CN103174154A - Underground building bottom plate water burst well pit solid seal method and auxiliary water lowering device - Google Patents
Underground building bottom plate water burst well pit solid seal method and auxiliary water lowering device Download PDFInfo
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- CN103174154A CN103174154A CN2013100923322A CN201310092332A CN103174154A CN 103174154 A CN103174154 A CN 103174154A CN 2013100923322 A CN2013100923322 A CN 2013100923322A CN 201310092332 A CN201310092332 A CN 201310092332A CN 103174154 A CN103174154 A CN 103174154A
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Abstract
The invention discloses an underground building bottom plate water burst well pit solid seal method which comprises the follow steps that (1) an auxiliary water lowering device is prepared; (2) a concave pit is excavated on a base face, where a water burst well pit to be sealed in a solid mode by pouring concrete, of a bottom plate of an underground building; (3) a steel structure sleeve is fixedly vertically in the concave pit; (4) accumulated water is discharged through an immersible pump, concrete is poured at the same time, the immersible pump works all the time until the concrete poured into the water burst well pit enters into an initial setting stage; (5) after the concrete poured into the water burst well pit enters into the initial setting stage, immersible pump water pumping and discharging are suspended, the concrete is enabled to be gelatinized and hardened under a water soaking state; (6) after strength of the concrete reaches 60%, immersible pump water pumping and discharging are started, when the water level of the water burst well pit is lowered, a steel structure cover plate is anchored and arranged on the steel structure sleeve; (7) a steel rib net is arranged on the outer face of the upper top of the auxiliary water lowering device, and then the concrete is poured. The invention further discloses the auxiliary water lowering device which implements the method.
Description
Technical field
The present invention relates to construction engineering technical field, be specifically related to the method for building base plate water burst well under a kind of solid feud, and implement the auxiliary dewatering device of the method.
Background technology
The technician of construction engineering technical field all knows constantly having swelling to go out the ordinary concrete that build at the position, is that intensity or density all can't guarantee.Yet, basement bottom board, especially lower than the zone of groundwater table, often there are the water burst phenomenon in elevator shaft base plate, ater-casting, tower crane etc. at disturbing concrete.The conventional way of existing technology is mainly put into the mode precipitation of submersible pump in the bottom of its well.This measure, although can play a role, but still fundamentally do not solve practical problem.
Therefore, guarantee to be cast in the correlation method of water burst position concrete structure quality in the urgent need to release.
Summary of the invention
In order to address the above problem, under a kind of solid feud disclosed by the invention the method for building base plate water burst well both greatly constructability will water and water closely knit in the concrete shake at water burst position, also ensured the concrete newly watered gel hardening smoothly, thereby the structure of effectively having guaranteed to be cast in the water burst position can reach safety requirements; The invention also discloses a kind of auxiliary dewatering device of implementing the method for building base plate water burst well under this solid feud.
The technical scheme that the present invention adopts for achieving the above object is:
Under a kind of solid feud, the method for building base plate water burst well, is characterized in that, comprises the following steps:
(1) the auxiliary dewatering device of preparation, this auxiliary dewatering device comprises steel structure cover plate and steel structure sleeve;
(2) on will watering the basal plane of the water burst well that concrete seals admittedly, the base plate of underground building digs out a pit;
(3) arrangement of reinforcement in base plate extends in the pit of water burst well, and described steel structure sleeve vertical to being placed in described water burst well, and is fixed arrangement of reinforcement and steel structure sleeve;
(4) be placed into submersible pump and supporting water pipe to water burst well bottom in described steel structure sleeve, by submersible pump, water burst well internal water accumulation is discharged, simultaneously in the water burst well, steel structure sleeve periphery builds concrete, submersible pump is worked always until the concrete that is poured in the water burst well enters initial setting time, and guarantee is watered the concrete constructability shake of water burst well and watered closely knit and enter into smoothly initial setting time;
(5) water concrete in the water burst well and enter into initial setting time after, suspend the submersible pump water-pumping/draining, allow concrete gel hardening under soaked situation;
(6) reach after 60% when the described concrete intensity of step (5), start the submersible pump water-pumping/draining, when water burst well water level reduces, extract submersible pump and supporting water pipe out, in time the steel structure cover plate with described auxiliary dewatering device anchors on the steel structure sleeve that is arranged in the water burst well;
(7) prick steel mesh reinforcement at outside, top cloth on the auxiliary dewatering device of water burst well, then water concrete to flushing in water burst well surface.
