CN106638641B - Base pit dewatering well structure and its construction method - Google Patents
Base pit dewatering well structure and its construction method Download PDFInfo
- Publication number
- CN106638641B CN106638641B CN201611168097.2A CN201611168097A CN106638641B CN 106638641 B CN106638641 B CN 106638641B CN 201611168097 A CN201611168097 A CN 201611168097A CN 106638641 B CN106638641 B CN 106638641B
- Authority
- CN
- China
- Prior art keywords
- well
- steel plate
- permeable
- water
- outside
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
A kind of base pit dewatering well structure of present invention offer and its construction method, including well, installation perforation well side wall crosses water steel sleeve on well, the outside of well is fixed with permeable steel plate by reinforcement installation, permeable steel plate covered in the outside of water steel sleeve, and between permeable steel plate and the outer wall of well be enclosed construction, permeable hole is offered on permeable steel plate, and the outside of permeable steel plate is laid with geofabrics cloth, cobblestone, geofabrics cloth and rubble filter layer successively.To solve existing conventional construction site water discharge method, construction method has certain limitation, and construction period is longer, more inconvenient by the field construction of neighbour building covering for place around, and influences the problem of the neighbour structure safety built.The invention belongs to drainage construction fields.
Description
Technical field
It harnesses the river structure and method the present invention relates to a kind of construction site, belongs to drainage construction field.
Background technology
It harnesses the river based on unimpeded conventional construction site.Draining is to build weeper drain or take underground away using pipe well
Water.The building of weeper drain needs certain water pressure or manually manufactures drainage grade, and big sweat and scene are applied
The construction method of the larger local weeper drain in work face has certain limitation.Water blockoff（Manufacture water-stop curtain）And tube well dewatering
It then needs to bury well-point pipe around foundation pit, the construction method period is longer, and for surrounding place by neighbour building covering
Field construction is more inconvenient.And after a large amount of underground water is pumped discharge.The buoyancy force of underground water in the region can decline, and surrounding is built
Differential settlement will be generated with underground utilities by building, and influence the neighbour structure safety built.
Invention content
It is an object of the invention to：A kind of base pit dewatering well structure and its construction method are provided, to solve existing routine
Construction site water discharge method, construction method have certain limitation, construction period is longer, neighbour for place around
The field construction for building covering is more inconvenient, and influences the problem of the neighbour structure safety built.
To solve the above problems, it is quasi- using such a base pit dewatering water well drilling method, including：
Step 1：Excavation and precipitation foundation pit；
Step 2：Well structure is constructed, well of constructing on the basis of precipitation foundation pit, the h on well base surface absolute altitude
Installation perforation well side wall in position crosses water steel sleeve, and h is depending on water well drilling ground basal plane and well bottom plate heights difference；
Step 3：Permeable steel plate is installed, permeable steel plate is installed in the outside of well, permeable steel plate covered in water steel sleeve
Outside, and be enclosed construction between permeable steel plate and the outer wall of well, offer permeable hole on permeable steel plate；
Step 4：It is laid with filter layer, geofabrics cloth is laid in the outside of permeable steel plate, goose ovum is laid on geofabrics cloth
Stone is laid with geofabrics cloth again on the cobblestone laid, and rubble filtering is re-layed on the geofabrics cloth on cobblestone
Layer；
Step 5：Pumping equipment is installed, the end of drawing water of pumping equipment extends to the bottom of well, for that will penetrate into well
Water is pumped into cistern or drains into river.
