CN115110539B - Construction method for single-side formwork around water collection pit - Google Patents
Construction method for single-side formwork around water collection pit Download PDFInfo
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- CN115110539B CN115110539B CN202210787492.8A CN202210787492A CN115110539B CN 115110539 B CN115110539 B CN 115110539B CN 202210787492 A CN202210787492 A CN 202210787492A CN 115110539 B CN115110539 B CN 115110539B
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- bottom plate
- side wall
- pouring
- vertical supporting
- vertical
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- 238000009415 formwork Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 title description 3
- 230000002093 peripheral effect Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/22—Lining sumps in trenches or other foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
A method for constructing a single-side formwork around a water pit comprises the following steps: s1, picking up the bottom of a foundation pit, and burying an anti-floating base for installing a vertical supporting screw; s2, pouring a foundation pit cushion layer, and installing a foundation pit bottom plate and side wall steel bars; s3, installing a side wall template and a main secondary ridge of the side wall template, and connecting a vertical supporting screw and an anti-floating base; s4, sequentially installing four supporting screws and connecting the four supporting screws with the main edges of the side wall template; s5, pouring the bottom plate concrete to 20mm below the top elevation of the bottom plate; s6, pouring a first section of side wall concrete before the initial setting of the bottom plate concrete; and S7, sequentially and circularly pouring the peripheral side walls to the wall top standard, and S8, removing the peripheral supporting screw rods and the vertical supporting screw rods, wherein the characteristics of self weight of the bottom plate concrete and mutual stress of the peripheral side walls are fully utilized, so that the bottom plate concrete is ensured not to cause floating of the peripheral templates on the inner side, and the conditions of deviation, expansion and die explosion of the peripheral templates are avoided.
Description
Technical Field
The invention relates to the field of building construction, in particular to a method for constructing a single-side formwork around a water collection pit.
Background
In the area with better drawing conditions, the elevator shaft and the water collecting pit are mostly excavated by the original groove, and concrete is poured by the inner test four-side supporting mould. But the unilateral formwork is inconvenient to reinforce, and the elevator shaft and the water pit bottom plate are generally thicker by more than 300mm, so that the conditions of the formwork floating, the formwork expanding and the like are easily caused in the concrete pouring process. Therefore, the later side wall is seriously deviated from the side line and the bottom plate is extremely thick, so that large-area picking, repairing and reworking are caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a method for constructing a single-side formwork around a water pit, which comprises the following steps:
s1, picking up the bottom of a foundation pit, and burying an anti-floating base for installing a vertical supporting screw;
s2, pouring a foundation pit cushion layer, and installing a foundation pit bottom plate and side wall steel bars;
s3, installing a side wall template and a main secondary ridge of the side wall template, and connecting a vertical supporting screw and an anti-floating base;
s4, sequentially installing four supporting screws and connecting the four supporting screws with the main edges of the side wall template;
s5, pouring the bottom plate concrete to 20mm below the top elevation of the bottom plate;
s6, pouring a first section of side wall concrete before the initial setting of the bottom plate concrete;
s7, sequentially and circularly pouring the side walls around to the elevation of the wall top;
s8, removing the peripheral support screws and the vertical support screws.
Preferably, in step S1, the anti-floating base is a 3mm thick steel plate, and a vertical nut matched with the vertical supporting screw is welded at the middle part.
Preferably, in step S3, the diameter of the vertical supporting screw rod is 60mm, the bottom thread length is 100mm, and the vertical supporting screw rod is in threaded connection with the vertical screw cap on the anti-floating base.
Preferably, in step S4, the diameter of the four-sided support screw is 48mm.
Preferably, in step S8, the peripheral support screws and the vertical support screws are rotatably connected by using iron pins.
Preferably, in step S8, the central position of the peripheral supporting screw rod is slidably connected with the vertical supporting screw rod by adopting a circular ring, and pressing spring pin pieces are installed at each connecting position on the vertical supporting screw rod.
Compared with the prior art, the invention has the beneficial effects that: the characteristics of the self weight of the bottom plate concrete and the mutual stress of the peripheral side walls are fully utilized, the bottom plate concrete can be ensured not to cause the floating of the peripheral templates at the inner side, and the conditions of deviation, expansion and die explosion of the peripheral templates can be avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is an elevation view of the present invention;
FIG. 2 is a top plan view of the present invention;
FIG. 3 is a schematic view of an anti-floating base;
FIG. 4 is a schematic view of a four-sided support screw;
fig. 5 is a schematic diagram of the connection of the vertical support screw to the vertical nut.
In the figure: 1. the vertical support screw rod, 2, support screw rod all around, 3, anti floating base, 4, ring, 5, vertical nut, 6, the spring pin piece of pressing.
Detailed Description
The technical scheme of the invention is described in detail below through the drawings, but the protection scope of the invention is not limited to the embodiments.
