CN209444310U - A kind of plugging dewatering well structure - Google Patents
A kind of plugging dewatering well structure Download PDFInfo
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- CN209444310U CN209444310U CN201822212524.3U CN201822212524U CN209444310U CN 209444310 U CN209444310 U CN 209444310U CN 201822212524 U CN201822212524 U CN 201822212524U CN 209444310 U CN209444310 U CN 209444310U
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- hardening cement
- quick hardening
- cement layer
- layer
- plugging
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Abstract
The utility model provides a kind of plugging dewatering well structure.The plugging structure includes the steel sleeve for having seal ring, clay filled layer and sets gradually geotextiles bed course, the first quick hardening cement layer, the second quick hardening cement layer, sealing steel plate and the third quick hardening cement layer in steel sleeve from the bottom to top；The steel sleeve is welded on well casing upper end before structure base slab pours, 1.2~1.8m of top surface distance structure bottom plate bottom surface of clay filled layer, suction eye is equipped in the middle part of geotextiles bed course and the first quick hardening cement layer, the second quick hardening cement layer is in end and the extraction suction eye of drawing water, and it is filled above the first quick hardening cement layer after sealing suction eye by quick hardening cement, the sealing steel plate is placed in the second quick hardening cement layer top surface, and welded with steel sleeve, the third quick hardening cement layer is filled from the top surface of sealing steel plate to the well head of dewatering well.The utility model structure is simple, easy for construction, low cost, using multi layer waterproof structure, really ensures that dewatering well is non-leakage.
Description
Technical field
The utility model relates to a kind of Underground Construction field, specifically a kind of precipitation plugging structure.
Background technique
In current urban construction, underground engineering construction is extensive, and underground engineering would have to come into contacts with underground water, in order to
Underground engineering can be smoothly completed, dewatering well precipitation must be just used, plugging dewatering well is improper, and very big break can be caused to engineering
It is bad.
Construction method traditional at present is to backfill crushed stone concrete etc. at once after underground water in dewatering well is drained to basis
Bed course absolute altitude, while being poured using the expansive concrete of strength grade higher than base concrete-light to basic top surface, construction method
Construction joint can be generated in precipitation well head part position by being disadvantageous in that, bring leakage hidden trouble, and can not repair；Or it will be dropped using steel pipe
Well colon passes through sole plate, welds sealing wing plate on the outside of steel pipe, is welded on the inside of steel pipe using steel plate again after to be onstructed
It blocks, construction method is disadvantageous in that closure weld interval is long, and the plugging dewatering well difficulty big for water yield is big.
Summary of the invention
The utility model is insufficient according to prior art to provide a kind of drop that the dewatering well big for water yield is blocked
Well plugging structure, the plugging structure are handled using multilayer flashing, really guarantee that dewatering well is non-leakage, construction is simple, cost
It is low, and the construction period can be shortened.
The technical solution of the utility model includes: a kind of plugging dewatering well structure, including having the steel sleeve of seal ring, setting
Clay filled layer below structure base slab and the plugging structure layer being placed in steel sleeve, the plugging structure layer from the bottom to top according to
Secondary includes geotextiles bed course, the first quick hardening cement layer, the second quick hardening cement layer, sealing steel plate and third quick hardening cement layer；It is described
Steel sleeve is welded on well casing upper end before structure base slab pours, and the bottom of steel sleeve extends to below structure base slab, described glutinous
Native filled layer is filled in well casing, and packed height distance structure bottom plate 1.2~1.8m of bottom surface, fast in geotextiles bed course and first
It is equipped with suction eye in the middle part of solid carbon dioxide mud layer, and is sealed suction eye by filler block after the completion of drawing water；Second quick hardening cement
Layer is filled above the first quick hardening cement layer after draw water end and extraction suction eye by quick hardening cement, the sealing steel
Plate is circular steel plate, is placed in the second quick hardening cement layer top surface, and is welded with steel sleeve, and the third quick hardening cement layer is from sealing steel
It fills to the top surface of structure base slab the top surface of plate.
The utility model preferably technical solution: the distance of geotextiles bed course distance structure bottom plate bottom surface be 25~
35cm。
The utility model preferably technical solution: the height of the first quick hardening cement layer is 300~400mm.
The utility model preferably technical solution: the filler block is round stopper.
The utility model preferably technical solution: the packed height of the second quick hardening cement layer is 200~300mm.
The utility model preferably technical solution: the seal ring being arranged on steel sleeve is by being welded on steel sleeve
Water flange plate and the sealing rod being placed on water flange plate form.
The present invention provides the foundation pit pressure-bearing or water-bearing layer precipitation of simple and easy, the easy to operate, low cost of one kind and short time limit
Well plugging device.
The plugging structure of the utility model uses multi layer waterproof structure, really ensures that dewatering well is non-leakage, can be used for
For the big foundation pit pressure-bearing of water yield or water-bearing layer plugging dewatering well, plugging structure, easy for construction, low cost, construction period
It is short, reduce labour cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the construction of the utility model is drawn water status diagram.
In figure: 1-seal ring, 2-steel sleeves, 3-clay filled layers, 4-geotextiles bed courses, the 5-the first quick hardening cement
Layer, the 6-the second quick hardening cement layer, 7-sealing steel plates, 8-third quick hardening cement layers, 9-structure base slabs, 10-suction eyes,
11-filler blocks, 12-well casings, 13-suction pumps, 14-drinking-water pipes.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.A kind of plugging dewatering well structure as shown in Figure 1, it is special
Sign is: the plugging structure includes the steel sleeve 2 for having seal ring 1, the clay filled layer 3 for being placed in 9 lower section of structure base slab and sets
In the plugging structure layer in steel sleeve 2, the seal ring 1 being arranged on steel sleeve 2 is by being welded on sealing on steel sleeve 2
Flanged plate and the sealing rod being placed on water flange plate form.The plugging structure layer successively includes geotextiles bed course from the bottom to top
4, the first quick hardening cement layer 5, the second quick hardening cement layer 6, sealing steel plate 7 and third quick hardening cement layer 8；The steel sleeve 2 is being tied
Structure bottom plate 9 is welded on 122 upper end of well casing before pouring, and the bottom of steel sleeve 2 extends to 9 lower section of structure base slab, and the clay is filled out
It fills layer 3 to be filled in well casing 12, and 9 1.2~1.8m of bottom surface of packed height distance structure bottom plate, 4 distance of geotextiles bed course
The distance of 9 bottom surface of structure base slab is 25~35cm, and the height of the first quick hardening cement layer 5 is 300~400mm, in geotextiles
Suction eye 10 is equipped in the middle part of bed course 4 and the first quick hardening cement layer 5, and by filler block 11 that suction eye 10 is close after the completion of drawing water
Envelope, the filler block 11 are round stopper；The second quick hardening cement layer 6 passes through quick-drying after draw water end and extraction suction eye
Cement is filled above the first quick hardening cement layer 5, and the packed height of the second quick hardening cement layer 6 is 200~300mm.
The sealing steel plate 7 is circular steel plate, is placed in 6 top surface of the second quick hardening cement layer, and weld with steel sleeve 2, the third quick-drying
Cement layer 8 is filled from the top surface of sealing steel plate 7 to the top surface of structure base slab 9.
Plugging structure in the utility model be mainly used for building enclosure early period do not separate low pressure water layer, artesian aquifer,
Situations such as early period, building enclosure quality of wall was poor.Need the material for preparing to have when its Specific construction: distribution box, electric welding machine, from
Sucking pump, nylon tube, clay bag, quick hardening cement, ash bucket, geotextiles, 8mm thick steel plate.Steps are as follows for its Specific construction:
(1), it gets out the power and nylon tube size of self priming pump according to water flow size, water pipe and self priming pump are connected.
If self-priming pump power is big and water flow is smaller, it can choose lesser water pipe, connect by variable cross-section water pipe head with self priming pump,
Or will strike flat to reduce water flow on water pipe head, guarantee that the excessive amount of underground water is suitable with self-priming discharge of pump, if subsurface flow
Amount is greater than pump-out, and underground water can be overflowed from tube wall, if the rate of discharge of groundwater is less than pump-out, will lead in self priming pump pump process
Because of water shortage, enters air in water inlet pipe and stop pumping.
(2), it will be put into clay bag in well casing, is filled to from base top 1.5m or so, is consolidated to form clay filled layer with rod
3；
(3), it as shown in Fig. 2, self-priming water pumping pipe is connected, is put into well casing, notices that water inlet pipe mouth backfills face from clay
20cm distance is kept, soil in pump process is avoided to enter blocking pipeline in pipe；Pay attention to water pipe socket depth apart from floor
25~35cm of face；Pump power is opened, water is down to from 1 meter of well head or so, geotextiles are put into well casing, suction eye is allowed to protect
It holds in well casing immediate vicinity, avoids close to tube wall；
(4), continue to draw water, form the first quick hardening cement layer 5 with quick hardening cement filling 300~400mm of well casing, be careful not to
More than water pipe belled position；
(5), the 40min such as after the first quick hardening cement layer reaches high intensity, extract top water inlet pipe, by ready round log
Filler block 11 is squeezed into the water pipe in indwelling well, and is checked whether there is or not percolating water, if nothing, horse back mixing quick hardening cement is refilled with
200~300mm forms the second quick hardening cement layer 6, and reserved about 5cm is not filled out；
(6), at once cleaning the borehole wall, by the circular steel plate of the 8mm processed in advance thickness be fully welded the second quick hardening cement layer 6 with
On, after welding position is cooling, check weld seam whether leak, after confirmation is not leaked, then with quick hardening cement well casing is filled to structure bottom
The top surface of plate 9 forms third quick hardening cement layer 8, completes the closure process of dewatering well.