In aforementioned construction method, for ensure drainage effect, on well base surface absolute altitude the position distribution clipping room of 1m away from
The a diameter of 100mm's of 150mm crosses water steel sleeve, meanwhile, in periphery one row of installation for crossing water steel sleeve for fixing permeable steel plate
Reinforcing bar, it is firm that structure more consolidates；
In aforementioned construction method, permeable steel plate is the channel steel that slot bottom is provided with permeable hole, circle of the permeable steel plate along well outer wall
Circumferential direction encloses the outside for being fixed on water steel sleeve, and well is rectangular hoistway structure, and the processing method of permeable steel plate is：
A. channel steel is cut into 4 parts according to tunnel dimension, steel plate both ends are cut into ramp-like；
B. steel plate is brought out into the open into permeable hole using electric welding machine, diameter is less than 40mm, can be with uneven distribution, but is ensureing thoroughly
Not having a large amount of rubble enters well concrete structure again while water；
C. by channel steel and the reinforcement welding being reserved on well 1 after water well drilling, while connecting in channel steel steel plate angle
It meets place and carries out groove weldering.
It is further preferred that the model 14b of channel steel used in permeable steel plate, the i.e. wide 60mm of height 140mm, leg, waist is thick
8mm；
In aforementioned construction method, it is 1m that cobblestone, which is laid with height, according to 1:1.5 gradient carries out slope, rubble filter layer
Laying depth be 0.4m；
The present invention also provides a kind of base pit dewatering well structure, including well, perforation well side wall is installed on well
Water steel sleeve is crossed, the outside of well is fixed with permeable steel plate by reinforcement installation, and permeable steel plate covered in the outside of water steel sleeve,
And between permeable steel plate and the outer wall of well be enclosed construction, permeable hole, the outside of permeable steel plate are offered on permeable steel plate
It is laid with geofabrics cloth, cobblestone, geofabrics cloth and rubble filter layer successively；
In aforementioned well structure, the position distribution clipping room of 1m is away from a diameter of 100mm of 150mm on well base surface absolute altitude
Cross water steel sleeve；
In aforementioned well structure, permeable steel plate is the channel steel that slot bottom is provided with permeable hole, circle of the permeable steel plate along 1 outer wall of well
Circumferential direction encloses the outside for being fixed on water steel sleeve, and construction is simple is convenient, stabilized structure, and drainage effect is good；
In aforementioned well structure, the preferred 14b of the model of channel steel used in permeable steel plate, the i.e. wide 60mm of height 140mm, leg, waist
Thick 8mm；
In aforementioned well structure, to ensure filter effect, it is 1m that cobblestone, which is laid with height, according to 1:1.5 gradient carries out
The laying depth of slope, rubble filter layer is 0.4m.
Compared with prior art, Precipitation Structure of the present invention and method are suitable for soil layer water permeability coefficient in 0.5 ~ 1m/d
Region, construction method be different from well-points dewatering construction method, french drain or gutter drainage method.Without embedded well-points dewatering pipe, or
The excavation drainage groove of large area, to underground water without extracting by force, construction method is simple and practical, and the period is short, does not interfere with
The structure safety of neighbour building；Underground water is pumped into cistern after free permeation, can be recycled.
Description of the drawings
Fig. 1 is the main view cross-sectional view of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, invention will be made by attached drawing below further
It is described in detail on ground.
Embodiment：
With reference to attached drawing 1, the present embodiment provides a kind of base pit dewatering well structure, including well 1, well 1 is rectangular hoistway
Structure, the position distribution clipping room of 1m crosses water steel sleeve 2 away from a diameter of 100mm of 150mm on well base surface absolute altitude, crosses water steel
Casing 2 penetrates through well side wall, and the outside of well 1 is fixed with permeable steel plate 3 by reinforcement installation, and permeable steel plate 3 is provided with for slot bottom
The channel steel of permeable hole 31, permeable steel plate 3 enclose the outside for being fixed on water steel sleeve 2 along the circumferencial direction of 1 outer wall of well, and thoroughly
It is enclosed construction between water steel plate 3 and the outer wall of well 1, the model 14b of channel steel used in permeable steel plate 3, i.e. height
The outside of the wide 60mm of 140mm, leg, waist thickness 8mm, permeable steel plate 3 are laid with geofabrics cloth 4, cobblestone 5, geofabrics cloth 4 successively
With rubble filter layer 6, it is 1m that cobblestone 5, which is laid with height, according to 1:1.5 gradient carries out slope, and the laying of rubble filter layer 6 is thick
Degree is 0.4m, and maintenance cat ladder 7 is equipped in the hoistway of well 1.
