CN105155562B - For the construction method of deep basal pit spring sealing - Google Patents
For the construction method of deep basal pit spring sealing Download PDFInfo
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- CN105155562B CN105155562B CN201510476177.3A CN201510476177A CN105155562B CN 105155562 B CN105155562 B CN 105155562B CN 201510476177 A CN201510476177 A CN 201510476177A CN 105155562 B CN105155562 B CN 105155562B
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- spring
- catchment covers
- deep basal
- pit
- basal pit
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Abstract
The invention provides a kind of construction method for deep basal pit spring sealing, concretely comprise the following steps：A, to needing the spring for being blocked to position in deep basal pit bottom, lead is set between spring and center spring around each；B, at the spring of center dig catch pit；C, making catchment covers, flange is provided with the opening of catchment covers, is clasped center spring with catchment covers, and water pump is put into inside catchment covers；After d, catchment covers are installed, water pump is opened, the water burst collected in catchment covers is persistently extracted into outside catchment covers；E, the concreting to deep basal pit and catch pit are carried out in three steps, and the openend to catchment covers before the 3rd step concrete is poured blocks.The present invention is by afflux, confluxing, draw water, block etc. preferably resolves the gush problem that the deep basal pit bottom faced after the completion of regional deep pit digging coastal or along the lake occurs.The construction method is easily operated, efficiency of construction is high, it can also be used to the treatment of other regional spring problems.
Description
Technical field
It is specifically a kind of to be used for deep basal pit spring back cover the present invention relates to a kind of method of foundation ditch partial water burst treatment
The construction method for the treatment of.
Background technology
With the development of urban underground space, the industrial infrastructure such as metallurgy, the electric power in coastal and along the lake area is built
If during the deep foundation facility such as pump house, pond and open caisson it is more and more, the depth of China's deep basal pit is also deepened therewith.When
Substrate is too deep below horizontal plane, and when area of base is larger, precipitation facility can then be subject to certain restrictions, and influences dewatering effect,
Now substrate is it is possible that multiple springs water burst, the basic back cover construction of influence deep basal pit, not only schedule delays, also result in
Great economic loss.
The patent of Patent No. 200920080532.5 be directed to such case, there is provided it is a kind of can be to the partial water burst of foundation ditch
Act the polywater cover for damming, limit the flow direction that intercepts water, facilitate follow-up diversion and drainage works, the polywater cover includes that the whole body is sealed
Close, the cover body of bottom opening, outlet pipe is provided with cover body, cover body is clasped the water burst position on foundation ditch, and will cover when using
Body bottom insertion base soil certain depth, now water burst gradually assemble in mask body intracavity, air in cover body and be gathered in cover body
Interior intercepting water enter diversion and drainage arrangement by outlet pipe.This method simple structure, can be very good to solve the office of foundation ditch
Portion's burst problem, but air in cover body and intercept water and can not be completely exhausted out outside cover body, and to that can not be carried out at water burst thoroughly
Closure.
The content of the invention
It is an object of the invention to provide a kind of construction method for deep basal pit spring sealing, to solve existing skill
Construction effect present in treatment of the art at deep basal pit spring not substantially and the halfway problem of back cover.
What the present invention was realized in：
A kind of construction method for deep basal pit spring sealing, comprises the following steps：
A, according to site operation situation to needing the spring for being blocked to position in deep basal pit bottom, mark center spring
Eye and the position at surrounding spring, are respectively provided with lead, by lead rubble around each between spring and center spring
Fill into french drain；
B, catch pit is dug at the center spring at deep basal pit bottom, the size of catch pit according in deep basal pit bottom spring point
Cloth and determine；
C, with steel plate make catchment covers, flange is provided with the opening on catchment covers top, with catchment covers by catch pit
Center spring is clasped, and water pump is put into inside catchment covers and is installed from the opening on catchment covers top；
After d, catchment covers are installed, water pump is opened, by gushing for being collected from spring around and center spring in catchment covers
Water is persistently extracted into outside catchment covers；
E, concreting is carried out to deep basal pit and catch pit and spring is blocked：To on catch pit in deep basal pit and catch pit
Other spaces carry out the first step of concrete and pour in deep basal pit beyond side space；By in hole bottom to the catchment covers of catch pit
The second step that portion position carries out concrete is poured, and prevents water from gushing out from catchment covers outside；After the completion of pumping for water pump in catchment covers,
Water pump is taken out, is sealed with the top end opening under the cooperation of flange of the blank flange at catchment covers top end opening to catchment covers
Stifled, the middle part after the completion of closure to catchment covers in catch pit carries out concrete with the space on surface on the basis of up to deep basal pit
3rd step is poured.
The thickness range of the steel plate for making the catchment covers is 6cm ~ 10cm.
The water pump being arranged in the catchment covers elects immersible pump as.
The particle size range of the rubble for lead to be filled into french drain is 20mm ~ 40mm.
