CN103878868A - Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners - Google Patents
Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners Download PDFInfo
- Publication number
- CN103878868A CN103878868A CN201410099337.2A CN201410099337A CN103878868A CN 103878868 A CN103878868 A CN 103878868A CN 201410099337 A CN201410099337 A CN 201410099337A CN 103878868 A CN103878868 A CN 103878868A
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- China
- Prior art keywords
- prefabricated
- block
- concrete
- construction process
- mold
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0055—Mould pallets; Mould panels
Abstract
The invention provides an application of a novel vertical pouring construction process to a prefabricated concrete block with four hollow corners. The novel vertical pouring construction process is applied to the field of prefabricated parts for wave resistance and energy dissipation of seawall upstream faces. A downward-facet vertical pouring prefabricated process is adopted, and a formwork of the block with the four hollow corners is vertically machined into a top mold, four side molds, a bottom mold and a core mold in the formwork manufacturing stage; a combined steel mold is directly erected on a concrete floor mold, and the block with the four hollow corners is poured and prefabricated through a layered pouring method. A traditional production process of the block with the four hollow corners is changed, and the construction process has the advantages that operation is easy to conduct, input of bottom molds is reduced, the construction area of a prefabricated yard is reduced, and pouring quality can be well guaranteed.
Description
Technical field
The object of the present invention is to provide a kind of upright casting construction technology of four jiaos of novel cellular blocks, and be applied to the fields such as the prefabricated components of sea wall upstream face wave resistance energy dissipating.
Background technology
Four pin hollow blocks, as the prefabricated components of a kind of sea wall upstream face wave resistance energy dissipating, are used widely in recent years.Four pin hollow block profile more complicated, volume is little, and single engineering quantity is often many, and prefabricated construction acquires a certain degree of difficulty, and presentation quality is not easy to ensure.Traditional prefabricated casting method is to put down to water method (facing down greatly), and its difficulty of construction is large, and construction land tenure is many, and bed die cannot effectively have enough to meet the need.The feature that this construction method is built for four pin hollow blocks is used simple and easy, the practicable upright casting precast construction method of a kind of operation, ensures the pouring quality of prefabricated section, reduces bed die input amount, saves precasting yard and builds area.For this reason, sum up the experiences such as the prefabricated design of four pin hollow block upright castings, making, installation and worked out patent of the present invention
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of novel preparation method of four jiaos of cellular blocks.Specifically take following technical scheme:
The application of novel upright casting construction technology in prefabricated four jiaos of cellular blocks, is characterized in that: adopt little ventricumbent upright casting precasting process, in the template construct stage, four pin hollow block templates are stood to being processed into backform, 4 side forms, bed die, core; Combined steel directly props up vertical on concrete topotype, adopts the method for placement layer by layer to complete the prefabricated work of building of four pin hollow blocks.
Specific as follows:
1, stencil design
Four pin hollow block templates adopt combined steel formwork, the thick 4mm of panel, and the stupefied bone in back adopts ∠ 4 × 4cm angle steel, and upper plane position arranges charging aperture, and template adopts the U-shaped card of punching block to assemble, and seam crossing arranges rubber grouting bar.
2, concrete topotype is built
After the sclerosis of precast plant's road performance and place finishes, just can start topotype and build, because four pin hollow block templates are directly placed on topotype, between mulch film and template, adopt the thick rubber grouting of 4mm bar to carry out grouting.Therefore the construction quality of topotype flatness will directly affect the pouring quality of four pin hollow blocks.Topotype concrete grade should exceed prefabricated components concrete 1～2 label.Topotype pouring quality need meet the following requirements: bed die surface need be through press polish processing, and surface smoothness is measured and checked that flatness requires to be less than 3mm with 2m guiding ruler.
3, template is installed
Before template assembly, should brush releasing agent at topotype and combined steel medial surface respectively, and check whether template exists defect, breakage, before building first, also tackle template and try to spell.When template splicing, should lay rubber grouting bar at seaming position, adopt the U-shaped card assembling of punching block to reinforce, plate face gap requires to be less than 1mm.
4, the displacement of four pin hollow blocks and stacking
When prefabricated four pin hollow block intensity reach design strength 75% time, the stacking that can be shifted, four pin hollow blocks displacements can adopt fork truck to promote transhipment.Fork truck fork arm is pitched into four pin hollow block center cavity positions and is directly promoted transhipment, should be noted outsourcing rubber on fork truck fork arm before construction, in case fork arm directly contacts and causes four pin hollow block angle breakages with concrete.Four pin hollow blocks are stacked, and vertically to stack and to be advisable, stack and are highly no more than 2 layers.
Four jiaos of cellular blocks adopt upright casting construction technology tool to have the following advantages:
1. this engineering method has changed traditional flat construction technology of watering (facing down greatly), adopts upright casting technique.Early, template utilization rate is high for striking time.
2. construction technology is simple, and input cost is low, operate simple and easy, be convenient to grasp.
3. adopt the prefabricated construction technology of upright casting (little facing down), can effectively reduce precasting yard floor space, save construction land tenure.
4. concrete and template close contact, is difficult for producing cavity, and construction quality is convenient to control.
Brief description of the drawings
Fig. 1 is four jiaos of hollow block form assembly drawings;
Fig. 2 is grade separation construction flow chart.
Detailed description of the invention
Now by reference to the accompanying drawings this patent is described further:
Referring to Fig. 1, in production technology, main key points for operation are as follows:
1 stencil design
Four pin hollow block templates adopt combined steel formwork, the thick 4mm of panel, and the stupefied bone in back adopts ∠ 4 × 4cm angle steel, and upper plane position arranges charging aperture, and template adopts the U-shaped card of punching block to assemble, and seam crossing arranges rubber grouting bar.Template and topotype contact-making surface are established wide, the thick 4mm rubber of 4cm grouting bar, on core, pull handle are set so that the demoulding.
2 concrete topotypes are built
After the sclerosis of precast plant's road performance and place finishes, just can start topotype and build, because four pin hollow block templates are directly placed on topotype, between mulch film and template, adopt the thick rubber grouting of 4mm bar to carry out grouting.Therefore the construction quality of topotype flatness will directly affect the pouring quality of four pin hollow blocks.
Topotype concrete grade should exceed prefabricated components concrete 1～2 label.Topotype pouring quality need meet the following requirements: bed die surface need be through press polish processing, and surface smoothness is measured and checked that flatness requires to be less than 3mm with 2m guiding ruler.
3 templates are installed
Before template assembly, should brush releasing agent at topotype and combined steel medial surface respectively, and check whether template exists defect, breakage, before building first, also tackle template and try to spell.When template splicing, should lay rubber grouting bar at seaming position, adopt the U-shaped card assembling of punching block to reinforce, plate face gap requires to be less than 1mm.
4 concretings
(1) in construction, concrete is in blending station central mix, and available concrete mixer truck transport is built directly into mould.Concrete should strictly be controlled the lift height that puts in storage, it is 25～40cm that concreting thickness should be controlled, disposable concrete warehousing is too much unsuitable, and first floor concrete warehousing height is advisable to be no more than 30cm, and should not exceed core bottom surface, concreting speed should be less than 60cm/h, as speed of perfusion is crossed piece, can make template lift phenomenon on having, the in the situation that of conditions permit, increase as far as possible the deadweight of combined steel, if desired can plug-in counterweight.
(2) in construction, adopt the poker vibrator of 1.5kw, exciting radius is 50cm.When construction, require vibrating spear to be advisable to insert the dark 5cm of last layer concrete, insert spacing 40cm left and right, forbid vibrator to touch template and vibrate.
5 concrete form removals, maintenance
Concrete is after having built, when being greater than 5Mpa, concrete strength can carry out form removable, the special cloth of bedding straw bag, gunnysack or maintenance in time after form removable, be beneficial to concrete heat insulation, insulation, moisturizing, and carry out in time water seasoning, keep concrete surface moistening, should not be less than 28 days to the concrete curing time.
The displacement of 6 four pin hollow blocks and stacking
When prefabricated four pin hollow block intensity reach design strength 75% time, the stacking that can be shifted, four pin hollow blocks displacements can adopt fork truck to promote transhipment.Fork truck fork arm is pitched into four pin hollow block center cavity positions and is directly promoted transhipment, should be noted outsourcing rubber on fork truck fork arm before construction, in case fork arm directly contacts and causes four pin hollow block angle breakages with concrete.Four pin hollow blocks are stacked, and vertically to stack and to be advisable, stack and are highly no more than 2 layers.
Claims (1)
1. the application of novel upright casting construction technology in prefabricated four jiaos of cellular blocks, is characterized in that: adopt little ventricumbent upright casting precasting process, in the template construct stage, four pin hollow block templates are stood to being processed into backform, 4 side forms, bed die, core; Combined steel directly props up vertical on concrete topotype, adopts the method for placement layer by layer to complete the prefabricated work of building of four pin hollow blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099337.2A CN103878868A (en) | 2014-03-18 | 2014-03-18 | Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099337.2A CN103878868A (en) | 2014-03-18 | 2014-03-18 | Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103878868A true CN103878868A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410099337.2A Pending CN103878868A (en) | 2014-03-18 | 2014-03-18 | Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners |
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| Country | Link |
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| CN (1) | CN103878868A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053434A (en) * | 2017-05-02 | 2017-08-18 | 中交第二航务工程勘察设计院有限公司 | A kind of quickly assembled and disassembled four pin prod casts tool and operating method |
| CN108942126A (en) * | 2018-06-21 | 2018-12-07 | 宁夏元泉建设有限公司 | The production method of concrete tetrapod template |
| CN112873517A (en) * | 2021-01-14 | 2021-06-01 | 陕西中达公路技术服务有限公司 | Feeding system and method of intelligent masonry machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067939A (en) * | 1991-06-20 | 1993-01-13 | 万逸民 | Breakwater concrete block |
| US20050100418A1 (en) * | 2002-03-12 | 2005-05-12 | Lee Keun-Hee | Ecological block and vegetation bank protection |
| CN201162206Y (en) * | 2008-03-21 | 2008-12-10 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Seawall protection concrete body |
| CN102021895A (en) * | 2009-09-11 | 2011-04-20 | (株)Mecca海洋研究所 | Method for preparing wave dissipation block and process for constructing the same |
| CN103722613A (en) * | 2013-12-20 | 2014-04-16 | 浙江省第一水电建设集团股份有限公司 | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering |
-
2014
- 2014-03-18 CN CN201410099337.2A patent/CN103878868A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067939A (en) * | 1991-06-20 | 1993-01-13 | 万逸民 | Breakwater concrete block |
| US20050100418A1 (en) * | 2002-03-12 | 2005-05-12 | Lee Keun-Hee | Ecological block and vegetation bank protection |
| CN201162206Y (en) * | 2008-03-21 | 2008-12-10 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Seawall protection concrete body |
| CN102021895A (en) * | 2009-09-11 | 2011-04-20 | (株)Mecca海洋研究所 | Method for preparing wave dissipation block and process for constructing the same |
| CN103722613A (en) * | 2013-12-20 | 2014-04-16 | 浙江省第一水电建设集团股份有限公司 | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053434A (en) * | 2017-05-02 | 2017-08-18 | 中交第二航务工程勘察设计院有限公司 | A kind of quickly assembled and disassembled four pin prod casts tool and operating method |
| CN108942126A (en) * | 2018-06-21 | 2018-12-07 | 宁夏元泉建设有限公司 | The production method of concrete tetrapod template |
| CN108942126B (en) * | 2018-06-21 | 2020-04-03 | 宁夏元泉建设有限公司 | Method for manufacturing concrete four-leg formwork |
| CN112873517A (en) * | 2021-01-14 | 2021-06-01 | 陕西中达公路技术服务有限公司 | Feeding system and method of intelligent masonry machine |
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Application publication date: 20140625 |