Its construction method is as follows：
Step 1：Excavation and precipitation foundation pit；
Step 2：Well structure is constructed, well 1 of constructing on the basis of precipitation foundation pit, the 1m on well base surface absolute altitude
Position distribution clipping room cross water steel sleeve 2 away from a diameter of 100mm of 150mm, cross the side wall that water steel sleeve 2 penetrates through well 1, together
When, it is used to fix the reinforcing bar of permeable steel plate 3 in periphery one row of installation for crossing water steel sleeve 2；
Step 3：Permeable steel plate is installed, permeable steel plate 3 is installed in the outside of well 1, permeable steel plate 3 is that slot bottom is provided with
The channel steel in water hole 31, the model 14b, the i.e. wide 60mm of height 140mm, leg, waist thickness 8mm of channel steel used in permeable steel plate 3, permeable steel
Plate 3 encloses the outside for being fixed on water steel sleeve 2, and the outer wall of permeable steel plate 3 and well 1 along the circumferencial direction of 1 outer wall of well
Between be enclosed construction；
The processing method of permeable steel plate 3 is：
A. channel steel is cut into 4 parts according to tunnel dimension, steel plate both ends are cut into ramp-like；
B. steel plate is brought out into the open into permeable hole 31 using electric welding machine, diameter is less than 40mm, can be with uneven distribution, but is ensureing
Not having a large amount of rubble enters well concrete structure again while permeable；
C. by channel steel and the reinforcement welding being reserved on well 1 after water well drilling, while connecting in channel steel steel plate angle
It meets place and carries out groove weldering.
Step 4：It is laid with filter layer, geofabrics cloth 4 is laid in the outside of permeable steel plate 3, is laid on geofabrics cloth 4
Cobblestone 5 is laid with geofabrics cloth 4 again on the cobblestone 5 laid, is re-layed on the geofabrics cloth 4 on cobblestone 5
Rubble filter layer 6, it is 1m that cobblestone 5, which is laid with height, according to 1:1.5 gradient carries out slope, the laying depth of rubble filter layer 6
For 0.4m；
Step 5：Pumping equipment is installed, the end of drawing water of pumping equipment extends to the bottom of well 1, for that will penetrate into well 1
Water be pumped into cistern or drain into river.
Claims (10)
1. a kind of base pit dewatering water well drilling method, which is characterized in that including：
Step 1：Excavation and precipitation foundation pit；
Step 2：Well structure is constructed, well (1) of constructing on the basis of precipitation foundation pit, the position of h on well base surface absolute altitude
That sets installation perforation well side wall crosses water steel sleeve (2)；
Step 3：Permeable steel plate is installed, permeable steel plate (3) is installed in the outside of well (1), permeable steel plate (3) covered in water steel
The outside of casing (2), and be enclosed construction between permeable steel plate (3) and the outer wall of well (1), it is opened up on permeable steel plate (3)
There is permeable hole (31)；
Step 4：It is laid with filter layer, geofabrics cloth (4), geofabrics cloth (4) upper berth are laid in the outside of permeable steel plate (3)
If cobblestone (5), it is laid with geofabrics cloth (4), the geofabrics on cobblestone (5) again on the cobblestone (5) laid
Rubble filter layer (6) is re-layed on cloth (4)；
Step 5：Pumping equipment is installed, the end of drawing water of pumping equipment extends to the bottom of well (1), for that will penetrate into well (1)
Water be pumped into cistern or drain into river.
