CN104120736A - Construction method of reinforced concrete retaining wall - Google Patents
Construction method of reinforced concrete retaining wall Download PDFInfo
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- CN104120736A CN104120736A CN201310154467.7A CN201310154467A CN104120736A CN 104120736 A CN104120736 A CN 104120736A CN 201310154467 A CN201310154467 A CN 201310154467A CN 104120736 A CN104120736 A CN 104120736A
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Abstract
The invention discloses a construction method of a reinforced concrete retaining wall. The construction method of the reinforced concrete retaining wall comprises the following steps of (1) measurement and paying-off, (2) earthwork and sand cushion digging, (3) manufacturing and installation of basic steel bars, (4) erecting of a basic formwork, (5) pouring of basic concrete, (6) erecting of a wall body formwork, (7) pouring of wall body concrete, (8) concrete curing, and (9) detachment of the formworks. The construction method of the reinforced concrete retaining wall is reasonable in labor division, and scientific, standard and strict in operation, all indicators of supporting of the built retaining wall are higher than the requirements of standards and the design, and the construction method is worth application and popularization.
Description
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Technical field
The present invention relates to a kind of construction method of reinforced concrete retaining wall, belong to engineering construction technology field.
Background technology
Retaining wall refers to supporting Roadbed Soil or the hillside soil body, prevent from banketing or the structure of soil deformation unstability.In retaining wall cross section, and be supported the position that the soil body directly contacts and be called the wall back of the body; Relative with the wall back of the body, face empty position and be called metope; The position directly contacting with ground is called substrate; End face relative with substrate, wall is called wall top; The front end of substrate is called toe of wall; The rear end of substrate is called wall heel.According to the setting position difference of retaining wall, be divided into curb wall, embankment wall, cutting wall and hillside wall etc.The retaining wall that is arranged at side slope of embankment is called embankment wall; The retaining wall that wall top is positioned at curb is called curb wall; The retaining wall that is arranged at cut slope is called cutting wall; Be arranged on hillside, the covering layer soil body that may cave on supporting hillside or the retaining wall of broken rock are called hillside wall.
In the basement construction process of construction work, meet geology soil layer complexity, cubic metre of earth slippage is rolled, landslide coefficient is large and the situation that cannot put slope also often adopts retaining wall as supporting.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of construction method of reinforced concrete retaining wall, this construction method rational division of labor, operates scientific and normal rigorously, and the retaining wall supporting indices building up, all higher than specification and designing requirement, is worthy of popularization.
Technical scheme: the construction method of a kind of reinforced concrete retaining wall of the present invention, comprises the steps:
(1) measure unwrapping wire: go out retaining wall center line, the basic plane position line and vertical disconnected altitude traverse according to construction drawing and coordinate point measuring, carry out plane, vertical control point;
(2) earth excavation and sand bedding course: adopt sand, stone bed course that the thick weight ratio of 60mm is 2:8, sandstone bed course vibration compacting, roll smooth, after husky, stone cushion construction completes, should check design altitude and make body of wall axis, key dimension line and reinforcing bar control line by design drawing and barricade center line stake;
(3) reinforcement foundation is made and is installed: reinforcing bar is HRB335 hot rolled ribbed steel bar, when colligation, will carefully check reinforcement placement drawing, checks accurate rear colligation; Before reinforcing bar binding, bed course mud, water should be cleaned out to the main muscle of Φ 12
200mm, horizontal distribution muscle spacing 200mm, by the spacing of reserving, first put the muscle of being advocated, after put distribution bar, simultaneously spilled water hole should coordinate installation in time;
(4) prop up vertical foundation forms, template should have enough intensity, rigidity and stability, can bear the impact force of concreting, concrete lateral pressure; When shuttering supporting, template end opening first does horizontal support, then adds diagonal brace and fix, and form joint should be tight, must not spillage, faulting of slab ends;
(5) build base concrete: concrete is answered placement layer by layer, lift height is difficult for exceeding 300mm.Each layer concrete must not build and is interrupted; The jolt ramming of Ying Qian layer concrete is not yet before initial set, and sublevel concreting, tamping is complete, and while vibrating time layer concrete, vibrating spear should be inserted people's anterior layer 50mm ~ 100mm;
(6) prop up vertical wall form: in place according to the template in the assembled outside of stencil design scheme opsition dependent line, then Φ 12 pull bars are installed, spacing 600mm, installs when stay-bolt screw rod and will protect anchor pole with former spray and be effectively connected;
(7) build walls concrete: before walls concrete is built, first evenly build the thick mortar setting course identical with walls concrete strength grade of 15mm-20mm at bottom joint part; Concrete should be by regulation and stipulation placement layer by layer, vibration compacting, and lift height is not more than 300mm; Concrete discharging point is answered dispersed placement, and body of wall should be built continuously, and every interlayer interval is no more than the concrete initial set time; Walls concrete constuction joint should be located at design shrinkage joint place; Concreting is vibrated complete, and the reinforcing bar exposing suitable for reading is arranged, and carries out levelling with wood float by design elevation control pair body of wall is suitable for reading;
(8) concrete curing: after solidifying soil is built, should be covered in 12h and water, irrigation times should be able to keep concrete to have enough moisture states, and curing time is generally no less than 7d;
(9) form removable: when the total intensity 75% that reaches when concrete strength is above, can remove Side shuttering.
