CN208167956U - A kind of basement inwall using reverse construction - Google Patents
A kind of basement inwall using reverse construction Download PDFInfo
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- CN208167956U CN208167956U CN201820586231.9U CN201820586231U CN208167956U CN 208167956 U CN208167956 U CN 208167956U CN 201820586231 U CN201820586231 U CN 201820586231U CN 208167956 U CN208167956 U CN 208167956U
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- 238000010276 construction Methods 0.000 title claims abstract description 87
- 239000004567 concrete Substances 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000009415 formwork Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 10
- 238000009416 shuttering Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 21
- 238000005266 casting Methods 0.000 abstract description 11
- 230000008595 infiltration Effects 0.000 abstract description 8
- 238000001764 infiltration Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 16
- 230000002411 adverse Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000012237 artificial material Substances 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
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Abstract
The utility model belongs to basement inwall field, in particular to a kind of basement inwall using reverse construction, it is described to be arranged on the inner wall of diaphram wall using the basement inwall of reverse construction, the diaphram wall inner wall and floor are connected with each other by boss, the boss above the floor is denoted as convex platform, the boss below the floor is denoted as lower convex platform, and the inwall is between the convex platform and the lower convex platform.The utility model provides one kind and passes through pouring hole, pours mouth, ensure that concrete casting is closely knit at construction joint, is easy to make, easy to operate, with strong points, efficiently solves and generates infiltration at basement top-down method inwall construction joint；Not only reduce the generation poured and smash rear liner wall crack and voids and pits, but also significantly improved new-old concrete seam crossing quality, and reduce the troublesome basement inwall using reverse construction of later period repairing.
Description
Technical field
The utility model belongs to basement inwall field, in particular to a kind of underground chamber liner using reverse construction
Wall.
Background technique
Architectural engineering is to make full use of the underground space, is intended to develop multi-storey basement, the depth and scale of basement are got over
Come bigger.Deep foundation pit engineering in urban is more and more to use reverse construction, and diaphram wall becomes the master of contrary sequence method pattern foundation pit supporting structure
Method is wanted, and diaphram wall doubles as outer wall of basement, while inwall is arranged in diaphram wall inner wall, inwall is using suitable
Practice construction；Due to going along with sb. to guard him the stress performance of lined well-formed, foundation pit surrounding environment can be controlled and reduced well
Surface subsidence and horizontal displacement have good effect simultaneously for the construction period is reduced.
When architectural engineering basement top-down method is constructed, diaphram wall earth-retaining of first constructing intercepts water antiseepage, is layered from top to bottom
Excavation construction underground structure floor, until basement bottom board, is allowed to form the biggish support receiving soil pressure of rigidity and water pressure.
Basement inwall is after floor, floor structure construction along progress vertical structure construction is made, since diaphram wall holds
Easily there is bulge, surface relief is uneven, and liner wall thickness is not easy to control, and inwall formwork erection scheme is unreasonable, is easy to appear
Inwall surface crack；Due to it is difficult to ensure that inwall and upper and lower level floor connector effective connection, concreting is not in place,
Construction joint concrete leakiness causes construction joint to occur seeping water and leak；Due to the building for thering is adverse construction method to complete at the top of inwall
Diploe hinders, concrete can not direct blanking, concrete is difficult to vibration compacting, in addition concrete shrinkage, concrete hole at construction joint
Gap is more, it is difficult to guarantee construction quality.
Therefore, these problems are based on, one kind is provided and passes through pouring hole, pour mouth, ensure that concrete casting at construction joint
It is closely knit, it is easy to make, it is easy to operate, it is with strong points, it efficiently solves and generates infiltration at basement top-down method inwall construction joint；
Not only the generation poured and smash rear liner wall crack and voids and pits had been reduced, but also has significantly improved new-old concrete seam crossing quality, subtracted
Having lacked the troublesome of later period repairing has important realistic meaning using the basement inwall of reverse construction.
