CN108166536A - A kind of anti-levitating device of hoistway formwork and its construction method - Google Patents

A kind of anti-levitating device of hoistway formwork and its construction method Download PDF

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Publication number
CN108166536A
CN108166536A CN201810045564.5A CN201810045564A CN108166536A CN 108166536 A CN108166536 A CN 108166536A CN 201810045564 A CN201810045564 A CN 201810045564A CN 108166536 A CN108166536 A CN 108166536A
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China
Prior art keywords
casting space
anchor pole
circulation pipe
bed die
mould
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Granted
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CN201810045564.5A
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CN108166536B (en
Inventor
黄建武
徐海东
叶蕾
叶建祥
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Wenzhou Zheng Kang Construction Co Ltd
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Wenzhou Zheng Kang Construction Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10Protective 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 soil pressure or hydraulic pressure
    • E02D31/12Protective 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 soil pressure or hydraulic pressure against upward hydraulic pressure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/04Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/045Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E02D29/05Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0023Cast, i.e. in situ or in a mold or other formwork

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention discloses a kind of anti-levitating device of hoistway formwork and its construction method, the bed course including being cast in bottom of foundation ditch, foundation pit side-wall is equipped with outboard template, and bottom layer of the reinforcing steel cage, top bars frame, case mould are equipped in foundation pit, and case mould includes bed die and side mould;Upper casting space is formed between side mould and outboard template, lower casting space is formed between bed die and bed course, upper casting space upper port is closed with sealing plate;It is equipped with connection anchor pole on bed die, bed course is nuzzled in connection anchor pole lower end in advance and connection anchor pole upper end is fastened with bed die;Circulation pipe in case mould is installed and circulation pipe lower end is connected to lower casting space, circulation pipe upper end is located above upper casting space;The conveying assembly for the concrete of lower casting space to be delivered to upper casting space upper end is equipped in circulation pipe, circulation pipe is provided with shutoff valve close to bed die side.This programme does not need to come using weight the floating of anti-case mould, so as to save work area so that subsequent work more can be carried out smoothly.

Description

A kind of anti-levitating device of hoistway formwork and its construction method
Technical field
The present invention relates to building fields, and in particular to a kind of anti-levitating device of hoistway formwork and its construction method.
Background technology
With gradually increasing for skyscraper, the application cheated in Large Concrete Base Plate, ultra-deep super large hole is increasingly Frequently.The difficulty of construction for cheating Zhong Keng positions is big, especially for concrete rigid waterproof is achieved the purpose that, usually requires that concrete body one Secondary property one-piece casting.
Traditional construction method is usually in the basement bottom board construction stage according to basement foundation ditch planar dimension size, height difference The box-shaped template of prefabricated whole back cover is set, as the inside formwork at the hole such as elevator, sump Zhong Keng positions, concrete from Case mould side pours trickling to hole bottom, and case mould top ballast to prevent the floating of concrete placings process raising middle flask mould, complete by concrete placings Form removal afterwards.But in place of this mode Shortcomings:Pressing mold weight occupies extensive work area, influences the reality of other processes It applies.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of hoistway formwork anti-levitating device, This programme does not need to come using weight the floating of anti-case mould, so as to save work area so that subsequent work can be more suitable The progress of profit.
To achieve the above object, the present invention provides following technical solutions:A kind of anti-levitating device of hoistway formwork, including The bed course of bottom of foundation ditch is cast in, a circle outboard template on the inner wall of foundation pit is installed, bottom layer of the reinforcing steel cage is equipped with above bed course, Top bars frame is installed on the inside of outboard template and top bars frame is connect with bottom layer of the reinforcing steel cage;Case mould, case are additionally provided in foundation pit Mould includes the bed die being supported on bottom layer of the reinforcing steel cage and the side mould being fixed on the upside of bed die, and side mould is located in top bars frame Side;It is characterized in that:Upper casting space is formed between the side mould and outboard template, sky is poured under being formed between bed die and bed course Between;It is equipped with connection anchor pole on bed die, bed course is nuzzled in connection anchor pole lower end in advance and connection anchor pole upper end is fastened with bed die;In case mould Circulation pipe is installed and circulation pipe lower end is connected to lower casting space, circulation pipe upper end is located above upper casting space;Circulation pipe The interior conveying assembly being equipped with for the concrete of lower casting space to be delivered to upper casting space upper end, circulation pipe are set close to bed die side It is equipped with shutoff valve;
Sealing plate is closed at the upper port of upper casting space, be provided on sealing plate for concrete is injected in upward casting space the One injected hole and the second injected hole being detachably connected with circulation pipe upper end, it is detachable in the first injected hole and the second injected hole It is connected with sealing-plug.