Further improve technique scheme, adopt along button or the Eight characters button when assembling reinforcement in described step (three), the joining of reinforced mesh muscle is all outside colligation.
Further, in described step (four), between reinforcing bar and template, be lined with cushion block, cushion block adopts cement mortar to make, and pad thickness should be identical with protective layer thickness, pre-buried baked wheaten cakes thread in cushion block, or ensure protective layer thickness with plastic clip.
Further, in described step (five), before base concrete initial set, apart from basic outer edge, inside 100mm inserts Φ 20 reinforcing bars, buried depth 150mm, and the 50～80mm that leaks outside, spacing 1500mm, stable for the bearing of external scaffolding, prevent the slippage of scaffold root.
Further, described spilled water hole is ф 110PVC spilled water hole, spacing 3m, array pitch 2m.
Compared with prior art, its beneficial effect is in the present invention: the construction method rational division of labor of reinforced concrete retaining wall of the present invention, operate scientific and normal rigorously, and the retaining wall supporting indices building up, all higher than specification and designing requirement, is worthy of popularization.
Detailed description of the invention
Below technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
embodiment 1:a construction method for reinforced concrete retaining wall, comprises the steps:
(1) measure unwrapping wire: go out retaining wall center line, the basic plane position line and vertical disconnected altitude traverse according to construction drawing and coordinate point measuring, carry out plane, vertical control point;
(2) earth excavation and sand bedding course: adopt sand, stone bed course that the thick weight ratio of 60mm is 2:8, sandstone bed course vibration compacting, roll smooth, after husky, stone cushion construction completes, should check design altitude and make body of wall axis, key dimension line and reinforcing bar control line by design drawing and barricade center line stake;
(3) reinforcement foundation is made and is installed: reinforcing bar is HRB335 hot rolled ribbed steel bar, when colligation, will carefully check reinforcement placement drawing, checks accurate rear colligation; Before reinforcing bar binding, bed course mud, water should be cleaned out to the main muscle of Φ 12
200mm, horizontal distribution muscle spacing 200mm, by the spacing of reserving, first put the muscle of being advocated, after put distribution bar, simultaneously spilled water hole should coordinate installation in time;
(4) prop up vertical foundation forms, template should have enough intensity, rigidity and stability, can bear the impact force of concreting, concrete lateral pressure; When shuttering supporting, template end opening first does horizontal support, then adds diagonal brace and fix, and form joint should be tight, must not spillage, faulting of slab ends;
(5) build base concrete: concrete is answered placement layer by layer, lift height is difficult for exceeding 300mm.Each layer concrete must not build and is interrupted; The jolt ramming of Ying Qian layer concrete is not yet before initial set, and sublevel concreting, tamping is complete, and while vibrating time layer concrete, vibrating spear should be inserted people's anterior layer 50mm ~ 100mm;
(6) prop up vertical wall form: in place according to the template in the assembled outside of stencil design scheme opsition dependent line, then Φ 12 pull bars are installed, spacing 600mm, installs when stay-bolt screw rod and will protect anchor pole with former spray and be effectively connected;
(7) build walls concrete: before walls concrete is built, first evenly build the thick mortar setting course identical with walls concrete strength grade of 15mm-20mm at bottom joint part; Concrete should be by regulation and stipulation placement layer by layer, vibration compacting, and lift height is not more than 300mm; Concrete discharging point is answered dispersed placement, and body of wall should be built continuously, and every interlayer interval is no more than the concrete initial set time; Walls concrete constuction joint should be located at design shrinkage joint place; Concreting is vibrated complete, and the reinforcing bar exposing suitable for reading is arranged, and carries out levelling with wood float by design elevation control pair body of wall is suitable for reading;
(8) concrete curing: after solidifying soil is built, should be covered in 12h and water, irrigation times should be able to keep concrete to have enough moisture states, and curing time is generally no less than 7d;
(9) form removable: when the total intensity 75% that reaches when concrete strength is above, can remove Side shuttering.