Utility model content
The utility model is to solve technical problem present in well-known technique and provide one kind and pass through pouring hole, pour mouth,
It ensure that concrete casting is closely knit at construction joint, is easy to make, it is easy to operate, it is with strong points, efficiently solve the inverse work of basement
Infiltration is generated at method inwall construction joint；Not only the generation poured and smash rear liner wall crack and voids and pits had been reduced, but also had significantly improved
New-old concrete seam crossing quality reduces the troublesome basement inwall using reverse construction of later period repairing.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique：
A kind of basement inwall using reverse construction, it is described to be set using the basement inwall of reverse construction
It sets on the inner wall of diaphram wall, the diaphram wall inner wall and floor are connected with each other by boss, are located at the floor
The boss of top is denoted as convex platform, and the boss below the floor is denoted as lower convex platform, and the inwall is located at
Between the convex platform and the lower convex platform, steel plate for sealing water is embedded at the construction joint between the boss and the inwall.
The utility model can also use following technical scheme：
In the above-mentioned basement inwall using reverse construction, further, the diaphram wall inner wall peace
Equipped with sealing up screw.
In the above-mentioned basement inwall using reverse construction, further, one end of the sealing up screw is
Light justifies screw rod, and the centre of the light circle screw rod is fully welded seal ring, and the end of the sealing up screw is equipped with and the diaphram wall
The bending welding section of reinforcement welding, the other end of the sealing up screw are the thread screw with nut.
In the above-mentioned basement inwall using reverse construction, further, in the construction process, the floor
Be embedded with pouring hole in the side close to the inwall, be equipped with dump skip right above the pouring hole, the pouring hole just under
Side is equipped with and pours mouth, the top for pouring mouth and inwall form bracing system being arranged in, the convex platform and it is described under it is convex
The inwall form bracing system is equipped between platform, by the mouth that pours to the inwall form bracing system, described
Space between convex platform, the lower convex platform and the diaphram wall carries out pouring to form the inwall.
In the above-mentioned basement inwall using reverse construction, further, in the construction process, the sealing
The other end of screw rod positions the liner wall thickness by the nut, and the inwall passes through the liner wall form
Support system carries out single surface formwork reinforcing.
In the above-mentioned basement inwall using reverse construction, further, the pouring hole is described pours
Hole is PVC casing, the mouth that vibrates for pouring mouth and also serving as concrete.
The utility model has the advantages and positive effects of：
1, the utility model ensure that concrete casting is closely knit at construction joint, has by being equipped with pouring hole and pouring mouth
It is easy to make, advantage easy to operate, with strong points, efficiently solves and generate infiltration at basement top-down method inwall construction joint
The problem of；Meanwhile the utility model had not only reduced the generation poured and smash rear liner wall crack and voids and pits, but also significantly improved new
Old concrete seam crossing quality reduces the trouble of later period repairing；Meanwhile inwall can organically combine shape with diaphram wall
Integrally, it can be considered the extension of diaphram wall thickness to a certain extent, antiseepage, shearing resistance can be played the role of.This is practical new
Type is conducive to inwall formwork erection, and the perfect construction method of inwall form bracing system becomes inwall shuttering supporting
Simply, it is practical, firm；The constructing operation poured and smash is facilitated, inwall is improved and pours the speed of application smash.
2, the utility model diaphram wall inner wall and floor are connected with each other by boss, are conducive to liner wall form branch
If being conducive to control concrete shrinkage；Further, the new and old coagulation of construction joint between convex platform, lower convex platform and inwall
It is embedded with steel plate for sealing water at Soil Interface, avoids construction joint seepage defect, is conducive to basement entirety water-impervious, thus, it overcomes
Large area at infiltration and leak and construction joint is generated at existing contrary sequence method inwall construction joint cuts lacking for structural concrete
It falls into.
3, the utility model diaphram wall inner wall is equipped with sealing up screw, one end of sealing up screw and diaphram wall steel
Muscle welding, the other end are reinforced for inwall single surface formwork, solve inwall bracing reinforcement loosely, or more in the presence of supporting
Phenomenon；Further, the perfect construction method of inwall form bracing system makes inwall shuttering supporting become simple, real
With, it is firm；Meanwhile saving support and pacifying and tearing open, artificial material expense is saved, effect is improved.
4, the utility model casting and compacting of concrete is that concrete through pump line is transported to dump skip, by pouring hole, pour mouth to
Inwall carries out blanking；Floor is embedded with pouring hole in the side close to inwall when adverse construction method, facilitates the construction poured and smash
Operation, enabling concrete, directly from basement upper layer, floor is transported to lower layer's inwall, directly starts to pour while conveying
Operation is smash, inwall is substantially increased and pours the speed of application smash, avoids floor where concrete is first transported down to inwall,
The shortcomings that smashing is poured to mouth is poured by manual elevation again；Meanwhile pouring a mouthful end and being higher by construction joint, when concreting, pours in mouth
Volume of concrete be greater than pour mouthful bottom to the volume of concrete between lower convex platform, connect using the close concrete of concrete pressure differential pressure
Seam, the concrete be conducive between steel plate for sealing water and lower convex platform combine.
Detailed description of the invention
The technical solution of the utility model is described in further detail below with reference to drawings and examples, still
It should be known that these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the utility model.In addition,
Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale
It draws.
Fig. 1 is structural schematic diagram of the utility model in adverse construction method；
Fig. 2 is structural schematic diagram of the utility model when along constructing；
Fig. 3 is the sealing up screw structural schematic diagram of the utility model.
In figure：
1, diaphram wall, 2, inwall, 3, floor, 4, convex platform, 5, lower convex platform, 6, steel plate for sealing water, 7, sealing up screw,
7-1, light circle screw rod, 7-2, seal ring, 7-3, nut, 7-4, thread segment, 8, dump skip, 9, pouring hole, 10, pour mouth, in 11
Chemise form bracing system.
Specific embodiment
Firstly, it is necessary to which explanation, illustrates applying using contrary sequence method for the utility model for by way of example below
Specific structure, features and advantages of basement inwall of work etc., however what all descriptions were intended merely to be illustrated, without
It is to be understood as forming any restrictions to the utility model.In addition, being described by each embodiment mentioned by this paper or hidden
Any single technical characteristic contained, or shown or implicit any single technical characteristic in the drawings, still can be at this
Continue any combination between a little technical characteristics (or its equivalent) or delete, so that obtain not to mention directly herein
And the utility model more other embodiments.In addition, same or like technical characteristic exists for the sake of simplifying drawing
It may only be indicated at one in same attached drawing.
It will be understood that when component ' attach ' to another component when it is said that, it can be directly connected to another component or
There may be intermediate members.On the contrary, when component " being directly connected to " being arrived another component when it is said that, then it represents that middle part is not present
Part.
Fig. 1 gives structural schematic diagram of the utility model in adverse construction method, and it is practical new by Fig. 2 to give this
Structural schematic diagram of type when along constructing, and the sealing up screw structural schematic diagram of the utility model is given by Fig. 3, under
Face just illustrates the utility model in conjunction with Fig. 1 to Fig. 3.
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
It is described in detail with the accompanying drawings as follows：
A kind of basement inwall 2 using reverse construction, 2 quilt of basement inwall using reverse construction
It is arranged on the inner wall of diaphram wall 1,1 inner wall of diaphram wall and floor 3 are connected with each other by boss, are located at described
The boss of 3 top of floor is denoted as convex platform 4, and the boss positioned at 3 lower section of floor is denoted as lower convex platform 5, described interior
Chemise 2 is pre-buried at the construction joint between the boss and the inwall 2 between the convex platform 4 and the lower convex platform 5
There is steel plate for sealing water 6.
1 inner wall of the utility model diaphram wall and floor 3 are connected with each other by boss, are conducive to 2 template branch of inwall
If being conducive to control concrete shrinkage；Further, the construction joint between convex platform 4, lower convex platform 5 and inwall 2 is new and old mixed
It is embedded with steel plate for sealing water 6 at solidifying Soil Interface, construction joint seepage defect is avoided, is conducive to basement entirety water-impervious, thus, overcome
Large area at infiltration and leak and construction joint is generated at existing 2 construction joint of contrary sequence method inwall cuts structural concrete
Defect.
For further, it can also consider in the present invention, 1 inner wall of diaphram wall is equipped with sealing spiral shell
Bar 7.
It should be pointed out that one end of the sealing up screw 7 is light circle screw rod 7-1, the centre of the light circle screw rod 7-1 is full
Seal ring 7-2 is welded, the end of the sealing up screw 7 is equipped with the bending welding section with 1 reinforcement welding of diaphram wall, described
The other end of sealing up screw 7 is the thread screw with nut 7-3, wherein the position such as explanation of thread segment 7-4 in thread screw
Shown in book attached drawing 3.
One end of the utility model sealing up screw 7 and 1 reinforcement welding of diaphram wall, the other end are used for 2 single side of inwall
Formwork is reinforced, and solves 2 bracing reinforcement of inwall loosely, or is existed and supported more phenomenon；Further, perfect inwall
The construction method of form bracing system 11 makes 2 shuttering supporting of inwall become simple, practical, firm；Meanwhile save support and
Peace is torn open, and artificial material expense is saved, and improves effect.
For further, it can also consider in the present invention, in the construction process, the floor 3 is close to institute
The side for stating inwall 2 is embedded with pouring hole 9, and dump skip 8 is equipped with right above the pouring hole 9, is pacified immediately below the pouring hole 9
Equipped with pouring mouth 10, the top for pouring mouth 10 and inwall form bracing system 11 being set, the convex platform 4 and it is described under
It is equipped with the inwall form bracing system 11 between boss 5, pours 10 pairs of the mouth inwall shuttering supporting bodies by described
It is that space between the 11, convex platform 4, the lower convex platform 5 and the diaphram wall 1 carries out pouring to form the inwall
2。
It should be pointed out that in the construction process, the other end of the sealing up screw 7 is by the nut 7-3 to described
2 thickness of inwall is positioned, and the inwall 2 carries out single surface formwork reinforcing by the inwall form bracing system 11.
It should be pointed out that the pouring hole 9 is PVC casing, the mouth that vibrates for pouring mouth 10 and also serving as concrete.
The utility model casting and compacting of concrete is transported to dump skip 8 through pump line for concrete, by pouring hole 9, pours mouth 10
Blanking is carried out to inwall 2；Floor 3 is embedded with pouring hole 9 in the side close to inwall 2 when adverse construction method, facilitates to pour and smash
Constructing operation, enable concrete to be directly transported to lower layer's inwall 2 from basement upper layer floor 3, conveying while it is straight
It connects to start to pour and smashes operation, substantially increase inwall 2 and pour the speed of application smash, avoid that concrete is first transported down to inwall
2 place floors, then the shortcomings that smashing is poured to mouth 10 is poured by manual elevation；Meanwhile it pouring 10 end of mouth and being higher by construction joint, concrete
The volume of concrete in mouth 10 is poured when pouring greater than 10 bottom of mouth is poured to the volume of concrete between lower convex platform 5, utilizes coagulation
The close concrete joint of soil pressure differential pressure, the concrete be conducive between steel plate for sealing water 6 and lower convex platform 5 combine.
As an example, in the present embodiment, if embodiment needs are constructed according to following standard：Basement building sides
Product 27859.71m2, F3/B3, depth capacity 19.95m, the high 5.0m of basement one layer, the high 3.8m layer by layer of underground two, underground three
High 5.05m layer by layer.Basement excavation design security level category level-one foundation pit, the present embodiment are suitable for basement deep basal pit contrary sequence method
Engineering.Foundation pit enclosure doubles as outer wall of basement, in diaphram wall 1 using thick " unification of the two walls " diaphram wall 1 of 800mm
400mm thickness cast-in-situ steel reinforced concrete inwall 2 is arranged in wall.
The present embodiment is constructed using following steps：
Carry out adverse construction method technique
Step 1 clears up diaphram wall 1：
It picks chisel and removes 1 inner wall surface bulge of diaphram wall, flatness controls within 20mm, by 1 table of diaphram wall
Soil, broken concrete and laitance that face is sticky with, rusty stain, greasy dirt etc. are cleaned out, and are rushed Xian surface with giant when necessary, are gone
Except residual sundries.
Step 2, pre-buried pouring hole 9：
For convenience of 2 concreting of later period inwall, upper layer floor 3 is in the side position 100-200mm close to inwall 2
It is uniformly embedded with pouring hole 9, pouring hole 9 is PVC casing；PVC casing diameter 160mm, spacing 1000mm, PVC casing are extending
Mouth 10, length 1000mm are poured to lower layer's inwall 2.
Step 3, embedded water stop steel plate 6：
It is embedded with steel plate for sealing water 6 at construction joint between convex platform 4, lower convex platform 5 and inwall 2, using 300 × 3mm
Steel plate be processed into "] " shape, more can effectively prevent at construction joint leak.
Step 4, floor 3, convex platform 4 and lower convex platform 5 are constructed：
1 inner wall of diaphram wall and floor 3 are connected with each other by boss, and the boss above floor 3 is denoted as convex platform
4, the boss positioned at 3 lower section of floor is denoted as lower convex platform 5；The reserved joint bar in convex platform 4, lower convex platform 5, it is vertical for inwall 2
Reinforcing bar connection；In horizontal pre-buried one of the sealing up screw 7 in 4 middle position of convex platform, horizontal space 450mm；4 height of convex platform
500mm, 5 height 750mm of lower convex platform.Adverse construction method completes each floor plate 3 of basement, convex platform 4 and lower convex platform 5, subsequently into
It is suitable to make inner lining construction wall 2.Inwall 2 is arranged on the inner wall of diaphram wall 1, and inwall 2 is located at convex platform 4 and lower convex platform
Between 5.
Progress is suitable to make construction technology
Step 5, sealing up screw 7 are installed：
1 inner wall of diaphram wall is equipped with sealing up screw 7；One end of sealing up screw 7 is light circle screw rod 7-1, light circle screw rod
The centre of 7-1 is fully welded seal ring 7-2, and the end of sealing up screw 7 is equipped with the bending welding section with 1 reinforcement welding of diaphram wall；
The other end of sealing up screw 7 is thread screw, and thread segment 7-4 has nut 7-3.Sealing up screw 7 diameter M14mm, welding section 5d, light
Circle screw rod 7-1 length 500mm, thread screw length 200mm.It is continuous in underground according to 2 height of inwall and formwork reinforcement position
7 position of sealing up screw, 450 × 450mm of spacing are oriented on wall 1；Then expose reinforcing bar in 1 inner wall dabbing of diaphram wall, only
One end of water screw rod 7 and 1 reinforcement welding of diaphram wall；2 boundary of inwall, adjusting nut 7-3 are released using Geoplane
The position of screw thread on sealing up screw 7, then nut 7-3 is welded or gluing is fixed on screw rod, the other end of sealing up screw 7
2 thickness of inwall is positioned by nut 7-3.
Step 6, inwall form bracing system 11 are constructed：
Before the binding of 2 reinforcing bar of inwall, by the laitance and loose concrete chisel removal, cleaning around construction joint steel plate for sealing water 6
Completely.2 reinforcing bar of inwall is connect with sealing up screw 7, adverse construction method reserved joint bar.It is stitched in convex platform 4,5 distance construction of lower convex platform
2mm thickness sponge strip, mortar leakage prevention are pasted at the 30mm of boundary between template.
It is closely knit for convenience of concreting, pour the top loudspeaker that mouth 10 is uniformly arranged on inwall form bracing system 11
Mouthful haunch pours mouth 10 and is positive triangular structure, it is ensured that it is indeformable to pour 10 shuttering supporting reinforcement system of mouth；Pour 10 width of mouth
250mm, height 400mm pour 10 hang plate of mouth in 45 ° of inclinations and are fixed on 2 die head of inwall, and hang plate end is in
Chemise 2 has 250mm, and hang plate end is higher by construction joint 150mm, using the principle of concrete gravity and internal and external pressure balance, makes
After-pouring concrete and 5 seam crossing of lower convex platform are effectively closely knit；The pouring hole 9 right above mouth 10 for upper layer is poured, it is simultaneous to pour mouth 10
Concrete vibrates mouth.
Inwall 2 carries out single surface formwork reinforcing, inwall form bracing system 11 by inwall form bracing system 11
Single surface formwork reinforcing is carried out by sealing up screw 7, bamboo slab rubber, flitch, steel pipe, setting diagonal brace is reinforced on the outside of template；Using 1830
× 915 × 15mm bamboo slab rubber, 40mm × 80mm flitch, Ф 48 × 3mm steel pipe, main stupefied steel pipe spacing 450mm, secondary stupefied flitch spacing
250mm, the horizontal and vertical spacing of sealing up screw 7 is 450mm.1.5 × 1.5 × 3 meters of steel pipe frame operations are set up on the outside of template
Platform, safety and firmness facilitate inwall form bracing system 11 to reinforce, pour and pick chisel concrete.
7 diameter of sealing up screw, spacing meet template force request.Template is cleaned out, and interleaving agent brushing is uniform.Template mark
Height, position, size closely conform to require, bracket stable, and support and template are fixed reliable, and formwork edge joint is tight, meets the requirements.
Step 7, casting and compacting of concrete：
Concrete is transported to the dump skip 8 of 2 upper layer floor 3 of inwall through pump line, by pouring hole 9, pours mouth 10 inwardly
Chemise 2 carries out artificial blanking；Connected by pouring 10 pairs of inwall form bracing systems 11 of mouth, convex platform 4, lower convex platform 5 and underground
Space between continuous wall 1 carries out pouring to form inwall 2.Blanking velocity is controlled when concreting, blanking will uniformly, vibration
Stick is vibrated by pouring the insertion of mouth 10.Dump skip 8 is equipped with right above pouring hole 9, dump skip 8 is 600 × 600 × side 200mm
Shape opening wooden box, bottom centre opening diameter 160mm.
30min pours a small amount of clear water into template before casting and compacting of concrete, and template, reinforcing bar are sufficiently soaked.Construction site is mixed
Solidifying soil slump control prevents the slump excessive, segregation phenomenon occurs and influence strong concrete in 170-200mm, preferably 180mm
Degree, while also avoiding that the slump is too small to be difficult to vibration compacting, easily cause honeycomb or hole phenomenon.Concreting in lifts,
And it is poured next time again after each concrete vibrating poured in height is closely knit.Concreting is to 2 template of inwall
When top, speed of perfusion is reduced, top laitance is cleared up, then casting concrete and is higher by construction joint at least 100mm again.Due to
The configuration of 2 reinforcing bar of inwall is close, and the excessive concrete vibrating that is unfavorable for of vibrating head diameter is closely knit when vibrating, and there are portion 50mm vibrations
Dynamic stick, which is difficult to be inserted into, to vibrate, while being equipped with 30mm vibrating head, smashes operation for cooperating to pour, guarantees the density of casting and compacting of concrete；
Using plug-in type vibrating stick, fast insert is pulled out slowly, is carried out in order；Vibrate upper layer when should be inserted into lower-layer concrete face 50mm, with eliminate
The seam of two interlayers；Vibration is smash inside inwall 2, while auxiliary smashes vibration on the outside of 2 template of inwall.
Step 8, demoulding, maintenance and cleaning：
After concreting, conserved in time.When template and support removing, concrete strength should ensure that its table
Face and corner angle are not damaged because of form removal, prevent form removal eraly from crack being caused to generate.Form removable follow first prop up tear open afterwards, after
Branch is first torn open, top-down principle.The extra screw rod in 7 end of sealing up screw is cut off, concrete wall surface is watered, it is naked in inwall 2
Reveal surface covering layer of plastic film maintenance.After concrete reaches some strength, manually rejects and repair smooth pour at mouth 10
Any excess concrete of superfilled part.The pouring hole 9PVC casing reserved in floor 3 is removed, and is blocked with concrete.
The utility model ensure that concrete casting is closely knit at construction joint, has by being equipped with pouring hole 9 and pouring mouth 10
It is easy to make, advantage easy to operate, with strong points, efficiently solves and generate infiltration at 2 construction joint of basement top-down method inwall
The problem of water；Meanwhile the utility model had not only reduced the generation poured and smash rear inwall 2 crack and voids and pits, but also significantly improved
New-old concrete seam crossing quality reduces the trouble of later period repairing；Meanwhile inwall 2 can be organic with diaphram wall 1
In conjunction with one is formed, it can be considered the extension of 1 thickness of diaphram wall to a certain extent, antiseepage, shearing resistance can be played the role of.
The utility model is conducive to 2 formwork erection of inwall, the perfect construction method of inwall form bracing system 11,
2 shuttering supporting of inwall is set to become simple, practical, firm；The constructing operation poured and smash is facilitated, inwall 2 is improved and pours and smash
Speed of application.
Pass through pouring hole in conclusion the utility model can provide one kind, pour mouth, ensure that concrete pours at construction joint
It fills closely knit, is easy to make, it is easy to operate, it is with strong points, it efficiently solves and generates infiltration at basement top-down method inwall construction joint
Water；Not only reduce the generation poured and smash rear liner wall crack and voids and pits, but also significantly improve new-old concrete seam crossing quality,
Reduce the troublesome basement inwall using reverse construction of later period repairing.
The utility model is described in detail in above embodiments, but the content is only the preferable reality of the utility model
Example is applied, should not be considered as limiting the scope of the present invention.Equalization made according to the scope of application of this utility model
Variation and improvement etc., should still belong within the patent covering scope of the utility model.
Claims (6)
1. a kind of basement inwall using reverse construction, it is characterised in that：The basement using reverse construction
Inwall is arranged on the inner wall of diaphram wall, and the diaphram wall inner wall and floor are connected with each other by boss, position
The boss above the floor is denoted as convex platform, and the boss below the floor is denoted as lower convex platform, described
Inwall is embedded at the construction joint between the boss and the inwall between the convex platform and the lower convex platform
Steel plate for sealing water.
2. the basement inwall according to claim 1 using reverse construction, it is characterised in that：The underground is continuous
Inner wall is equipped with sealing up screw.
3. the basement inwall according to claim 2 using reverse construction, it is characterised in that：The sealing up screw
One end be light circle screw rod, the centre of light circle screw rod is fully welded seal ring, and the end of the sealing up screw is equipped with described
The bending welding section of lower diaphragm wall reinforcement welding, the other end of the sealing up screw are the thread screw with nut.
4. the basement inwall according to claim 3 using reverse construction, it is characterised in that：In work progress
In, the floor is embedded with pouring hole in the side close to the inwall, and dump skip is equipped with right above the pouring hole, described
It is equipped with immediately below pouring hole and pours mouth, the top for pouring mouth and inwall form bracing system being set, the convex platform
The inwall form bracing system is equipped between the lower convex platform, by the mouth that pours to the inwall shuttering supporting
Space between system, the convex platform, the lower convex platform and the diaphram wall carries out pouring to form the inwall.
5. the basement inwall according to claim 4 using reverse construction, it is characterised in that：In work progress
In, the other end of the sealing up screw positions the liner wall thickness by the nut, and the inwall passes through institute
It states inwall form bracing system and carries out single surface formwork reinforcing.
6. the basement inwall according to claim 4 using reverse construction, it is characterised in that：The pouring hole is
PVC casing, the mouth that vibrates for pouring mouth and also serving as concrete.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629596A (en) * | 2019-01-09 | 2019-04-16 | 中国水利水电第八工程局有限公司 | Lid digs subway station side wall construction template system and construction method |
| CN110820724A (en) * | 2019-12-13 | 2020-02-21 | 广西路桥工程集团有限公司 | Device and method for connecting reinforcement cage of diaphragm wall and lining wall |
| CN112411622A (en) * | 2020-11-26 | 2021-02-26 | 上海宝冶集团有限公司 | Method for building lining wall in reverse construction method of basement side area |
| CN113338332A (en) * | 2021-04-26 | 2021-09-03 | 上海建工四建集团有限公司 | Reverse construction method for slightly weathered rock area |
| CN113700037A (en) * | 2021-09-07 | 2021-11-26 | 浙江交工地下工程有限公司 | Reverse construction method underground ultra-thick side wall pouring construction device and method thereof |
| CN113833017A (en) * | 2021-09-06 | 2021-12-24 | 苏州中车建设工程有限公司 | Underground ultra-thick side wall formwork support system and construction method |
| CN113846694A (en) * | 2021-09-26 | 2021-12-28 | 中国五冶集团有限公司 | Cyclone tank reverse construction method tank wall formwork structure and cyclone tank construction method |
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2018
- 2018-04-23 CN CN201820586231.9U patent/CN208167956U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629596A (en) * | 2019-01-09 | 2019-04-16 | 中国水利水电第八工程局有限公司 | Lid digs subway station side wall construction template system and construction method |
| CN110820724A (en) * | 2019-12-13 | 2020-02-21 | 广西路桥工程集团有限公司 | Device and method for connecting reinforcement cage of diaphragm wall and lining wall |
| CN112411622A (en) * | 2020-11-26 | 2021-02-26 | 上海宝冶集团有限公司 | Method for building lining wall in reverse construction method of basement side area |
| CN113338332A (en) * | 2021-04-26 | 2021-09-03 | 上海建工四建集团有限公司 | Reverse construction method for slightly weathered rock area |
| CN113338332B (en) * | 2021-04-26 | 2023-01-06 | 上海建工四建集团有限公司 | Reverse construction method for slightly weathered rock area |
| CN113833017A (en) * | 2021-09-06 | 2021-12-24 | 苏州中车建设工程有限公司 | Underground ultra-thick side wall formwork support system and construction method |
| CN113700037A (en) * | 2021-09-07 | 2021-11-26 | 浙江交工地下工程有限公司 | Reverse construction method underground ultra-thick side wall pouring construction device and method thereof |
| CN113846694A (en) * | 2021-09-26 | 2021-12-28 | 中国五冶集团有限公司 | Cyclone tank reverse construction method tank wall formwork structure and cyclone tank construction method |
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