CN208455680U - Substrate dewatering device in a kind of foundation pit - Google Patents
Substrate dewatering device in a kind of foundation pit Download PDFInfo
- Publication number
- CN208455680U CN208455680U CN201820673232.7U CN201820673232U CN208455680U CN 208455680 U CN208455680 U CN 208455680U CN 201820673232 U CN201820673232 U CN 201820673232U CN 208455680 U CN208455680 U CN 208455680U
- Authority
- CN
- China
- Prior art keywords
- downcomer
- foundation pit
- dewatering device
- steel sleeve
- waterproof roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Substrate dewatering device in a kind of foundation pit, comprising: downcomer, it is vertical to be inserted into soil mass of foundation pit；Steel sleeve is set in the outside of downcomer；Bed course is arranged in the soil mass of foundation pit other than downcomer, and waterproof roll, waterproof roll is laid on bed course, and the waterproof roll extends into the gap between steel sleeve and downcomer, and is fitted in the top that downcomer is extended on the outer wall of downcomer；Water pumping mechanism, the pipeline being connected to including water pump and from water pump in downcomer.It is relatively abundant in underground water, using substrate dewatering device in the foundation pit of the utility model in the biggish situation of excavation of foundation pit depth, can effectively, easily Yield rainfall relation within the scope of the foundation pit, it is ensured that the construction quality of bottom plate, and can guarantee and steel sleeve is tightly blocked after construction of bottom plates.
Description
Technical field
The utility model relates to the realm of building construction, specifically, being related to substrate dewatering device in a kind of foundation pit.
Background technique
The construction of subway underground station needs for underground water to be down to substrate or less 1m, but is frequently encountered drawdown in foundation pit
The case where meeting design requirements needs to increase thus dewatering measure in hole, that is, to increase dewatering well precipitation in hole, right
Dewatering well waterproof is routinely closed using direct fill concrete in cheating, but waterproof effect is undesirable, and there are infiltration hidden danger.
Utility model content
In order to solve the above problem, the utility model provides substrate dewatering device in a kind of foundation pit, comprising: downcomer, vertically
It is inserted into soil mass of foundation pit；Steel sleeve is set in the outside of downcomer；Bed course is arranged in the soil mass of foundation pit other than downcomer, prevents
Water coiled material, waterproof roll are laid on bed course, and the waterproof roll extends into the gap between steel sleeve and downcomer, and are pasted
Close the top that downcomer is extended on the outer wall of downcomer；Water pumping mechanism, including water pump and downcomer is connected to from water pump
Interior pipeline.
Preferably, bed course is bonded in the form gradually risen to downcomer direction with the outer wall of downcomer, to be formed outer
Fillet.
Preferably, after draining, slightly expanded concrete is filled between steel sleeve and downcomer.
Preferably, after draining, by sweat soldering waterproof roll is combined closely with downcomer.
Preferably, the top of the steel sleeve is provided with ring flange, after the fill concrete into downcomer, passes through lid
Plate is connect with ring flange blocks steel sleeve.
Preferably, water expandable waterstop is additionally provided in the position that cover board is engaged with downcomer, steel sleeve.
Preferably, multiple water seepage holes are provided on the tube wall of downcomer insertion soil mass of foundation pit part, are being provided with infiltration
Strainer is coated on the tube wall in hole.
Preferably, it is provided on the downcomer on the soil body in the outside at the position of water seepage hole and is equipped with metalling.
It is relatively abundant in underground water, using substrate precipitation dress in foundation pit of the invention in the biggish situation of excavation of foundation pit depth
Set, can effectively, easily Yield rainfall relation within the scope of the foundation pit, it is ensured that the construction quality of bottom plate, and can guarantee in construction of bottom plates knot
Steel sleeve is tightly blocked after beam.
Detailed description of the invention
By the way that embodiment is described in conjunction with following accompanying drawings, the features described above and technological merit of the utility model will
It becomes more fully apparent and is readily appreciated that.
Fig. 1 is the schematic diagram of substrate dewatering device in the foundation pit for indicate the utility model embodiment.
Specific embodiment
The embodiment of substrate dewatering device in foundation pit described in the utility model described below with reference to the accompanying drawings.This field
Those of ordinary skill will recognize, without departing from the spirit and scope of the utility model, can with it is various not
Same mode or combinations thereof is modified described embodiment.Therefore, attached drawing and description are regarded as illustrative in nature, and
It is not intended to limitation scope of protection of the claims.In addition, in the present specification, attached drawing is drawn not in scale, and identical
Appended drawing reference indicates identical part.
Substrate dewatering device is for excluding underground water when pouring bottom plate in foundation pit, and draining is blocked after the completion of pouring
Mouthful.The dewatering device includes downcomer 100, bed course 10, waterproof roll 20, the steel sleeve 30 of upper and lower opening.Wherein, downcomer
100 are downwardly into soil mass of foundation pit so that underground water can out of downcomer 100 on gush.Base other than downcomer 100
It is equipped with bed course 10 on the soil body of hole, 10 upper surface of bed course is smooth, to be laid with reinforcing bar or waterproof roll etc..In downcomer 100
Outside is arranged with the steel sleeve 30 of vertical upper and lower opening.Waterproof roll 20, the waterproof roll are also equipped on bed course 10
20 extend into the gap between steel sleeve 30 and downcomer 100, are fitted on the outer wall of downcomer 100, vertically prolong always
Reach the top of downcomer 100.When carrying out construction of bottom plates, the template for pouring bottom plate, template are set up in the outside of steel sleeve 30
It can be a such as rectangular template, the space so as to reserve one piece of back pouring hole 200, and other than back pouring hole 200 is first
Row pours, and back pouring hole is then stayed in after the completion of discharge outlet blocks and poured again.Pipeline, pipeline are provided in the downcomer 100
Outer end connection water pump can extract underground water out all the time by water pump during pouring bottom plate.Other than back pouring hole 200
Space pour after the completion of, so that it may termination of pumping, and plain concrete is backfilled into downcomer 100, and to 30 top opening of steel sleeve
It is blocked, carry out reinforcing bar binding after the completion of blocking and pours back pouring hole 200.
In one alternate embodiment, form and downcomer of the bed course 10 to be gradually risen to the outer wall direction of downcomer
100 connections, form bull nose 101, this enables waterproof roll 20 and the outer wall of downcomer to fit closely.
In one alternate embodiment, after draining, the gap between steel sleeve 30 and downcomer 100 is additionally provided with
Slightly expanded concrete, to the gap be clogged closely knit.
In one alternate embodiment, after draining, to waterproof roll carry out sweat soldering so that waterproof roll 20 with
Downcomer 100 is combined closely.
In one alternate embodiment, the top of the steel sleeve 30 is provided with ring flange 301, pours bottom plate
Afterwards, it is connect by cover board 40 with ring flange 301, to block opening 100.
In one alternate embodiment, chance water is additionally provided in the position that cover board 40 is engaged with downcomer 100, steel sleeve 30
Expansion sealing strip 50.
In one alternate embodiment, it is inserted into downcomer 100 in the preset range on the tube wall of the part of soil mass of foundation pit
Multiple water seepage holes are provided with, are coated with strainer on the tube wall for being provided with water seepage hole on the downcomer 100.
In one alternate embodiment, it is provided on the downcomer 100 on the soil body in the outside at the position of water seepage hole
It is equipped with the metalling of no less than 20mm thickness.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (8)
1. substrate dewatering device in a kind of foundation pit characterized by comprising
Downcomer, it is vertical to be inserted into soil mass of foundation pit；
Steel sleeve is set in the outside of downcomer；
Bed course is arranged in the soil mass of foundation pit other than downcomer,
Waterproof roll, waterproof roll are laid on bed course, and the waterproof roll extends into the gap between steel sleeve and downcomer
It is interior, and it is fitted in the top that downcomer is extended on the outer wall of downcomer；
Water pumping mechanism, the pipeline being connected to including water pump and from water pump in downcomer.
