CN103722613A - Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering - Google Patents
Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering Download PDFInfo
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- CN103722613A CN103722613A CN201310708459.2A CN201310708459A CN103722613A CN 103722613 A CN103722613 A CN 103722613A CN 201310708459 A CN201310708459 A CN 201310708459A CN 103722613 A CN103722613 A CN 103722613A
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000009415 formwork Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 18
- 238000012407 engineering method Methods 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000002362 mulch Substances 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004826 seaming Methods 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 208000029152 Small face Diseases 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention provides a construction method for vertically casting and mounting a four-foot hollow block in seawall wave resistance engineering. The construction method includes that a vertical-casting prefabricating process with a small face downward is adopted, a four-foot hollow block formwork is vertically processed to be a top die, a side die, a bottom die and a core die at a formwork making stage, a combined steel die is directly erected on a concrete ground die, and casting and prefabricating work of the four-foot hollow block is completed by adopting a method of layered casting, so that compactness and surface smoothness of concrete of the four-foot hollow block are guaranteed; after prefabricating of the four-foot hollow block is completed, displacement and stacking can be performed by adopting a forklift by utilizing a central hole position, and horizontal mounting can be realized by adopting hoisting machinery and utilizing a special clamp during mounting. The construction method is simple and convenient in operation.
Description
Technical field
This engineering method is applicable to the construction of four pin hollow block sea wall wave protection works, also can be applied to the construction of the wave protection works of other form prefabricated section.
Background technology
Four pin hollow block sea wall wave protection works, as a kind of sea wall upstream face wave resistance energy dissipating engineering, are used widely in recent years.Four pin hollow block profile more complicated, volume is little, and single engineering quantity is often many, and member construction acquires a certain degree of difficulty, and quality is not easy to guarantee.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; Lifting adopts vertical lifting, and after lifting, four pin hollow blocks are vertical state, need be inverted to level in place during installation, during four pin hollow block end foot positions should cause breakage, construction efficiency is relatively low, and has certain potential safety hazard.
Summary of the invention
The feature of building for four pin hollow blocks is used a kind of facet simple to operate, practicable towards little upright casting precast construction method, adopt small-sized forklift directly to promote running, adopt novel special fixture and digging machine to join the installation that boom hoisting carries out four pin hollow blocks outward, four pin hollow block level liftings have been realized, when having improved efficiency of construction, guaranteed the construction quality of sea wall wave protection works.
The present invention is achieved by the following technical solutions: a kind of sea wall wave protection works four pin hollow block upright castings and installation engineering method, and step comprises:
(1) stencil design is made: 1. designing four pin hollow block templates is combined steel formwork, stands to being processed into backform, side form, bed die, core, 2. makes backform, side form, bed die, core;
(2) concrete topotype is built: after ① precast plant road performance and place sclerosis finish, starting topotype builds, 2. backform, side form, bed die, core are directly propped up on concrete topotype and stand, 3. between topotype and each template, adopt the thick rubber grouting of 4mm bar to carry out grouting;
(3) template is installed: backform, side form, bed die, core are assembled into combined steel, and adopt the U-shaped card assembling of punching block to reinforce, plate face gap requires to be less than 1mm;
(4) concreting: 1. concrete is in blending station central mix, 2. with concrete mixer truck transportation directly into building in combined steel, four pin hollow blocks;
(5) concrete form removal, maintenance: 1. when concrete strength is greater than 5Mpa, carry out form removable, 2. after form removable, the special-purpose cloth of bedding straw bag, gunnysack or maintenance on the four pin hollow blocks that complete, 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, stacking is shifted;
(7) four pin hollow blocks are installed: when prefabricated four pin hollow block intensity reach design strength 100% time, four pin hollow blocks can appear on the scene and install;
As improvement, in step (1), described 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, on described core, pull handle is set so that the demoulding.
As improvement, in step (2), topotype pouring quality meets the following requirements: process through press polish on bed die surface, and surface smoothness requires to be less than 3mm.
As preferably, in step (2), after mulch film has been built, and before template installation, topotype is brushed to releasing agent.
As preferably, in step (3), during each template splicing, at seaming position, lay rubber grouting bar, the combined steel medial surface after assembling is brushed releasing agent, and checks whether template exists defect, breakage.
As preferably, in step (4), concreting is strictly controlled into mould lift height, and THICKNESS CONTROL is 25～40cm, and it is too much unsuitable that disposable concrete enters mould, and first floor concrete enters mould height and is no more than 30cm, and is no more than core bottom surface.
As preferably, the speed of described concreting is less than 60cm/h, and in construction, adopts poker vibrator, and exciting radius is 50cm.
As preferably, in step (7), four pin hollow blocks, are installed to the other end from bottom to top by one end.
The present invention has adopted above-mentioned measure to improve, and beneficial effect is remarkable:
1, the more traditional flat precasting process of watering of this engineering method, bed die can be synchronizeed and remove with side form, core, waits the strong time short, and high, the prefabricated speed of template week transfer efficient is fast.After form removal, four pin hollow block outward appearances are bright and clean, and without cavity, surface pores is less;
2, can adopt the fork truck stacking that is shifted, single unit can operate, and does not need support staff to coordinate; Efficiency is high, and cost is low;
3, equal construction intensity, adopts upright casting precasting process, and precasting yard construction area can be put down and be watered precasting process minimizing 1/4, and it is low that precasting yard is built cost;
Construction technology of the present invention is simple, and input cost is low, simple to operate, is convenient to grasp.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
The present invention is further illustrated in conjunction with the embodiments to contrast accompanying drawing below:
Shown in Fig. 1, a kind of sea wall wave protection works four pin hollow block upright castings and installation engineering method in embodiment 1, step comprises the making of (1) stencil design: four pin hollow block templates adopt combined steel formworks, stand to being processed into backform, side form, bed die, core, the thick 4mm of panel, the stupefied bone in back adopts ∠ 4 * 4cm angle steel, upper plane position arranges charging aperture, template adopts the U-shaped card of punching block to assemble, and seam crossing arranges rubber grouting bar, on core, pull handle is set so that the demoulding;
(2) concrete topotype is built: after the sclerosis of precast plant's road performance and place finishes, just can start topotype and build, backform, side form, bed die, core are directly propped up on concrete topotype vertical, because each template is directly placed on topotype, between mulch film and each template, adopt the thick rubber grouting of 4mm bar to carry out grouting.Because 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 processed through press polish, and surface smoothness is measured and checked that flatness requires to be less than 3mm with 2m guiding ruler.In addition, after mulch film has been built, topotype is brushed to releasing agent;
(3) template is installed: backform, side form, bed die, core are assembled into combined steel, and adopt the U-shaped card assembling of punching block to reinforce, plate face gap requires to be less than 1mm, and at seaming position, lays rubber grouting bar during each template splicing.Combined steel medial surface after assembling is brushed releasing agent, and checks whether template exists defect, breakage, also tackles template and try to spell before building first.
(4) concreting: concrete is in blending station central mix, with concrete mixer truck transportation directly into building in combined steel, four pin hollow blocks.Concrete should strictly be controlled into mould lift height, it is 25～40cm that concreting thickness should be controlled, it is too much unsuitable that disposable concrete enters mould, and first floor concrete warehousing height is advisable to be no more than 30cm, and should not surpass 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.In addition, in construction, adopt the poker vibrator of 1.5kw, exciting radius is 50cm.During 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 removal, maintenance: 1. when being greater than 5Mpa, concrete strength carries out form removable, 2. after form removable, the special-purpose cloth of bedding straw bag, gunnysack or maintenance on the four pin hollow blocks that complete.
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, four pin hollow blocks stackings, vertically to stack and to be advisable, stack and be highly no more than 2 layers.
(7) four pin hollow blocks are installed: when prefabricated four pin hollow block intensity reach design strength 100% time, four pin hollow blocks can appear on the scene and install.Four pin hollow blocks, are installed to the other end from bottom to top by one end.During installation, look four pin hollow block weight and operating condition and select hoisting and hanging machinery, depending on lifting amplitude, install boom hoisting additional.During hoisting and hanging, adopt special fixture to lift by crane, after four pin hollow block installation in position, unload lower clamp, complete whole installment work.
What more than enumerate is only specific embodiments of the invention, obviously, the invention is not restricted to above embodiment.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should belong to protection scope of the present invention.
Claims (8)
1. the four pin hollow block upright castings of sea wall wave protection works and installation engineering method, is characterized in that, step comprises
Stencil design is made: 1. designing four pin hollow block templates is combined steel formwork, stands to being processed into backform, side form, bed die, core, 2. makes backform, side form, bed die, core;
Concrete topotype is built: after ① precast plant road performance and place sclerosis finish, starting topotype builds, 2. backform, side form, bed die, core are directly propped up on concrete topotype and stand, 3. between mulch film and each template, adopt the thick rubber grouting of 4mm bar to carry out grouting;
Template is installed: backform, side form, bed die, core are assembled into combined steel, and adopt the U-shaped card assembling of punching block to reinforce, plate face gap requires to be less than 1mm;
Concreting: 1. concrete is in blending station central mix, 2. with concrete mixer truck transportation directly into building in combined steel, four pin hollow blocks;
Concrete form removal, maintenance: 1. when being greater than 5Mpa, concrete strength carries out form removable, 2. after form removable, the special-purpose cloth of bedding straw bag, gunnysack or maintenance on the four pin hollow blocks that complete;
The displacement of four pin hollow blocks and stacking: when prefabricated four pin hollow block intensity reach design strength 75% time, stacking is shifted;
Four pin hollow blocks are installed: when prefabricated four pin hollow block intensity reach design strength 100% time, four pin hollow blocks can appear on the scene and install;
Sea wall wave protection works four pin hollow block upright castings according to claim 1 and installation engineering method, it is characterized in that, in step (1), described four pin hollow block templates adopt combined steel formwork, the thick 4mm of panel, the stupefied bone in back adopts ∠ 4 * 4cm angle steel, and upper plane position arranges charging aperture, on described core, pull handle is set so that the demoulding.
2. sea wall wave protection works four pin hollow block upright castings according to claim 1 and installation engineering method, is characterized in that, in step (2), topotype pouring quality meets the following requirements: process through press polish on bed die surface, and surface smoothness requires to be less than 3mm.
3. sea wall wave protection works four pin hollow block upright castings according to claim 1 and installation engineering method, is characterized in that, in step (2), after mulch film has been built, and before template installation, topotype brushed to releasing agent.
4. sea wall wave protection works four pin hollow block upright castings according to claim 1 and installation engineering method, is characterized in that, in step (3), during each template splicing, at seaming position, lays rubber grouting bar.
5. sea wall wave protection works four pin hollow block upright castings according to claim 5 and installation engineering method, is characterized in that, the combined steel medial surface after assembling is brushed releasing agent, and checks whether template exists defect, breakage.
6. sea wall wave protection works four pin hollow block upright castings according to claim 1 and installation engineering method, it is characterized in that, in step (4), concreting is strictly controlled into mould lift height, THICKNESS CONTROL is 25～40cm, it is too much unsuitable that disposable concrete enters mould, and first floor concrete enters mould height and is no more than 30cm, and is no more than core bottom surface.
7. sea wall wave protection works four pin hollow block upright castings according to claim 7 and installation engineering method, is characterized in that, the speed of described concreting is less than 60cm/h, and in construction, adopt poker vibrator, and exciting radius is 50cm.
8. sea wall wave protection works four pin hollow block upright castings according to claim 1 and installation engineering method, is characterized in that, in step (7), four pin hollow blocks, are installed to the other end from bottom to top by one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708459.2A CN103722613A (en) | 2013-12-20 | 2013-12-20 | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering |
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| CN201310708459.2A CN103722613A (en) | 2013-12-20 | 2013-12-20 | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering |
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| CN103722613A true CN103722613A (en) | 2014-04-16 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878868A (en) * | 2014-03-18 | 2014-06-25 | 北京工业大学 | Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners |
| CN107186866A (en) * | 2017-06-30 | 2017-09-22 | 中交第航务工程局有限公司 | A kind of small-sized precast block set shaped steel formwork base opening plasm stopping technique |
| CN114457758A (en) * | 2022-03-14 | 2022-05-10 | 浙江迅犀建设有限责任公司 | Vertical casting and installation construction method for hollow nut block of slope protection project |
| CN114750267A (en) * | 2022-03-28 | 2022-07-15 | 中交第四航务工程局有限公司 | Construction method of square horse leg core mold system |
| CN114750266A (en) * | 2022-03-28 | 2022-07-15 | 中交第四航务工程局有限公司 | Construction method of square outer side template system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878868A (en) * | 2014-03-18 | 2014-06-25 | 北京工业大学 | Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners |
| CN107186866A (en) * | 2017-06-30 | 2017-09-22 | 中交第航务工程局有限公司 | A kind of small-sized precast block set shaped steel formwork base opening plasm stopping technique |
| CN114457758A (en) * | 2022-03-14 | 2022-05-10 | 浙江迅犀建设有限责任公司 | Vertical casting and installation construction method for hollow nut block of slope protection project |
| CN114750267A (en) * | 2022-03-28 | 2022-07-15 | 中交第四航务工程局有限公司 | Construction method of square horse leg core mold system |
| CN114750266A (en) * | 2022-03-28 | 2022-07-15 | 中交第四航务工程局有限公司 | Construction method of square outer side template system |
| CN114750267B (en) * | 2022-03-28 | 2023-12-08 | 中交第四航务工程局有限公司 | Construction method of square horse leg core mould system |
| CN114750266B (en) * | 2022-03-28 | 2023-12-08 | 中交第四航务工程局有限公司 | Construction method of square outside formwork system |
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Application publication date: 20140416 |