CN110468862A - A kind of plugging structure for subway station precipitation well head - Google Patents
A kind of plugging structure for subway station precipitation well head Download PDFInfo
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- CN110468862A CN110468862A CN201910843731.5A CN201910843731A CN110468862A CN 110468862 A CN110468862 A CN 110468862A CN 201910843731 A CN201910843731 A CN 201910843731A CN 110468862 A CN110468862 A CN 110468862A
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- 238000001556 precipitation Methods 0.000 title claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 217
- 239000010959 steel Substances 0.000 claims abstract description 217
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 36
- 239000004567 concrete Substances 0.000 claims description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000353135 Psenopsis anomala Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000010410 reperfusion Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2450/00—Gaskets
- E02D2450/10—Membranes
- E02D2450/105—Membranes impermeable
- E02D2450/106—Membranes impermeable for liquids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention provides a kind of plugging structure for subway station precipitation well head, and it further includes steel pipe, reinforcing bar, steel plate, steel loop piece and armpit angle that the plugging structure, which includes the bottom plate above dewatering well,；The steel pipe extends out out of described dewatering well and enters the base plate interior；The reinforcing bar includes the top bars and lower layer's reinforcing bar for being respectively arranged on the base plate interior；The sheet-steel cover is set to the top of the steel pipe and is located at the top of the top bars, and the steel plate is fixedly connected with the top bars；The steel loop piece is set on the steel pipe and seals between the steel pipe；The armpit square ring around and be close to the steel pipe, be arranged below the bottom plate；Plugging structure of the invention further includes waterproof layer, plugging part can in-situ precast production and assembly, it is convenient to stack, and improves execution conditions, saves construction period；The rigidity of structure is big, improves the bearing capacity and seepage capability of structure after subway station precipitation well head blocks.
Description
Technical field
The invention belongs to dewatering well technical fields, and in particular to a kind of plugging structure for subway station precipitation well head.
Background technique
With the great development of China's underground space, before architectural engineering pit excavates, it is certain generally to shift to an earlier date the setting in hole
The drainage well and relief well lowering of watertable and hole bottom artesian water head of quantity, prevent bottom of foundation ditch is prominent from gushing, and guarantee to excavate and apply
The stability at working hour hole bottom.During metro station construction, the closure of subway station precipitation well head is usually after bottom slab concreting
It carries out, the hole later period that bottom plate can leave diameter 600mm or so pours.
Currently, the closure side for first filling out melon seeds piece and then slip casting Reperfu- sion concrete in well casing is taken in the closure of dewatering well more
Method.One side base plate thickness it is larger and directly near water, bear water pressure it is big, subway station precipitation well head part untensioned reinforcement, newly
Old concrete faying face is weaker, globality poor；Another aspect bottom plate soaks for a long time, since stress concentration is also easy to produce crack, prevents
Water is ineffective, is easy to happen percolating water phenomenon.It is therefore desirable to invent the simple and reliable structure of one kind to reduce subway station
The bad bring harm of precipitation well head sealing matter amount, improves stress, the waterproof performance of structure, guarantees the normal use of building.
Accordingly, it is desirable to provide a kind of be directed to the insufficient improved technology scheme of the above-mentioned prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of plugging structures for subway station precipitation well head, to subway station and ground
The subway station precipitation well head that lower room bottom plate is left effectively is blocked.
To achieve the goals above, the invention provides the following technical scheme:
A kind of plugging structure for subway station precipitation well head, the plugging structure include the bottom above dewatering well
Plate, the plugging structure further include steel pipe, reinforcing bar, steel plate, steel loop piece and armpit angle；
The steel pipe is vertical inside dewatering well, and the steel pipe extends out out of described dewatering well and enters the bottom
Intralamellar part；
The reinforcing bar includes the top bars set on the base plate interior upper layer, and under the base plate interior lower layer
Layer reinforcing bar, the top bars and lower layer's reinforcing bar are all set in the outside of the steel pipe；
The sheet-steel cover be connected to the upper end of the steel pipe and be located at the top bars top, the steel plate and it is described on
Layer reinforcing bar is fixedly connected；
The steel loop piece is set on the steel pipe and seals between the steel pipe, and the steel loop piece is arranged at the bottom
Intralamellar part；
The armpit square ring around and be close to the steel pipe, be arranged below the bottom plate；
Concrete has been poured inside the bottom plate, the steel pipe and the armpit angle.
As described above be used for subway station precipitation well head plugging structure, it is preferable that the steel loop piece have it is multiple, it is multiple
The steel loop piece is evenly distributed on the steel pipe up and down；
Preferably, steel loop piece described in lowest level is close to the lower surface of lower layer's reinforcing bar；
More preferably, between steel loop piece described in any two between be divided into 0.5m.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the plugging structure further includes preventing
Water layer, the waterproof layer include horizontal waterproof layer and vertical waterproof layer, and the horizontal waterproof layer is laid on most lower in the horizontal direction
Between the layer steel loop piece and the armpit angle, the vertical waterproof layer be laid on along the vertical direction the steel pipe and the armpit angle it
Between, it is sealed between the horizontal waterproof layer and the vertical waterproof layer.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the horizontal waterproof layer includes anti-
Water coiled material and water flange, the waterproof roll are close to be arranged between the water flange and the armpit angle；It is described horizontal anti-
The length of water layer exceeds steel loop piece outer edge, and the length of the vertical waterproof layer is identical as armpit angle lower edge.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the steel loop on piece is equipped with multiple
Through hole；
Preferably, steel loop piece surface is equipped with first rib, and the first rib protrudes from steel loop piece surface.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the surface of steel plate is equipped with second
Rib, second rib protrude from the surface of steel plate；
Preferably, second rib protrudes from the surface of steel plate 5mm.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the armpit angle is in reverse frustoconic.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the steel pipe and the steel loop piece
Seam crossing is equipped with rubber gasket；
Preferably, the material of the steel pipe and/or the steel loop piece and/or the steel plate is Q235-B steel；
More preferably, the steel pipe is located at twice that bottom base plate length below is the diameter of steel tube.
As described above be used for subway station precipitation well head plugging structure, it is preferable that the top bars and it is described under
Layer reinforcing bar includes more reinforcing bars, and the more reinforcing bars are arranged in a crisscross manner to form intersection region, and the area of intersection region is not small
In the area of the steel plate.
In the plugging structure for being used for subway station precipitation well head as described above, it is preferable that the concrete inside the armpit angle
Intensity is higher than the concrete strength of the base plate interior；
Preferably, the concrete inside the armpit angle is slightly expanded concrete.
Compared with the immediate prior art, technical solution provided by the invention has following excellent effect:
The bearing capacity that criss-cross reinforcing bar improves bottom plate is arranged in the upper and lower layer of bottom plate in the present invention, then on bottom plate
Steel plate is set at layer reinforcing bar, composite steel ring plate is set below steel plate, and the contact position of steel pipe and bottom plate is provided with armpit angle, increases
The strong stability and bearing capacity of structure, while the design of waterproof layer and gasket improves the seepage capability of plugging structure.
Plugging structure for subway station precipitation well head of the invention, plugging part can in-situ precast production and assembly,
Transport is stacked conveniently, is improved execution conditions, is saved construction period；And the rigidity of structure is big, overall performance is good, improves ground
The bearing capacity and seepage capability of structure, reduce crack developing and the destruction of new and old faying face after iron car station precipitation well head blocks.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.Wherein:
Fig. 1 is the cross-sectional view of plugging structure of the present invention；
Fig. 2 is the floor map of plugging structure of the present invention；
Fig. 3 is the structural schematic diagram of steel loop piece in Fig. 1；
Fig. 4 is partial enlarged view at A in Fig. 1.
