CN202730786U - Well-sealing waterproof construction structure of dewatering well - Google Patents
Well-sealing waterproof construction structure of dewatering well Download PDFInfo
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- CN202730786U CN202730786U CN 201220442483 CN201220442483U CN202730786U CN 202730786 U CN202730786 U CN 202730786U CN 201220442483 CN201220442483 CN 201220442483 CN 201220442483 U CN201220442483 U CN 201220442483U CN 202730786 U CN202730786 U CN 202730786U
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- dewatering well
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Abstract
The utility model discloses a well-sealing waterproof construction structure of a dewatering well. The well-sealing waterproof construction structure comprises a dewatering well periphery foundation cushion layer, a steel sleeve for sealing the dewatering well is buried in a foundation pit, a waterproof roll is paved on the foundation cushion layer and along the outer wall of the steel sleeve, a fine aggregate concrete protection layer is poured on the waterproof roll on the foundation cushion layer, a waterproof board is fastened on the outer wall of the waterproof roll on the outer wall of the steel sleeve and consists of two semicircular half waterproof boards which are in butt joint, copper strips are hooped outside the waterproof board, and sealant is injected into the butt joint position of the two semicircular half waterproof boards and the intersection of the top end of the integral waterproof board and the bottom wall of a water-stopping steel plate. Bottom board concrete is poured on the fine aggregate concrete protection layer, and a sealing plate is buried in the steel sleeve and provided with a filler port, an overflow port, a cement grouting port and a water glass adhesive injection port. By the well-sealing waterproof construction structure, the integral well-sealing waterproof system of the dewatering well well solves the problem about waterproof treatment of the joint of the dewatering well in the foundation pit and the foundation bottom plate.
Description
Technical field
The utility model relates to a kind of constructing structure of dewatering well, relates in particular to a kind of constructing structure of dewatering well shut-in well waterproof.
Background technology
Along with the development of urban construction, the building basement degree of depth constantly increases, and foundation ditch is just more and more darker, and is also more and more higher to the requirement of foundation pit dewatering, and water level falls less than requiring, and danger appears in foundation ditch easily.Deep foundation pit construction often need to excavate in the aquifer below the groundwater table.Therefore need before the excavation be reduced to side slope face and hole to groundwater table at the end, preventing subsiding and shoving of side slope, and guarantee to be in the work progress under drainage and the hard condition of work and excavate.Be arranged on the dewatering well in the foundation ditch, not only need precipitation before the soil excavation, and the needs that have last till that basement construction is complete, that have in addition the longer time, this just requires this part dewatering well can not seal when sole plate is constructed, thereby carry out the work such as waterproofing work of this part dewatering well and sole plate junction, plugging dewatering well and the waterproof closure of carrying out simultaneously the later stage just become a great problem.
Learn issued patents by retrieval:
1 application number is that the Chinese patent of CN201120242057.4 discloses " plugging system of dewatering well ", comprise joint steel pipe and seal plate, joint steel pipe passes the basement sole plate and is fixed on the dewatering well well head, weldering seal plate in the steel pipe outside is characterized in that: also comprise screw thread supporting and screw thread closure plate; The inboard welding of described joint steel pipe screw thread supporting, screw thread closure plate and screw thread supporting are flexibly connected and are integrated.The screw thread of described screw thread closure plate is provided with the hole that passes the rope made of hemp.The described rope made of hemp passes hole and is fastened in the screw thread of screw thread closure plate.The upper surface outer of described screw thread closure plate is stuck point fixedly.The upper surface hold-doun nut of described screw thread closure plate.This patent just at steel pipe outside weldering seal plate, can not guarantee the sealing problem that is connected with base plate fully.