The present invention sets lead by between spring around each and center spring, in the center spring at deep basal pit bottom
Catch pit is dug at eye, the water burst at center spring and surrounding spring is pooled in the catchment covers of special facture, it is possible thereby to will
The water burst at spring carries out centralized Control, and the concreting of large area sole plate can be carried out during central drainage.Catchment
After the completion of pumping for water pump in cover, closed by blank flange, the construction of final stage concrete floor can be carried out, and
And without increasing the expense of well-points dewatering again, operation is simple, effect is good.Lead rubble is filled into french drain, surrounding spring
The water of intraocular does not interfere with pouring for its top concrete during flowing into catch pit by gutter, make the coagulation of deep basal pit
Soil pours the draining with spring while carrying out, and shortens the construction period.
The present invention is preferably resolved in regional deep base coastal or along the lake by afflux, the process such as conflux, draw water, block
The gush problem that the deep basal pit bottom that hole is faced after the completion of excavating occurs.The construction method is easily operated, efficiency of construction is higher, its
Used tool makes relatively simple, it can also be used to the treatment of the spring problem of other regional soil layers.
Brief description of the drawings
Fig. 1 is the structural representation of deep basal pit spring of the present invention sealing.
Fig. 2 be deep basal pit spring back cover A-A to profile.
In figure：1st, deep basal pit, 2, deep basal pit bottom, 3, lead, 4, catch pit, 5, catchment covers, 6, flange, 7, water pump, 8,
Blank flange, 9-1, the first casting concrete, 9-2, the second casting concrete, 9-3, the 3rd casting concrete, 10, basic upper table
Face.
Specific embodiment
As depicted in figs. 1 and 2, the present invention comprising the concrete steps that for the construction method of deep basal pit spring sealing：
（1）According to site operation situation to needing the spring for being blocked to position in deep basal pit bottom 2, center is marked
Spring and the position at surrounding spring, center spring be it is all need to block the spring in center in spring, surrounding spring is
The spring of the need closure in addition to the spring of center.Lead 3 is respectively provided between spring and center spring around each, entirely
The distribution of lead 3 is radial in center, and lead 3 is filled into french drain with rubble, and french drain can pass through the water in spring around
Gutter does not interfere with pouring for its top concrete during flowing into catch pit 4, make the concreting of deep basal pit and spring
The draining of eye is carried out simultaneously, efficiency of construction is improve, while shortening the construction period.The section of the lead 3 in the present embodiment
It is square-section, its width is 500 millimeters, depth is 500 millimeters；Particle diameter model for lead 3 to be filled into the rubble of french drain
Enclose is 20 millimeters ~ 40 millimeters.
（2）Catch pit 4 is dug at the center spring at deep basal pit bottom 2, the size of catch pit 4 is according to the Zhongquan of deep basal pit bottom 2
Eye distribution and determine.The length of catch pit 4 is 2 meters in the present embodiment, and width is 2 meters, is highly 2 meters.
（3）Catchment covers 5 are made with steel plate, flange 6 is provided with the opening on the top of catchment covers 5, with catchment covers 5 by catch pit
Center spring in 4 is clasped, and water pump 7 is put into inside catchment covers 5 and is installed from the opening on the top of catchment covers 5.For
The thickness range for making the steel plate of the catchment covers 5 is 6 centimetres ~ 10 centimetres.The lower shape of catchment covers 5 is vertical in the present embodiment
Cube, its top is shaped as tetrapyamid shape, a diameter of 300 millimeters of flange 6 at the top end opening of catchment covers 5, makes catchment covers 5
What steel plate thickness was adopted is 8 centimetres.
（4）After catchment covers 5 are installed, water pump 7 is opened, will be collected from spring around and center spring in catchment covers 5
Water burst be persistently extracted into outside catchment covers 5.What the water pump 7 in the present embodiment was used is the suitable immersible pump 7 of lift.Catchment covers 5
The water burst at center spring and surrounding spring is pooled in catchment covers 5, the water burst at center spring and surrounding spring can be carried out
Centralized Control, can carry out the concreting of large area sole plate during central drainage.
（5）Concreting is carried out to deep basal pit 1 and catch pit 4 and spring is blocked, its process point step of position three：To deep basal pit
Other spaces carry out the first step of concrete and pour in deep basal pit 1 in 1 beyond catch pit 4 and the superjacent air space of catch pit 4, and it is mixed
Solidifying soil is referred to as the first casting concrete 9-1；The second of concrete is carried out by hole bottom to the medium position of catchment covers 5 of catch pit 4
Step is poured, and prevents water from gushing out from the outside of catchment covers 5, and its casting concrete turns into the second casting concrete 9-2；In catchment covers 5
Water pump 7 draw water after the completion of, water pump 7 is taken out, it is right under the cooperation with flange 6 of the blank flange 8 at the top end opening of catchment covers 5
The top end opening of catchment covers 5 is blocked, to the middle part of catchment covers 5 in catch pit 4 with the base of up to deep basal pit 1 after the completion of closure
The 3rd step that the space of plinth upper surface 10 carries out concrete is poured, and its concrete for being poured is referred to as the 3rd casting concrete 9-3.
3rd step concrete pour it is middle catchment covers 5 are carried out with blank flange 8 first to block closed measure, then poured, it was poured
Without being further added by the precipitation well point of other forms in journey, the input cost for well-points dewatering is reduced, operation is simple, imitated
It is really good.
The present invention solves the problems, such as gush well after the completion of the deep pit digging in area coastal or along the lake, the construction party
Method is easily operated, it can also be used to the treatment of spring problem in other regional soil layers.
Claims (3)
1. a kind of construction method for deep basal pit spring sealing, it is characterized in that, comprise the following steps：
A, according to site operation situation to needing the spring for being blocked to position in deep basal pit bottom, mark center spring and
The position at surrounding spring, lead is respectively provided with around each between spring and center spring, and lead is filled into rubble
French drain；
B, catch pit is dug at the center spring at deep basal pit bottom, the size of catch pit is according to the distribution at spring in deep basal pit bottom
Determine；
C, catchment covers are made with steel plate, flange is provided with the opening on catchment covers top, with catchment covers by the center in catch pit
Spring is clasped, and water pump is put into inside catchment covers and is installed from the opening on catchment covers top, for making described catchmenting
The thickness range of the steel plate of cover is 6cm ~ 10cm, catchment covers（5）Lower shape be cube, its top is shaped as rectangular pyramid
Shape, catchment covers（5）Flange at top end opening（6）A diameter of 300 millimeters；
After d, catchment covers are installed, water pump is opened, the water burst collected from spring around and center spring in catchment covers is held
It is continuous to be extracted into outside catchment covers；
E, concreting is carried out to deep basal pit and catch pit and spring is blocked：It is empty to catch pit in deep basal pit and catch pit top
Between beyond deep basal pit in other spaces carry out the first step of concrete and pour；By hole bottom to the middle position of catchment covers of catch pit
Putting carries out the second step of concrete and pours, and prevents water from gushing out from catchment covers outside；After the completion of pumping for water pump in catchment covers, by water
Pumping goes out, and is blocked with the top end opening under the cooperation of flange of the blank flange at catchment covers top end opening to catchment covers,
Middle part after the completion of closure to catchment covers in catch pit carries out the of concrete with the space on surface on the basis of up to deep basal pit
Three steps are poured.
2. the construction method for deep basal pit spring sealing according to claim 1, it is characterised in that be arranged on institute
The water pump stated in catchment covers elects immersible pump as.
3. the construction method for deep basal pit spring sealing according to claim 1, it is characterised in that for that will draw
The particle size range that ditch fills into the rubble of french drain is 20mm ~ 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476177.3A CN105155562B (en) | 2015-08-06 | 2015-08-06 | For the construction method of deep basal pit spring sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476177.3A CN105155562B (en) | 2015-08-06 | 2015-08-06 | For the construction method of deep basal pit spring sealing |
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| Publication Number | Publication Date |
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| CN105155562A CN105155562A (en) | 2015-12-16 |
| CN105155562B true CN105155562B (en) | 2017-05-31 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604954A (en) * | 2017-09-29 | 2018-01-19 | 上海宝冶集团有限公司 | Ttom of pipe plugging construction method after deep basal pit push pipe |
| CN108677982A (en) * | 2018-05-24 | 2018-10-19 | 中铁隧道局集团有限公司 | Complex geological condition foundation pit substrate excavates Tunnel gushing treatment method |
| CN108824464A (en) * | 2018-07-24 | 2018-11-16 | 北京首钢建设集团有限公司 | A kind of whirling well deep building pit piping bottom sealing method |
| CN110847199A (en) * | 2019-11-12 | 2020-02-28 | 中国二十冶集团有限公司 | Construction method for drainage of underground water of deep foundation pit |
| CN114045848A (en) * | 2021-11-17 | 2022-02-15 | 中建八局第四建设有限公司 | Construction method for pit foundation in water inrush pit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2147645C1 (en) * | 1998-05-15 | 2000-04-20 | Закрытое акционерное общество Промышленно-строительная фирма "Содружество" | Method and device for lowering of ground water level in construction and operation of underground structures |
| CN101550701B (en) * | 2009-04-30 | 2010-09-08 | 中冶实久建设有限公司 | Method and device for treating partial water burst of foundation ditch |
| CN202610819U (en) * | 2012-05-11 | 2012-12-19 | 天津二十冶建设有限公司 | Foundation pit drainage system |
| CN203475467U (en) * | 2013-08-28 | 2014-03-12 | 中建七局第二建筑有限公司 | Base plate concrete bottom sealing structure |
| CN104060622B (en) * | 2014-07-14 | 2016-02-10 | 云南建工第四建设有限公司 | Steel drum Yield rainfall relation method is cheated in a kind of hole |
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