CN202865863U - Basic structure of heavy piece lifting frame - Google Patents

Basic structure of heavy piece lifting frame Download PDF

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Publication number
CN202865863U
CN202865863U CN 201220173766 CN201220173766U CN202865863U CN 202865863 U CN202865863 U CN 202865863U CN 201220173766 CN201220173766 CN 201220173766 CN 201220173766 U CN201220173766 U CN 201220173766U CN 202865863 U CN202865863 U CN 202865863U
Authority
CN
China
Prior art keywords
layer
mast
basic structure
lifting frame
dimension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220173766
Other languages
Chinese (zh)
Inventor
黄泽明
何伟权
王红园
李明杰
冯昭能
陈永成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Engineering Corp
Original Assignee
Guangdong Power Engineering Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Power Engineering Corp filed Critical Guangdong Power Engineering Corp
Priority to CN 201220173766 priority Critical patent/CN202865863U/en
Application granted granted Critical
Publication of CN202865863U publication Critical patent/CN202865863U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a basic structure of a heavy piece lifting frame. The basic structure comprises a filling replacement recess dug from an original soil layer in which a filling replacement layer is paved, and a steel structure bearing platform arranged on the filling replacement layer and used for supporting the supporting legs of the lifting frame, wherein the filling replacement layer comprises a dimension stone layer formed by mixing and tamping dimension stones, broken stones and stone powder, and a surface layer arranged above the dimension stone layer and formed by mixing and tamping the stone powder, sand and a small amount of cement. The basic structure can satisfactorily adapt to the load requirement of the lifting frame by reasonably setting the thickness of the dimension stone layer and the contact surface of the steel structure bearing platform on the ground; the basic structure is simple and convenient in construction and low in cost, does not need to be constructed along with a pile base of a factory building at the same time, and is flexible in construction; and refilling materials can be recycled.

Description

A kind of heavy mail mast-up foundation structure
Technical field
The utility model relates to the foundation structure of mast-up, particularly a kind of foundation structure of large-scale heavy mail mast-up.
Background technology
The weight of power generator stator is very large, usually will reach hundreds of tons heavy, and the lifting of stator is mainly to lift by crane and haul on the steam turbine platform in place by the binding fixtures such as Large-scale Hoisting frame use hoist cable are installed outside steam turbine building.Because the gross weight of stator and hoist cable is very big, therefore, must guarantee that there are enough bearing capacity and stiffness on the basis of mast-up.In order to guarantee the bearing capacity of mast-up, at present, the foundation main of the mast-up of lifting generator unit stator will adopt concrete pile foundation, and the stressed of mast-up directly dropped on the geology bearing stratum.Yet, adopt the concrete pile foundation structure, the basis of mast-up need to be included in to main factory pile foundation engineering and explore simultaneously, design and construct, need to, when main building is built, carry out the concrete pile foundation construction of mast-up simultaneously.If do not carry out in advance the concrete pile foundation construction of mast-up in workshop building, and after main building builds up, then carry out the concrete pile foundation construction, on the moulding factory building foundation of on-the-spot periphery, can produce larger impact, also can increase certain operating expenses, very unfavorable to the quality assurance of engineering.And, because the mast-up concrete pile foundation is temporory structure, if when running into other underground installation of position influence of concrete pile foundation and passing through, also need to take measures it is smashed to pieces to removing, progress and cost on construction also have larger impact, and its construction coordination difficulty is large, and cost is high, construction period is long, is unfavorable for environmental protection.Therefore be necessary that research replaces the concrete pile foundation design with other base form, to economize on resources and to improve work efficiency.
The utility model content
The utility model is intended to provide a kind of foundation structure that can be adapted to the heavy mail mast-up of Soft Soil, and the Foundation Design of its suspension bracket that makes to reset can no longer be synchronizeed with main building concrete pile foundation engineering, improves the degree of freedom of construction, has also reduced construction cost simultaneously.
The foundation structure of heavy mail mast-up described in the utility model, comprise that changing of digging out on former soil layer fill out hole, change to fill out in hole and lay and change packing course, frame is in changing on packing course for supporting the steel work cushion cap of mast-up supporting leg, and the described packing course that changes comprises that mixing by piece stone, rubble and stone flour block stone layer and the block stone layer top that compacting forms tamps by stone flour, sand and a small amount of cement mixing the surface layer formed .
The foundation structure of heavy mail mast-up described in the utility model, fill out hole by digging to change on former soil layer, state block stone layer and surface layer changing to fill out in hole to change to fill out, the bearing capacity of increase ground that can be suitable, then reduce the pressure to ground by the steel work cushion cap changed on packing course, when the reduction mast-up is to ground pressure, increased again the bearing capacity of ground, it makes ground more easily adapt to the burden requirement of mast-up, with the load of mast-up, is complementary.And the bearing capacity of block stone layer is also relevant to its thickness, larger its bearing capacity of the thickness of block stone layer is larger, and the steel work cushion cap reduces relevant to the contact surface over the ground of steel work cushion cap to the pressure on ground, and steel work cushion cap contact surface over the ground is larger, and its pressure is less.Therefore, the thickness of the foundation structure of described heavy mail mast-up by block stone layer reasonably is set and the contact surface over the ground of steel work cushion cap, make the foundation structure of mast-up well adapt to the burden requirement of mast-up with regard to one surely.
The foundation structure of heavy mail mast-up of the present utility model, compare construction cost with original concrete pile foundation structure and significantly reduce.Former concrete pile foundation structure need to be driven piles and the precast concrete cushion cap, and completing after the stator hoisting operation also needs to drop into machinery and smashed to pieces, remove, and total cost is higher.And contact structures of the present utility model, adopt some ground materials during construction, carrying out ground by reasonably combined and processing changes and fills out, do not need to drop into a large amount of machinery, reinforcing bar and cement etc., completing after lifting operation the steel work cushion cap can also wholely transport supporting transfer with mast-up and reuse, and other replacing method also can reuse, cost is lower, and environmental protection.And mast-up arranges that reconnaissance is flexible.Compare with concrete pile foundation, do not need to coordinate to carry out with main building concrete pile foundation engineering simultaneously, the corresponding positions that the mast-up of need not worrying is too much arranged is equipped with the construction of other underground installation.Can be adjusted the mast-up position according to the on-the-spot physical condition before lifting construction, greatly improved flexibility and degree of freedom that mast-up is arranged.In addition, its construction is also very simple, only needs little side's amount soil excavation and ground to change to fill out, compacting and base steel plinth layout etc. get final product, and have greatly shortened the duration.
Under the geological condition higher at water level, that soil moisture in layer is larger, the local Non-uniform Settlement phenomenon descended of stone of packing course bottom easily appears changing in the foundation structure of above-mentioned heavy mail mast-up, to mast-up lifting work, is to bring danger.For fear of this situation, occur, the whole block stone layer of steel plate support can be set in the bottom of changing packing course, restriction by the bottom steel plate, can avoid changing the inhomogeneous lower floor of packing course stone, thereby, under the foundation structure that the makes heavy mail mast-up of the present utility model geology state high in water content, can be good at equally adapting to the burden requirement of mast-up.
The accompanying drawing explanation
Fig. 1 is the foundation structure schematic diagram of heavy mail mast-up of the present utility model.
The specific embodiment
As Fig. 1, a kind of foundation structure of heavy mail mast-up, comprise that changing of digging out on former soil layer fill out hole 1, change to fill out in hole and lay and change packing course 2, frame is in changing on packing course for supporting the steel work cushion cap 3 of mast-up supporting leg 4, and the described packing course that changes comprises that mixing by piece stone, rubble and stone flour block stone layer 21 and the block stone layer top that compacting forms tamps by stone flour, sand and a small amount of cement mixing the surface layer 22 formed.
The thickness of block stone layer and steel work cushion cap can be adjusted according to the load bearing requirements of mast-up with the contact area of changing packing course, so that the load of itself and mast-up adapts.
The bottom of changing packing course can arrange the steel plate 5 of the whole block stone layer of support, to adapt under the geology state that water content is high, uses.

Claims (2)

1. the foundation structure of a heavy mail mast-up, it is characterized in that: comprise that changing of digging out on former soil layer fill out hole, change to fill out in hole and lay and to change packing course, frame is in changing on packing course for supporting the steel work cushion cap of mast-up supporting leg, describedly changes the surface layer that packing course comprises block stone layer and block stone layer top.
2. the foundation structure of heavy mail mast-up according to claim 1, it is characterized in that: the bottom of changing packing course is provided with the steel plate of the whole block stone layer of support.
CN 201220173766 2012-04-23 2012-04-23 Basic structure of heavy piece lifting frame Expired - Fee Related CN202865863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220173766 CN202865863U (en) 2012-04-23 2012-04-23 Basic structure of heavy piece lifting frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220173766 CN202865863U (en) 2012-04-23 2012-04-23 Basic structure of heavy piece lifting frame

Publications (1)

Publication Number Publication Date
CN202865863U true CN202865863U (en) 2013-04-10

Family

ID=48032594

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220173766 Expired - Fee Related CN202865863U (en) 2012-04-23 2012-04-23 Basic structure of heavy piece lifting frame

Country Status (1)

Country Link
CN (1) CN202865863U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781088A (en) * 2016-05-03 2016-07-20 泰兴市第建筑安装工程有限公司 Floor type scaffold of ultrahigh chemical tower
CN106320364A (en) * 2015-06-26 2017-01-11 安徽庞源机械工程有限公司 Ballasting type gravel foundation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320364A (en) * 2015-06-26 2017-01-11 安徽庞源机械工程有限公司 Ballasting type gravel foundation
CN105781088A (en) * 2016-05-03 2016-07-20 泰兴市第建筑安装工程有限公司 Floor type scaffold of ultrahigh chemical tower

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130410

Termination date: 20190423