Occurs term " first " in the utility model, " second ", " third " are used for description purposes only, and should not be understood as referring to
Show or imply relative importance.
The above, only one embodiment of the utility model, above described embodiment only expresses the utility model
Specific embodiment, the description thereof is more specific and detailed, and but it cannot be understood as the limits to the scope of the utility model
System.It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the premise utility,
Various modifications and improvements can be made, and these are all within the protection scope of the present invention.Therefore, the protection of the utility model
Range should be determined by the appended claims.
Claims (6)
1. a kind of plugging dewatering well structure, it is characterised in that: the plugging structure includes the steel sleeve (2) for having seal ring (1), sets
Clay filled layer (3) below structure base slab (9) and the plugging structure layer being placed in steel sleeve (2), the plugging structure layer
It from the bottom to top successively include geotextiles bed course (4), the first quick hardening cement layer (5), the second quick hardening cement layer (6), sealing steel plate (7)
With third quick hardening cement layer (8)；The steel sleeve (2) is welded on well casing (12) upper end, and steel bushing before structure base slab (9) pours
The bottom of pipe (2) extends to below structure base slab (9), and the clay filled layer (3) is filled in well casing (12), and packed height
Distance structure bottom plate (9) 1.2~1.8m of bottom surface is equipped with suction eye in the middle part of geotextiles bed course (4) and the first quick hardening cement layer (5)
(10), and after the completion of drawing water suction eye (10) are sealed by filler block (11)；The second quick hardening cement layer (6) is being drawn water
Terminate and is filled above the first quick hardening cement layer (5) after extracting suction eye by quick hardening cement, the sealing steel plate (7)
For circular steel plate, it is placed in second quick hardening cement layer (6) top surface, and is welded with steel sleeve (2), the third quick hardening cement layer (8)
It fills from the top surface of sealing steel plate (7) to the top surface of structure base slab (9).
2. a kind of plugging dewatering well structure according to claim 1, it is characterised in that: geotextiles bed course (4) distance
The distance of structure base slab (9) bottom surface is 25~35cm.
3. a kind of plugging dewatering well structure according to claim 1, it is characterised in that: the first quick hardening cement layer (5)
Height be 300~400mm.
4. a kind of plugging dewatering well structure according to claim 1, it is characterised in that: the filler block (11) is round wood
Plug.
5. a kind of plugging dewatering well structure according to claim 1, it is characterised in that: the second quick hardening cement layer (6)
Packed height be 200~300mm.
6. a kind of plugging dewatering well structure according to claim 1, it is characterised in that: described to be arranged on steel sleeve (2)
Seal ring (1) formed by being welded on water flange plate and the sealing rod being placed on water flange plate on steel sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212524.3U CN209444310U (en) | 2018-12-26 | 2018-12-26 | A kind of plugging dewatering well structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212524.3U CN209444310U (en) | 2018-12-26 | 2018-12-26 | A kind of plugging dewatering well structure |
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| Publication Number | Publication Date |
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| CN209444310U true CN209444310U (en) | 2019-09-27 |
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ID=68016365
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822212524.3U Active CN209444310U (en) | 2018-12-26 | 2018-12-26 | A kind of plugging dewatering well structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519150A (en) * | 2018-12-26 | 2019-03-26 | 中铁十局集团城市轨道工程有限公司 | One kind being directed to the biggish plugging dewatering well device and method of water yield |
| CN112982364A (en) * | 2021-01-26 | 2021-06-18 | 中国化学工程第三建设有限公司 | Device and method for plugging gushing water from foundation geological exploration hole |
-
2018
- 2018-12-26 CN CN201822212524.3U patent/CN209444310U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519150A (en) * | 2018-12-26 | 2019-03-26 | 中铁十局集团城市轨道工程有限公司 | One kind being directed to the biggish plugging dewatering well device and method of water yield |
| CN109519150B (en) * | 2018-12-26 | 2024-02-06 | 中铁十一局集团城市轨道工程有限公司 | Dewatering well plugging device and method for large water yield |
| CN112982364A (en) * | 2021-01-26 | 2021-06-18 | 中国化学工程第三建设有限公司 | Device and method for plugging gushing water from foundation geological exploration hole |
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