CN208578049U - Deep pit support protecting assembly - Google Patents
Deep pit support protecting assembly Download PDFInfo
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- CN208578049U CN208578049U CN201821181085.8U CN201821181085U CN208578049U CN 208578049 U CN208578049 U CN 208578049U CN 201821181085 U CN201821181085 U CN 201821181085U CN 208578049 U CN208578049 U CN 208578049U
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- casing
- steel reinforcement
- concrete pile
- bored concrete
- tubular structure
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Abstract
The utility model discloses a kind of deep pit support protecting assemblies, comprising: bored concrete pile framework of steel reinforcement and casing；Bored concrete pile framework of steel reinforcement includes main reinforcement and spiral bar, and at least three main reinforcements are arranged in parallel, and spiral bar is spirally wound at least three main reinforcements and constitutes columnar skeleton；Casing is the tubular structure being interconnected along axial cylinder junction, and the interior circular diameter of tubular structure is greater than the diameter of bored concrete pile framework of steel reinforcement；Casing is fixed in deep basal pit, and bored concrete pile framework of steel reinforcement lifts in the tubular structure of casing, and the concrete perfusion in casing.By the technical solution of the utility model, improve deep foundation cast-in-place constructs efficiency and integral strength, reduces the influence to environment, reduces concrete amount, enhances the protective action to construction safety.
Description
Technical field
The utility model relates to foundation pit support device technical field more particularly to a kind of deep pit support protecting assemblies.
Background technique
It in Process of Engineering Construction, is influenced by construction environment, often will cause construction progress difficulty.Especially it is being in
The construction project of downtown urban land, the various heavy constructions in location locating for engineering are converged, transport hub is intensive, underground piping facility
Complexity brings strong influence to construction.Under such construction environment, pattern foundation pit supporting structure excavation is particularly important,
Need stringent technology to test, in face of complicated site operation environment, the supporting of foundation pit and excavation ambient enviroment can be brought compared with
Big influence, slightly mistake can bring about serious destruction.In addition, in environment remediation field, after some chemical enterprises removes,
The pollution of different depth is caused to the soil and groundwater of former address, when carrying out deep layer reparation to this, the safety of pattern foundation pit supporting structure
Also it is particularly important.
Utility model content
At least one of regarding to the issue above, the utility model provides a kind of deep pit support protecting assembly, utilizes casing
With the common constructing concrete deep foundation cast-in-place of bored concrete pile framework of steel reinforcement, improve deep foundation cast-in-place constructs efficiency and entirety
Intensity reduces the influence to environment, reduces concrete amount, enhances the protective action to construction safety.
To achieve the above object, the utility model provides a kind of deep pit support protecting assembly, comprising: bored concrete pile framework of steel reinforcement
And casing；The bored concrete pile framework of steel reinforcement includes main reinforcement and spiral bar, and at least three main ribs are arranged in parallel, the spiral bar
It is spirally wound at least three main ribs and constitutes columnar skeleton；The casing is to be interconnected along axial cylinder junction
Tubular structure, the interior circular diameter of the tubular structure is greater than the diameter of the bored concrete pile framework of steel reinforcement；The casing is fixed on
In deep basal pit, the bored concrete pile framework of steel reinforcement is lifted in the tubular structure of the casing, and is perfused in the casing
Concrete.
In the above-mentioned technical solutions, it is preferable that the bored concrete pile framework of steel reinforcement further includes reinforcing lock muscle, and muscle is locked in the reinforcement
It is mutually fixed perpendicular to main ribs and at least three main ribs, the different positions reinforced lock muscle and be distributed in main ribs
It sets.
In the above-mentioned technical solutions, it is preferable that the casing is rolled using the steel plate of 5~10 mm of thickness, the casing
Tubular structure diameter be 800 millimeters.
In the above-mentioned technical solutions, it is preferable that the casing depth is 7~15 meters.
In the above-mentioned technical solutions, it is preferable that naphthalene series high-efficiency water-reducing agent is added in the concrete, the naphthalene series high-efficiency subtracts
Aqua quality is the 2%~3% of the concrete quality.
Compared with prior art, the utility model has the following beneficial effects: passing through casing and the common structure of bored concrete pile framework of steel reinforcement
Concrete deep foundation cast-in-place is built, improve deep foundation cast-in-place constructs efficiency and integral strength, reduces the shadow to environment
It rings, reduces concrete amount, enhance the protective action to construction safety.
Detailed description of the invention
Fig. 1 is the side structure schematic view of deep pit support protecting assembly disclosed in a kind of embodiment of the utility model；
Fig. 2 is the overlooking structure diagram of deep pit support protecting assembly disclosed in a kind of embodiment of the utility model.
Corresponding relationship in figure, between each component and appended drawing reference are as follows:
11. muscle is used in main reinforcement, 12. spiral bars, 13. casings, 14. reinforcing ribs, 15. liftings.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
The utility model is further described in detail with reference to the accompanying drawing:
As depicted in figs. 1 and 2, according to a kind of deep pit support protecting assembly provided by the utility model, comprising: bored concrete pile reinforcing bar
Skeleton and casing 13；Bored concrete pile framework of steel reinforcement includes main reinforcement 11 and spiral bar 12, and at least three main reinforcements 11 are arranged in parallel, spiral bar
12 are spirally wound at least three main reinforcements 11 and constitute columnar skeleton；Casing 13 is to be interconnected along axial cylinder junction
Tubular structure, the interior circular diameter of tubular structure are greater than the diameter of bored concrete pile framework of steel reinforcement；Casing 13 is fixed in deep basal pit, perfusion
Stake framework of steel reinforcement lifts in the tubular structure of casing 13, and the concrete perfusion in casing 13.
In this embodiment, it is necessary first to be irrigated the positioning of stake on construction ground, complete structures using total station
Shaft centerline measurement, spill axis with ash, the stake position of each bored concrete pile, then the reinforcing bar with long 10cm made according to geometric principle
Head is inserted on central point.Measure of pile position is carried out before bored pile construction, and after stake machine is marched into the arena, the attachment of stake machine and outfit is carried out
It checks.It is the pile-type of φ 600 that diameter is selected in the implementation process of the utility model, it is contemplated that soil property is flour sand ground, is used
Diameter is respectively the pile crown of 58cm, is equipped with conduit, and conduit examination carries out airtightness test after spelling, to meet the requirement of construction.It is true
The quality for protecting first filling amount makes conduit mouth be embedded to concrete always greater than 1.5m, and the first filling amount of 600 pile-type of φ is greater than 0.5m3, scene makes
Use 1.0m3The hopper of volume.When embedded, 13 central axis of casing is to the positive stake position center for surveying fixed pile.Its deviation is not greater than
10cm, and the position of strict protection casing 13, and guarantee the verticality and levelness of casing 13, to ensure that hole location is correct, casing
13 not deviations, and must assure that casing 13 is vertical, waterproof.
Wherein, cast-in-situ bored pile uses direct circulation method, and three wings list waistband drag bit rotary drilling pore-forming, direct circulation is twice
Borehole cleaning technique, catheter perfusion pile.Drilling machine installs bottom surface level in place on workbench, and drilling rod is vertical, before spudding in, with warp
Latitude instrument surveys quasi- drilling rod verticality, and when operation first starts slush pump and bores disk, is allowed to turn a period of time, in mud input drilling one
Start to creep into after fixed number amount, starts suitable control drilling depth when drilling.Further according to geological condition when 1m or less at 13 blade foot of casing
It is crept into normal speed.After whole hole meets projected depth on inspection, using changing slurry processes borehole cleaning.The specific method is as follows: whole hole stops
Drilling bores drill bit sky, to grind mud item, while original mud balance being kept to be recycled, and residue is not in hole for dross
Disconnected emersion after about 2 hours, changes slurry using clear water and specific gravity is adjusted to < 1.25.
Specifically, after the completion of the hole being drilled being cleared up, by bored concrete pile reinforcing bar made of 12 framework of main reinforcement 11 and spiral bar
Frame lifts in casing 13, it is preferable that is equipped with lifting muscle 15 in the upper end of bored concrete pile framework of steel reinforcement, lifting is vertical with muscle 15
In the direction of main reinforcement 11, bored concrete pile framework of steel reinforcement is sling using lifting muscle 15 in hoisting process, is fitted into casing 13, next
The concrete perfusion into casing 13 waits concrete coagulation after the completion of perfusion.
During filling concrete, it is irrigated by pump truck using tremie method.To prevent mouth under conduit from intaking, conduit mouth begins
Embedment concrete is greater than 1.5m eventually, and conduit is at away from bottom hole 0.3m~0.5m.Conduit maximum buried depth in concrete is not greater than 6m.Biscuit fire
Amount will guarantee conduit 0.8m~1.2m in concrete, and biscuit fire amount cannot be less than code requirement, the requires of the utility model φ 600
First filling amount is no less than 0.5m3.When promoting conduit during casting concrete, forbid conduit lift-off concrete surface, depth of catheter
Control cannot be less than 2m in 2m~6m.When perfusion is close to stake top absolute altitude, strict control calculates last time casting concrete amount.
Perfusion terminates when concrete face absolute altitude is higher than designed stake top absolute altitude 50cm~80cm.It is prevented on steel reinforcement cage in concreting process
It is floating, suitably slow down speed of perfusion when starting to pour, can suitably promote conduit when concrete surface enters steel reinforcement cage bottom end 1m~2m,
Discharging is steadily avoided to impact excessive or hook strip steel reinforcement cage when promotion.In uncertain concreting face lifting position, must use
Lining rope determines, then promotes conduit.
After perfusion is completed 28 days, bored concrete pile intensity is detected, according to " architecture foundation pile inspection specifications "
(JGJ106-2003) it requires, pile integrity detection, pile foundation quantity is carried out to the utility model grout pile radix amount 20%
1% carries out bearing capacity of single pile test.
In the above embodiment, it is preferable that bored concrete pile framework of steel reinforcement further include reinforce lock muscle 14, reinforce lock muscle 14 perpendicular to
Main reinforcement 11 is simultaneously fixed at least three 11 phases of main reinforcement, reinforces the different location that lock muscle 14 is distributed in main reinforcement 11, so that bored concrete pile steel
Tendons skeleton will not be softened or bend between main reinforcement 11, substantially increase bored concrete pile after the completion of concrete perfusion or perfusion
The intensity of framework of steel reinforcement.
In the above embodiment, it is preferable that casing 13 is rolled using the steel plate of 5~10 mm of thickness, it is preferred to use 8 millimeters
Steel plate roll, the internal diameter of the tubular structure of casing 13 is preferably 800 millimeters, to prevent 13 outer ring of casing in drilling construction from returning slurry
It causes to collapse hole and casing 13 falls off, casing 13 is embedded to nature below ground > 1.0m, and the poor position depth of burying of soil property suitably adds
It is deep.
In the above embodiment, it is preferable that the utility model is preferred for deep 7~15 meters of the base pit engineering in hole, it is suitable for
Bury matter and sand soil area, therefore, the preferred depth of casing 13 are 7~15 meters.Bored concrete pile support pattern is answered in campshed formula
With most one kind, environmental hazards, the phenomenon without squeezing soil such as without friction, noiseless are small to surrounding environment influence when construction；Wall is strong
Degree is high, and rigidity is big, and supporting stability is good, deforms small.Bored concrete pile supporting is do mechanization operation, construction is simple；Speed of application is fast, accounts for
Ground is small, technical maturity, comparatively more secure and reliable.By using the support pattern of bored concrete pile, not only construction safety is played
Protective action, and can effectively guarantee the normal use of construction site surrounding building, structures and related infrastructure,
Ensure the normal life of resident nearby.
In the above embodiment, it is preferable that bored concrete pile uses concrete-reinforcing bar wall supporting, addition naphthalene system is high in concrete
Water-reducing agent is imitated, naphthalene series high-efficiency water-reducing agent quality is the 2%~3% of concrete quality.Naphthalene series high-efficiency water-reducing agent is through chemical industry synthesis
Non- research work of air entrained type high efficiency water reducing agent, not only can be reduced the dosage of concrete, save cost and also to concrete have it is significant it is early it is strong,
Reinforcing effect.
The above be the embodiments of the present invention, according to the utility model proposes deep pit support protecting assembly, lead to
Casing and the common constructing concrete deep foundation cast-in-place of bored concrete pile framework of steel reinforcement are crossed, improve deep foundation cast-in-place constructs efficiency
And integral strength, the influence to environment is reduced, concrete amount is reduced, enhances the protective action to construction safety.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of deep pit support protecting assembly characterized by comprising bored concrete pile framework of steel reinforcement and casing；
The bored concrete pile framework of steel reinforcement includes main reinforcement and spiral bar, and at least three main ribs are arranged in parallel, the spiral bar spiral shell
Rotation, which is wrapped at least three main ribs, constitutes columnar skeleton；
The casing is the tubular structure being interconnected along axial cylinder junction, and the interior circular diameter of the tubular structure is greater than institute
State the diameter of bored concrete pile framework of steel reinforcement；
The casing is fixed in deep basal pit, and the bored concrete pile framework of steel reinforcement lifts in the tubular structure of the casing,
And the concrete perfusion in the casing.
2. deep pit support protecting assembly according to claim 1, which is characterized in that the bored concrete pile framework of steel reinforcement further includes adding
Strong lock muscle, the reinforcement lock muscle are mutually fixed perpendicular to main ribs and at least three main ribs, the reinforcement lock muscle distribution
In the different location of main ribs.
3. deep pit support protecting assembly according to claim 1, which is characterized in that the casing uses 5~10 mm of thickness
Steel plate roll, the diameter of the tubular structure of the casing is 800 millimeters.
4. deep pit support protecting assembly according to claim 1 or 3, which is characterized in that the casing depth is 7~15 meters.
5. deep pit support protecting assembly according to claim 1, which is characterized in that add naphthalene series high-efficiency in the concrete and subtract
Aqua, the naphthalene series high-efficiency water-reducing agent quality are the 2%~3% of the concrete quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181085.8U CN208578049U (en) | 2018-07-24 | 2018-07-24 | Deep pit support protecting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181085.8U CN208578049U (en) | 2018-07-24 | 2018-07-24 | Deep pit support protecting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578049U true CN208578049U (en) | 2019-03-05 |
Family
ID=65511130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821181085.8U Active CN208578049U (en) | 2018-07-24 | 2018-07-24 | Deep pit support protecting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208578049U (en) |
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2018
- 2018-07-24 CN CN201821181085.8U patent/CN208578049U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190304 Address after: 100095 Beijing Haidian District Dijin Road 9 Courtyard 13 Building-1-4 Floor 101 Inner Floor Co-patentee after: BEIJING GEOENVIRON ENGINEERING TECHNOLOGY, INC. Patentee after: Beijing GeoEnviron Engineering & Technology, Inc. Address before: 100095 Beijing Haidian District Dijin Road 9 Courtyard 13 Building-1-4 Floor 101 Inner Floor Patentee before: Beijing GeoEnviron Engineering & Technology, Inc. |
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| TR01 | Transfer of patent right |