CN112681363B - One-time pouring method and device for cup-shaped foundation and support - Google Patents
One-time pouring method and device for cup-shaped foundation and support Download PDFInfo
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- CN112681363B CN112681363B CN202011567763.6A CN202011567763A CN112681363B CN 112681363 B CN112681363 B CN 112681363B CN 202011567763 A CN202011567763 A CN 202011567763A CN 112681363 B CN112681363 B CN 112681363B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000004567 concrete Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000005266 casting Methods 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 31
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 4
- 238000009415 formwork Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention relates to the technical field of building construction, and discloses a one-time pouring method and a one-time pouring device for a cup-shaped foundation and a support, which comprise the following steps: step 1, prefabricating a cushion layer prefabricated member and a cushion block prefabricated member, and excavating a foundation pit; step 2, mounting the cushion layer prefabricated member at the bottom of the foundation pit, then mounting a cushion block prefabricated member above the cushion layer prefabricated member, and adjusting the height of the cushion block prefabricated member; step 3, installing a template of the cup-shaped foundation, and standing the support on the cushion block prefabricated member; and 4, pouring concrete into the template to form the cup-shaped foundation and the support column in a one-step pouring mode. By the method for one-time pouring of the cup-shaped foundation and the support, three maintenance periods of concrete pouring are reduced to one maintenance period, the construction time can be obviously shortened, the construction period is guaranteed, the integrity of the support and the cup-shaped foundation is improved, and the construction quality of the overall structure can be well controlled.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a one-time pouring method and a one-time pouring device for a cup-shaped foundation and a support.
Background
In the construction engineering of a traction substation, cup-shaped foundations and reinforced concrete pillars are used as supporting structures for the interval lines of outdoor power distribution. At present, the construction process of the support structure generally adopts a plurality of concrete procedures such as pouring a cushion layer, pouring a cup-shaped foundation, assembling and pouring a strut and the like, wherein each concrete pouring procedure needs to be maintained, and after the strength of the poured concrete meets the standard requirement, the next procedure can be carried out, so that the construction time of accumulated pouring is long, and the efficiency is low; and the poured concrete is carried out by a plurality of working procedures, so that the overall construction quality of the supporting structure is not easy to control, and the quality problem is easy to occur.
Disclosure of Invention
The invention aims to: aiming at the problems of multiple construction procedures, long construction time and difficult control of the construction quality of an integral structure in the pouring construction process of a cup-shaped foundation and a support column in the prior art, the one-time pouring method and the one-time pouring device for the cup-shaped foundation and the support column are provided, the construction procedures can be simplified, the construction time can be shortened, the construction period can be ensured, and the control on the construction quality of the integral structure can be good.
In order to achieve the purpose, the invention adopts the technical scheme that:
a one-time pouring method for a cup-shaped foundation and a support column comprises the following steps:
step 2, mounting the cushion layer prefabricated member at the bottom of the foundation pit, then mounting the cushion block prefabricated member above the cushion layer prefabricated member, and adjusting the height of the cushion block prefabricated member;
and 4, pouring concrete into the template to form the cup-shaped foundation and the support column in a one-time pouring mode.
The cushion layer prefabricated member can increase the bearing area of the cup-shaped foundation, and cast-in-place of the cushion layer is omitted by prefabricating the cushion layer prefabricated member. The cup type basis can support and fix the pillar, the cushion prefab is equivalent to cup type basis is right the support part that the pillar supported effect, and adjust the height of cushion prefab and then can adjust the elevation of pillar through prefabricating the design of cushion prefab will the support part on cup type basis is installed in advance, and will the pillar stands upright on the cushion prefab, can be with the cast-in-place replacement of cup type basis and pillar assemblage for the cast-in-place of cup type basis and pillar one shot forming.
The one-time pouring is that only one-time concrete pouring process is carried out, so that the construction process of the concrete pouring is reduced, and only one-time curing period is needed to be carried out on the one-time poured concrete, so that the three-time curing period of the concrete pouring is reduced to one-time curing period, the construction time can be obviously shortened, the construction process is simplified, the condition that the construction process is influenced by the working errors can be reduced, and the construction period is ensured; and the cup core structure is required to be arranged and the corresponding cup core template is installed in the pouring process of the cup type foundation, the support column and the cup type foundation are poured and formed at one time through the cushion block prefabricated part, the arrangement of the cup core structure is omitted, the workload and time for installing the cup core template are saved, the problems of position deviation and size deviation of the cup core are avoided, the connection strength of the support column and the cup type foundation is improved, and the construction quality of the overall structure can be well controlled.
Preferably, in the step 2, the height is adjusted by increasing or decreasing the number of the pad block preforms. The cushion block prefabricated member can adjust the total height of the cushion block through stable overlapping of the structure of the cushion block prefabricated member, and then adjust the elevation of the support column.
Preferably, in step 1, the pad block prefabricated members with different heights are prefabricated, and in step 2, the heights are adjusted by replacing the pad block prefabricated members. The height range of the adjustment through the number is increased, and the adjustment of the elevation of the support column is facilitated by using an alternative method.
Preferably, in step 3, a pull wire is tied to the support, and the pull wire is controlled to adjust the verticality of the support. Through acting as go-between, the constructor of being convenient for adjusts on subaerial the straightness that hangs down of pillar.
Preferably, the drill steel is fixed on the ground, the drill steel is sleeved on a wire grip, and the pull wire is installed on the wire grip. The stay wire is fixed through the steel drill, and the tension of the stay wire can be easily adjusted by utilizing the wire tightener, so that the perpendicularity of the support is adjusted.
Preferably, one of the steel brazes is fixed to a center line of the foundation pit. The stay wire connected through the steel drill is used as a reference line, when the projection of the stay wire relative to the ground is coincident with the central line of the foundation pit, the perpendicularity of the support is controlled to be limited in one direction for adjustment, so that the operation of adjusting the perpendicularity of the support is simple and is convenient to implement.
Preferably, the number of the pull wires is three, and the angle between the pull wires is 100-140 degrees. Through the design of the number of the stay wires and the angles among the stay wires, the workload of binding the stay wires can be controlled, and the stay wires can adjust the verticality of the support.
Preferably, in the step 3, a rod member is provided, a line weight is tied on the rod member, the line weight is used as a reference object for adjusting the perpendicularity of the support, and the perpendicularity of the support is adjusted. The rod piece and the line weight form a simple structure, and a standard verticality reference object can be obtained through simple operation.
Preferably, reinforcing steel bars are tied inside the formwork. Through the reinforcing bar is located the inside of cup type basis can strengthen the intensity quality of cup type basis.
The utility model provides a device is once only pour with pillar to cup type basis, includes bed course prefab, cushion prefab, the basic template of cup type and pillar, the bed course prefab is used for installing the bottom of foundation ditch, the cushion prefab with the template mounting on the basis of cup type is in the top of bed course prefab, the basic template of cup type centers on the cushion prefab sets up, the pillar is installed on the cushion prefab, the cushion prefab can be adjusted the elevation of pillar.
The bed course prefab can increase the lifting surface area that the cup type basis bore, through prefabricating the bed course prefab has cancelled the cast in situ to the bed course, through right the design of cushion prefab has replaced the cup type basis is right the support part of pillar, and can adjust the elevation of pillar, make the pillar is in just can assemble before the cup type basis is pour, be convenient for make the disposable method of pouring of cup type basis and pillar implement to reach and shorten the engineering time, control construction quality's purpose.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the quality problems of large perpendicularity deviation of the support and root rot of the joint part of the support and the cup-shaped foundation caused by repeated formwork supporting and repeated pouring are avoided;
2. the construction of the cup core in the cup-shaped foundation is cancelled, so that the problems of the position deviation and the size deviation of the cup core are avoided, and the construction quality of the strut and the cup-shaped foundation is improved;
3. the process of concrete pouring is reduced from three times of pouring to one time of pouring, so that the maintenance period of the poured concrete is correspondingly reduced, the construction process is simplified, the construction period is shortened, the construction cost is saved, and the construction quality is controlled.
Drawings
FIG. 1 is a flow chart of a method for one-time casting of a cup-shaped foundation and a support according to the present invention;
FIG. 2 is a schematic structural diagram of a disposable pouring device for a cup foundation and a support pillar in the embodiment;
FIG. 3 is a top view of FIG. 2;
the labels in the figure are: the method comprises the following steps of 1-cushion prefabricated members, 2-cushion prefabricated members, 3-foundation pits, 4-pillars, 5-cup-shaped foundations, 6-stay wires, 7-steel brazes, 8-tighteners, 9-rod pieces and 10-wire weights.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.
Examples
As shown in fig. 2-3, the disposable pouring device for the cup-shaped foundation and the support column of the invention comprises a cushion layer prefabricated member 1, a cushion block prefabricated member 2, a template of the cup-shaped foundation 5 and a support column 4, wherein the cushion layer prefabricated member 1 is used for being installed at the bottom of a foundation pit 3, the cushion block prefabricated member 2 and the template of the cup-shaped foundation 5 are installed above the cushion layer prefabricated member 1, the template of the cup-shaped foundation 5 is arranged around the cushion block prefabricated member 2, the support column 4 is installed on the cushion block prefabricated member 2, and the elevation of the support column 4 can be adjusted by the cushion block prefabricated member 2.
As shown in fig. 1, the present invention provides a flow chart of a method for casting a cup foundation and a pillar at one time, which comprises the following steps:
step 1: prefabricated bed course prefab 1 and cushion prefab 2, at first the roughness that will guarantee prefab itself, use the concrete that reaches design strength to pour, the height of bed course prefab 1 is set for according to measuring result and on-the-spot demand, cushion prefab 2 then can be according to the calculation result after the measurement and consider the prefabricated different height of error range, all need reach maintenance cycle and pass through qualified detection after bed course prefab 1 and cushion prefab 2 pour.
After construction measurement, according to a construction drawing, four positioning piles are arranged at a position 0.5 m away from the outer edge of the foundation pit 3, an earthwork excavation line is marked by white lime, after the excavation depth of the foundation pit 3 is determined, mechanical excavation is carried out to a position 200mm away from the bed course elevation, manual excavation is carried out to a position of a designed elevation, the shape and the relative position of the foundation pit 3 need to be consistent with the construction drawing, the bottom of the foundation pit 3 is tamped and leveled, and horizontal rechecking is carried out after the bottom of the foundation pit 3 is cleared and leveled.
Step 2: installing a cushion layer prefabricated part 1 at the bottom of a foundation pit 3, leveling the cushion layer prefabricated part 1, rechecking the elevation and the central line of the cushion layer prefabricated part 2 by using a leveling rod, installing a cushion block prefabricated part 2 above the cushion layer prefabricated part 1, and leveling the cushion block prefabricated part 2; the elevation of the pillars 4 is adjusted through increasing or reducing the number of the cushion prefabricated members 2, or the elevation of the pillars 4 is adjusted through replacing the cushion prefabricated members 2 with different heights, after the elevation of the pillars 4 reaches the design requirements, the cushion prefabricated members 2 are fixed, and the cushion prefabricated members 2 are guaranteed not to displace.
And step 3: binding steel bars in a cup-shaped foundation 5 structure according to a design drawing, ensuring the overall strength of the cup-shaped foundation 5, fixing and adjusting the positions and the elevations of the steel bars, binding two rows of steel bars on the periphery point by point when binding a bottom steel bar mesh, and binding the inner steel bars by using quincunx points; the template of the cup-shaped foundation 5 can be made into two half-shaped templates by using a steel plate or a wood plate, the size of the template is determined and rechecked according to design requirements, and the template of the cup-shaped foundation 5 is firmly fixed by using a flitch or a steel pipe during template support.
As shown in FIGS. 2 and 3, in the present embodiment, the pulling wire 6 is selected from
The mild steel wire is acted as go-between, acts as go-between three 6 systems of acting as go-between at the position apart from about 2/5 styletable on the 4 tops of pillar, and three angles of acting as go-between each other are 120, then sheathes in the steel rope at the position apart from about 1/3 styletable long on the 4 tops of pillar, uses the crane to connect the steel rope cover with pillar 4 steadily and slowly hang to foundation ditch 3 in and stand on cushion prefab 2, and the centre of a circle position to cup type basis 5 is dialled with pillar 4 to the reuse crow bar.
The method comprises the steps of arranging three steel brazes 7 corresponding to the positions of stay wires 6, enabling the steel brazes 7 to face a strut and be fixed on the ground of corresponding positions, sleeving a wire tightener 8 at one end, far away from the ground, of each steel braze 7, installing the ends, far away from the strut 4, of the three stay wires 6 on the corresponding wire tightener 8, and adjusting the relative positions of the three stay wires to enable the steel brazes 7 corresponding to one stay wire 6 to be fixed on the central line of a foundation pit 3 on the ground.
A rod piece 9 is obliquely inserted towards the support 4 on two adjacent side walls of the foundation pit 3, the rod piece 9 is a straight rod, the projection of the rod piece 9 relative to the ground is overlapped with the central line of the foundation pit 3, the top end of the rod piece is close to the support 4, the top end of the rod piece 9 is fastened with a line weight 10, and the naturally falling line weight 10 is used as a reference object for adjusting the verticality of the support 4.
When the verticality of the pillar 4 is adjusted, firstly, the stay wire 6 corresponding to the drill rod 7 on the central line is taken as a reference, the other two stay wires 6 are controlled through the wire tightener 8 to enable the stay wire 6 taken as the reference to be superposed with the central line, then the wire weight 10 is taken as the reference, the stay wire 6 on the central line is adjusted or the other two stay wires 6 are synchronously adjusted, so that the verticality of the pillar 4 meets the requirement.
And 4, step 4: pouring concrete required by design into the template of the cup-shaped foundation 5, tamping the concrete tightly, pouring and molding the cup-shaped foundation 5 and the support 4 at one time, unhooking the crane to loosen the support 4 after the concrete solidification degree meets the requirement, and finally rechecking the verticality of the support 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A one-time pouring method for a cup-shaped foundation and a support is characterized by comprising the following steps:
step 1, prefabricating a cushion layer prefabricated member (1) and a cushion block prefabricated member (2), and excavating a foundation pit (3);
step 2, mounting the cushion layer prefabricated member (1) at the bottom of the foundation pit (3), then mounting the cushion block prefabricated member (2) above the cushion layer prefabricated member (1), and adjusting the height of the cushion block prefabricated member (2);
step 3, installing a template of the cup-shaped foundation (5), and erecting a support (4) on the cushion block prefabricated part (2);
and 4, pouring concrete into the template to form the cup-shaped foundation (5) and the support (4) in a one-time pouring mode.
2. The method for one-time casting of a cup foundation and a column according to claim 1, wherein in the step 2, the height is adjusted by increasing or decreasing the number of the pad block prefabricated members (2).
3. The method for casting a cup foundation and a pillar at one time according to claim 1, wherein the cushion block prefabricated members (2) with different heights are prefabricated in the step 1, and the height is adjusted by replacing the cushion block prefabricated members (2) in the step 2.
4. The method for casting a cup foundation and a support pillar at one time according to claim 1, wherein in the step 3, a pull wire (6) is tied on the support pillar (4), and the pull wire (6) is controlled to adjust the verticality of the support pillar (4).
5. The method for casting the cup foundation and the pillar at one time according to claim 4, wherein a steel rod (7) is fixed on the ground, a wire grip (8) is sleeved on the steel rod (7), and the pull wire (6) is installed on the wire grip (8).
6. The method for one-off casting of a cup foundation and a column according to claim 5, characterized in that one said steel chisel (7) is fixed to the center line of the foundation pit (3).
7. The method for casting the cup-shaped foundation and the strut at one time according to claim 4, wherein the number of the pull lines (6) is three, and the angle between the pull lines (6) is 100-140 degrees.
8. The method for casting the cup-shaped foundation and the support post at one time according to the claim 1, characterized in that, in the step 3, a rod member (9) is arranged, a line weight (10) is tied on the rod member (9), the line weight (10) is used as a reference for adjusting the verticality of the support post (4), and the verticality of the support post (4) is adjusted.
9. The method for one-off casting of a cup foundation and a prop according to any one of claims 1 to 8, wherein reinforcing steel bars are tied in the form.
10. The utility model provides a device that is used for disposable pouring of cup type basis and pillar, its characterized in that, template and pillar (4) including bed course prefab (1), cushion prefab (2), cup type basis (5), bed course prefab (1) is used for installing in the bottom of foundation ditch (3), cushion prefab (2) with the form mounting of cup type basis (5) is in the top of bed course prefab (1), the template of cup type basis (5) centers on cushion prefab (2) set up, install pillar (4) on cushion prefab (2), cushion prefab (2) can be adjusted the elevation of pillar (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567763.6A CN112681363B (en) | 2020-12-25 | 2020-12-25 | One-time pouring method and device for cup-shaped foundation and support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567763.6A CN112681363B (en) | 2020-12-25 | 2020-12-25 | One-time pouring method and device for cup-shaped foundation and support |
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| CN112681363A CN112681363A (en) | 2021-04-20 |
| CN112681363B true CN112681363B (en) | 2022-03-25 |
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| CN116240886B (en) * | 2023-02-24 | 2025-12-05 | 中电建十一局工程有限公司 | A device and construction method for adjusting the concentricity of prestressed anchor bolt assemblies |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NL8004538A (en) * | 1980-08-11 | 1982-03-01 | Siemen Spinder Handelende Onde | Concrete anchoring foot placement method - using stack of prefabricated slabs fitted over guide bars on metal baseplate |
| CN103233479B (en) * | 2013-05-10 | 2015-02-25 | 中建七局(上海)有限公司 | Method for pouring concrete cup foundation |
| CN104631486A (en) * | 2014-12-30 | 2015-05-20 | 上海宝钢工程咨询有限公司 | Independent plinth construction method in narrow environment |
| KR102030147B1 (en) * | 2018-12-09 | 2019-10-11 | (주)케이에스아이 | Footing structure for concrete base of solar photovoltaic structure |
| CN109763508A (en) * | 2019-01-26 | 2019-05-17 | 中煤地建设工程有限公司 | A kind of domatic isolated footing structure |
| CN111851565B (en) * | 2020-06-12 | 2022-07-01 | 中煤第三建设集团机电安装工程有限责任公司 | Steel structure stand column alignment structure with cup-mouth type foundation and construction method thereof |
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