2 application numbers are that the Chinese patent of CN200820076584.0 discloses " well-covering device for dewatering well ", the dewatering technical field of device when the utility model belongs to the construction work foundation construction, be specifically related to a kind of well-covering device for dewatering well, solved groundwater pressure or water yield when larger, the method for existing water level lowering well sealing may cause shutoff hidden danger of quality or problem that can't shutoff.Well-covering device for dewatering well, comprise the steel deck-plate that steel sleeve that dewatering well well casing top is sheathed and steel sleeve top arrange, it is characterized in that steel sleeve is connected connected mode with steel deck-plate be that flange connects, between the contact surface of junction rubber pad is set, wear aqueduct on the steel deck-plate, insert in the steel sleeve aqueduct lower end, aqueduct upper end mounted valve.The utlity model has following beneficial effect: adopt the method for valve shutoff dewatering well construction, water guide after the sealing is led underground water by stifled becoming first, and the water burst problem when having solved shutoff makes the plugging dewatering well process not stay hidden danger of quality and construct easy to operate.
1-2 item patent just at steel pipe outside weldering seal plate, can not guarantee the sealing problem that dewatering well is connected with base plate fully.
3 application numbers are that the Chinese patent of CN201120146835.X discloses " a kind of enclosed construction of dewatering well ", and this structure is positioned at sole plate, waters the hole after described sole plate is provided with; This structure comprises the steel plate for sealing water that is fixed on the steel casing outer peripheral face and the shutoff steel plate that is fixed on the steel casing delivery port, described shutoff steel plate is provided with outlet pipe, described outlet pipe is provided with stop valve, and described stop valve is positioned at and waters the hole after described, waters after described and has built expansive concrete in the hole.The utility model can be opened stop valve as required, and the locking stop valve is built expansive concrete and got final product during shut-in well, has effectively stopped the permeation pathway of underground water, and makes be convenient to control the opportunity of shut-in well.And the utility model is simple in structure, easy construction.Although this patent steel casing outer peripheral face is provided with a lot of Lock gates, close measure is not taked in steel casing inside, can not deal with problems from root.
4 application numbers are that the Chinese patent of CN201120261024.4 discloses " well shutting sleeve of dewatering well ", the utility model relates to a kind of well shutting sleeve of dewatering well, formed by steel sleeve and snap ring cover plate, it is characterized in that: in steel sleeve, encircle in the welding sealing, at steel sleeve external welding sealing outer shroud, steel sleeve is enclosed within on the downcast well pipe, with snap ring cover closure ring place in the sealing of steel sleeve, and is lined with the expansion waterstop between ring and snap ring cover plate in the sealing of steel sleeve.Steel sleeve of the present utility model has the advantage of really guarantee the minimum plated construction and shut-in well quality easy for installation, swift to operate.The area that has solved groundwater table height and underground water plentifulness uncompacted problem of shunting in a well.This patent can not solve the waterproof closed question at basis and well shutting sleeve of dewatering well handing-over position only at steel sleeve external welding sealing outer shroud.
5 application numbers are that the Chinese patent of CN200920318902.4 discloses " rapid low-cost water level lowering well sealing device ", it is positioned at the suitable for reading of dewatering well, be fixed with a well head pipe dewatering well suitable for reading, well head pipe peripheral solder has embedded board, embedded board is embedded in the underplate concrete, is welded with the end socket steel plate in the well head pipe, and at least one water burst hole is arranged on the end socket steel plate, water burst is welded with sleeve on the hole, and sleeve is threaded with plug.The utility model by part welding and be threaded and realize the sealing of dewatering well, blocked the permeation pathway of underground water fully, need to be in well backfill rubble and concrete.Sealing effect is good, easy construction, and speed of application is fast, can finish capping operation in general 20 minutes; But reducing construction cost is saved 50% R rates quoted above than every mouthful of well of conventional method.Be applicable to the drainage construction of ground.This patent can not solve the waterproof closed question at basis and well shutting sleeve of dewatering well handing-over position only at sleeve pipe external welding embedded board, also needs the problem of precipitation when being not suitable for solving foundation construction.
6 application numbers are that the Chinese patent of CN200820025100.X discloses " precipitation Well seal structure in foundation slab ", the utility model provides a kind of precipitation Well seal structure in foundation slab of building engineering field, top without sandpipe in its structure is set to steel cylinder, the outside of steel cylinder bottom is foundation pad, the top of foundation pad sets gradually and is the fixing seal plate in bottom, rubber sheet gasket, waterproofing course, rubber sheet gasket, the movable annular steel plate, the top of movable annular steel plate is provided with bolt, by bolt be fixed in successively the bottom foundation pad on, the bottom fixedly the seal plate full weld on steel cylinder; The top of steel cylinder is welded with circular sealing steel plate.This patent is at steel cylinder outside weldings seal plate, and bottom fixedly seal plate is fixed on the foundation pad, and does not have waterproof measure at the vertical position of steel cylinder outer wall and sole plate handing-over.
7 application numbers are that to disclose " job practices of dewatering well in underground concrete structure " the method be the dewatering well that arranges for the bottom of underground structure in foundation ditch to the Chinese patent of CN201010257069.4, downcomer is set in dewatering well, the lower port of downcomer is connected with water pump, the upper port of downcomer is along drawing to a side in the concrete floor to be cast, and rear upwards the setting to being higher than the groundwater table plane along foundation ditch located; Perhaps the upper port of downcomer is along in the concrete floor to be cast, with with concrete wall to be cast that the concrete floor one is connected in upwards arrange and be higher than place, groundwater table plane, restart water pump, carry out precipitation, implement afterwards the cast of concrete floor and side wall, treat concrete setting, stop precipitation after reaching prescribed strength, last shutoff downcomer upper port.The present invention has not only reduced the groundwater pressure of dewatering well sealing part, and makes the sealing processing of gutter simpler and easy, thereby has avoided dealing with the structure drainage that occurs improperly because of the gutter sealing.This patent basis and dewatering well steel sleeve handing-over position do not have waterproof measure, also need the problem of precipitation when being not suitable for solving foundation construction.
8 application numbers are that the Chinese patent of CN200710113460.5 discloses " waterproof of precipitation well in foundation pit and plugging construction method ", are specifically related to wider, the construction techniques when precipitation is darker of foundation ditch.Also be applicable to common foundation ditch in waterproof and the shutoff of intermediate arrangement dewatering well.Before soil excavation, at foundation ditch intermediate arrangement dewatering well, in dewatering well, place the PVC plastic pipe with the dewatering well degree of depth, when constructing, concrete cushion buries steel sleeve underground, build at concrete floor and to finish to stop precipitation the time, adopt graded sand and stone, dry cement that dewatering well is carried out shutoff, adopt pipe flange lid and rubber washer to carry out shutoff to steel sleeve, expansive concrete is built on the steel sleeve upper strata.Although turn over seal ring bottom to steel sleeve on this patent waterproofing course, waterproofing course is not done topping, when construction of bottom plates, be easy to waterproofing course is destroyed, thus the problem that causes the plugging dewatering well waterproof not seal.
9 application numbers are that the Chinese patent of CN201110295253.2 discloses " a kind of construction method for adding water lowering well in water collecting well ", and it may further comprise the steps: the round steel pipe dewatering well structure for preparing is squeezed in the diapire of described collecting well until meet the requirements of absolute altitude; Soil in the round steel pipe is removed; The backfill rubble is as the drainage layer at the bottom of the round steel pipe pipe; Water pump is put to the round steel pipe the observing water level situation to draw water; On the sidewall of collecting well and diapire, lay successively bed course, waterproofing course and fish tail and waterproof layer and recover construction; The reinforcing bar of colligation collecting well sidewall and diapire outside fish tail and waterproof layer is built the concrete of collecting well diapire and sidewall; The described round steel pipe of shutoff top.Adopt the inventive method: job practices is easy, speed of application is fast, cost is low, intensity is high, can effectively solve the slight crack of water-stop curtain causes seepage, make in the destroyed situation of the waterproofing course of the collecting well that closes on and in time water is discharged to the base plate following provisions degree of depth, satisfied basement construction requirement and simple in structure.The compartment of terrain is welded with upper track seal ring and lower road seal ring on this patent round steel pipe outer wall, and the vertical position of round steel pipe outer wall and sole plate handing-over does not have waterproof measure.So this patent is only suitable for the slight crack of water-stop curtain and causes seepage, make in the destroyed situation of the waterproofing course of the collecting well that closes on and use the described dewatering well job practices of this patent.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, firm, and the shut-in well system is tight, sealing effect good, and has a kind of dewatering well shut-in well waterproof construction structure of triple waterproof effect functions.
A kind of dewatering well shut-in well waterproof construction structure of the present utility model, it comprises dewatering well foundation pad on every side, the steel bushing of dewatering well shut-in well usefulness buries and is placed in the foundation ditch, be provided with steel plate for sealing water on the described steel bushing outer wall, be equipped with waterproof roll and described waterproof roll at described foundation pad and roll up to sealing steel plate bottom along the steel bushing outer wall always, built the pea gravel concreten topping at the waterproof roll that is positioned on the described foundation pad; At the waterproof roll outer wall card that is positioned on the steel bushing outer wall splash guard is arranged, described splash guard is comprised of two semi-circular splash guard docking, in described splash guard outer hoop copper bar is arranged, be marked with fluid sealant on the interface position of described two semi-circular splash guards docking and whole splash guard top and steel plate for sealing water diapire intersection; Built underplate concrete at described pea gravel concreten topping; in described steel bushing, bury and be placed with hush panel; described hush panel has feeding port, overfall, cement injection mouth, water glass adhesive and pours into mouth, pours at described reservation feeding port, overfall, cement injection mouth, water glass adhesive to be embedded with respectively loading pipe, bleed off pipe, cement injection pipe, water glass adhesive in the mouth and to pour into pipe.
The beneficial effect of the utility model structure is: simple in structure, the shut-in well system is tight, sealing effect good, sound construction.After inserting rubble in the loading pipe, injected water mud, the cement paste sclerosis is rear waterproof, and the space between rubble is filled up, and strengthens the intensity of dewatering well well head bottom ground, guarantees the fastness of structure.In the hush panel bottom surface priming charge glass cement is arranged in addition, the concrete of a large label of building is arranged in the hush panel top face steel bushing, consisted of a tight shut-in well system with underplate concrete on every side.And has a dewatering well shut-in well system of triple waterproof effect functions, at first be provided with steel plate for sealing water on the steel bushing outer wall, secondly laying water-proof coiled material and described waterproof roll are rolled up to sealing steel plate bottom along the steel bushing outer wall always on foundation pad, and latter two semi-circular splash guard docking is stuck on the waterproof roll outer wall that is positioned on the steel bushing outer wall.Whole dewatering well shut-in well waterproofing system has solved waterproofing work and the construction problems such as the plugging dewatering well in later stage and waterproof closure of dewatering well and sole plate junction in the foundation ditch well.
Description of drawings
Accompanying drawing is the constructing structure schematic diagram that adopts a kind of dewatering well shut-in well of the utility model waterproof construction structure.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
A kind of dewatering well shut-in well waterproof construction structure of the present utility model as shown in the figure, it comprises dewatering well foundation pad 6 on every side, the steel bushing 1 of dewatering well shut-in well usefulness buries and is placed in the foundation ditch, be provided with steel plate for sealing water 3 on the described steel bushing outer wall, be equipped with waterproof roll 7 and described waterproof roll 7 is rolled up to sealing steel plate 3 bottoms along steel bushing 1 outer wall at described foundation pad 6 always, built pea gravel concreten topping 8 at the waterproof roll that is positioned on the described foundation pad; At the waterproof roll 7 outer walls card that is positioned on steel bushing 1 outer wall splash guard 15 is arranged, described splash guard 15 is comprised of two semi-circular splash guard docking, in described splash guard 15 outer hoops copper bar 9 is arranged, be marked with fluid sealant 5 on the interface position of described two semi-circular splash guards, 15 docking and whole splash guard 15 tops and steel plate for sealing water 3 diapire intersections; Built underplate concrete at described pea gravel concreten topping 8; in described steel bushing 1, bury and be placed with hush panel 2; described hush panel 2 has feeding port, overfall, cement injection mouth, water glass adhesive and pours into mouth, pours at described reservation feeding port, overfall, cement injection mouth, water glass adhesive to be embedded with respectively loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive in the mouth and to pour into pipe 13.
Preferred copper bar 9 hoops are in the splash guard 15 outer wall centre positions of described two semicircles composition.
Steel bushing 1 inwall circumference preferred and foundation pad bottom same position is symmetrically welded four sealing integrated circuit boards 4, and described hush panel 2 bottoms are welded on the sealing integrated circuit board 4.Advantage is: four sealing integrated circuit boards firmly are welded on the steel bushing inwall circumference, and these four sealing integrated circuit boards are equivalent to the bearing of hush panel, and hush panel is connected with steel bushing by the sealing integrated circuit board securely.
This construction method is as follows: (1) carries out the dewatering well construction of foundation pad 6 on every side; (2) bury the steel bushing 1 of putting the interior dewatering well shut-in well usefulness of foundation ditch, be provided with steel plate for sealing water 3 on the described steel bushing outer wall; (3) laying water-proof coiled material 7 and described waterproof roll 7 are rolled up to sealing steel plate 3 bottoms along steel bushing 1 outer wall always on described foundation pad 6, then build pea gravel concreten topping 8 at the waterproof roll 7 that is positioned on the described foundation pad 6; (4) 15 docking of two semi-circular splash guards are stuck in being positioned on the waterproof roll outer wall on steel bushing 1 outer wall shown in 7-1 among the figure; (5) adopt the whole splash guard 15 of copper bar 9 bandings; (6) interface position and whole splash guard 15 tops and the steel plate for sealing water 3 diapire intersections injection fluid sealant 5 that dock at described two semi-circular splash guards 15; (7) carry out base plate 14 reinforcing bar bindings at described pea gravel concreten topping 8, underplate concrete is built; (8) undertaken drawing water in the dewatering well by steel bushing 1 according to on-site actual situations, exhaust the recession pump; (9) bury in described steel bushing 1 and put hush panel 2, described hush panel 2 is reserved with feeding port, overfall, cement injection mouth, water glass adhesive and pours into mouth; (10) pour at described reservation feeding port, overfall, cement injection mouth, water glass adhesive and imbed respectively loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive in the mouth and pour into pipe 13; (11) in described loading pipe 10, insert rubble after, at described cement injection pipe 12 interior injected water mud, annotate when having slurries to flow out in the bleed off pipe 11 and stop injected water mud, pour into to manage in 13 at described water glass adhesive and pour into one deck water glass adhesive; (12) the described loading pipe 10 of extraction, bleed off pipe 11, cement injection pipe 12, water glass adhesive pour into pipe 13; (13) at the described steel bushing concreting that is positioned at 1-1 above the hush panel.
Claims (3)
1. dewatering well shut-in well constructing structure, it is characterized in that: it comprises dewatering well foundation pad on every side, the steel bushing of dewatering well shut-in well usefulness buries and is placed in the foundation ditch, be provided with steel plate for sealing water on the described steel bushing outer wall, be equipped with waterproof roll and described waterproof roll at described foundation pad and roll up to sealing steel plate bottom along the steel bushing outer wall always, built the pea gravel concreten topping at the waterproof roll that is positioned on the described foundation pad; At the waterproof roll outer wall card that is positioned on the steel bushing outer wall splash guard is arranged, described splash guard is comprised of two semi-circular splash guard docking, in described splash guard outer hoop copper bar is arranged, be marked with fluid sealant on the interface position of described two semi-circular splash guards docking and whole splash guard top and steel plate for sealing water diapire intersection; Built underplate concrete at described pea gravel concreten topping; in described steel bushing, bury and be placed with hush panel; described hush panel has feeding port, overfall, cement injection mouth, water glass adhesive and pours into mouth, pours at described reservation feeding port, overfall, cement injection mouth, water glass adhesive to be embedded with respectively loading pipe, bleed off pipe, cement injection pipe, water glass adhesive in the mouth and to pour into pipe.
2. dewatering well according to claim 1 shut-in well constructing structure is characterized in that: described copper bar hoop is in splash guard outer wall centre position that two semicircles form.
3. dewatering well according to claim 2 shut-in well constructing structure, it is characterized in that: be symmetrically welded with four sealing integrated circuit boards with the steel bushing inwall circumference of described foundation pad bottom same position, described hush panel bottom is welded on the sealing integrated circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442483 CN202730786U (en) | 2012-08-31 | 2012-08-31 | Well-sealing waterproof construction structure of dewatering well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442483 CN202730786U (en) | 2012-08-31 | 2012-08-31 | Well-sealing waterproof construction structure of dewatering well |
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| CN202730786U true CN202730786U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220442483 Expired - Fee Related CN202730786U (en) | 2012-08-31 | 2012-08-31 | Well-sealing waterproof construction structure of dewatering well |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334444A (en) * | 2013-07-09 | 2013-10-02 | 中国一冶集团有限公司 | Decompression type blocking method for foundation pit dewatering well |
| CN104060620A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Karst fissure water control method for deep foundation pit |
| CN107504262A (en) * | 2017-08-07 | 2017-12-22 | 上海公路桥梁（集团）有限公司 | River push pipe pipeline is got in a kind of soft soil layer and moves back pipe construction method |
| CN112302714A (en) * | 2020-10-23 | 2021-02-02 | 中国建筑第八工程局有限公司 | Dewatering well sealing system and construction method thereof |
| CN114351740A (en) * | 2022-01-14 | 2022-04-15 | 成都华阳建筑股份有限公司 | Plugging method for high-water-level basement pressure-bearing dewatering well |
| CN117266212A (en) * | 2023-11-23 | 2023-12-22 | 北京建工集团有限责任公司 | Low-cost dewatering method for foundation pit positioned in runoff-type interlayer water-containing stratum |
-
2012
- 2012-08-31 CN CN 201220442483 patent/CN202730786U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060620A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Karst fissure water control method for deep foundation pit |
| CN104060620B (en) * | 2013-03-20 | 2016-08-10 | 中国二十冶集团有限公司 | Deep basal pit Karst Fissures water controling method |
| CN103334444A (en) * | 2013-07-09 | 2013-10-02 | 中国一冶集团有限公司 | Decompression type blocking method for foundation pit dewatering well |
| CN103334444B (en) * | 2013-07-09 | 2016-04-20 | 中国一冶集团有限公司 | A kind of method for blocking of foundation pit dewatering well pressure release type |
| CN107504262A (en) * | 2017-08-07 | 2017-12-22 | 上海公路桥梁（集团）有限公司 | River push pipe pipeline is got in a kind of soft soil layer and moves back pipe construction method |
| CN112302714A (en) * | 2020-10-23 | 2021-02-02 | 中国建筑第八工程局有限公司 | Dewatering well sealing system and construction method thereof |
| CN114351740A (en) * | 2022-01-14 | 2022-04-15 | 成都华阳建筑股份有限公司 | Plugging method for high-water-level basement pressure-bearing dewatering well |
| CN117266212A (en) * | 2023-11-23 | 2023-12-22 | 北京建工集团有限责任公司 | Low-cost dewatering method for foundation pit positioned in runoff-type interlayer water-containing stratum |
| CN117266212B (en) * | 2023-11-23 | 2024-02-09 | 北京建工集团有限责任公司 | Precipitation method for foundation pit located in runoff-type interlayer water-containing stratum |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150831 |
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