CN102345301A - New method for plugging dewatering well in basement - Google Patents
New method for plugging dewatering well in basement Download PDFInfo
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- CN102345301A CN102345301A CN2011101909395A CN201110190939A CN102345301A CN 102345301 A CN102345301 A CN 102345301A CN 2011101909395 A CN2011101909395 A CN 2011101909395A CN 201110190939 A CN201110190939 A CN 201110190939A CN 102345301 A CN102345301 A CN 102345301A
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Abstract
The invention discloses a new method for plugging a dewatering well in a basement. The method comprises the following steps: inserting a sand-free concrete pipe into the ground for 30 meters; jacketing a steel pipe on the sand-free concrete pipe and placing a dewatering pump for draining in the steel pipe; arranging a water-stopping ring at the middle part outside the steel pipe, wherein the water-stopping ring is formed by a steel plate with a diameter of Phi 1000*4; uniformly welding short reinforcing steel bars along the inner wall of the steel pipe in the position at least 800mm away from the top in the steel pipe, thereby forming a bracket; pouring concrete at the periphery of the steel pipe so as to form a swirl well base plate, wherein a pouring height is parallel to the height of the steel pipe; taking the dewatering pump out of the steel pipe after the concrete reaches a certain strength; placing a circular steel plate to the position of the bracket formed by the short reinforcing steel bars, and plugging a pipe opening; polishing beveled edges on the periphery of the circular steel plate and tightly welding the beveled edges and the inner wall of the steel pipe; pouring concrete into the steel pipe, wherein the pouring height is at least 20mm away from the top of the pipe opening; and after solidifying the concrete, covering with the circular steel plate, polishing beveled edges on the periphery of the circular steel plate and tightly welding the beveled edges and the inner wall of the steel pipe, and then flatting and sealing the top with cement plaster. The new method provided by the invention is used for efficiently solving the problem of plugging the dewatering well in the basement.
Description
Technical field
The invention relates to a kind of job practices of draining in the civil construction, especially relate to precipitation well method for blocking in a kind of basement.
Background technology
In the prior art, all to carry out dewatering construction before the soil excavation, and run through the whole process of basement civil engineering, reach 100% up to the basement bottom board concrete strength.Tangshan Wen Feng 4300 special heavy plate engineering eddy flow wells for example, according to the precipitation needs, 12 of eddy flow well peripheral hardwares, in establish a glance precipitation well, the eddy flow well is circular underground structure, mainly by inside and outside tube, platform, compositions such as slag runner adopt reverse construction.External diameter Φ 14m, urceolus wall thickness 1m, inner core external diameter Φ 4.1m, inner core wall thickness 300mm, absolute altitude-25.750m at the bottom of the base plate plate, base plate thickness 2m.Bed course C10 concrete, eddy flow well main body adopt the C30.P8 waterproof concrete, and back-grouting adopts C35, and the drawback of said method is when building eddy flow shaft bottom board concrete, and underplate concrete bleeds in the well easily, causes the precipitation well to stop up and no longer works.
Summary of the invention
In order to overcome the precipitation well blocking problem that exists in the above-mentioned prior art, the invention provides precipitation well shutoff new method in a kind of basement, constitute by following step:
1. the insertion of sand concrete free pipe is underground, reach 30m deeply;
2. on the sand concrete free pipe, overlap steel pipe, place the precipitation pump drainage in the steel pipe;
3. in the middle part, the outside of above-mentioned steel pipe seal ring is set, said seal ring is that the steel plate of diameter of phi 1000 * 4 constitutes;
4. in steel pipe, be no less than the 800mm place,, constitute carriage along the even welding short steel rod of steel pipe inwall apart from end face;
5. constitute eddy flow shaft bottom plate at the peripheral fluid concrete of steel pipe, the cast height is parallel with the height of steel pipe, treat that concrete reaches intensity after, precipitation pump in the steel pipe is taken out;
6. get circular steel plate, transfer the cradle that constitutes to bar dowel, the shutoff mouth of pipe;
7. circular steel plate periphery is polished groove, groove and steel pipe inwall are carried out tight welding;
8. concreting in steel pipe is poured into a mould highly and is ended for be no less than 20mm apart from mouth of pipe upper top;
9. after treating concrete setting, get circular steel plate and cover, the periphery of said circular steel plate polish groove, and groove and steel pipe inwall are carried out tight welding, binds with cement mortar is floating in the back.
The said step 1. external diameter of middle sand concrete free pipe is Φ 500mm.