Adopt along button or the Eight characters button when assembling reinforcement in described step (three), the joining of reinforced mesh muscle is all outside colligation.
In described step (four), between reinforcing bar and template, be lined with cushion block, cushion block adopts cement mortar to make, and pad thickness should be identical with protective layer thickness, pre-buried baked wheaten cakes thread in cushion block, or ensure protective layer thickness with plastic clip.
In described step (five), before base concrete initial set, apart from basic outer edge, inside 100mm inserts Φ 20 reinforcing bars, buried depth 150mm, and the 50～80mm that leaks outside, spacing 1500mm, stable for the bearing of external scaffolding, prevent the slippage of scaffold root.
Described spilled water hole is ф 110PVC spilled water hole, spacing 3m, array pitch 2m.
As mentioned above, although represented and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Not departing under the spirit and scope of the present invention prerequisite of claims definition, can make in the form and details various variations to it.
Claims (5)
1. a construction method for reinforced concrete retaining wall, is characterized in that, comprises the steps:
(1) measure unwrapping wire: go out retaining wall center line, the basic plane position line and vertical disconnected altitude traverse according to construction drawing and coordinate point measuring, carry out plane, vertical control point;
(2) earth excavation and sand bedding course: adopt sand, stone bed course that the thick weight ratio of 60mm is 2:8, sandstone bed course vibration compacting, roll smooth, after husky, stone cushion construction completes, should check design altitude and make body of wall axis, key dimension line and reinforcing bar control line by design drawing and barricade center line stake;
(3) reinforcement foundation is made and is installed: reinforcing bar is HRB335 hot rolled ribbed steel bar, when colligation, will carefully check reinforcement placement drawing, checks accurate rear colligation; Before reinforcing bar binding, bed course mud, water should be cleaned out to the main muscle of Φ 12
200mm, horizontal distribution muscle spacing 200mm, by the spacing of reserving, first put the muscle of being advocated, after put distribution bar, simultaneously spilled water hole should coordinate installation in time;
(4) prop up vertical foundation forms, template should have enough intensity, rigidity and stability, can bear the impact force of concreting, concrete lateral pressure; When shuttering supporting, template end opening first does horizontal support, then adds diagonal brace and fix, and form joint should be tight, must not spillage, faulting of slab ends;
(5) build base concrete: concrete is answered placement layer by layer, lift height is difficult for exceeding 300mm, and each layer concrete must not build and is interrupted; The jolt ramming of Ying Qian layer concrete is not yet before initial set, and sublevel concreting, tamping is complete, and while vibrating time layer concrete, vibrating spear should be inserted people's anterior layer 50mm ~ 100mm;
(6) prop up vertical wall form: in place according to the template in the assembled outside of stencil design scheme opsition dependent line, then Φ 12 pull bars are installed, spacing 600mm, installs when stay-bolt screw rod and will protect anchor pole with former spray and be effectively connected;
(7) build walls concrete: before walls concrete is built, first evenly build the thick mortar setting course identical with walls concrete strength grade of 15mm-20mm at bottom joint part; Concrete should be by regulation and stipulation placement layer by layer, vibration compacting, and lift height is not more than 300mm; Concrete discharging point is answered dispersed placement, and body of wall should be built continuously, and every interlayer interval is no more than the concrete initial set time; Walls concrete constuction joint should be located at design shrinkage joint place; Concreting is vibrated complete, and the reinforcing bar exposing suitable for reading is arranged, and carries out levelling with wood float by design elevation control pair body of wall is suitable for reading;
(8) concrete curing: after solidifying soil is built, should be covered in 12h and water, irrigation times should be able to keep concrete to have enough moisture states, and curing time is greater than 7d;
(9) form removable: when the total intensity 75% that reaches when concrete strength is above, can remove Side shuttering.
2. the construction method of reinforced concrete retaining wall according to claim 1, is characterized in that, adopts along button or the Eight characters button when assembling reinforcement in described step (three), and the joining of reinforced mesh muscle is all outside colligation.
3. the construction method of reinforced concrete retaining wall according to claim 1; it is characterized in that; in described step (four), between reinforcing bar and template, be lined with cushion block; cushion block adopts cement mortar to make; pad thickness should be identical with protective layer thickness; pre-buried baked wheaten cakes thread in cushion block, or ensure protective layer thickness with plastic clip.
4. the construction method of reinforced concrete retaining wall according to claim 1, it is characterized in that, before the middle base concrete initial set of described step (five), apart from basic outer edge, inside 100mm inserts Φ 20 reinforcing bars, buried depth 150mm, the 50～80mm that leaks outside, spacing 1500mm, bearing for external scaffolding is stable, prevents the slippage of scaffold root.
5. the construction method of reinforced concrete retaining wall according to claim 1, is characterized in that, described spilled water hole is ф 110PVC spilled water hole, spacing 3m, array pitch 2m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310154467.7A CN104120736A (en) | 2013-04-28 | 2013-04-28 | Construction method of reinforced concrete retaining wall |
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| CN201310154467.7A CN104120736A (en) | 2013-04-28 | 2013-04-28 | Construction method of reinforced concrete retaining wall |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594378A (en) * | 2015-02-11 | 2015-05-06 | 中国水利水电第四工程局有限公司 | Retaining wall construction method |
| CN105236872A (en) * | 2015-06-29 | 2016-01-13 | 河南华泰建材开发有限公司 | Lightweight foam soil applied to roadbed filling of mountainous-area steep road section |
| CN106245673A (en) * | 2016-10-08 | 2016-12-21 | 核工业西南勘察设计研究院有限公司 | A kind of rib stake formula peg board retaining wall and construction method thereof |
| CN108756452A (en) * | 2018-04-16 | 2018-11-06 | 中国二十冶集团有限公司 | A kind of c-type closing stock ground Reinforced Concrete Retaining Walls comprehensive construction method |
| CN110984218A (en) * | 2019-12-30 | 2020-04-10 | 北京中景橙石科技股份有限公司 | Construction process for one-time pouring of decorative concrete retaining wall in wading |
| CN111395781A (en) * | 2020-04-13 | 2020-07-10 | 五冶集团上海有限公司 | Positioning structure and mounting method for building retaining wall and retaining wall building method |
| CN114059582A (en) * | 2021-11-19 | 2022-02-18 | 北京城建集团有限责任公司 | Construction process of irregular-shaped gravity retaining wall |
| CN114541469A (en) * | 2022-03-01 | 2022-05-27 | 上海电力设计院有限公司 | Flood control structure suitable for desert gobi terrain and construction method |
-
2013
- 2013-04-28 CN CN201310154467.7A patent/CN104120736A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594378A (en) * | 2015-02-11 | 2015-05-06 | 中国水利水电第四工程局有限公司 | Retaining wall construction method |
| CN105236872A (en) * | 2015-06-29 | 2016-01-13 | 河南华泰建材开发有限公司 | Lightweight foam soil applied to roadbed filling of mountainous-area steep road section |
| CN106245673A (en) * | 2016-10-08 | 2016-12-21 | 核工业西南勘察设计研究院有限公司 | A kind of rib stake formula peg board retaining wall and construction method thereof |
| CN108756452A (en) * | 2018-04-16 | 2018-11-06 | 中国二十冶集团有限公司 | A kind of c-type closing stock ground Reinforced Concrete Retaining Walls comprehensive construction method |
| CN110984218A (en) * | 2019-12-30 | 2020-04-10 | 北京中景橙石科技股份有限公司 | Construction process for one-time pouring of decorative concrete retaining wall in wading |
| CN111395781A (en) * | 2020-04-13 | 2020-07-10 | 五冶集团上海有限公司 | Positioning structure and mounting method for building retaining wall and retaining wall building method |
| CN114059582A (en) * | 2021-11-19 | 2022-02-18 | 北京城建集团有限责任公司 | Construction process of irregular-shaped gravity retaining wall |
| CN114541469A (en) * | 2022-03-01 | 2022-05-27 | 上海电力设计院有限公司 | Flood control structure suitable for desert gobi terrain and construction method |
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Application publication date: 20141029 |