2. a kind of base pit dewatering water well drilling method according to claim 1, it is characterised in that：On well base surface absolute altitude
Excessively water steel sleeve (2) of the position distribution clipping room of 1m away from a diameter of 100mm of 150mm, meanwhile, crossing the outer of water steel sleeve (2)
Enclose the reinforcing bar that one row of installation is used to fix permeable steel plate (3).
3. a kind of base pit dewatering water well drilling method according to claim 1, it is characterised in that：Permeable steel plate (3) is slot bottom
It is provided with the channel steel of permeable hole (31), permeable steel plate (3) was fixed on water steel sleeve along the circumferencial direction enclosing of well (1) outer wall
(2) outside, well (1) are rectangular hoistway structure, and the processing method of permeable steel plate (3) is：
A. channel steel is cut into 4 parts according to tunnel dimension, steel plate both ends are cut into ramp-like；
B. channel steel steel plate is brought out into the open at permeable hole (31) using electric welding machine, diameter is less than 40mm；
C. by channel steel and the reinforcement welding being reserved on well 1 after water well drilling, while in channel steel steel plate angle junction
Carry out groove weldering.
4. a kind of base pit dewatering water well drilling method according to claim 3, it is characterised in that：Slot used in permeable steel plate (3)
The model 14b of steel, the i.e. wide 60mm of height 140mm, leg, waist thickness 8mm.
5. a kind of base pit dewatering water well drilling method according to claim 1, it is characterised in that：Cobblestone (5) is laid with height
For 1m, according to 1:1.5 gradient carries out slope, and the laying depth of rubble filter layer (6) is 0.4m.
6. a kind of base pit dewatering well structure, including well (1), it is characterised in that：Installation perforation well side wall on well (1)
Water steel sleeve (2) is crossed, the outside of well (1) is fixed with permeable steel plate (3) by reinforcement installation, and permeable steel plate (3) covered in water
The outside of steel sleeve (2), and be enclosed construction between permeable steel plate (3) and the outer wall of well (1), it is opened on permeable steel plate (3)
Equipped with permeable hole (31), the outside of permeable steel plate (3) is laid with geofabrics cloth (4), cobblestone (5), geofabrics cloth (4) successively
With rubble filter layer (6).
7. a kind of base pit dewatering well structure according to claim 6, it is characterised in that：The 1m on well base surface absolute altitude
Position distribution clipping room crosses water steel sleeve (2) away from a diameter of 100mm of 150mm.
8. a kind of base pit dewatering well structure according to claim 6, it is characterised in that：Permeable steel plate (3) is provided with for slot bottom
The channel steel of permeable hole (31), permeable steel plate (3) were fixed on water steel sleeve (2) along the circumferencial direction enclosing of well (1) outer wall
Outside.
9. a kind of base pit dewatering well structure according to claim 8, it is characterised in that：Channel steel used in permeable steel plate (3)
Model 14b, the i.e. wide 60mm of height 140mm, leg, waist thickness 8mm.
10. a kind of base pit dewatering well structure according to claim 6, it is characterised in that：Cobblestone (5) is laid with height
1m, according to 1:1.5 gradient carries out slope, and the laying depth of rubble filter layer (6) is 0.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168097.2A CN106638641B (en) | 2016-12-16 | 2016-12-16 | Base pit dewatering well structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168097.2A CN106638641B (en) | 2016-12-16 | 2016-12-16 | Base pit dewatering well structure and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106638641A CN106638641A (en) | 2017-05-10 |
| CN106638641B true CN106638641B (en) | 2018-11-09 |
Family
ID=58822934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168097.2A Active CN106638641B (en) | 2016-12-16 | 2016-12-16 | Base pit dewatering well structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106638641B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555131B (en) * | 2019-01-08 | 2020-07-07 | 临沂大学 | Civil engineering construction is with foundation ditch lateral wall cover protection device |
| CN114032937B (en) * | 2021-12-02 | 2023-02-24 | 浙江银晨建设有限公司 | Foundation pit drainage device and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433886A (en) * | 2011-09-27 | 2012-05-02 | 天津住宅集团建设工程总承包有限公司 | Construction method for adding water lowering well in water collecting well |
| CN202247920U (en) * | 2011-09-27 | 2012-05-30 | 天津住宅集团建设工程总承包有限公司 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
| CN205475289U (en) * | 2016-03-15 | 2016-08-17 | 中建八局第一建设有限公司 | Deep well precipitation well well casing |
| CN106149740A (en) * | 2016-08-26 | 2016-11-23 | 上海二十冶建设有限公司 | Method with water construction draw-well and auxiliary device thereof |
| CN206279547U (en) * | 2016-12-16 | 2017-06-27 | 中建四局第一建筑工程有限公司 | Base pit dewatering well structure |
-
2016
- 2016-12-16 CN CN201611168097.2A patent/CN106638641B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433886A (en) * | 2011-09-27 | 2012-05-02 | 天津住宅集团建设工程总承包有限公司 | Construction method for adding water lowering well in water collecting well |
| CN202247920U (en) * | 2011-09-27 | 2012-05-30 | 天津住宅集团建设工程总承包有限公司 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
| CN205475289U (en) * | 2016-03-15 | 2016-08-17 | 中建八局第一建设有限公司 | Deep well precipitation well well casing |
| CN106149740A (en) * | 2016-08-26 | 2016-11-23 | 上海二十冶建设有限公司 | Method with water construction draw-well and auxiliary device thereof |
| CN206279547U (en) * | 2016-12-16 | 2017-06-27 | 中建四局第一建筑工程有限公司 | Base pit dewatering well structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106638641A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109236328B (en) | Shallow-buried mountain tunnel reinforcing method suitable for water-rich soft soil layer | |
| CN205677631U (en) | It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function | |
| CN105927272A (en) | Floor anchoring constraint tunnel lining structure | |
| CN106351229B (en) | Soft clay area basement support structure | |
| CN108547639B (en) | Tunnel closes on the advanced same more conduit delamination pour slurry construction methods in hole of existing buildings | |
| CN105179011A (en) | Tunnel plugging facility and tunnel plugging method | |
| CN104847365B (en) | A kind of small interval Four-Lane Road Shallow-buried Large-span Tunnel construction method | |
| CN110004935A (en) | A kind of locally deep pit drain measure trench system and construction method | |
| CN103088836A (en) | Sedimentation control method for pumping water and performing reinjection in well casing simultaneously | |
| CN208702024U (en) | Inverted roof light and shade combination dual-drainage structure | |
| CN106638641B (en) | Base pit dewatering well structure and its construction method | |
| CN104234089B (en) | The construction method that a kind of basement guarded drainage combines | |
| CN216640547U (en) | Drainage decompression anti-floating system suitable for weak permeable soft soil stratum | |
| CN109577380B (en) | Construction method for basement bottom plate water seepage under karst landform condition | |
| CN206016853U (en) | Base plate anchors restricted type tunnel lining structure | |
| CN107245989A (en) | Bear the tunnel structure and its construction technology of external water pressure in height | |
| CN214194602U (en) | Precipitation structure suitable for deep foundation pit of high-pressure-bearing water-rich karst stratum | |
| CN109610486A (en) | A kind of high slope Permeable interlayer trapping method | |
| CN210288405U (en) | Local deep pit water conservancy diversion escape canal system | |
| CN204298837U (en) | Bright, dark drainage system | |
| CN206279547U (en) | Base pit dewatering well structure | |
| CN204899978U (en) | Shaft excavation to interface water layer drainage system | |
| CN204646253U (en) | A kind of small interval Four-Lane Road Shallow-buried Large-span Tunnel structure | |
| CN111424685A (en) | Deep water falling hole processing structure and method for backfilling foundation in large karst depression | |
| CN206279548U (en) | A kind of base pit dewatering well crosses water pipe safeguard structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |