CN206385557U - The water-impervious plugging mechanism of dewatering well on deep basal pit raft plate - Google Patents
The water-impervious plugging mechanism of dewatering well on deep basal pit raft plate Download PDFInfo
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- CN206385557U CN206385557U CN201621332215.4U CN201621332215U CN206385557U CN 206385557 U CN206385557 U CN 206385557U CN 201621332215 U CN201621332215 U CN 201621332215U CN 206385557 U CN206385557 U CN 206385557U
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Abstract
The utility model discloses a kind of water-impervious plugging mechanism of dewatering well on deep basal pit raft plate, the problem of solving the closure sealing difference for the deep basal pit raft plate dewatering well that prior art is present.It is included in steel sleeve（5）Lateral wall on be provided with the outer seal ring of twice, in steel sleeve（5）Madial wall in the middle part of be provided with seal ring in twice, in dewatering well well casing（4）In be provided with backfill sandstone in well（14）, in closure circular cover（13）The steel sleeve of lower section（5）In be provided with lower water-proof concrete（15）, in closure circular cover（13）The steel sleeve of top（5）In be provided with water-proof concrete（16）, first of outer seal ring（6）It is provided in raft foundation concrete cushion（2）In, seal ring in first（9）It is provided in lower water-proof concrete（15）In.The utility model good water-proof effect, employs multi layer waterproof construction measure, can guarantee that the waterproof effect of concrete floor.
Description
Technical field
The present invention relates to a kind of plugging mechanism for the dewatering well being arranged on deep basal pit raft foundation, more particularly to a kind of energy
The antiseep plugging mechanism and its method for blocking for the dewatering well being effectively sealing off on deep basal pit raft foundation.
Background technology
Fast development and the Devoting Major Efforts To Developing of the underground space with urban construction, skyscraper are more and more.Built in high level
In the construction built, typically before deep pit digging, dewatering well is just provided with the ground, the drop of level of ground water at foundation ditch is carried out
It is low, and continuous drawing discharge is carried out to the water in dewatering well by drinking-water pipe；After level of ground water drops to designed elevation, construction is opened
Foundation ditch is dug, during whole construction and excavation, precipitation is lasting progress.After the completion of excavation of foundation pit, start in construction foundation pit
Basic sand-gravel cushion and concrete cushion, waterproof steel bushing is set in base concrete bed course, and above-mentioned drinking-water pipe is just
It is that ground is led to by waterproof steel bushing, then, the raft board concrete base of skyscraper is constructed on base concrete bed course
Plinth layer, constructs skyscraper main body on raft board concrete basal layer afterwards；Finally, be to drop after the completion of structures main body
Well is blocked.Existing plugging dewatering well method is：Sandstone siccative is first inserted in dewatering well, blinding layer bottom is filled to
Position, then pours water-proof concrete, and use blind flange in the upper port of waterproof steel bushing in pre-buried waterproof steel bushing
Welding closure.There is the defect of sealing difference in this method for blocking, can occur infiltration phenomenon on raft board concrete basal layer.It is former
Because being：After the water-proof concrete in waterproof steel bushing solidifies, it may occur that shrink, make the inwall and anti-water coagulation of waterproof steel bushing
Gap is formed between soil, after dewatering well rising of groundwater level, can be oozed out from the gap, enter raft plate top, can also when serious
There is ponding, badly influenced the safe handling of skyscraper.When there is infiltration phenomenon, existing processing method is to drop
Well carries out slip casting, implements secondary plugging, secondary plugging can cause construction cost to increase, and plugging effect is not good enough.
The content of the invention
The invention provides the water-impervious plugging mechanism and its method for blocking of dewatering well on a kind of deep basal pit raft plate, solve
The technical problem of the closure sealing difference for the deep basal pit raft plate dewatering well that prior art is present.
The present invention is to solve above technical problem by the following technical programs：
The water-impervious plugging mechanism of dewatering well on a kind of deep basal pit raft plate, including dewatering well well casing and steel sleeve, steel sleeve
It is to be socketed in the upper port of dewatering well well casing, raft foundation concrete cushion and raft plate base is provided with the outside of steel sleeve
Plinth concrete layer, first of outer seal ring is provided with the lateral wall lower end of steel sleeve, is set in the middle part of the lateral wall of steel sleeve
Have the outer seal ring of second, seal ring in first be provided with the middle part of the madial wall of steel sleeve, in first seal ring with
Seal ring in second is provided between the upper port of steel sleeve, envelope is provided with seal ring radian at equal intervals in second
Bonnet bolt passes capping bolt by the lower section in hole from capping bolt and covers bolt by Kong Houyu upwards by hole, capping bolt
It is connected together by eyelet welding, capping bolt is provided with closure circular cover and passes through hole, closure circular cover is arranged on second
In road above seal ring, capping bolt passes through the capping bolt set in closure circular cover to cover bolt and nut through Kong Houyu
It is screwed together；It is provided with dewatering well well casing in well and backfills sandstone, is set in the steel sleeve below closure circular cover
There is lower water-proof concrete, water-proof concrete, first of outer seal ring are provided with the steel sleeve above closure circular cover
It is provided in raft foundation concrete cushion, seal ring is provided in lower water-proof concrete in first.
Rubber washer is provided between seal ring in closure circular cover and second, in raft foundation concrete cushion
Waterproof loop material is provided with the lateral wall of the steel sleeve of top.
The water-impervious method for blocking of dewatering well, comprises the following steps on a kind of deep basal pit raft plate：
The first step, first of outer seal ring of lateral wall lower end setting in steel sleeve, set in the middle part of the lateral wall of steel sleeve
The outer seal ring of second is put, seal ring, seal ring and steel in first in first are set in the middle part of the madial wall of steel sleeve
Seal ring in second is set between the upper port of sleeve pipe, capping bolt is set radian at equal intervals in second on seal ring
By hole, by capping bolt after capping bolt passes capping bolt by the lower section in hole by hole upwards, and with covering bolt
It is connected together by eyelet welding, capping bolt is correspondingly arranged in closure circular cover and passes through hole；
Second step, after the completion of the basic sand-gravel cushion of valve plate in deep basal pit, the steel sleeve that the first step is made is socketed
In the upper port of dewatering well well casing, raft foundation concrete cushion is then constructed, first of outer seal ring is arranged on raft plate
In base concrete bed course；
Waterproof loop material is provided with 3rd step, the lateral wall of steel sleeve above raft foundation concrete cushion, then
Construct raft foundation concrete layer；
4th step, after the completion of structures main body, in dewatering well well casing backfill well in backfill sandstone siccative, in steel sleeve
Seal ring in water-proof concrete to second under middle perfusion；
5th step, will closure circular cover cover in second on seal ring, capping bolt through closure circular cover on
The capping bolt of setting is screwed together through Kong Houyu capping bolt and nuts；
6th step, closure circular cover on perfusion on water-proof concrete.
The steel sleeve seal ring of the present invention should select the steel plate not less than 6 millimeters thicks to process, and sealing ring width is not less than 50
Millimeter.
Present invention is especially suited for the situation of deep foundation pit precipitation well delay shut-in well；The waterproof and plugging construction of precipitation well in foundation pit
Method is easy, and operating personnel are not required to carry out professional training, and common laborer can complete, and speed of application is fast, and other processes are not influenceed
Construction, nor affect on construction speed；The material of use is common used material in construction, and the cost of material is low, and its cost is at a fairly low
It is honest and clean；Good water-proof effect, employs multi layer waterproof construction measure, can guarantee that the waterproof effect of concrete floor.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the steel sleeve 5 of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
The water-impervious plugging mechanism of dewatering well on a kind of deep basal pit raft plate, including dewatering well well casing 4 and steel sleeve 5, steel bushing
Pipe 5 is socketed in the upper port of dewatering well well casing 4, and the He of raft foundation concrete cushion 2 is provided with the outside of steel sleeve 5
Raft foundation concrete layer 3, first of outer seal ring 6 is provided with the lateral wall lower end of steel sleeve 5, in the outside of steel sleeve 5
The outer seal ring 7 of second is provided with the middle part of wall, seal ring 9 in first are provided with the middle part of the madial wall of steel sleeve 5, first
Seal ring 10 in second are provided with road between the upper port of seal ring 9 and steel sleeve 5, seal ring 10 is first-class in second
Capping bolt is provided with by hole, capping bolt 11 passes capping spiral shell upwards from capping bolt by the lower section in hole interval radian
Bolt covers bolt by Kong Houyu and is connected together by eyelet welding, and capping bolt is provided with closure circular cover 13 and passes through hole,
Closure circular cover 13 is arranged in second above seal ring 10, and capping bolt 11 passes through what is set in closure circular cover 13
Capping bolt is screwed together through Kong Houyu capping bolt and nuts；Backfill sandstone 14 in well is provided with dewatering well well casing 4,
Lower water-proof concrete 15 is provided with the steel sleeve 5 below closure circular cover 13, the steel in the top of closure circular cover 13
Water-proof concrete 16 is provided with sleeve pipe 5, first of outer seal ring 6 is provided in raft foundation concrete cushion 2, the
Seal ring 9 is provided in lower water-proof concrete 15 in together.
Rubber washer 12 is provided between seal ring 10 in closure circular cover 13 and second, in raft foundation coagulation
Waterproof loop material 8 is provided with the lateral wall of the steel sleeve 5 of the top of soil padding 2.
The water-impervious method for blocking of dewatering well, comprises the following steps on a kind of deep basal pit raft plate：
The first step, first of outer seal ring 6 of lateral wall lower end setting in steel sleeve 5, in the middle part of the lateral wall of steel sleeve 5
The outer seal ring 7 of second is set, seal ring 9, the seal ring in first in first are set in the middle part of the madial wall of steel sleeve 5
Seal ring 10 in second is set between 9 and the upper port of steel sleeve 5, set at equal intervals on seal ring 10 in second radian
Capping bolt is put by hole, by capping bolt 11 after capping bolt passes capping bolt by the lower section in hole by hole upwards,
And be connected together with capping bolt by eyelet welding, capping bolt is correspondingly arranged in closure circular cover 13 and passes through hole；
Second step, after the completion of the basic sand-gravel cushion 1 of valve plate in deep basal pit, 5 sets of the steel sleeve that the first step is made
In the upper port for being connected on dewatering well well casing 4, raft foundation concrete cushion 2 is then constructed, first of outer seal ring 6 is arranged on
In raft foundation concrete cushion 2；
3rd step, on the lateral wall of the steel sleeve 5 of the top of raft foundation concrete cushion 2 waterproof loop material 8 is provided with, so
After construct raft foundation concrete layer 3；
4th step, after the completion of structures main body, in dewatering well well casing 4 backfill well in backfill sandstone 14, in steel sleeve 5
Seal ring 10 in water-proof concrete 15 to second under middle perfusion；
5th step, closure circular cover 13 covered in second on seal ring 10, capping bolt 11 is circular through closure
The capping bolt set on cover plate 13 is screwed together through Kong Houyu capping bolt and nuts；
6th step, closure circular cover 13 on perfusion on water-proof concrete 16.
Steel sleeve is processed before base concrete cushion construction, steel sleeve is made using hot rolled seamless steel tube, and steel sleeve 5 will
10 centimetres are higher by than raft foundation concrete layer 3, seal ring uses two-sided welding with steel sleeve, to ensure its sealing.Applying
During work raft foundation concrete cushion 2, steel sleeve 5 is embedded in raft foundation concrete cushion 2 in advance, dewatering pump is passed through into steel bushing
Pipe 5 carries out precipitation.When precipitation can be stopped, dewatering pump is taken out, precipitation bottom is backfilled using sandstone 14, sandstone 14
Sole plate bottom is filled to, is then poured using waterproof expansive concrete to sleeve pipe inner side second seal ring 10, second
Rubber seal is added to be blocked using blind flange at seal ring 10 in road, building waterproofing expansive concrete is poured on upper strata.
Method for blocking：Cement, sand, rubble are first pressed 2：2：1 ratio stirs by well head（Whole siccatives）,
The water in dewatering well is all evacuated before feeding intake, quickly water pump proposed, and in siccative launching trap, siccative is filled to raft plate bottom
Portion, raft plate bottom is poured toward up to raft plate top using waterproof expansive concrete, and twice seal ring on the inside of sleeve pipe is poured into wherein.
Rubber washer is made according to the size of pipe flange cover plate and bolt eye at seal ring in second, rubber washer thickness is 10 millis
Rice, the rubber washer made in advance is inserted on the capping bolt 11 in steel sleeve, closure circular cover 13 is placed into, with set
Barrel spanner symmetrically staggeredly tightens capping bolt and nut.Ensure that sealing is tight, it is air tight.It will be cleaned out in steel sleeve 5, on cover plate
Building waterproofing expansive concrete is poured in portion, and concrete is shaken and densification reality and conserved.Twice waterproof layer is also formed so on the inside of steel bushing,
Prevent the spilling of underground water in well.
Claims (2)
1. the water-impervious plugging mechanism of dewatering well on a kind of deep basal pit raft plate, including dewatering well well casing（4）And steel sleeve（5）, steel
Sleeve pipe（5）It is to be socketed in dewatering well well casing（4）Upper port on, in steel sleeve（5）Outside be provided with raft foundation coagulation
Soil padding（2）With raft foundation concrete layer（3）, it is characterised in that in steel sleeve（5）Lateral wall lower end be provided with first
Outer seal ring（6）, in steel sleeve（5）Lateral wall in the middle part of be provided with the outer seal ring of second（7）, in steel sleeve（5）Inner side
Seal ring in first is provided with the middle part of wall（9）, the seal ring in first（9）With steel sleeve（5）Upper port between set
There is seal ring in second（10）, the seal ring in second（10）On at equal intervals radian be provided with capping bolt by hole,
Cover bolt（11）From capping bolt by the lower section in hole pass upwards capping bolt by Kong Houyu cover bolt pass through eyelet welding
It is connected together, in closure circular cover（13）On be provided with capping bolt pass through hole, block circular cover（13）It is arranged on second
Seal ring in road（10）Above, bolt is covered（11）Through closure circular cover（13）The capping bolt of upper setting passes through Kong Houyu
Capping bolt and nut is screwed together；In dewatering well well casing（4）In be provided with backfill sandstone in well（14）, in closure circular cover
（13）The steel sleeve of lower section（5）In be provided with lower water-proof concrete（15）, in closure circular cover（13）The steel sleeve of top（5）
In be provided with water-proof concrete（16）, first of outer seal ring（6）It is provided in raft foundation concrete cushion（2）In,
Seal ring in first（9）It is provided in lower water-proof concrete（15）In.
2. the water-impervious plugging mechanism of dewatering well on a kind of deep basal pit raft plate according to claim 1, it is characterised in that
Block circular cover（13）With seal ring in second（10）Between be provided with rubber washer（12）, in raft foundation concrete mats
Layer（2）The steel sleeve of top（5）Lateral wall on be provided with waterproof loop material（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332215.4U CN206385557U (en) | 2016-12-07 | 2016-12-07 | The water-impervious plugging mechanism of dewatering well on deep basal pit raft plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332215.4U CN206385557U (en) | 2016-12-07 | 2016-12-07 | The water-impervious plugging mechanism of dewatering well on deep basal pit raft plate |
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| CN206385557U true CN206385557U (en) | 2017-08-08 |
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| CN201621332215.4U Active CN206385557U (en) | 2016-12-07 | 2016-12-07 | The water-impervious plugging mechanism of dewatering well on deep basal pit raft plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522252A (en) * | 2016-12-07 | 2017-03-22 | 山西省第三建筑工程公司 | Seepage-proofing blocking mechanism and method for deep foundation pit raft dewatering well |
| CN108661058A (en) * | 2018-05-17 | 2018-10-16 | 张国良 | A kind of well burying method |
| CN106513658B (en) * | 2016-12-29 | 2019-03-01 | 北京天哲消失模铸造技术有限公司 | Aluminium alloy lost foam foundry production line |
-
2016
- 2016-12-07 CN CN201621332215.4U patent/CN206385557U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522252A (en) * | 2016-12-07 | 2017-03-22 | 山西省第三建筑工程公司 | Seepage-proofing blocking mechanism and method for deep foundation pit raft dewatering well |
| CN106513658B (en) * | 2016-12-29 | 2019-03-01 | 北京天哲消失模铸造技术有限公司 | Aluminium alloy lost foam foundry production line |
| CN108661058A (en) * | 2018-05-17 | 2018-10-16 | 张国良 | A kind of well burying method |
| CN108661058B (en) * | 2018-05-17 | 2021-05-07 | 张国良 | Water well landfill method |
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