Referring to fig. 1 to 5, a method for constructing a single-side formwork around a water pit includes the following steps:
s1, picking up the bottom of a foundation pit, burying an anti-floating base 3 for installing a vertical supporting screw 1, wherein the anti-floating base 3 mainly plays a role in the pouring process of a concrete bottom plate, fully utilizing the dead weight of the concrete of the bottom plate, and avoiding the floating of a template through the connection of the vertical supporting screw 1, the surrounding supporting screws and the surrounding templates;
s2, pouring a foundation pit cushion layer, and installing a foundation pit bottom plate and side wall steel bars;
s3, installing a side wall template and a primary and secondary ridge of the side wall template, and connecting the vertical supporting screw 1 and the anti-floating base 3: the vertical supporting screw 1 and the anti-floating base 3 are reliably connected and fixed in a mode similar to nuts and bolts, so that anti-floating of the peripheral templates in the later stage is facilitated;
s4, sequentially installing four support screws 2 and connecting the four support screws with a main ridge of the side wall template; the peripheral support screw rods 2 are mainly used as inner supports for template reinforcement, the peripheral support screw rods 2 are connected into a whole through the central vertical support screw rod 1, meanwhile, the structural form of the umbrella is fully used for reference, and the peripheral support screw rods 2 in the later stage are convenient to recycle;
s5, pouring the bottom plate concrete to 20mm below the top elevation of the bottom plate, ensuring that the side wall concrete is poured after the bottom plate concrete is quickly initially set, avoiding the floating of the template caused by overhigh one-time pouring concrete,
s6, pouring a first section of side wall concrete before the initial setting of the bottom plate concrete;
s7, sequentially and circularly pouring the peripheral side walls to the elevation of the wall top, and uniformly pouring the periphery to the elevation of the top in a layered manner, so that the stress of each peripheral supporting screw rod 2 is ensured to be reasonable;
s8, removing the peripheral support screws 2 and the vertical support screws 1.
In addition, in the invention, the anti-floating base 3 is a 3mm thick steel plate, the middle part is welded with a vertical screw cap 5 matched with the vertical supporting screw 1, the diameter of the vertical supporting screw 1 is 60mm, the bottom thread length is 100mm, the anti-floating base 3 is in threaded connection with the vertical screw cap 5, the diameter of the surrounding supporting screw 2 is 48mm, the surrounding supporting screw 2 and the vertical supporting screw 1 are in rotary connection through iron pins, the rotary connection is convenient for the effective connection and detachment of the surrounding supporting screw 2 and the vertical supporting screw 1, the central position of the surrounding supporting screw 2 is in sliding connection with the vertical supporting screw 1 through a circular ring 4 (umbrella connecting similar component), and each connecting position on the vertical supporting screw 1 is provided with a pressing spring pin piece 6, the pressing spring pin piece 6 is convenient for temporarily fixing the elevation of the surrounding supporting screw 2 and preventing the upward sliding, so that the stability of a template supporting system is influenced.
The invention fully uses the self weight of the bottom plate concrete and the mutual stress of the peripheral side walls, not only can ensure that the bottom plate concrete does not cause the floating of the peripheral templates at the inner side, but also can not cause the conditions of deviation, expansion and explosion of the peripheral templates, and the internal support system of the templates has simpler structure and is convenient to install and detach; embedding the anti-floating bottom plate, and avoiding adopting other vertical anti-floating reinforcement measures again; and repeated turnover can be performed for multiple times, so that turnover rate is improved, and construction cost is reduced.
As above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The method for constructing the single-side formwork around the water pit is characterized by comprising the following steps of:
s1, picking up the bottom of a foundation pit, and burying an anti-floating base for installing a vertical supporting screw;
s2, pouring a foundation pit cushion layer, and installing a foundation pit bottom plate and side wall steel bars;
s3, installing a side wall template and a main secondary ridge of the side wall template, and connecting a vertical supporting screw and an anti-floating base;
s4, sequentially installing four supporting screws and connecting the four supporting screws with the main edges of the side wall templates; the peripheral support screw rods are used as inner supports for reinforcing the templates, and are connected into a whole through the central vertical support screw rods, meanwhile, the structural form of the umbrella is fully referred, and the peripheral support screw rods in the later period are convenient to recycle;
s5, pouring the bottom plate concrete to 20mm below the top elevation of the bottom plate;
s6, pouring a first section of side wall concrete before the initial setting of the bottom plate concrete;
s7, sequentially and circularly pouring the side walls around to the elevation of the wall top;
s8, removing the peripheral support screws and the vertical support screws.
2. The method for constructing the single-side formwork around the water pit according to claim 1, which is characterized in that: in the step S1, the anti-floating base is a 3mm thick steel plate, and a vertical screw cap matched with a vertical supporting screw rod is welded at the middle part of the anti-floating base.
3. The method for constructing the single-side formwork around the water pit according to claim 1, which is characterized in that: in the step S3, the diameter of the vertical supporting screw rod is 60mm, the bottom thread length is 100mm, and the vertical supporting screw rod is in threaded connection with a vertical screw cap on the anti-floating base.
4. The method for constructing the single-side formwork around the water pit according to claim 1, which is characterized in that: in the step S4, the diameter of the four-side support screw rod is 48mm.
5. The method for constructing the single-side formwork around the water pit according to claim 1, which is characterized in that: in the step S8, the four supporting screws and the vertical supporting screws are rotationally connected by adopting iron pins.
6. The method for constructing the single-side formwork around the water pit according to claim 1, which is characterized in that: in the step S8, the center positions of the four-side supporting screw rods are connected with the vertical supporting screw rods in a sliding mode through a circular ring, and pressing spring pin pieces are arranged at all connecting positions on the vertical supporting screw rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787492.8A CN115110539B (en) | 2022-07-06 | 2022-07-06 | Construction method for single-side formwork around water collection pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787492.8A CN115110539B (en) | 2022-07-06 | 2022-07-06 | Construction method for single-side formwork around water collection pit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115110539A CN115110539A (en) | 2022-09-27 |
| CN115110539B true CN115110539B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210787492.8A Active CN115110539B (en) | 2022-07-06 | 2022-07-06 | Construction method for single-side formwork around water collection pit |
Country Status (1)
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| CN (1) | CN115110539B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164680A (en) * | 2000-06-08 | 2001-06-19 | Hashi Sangyo Kk | Method of manufacturing thermal insulating concrete product and concrete product |
| JP2005200131A (en) * | 2004-01-14 | 2005-07-28 | Mitsubishi Electric Corp | Elevator pit structure |
| CN101538894A (en) * | 2009-03-20 | 2009-09-23 | 湖南省沙坪建筑有限公司 | Construction method for resisting uplift in internal mold of concrete box |
| CN202954570U (en) * | 2012-11-22 | 2013-05-29 | 中国建筑第二工程局有限公司 | High-rise building construction sump pit template |
| CN206220111U (en) * | 2016-11-21 | 2017-06-06 | 中建八局第四建设有限公司 | A kind of catch pit fixing templates |
| CN109736353A (en) * | 2018-12-28 | 2019-05-10 | 杭州江润科技有限公司 | Construction method of composite single-side formwork deep foundation pit basement outer wall |
| CN210315625U (en) * | 2019-05-22 | 2020-04-14 | 青岛东捷建设工程有限公司 | Anti reinforcement structure that floats of sump pit template |
| CN211285665U (en) * | 2019-11-29 | 2020-08-18 | 江苏沙家浜建筑有限公司 | Well template device convenient to vibrate and capable of reducing pressure and resisting floating |
| CN112096054A (en) * | 2020-08-27 | 2020-12-18 | 中国二十冶集团有限公司 | Simple formwork support and integral casting method for large-depth elevator shaft and collector well in building bottom plate |
| CN112359874A (en) * | 2020-11-18 | 2021-02-12 | 中建八局第三建设有限公司 | Construction method of basement sump structure |
-
2022
- 2022-07-06 CN CN202210787492.8A patent/CN115110539B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164680A (en) * | 2000-06-08 | 2001-06-19 | Hashi Sangyo Kk | Method of manufacturing thermal insulating concrete product and concrete product |
| JP2005200131A (en) * | 2004-01-14 | 2005-07-28 | Mitsubishi Electric Corp | Elevator pit structure |
| CN101538894A (en) * | 2009-03-20 | 2009-09-23 | 湖南省沙坪建筑有限公司 | Construction method for resisting uplift in internal mold of concrete box |
| CN202954570U (en) * | 2012-11-22 | 2013-05-29 | 中国建筑第二工程局有限公司 | High-rise building construction sump pit template |
| CN206220111U (en) * | 2016-11-21 | 2017-06-06 | 中建八局第四建设有限公司 | A kind of catch pit fixing templates |
| CN109736353A (en) * | 2018-12-28 | 2019-05-10 | 杭州江润科技有限公司 | Construction method of composite single-side formwork deep foundation pit basement outer wall |
| CN210315625U (en) * | 2019-05-22 | 2020-04-14 | 青岛东捷建设工程有限公司 | Anti reinforcement structure that floats of sump pit template |
| CN211285665U (en) * | 2019-11-29 | 2020-08-18 | 江苏沙家浜建筑有限公司 | Well template device convenient to vibrate and capable of reducing pressure and resisting floating |
| CN112096054A (en) * | 2020-08-27 | 2020-12-18 | 中国二十冶集团有限公司 | Simple formwork support and integral casting method for large-depth elevator shaft and collector well in building bottom plate |
| CN112359874A (en) * | 2020-11-18 | 2021-02-12 | 中建八局第三建设有限公司 | Construction method of basement sump structure |
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| Publication number | Publication date |
|---|---|
| CN115110539A (en) | 2022-09-27 |
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