CN104234073A - Deep preformed hole molding construction method - Google Patents
Deep preformed hole molding construction method Download PDFInfo
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- CN104234073A CN104234073A CN201410412723.2A CN201410412723A CN104234073A CN 104234073 A CN104234073 A CN 104234073A CN 201410412723 A CN201410412723 A CN 201410412723A CN 104234073 A CN104234073 A CN 104234073A
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- reinforcement
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- steel pipe
- scaffolding steel
- vertical rod
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Abstract
The invention discloses a deep preformed hole molding construction method. According to the specific technical scheme, the method comprises the following steps: I, accurately positioning and fixing a bottom plate; II, mounting a reinforcement cage; III, inserting a scaffold steel pipe; IV, mounting a large-head wedge and an inner support; V, casting concrete; VI, dismantling the large-head wedge, the inner support, the inner reinforcement cage and the scaffold steel pipe. By adopting the deep preformed hole molding construction method provided by the invention, the constructing quality after molding of a preformed hole is ensured, the structure is simple, convenience is brought to manufacturing, and the construction cost is lowered.
Description
Technical field
The present invention relates to darker reserving hole molding construction method, be the shaping construction method of the reserving hole such as equipment Foundations, rim of a cup basis specifically, be applied to reinforced concrete construction field, especially the darker reserving hole molding construction method of one.
Background technology
The reserving hole of current large equipment base, mark mouth basic engineering, equipment Foundations reserving hole sectional dimension is between 300mm ~ 800mm, and mark mouth basis reserving hole short sectional dimension is between 500mm ~ 800mm; And reserving hole is greater than 1500mm more deeply, the shaping rear concrete surface of designing requirement wants dabbing.The shaping employing of usual reserving hole is buried mortar box underground, buries bellows underground, buries steel pipe underground, is buried PHC pipe or formwork construction etc. underground, and these reserving hole molding construction methods all exist self defect, the shaping rear concrete surface of some reserving holes cannot dabbing, have cannot confirm reserving hole shaping after verticality, some construction operation inconvenience, concrete artificial chisel gross weight is large, and need the manpower and the material that drop into trial of strength, construction cost drops into excessive height; There is larger risk, rear vertical missing as shaping in reserving hole is comparatively large, causes equipment, prefabricated units or steel beam column etc. to install, will bring compared with economic loss, and affect construction speed and construction quality.
Summary of the invention
Technical problem to be solved by this invention is to provide the darker reserving hole molding construction method of one, the construction quality after guarantee reserving hole is shaping, and structure is simple, easy to make, reduces construction cost.
For achieving the above object, the darker reserving hole molding construction method of one of the present invention, its concrete technical scheme is:
One, accurate location and fixed base plate
According to design drawing size, with the accurate positioning plate of measuring apparatus, base plate is released the center line of reserving hole, adopt the steel plate of δ=6 ㎜ to be directly weldingly fixed on floor board framing as base plate, adopt the wooden form of δ=16 ㎜ as base plate, utilize base plate skeleton to fix.
Two, cage of reinforcement is installed
According to design reserving hole sectional dimension, make inside and outside cage of reinforcement, outer cage of reinforcement comprises outer cage of reinforcement vertical rod and outer cage of reinforcement horizon bar, interior cage of reinforcement comprises interior cage of reinforcement vertical rod and interior cage of reinforcement horizon bar, interior cage of reinforcement vertical rod and outer cage of reinforcement vertical pole ' s span are 500mm, interior cage of reinforcement horizon bar and outer cage of reinforcement level interval are 500mm, inside and outside cage of reinforcement adopts the reinforcing bar of ф 22 to make, sectional dimension+the 50mm of the sectional dimension=reserving hole of interior cage of reinforcement vertical rod or horizon bar, cage of reinforcement vertical rod and horizon bar in first accurately fixing according to the center line of the reserving hole on base plate, fixing outer cage of reinforcement vertical rod and horizon bar again.
Three, scaffolding steel pipe is inserted
Scaffolding steel pipe inserts in the middle of inside and outside cage of reinforcement, wants length to stagger by 50% when scaffolding steel pipe inserts, short scaffolding steel pipe higher than concrete surface 500mm, the scaffolding steel pipe grown higher than concrete surface h=1000mm, the dismounting of favourable scaffolding steel pipe; Adopt sand to fill with in the scaffolding steel pipe of contacts baseplate end, it is highly 300mm, and during waterproof concreting, cement will flow in scaffolding steel pipe.
Four, major part wedge and inner support are installed
After scaffolding steel pipe has inserted, major part wedge is squeezed in the gap between the above scaffolding steel pipe vertical rod of concrete surface, and in hole, do same inner support reinforce, inner support dot spacing is 600mm.