By using above-mentioned technical proposal, when a certain amount of concrete is injected in up casting space, positioned at lower casting space Interior concrete generates lifting force to bed die, while the gravity of concrete is fixed bed course and bed die by connecting anchor pole on bed course, So as to which the lower pulling force that a part of lifting force that bed die is subject to is made to be connected anchor pole is offset.
Circulation pipe provides the channel of a pressure release for the concrete in lower casting space simultaneously, while provides one by conveying assembly The concrete of circulation pipe lower end is recycled back to upper casting space upper end by partial power.I.e. during this note concrete, pass through conveying assembly Circulation conveying reduces the extruding force of the concrete in lower casting space, so as to reduce lifting force of the concrete to bed die.
After completing to note concrete, by sealing-plug plug to the first injected hole, the second injected hole, shutoff valve, sealing plate are closed Sealing function can be played to upper casting space, lower casting space so that the larger concrete of gravitional force is limited in upper casting space Gas pressure and be not easy to fall, to reduce extruding force of the larger concrete of gravitional force to the concrete in lower casting space.Thus During concrete solidifies this, lifting force of the concrete to bed die is reduced.
Lifting force of the concrete to bed die is reduced by above-mentioned three kinds of modes, originally carried out anti-case mould floating using weight to replace Mode, so as to save work area so that subsequent work more can be carried out smoothly.
The further setting of the present invention is:Screw arbor with nut at both-ends is equipped on the side mould and Screw arbor with nut at both-ends outer end and outer side mold Plate is connected.
By using above-mentioned technical proposal, Screw arbor with nut at both-ends can fasten outboard template and side mould, during concrete is noted, can subtract Small outboard template and side intermode away from become larger, to improve the quality after concrete molding.
The further setting of the present invention is:Several are provided on the sealing plate for stretching into the hole of vibrating of vibrating spear, and It vibrates and is removably connected with sealing-plug on hole.
By using above-mentioned technical proposal, during concrete is noted, vibrating spear can be used to carry out the concrete in upper casting space It vibrates, to improve the quality of concrete.
The further setting of the present invention is:The connection anchor pole upper end is equipped with that connection anchor pole is made to be fastened on bed die Fastener if fastener includes the fastening cylinder, the dry plate inner clamp piece that are provided with truncated cone-shaped through-hole, is provided on inner clamp piece for the company of being fitted in Connect the binding groove on anchor pole peripheral wall;When the smaller one end in the aperture of through-hole is packed into from connection anchor pole upper end on connection anchor pole, inner clip Piece can be imbedded in the gap between through-hole hole wall and connection anchor pole.
By using above-mentioned technical proposal, when installing fastener, first fastening jacket casing is led to outside connection anchor pole and at this time The larger one end in aperture in hole is upper, then inner clamp piece is imbedded through-hole hole wall and is connected in gap between anchor pole, inner clamp piece outer wall It is fitted on the hole wall of through-hole and the cell wall of binding groove is fitted on connection anchor pole peripheral wall.In this process, fastening is being played While anchor pole is connected with bed die, it has been also convenient for subsequently to the dismounting of fastener.
The further setting of the present invention is:The fastener further includes gasket ring and gasket ring is used to be mounted on fastening cylinder and bed die Between.
By using above-mentioned technical proposal, it is possible to increase the contact area between connection anchor pole and bed die, so as to make connection anchor The pulling force that bar is acted on bed die more disperses, and reduces the impaired probability of bed die.
The further setting of the present invention is:Be equipped between the circulation pipe and bed die annular and for increase circulation pipe with The backing plate of bed die forced area.
By using above-mentioned technical proposal, by setting backing plate that can increase the contact area between circulation pipe and bed die, from And the active force that circulation pipe is made to act on bed die more disperses, and reduces the impaired probability of bed die.
The further setting of the present invention is:Fixing sleeve is equipped with positioning plate on the peripheral wall of the connection anchor pole and positioning plate is pre-buried On the downside of bed course or in bed course.
By using above-mentioned technical proposal, positioning plate can increase the contact area between connection anchor pole and bed course, so as to make It connects pulling force of the bolt action on bed course more to disperse, reduces the impaired probability of bed course.
It is a further object to provide a kind of hoistway formworks to resist upper floating construction method, and the method use above-mentioned The anti-levitating device of hoistway formwork, can save work area, facilitate the progress of follow-up work, specifically comprise the following steps:
Step 1:The foundation pit of elevator is excavated, and is constructed to bottom of foundation ditch
A is preset with connection anchor pole vertically in bottom of foundation ditch;
B clears up bottom of foundation ditch and is poured in bottom of foundation ditch and set bed course;Connection anchor pole upper end is pierced by bed course;
Step 2:The processing of foundation pit side-wall
A carries out setting-out in bottom of foundation ditch, and carries out the installation of outboard template in foundation pit side-wall according to setting-out instruction;
B, bottom layer of the reinforcing steel cage is laid in bottom of foundation ditch, and top bars frame is set up, and by top bars frame and bottom in foundation pit side Steel reinforcement cage carries out bind or welding;Connection anchor pole upper end is pierced by bottom layer of the reinforcing steel cage;
Step 3:The installation of each component in case mould
Case mould is placed on the upside of bottom layer of the reinforcing steel cage by a according to setting-out instruction, and connect anchor pole upper end pierce into case mould inside and with Case mould fastens;
B installs conveying assembly and shutoff valve in circulation pipe, then in circulation pipe installation inlet mould, connects circulation pipe lower end Lower casting space is passed to, and supreme casting space upper end is installed in the upper end of circulation pipe;
C, the outer end that Screw arbor with nut at both-ends and Screw arbor with nut at both-ends are worn on case mould inner wall are connect with outboard template;Set up in case mould the lumps of wood with And steel pipe;
Step 4:It pours
A, upward casting space inject concrete, while under the action of conveying assembly that the concrete in lower casting space is defeated by circulation pipe Send in supreme casting space, until upper casting space and lower casting space poured it is full, by sealing-plug plug to the first injected hole, the In two injected holes, shutoff valve is closed.
The present invention has the following advantages:
1st, bed course and bed die are fixed by connecting anchor pole, so as to which a part of lifting force for being subject to bed die is connected under anchor pole Pulling force is offset, then does not need to come using weight the floating of anti-case mould, so as to save work area so that subsequent work can be more Smoothly to carry out;
2nd, the setting of circulation pipe can provide the channel of a pressure release for the concrete under bed die, and during concrete is noted, conveying assembly Concrete in circulation pipe can be transmitted back in upper casting space, to reduce the extruding force of the concrete between bed die and bed course, so as to reduce Concrete is to the lifting force of bed die;
3rd, sealing plate can play sealing function to upper casting space, lower casting space, during concrete solidifies this, reduce concrete pair The lifting force of bed die.
Description of the drawings
Fig. 1 is the present embodiment structure diagram;
Exploded perspective views of the Fig. 2 for each component on the bed die in Fig. 1;
Fig. 3 is the vertical view of the sealing plate in Fig. 1.
Reference numeral:1st, bed course;11st, outboard template;111st, Screw arbor with nut at both-ends;12nd, bottom layer of the reinforcing steel cage;13rd, top bars frame; 2nd, anchor pole is connected;21st, positioning plate;3rd, case mould;31st, bed die;311st, circulation port;32nd, side mould;4th, fastener;41st, gasket ring;42、 Fasten cylinder;421st, through-hole;43rd, inner clamp piece;431st, binding groove;5th, sealing plate;51st, the first injected hole;52nd, the second injected hole;53、 It vibrates hole;6th, circulation pipe;61st, backing plate;62nd, shutoff valve;63rd, conveying assembly;631st, feeder motor;632nd, conveying auger;7、 Steel pipe;71st, the lumps of wood;8th, upper casting space;81st, lower casting space.
Specific embodiment
With reference to attached drawing, the present invention will be further described.
Embodiment one:A kind of anti-levitating device of hoistway formwork, with reference to figure 1, the bed course 1 including being cast in bottom of foundation ditch, One circle outboard template 11 is installed, 1 top of bed course is equipped with bottom layer of the reinforcing steel cage 12, and 11 inside of outboard template is pacified on the inner wall of foundation pit Equipped with top bars frame 13 and top bars frame 13 and 12 bind of bottom layer of the reinforcing steel cage.Case mould 3 is additionally provided in foundation pit, case mould 3 includes The bed die 31 being supported on bottom layer of the reinforcing steel cage 12 and the side mould 32 being fixed on the upside of bed die 31, side mould 32 are located at top bars 13 inside of frame.
With reference to figure 1, upper casting space 8 is formed between side mould 32 and outboard template 11, is formed between bed die 31 and bed course 1 Lower casting space 81.It is equipped with connection anchor pole 2 on bed die 31, connection anchor pole 2 lower end is nuzzled bed course 1 and 2 upper end of connection anchor pole in advance Fastener 4 is installed, fastener 4 is used to that connection anchor pole 2 to be made to fasten with bed die 31.Fixing sleeve on the peripheral wall of anchor pole 2 is connected to be equipped with Positioning plate 21, and positioning plate 21 is embedded in 1 downside of bed course or bed course 1.
With reference to figure 2, fastener 4 includes the fastening cylinder 42, two panels inner clamp piece 43, gasket ring 41 that are provided with truncated cone-shaped through-hole 421, interior The binding groove 431 for being fitted on connection 2 peripheral wall of anchor pole is provided on intermediate plate 43.First gasket ring 41 can be packed on connection anchor pole 2 It holds and is finally supported on bed die 31, then fastening cylinder 42 is packed into from 2 upper end of connection anchor pole on connection anchor pole 2 and is supported on gasket ring On 41, and the larger one end in 421 aperture of through-hole is upward, and inner clamp piece 43 is from top to bottom then imbedded 421 hole wall of through-hole with connecting anchor In gap between bar 2,43 outer wall of inner clamp piece is bonded with 421 hole wall of through-hole at this time, and the cell wall of binding groove 431 is with connecting anchor pole 2 Peripheral wall fitting.
With reference to figure 1 and Fig. 2, circulation pipe 6 is installed in case mould 3, circulation port 311 is provided on bed die 31,6 lower end of circulation pipe is used It is connected in circulation port 311, the backing plate 61 of annular, backing plate 61 and circulation pipe is installed between 6 lower end of circulation pipe and circulation port 311 6 are bolted.6 upper end of circulation pipe, which is bent downwardly, to be set and positioned at upper 8 top of casting space.It is equipped with and is used in circulation pipe 6 The concrete of lower casting space 81 is delivered to the conveying assembly 63 of upper 8 upper end of casting space, conveying assembly 63 includes feeder motor 631 And the conveying auger 632 being connected with feeder motor 631.Circulation pipe 6 is provided with shutoff valve 62 close to 31 one end of bed die, cut-off Valve 62 is slide valve.
With reference to figure 1, Screw arbor with nut at both-ends 111, and the outer end of Screw arbor with nut at both-ends 111 and outboard template 11 are worn on 3 inner wall of case mould Connection.Set up the lumps of wood 71 and steel pipe 7 in case mould 3, the lumps of wood 71 for reducing case mould 3 deformation and steel pipe 7 for limiting the lumps of wood 71。
With reference to figure 1, the sealing plate 5 of rectangular-ambulatory-plane is closed at the upper port of upper casting space 8(With reference to figure 3), and with building It carries out filling up sealing with gap of the sponge strip between each piece of template.It is provided with to inject in upward casting space 8 on sealing plate 5 First injected hole 51 of concrete, the second injected hole 52 that can be detachably connected with 6 upper end of circulation pipe, the first injected hole 51 and the second note Slurry is removably connected with sealing-plug in hole 52.The removable circulation pipe 6 when upper casting space 8 and lower casting space 81 fill concrete Upper end, and by sealing-plug plug to the first injected hole 51 and the second injected hole 52.
With reference to figure 3, several are provided on sealing plate 5 for stretching into the hole 53 of vibrating of vibrating spear, and removable on hole 53 of vibrating It unloads and is connected with sealing-plug.
Embodiment two:A kind of hoistway formwork resists floating construction method, and the hoistway formwork included in embodiment one resists Levitating device includes the following steps:
Step 1:The foundation pit of elevator is excavated, and is constructed to bottom of foundation ditch
A is preset with connection anchor pole 2 vertically in bottom of foundation ditch;
B clears up bottom of foundation ditch and is poured in bottom of foundation ditch and set bed course 1;2 upper end of connection anchor pole is pierced by bed course 1, and positioning plate 21 is located at pad Under layer 1;
Step 2:The processing of foundation pit side-wall
A carries out setting-out in bottom of foundation ditch, and carries out the installation of outboard template 11 in foundation pit side-wall according to setting-out instruction;
B is laid with bottom layer of the reinforcing steel cage 12 in bottom of foundation ditch, sets up top bars frame 13 in foundation pit side, and by top bars frame 13 Bind or welding are carried out with bottom layer of the reinforcing steel cage 12;2 upper end of connection anchor pole is pierced by bottom layer of the reinforcing steel cage 12;
Step 3:The installation of each component in case mould 3
Case mould 3 is placed in 12 upside of bottom layer of the reinforcing steel cage, and connect 2 upper end of anchor pole and pierce into the interior of case mould 3 by a according to setting-out instruction Portion and passing through fastener 4 makes connection anchor pole 2 be fastened with case mould 3;Reuse the upper port of the upper casting space 8 of the closing of sealing plate 5;
B, installation conveying assembly 63 and shutoff valve 62 in circulation pipe 6, then circulation pipe 6 is installed in inlet mould 3, make circulation pipe 6 lower ends are connected to lower casting space 81, and the upper end of circulation pipe 6 is installed to the second injected hole 52 on sealing plate 5;Conveying Concrete in lower casting space 81 can be delivered to by circulation pipe 6 in upper casting space 8 by component 63, to play to lower casting space 81 concrete plays the role of pressure release;
C, the outer end that Screw arbor with nut at both-ends 111 and Screw arbor with nut at both-ends 111 are worn on 3 inner wall of case mould are connect with outboard template 11;In case mould 3 Set up the lumps of wood 71 and steel pipe 7;
Step 4:It pours
A, upward casting space 8 inject concrete, at the same under the action of conveying assembly 63 by the concrete in lower casting space 81 by following Endless tube 6 is delivered in casting space 8, until upper casting space 8 and lower casting space 81 poured it is full, by sealing-plug plug to the In one injected hole 51, the second injected hole 52, shutoff valve 62 is closed, and the concrete in circulation pipe 6 is exported to the external world.
Implementation principle:In up casting space 8 during injection concrete, the concrete in lower casting space 81 generates bed die 31 Lifting force, while the gravity of concrete is fixed bed course 1 and bed die 31 by connecting anchor pole 2, on bed course 1 so as to make bed die The lower pulling force that the 31 a part of lifting force being subject to are connected anchor pole 2 is offset.
Circulation pipe 6 provides the channel of a pressure release for the concrete in lower casting space 81 simultaneously, while by conveying auger 632 A part of power is provided, the concrete of 6 lower end of circulation pipe is recycled back to upper 8 upper end of casting space.I.e. during this note concrete, by defeated The circulation conveying of sending component 63 reduces the extruding force of the concrete in lower casting space 81, so as to reduce lifting force of the concrete to bed die 31.
It after completing to note concrete, by sealing-plug plug to the first injected hole 51, the second injected hole 52, vibrates in hole 53, closes and cut Only valve 62, sealing plate 5 can play sealing function to upper casting space 8, lower casting space 81 so that weight in upper casting space 8 The larger concrete of power potential energy is limited to gas pressure and is not easy to fall, to reduce the larger concrete of gravitional force to lower casting space 81 The extruding force of interior concrete.So as to during concrete solidifies this, reduce lifting force of the concrete to bed die 31.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (8)

1. a kind of anti-levitating device of hoistway formwork, the bed course including being cast in bottom of foundation ditch(1), it is equipped on the inner wall of foundation pit One circle outboard template(11), bed course(1)Top is equipped with bottom layer of the reinforcing steel cage(12), outboard template(11)Inside is equipped with upper strata steel Ledges(13)And top bars frame(13)With bottom layer of the reinforcing steel cage(12)Connection;Case mould is additionally provided in foundation pit(3), case mould(3)Including It is supported on bottom layer of the reinforcing steel cage(12)On bed die(31)Be fixed on bed die(31)The side mould of upside(32), side mould(32)Position In top bars frame(13)Inside;It is characterized in that:The side mould(32)With outboard template(11)Between form upper casting space (8), bed die(31)With bed course(1)Between form lower casting space(81);Bed die(31)On be equipped with connection anchor pole(2), connection Anchor pole(2)Lower end is nuzzled bed course in advance(1)And connection anchor pole(2)Upper end and bed die(31)Fastening;Case mould(3)Circulation pipe is inside installed (6)And circulation pipe(6)Lower end is connected to lower casting space(81), circulation pipe(6)Upper end is located at upper casting space(8)Top;It follows Endless tube(6)Interior be equipped with is used for lower casting space(81)Concrete be delivered to casting space(8)The conveying assembly of upper end(63), follow Endless tube(6)Close to bed die(31)Side is provided with shutoff valve(62);
Upper casting space(8)Upper port at be closed with sealing plate(5), sealing plate(5)On be provided with for upward casting space(8) First injected hole of interior injection concrete(51)With with circulation pipe(6)The second injected hole that upper end is detachably connected(52), the first slip casting Hole(51)With the second injected hole(52)Inside it is removably connected with sealing-plug.
2. the anti-levitating device of a kind of hoistway formwork according to claim 1, it is characterized in that:The side mould(32)On wear Equipped with Screw arbor with nut at both-ends(111)And Screw arbor with nut at both-ends(111)Outer end and outboard template(11)It is connected.
3. the anti-levitating device of a kind of hoistway formwork according to claim 1, it is characterized in that:The sealing plate(5)On open There are several for stretching into the hole of vibrating of vibrating spear(53), and hole of vibrating(53)On be removably connected with sealing-plug.
4. the anti-levitating device of a kind of hoistway formwork according to claim 1, it is characterized in that:The connection anchor pole(2)On End is equipped with to make connection anchor pole(2)It is fastened on bed die(31)On fastener(4), fastener(4)Lead to including being provided with truncated cone-shaped Hole(421)Fastening cylinder(42)If, dry plate inner clamp piece(43), inner clamp piece(43)On be provided with to be fitted in connection anchor pole(2)Week Binding groove on wall(431);Work as through-hole(421)The smaller one end in aperture from connection anchor pole(2)Upper end packs into connection anchor pole(2)On When, inner clamp piece(43)Through-hole can be imbedded(421)Hole wall is with connecting anchor pole(2)Between gap in.
5. the anti-levitating device of a kind of hoistway formwork according to claim 4, it is characterized in that:The fastener(4)Also wrap Include gasket ring(41)And gasket ring(41)For being mounted on fastening cylinder(42)With bed die(31)Between.
6. the anti-levitating device of a kind of hoistway formwork according to claim 1, it is characterized in that:The circulation pipe(6)The bottom of with Mould(31)Between annular is installed and for increasing circulation pipe(6)With bed die(31)The backing plate of forced area(61).
7. the anti-levitating device of a kind of hoistway formwork according to claim 1, it is characterized in that:The connection anchor pole(2)'s Fixing sleeve is equipped with positioning plate on peripheral wall(21)And positioning plate(21)It is embedded in bed course(1)Downside or bed course(1)It is interior.
8. a kind of construction method of the anti-levitating device of hoistway formwork comprising described in claim 1-7 any one, feature Include the following steps:
Step 1:The foundation pit of elevator is excavated, and is constructed to bottom of foundation ditch
A is preset with connection anchor pole vertically in bottom of foundation ditch(2);
B clears up bottom of foundation ditch and is poured in bottom of foundation ditch and set bed course(1);Connect anchor pole(2)Upper end is pierced by bed course(1);
Step 2:The processing of foundation pit side-wall
A carries out setting-out, and carry out outboard template in foundation pit side-wall according to setting-out instruction in bottom of foundation ditch(11)Installation;
B is laid with bottom layer of the reinforcing steel cage in bottom of foundation ditch(12), top bars frame is set up in foundation pit side(13), and by top bars Frame(13)With bottom layer of the reinforcing steel cage(12)Carry out bind or welding;Connect anchor pole(2)Upper end is pierced by bottom layer of the reinforcing steel cage(12);
Step 3:Case mould(3)The installation of interior each component
A is indicated according to setting-out by case mould(3)It is placed in bottom layer of the reinforcing steel cage(12)Upside, and connect anchor pole(2)Case mould is pierced into upper end (3)Inside and with case mould(3)Fastening;Reuse sealing plate(5)Casting space in closing(8)Upper port;
B, in circulation pipe(6)Interior installation conveying assembly(63)And shutoff valve(62), then circulation pipe(6)Inlet mould is installed(3) It is interior, make circulation pipe(6)Lower end is connected to lower casting space(81), and circulation pipe(6)Upper end supreme casting space is installed(8) Upper end;
C, in case mould(3)Screw arbor with nut at both-ends is worn on inner wall(111)And Screw arbor with nut at both-ends(111)Outer end and outboard template(11)Even It connects;Case mould(3)The interior erection lumps of wood(71)And steel pipe(7);
Step 4:It pours
A, upward casting space(8)Concrete is injected, while in conveying assembly(63)Under the action of by lower casting space(81)Interior concrete Pass through circulation pipe(6)It is delivered to casting space(8)It is interior, until upper casting space(8)With lower casting space(81)It is poured completely, By sealing-plug plug to the first injected hole(51), the second injected hole(52)It is interior, close shutoff valve(62).
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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN110821163A (en) * 2019-11-26 2020-02-21 中国十七冶集团有限公司 Construction method for preventing upward floating of elevator shaft hoisting formwork
CN112627191A (en) * 2020-12-16 2021-04-09 上海市基础工程集团有限公司 Foundation pit support modular rapid construction template device and method
CN113404057A (en) * 2021-07-16 2021-09-17 江苏通力建设集团有限公司 Integral pouring structure and construction method for foundation pit side wall cushion layer of elevator shaft
CN115094936A (en) * 2022-07-13 2022-09-23 中建一局集团第一建筑有限公司 Anti-floating reinforcing device for elevator shaft and water collecting shaft hoisting die and construction method

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CN204266590U (en) * 2014-11-19 2015-04-15 大同泰瑞集团建设有限公司 Sump, hoistway formwork bed die anti-floating system
CN206030177U (en) * 2016-08-31 2017-03-22 邢台市政建设集团股份有限公司 Precast box girder prevents centre form come -up structure
CN206681359U (en) * 2017-04-19 2017-11-28 中天建设集团有限公司 One kind cheats new formwork system in hole

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CN101538894A (en) * 2009-03-20 2009-09-23 湖南省沙坪建筑有限公司 Construction method for resisting uplift in internal mold of concrete box
CN204266590U (en) * 2014-11-19 2015-04-15 大同泰瑞集团建设有限公司 Sump, hoistway formwork bed die anti-floating system
CN206030177U (en) * 2016-08-31 2017-03-22 邢台市政建设集团股份有限公司 Precast box girder prevents centre form come -up structure
CN206681359U (en) * 2017-04-19 2017-11-28 中天建设集团有限公司 One kind cheats new formwork system in hole

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Publication number Priority date Publication date Assignee Title
CN110821163A (en) * 2019-11-26 2020-02-21 中国十七冶集团有限公司 Construction method for preventing upward floating of elevator shaft hoisting formwork
CN112627191A (en) * 2020-12-16 2021-04-09 上海市基础工程集团有限公司 Foundation pit support modular rapid construction template device and method
CN113404057A (en) * 2021-07-16 2021-09-17 江苏通力建设集团有限公司 Integral pouring structure and construction method for foundation pit side wall cushion layer of elevator shaft
CN115094936A (en) * 2022-07-13 2022-09-23 中建一局集团第一建筑有限公司 Anti-floating reinforcing device for elevator shaft and water collecting shaft hoisting die and construction method

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