In figure: 1, bottom plate；2, top bars；3, lower layer's reinforcing bar；4, steel plate；5, rubber gasket；6, steel loop piece；7, waterproof
Layer；71, horizontal waterproof layer；72, vertical waterproof layer；8, armpit angle；9, steel pipe；10, concrete filled steel tube；11, dewatering well；12, sealing
Flange.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the present invention rather than require the present invention that must be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.Term used in the present invention " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected,
It may be a detachable connection；It can be directly connected, can also be indirectly connected by intermediate member, for the common of this field
For technical staff, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figures 1 to 4, according to an embodiment of the invention, providing a kind of envelope for subway station precipitation well head
Bridging structure, the subway station precipitation well head which can leave subway station and basement bottom board are effectively sealed
It is stifled.
Plugging structure of the invention includes the bottom plate 1 positioned at 11 top of dewatering well, and the height of bottom plate 1 can be 600-
1000mm is provided with concrete cushion below bottom plate 1, it is preferable that concrete cushion can be the C20 concrete of 200mm thickness, seal
Bridging structure further includes steel pipe 9, reinforcing bar, steel plate 4, steel loop piece 6 and armpit angle 8.
Steel pipe 9 is vertical inside dewatering well 11, and diameter is less than the diameter of dewatering well 11, and steel pipe 9 is out of dewatering well 11
It extends out and enters inside bottom plate 1, i.e., the lower end of steel pipe 9 is located in dewatering well 11, and upper end is located at the bottom of 11 top of dewatering well
Inside plate 1；In specific embodiments of the present invention, the material of steel pipe 9 is Q235-B steel, and the outer diameter of steel pipe 9 is than 11 diameter of dewatering well
Small 300mm, thickness of steel pipe 8mm, steel pipe 9 are located at 2 times that 1 bottom of bottom plate length dimension below is diameter of steel tube.
Reinforcing bar includes the top bars 2 set on 1 inside upper layer of bottom plate, and set on lower layer's reinforcing bar 3 of 1 inside lower layer of bottom plate,
Top bars 2 and lower layer's reinforcing bar 3 are the steel bar stress of 1 structure of bottom plate, and form armored concrete after 1 casting concrete of bottom plate
Structure improves the bearing capacity of bottom plate 1.Top bars 2 and lower layer's reinforcing bar 3 are more reinforcing bars, between top bars 2 and lower layer's steel
It is to be arranged in a crisscross manner, and be truncated at steel pipe 9 between muscle 3, i.e., reinforcing bar forms cross arrangement along 9 periphery of steel pipe.Upper layer
It is arranged in a crisscross manner to form intersection region between next reinforcing bar between reinforcing bar 2, the area of intersection region is not less than the face of steel plate 4
Product.
Steel plate 4, which covers, is connected to the upper end of steel pipe 9, i.e. the steel plate nozzle that covers steel pipe 9, and connect with steel pipe 9, also covers and sets
In the central upper portion of top bars 2, steel plate 4 is fixedly connected with top bars 2；In a specific embodiment of the present invention, steel plate 4 is tight
It pastes top bars 2 and steel pipe 9 is arranged above, steel plate 4 is fully welded with 2 welt of top bars.Steel plate 4 and the upper end of steel pipe 9 also use
The mode that welt is fully welded is fixedly connected, and top of the top of steel plate 4 apart from bottom plate 1 is 50mm.
In a specific embodiment of the present invention, steel plate 4 uses Q235-B steel, and steel plate 4 is circle, and 4 diameter of steel plate is 3 times of drops
The diameter of well 11, steel plate 4 are equipped with the second rib with a thickness of 20mm, 4 surface of steel plate, and the second rib protrudes from 4 surface of steel plate；It is excellent
Selection of land, the second rib protrude from 4 surface 5mm of steel plate, be provided on steel plate 4 second rib effect be easy for preferably with bottom plate 1
Interior concrete combines, and enhances solidification effect.
Steel loop piece 6 is set on steel pipe 9 and is tightly connected between steel pipe 9, and welt is fully welded between steel loop piece 6 and steel pipe 9,
Steel loop piece 6 is arranged inside bottom plate 1；In a specific embodiment of the present invention, steel loop piece 6 uses Q235-B steel, and steel loop piece 6 is circle
The internal diameter of annular, steel loop piece 6 is identical as the outer diameter of steel pipe 9, and the outer diameter of steel loop piece 6 is equal to 4 diameter of steel plate；6 thickness of steel loop piece is
10mm, steel loop piece 6 have it is multiple, multiple steel loop pieces 6 along 9 short transverse of steel pipe up and down be evenly distributed on steel pipe 9 (in figure not all
Draw), between any two steel loop pieces 6 between be divided into 0.5m；Preferably, the lower surface that lowest level steel loop piece 6 is close to lower layer's reinforcing bar 3 is set
It sets, lowest level steel loop piece 6 is used to be fully welded and is fixedly connected with bottom layer of the reinforcing steel overlay segment.
In a specific embodiment of the present invention, steel loop piece 6 is equipped with multiple through holes, and multiple through holes are circumferentially uniformly arranged
Cloth, the effect of through hole are easy for being located at lower 1 inner concrete of bottom plate of steel plate 4 and pour closely knit, prevent bubble, raising bottom
The bearing capacity of plate 1；4 through holes, aperture 100mm are equipped with for circumferentially spaced-apart 90 ° on each steel loop piece 6.6 surface of steel loop piece is equipped with
First rib, first rib protrude from 6 surface of steel loop piece；Preferably, first rib protrudes from 6 surface 3mm of steel loop piece, steel loop piece
The first rib effect being arranged on 6 is identical as the second rib effect being arranged on steel plate 4, is for preferably and in bottom plate 1
Concrete combine, enhance solidification effect.The setting of steel loop piece 6 effectively has dispersed to apply from steel plate 4 to dewatering well 11
Load is dispersed to bottom plate 1 and armpit angle 8 by composite steel ring plate 6, and stress is effectively spread, and ensure that the stabilization of structure；This
Outside, it is provided with rubber gasket 5 between steel loop piece 6 and steel pipe 9 and also enhances plugging structure leakproofness, prevent from seeping water.
Armpit angle 8, which surround and is close to steel pipe 9, to be arranged below bottom plate 1；Armpit angle 8 is in reverse frustoconic, and the upper bottom surface at armpit angle 8 is under
Bevel edge wire clamp angle between bottom edge is 45 ° (i.e. the oblique line inclination angle of 8 longitudinal section of armpit angle is 45 °), and the bottom surface at armpit angle 8 abuts
In the well head of dewatering well 11, the thickness at armpit angle 8 is greater than the thickness of concrete cushion.The upper bottom surface diameter at armpit angle 8 is 9 diameter of steel pipe
3 times, bottom surface diameter is identical as 9 diameter of steel pipe.8 inside casting concrete of armpit angle, i.e. armpit angle 8 are concrete structure, coagulation
Native intensity is C35 grade, and waterproofing grade P10, concrete is slightly expanded concrete, so as to further to 1 shape of steel pipe 9 and bottom plate
It at sealing, prevents from seeping water, the setting at armpit angle 8 enhances shearing resistance and the punch resistant capability of structure.
Plugging structure plugging structure of the invention further includes waterproof layer 7, and waterproof layer 7 includes horizontal waterproof layer 71 and prevents vertically
Water layer 72, horizontal 71 horizontal direction of waterproof layer are laid between lowest level steel loop piece 6 and armpit angle 8, and vertical waterproof layer 72 is vertically to paving
It is located between steel pipe 9 and armpit angle 8 and is close to the setting of steel pipe 9, the seam crossing sealing between horizontal waterproof layer 7 and vertical waterproof layer 7.
7 horizontal direction length of waterproof layer exceeds 6 outer edge 0.5m of steel loop piece, identical as 8 lower edge of armpit angle to length vertically.Armpit angle 8 is arranged
Below waterproof layer 7.Horizontal waterproof layer 71 includes waterproof roll and water flange 12, and waterproof roll is close to be arranged in water flange
Between armpit angle, water flange 12 is close to be arranged below lowest level steel loop piece 6；Vertical waterproof layer 72 is waterproof roll, to steel
Pipe 9 and armpit angle 8 form sealing, prevent from seeping water.
In a specific embodiment of the present invention, it is equipped with rubber gasket 5 below steel pipe 9 and 6 seam crossing of steel loop piece, rubber is close
The setting of packing 5 further improves the percolation-proof effect of plugging structure.
In a specific embodiment of the present invention, concrete has been poured inside bottom plate 1, steel pipe 9 and armpit angle 8；Armpit angle 8 pours
Concrete strength level-one higher than the concrete strength that bottom plate 1 pours, the concrete strength at armpit angle 8 is the microdilatancy of C40 grade
Concrete, 1 concrete of bottom plate and concrete filled steel tube 10 are normal concrete, and 10 intensity of concrete filled steel tube is C30 grade, bottom plate
The concrete strength poured inside 1 is C35 grade.It is mainly using the concrete of high strongest compared to bottom plate 1 at armpit angle 8
Armpit angle 8 is main bearing member, considers that stress is concentrated, and concrete strength needs to improve level-one, in order to improve the flat of plugging structure
Whole property, bottom plate 1 further include the cement sand bed positioned at 2 top of top bars, and cement sand bed is with a thickness of 50mm, i.e., from steel plate 4
The top apart from the top of bottom plate 1 (i.e. at the top of cement sand bed) distance be that 50mm is smeared that is, after having poured concrete above
Par cement mortar is to form cement sand bed.
The part that steel pipe 9 is located inside dewatering well 11 is uniformly provided with through hole on tube wall, pours steel pipe in steel pipe 9
When concrete 10, concrete filled steel tube 10 is excessive by through hole, and steel pipe 9 and 11 well head of dewatering well are poured consolidation, 9 lower part of steel pipe
Area filling inside dewatering well 11 has clay ball.
The plugging structure installation steps for being used for 11 mouthfuls of subway station dewatering well in the present invention are as follows:
First according to the prefabricated plugging structure of diameter of dewatering well 11,9 outer diameter of steel pipe is, wall 30cm smaller than 11 diameter of dewatering well
Thick 8mm, 9 length of steel pipe are from top bars 2 to beyond 2 times of 1 bottom of bottom plate, 9 diameter of steel pipe.Steel loop piece 6 and 9 center pair of steel pipe
Welt is fully welded after neat, a ring is arranged every 0.5m, until being close to that a steel loop piece 6 is arranged below lower layer's reinforcing bar 3.It will production
Good structure is placed in dewatering well 11, keep 9 center of steel pipe be aligned with 11 center of dewatering well simultaneously sinking to projected depth.
Then 7 horizontal direction of waterproof layer is layed between bottom steel loop piece 6 and armpit angle 8；Vertically to be layed in steel pipe 9 with
Between armpit angle 8, horizontal direction with vertically to seam crossing encapsulation process.Then 8 concreting of armpit angle is carried out, to 8 concrete of armpit angle
Intensity carries out 1 formwork of bottom plate after reaching design requirement, and lower layer's reinforcing bar 3 is placed inside bottom plate 1, and bottom steel loop piece 6 is under
Layer 3 overlay segment of reinforcing bar is fully welded, and rubber gasket 5 is arranged in steel pipe 9 and 6 seam crossing of steel loop piece.
After the completion of 1 casting concrete of bottom plate to 9 upper port position of steel pipe, underground structure meets anti-floating requirement, experience
11 mouthfuls of 1 subway station dewatering well of bottom plate closure are carried out after receipts, casting concrete is to 9 bottom height of steel pipe in dewatering well 11.Then
Be laid with top bars 2 on the outside of 9 upper end of steel pipe, then by steel plate 4 be placed in top bars 2 and the top of steel pipe 9 and by steel plate 4 respectively with
Top bars 2 and 9 welt of steel pipe are fully welded.Finally to the capping processes for completing bottom plate 1 at top bars 2 and steel plate 4, sealing part is used
Cement mortar smoothes out, and shut-in well work finishes.
Plugging structure for subway station precipitation well head of the invention passes through steel plate, steel loop piece and upper and lower layer reinforcing bar
Welding, strong with floor structure globality, rigidity is remarkably reinforced, and improves whole bending resistance；The two sides between bottom plate and steel pipe
Armpit angle is arranged in lower part, enhances shearing resistance and the punch resistant capability of structure.After plugging dewatering well, load is transferred to by top steel plate
In, lower part steel loop piece, then be diffused into bottom plate and armpit angle, stress is effectively spread, and ensure that the stabilization of structure.Total
Multi layer waterproof structure is set from bottom to up, wherein first of waterproof construction, that is, waterproof layer waterproof ability is most strong, it is effective to improve
Impermeability after holes blocking.
In conclusion the plugging structure for subway station precipitation well head of the invention, plugging part can in-situ precast
Production and assembly, transport are stacked conveniently, are improved execution conditions, are saved construction period；And the rigidity of structure is big, overall performance is good,
The bearing capacity and seepage capability of structure after subway station precipitation well head blocks are improved, the crack for reducing new and old faying face is opened
Exhibition and destruction.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of plugging structure for subway station precipitation well head, the plugging structure includes the bottom above dewatering well
Plate, which is characterized in that the plugging structure further includes steel pipe, reinforcing bar, steel plate, steel loop piece and armpit angle；
The steel pipe is vertical inside dewatering well, and the steel pipe extends out out of described dewatering well and enters in the bottom plate
Portion；
The reinforcing bar includes the top bars for being set to the base plate interior upper layer, and lower layer's steel set on the base plate interior lower layer
Muscle, the top bars and lower layer's reinforcing bar are all set in the outside of the steel pipe；
The sheet-steel cover is connected to the upper end of the steel pipe and is located at the top of the top bars, the steel plate and the upper layer steel
Muscle is fixedly connected；
The steel loop piece is set on the steel pipe and seals between the steel pipe, and the steel loop piece is arranged in the bottom plate
Portion；
The armpit square ring around and be close to the steel pipe, be arranged below the bottom plate；
Concrete has been poured inside the bottom plate, the steel pipe and the armpit angle.
2. being used for the plugging structure of subway station precipitation well head as described in claim 1, which is characterized in that the steel loop piece has
Multiple, multiple steel loop pieces are evenly distributed on the steel pipe up and down；
Preferably, steel loop piece described in lowest level is close to the lower surface of lower layer's reinforcing bar；
More preferably, between steel loop piece described in any two between be divided into 0.5m.
3. being used for the plugging structure of subway station precipitation well head as claimed in claim 2, which is characterized in that the plugging structure
It further include waterproof layer, the waterproof layer includes horizontal waterproof layer and vertical waterproof layer, and the horizontal waterproof layer is spread in the horizontal direction
It is located between steel loop piece described in lowest level and the armpit angle, the vertical waterproof layer is laid on the steel pipe and institute along the vertical direction
It states between armpit angle, is sealed between the horizontal waterproof layer and the vertical waterproof layer.
4. being used for the plugging structure of subway station precipitation well head as claimed in claim 3, which is characterized in that the horizontal waterproof
Layer includes waterproof roll and water flange, and the waterproof roll is close to be arranged between the water flange and the armpit angle；Institute
The length of horizontal waterproof layer is stated beyond steel loop piece outer edge, the length of the vertical waterproof layer is identical as armpit angle lower edge.
5. the plugging structure according to any one of claims 1-4 for subway station precipitation well head, which is characterized in that described
Steel loop on piece is equipped with multiple through holes；
Preferably, steel loop piece surface is equipped with first rib, and the first rib protrudes from steel loop piece surface.
6. being used for the plugging structure of subway station precipitation well head as described in claim 1, which is characterized in that the surface of steel plate
Equipped with the second rib, second rib protrudes from the surface of steel plate；
Preferably, second rib protrudes from the surface of steel plate 5mm.
7. being used for the plugging structure of subway station precipitation well head as described in claim 1, which is characterized in that the armpit angle is in
Truncated cone-shaped.
8. being used for the plugging structure of subway station precipitation well head as described in claim 1, which is characterized in that the steel pipe and institute
Steel loop piece seam crossing is stated equipped with rubber gasket；
Preferably, the material of the steel pipe and/or the steel loop piece and/or the steel plate is Q235-B steel；
More preferably, the steel pipe is located at twice that bottom base plate length below is the diameter of steel tube.
9. being used for the plugging structure of subway station precipitation well head as described in claim 1, which is characterized in that the top bars
It include more reinforcing bars with lower layer's reinforcing bar, the more reinforcing bars are arranged in a crisscross manner to form intersection region, intersection region
Area is not less than the area of the steel plate.
10. being used for the plugging structure of subway station precipitation well head as described in claim 1, which is characterized in that in the armpit angle
The concrete strength in portion is higher than the concrete strength of the base plate interior；
Preferably, the concrete inside the armpit angle is slightly expanded concrete.
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| CN201910843731.5A CN110468862B (en) | 2019-09-06 | 2019-09-06 | Plugging structure for precipitation wellhead of subway station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114457828A (en) * | 2022-01-24 | 2022-05-10 | 北京城建设计发展集团股份有限公司 | Construction method of open cut fabricated underground structure foundation pit dewatering well |
| CN115222065A (en) * | 2022-06-20 | 2022-10-21 | 西南石油大学 | Wellhead pressure online multi-step prediction method based on Stacking ensemble learning |
| CN116623694A (en) * | 2023-06-27 | 2023-08-22 | 中冶建工集团(天津)建设工程有限公司 | Rubber air bag installation device and plugging method for deep foundation pit high-water-level iron pipe dewatering well |
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| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN207314370U (en) * | 2017-10-13 | 2018-05-04 | 中国新兴建筑工程总公司 | One kind sets basic drainage well extension tube structure |
| CN210658409U (en) * | 2019-09-06 | 2020-06-02 | 宁波市轨道交通集团有限公司建设分公司 | A block structure for subway station precipitation well head |
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| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN207314370U (en) * | 2017-10-13 | 2018-05-04 | 中国新兴建筑工程总公司 | One kind sets basic drainage well extension tube structure |
| CN210658409U (en) * | 2019-09-06 | 2020-06-02 | 宁波市轨道交通集团有限公司建设分公司 | A block structure for subway station precipitation well head |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457828A (en) * | 2022-01-24 | 2022-05-10 | 北京城建设计发展集团股份有限公司 | Construction method of open cut fabricated underground structure foundation pit dewatering well |
| CN114457828B (en) * | 2022-01-24 | 2024-02-23 | 北京城建设计发展集团股份有限公司 | Construction method for open cut assembled underground structure foundation pit dewatering well |
| CN115222065A (en) * | 2022-06-20 | 2022-10-21 | 西南石油大学 | Wellhead pressure online multi-step prediction method based on Stacking ensemble learning |
| CN116623694A (en) * | 2023-06-27 | 2023-08-22 | 中冶建工集团(天津)建设工程有限公司 | Rubber air bag installation device and plugging method for deep foundation pit high-water-level iron pipe dewatering well |
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|---|---|
| CN110468862B (en) | 2024-06-21 |
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