As a further improvement on the present invention, described step (2) specifically also comprises following content, and the pit of described water burst well is no less than 100mm lower than described basal plane, and diameter is equal to or greater than steel structure casing inner diameter; Described step (3) specifically also comprises following content, and described steel structure sleeve is fixed on the position that is no less than 50mm lower than water burst well surface.
As a further improvement on the present invention, the steel cylinder length of described steel structure lower cartridge is no less than 100mm; Outer wall at described steel structure sleeve is provided with minimum one rubber fastening band; Be provided with surface layer arrangement of reinforcement and bottom arrangement of reinforcement in described base plate, weld respectively reinforcing bar or the steel structure hook that is connected with the bottom arrangement of reinforcement with water burst well internal surface layer at the outer wall of described steel structure sleeve.
As a further improvement on the present invention, described steel structure cover plate is to be fixed on the upper of described steel structure sleeve with 4 covers or above crab-bolt; Steel structure cover plate be provided with between steel structure sleeve minimum together with elastic sealant or O-ring seal.
As a further improvement on the present invention, described steel structure cover plate is provided with valve or chock plug.
As a further improvement on the present invention, described step (6) specifically also comprises following content, when having under water pressure conditions, when steel structure cover plate is anchored at the steel structure sleeve of water burst well, the described valve or the chock plug that are arranged on steel structure cover plate are to be in opening, to unload the low hydraulic pressure that acts on steel structure cover plate, steel structure cover plate and steel structure sleeve can be put in place in smooth anchoring, and reach waterproof and admittedly seal requirement.
As a further improvement on the present invention, being provided with the grid that block that prevent the submersible pump obstruction bottom described steel structure sleeve constructs.
A kind of auxiliary dewatering device of implementing said method, it is characterized in that, it comprises steel structure cover plate and steel structure sleeve, steel structure cover plate be provided with between steel structure sleeve minimum together with elastic sealant or O-ring seal, described steel structure cover plate be with 4 the cover or above crab-bolt be fixed on described steel structure sleeve; Be welded with reinforcing bar or steel structure hook at the outer wall of described steel structure sleeve, be provided with minimum one rubber fastening band at the outer wall of described steel structure sleeve.
As a further improvement on the present invention, described steel structure sleeve and steel structure cover plate and crab-bolt are the stainless steel material of acid-alkali-corrosive-resisting, and described steel structure lower cartridge is provided with one section and is no less than the long steel cylinder of 100mm; Described steel structure cover plate is provided with valve or chock plug.
As a further improvement on the present invention, being provided with the grid that block that prevent the submersible pump obstruction bottom described steel structure sleeve constructs.
Beneficial effect of the present invention: in the construction of underground building, at first dig out a water burst well, put into special-purpose auxiliary dewatering device and submersible pump, in the process that submersible pump draws water, fluid concrete around auxiliary dewatering device, in the time of submersible pump work, concrete enters initial setting time, suspends the submersible pump water-pumping/draining, allows concrete gel hardening under soaked situation; Submersible pump stops pumping, and after concrete hardness reached 60%, submersible pump drew water again, after water level is reduced to certain water level, extract submersible pump out, the steel steel structure cover plate in auxiliary dewatering device is anchored on steel sleeve, and prick steel mesh reinforcement on auxiliary dewatering device, watering concrete; Method in this invention guarantees to water waters closely knitly in the concrete shake at water burst position, also ensured the concrete newly watered gel hardening smoothly, thereby the structure of effectively having guaranteed to be cast in the water burst position can reach requirement as desired.
The necessary device that auxiliary dewatering device provided by the invention is implemented as the inventive method is fixed on the arrangement of reinforcement on base plate, can guarantee the smooth gel hardening of concrete at water burst position.
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is further described.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the auxiliary dewatering device structural representation of the present invention;
In figure:
1. base plate 11. base plate basal plane 12. arrangements of reinforcement
2. assist dewatering device 21. steel structure cover plate 22. steel structure sleeves
23. crab-bolt 24. elastic sealant 25. rubber fastening bands
26. block grid structure 27. reinforcing bar 3. steel mesh reinforcements.
The specific embodiment
Embodiment, referring to Fig. 1～Fig. 2, the method for building base plate 1 water burst well under solid feud provided by the invention comprises the following steps:
(1) the auxiliary dewatering device 2 of preparation, this auxiliary dewatering device 2 comprises steel structure cover plate 21 and steel structure sleeve 22, described steel structure cover plate 21 is to be fixed on the upper of described steel structure sleeve 22 with 4 covers or above crab-bolt 23; Steel structure cover plate 21 be provided with between steel structure sleeve 22 minimum together with elastic sealant 24 or O-ring seal, described steel structure cover plate 21 is provided with valve or chock plug; The steel cylinder length of described steel structure sleeve 22 bottoms is no less than 100mm; Outer wall at described steel structure sleeve 22 is provided with minimum one rubber fastening band 25; Be provided with in described steel structure sleeve 22 bottoms prevent that submersible pump from stopping up block grid structure 26;
(2) dig out a pit on the base plate of underground building will be watered the basal plane 11 of the water burst well that concrete seals admittedly, described pit is no less than 100mm lower than described basal plane, and diameter is equal to or greater than steel structure casing inner diameter; Be provided with surface layer arrangement of reinforcement 12 and bottom arrangement of reinforcement 12 in the base plate 1 of described water burst well; Outer wall at described steel structure sleeve 22 welds respectively reinforcing bar 27 or the steel structure hook that is connected with bottom arrangement of reinforcement 12 with water burst well internal surface layer arrangement of reinforcement 12;
(3) arrangement of reinforcement 12 in base plate 1 extends in the pit of water burst well, described steel structure sleeve 22 vertically is placed in described water burst well, and is weldingly fixed on lower than water burst well surface by arrangement of reinforcement 12 and is no less than on the position of 50mm;
(4) be placed into submersible pump and supporting water pipe to water burst well bottom in described steel structure sleeve 22, by submersible pump, water burst well internal water accumulation is discharged, simultaneously in the water burst well, steel structure sleeve 22 peripheries build concrete, concrete upper surface is lower than the upper surface of auxiliary dewatering device 2, submersible pump is worked always until the concrete that is poured in the water burst well enters initial setting time, and guarantee is watered the concrete constructability shake of water burst well and watered closely knit and enter into smoothly initial setting time;
(5) water concrete in the water burst well and enter into initial setting time after, suspend the submersible pump water-pumping/draining, allow concrete gel hardening under soaked situation;
(6) reach after 60% when the described concrete intensity of step (5), start the submersible pump water-pumping/draining, when water burst well water level is reduced to predetermined water level, take out submersible pump and supporting water pipe, in time the steel structure cover plate 21 with described auxiliary dewatering device 2 anchors on the steel structure sleeve 22 that is arranged in the water burst well; When having under water pressure conditions, the valve or the chock plug that are arranged on steel structure cover plate 21 are in opening, to unload the low hydraulic pressure that acts on steel structure cover plate 21, steel structure cover plate 21 and steel structure sleeve 22 can be put in place in smooth anchoring, and reach waterproof and admittedly seal requirement, after 21 anchorings of steel structure cover plate, valve-off or chock plug;
(7) prick steel mesh reinforcement 3 at outside, top cloth on the auxiliary dewatering device 2 of water burst well, water again concrete to flushing in water burst well surface, for this reason, complete the solid envelope construction to underground building base plate water burst well, during due to construction, concrete gelatinized and quality are controlled, make concrete intensity and density be guaranteed, guaranteed thus the solid envelope quality of underground building base plate water burst well.