2. substrate dewatering device in foundation pit as described in claim 1, which is characterized in that
Bed course is bonded in the form gradually risen to downcomer direction with the outer wall of downcomer, to form bull nose.
3. substrate dewatering device in foundation pit as described in claim 1, which is characterized in that after draining, in steel sleeve and drop
Slightly expanded concrete is filled between water pipe.
4. substrate dewatering device in foundation pit as described in claim 1, which is characterized in that after draining, pass through sweat soldering
So that waterproof roll is combined closely with downcomer.
5. substrate dewatering device in foundation pit as described in claim 1, which is characterized in that be provided on the top of the steel sleeve
Ring flange is connect with ring flange by cover board after the fill concrete into downcomer and blocks steel sleeve.
6. substrate dewatering device in foundation pit as described in claim 1, which is characterized in that connect in cover board and downcomer, steel sleeve
The position of conjunction is additionally provided with water expandable waterstop.
7. substrate dewatering device in foundation pit as described in claim 1, which is characterized in that be inserted into soil mass of foundation pit part in downcomer
Tube wall on be provided with multiple water seepage holes, strainer is coated on the tube wall for be provided with water seepage hole.
8. substrate dewatering device in foundation pit as claimed in claim 7, which is characterized in that be provided with infiltration on the downcomer
Metalling is equipped on the soil body in the outside at the position in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673232.7U CN208455680U (en) | 2018-05-07 | 2018-05-07 | Substrate dewatering device in a kind of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673232.7U CN208455680U (en) | 2018-05-07 | 2018-05-07 | Substrate dewatering device in a kind of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208455680U true CN208455680U (en) | 2019-02-01 |
Family
ID=65150668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820673232.7U Active CN208455680U (en) | 2018-05-07 | 2018-05-07 | Substrate dewatering device in a kind of foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208455680U (en) |
-
2018
- 2018-05-07 CN CN201820673232.7U patent/CN208455680U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109898533B (en) | Raft plate built-in precipitation structure, well sealing structure of precipitation well and well sealing method | |
| CN205444214U (en) | Deep basal pit superelevation water level precipitation well well head plugging device | |
| CN104929143B (en) | A kind of bottom of foundation ditch dewatering well shut-in well method | |
| CN107059903A (en) | Bottom plate plugging dewatering well construction method is worn in foundation ditch | |
| CN105155562B (en) | For the construction method of deep basal pit spring sealing | |
| CN106320353A (en) | Basement construction dewatering and drainage device and construction method thereof | |
| CN206408655U (en) | The top plate sidewall structure of covered back-digging construction | |
| CN215562824U (en) | Bottom plate U type deformation seam structure | |
| CN209339169U (en) | A kind of precipitation well in foundation pit plugging device | |
| CN209723004U (en) | A kind of shut-in well structure of raft plate built-in Precipitation Structure and dewatering well | |
| CN107217683A (en) | A kind of drainage pipeline basis filling anti-collapse structure of antiseepage and its construction method | |
| CN110359957A (en) | A kind of dam body connection structure and its construction method | |
| CN204174631U (en) | A kind of foundation ditch falls the water drainage structure in dark region | |
| CN109025899B (en) | Well sealing device | |
| CN104846935B (en) | Head-tank treating seepage remodeling method | |
| CN208455680U (en) | Substrate dewatering device in a kind of foundation pit | |
| CN206538775U (en) | The plugging structure of foundation ditch blind drainage | |
| CN109555140A (en) | Foundation pit and Tunnel Base spring pump drainage method for blocking and device | |
| CN109113068A (en) | A kind of inverse construction joint structure for building construction of deep basal pit | |
| CN208517970U (en) | A kind of fully-prefabricated assembled piping lane | |
| CN206359989U (en) | Substrate local dewatering drainage arrangement | |
| CN110258660A (en) | The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating | |
| CN106013256B (en) | The tenon formula joint waterproofing structure of concrete waist rail embedded structure side wall | |
| CN107288141B (en) | A kind of seamless flexible water construction technology of contrary sequence method | |
| CN110359495A (en) | Comprehensive pipe gallery structure seam construction and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |