CN102797266A - Well sealing waterproof construction method for dewatering well - Google Patents
Well sealing waterproof construction method for dewatering well Download PDFInfo
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- CN102797266A CN102797266A CN2012103198373A CN201210319837A CN102797266A CN 102797266 A CN102797266 A CN 102797266A CN 2012103198373 A CN2012103198373 A CN 2012103198373A CN 201210319837 A CN201210319837 A CN 201210319837A CN 102797266 A CN102797266 A CN 102797266A
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 238000010276 construction Methods 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 132
- 239000010959 steel Substances 0.000 claims abstract description 132
- 239000004568 cement Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 238000001556 precipitation Methods 0.000 claims description 87
- 239000000853 adhesive Substances 0.000 claims description 30
- 230000001070 adhesive effect Effects 0.000 claims description 30
- 235000019353 potassium silicate Nutrition 0.000 claims description 30
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 30
- 238000003466 welding Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000027455 binding Effects 0.000 claims description 5
- 238000009739 binding Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 239000011241 protective layer Substances 0.000 abstract 2
- 238000005086 pumping Methods 0.000 abstract 1
- 239000012945 sealing adhesive Substances 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 9
- 239000003673 groundwater Substances 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 7
- 208000034189 Sclerosis Diseases 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The invention discloses a well sealing waterproof construction method for a dewatering well. The method comprises the following steps of: (1) constructing a foundation bed on the surrounding of the dewatering well; (2) embedding a steel sleeve for sealing the dewatering well in a foundation pit; (3) laying a waterproof roll material on the foundation bed, and then pouring a fine aggregate concrete protective layer on the waterproof roll material; (4) clamping a waterproof plate on the outer wall of the waterproof roll material on the outer wall of the steel sleeve in an abutted way; (5) clamping the waterproof plate by using a copper strip; (6) injecting a sealing adhesive to the waterproof plate; (7) pouring bottom plate concrete to the fine aggregate concrete protective layer; (8) pumping water; (9) embedding a sealing plate in the steel sleeve; (10) after filling gravels into a filling pipe, injecting a cement paste into a cement paste injection pipe, and stopping the injection of the cement paste until the paste in an overflow pipe flows out; and (11) pouring concrete into the steel sleeve above the sealing plate. Through the adoption of the well sealing waterproof construction method disclosed by the invention, a waterproof treatment problem at the connection of the dewatering well in the foundation pit and the foundation bottom plate in the whole dewatering well sealing waterproof system is solved.
Description
Technical field
The present invention relates to a kind of job practices of precipitation well, relate in particular to a kind of job practices of precipitation 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 increasingly high 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 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 precipitation well in the foundation ditch; Not only need precipitation before the soil excavation; And the needs that have last till that basement construction finishes, have in addition the longer time, this just requires this part precipitation well when sole plate is constructed, can not seal; Thereby carry out the work such as waterproofing work of this part precipitation well and sole plate junction, shutoff of precipitation well and the waterproof closure of carrying out the later stage simultaneously just become a great problem.
Learn the patent of having authorized through retrieval:
1 application number is that the Chinese patent of CN201120242057.4 discloses " precipitation well plugging system "; Comprise and connect steel pipe and seal plate; The connection steel pipe passes the basement sole plate and is fixed on the precipitation well well head; The outer face down bonding seal plate of steel pipe is characterized in that: also comprise screw thread supporting and screw thread closure plate; The inboard welding of said connection steel pipe screw thread supporting, screw thread closure plate and screw thread supporting flexibly connect and are one.The screw thread of said screw thread closure plate is provided with the hole that passes the rope made of hemp.The said rope made of hemp passes hole and is fastened in the screw thread of screw thread closure plate.The upper surface outer of said screw thread closure plate is stuck point fixedly.The upper surface hold-doun nut of said screw thread closure plate.This patent is face down bonding seal plate outside steel pipe just, 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 " precipitation well shut-in well device "; Dewatering was with the technical field of device when the utility model belonged to the construction work foundation construction; Be specifically related to a kind of precipitation well shut-in well device; Solved groundwater pressure or water yield when big, the method for existing water level lowering well sealing possibly cause shutoff hidden danger of quality or problem that can't shutoff.Precipitation well shut-in well device; Comprise the steel deck-plate that steel sleeve that precipitation well well casing top is sheathed and steel sleeve top are provided with; The connected mode that it is characterized in that steel sleeve and steel deck-plate is that flange is connected, and between the contact surface of junction rubber pad is set, and wears 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 precipitation well construction, sealing back water guide is led underground water by stifled becoming earlier, and the water burst problem when having solved shutoff makes precipitation well shutoff process not stay hidden danger of quality and construct easy to operate.
The 1st～2 patent is face down bonding seal plate outside steel pipe, can not guarantee the sealing problem that the precipitation well is connected with base plate fully.
3 application numbers are that the Chinese patent of CN201120146835.X discloses " a kind of precipitation well enclosed construction ", and this structure is positioned at sole plate, waters the hole after said 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 is fixed in the shutoff steel plate on the steel casing delivery port; Said shutoff steel plate is provided with outlet pipe; Said outlet pipe is provided with stop valve, and said stop valve is positioned at and waters the hole after said, waters after said 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 stopped osmosis path of underground water effectively, and makes be convenient to control the opportunity of shut-in well.And the utility model is simple in structure, easy construction.Though this patent steel casing outer peripheral face is provided with a lot of anti-drainage facilities, the shutoff 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 " precipitation well shut-in well sleeve pipe "; The utility model relates to a kind of precipitation well shut-in well sleeve pipe, is made up of 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 precipitation well casing, with snap ring cover closure ring place in the sealing of steel sleeve, and in the sealing of steel sleeve the ring and the snap ring cover plate between be lined with the expansion waterstop.The steel sleeve of the utility model has the advantage of guarantee the minimum really plated construction and shut-in well quality easy for installation, swift to operate.Solved groundwater table height and underground water area in plenty uncompacted problem of shunting in a well.This patent can not solve the waterproof closed question at basis and precipitation well shut-in well sleeve pipe 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 ", and it is positioned at the suitable for reading of precipitation well, are fixed with a well head pipe precipitation 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 through part welding and be threaded and realize the sealing of precipitation well, blocked osmosis path of underground water fully, need be in well backfill rubble and concrete.Sealing effect is good, easy construction, and speed of application is fast, can accomplish capping operation in general 20 minutes; Can reduce construction cost, save 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 precipitation well shut-in well sleeve pipe 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 enclosuring structure in the sole plate "; The utility model provides a kind of sole plate of building engineering field interior precipitation well enclosuring structure; The top of no sandpipe is set to steel cylinder in its structure; The outside of steel cylinder bottom is a foundation pad, and the top of foundation pad sets gradually and is bottom fixedly seal plate, rubber sheet gasket, waterproofing course, rubber sheet gasket, movable annular steel plate, and the top of movable annular steel plate is provided with bolt; Through 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 circle and seals 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 precipitation well in the underground concrete structure " this method be the precipitation well that is provided with to the bottom of underground structure in foundation ditch to the Chinese patent of CN201010257069.4; In the precipitation well, downcomer is set; The lower port of downcomer is connected with water pump; The port of downcomer is along drawing to a side in the concrete floor to be cast, and the back upwards is arranged to along foundation ditch and is higher than place, groundwater table plane; Perhaps the 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 be provided with and be higher than place, groundwater table plane, restart water pump, carry out precipitation; Implement the cast of concrete floor and side wall afterwards; Treat concrete setting, stop precipitation after reaching prescribed strength, last shutoff downcomer port.The present invention has not only reduced the groundwater pressure of precipitation well sealing part, and make gutter to seal processing simpler and easy, thereby avoided dealing with the structure drainage that occurs improperly because of gutter seals.This patent basis and precipitation 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 foundation ditch broad, the precipitation construction techniques when dark.Also be applicable to of waterproof and the shutoff of common foundation ditch at intermediate arrangement precipitation well.Before soil excavation; At foundation ditch intermediate arrangement precipitation well, in the precipitation well, place PVC plastic pipe with the precipitation depth,, concrete cushion buries steel sleeve when constructing underground; Build completion precipitation can be stopped the time at concrete floor; Adopt graded sand and stone, dry cement that the precipitation 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.Though turn over seal ring bottom to steel sleeve on this patent waterproofing course, waterproofing course is not done topping,, base plate is easy to waterproofing course is destroyed when constructing, thus the problem that causes precipitation well shutoff waterproof not seal.
9 application numbers are that the Chinese patent of CN201110295253.2 discloses " increasing precipitation well construction method in a kind of collecting well ", and it may further comprise the steps: the round steel pipe precipitation well construction for preparing is squeezed in the diapire of described collecting well until meeting 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 bed course, waterproofing course and fish tail and waterproof layer successively 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 under the ruined situation of 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 following 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.Cause seepage so this patent only is fit to the slight crack of water-stop curtain, make under the ruined situation of waterproofing course of the collecting well that closes on and use the described precipitation well construction of this patent method.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of simple in structure, firm, the shut-in well system is tight, sealing effect good, and has a kind of precipitation well shut-in well waterproof construction method of triple waterproof effect functions.
A kind of precipitation well shut-in well waterproof construction method of the present invention, it may further comprise the steps:
(1) carries out the construction of foundation pad on every side of precipitation well;
(2) bury the steel bushing of putting the interior precipitation well shut-in well usefulness of foundation ditch, described steel bushing outer wall is provided with steel plate for sealing water;
(3) laying water-proof coiled material and described waterproof roll are rolled up to the steel plate for sealing water bottom along the steel bushing outer wall always on described foundation pad, on the waterproof roll that is positioned on the described foundation pad, build the pea gravel concreten topping then;
(4) two semi-circular splash guard butt joints are stuck on the waterproof roll outer wall that is positioned on the steel bushing outer wall;
(5) adopt the whole splash guard of copper bar banding;
(6) interface position and whole splash guard top and the steel plate for sealing water diapire intersection injection fluid sealant that dock at described two semi-circular splash guards;
(7) on described pea gravel concreten topping, carry out the base plate reinforcing bar binding, underplate concrete is built;
(8) carry out drawing water in the precipitation well through steel bushing according to on-site actual situations, exhaust the recession pump;
(9) in described steel bushing, bury and put hush panel, described hush panel 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 loading pipe, bleed off pipe, cement injection pipe, water glass adhesive in the mouth respectively and pour into pipe;
(11) in described loading pipe, insert rubble after, in described cement injection pipe, inject cement paste, annotate when having slurries to flow out in the bleed off pipe and stop to inject cement paste, pour at described water glass adhesive and pour into one deck water glass adhesive in the pipe;
(12) extract described loading pipe, bleed off pipe, cement injection pipe, water glass adhesive out and pour into pipe;
(13) at the described steel bushing concreting that is positioned at above the hush panel.
The beneficial effect of the inventive method is: simple in structure, the shut-in well system is tight, sealing effect good, sound construction.After inserting rubble in the loading pipe, inject cement paste, cement paste sclerosis back is waterproof, and fills up the space between rubble, strengthens the intensity of precipitation 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 big label of building is arranged in the hush panel top face steel bushing, constituted a tight shut-in well system with underplate concrete on every side.And has a precipitation well shut-in well system of triple waterproof effect functions; At first the steel bushing outer wall is provided with steel plate for sealing water; Secondly laying water-proof coiled material and described waterproof roll are rolled up to the steel plate for sealing water bottom along the steel bushing outer wall always on foundation pad, and latter two semi-circular splash guard butt joint is stuck on the waterproof roll outer wall that is positioned on the steel bushing outer wall.Whole precipitation well shut-in well waterproofing system has solved precipitation well and the waterproofing work and the construction problems such as the precipitation well shutoff in later stage and waterproof closure of sole plate junction in the foundation ditch well.
Description of drawings
Accompanying drawing is the constructing structure sketch map that adopts a kind of precipitation well shut-in well of the present invention waterproof construction method.
The specific embodiment
Describe the present invention below in conjunction with accompanying drawing and specific embodiment.
A kind of precipitation well shut-in well waterproof construction method of the present invention as shown in the figure, it may further comprise the steps: the construction of foundation pad 6 on every side of precipitation well is carried out in (1); (2) bury the steel bushing 1 of putting the interior precipitation well shut-in well usefulness of foundation ditch, described steel bushing outer wall is provided with steel plate for sealing water 3; (3) laying water-proof coiled material 7 and described waterproof roll 7 are rolled up to steel plate for sealing water 3 bottoms along steel bushing 1 outer wall always on described foundation pad 6, on the waterproof roll 7 that is positioned on the described foundation pad 6, build pea gravel concreten topping 8 then; (4) two semi-circular splash guard 15 butt joints 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) on described pea gravel concreten topping 8, carry out the reinforcing bar binding of base plate 14, the concreting of base plate; (8) carry out drawing water in the precipitation well through steel bushing 1 according to on-site actual situations, exhaust the recession pump; (9) in described steel bushing 1, bury 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 loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive in the mouth respectively and pour into pipe 13; (11) in described loading pipe 10, insert rubble after, in described cement injection pipe 12, inject cement paste, annotate when having slurries to flow out in the bleed off pipe 11 and stop to inject cement paste, in described water glass adhesive pours into pipe 13, pour into one deck water glass adhesive; (12) extract described loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive out and pour into pipe 13; (13) at the described steel bushing concreting that is positioned at 1-1 above the hush panel.
Copper bar 9 hoops in the preferred described step (5) are in the splash guard 15 outer wall centre positions of described two semicircles composition.
Preferably in described step (9), seal integrated circuit board 4 with four of the steel bushing inwall circumference symmetry welding of foundation pad bottom same position, described hush panel 2 bottoms are welded on seals on the integrated circuit board 4.Advantage is: four are sealed integrated circuit board and firmly are welded on the steel bushing inwall circumference, and these four are sealed the bearing that integrated circuit board is equivalent to hush panel, and hush panel is connected with steel bushing through sealing integrated circuit board securely.
Concrete in the preferred described step (13) is than the big label of underplate concrete.Advantage is: the steel bushing inner concrete of hush panel top is an after-pouring, and the big label of concrete can improve the concrete intensity in this position, thereby with steel bushing, underplate concrete organically are combined into an integral body on every side.
(1) carries out the construction of foundation pad 6 on every side of precipitation well; (2) bury the steel bushing 1 of putting the interior precipitation well shut-in well usefulness of foundation ditch, described steel bushing outer wall is provided with steel plate for sealing water 3; (3) laying water-proof coiled material 7 and described waterproof roll 7 are rolled up to steel plate for sealing water 3 bottoms along steel bushing 1 outer wall always on described foundation pad 6, on the waterproof roll layer 7 that is positioned on the described foundation pad 6, build pea gravel concreten topping 8 then; (4) two semi-circular splash guard 15 butt joints 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) on described pea gravel concreten topping 8, carry out base plate 14 reinforcing bar bindings, base plate 14 concretings; (8) carry out drawing water in the precipitation well through steel bushing 1 according to on-site actual situations, exhaust the recession pump; (9) in described steel bushing 1, bury 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 loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive in the mouth respectively and pour into pipe 13; (11) in described loading pipe 10, insert rubble after, in described cement injection pipe 12, inject cement paste, annotate when having slurries to flow out in the bleed off pipe 11 and stop to inject cement paste, in described water glass adhesive pours into pipe 13, pour into one deck water glass adhesive; (12) extract described loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive out and pour into pipe 13; (13) at the described steel bushing concreting that is positioned at 1-1 above the hush panel, concrete is than the big label of underplate concrete.
Through using, the inventive method is simple in structure, and the shut-in well system is tight, sealing effect good, sound construction.After inserting rubble in the loading pipe, inject cement paste, cement paste sclerosis back is waterproof, and fills up the space between rubble, strengthens the intensity of precipitation 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 big label of building is arranged in the hush panel top face steel bushing, constituted a tight shut-in well system with underplate concrete on every side.And has a precipitation well shut-in well system of triple waterproof effect functions; At first the steel bushing outer wall is provided with steel plate for sealing water; Secondly laying water-proof coiled material and described waterproof roll are rolled up to the steel plate for sealing water bottom along the steel bushing outer wall always on foundation pad, and latter two semi-circular splash guard butt joint is stuck on the waterproof roll outer wall that is positioned on the steel bushing outer wall.Whole precipitation well shut-in well waterproofing system has solved precipitation well and the waterproofing work and the construction problems such as the precipitation well shutoff in later stage and waterproof closure of sole plate junction in the foundation ditch well.
(1) carries out the construction of foundation pad 6 on every side of precipitation well; (2) bury the steel bushing 1 of putting the interior precipitation well shut-in well usefulness of foundation ditch, described steel bushing outer wall is provided with steel plate for sealing water 3; (3) laying water-proof coiled material 7 and described waterproof roll 7 are rolled up to steel plate for sealing water 3 bottoms along steel bushing 1 outer wall always on described foundation pad 6, on the waterproof roll layer 7 that is positioned on the described foundation pad 6, build pea gravel concreten topping 8 then; (4) two semi-circular splash guard 15 butt joints are stuck on the waterproof roll outer wall that is positioned on steel bushing 1 outer wall; (5) adopt the whole splash guard 15 of copper bar 9 bandings; Copper bar 9 hoops are in the splash guard 15 outer wall centre positions of described two semicircles composition.(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) on described pea gravel concreten topping 8, carry out base plate 14 reinforcing bar bindings, base plate 14 concretings; (8) carry out drawing water in the precipitation well through steel bushing 1 according to on-site actual situations, exhaust the recession pump; (9) in described steel bushing 1, bury and put hush panel 2, seal integrated circuit board 4 with four of the steel bushing inwall circumference symmetry welding of foundation pad bottom same position, described hush panel 2 bottoms are welded on seals on the integrated circuit board 4.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 loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive in the mouth respectively and pour into pipe 13; (11) in described loading pipe 10, insert rubble after, in described cement injection pipe 12, inject cement paste, annotate when having slurries to flow out in the bleed off pipe 11 and stop to inject cement paste, in described water glass adhesive pours into pipe 13, pour into one deck water glass adhesive; (12) extract described loading pipe 10, bleed off pipe 11, cement injection pipe 12, water glass adhesive out and pour into pipe 13; (13) at the described steel bushing concreting that is positioned at 1-1 above the hush panel, concrete is than the big label of underplate concrete.
Through using, the inventive method is simple in structure, and the shut-in well system is tight, sealing effect good, sound construction.After inserting rubble in the loading pipe, inject cement paste, cement paste sclerosis back is waterproof, and fills up the space between rubble, strengthens the intensity of precipitation 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 big label of building is arranged in the hush panel top face steel bushing, constituted a tight shut-in well system with underplate concrete on every side.And has a precipitation well shut-in well system of triple waterproof effect functions; At first the steel bushing outer wall is provided with steel plate for sealing water; Secondly laying water-proof coiled material and described waterproof roll are rolled up to the steel plate for sealing water bottom along the steel bushing outer wall always on foundation pad, and latter two semi-circular splash guard butt joint is stuck on the waterproof roll outer wall that is positioned on the steel bushing outer wall.Other four are sealed integrated circuit board and firmly are welded on the steel bushing inwall circumference, and these four are sealed the bearing that integrated circuit board is equivalent to hush panel, and hush panel is connected with steel bushing through sealing integrated circuit board securely.Whole precipitation well shut-in well waterproofing system has solved precipitation well and the waterproofing work and the construction problems such as the precipitation well shutoff in later stage and waterproof closure of sole plate junction in the foundation ditch well.
Claims (4)
1. precipitation well shut-in well waterproof construction method is characterized in that it may further comprise the steps:
(1) carries out the construction of foundation pad on every side of precipitation well;
(2) bury the steel bushing of putting the interior precipitation well shut-in well usefulness of foundation ditch, described steel bushing outer wall is provided with steel plate for sealing water;
(3) laying water-proof coiled material and described waterproof roll are rolled up to the steel plate for sealing water bottom along the steel bushing outer wall always on described foundation pad, on the waterproof roll that is positioned on the described foundation pad, build the pea gravel concreten topping then;
(4) two semi-circular splash guard butt joints are stuck on the waterproof roll outer wall that is positioned on the steel bushing outer wall;
(5) adopt the whole splash guard of copper bar banding;
(6) interface position and whole splash guard top and the steel plate for sealing water diapire intersection injection fluid sealant that dock at described two semi-circular splash guards;
(7) on described pea gravel concreten topping, carry out the base plate reinforcing bar binding, underplate concrete is built;
(8) carry out drawing water in the precipitation well through steel bushing according to on-site actual situations, exhaust the recession pump;
(9) in described steel bushing, bury and put hush panel, described hush panel 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 loading pipe, bleed off pipe, cement injection pipe, water glass adhesive in the mouth respectively and pour into pipe;
(11) in described loading pipe, insert rubble after, in described cement injection pipe, inject cement paste, annotate when having slurries to flow out in the bleed off pipe and stop to inject cement paste, pour at described water glass adhesive and pour into one deck water glass adhesive in the pipe;
(12) extract described loading pipe, bleed off pipe, cement injection pipe, water glass adhesive out and pour into pipe;
(13) at the described steel bushing concreting that is positioned at above the hush panel.
2. precipitation well shut-in well waterproof construction method according to claim 1, it is characterized in that: the copper bar hoop in the described step (5) is in the splash guard outer wall centre position of described two semicircles composition.
3. precipitation well shut-in well waterproof construction method according to claim 1 and 2; It is characterized in that: in described step (9); Seal integrated circuit board with four of the steel bushing inwall circumference symmetry welding of foundation pad bottom same position, described hush panel 2 bottoms are welded on seals on the integrated circuit board.
4. precipitation well shut-in well waterproof construction method according to claim 3, it is characterized in that: the concrete in the described step (13) is than the big label of underplate concrete.
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| CN103498486A (en) * | 2013-10-17 | 2014-01-08 | 中建七局(上海)有限公司 | Method for blocking post-cast strip downcast pipe well through sleeve pipe |
| CN103726502A (en) * | 2013-12-12 | 2014-04-16 | 安徽省建筑科学研究设计院 | Base section sinking well with waterproof structure |
| CN104534216A (en) * | 2015-01-06 | 2015-04-22 | 无锡市政设计研究院有限公司 | Drainage pipeline and inspection well connection water stop structure |
| CN104929143A (en) * | 2015-04-27 | 2015-09-23 | 华东交通大学 | Well sealing method of dewatering well at bottom of foundation pit |
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| CN113202215A (en) * | 2021-04-25 | 2021-08-03 | 中冶南方城市建设工程技术有限公司 | Full concrete outer wall construction method |
| CN115787691A (en) * | 2022-12-01 | 2023-03-14 | 中建八局第二建设有限公司 | Construction method of well plugging device for dewatering well in underground water rich area |
| CN115874982A (en) * | 2022-12-30 | 2023-03-31 | 青海煤炭地质一0五勘探队 | Surface water burst treatment method for hydrological water well, geothermal well and brine well |
| CN116556385A (en) * | 2023-05-17 | 2023-08-08 | 大元建业集团股份有限公司 | Pneumatic dewatering device without sealing well in foundation pit and construction method of foundation pit |
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