The said step 2. length of middle steel pipe is Φ 600 * 8 for the 2.5m diameter.
The said step 4. quantity of middle welding short steel rod is 4,, the specification of said bar dowel is long 50mm, diameter is Φ 12mm.
Said step 6. in the specification of circular steel plate be diameter of phi 580mm thickness 10mm.
The invention has the beneficial effects as follows: guaranteeing that bottom concrete is built in the well of back continues precipitation, prevents underground water because base plate is split on pressure effect top, and shut-in well ensures the quality of products easily, guarantees that base plate is water-tight.
Description of drawings
Fig. 1 is a precipitation well sealed condition structural representation of the present invention.
Reference numeral: 1-iron wire 2-bar dowel 3-steel plate 4-steel pipe 5-sand concrete free pipe
6-cement mortar 7-concrete eight-seal ring 9 weld seam 10-
The reinforcing bar fixed mount
The specific embodiment
In order further to understand the present invention, below in conjunction with accompanying drawing the present invention is done to further describe:
See accompanying drawing 1; Precipitation well method for blocking in a kind of basement of the present invention; When embodiment of the present invention, a reinforcing bar fixed mount 10 to be set earlier; After setting support; At first that 5 insertions of sand concrete free pipe are underground, reach 30m deeply, the external diameter of said sand concrete free pipe 5 is Φ 500mm; On sand concrete free pipe 5, overlap steel pipe 4 then, the length of said steel pipe is Φ 600 * 8 for the 2.5m diameter; After having overlapped steel pipe 4, just can in steel pipe 4, place the precipitation pump and carry out draining; In the middle part, the outside of above-mentioned steel pipe 4 seal ring 8 is set then, the specification of said seal ring 8 is that the steel plate of diameter of phi 1000 * 4 constitutes; After seal ring has been set, in steel pipe 4, be no less than the 800mm place apart from end face, along the even welding short steel rod 2 of steel pipe 4 inwalls, the quantity of said welding short steel rod 2 is 4, and specification is long 50mm, and diameter is Φ 12mm, and 4 bar dowels have just constituted a carriage; At the peripheral fluid concrete 7 of steel pipe 4, constituted eddy flow shaft bottom plate then, the height of said concrete seven cast is parallel with the height of steel pipe 4, treat concrete seven solidify reach 100 intensity after, just the precipitation pumps in the steel pipe 4 can be taken out; Get a circular steel plate 3 then, with iron wire 1 it is transferred the cradle that constitutes to 4 bar dowels 2, carry out the shutoff mouth of pipe, the specification of said circular steel plate 3 is diameter of phi 580mm thickness 10mm; For the inwall of circular steel plate 3 with steel pipe sealed, require elder generation that the periphery of circular steel plate 3 is polished a circle groove, and then the periphery of inner wall of groove and steel pipe is carried out tight welding like the weld seam 9 among the figure, reach the effect of sealing; Just can be in steel pipe after the welding concreting, the height of concrete pouring ends for be no less than 20mm apart from mouth of pipe upper top; After treating concrete setting, get again one the same with above-mentioned specification, the circular steel plate that its periphery polish groove covers; Then its groove and steel pipe inwall are carried out tight welding; After welding, bind with cement mortar is floating again, promptly realize the purpose of precipitation well of the present invention shutoff.
The above-mentioned specific embodiment of the present invention just schematically; Be not restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Do not breaking away under the scope situation that aim of the present invention and claim protect; Can also make the conversion of a lot of forms, these all belong within protection scope of the present invention.
Claims (5)
1. the interior precipitation well method for blocking of basement is characterized in that, comprises the steps:
1. the insertion of sand concrete free pipe is underground, reach 30m deeply;
2. on the sand concrete free pipe, overlap steel pipe, place the precipitation pump drainage in the steel pipe;
3. in the middle part, the outside of above-mentioned steel pipe seal ring is set, said seal ring is that the steel plate of diameter of phi 1000 * 4 constitutes;
4. in steel pipe, be no less than the 800mm place,, constitute carriage along the even welding short steel rod of steel pipe inwall apart from end face;
5. constitute eddy flow shaft bottom plate at the peripheral fluid concrete of steel pipe, the cast height is parallel with the height of steel pipe, treat that concrete reaches intensity after, precipitation pump in the steel pipe is taken out;
6. get circular steel plate, transfer the cradle that constitutes to bar dowel, the shutoff mouth of pipe;
7. circular steel plate periphery is polished groove, groove and steel pipe inwall are carried out tight welding;
8. concreting in steel pipe is poured into a mould highly and is ended for be no less than 20mm apart from mouth of pipe upper top;
9. after treating concrete setting, get circular steel plate and cover, the periphery of said circular steel plate polish groove, and groove and steel pipe inwall are carried out tight welding, binds with cement mortar is floating in the back.
2. precipitation well method for blocking in the basement according to claim 1 is characterized in that, the said step 1. external diameter of middle sand concrete free pipe is Φ 500mm.
3. precipitation well method for blocking in the basement according to claim 1 is characterized in that, the said step 2. length of middle steel pipe is Φ 600 * 8 for the 2.5m diameter.
4. precipitation well method for blocking in the basement according to claim 1 is characterized in that, the said step 4. quantity of middle welding short steel rod is 4,, the specification of said bar dowel is long 50mm, diameter is Φ 12mm.
5. precipitation well method for blocking in the basement according to claim 1 is characterized in that, said step 6. in the specification of circular steel plate be diameter of phi 580mm thickness 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101909395A CN102345301A (en) | 2011-07-08 | 2011-07-08 | New method for plugging dewatering well in basement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101909395A CN102345301A (en) | 2011-07-08 | 2011-07-08 | New method for plugging dewatering well in basement |
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| CN102345301A true CN102345301A (en) | 2012-02-08 |
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| CN2011101909395A Pending CN102345301A (en) | 2011-07-08 | 2011-07-08 | New method for plugging dewatering well in basement |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485352A (en) * | 2013-09-30 | 2014-01-01 | 上海建工七建集团有限公司 | Construction method for blocking depressurization well by adopting accelerated cement |
| CN103758144A (en) * | 2014-02-19 | 2014-04-30 | 中亿丰建设集团股份有限公司 | Tube well used for unwatering and pressure-reducing drainage and drainage method of tube well |
| CN105178364A (en) * | 2015-06-29 | 2015-12-23 | 江苏五环建设有限公司 | Underground building light precipitation well point post-cast strip anti-seepage construction method |
| CN109577354A (en) * | 2018-12-04 | 2019-04-05 | 江苏兴厦建设工程集团有限公司 | A kind of vacuum tube well shut-in well, water stop construction method |
| CN111042166A (en) * | 2019-12-04 | 2020-04-21 | 中铁十二局集团第二工程有限公司 | Spiral plugging device and method for deep foundation pit dewatering well |
| CN111501805A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Foundation pit bottom plate reserved precipitation plugging device and application method thereof |
| CN111501858A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Construction method for detecting leakage by using foundation pit bottom plate dewatering well plugging device |
| CN114703878A (en) * | 2022-05-07 | 2022-07-05 | 中建八局第二建设有限公司 | Plugging and draining device for dewatering well and construction method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485352A (en) * | 2013-09-30 | 2014-01-01 | 上海建工七建集团有限公司 | Construction method for blocking depressurization well by adopting accelerated cement |
| CN103758144A (en) * | 2014-02-19 | 2014-04-30 | 中亿丰建设集团股份有限公司 | Tube well used for unwatering and pressure-reducing drainage and drainage method of tube well |
| CN103758144B (en) * | 2014-02-19 | 2015-07-22 | 中亿丰建设集团股份有限公司 | Tube well used for unwatering and pressure-reducing drainage and drainage method of tube well |
| CN105178364A (en) * | 2015-06-29 | 2015-12-23 | 江苏五环建设有限公司 | Underground building light precipitation well point post-cast strip anti-seepage construction method |
| CN105178364B (en) * | 2015-06-29 | 2017-04-19 | 江苏五环建设有限公司 | Underground building light precipitation well point post-cast strip anti-seepage construction method |
| CN109577354A (en) * | 2018-12-04 | 2019-04-05 | 江苏兴厦建设工程集团有限公司 | A kind of vacuum tube well shut-in well, water stop construction method |
| CN111042166A (en) * | 2019-12-04 | 2020-04-21 | 中铁十二局集团第二工程有限公司 | Spiral plugging device and method for deep foundation pit dewatering well |
| CN111501805A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Foundation pit bottom plate reserved precipitation plugging device and application method thereof |
| CN111501858A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Construction method for detecting leakage by using foundation pit bottom plate dewatering well plugging device |
| CN114703878A (en) * | 2022-05-07 | 2022-07-05 | 中建八局第二建设有限公司 | Plugging and draining device for dewatering well and construction method |
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Application publication date: 20120208 |