Five, concreting
The floating situation of scaffolding steel pipe to be seen in casting process at any time, control concrete speed of perfusion well.
Six, major part wedge, inner support, interior cage of reinforcement and scaffold tube steel is removed
Concreting is after complete 6 hours, removes major part wedge, inner support immediately, and then with reinforcing bar horizontal skeleton in gas cutting excision, first the every limit of each hole staggers the scaffolding steel pipe of dismounting more than 3.Be conducive to comprehensive scaffolding steel pipe below.
The darker reserving hole molding construction method of one proposed by the invention, the construction quality after guarantee reserving hole is shaping, structure is simple, easy to make, reduces construction cost.
Accompanying drawing explanation
Fig. 1 is that reserving hole installs floor map.
Fig. 2 is that reserving hole installs A-A generalized section.
Fig. 3 is that reserving hole installs B-B generalized section.
Fig. 4 is that reserving hole installs fixing skeleton schematic diagram.
Fig. 5 is that reserving hole installs major part wedge schematic diagram.
Fig. 6 is the shaping rear effect schematic diagram of reserving hole.
Detailed description of the invention
See accompanying drawing, the darker reserving hole molding construction method of one, its concrete technical scheme is:
One, accurate location and fixed base plate
According to design drawing size, with the accurate positioning plate 1 of measuring apparatus, base plate is released the center line of reserving hole, adopt the steel plate of δ=6 ㎜ to be directly weldingly fixed on floor board framing as base plate, adopt the wooden form of δ=16 ㎜ as base plate, utilize base plate skeleton to fix;
Two, cage of reinforcement is installed
According to design reserving hole sectional dimension, make inside and outside cage of reinforcement, outer cage of reinforcement comprises outer cage of reinforcement vertical rod 5 and outer cage of reinforcement horizon bar 2, interior cage of reinforcement comprises interior cage of reinforcement vertical rod 7 and interior cage of reinforcement horizon bar 6, interior cage of reinforcement vertical rod and outer cage of reinforcement vertical pole ' s span are 500mm, interior cage of reinforcement horizon bar and outer cage of reinforcement level interval are 500mm, inside and outside cage of reinforcement adopts the reinforcing bar of ф 22 to make, sectional dimension+the 50mm of the sectional dimension=reserving hole of interior cage of reinforcement vertical rod or horizon bar, cage of reinforcement vertical rod and horizon bar in first accurately fixing according to the center line of the reserving hole on base plate, fixing outer cage of reinforcement vertical rod and horizon bar again.
Three, scaffolding steel pipe is inserted
Scaffolding steel pipe 3 inserts in the middle of inside and outside cage of reinforcement, scaffolding steel pipe insert time want length to stagger by 50%, short scaffolding steel pipe higher than concrete surface 500mm, grow scaffolding steel pipe higher than concrete surface h=1000mm, the dismounting of favourable scaffolding steel pipe; Adopt sand 8 to fill with in the scaffolding steel pipe of contacts baseplate end, it is highly 300mm, and during waterproof concreting, cement will flow in scaffolding steel pipe.
Four, major part wedge and inner support are installed
After scaffolding steel pipe has inserted, major part wedge 4 is squeezed in the gap between the above scaffolding steel pipe vertical rod of concrete surface, and in hole, do same inner support 9 reinforce, inner support dot spacing is 600mm.
Five, concreting
The floating situation of scaffolding steel pipe to be seen in casting process at any time, control concrete speed of perfusion well.
Six, major part wedge, inner support, interior cage of reinforcement and scaffold tube steel is removed
Concreting is after complete 6 hours, removes major part wedge, inner support immediately, and then with reinforcing bar horizontal skeleton in gas cutting excision, first the every limit of each hole staggers the scaffolding steel pipe of dismounting more than 3.Be conducive to comprehensive scaffolding steel pipe below.
The darker reserving hole molding construction method of one proposed by the invention, the construction quality after guarantee reserving hole is shaping, structure is simple, easy to make, reduces construction cost.
Claims (1)
1. a darker reserving hole molding construction method, its concrete technical scheme is:
One, accurate location and fixed base plate
According to design drawing size, with the accurate positioning plate of measuring apparatus, base plate is released the center line of reserving hole, adopt the steel plate of δ=6 ㎜ to be directly weldingly fixed on floor board framing as base plate, adopt the wooden form of δ=16 ㎜ as base plate, utilize base plate skeleton to fix;
Two, cage of reinforcement is installed
According to design reserving hole sectional dimension, make inside and outside cage of reinforcement, outer cage of reinforcement comprises outer cage of reinforcement vertical rod and outer cage of reinforcement horizon bar, interior cage of reinforcement comprises interior cage of reinforcement vertical rod and interior cage of reinforcement horizon bar, interior cage of reinforcement vertical rod and outer cage of reinforcement vertical pole ' s span are 500mm, interior cage of reinforcement horizon bar and outer cage of reinforcement level interval are 500mm, inside and outside cage of reinforcement adopts the reinforcing bar of ф 22 to make, sectional dimension+the 50mm of the sectional dimension=reserving hole of interior cage of reinforcement vertical rod or horizon bar, cage of reinforcement vertical rod and horizon bar in first accurately fixing according to the center line of the reserving hole on base plate, fixing outer cage of reinforcement vertical rod and horizon bar again,
Three, scaffolding steel pipe is inserted
Scaffolding steel pipe inserts in the middle of inside and outside cage of reinforcement, length is wanted to stagger by 50% when scaffolding steel pipe inserts, short scaffolding steel pipe is higher than concrete surface 500mm, long scaffolding steel pipe is higher than concrete surface h=1000mm, adopt sand to fill with in the scaffolding steel pipe of contacts baseplate end, it is highly 300mm;
Four, major part wedge and inner support are installed
After scaffolding steel pipe has inserted, major part wedge is squeezed in the gap between the above scaffolding steel pipe vertical rod of concrete surface, and in hole, do same inner support reinforce, inner support dot spacing is 600mm;
Five, concreting
The floating situation of scaffolding steel pipe to be seen in casting process at any time, control concrete speed of perfusion well;
Six, major part wedge, inner support, interior cage of reinforcement and scaffold tube steel is removed
Concreting is after complete 6 hours, removes major part wedge, inner support immediately, and then with reinforcing bar horizontal skeleton in gas cutting excision, first the every limit of each hole staggers the scaffolding steel pipe of dismounting more than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412723.2A CN104234073B (en) | 2014-08-21 | 2014-08-21 | One deeper reserving hole molding construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412723.2A CN104234073B (en) | 2014-08-21 | 2014-08-21 | One deeper reserving hole molding construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234073A true CN104234073A (en) | 2014-12-24 |
| CN104234073B CN104234073B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410412723.2A Active CN104234073B (en) | 2014-08-21 | 2014-08-21 | One deeper reserving hole molding construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612176A (en) * | 2015-01-14 | 2015-05-13 | 苏州第五建筑集团有限公司 | Construction method and device of reserved hole |
| CN109778900A (en) * | 2019-03-25 | 2019-05-21 | 中国二十二冶集团有限公司 | Quick Release formwork erecting structure and its construction method for basic rim of a cup template |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199590A (en) * | 1995-01-23 | 1996-08-06 | Ichiro Nagao | Concrete block building foundation construction method |
| CN101705692A (en) * | 2009-11-27 | 2010-05-12 | 温州中城建设集团有限公司 | Molding construction method of large-scale equipment foundation deep reserved foundation bolt hole |
| CN102373713A (en) * | 2011-11-22 | 2012-03-14 | 中国水利水电第十四工程局有限公司 | Construction method and device for preserved hole of equipment foundation bolt |
| CN203174625U (en) * | 2013-04-28 | 2013-09-04 | 中国葛洲坝集团股份有限公司 | Small-section square reserved hole template |
| CN103306303A (en) * | 2013-06-14 | 2013-09-18 | 鞍钢集团工程技术有限公司 | Forming method for device anchor bolt preformed hole |
-
2014
- 2014-08-21 CN CN201410412723.2A patent/CN104234073B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199590A (en) * | 1995-01-23 | 1996-08-06 | Ichiro Nagao | Concrete block building foundation construction method |
| CN101705692A (en) * | 2009-11-27 | 2010-05-12 | 温州中城建设集团有限公司 | Molding construction method of large-scale equipment foundation deep reserved foundation bolt hole |
| CN102373713A (en) * | 2011-11-22 | 2012-03-14 | 中国水利水电第十四工程局有限公司 | Construction method and device for preserved hole of equipment foundation bolt |
| CN203174625U (en) * | 2013-04-28 | 2013-09-04 | 中国葛洲坝集团股份有限公司 | Small-section square reserved hole template |
| CN103306303A (en) * | 2013-06-14 | 2013-09-18 | 鞍钢集团工程技术有限公司 | Forming method for device anchor bolt preformed hole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612176A (en) * | 2015-01-14 | 2015-05-13 | 苏州第五建筑集团有限公司 | Construction method and device of reserved hole |
| CN109778900A (en) * | 2019-03-25 | 2019-05-21 | 中国二十二冶集团有限公司 | Quick Release formwork erecting structure and its construction method for basic rim of a cup template |
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| Publication number | Publication date |
|---|---|
| CN104234073B (en) | 2016-10-05 |
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