The auxiliary dewatering device 2 of enforcement said method provided by the invention, it comprises steel structure cover plate 21 and steel structure sleeve 22, described steel structure cover plate 21 is to be fixed on described steel structure sleeve 22 with 4 covers or above crab-bolt 23; Steel structure cover plate 21 be provided with between steel structure sleeve 22 minimum together with elastic sealant 24 or O-ring seal; Described steel structure sleeve 22 and steel structure cover plate 21 and crab-bolt 23 are the stainless steel material of acid-alkali-corrosive-resisting; Described steel structure sleeve 22 bottoms are provided with one section and are no less than the long steel cylinder of 100mm; Outer wall at described steel structure sleeve 22 is provided with minimum one rubber fastening band 25; Be welded with at the outer wall of described steel structure sleeve 22 reinforcing bar 27 or the steel structure hook that matches with the internal surface layer arrangement of reinforcement 12 that is provided with and bottom arrangement of reinforcement 12 in base plate 1; Described steel structure cover plate 21 is provided with valve or chock plug, the effect of this valve or chock plug is, when having under water pressure conditions, the valve or the chock plug that are arranged on steel structure cover plate 21 are in opening, to unload the low hydraulic pressure that acts on steel structure cover plate 21, make steel structure cover plate 21 and steel structure sleeve 22 smoothly anchorings put in place, and reach waterproof and admittedly seal requirement.
The present invention is not limited to above-mentioned embodiment, adopts or approximation method and device identical with the above embodiment of the present invention, and other methods that are used for building base plate water burst well under solid feud that obtain reach auxiliary dewatering device, all within protection scope of the present invention.
Claims (10)
1. a method of consolidating building base plate water burst well under the feud, is characterized in that, comprises the following steps:
(1) the auxiliary dewatering device of preparation, this auxiliary dewatering device comprises steel structure cover plate and steel structure sleeve;
(2) on will watering the basal plane of the water burst well that concrete seals admittedly, the base plate of underground building digs out a pit;
(3) arrangement of reinforcement in base plate extends in the water burst well, and described steel structure sleeve vertical in the pit that is placed on described water burst well, and is fixed arrangement of reinforcement and steel structure sleeve;
(4) be placed into submersible pump and supporting water pipe to water burst well bottom in described steel structure sleeve, by submersible pump, water burst well internal water accumulation is discharged, simultaneously in the water burst well, steel structure sleeve periphery builds concrete, submersible pump is worked always until the concrete that is poured in the water burst well enters initial setting time, and guarantee is watered the concrete constructability shake of water burst well and watered closely knit and enter into smoothly initial setting time;
(5) water concrete in the water burst well and enter into initial setting time after, suspend the submersible pump water-pumping/draining, allow concrete gel hardening under soaked situation;
(6) reach after 60% when the described concrete intensity of step (5), start the submersible pump water-pumping/draining, when water burst well water level reduces, take out submersible pump and supporting water pipe, in time the steel structure cover plate with described auxiliary dewatering device anchors on the steel structure sleeve that is arranged in the water burst well;
(7) prick steel mesh reinforcement at outside, top cloth on the auxiliary dewatering device of water burst well, then water concrete to flushing in water burst well surface.
2. the method for building base plate water burst well under solid feud according to claim 1, it is characterized in that, described step (2) specifically also comprises following content, and the pit of described water burst well is no less than 100mm lower than described basal plane, and diameter is equal to or greater than steel structure casing inner diameter; Described step (3) specifically also comprises following content, and described steel structure sleeve is fixed on the position that is no less than 50mm lower than water burst well surface.
3. the method for building base plate water burst well under solid feud according to claim 1, is characterized in that, the steel cylinder length of described steel structure lower cartridge is no less than 100mm; Outer wall at described steel structure sleeve is provided with minimum one rubber fastening band; Be provided with surface layer arrangement of reinforcement and bottom arrangement of reinforcement in described base plate, weld respectively reinforcing bar or the steel structure hook that is connected with the bottom arrangement of reinforcement with water burst well internal surface layer at the outer wall of described steel structure sleeve.
4. the method for building base plate water burst well under solid feud according to claim 1, is characterized in that, described steel structure cover plate is to be fixed on the upper of described steel structure sleeve with 4 covers or above crab-bolt; Steel structure cover plate be provided with between steel structure sleeve minimum together with elastic sealant or O-ring seal.
5. the method for building base plate water burst well under solid feud according to claim 1, is characterized in that, described steel structure cover plate is provided with valve or chock plug.
6. the method for building base plate water burst well under solid feud according to claim 5, it is characterized in that, described step (6) specifically also comprises following content, when having under water pressure conditions, when steel structure cover plate was anchored at the steel structure sleeve of water burst well, the described valve or the chock plug that are arranged on steel structure cover plate were to be in opening, to unload the low hydraulic pressure that acts on steel structure cover plate, make steel structure cover plate and steel structure sleeve smoothly anchoring put in place, and reach waterproof and admittedly seal requirement.
7. the method for building base plate water burst well under solid feud according to claim 1, is characterized in that, is provided with the grid that block that prevent the submersible pump obstruction and constructs bottom described steel structure sleeve.
8. auxiliary dewatering device of implementing one of claim 1-7 described method, it is characterized in that, it comprises steel structure cover plate and steel structure sleeve, steel structure cover plate be provided with between steel structure sleeve minimum together with elastic sealant or O-ring seal, described steel structure cover plate be with 4 the cover or above crab-bolt be fixed on described steel structure sleeve; Be welded with reinforcing bar or steel structure hook at the outer wall of described steel structure sleeve, be provided with minimum one rubber fastening band at the outer wall of described steel structure sleeve.
9. auxiliary dewatering device according to claim 8, is characterized in that, described steel structure sleeve and steel structure cover plate and crab-bolt are the stainless steel material of acid-alkali-corrosive-resisting, and described steel structure lower cartridge is provided with one section and is no less than the long steel cylinder of 100mm; Described steel structure cover plate is provided with valve or chock plug.
10. auxiliary dewatering device according to claim 8, is characterized in that, is provided with the grid that block that prevent the submersible pump obstruction and constructs bottom described steel structure sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100923322A CN103174154A (en) | 2013-03-21 | 2013-03-21 | Underground building bottom plate water burst well pit solid seal method and auxiliary water lowering device |
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| CN2013100923322A CN103174154A (en) | 2013-03-21 | 2013-03-21 | Underground building bottom plate water burst well pit solid seal method and auxiliary water lowering device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104060622A (en) * | 2014-07-14 | 2014-09-24 | 云南建工第四建设有限公司 | Method for discharging water in pint through steel bucket in pit |
| CN106638638A (en) * | 2016-12-30 | 2017-05-10 | 上海建工二建集团有限公司 | Large-diameter casing pipe process foundation pit emergency system and construction method thereof |
| CN108755931A (en) * | 2018-07-04 | 2018-11-06 | 中铁隧道局集团有限公司 | The Long span precast assembly bottom plate and its splicing structure and installation method of a kind of same stake connection |
| CN109723071A (en) * | 2019-02-23 | 2019-05-07 | 杭州昂创科技有限公司 | The construction method of the double-deck steel drum Yield rainfall relation system built in basement bottom plate rear pouring tape |
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| CN202466607U (en) * | 2011-12-27 | 2012-10-03 | 中建八局第四建设有限公司 | Water-descending barrel |
| CN202787334U (en) * | 2012-07-16 | 2013-03-13 | 杭州萧宏建设集团有限公司 | Sealing structure of deep well casing used during tunnel construction |
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| JP2006194031A (en) * | 2005-01-17 | 2006-07-27 | Ps Mitsubishi Construction Co Ltd | Pillar construction method |
| CN201172828Y (en) * | 2008-03-19 | 2008-12-31 | 山西第六建筑有限公司 | Well-covering device for dewatering well |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104060622A (en) * | 2014-07-14 | 2014-09-24 | 云南建工第四建设有限公司 | Method for discharging water in pint through steel bucket in pit |
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| CN106638638A (en) * | 2016-12-30 | 2017-05-10 | 上海建工二建集团有限公司 | Large-diameter casing pipe process foundation pit emergency system and construction method thereof |
| CN108755931A (en) * | 2018-07-04 | 2018-11-06 | 中铁隧道局集团有限公司 | The Long span precast assembly bottom plate and its splicing structure and installation method of a kind of same stake connection |
| CN108755931B (en) * | 2018-07-04 | 2024-01-16 | 中铁隧道局集团有限公司 | Large-span assembly structure connected with pile and installation method thereof |
| CN109723071A (en) * | 2019-02-23 | 2019-05-07 | 杭州昂创科技有限公司 | The construction method of the double-deck steel drum Yield rainfall relation system built in basement bottom plate rear pouring tape |
| CN109723071B (en) * | 2019-02-23 | 2021-02-09 | 杭州昂创科技有限公司 | Construction method of double-layer steel drum drainage system built in basement floor post-cast strip |
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Application publication date: 20130626 |