-strength concrete 6.
6) high-strength concrete 6
High-strength concrete 6 is the concrete of C35-C40 label, is cast between boring 1.1 and steel sleeve 5, and expansion chamber 1.2 is inner.
Its function is basis of formation structure.
7) metal link rod 7
Metal link rod 7 is a kind of Metallic rod, and its external diameter is slightly larger than the diameter of anchor pole 2, and its top is with the internal thread with anchor pole 2 external screw thread adaptation, and its upper end is provided with sliding tray 7.1, and its lower end is provided with holddown groove 7.2;
Its function is that top connects anchor pole 2, and upper end connects dwang 8, dwang 9 under lower termination.
8) upper dwang 8
Upper dwang 8 is the live metal bar that there is through hole at splay two ends for former and later two, and its top utilizes sliding pin 10 to be connected with the sliding tray 7.1 of metal link rod 7, and its lower end, left and right is connected with lower dwang 9 by follower pin 11;
Its function forms enlarged footing 13, the load that the transmission of shared superstructure is got off together with lower dwang 9.
9) dwang 9 under
Lower dwang 9 has the live metal bar of through hole for two ends that former and later two are herringbone, and its bottom utilizes steady pin 12 to be connected with the holddown groove 7.2 of metal link rod 7, and its upper end, left and right is connected with upper dwang 8 by follower pin 11;
Its function forms enlarged footing 13, the load that the transmission of shared superstructure is got off together with upper dwang 8.
10) sliding pin 10
Sliding pin 10 is prefabricated metallic pin;
Its function is for connection metal connecting rod 7 and upper dwang 8.
11) follower pin 11
Follower pin 11 is prefabricated metallic pin;
Its function is for connecting upper dwang 8 and lower dwang 9.
12) steady pin 12
Steady pin 12 is prefabricated metallic pin;
Its function is for connecting lower dwang 9 and metal link rod 7.
13) enlarged footing 13
Be made up of metal link rod 7, upper dwang 8, lower dwang 9, sliding pin 10, follower pin 11 and steady pin 12.
3, work base reason:
This device forms primarily of foundation platform 1, anchor pole 2, metal foundation ring 4, high-strength concrete 6 and anchor pole enlarged footing 13; Enlarged footing 13 is formed by connecting by sliding pin 10, follower pin 11 and steady pin 12 by metal link rod 7, upper dwang 8 and lower dwang 9; Sliding pin 12 freely up and down can slide in the sliding tray 7.1 of metal link rod 7; In free deployed condition, the enlarged footing 13 that upper and lower dwang forms two rhombuses is symmetrically fixed on the both sides of metal link rod 7; The boring 1.1 of bottom with expansion chamber 1.2 will be together put into after the internal thread compact siro spinning technology at the external screw thread of anchor pole 2 bottom and metal link rod 7 top,, enlarged footing 13 in place Deng anchor pole 2 enters region, expansion chamber 1.2, and upper dwang 8 and lower dwang 9 rely on gravity automatically to strut to deployed condition; Steel sleeve 5 is placed on after on anchor pole 2, from the bottom of hole, upwards builds strong concrete 6 successively, be full of expansion chamber 1.2 bottom boring 1.1 until the top of steel sleeve 2; After concrete casting is good, above all parts all water and are filled in concrete, become the permanent sections of this base apparatus; Reach after requirement until concrete strength and metal foundation ring 4 is installed, discharge ring 4 is provided with the circular hole matched with flange bolt hole at the bottom of blower fan tower barrel, several anchor pole 2 identical with circular hole quantity is fixed as one with metal foundation ring 4, and stretch out metal foundation ring 4 upper surface certain distance, utilize tensioner to anchor pole 2 Shi Hanzhang thus concrete is under pressure, improving the stability of whole base apparatus structure; The section of stretching out of anchor pole 2 in the future and blower fan tower barrel lower flange fixed by high-strength nut 3, blower fan tower barrel lower flange is provided by blower fan manufacturer, is mode standard, blower fan manufacturer have detailed technology explanation and drawing for reference.
Claims (2)
1. an enlarged footing prestressed anchor blower foundation device, is characterized in that:
Comprise foundation platform (1), anchor pole (2), high-strength nut (3), metal foundation ring (4), steel sleeve (5), high-strength concrete (6), metal link rod (7), upper dwang (8), lower dwang (9), sliding pin (10), follower pin (11), steady pin (12) and enlarged footing (13);
Its position and annexation are:
In the circumference of foundation platform (1), be evenly provided with boring (1.1), in each boring (1.1), be provided with steel sleeve (5);
Anchor pole (2) is provided with in steel sleeve (5), metal link rod (7), upper dwang (8) and lower dwang (9) is connected with in turn by sliding pin (10), follower pin (11) and steady pin (12) in anchor pole (2) bottom, form enlarged footing (13), enlarged footing (13) is in expansion chamber (1.2);
High-strength concrete (6) is cast with in the boring (1.1) and expansion chamber (1.2) of foundation platform (1);
On the top of steel sleeve (5), cover has metal foundation ring (4) and high-strength nut (3).
2., by enlarged footing prestressed anchor blower foundation device according to claim 1, it is characterized in that:
Described enlarged footing is made up of metal link rod (7), upper dwang (8), lower dwang (9), sliding pin (10), follower pin (11) and steady pin (12);
Metal link rod (7) is a kind of Metallic rod, and its external diameter is slightly larger than the diameter of anchor pole (2), and its top is with the internal thread with anchor pole (2) external screw thread adaptation, and its upper end is provided with sliding tray (7.1), and its lower end is provided with holddown groove (7.2);
Upper dwang (8) is the live metal bar that there is through hole at splay two ends for former and later two, its top utilizes sliding pin (10) to be connected with the sliding tray (7.1) of metal link rod (7), and its lower end, left and right is connected with lower dwang (9) by follower pin (11);
Lower dwang (9) has the live metal bar of through hole for two ends that former and later two are herringbone, its bottom utilizes steady pin (12) to be connected with the holddown groove (7.2) of metal link rod (7), and its upper end, left and right is connected with upper dwang (8) by follower pin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815071.7U CN205046574U (en) | 2015-10-20 | 2015-10-20 | Enlarged footing prestressed anchorage pole wind turbine foundation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815071.7U CN205046574U (en) | 2015-10-20 | 2015-10-20 | Enlarged footing prestressed anchorage pole wind turbine foundation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205046574U true CN205046574U (en) | 2016-02-24 |
Family
ID=55340171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520815071.7U Expired - Fee Related CN205046574U (en) | 2015-10-20 | 2015-10-20 | Enlarged footing prestressed anchorage pole wind turbine foundation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205046574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220706A (en) * | 2015-10-20 | 2016-01-06 | 中国科学院武汉岩土力学研究所 | Enlarged footing prestressed anchor blower foundation system and construction method thereof |
| CN110735444A (en) * | 2019-10-17 | 2020-01-31 | 湖南砼联科技有限责任公司 | vertical anchor self-protection type fan foundation and construction method thereof |
-
2015
- 2015-10-20 CN CN201520815071.7U patent/CN205046574U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220706A (en) * | 2015-10-20 | 2016-01-06 | 中国科学院武汉岩土力学研究所 | Enlarged footing prestressed anchor blower foundation system and construction method thereof |
| CN105220706B (en) * | 2015-10-20 | 2017-03-22 | 中国科学院武汉岩土力学研究所 | Fan foundation system with expanded-feet and pre-stressed anchors and construction method for fan foundation system |
| CN110735444A (en) * | 2019-10-17 | 2020-01-31 | 湖南砼联科技有限责任公司 | vertical anchor self-protection type fan foundation and construction method thereof |
| CN110735444B (en) * | 2019-10-17 | 2021-09-10 | 湖南砼联科技有限责任公司 | Vertical anchor self-protection type fan foundation and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20201020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |