CN106436736A - Fan foundation large-size concrete construction method - Google Patents
Fan foundation large-size concrete construction method Download PDFInfo
- Publication number
- CN106436736A CN106436736A CN201610598478.8A CN201610598478A CN106436736A CN 106436736 A CN106436736 A CN 106436736A CN 201610598478 A CN201610598478 A CN 201610598478A CN 106436736 A CN106436736 A CN 106436736A
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 235000011194 food seasoning agent Nutrition 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a fan foundation large-size concrete construction method for curing after casting. Concrete is quickly cast, and cannot generate the layered cracking problem after casting. After the concrete is cast, the curing time is reasonably designed; and the temperature/humidity detection is performed in the curing period to guarantee the temperature and the humidity to reach set requirements in the curing period, so that the cured concrete is fully watered, the strength of the concrete is gradually improved, the shrinkage crack of the concrete caused by wind and sun is prevented, and the cast concrete is guaranteed to reach the designed strength in the stated age.
Description
Technical field
The present invention relates to Construction of Wind Power field, specifically a kind of construction method of blower foundation mass concrete.
Background technology
It is known that the Chinese government makes promise to international community in Copenhagen climate change conference in 2009 arriving
The year two thousand twenty unit GDP CO2 emissions declined 40%～50% than 2005, and non-fossil energy will meet this
The energy demand of state 15%, this is proposed unprecedented expectation to China's future development scale of wind-powered electricity generation and progress etc., accelerates wind
Can resource using with exploitation will become the Important Action realizing the strategy of sustainable development in China's considerably long one period, arrive
The wind-powered electricity generation installation of the year two thousand twenty China reaches 2.3 hundred million KW；Provide development environment good greatly and opportunity for our Wind Power Developments.
The core of wind-powered electricity generation conversion is blower fan, and the support of blower fan is supported using tower, and the base support of tower adopts base
Plinth ring is supported, and the most important step of foundation ring construction is the pouring construction of base mass concrete.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of construction method of blower foundation mass concrete it is ensured that pouring
Build the abundant aquation of the concrete after maintenance, concrete strength gradually increases, it is to avoid concrete is exposed to the weather etc. and to be produced drying shrinkage and split
Seam is it is ensured that the concrete pouring reaches design requirement intensity within regulation age.
The technical scheme is that：
A kind of construction method of blower foundation mass concrete, includes following steps：When blower foundation ring bed course reaches
To after some strength, snap the line, formwork lay reinforcing bar thereon, then casting concrete, concrete continuous pour, first once
Pour to base plate top, exceed the beam of bottom parts and middle pier placement layer by layer, every layer of ponding depths are less than 300mm, upper and lower two
Layer concrete pours time interval and cannot be greater than the lower-layer concrete presetting period former 1 hour, when pouring top layer concrete, thickness
Cannot be less than 300mm；To concrete in addition plastic covering thin film cover moisturizing and support within 12h after concreting finishes
Sheath, removes plastic sheeting after 7 days, more again covers moisture-keeping maintaining layer, it is to avoid the sun is exposed to the sun, and the concrete curing time is no less than
14 days, in concrete during maintenance, the table temperature difference was not more than 25 DEG C, and surface is not more than 20 DEG C with the temperature difference of air, any portion of concrete
No more than 70 DEG C of the temperature divided.
During described concreting, the personnel of pouring should enter in steel reinforcement cage is vibrated, when single blower foundation pours
Vibrate no less than 4 vibrators, spacing of vibrating adopts 60cm at no-reinforcing-bar simultaneously, have at reinforcing bar and adopt 40cm, vibrator must
More than lower-layer concrete 10cm must be inserted.
Described moisture-keeping maintaining layer adopts water seasoning：To using portland cement, Portland cement or slag silicon
The concrete of acid salt cement mixing, the water seasoning time must not be less than 7 days；To mixing retarding additive or have seepage resistance demand
Concrete, the water seasoning time must not be less than 14 days；Under wet weather depletion of YANG light direct beam, when temperature is constant at 5～10 DEG C, pour
The water curing time is no less than 14 days；When temperature is constant at 10～20 DEG C, the water seasoning time is no less than 10 days, has in strong wind drying
Under direct sunlight weather, when temperature is constant at 5～10 DEG C, the water seasoning time is no less than 21 days；Temperature is constant at 10～20 DEG C
When, the water seasoning time is no less than 14 days；When temperature is more than 20 DEG C, the water seasoning time is no less than 10 days.
Carry out thermometric record, every piece of base mass concrete arranges 4 thermometer holes during described concrete curing, one
Individual on foundation girder, three are located inside foundation ring, and thermometric record will continue 14 days, and first three sky was at interval of measurement in two hours
Temperature, at interval of temperature of measurement in four hours, temperature of measurement in last 7 days every six hours, pours for the 4th day to the 7th day
Temperature rise value after building is not more than 50 DEG C, and in concrete, the table temperature difference is not more than 25 DEG C, and surface is not more than 20 DEG C with the temperature difference of air, mixes
Coagulate no more than 70 DEG C of native any portion of temperature.
Pouring of concrete of the present invention is quick, and the concrete after pouring is not in the problem of delamination splitting；The present invention
Concrete after pouring, its curing time of appropriate design, and carry out Temperature and Humidity during maintenance it is ensured that during maintenance
Temperature and humidity reaches the requirement of setting, makes the abundant aquation of the concrete after maintenance, and concrete strength gradually increases, it is to avoid coagulation
Soil by expose to the weather wait generation desciccation crack it is ensured that the concrete pouring reaches design requirement intensity within regulation age.
Specific embodiment
The enforcement it is clear that described will be clearly and completely described to the technical scheme in the embodiment of the present invention below
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
A kind of construction method of blower foundation mass concrete, includes following steps：When blower foundation ring bed course reaches
To after some strength, snap the line, formwork lay reinforcing bar thereon, then casting concrete, concrete continuous pour, first once
Pour to base plate top, exceed the beam of bottom parts and middle pier placement layer by layer, every layer of ponding depths are less than 300mm, upper and lower two
Layer concrete pours time interval and cannot be greater than the lower-layer concrete presetting period former 1 hour, when pouring top layer concrete, thickness
Cannot be less than 300mm, and in concreting, the personnel of pouring should enter in steel reinforcement cage is vibrated, and single blower foundation pours
Vibrate no less than 4 vibrators when building, spacing of vibrating adopts 60cm at no-reinforcing-bar, has and adopts 40cm at reinforcing bar, vibrates simultaneously
Device must be inserted into more than lower-layer concrete 10cm；To concrete plastic covering in addition within 12h after concreting finishes
Thin film simultaneously covers moisture-keeping maintaining layer, removes plastic sheeting, more again covers moisture-keeping maintaining layer, it is to avoid the sun is exposed to the sun, coagulation after 7 days
Carry out thermometric record, every piece of base mass concrete arranges 4 thermometer holes, one is located on foundation girder during native maintenance,
Three are located inside foundation ring, and thermometric record will continue 14 days, and at interval of temperature of measurement in two hours, the 4th day arrives in first three sky
At interval of temperature of measurement in four hours, temperature of measurement in last 7 days every six hours, the temperature rise value after pouring is little within 7th day
In 50 DEG C, in concrete, the table temperature difference is not more than 25 DEG C, and surface is not more than 20 DEG C with the temperature difference of air, any portion of temperature of concrete
No more than 70 DEG C of degree.
Wherein, moisture-keeping maintaining layer adopts water seasoning：To using portland cement, Portland cement or slag silicate
The concrete of salt cement mixing, the water seasoning time must not be less than 7 days；To mixing retarding additive or have seepage resistance demand to mix
Solidifying soil, the water seasoning time must not be less than 14 days；Under wet weather depletion of YANG light direct beam, when temperature is constant at 5～10 DEG C, water
Curing time is no less than 14 days；When temperature is constant at 10～20 DEG C, the water seasoning time is no less than 10 days, has sun in strong wind drying
Under light direct beam weather, when temperature is constant at 5～10 DEG C, the water seasoning time is no less than 21 days；When temperature is constant at 10～20 DEG C,
The water seasoning time is no less than 14 days；When temperature is more than 20 DEG C, the water seasoning time is no less than 10 days.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of construction method of blower foundation mass concrete it is characterised in that：Include following steps：Work as blower foundation
After ring bed course reaches some strength, snap the line, formwork lay reinforcing bar thereon, then casting concrete, concrete continuous are poured
Build, first one-time-concreting to base plate top, exceed the beam of bottom parts and middle pier placement layer by layer, every layer of ponding depths are less than
300mm, upper and lower two-layer concreting time interval cannot be greater than the lower-layer concrete presetting period former 1 hour, pours top layer
During concrete, thickness cannot be less than 300mm；Within 12h after concreting finishes, to concrete, plastic covering is thin in addition
Film simultaneously covers moisture-keeping maintaining layer, removes plastic sheeting, more again covers moisture-keeping maintaining layer, it is to avoid the sun is exposed to the sun, concrete after 7 days
Curing time is no less than 14 days, and in concrete during maintenance, the table temperature difference is not more than 25 DEG C, and surface is not more than 20 with the temperature difference of air
DEG C, no more than 70 DEG C of any portion of temperature of concrete.
2. a kind of blower foundation mass concrete according to claim 1 construction method it is characterised in that：Described
During concreting, the personnel of pouring should enter in steel reinforcement cage is vibrated, and is no less than 4 vibrators when single blower foundation pours
Vibrate, spacing of vibrating adopts 60cm at no-reinforcing-bar simultaneously, have at reinforcing bar and adopt 40cm, vibrator must be inserted into lower-layer concrete
More than 10cm.
3. a kind of blower foundation mass concrete according to claim 1 construction method it is characterised in that：Described
Moisture-keeping maintaining layer adopts water seasoning：To using portland cement, Portland cement or portland slag cement mixing
Concrete, the water seasoning time must not be less than 7 days；To mixing retarding additive or the concrete having seepage resistance demand, water foster
The shield time must not be less than 14 days；Under wet weather depletion of YANG light direct beam, when temperature is constant at 5～10 DEG C, the water seasoning time is not
Less than 14 days；When temperature is constant at 10～20 DEG C, the water seasoning time is no less than 10 days, has direct sunlight weather in strong wind drying
Under, when temperature is constant at 5～10 DEG C, the water seasoning time is no less than 21 days；When temperature is constant at 10～20 DEG C, during water seasoning
Between be no less than 14 days；When temperature is more than 20 DEG C, the water seasoning time is no less than 10 days.
4. a kind of blower foundation mass concrete according to claim 1 construction method it is characterised in that：Described
Carry out thermometric record, every piece of base mass concrete arranges 4 thermometer holes, and one is located at foundation girder during concrete curing
On, three be located at foundation ring inside, thermometric record will continue 14 days, first three sky at interval of two hours measurement temperature, the 4th
It is by the 7th day at interval of temperature of measurement in four hours, temperature of measurement in last 7 days every six hours, the temperature rise value after pouring
It is not more than 50 DEG C, in concrete, the table temperature difference is not more than 25 DEG C, surface is not more than 20 DEG C with the temperature difference of air, concrete any part
No more than 70 DEG C of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598478.8A CN106436736A (en) | 2016-07-27 | 2016-07-27 | Fan foundation large-size concrete construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598478.8A CN106436736A (en) | 2016-07-27 | 2016-07-27 | Fan foundation large-size concrete construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106436736A true CN106436736A (en) | 2017-02-22 |
Family
ID=58184224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610598478.8A Pending CN106436736A (en) | 2016-07-27 | 2016-07-27 | Fan foundation large-size concrete construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106436736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812034A (en) * | 2019-01-31 | 2019-05-28 | 青岛一建集团有限公司 | A kind of cooling for large volume casting concrete structural body, moisture retention construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202064369U (en) * | 2011-05-11 | 2011-12-07 | 北京中水恒信环境科技发展有限公司 | Multi-ribbed-slab type foundation structure |
| CN202099811U (en) * | 2011-05-10 | 2012-01-04 | 上海勘测设计研究院 | Spokewise blower foundation structure for onshore wind farm |
| CA2588497C (en) * | 2006-05-22 | 2015-02-17 | General Electric Company | Method and apparatus for wind power foundation |
-
2016
- 2016-07-27 CN CN201610598478.8A patent/CN106436736A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2588497C (en) * | 2006-05-22 | 2015-02-17 | General Electric Company | Method and apparatus for wind power foundation |
| CN202099811U (en) * | 2011-05-10 | 2012-01-04 | 上海勘测设计研究院 | Spokewise blower foundation structure for onshore wind farm |
| CN202064369U (en) * | 2011-05-11 | 2011-12-07 | 北京中水恒信环境科技发展有限公司 | Multi-ribbed-slab type foundation structure |
Non-Patent Citations (3)
| Title |
|---|
| 吴光帅: ""珠海高栏岛风电场工程风机基础施工方法介绍"", 《中国高新技术企业》 * |
| 杨国立主编: "《土木工程施工》", 31 March 2013, 中国电力出版社 * |
| 陈绍峰: ""风力发电场工程风机基础混凝土施工方案"", 《中国西部科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812034A (en) * | 2019-01-31 | 2019-05-28 | 青岛一建集团有限公司 | A kind of cooling for large volume casting concrete structural body, moisture retention construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |