CN209508958U - A kind of application static(al) abolishes pile crown system - Google Patents
A kind of application static(al) abolishes pile crown system Download PDFInfo
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- CN209508958U CN209508958U CN201822129197.5U CN201822129197U CN209508958U CN 209508958 U CN209508958 U CN 209508958U CN 201822129197 U CN201822129197 U CN 201822129197U CN 209508958 U CN209508958 U CN 209508958U
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- pile crown
- static
- expansion tube
- steel reinforcement
- reinforcement cage
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Abstract
The utility model discloses a kind of application static(al)s to abolish pile crown system.The utility model uses and is wrapped with disrance sleeve at the top of vertical steel reinforcement cage main reinforcement and sound detecting pipe, and the expansion tube that preset level is arranged in steel reinforcement cage, and after injecting concrete, swelling agent is into expansion tube；The bulbs of pressure, and the concrete of broken expansion tube and surrounding are generated around using swelling agent expansion, realize the static soundless cracking of pile crown；The utility model has the characteristics that dust-proof, noise reduction, green, environmental protection, economy, efficient; and the steel reinforcement cage main reinforcement of pile crown and sound detecting pipe can be protected not to be damaged; the requirement that Dust Improvement can be reached, the Municipal Road Engineering more demanding for dust control and noise absorption is using splendid.
Description
Technical field
The utility model relates to filling pile construction technologies, and in particular to a kind of application static(al) abolishes pile crown system.
Background technique
In filling process, concrete rolls bored concrete pile from the bottom up, can there is coarse aggregate sinking during rolling,
Fine aggregate floats, and leads to laitance occur, especially stake top part, laitance is serious, and it is poor to further result in stake top concrete strength.
In order to guarantee whole concrete strength of pile, when concrete perfusion, needs beyond design of pile top elevation a part, usually 0.8~
1.0m abolishes redundance after then excavating.
Traditional broken pile head working environment is poor, and noise is big when construction, dust is more, and while removing main reinforcement protective layer is consumed
Duration, it is careless slightly, reinforcing bar may be damaged, bar bending is caused to deform, so that the tensile strength of reinforcing bar is reduced, because
And joint area becomes weak spot.
For urban district strategic road, according to the construction technology of traditional broken pile head, noise is big, and noise pollution seriously affects surrounding
The life of resident；Construction technology dust is big, is unfavorable for Dust Improvement, is also unfavorable for the health of construction personnel；And broken
When except reinforcing bar and concrete binding part, one side electric pick is easy accidentally to get on reinforcing bar, and bar bending deformation is caused even to damage；
On the other hand due to the bonding of concrete, rebar surface is caused to pollute, or even corrosion, after reinforcing bar is stripped out, it is also necessary to secondary
Cleaning；Therefore, time-consuming, low efficiency, large labor intensity for existing construction technology.
Summary of the invention
In order to improve operating environment and advocate Green civilization construction, guarantee is smoothly efficiently completed and abolishes pile crown process,
The utility model proposes a kind of application static(al)s to abolish pile crown system.
Bored concrete pile includes steel reinforcement cage and concrete, and steel reinforcement cage is the cylinder of cage shape, parallel is vertically arranged by a plurality of
Steel reinforcement cage main reinforcement and sound detecting pipe and horizontal circumferentially disposed reinforcing cage stirrup are constituted；Ground is provided with downward stake holes, reinforcing bar
Cage is placed in stake holes, and concrete is perfused in stake holes, forms bored concrete pile, the central axis of steel reinforcement cage and the central axis weight of bored concrete pile
It closes.
The utility model using static(al) abolish pile crown system include: swelling agent, disrance sleeve, expansion tube, sealing-plug and
Communicating pipe；Wherein, it is wrapped with disrance sleeve at the top of the steel reinforcement cage main reinforcement being vertically arranged and sound detecting pipe of steel reinforcement cage, be isolated
The length of casing is to need to remove the length of the pile crown of part；Fixed more of the bottom end on steel reinforcement cage and positioned at disrance sleeve is flat
The expansion tube of row distribution, more expansion tubes are located in the same horizontal plane, and the both ends of expansion tube inner hollow, expansion tube are stretched respectively
Steel reinforcement cage out；The both ends of expansion tube are blocked by sealing-plug；Steel reinforcement cage is placed in stake holes；Concrete is injected into steel reinforcement cage；?
It is excavated with foundation pit around pile crown, exposes pile crown；The sealing-plug for removing expansion tube both ends, is inserted into connection at the both ends of expansion tube respectively
Pipe；The swelling agent being stirred is perfused by communicating pipe into expansion tube.
Material of the material of disrance sleeve using bond stress between barrier concrete and rebar cage main reinforcement and sound detecting pipe, foam
One of cotton, aluminium plastic composite material, plastics, bamboo pole and timber；Plastics use polyvinylchloride, polythene PE and polypropylene
One of PPR；It can satisfy that pile crown needs to remove the vertical steel reinforcement cage main reinforcement and sound detecting pipe of part and concrete can be every
It leaves, and slurries must not be poured into disrance sleeve.
The material of expansion tube uses stiff plastic waterproof material, and inner hollow has enabling capabilities and encounters pressure cracking
Fragile material；Using one of polyvinylchloride, polythene PE, aluminium plastic composite material and polypropylene PPR.
Sealing-plug is risen using one of rubber, adhesive tape, timber wedge and plastics and blocks expansion tube both ends, prevented slurries from pouring into
Purpose.
The internal diameter of expansion tube is 30~50mm；Pitch-row is 10~40cm.
Communicating pipe be " L " type elbow bend, direction vertically upward, inner hollow.
It further, further include support frame, horizontal support frame is arranged in the bottom end on steel reinforcement cage and positioned at disrance sleeve,
Expansion tube is fixed on the support frame；First is that mainly preventing expansion tube from not cracking along level when cracking, but crack down；Second is that protecting
When shield expansion tube prevents from rolling from the bottom up when concreting, cause to deviate the phenomenon that walks.
The advantages of the utility model:
The utility model uses and is wrapped with disrance sleeve at the top of vertical steel reinforcement cage main reinforcement and sound detecting pipe, and in steel
The expansion tube that preset level is arranged in muscle cage, after injecting concrete, swelling agent is into expansion tube；Around using swelling agent expansion
The bulbs of pressure, and the concrete of broken expansion tube and surrounding are generated, realizes the static soundless cracking of pile crown；The utility model has
Dust-proof, noise reduction, green, environmental protection, economy, efficient feature, and can protect pile crown steel reinforcement cage main reinforcement and sound detecting pipe not by
Damage, can reach the requirement of Dust Improvement, and the Municipal Road Engineering more demanding for dust control and noise absorption is using splendid.
Detailed description of the invention
Fig. 1 is the sectional elevation of the expansion tube of one embodiment that pile crown system is abolished using static(al) of the utility model
Figure；
Fig. 2 is the horizontal plane figure of the expansion tube of one embodiment that pile crown system is abolished using static(al) of the utility model.
Specific embodiment
With reference to the accompanying drawing, by specific embodiment, the utility model is further described.
As illustrated in fig. 1 and 2, it includes: swelling agent, disrance sleeve 1, support that the application static(al) of the present embodiment, which abolishes pile crown system,
Frame, expansion tube 2, sealing-plug and communicating pipe 3；Wherein, at the top of the steel reinforcement cage main reinforcement 4 and sound detecting pipe arranged vertically of steel reinforcement cage
It is wrapped with disrance sleeve 1, the length of disrance sleeve 1 is to need to remove the length of the pile crown of part；On steel reinforcement cage and it is located at
The bottom end of disrance sleeve 1 is provided with horizontal support frame；The expansion tube 2 of more parallelly distribute ons is fixed on the support frame, and more swollen
Tube expansion is located in the same horizontal plane, and 2 inner hollow of expansion tube, steel reinforcement cage is stretched out at the both ends of expansion tube 2 respectively；Expansion tube 2
Both ends are blocked by sealing-plug；Steel reinforcement cage is placed in stake holes；Concrete 5 is injected into steel reinforcement cage；It is strong to reach design to concrete 5
After degree, the excavation pit around pile crown exposes pile crown；The sealing-plug at 2 both ends of expansion tube is removed, and is inserted into communicating pipe 3 respectively；It stirs
The swelling agent mixed is perfused by communicating pipe 3 into expansion tube 2.
In the present embodiment, disrance sleeve 1 uses foam cotton, length 1.2m；Steel at the top 1.2m away from steel reinforcement cage
Horizontal support frame is set on muscle cage, using reinforcing bar；The internal diameter of expansion tube 2 is 32mm, and using polyvinylchloride pipe, pitch-row is
40cm；Sealing-plug uses rubber.
The method for abolishing pile crown using static(al) of the present embodiment, comprising the following steps:
1) disrance sleeve of 1.2m long is wrapped up outside the top of the steel reinforcement cage main reinforcement 4 and sound detecting pipe arranged vertically of steel reinforcement cage
1；
2) horizontal support frame is set on the steel reinforcement cage at the top 1.2m away from steel reinforcement cage；Binding and fixing on the support frame
The expansion tube 2 of more parallelly distribute ons, pitch-row 40cm；
3) both ends of expansion tube 2 are blocked using rubber as sealing-plug；
4) steel reinforcement cage is placed in stake holes, concrete 5 is injected into steel reinforcement cage；
5) after coagulation casting complete, after 5 intensity of concrete reaches design strength, foundation pit is carried out around pile crown and is opened
It digs, exposes pile crown, the region of 1 meter of construction operation is reserved around pile crown；
6) inbuilt expansion tube 2 in advance is found out, the sealing-plug at 2 both ends of expansion tube is cut, exposes the both ends of expansion tube 2, and
And it is inserted into the communicating pipe 3 of L-type elbow bend respectively at both ends；
7) water and swelling agent first plus after water add swelling agent in 1:3 ratio, stir into uniform paste, and temperature is lower than 10 DEG C
When, it is adjusted with 30 degree or so of warm water, after the completion of swelling agent stirring, to pass through connection rapidly when water and swelling agent stir
Swelling agent is perfused to expansion tube 2 pipe 3, and guarantees that the process being entirely perfused is completed in 10~15 minutes as far as possible；
8) swelling agent expansion sufficiently reaction, swelling agent starts to generate hydration in 20~30 minutes after perfusion, when reaction
Between after 2~3 hours, generate the bulbs of pressure around, start generate initial crack, crack continues to increase after 6~8 hours, 10~
Up to 80% or more of total crushing effect after 12 hours, the static soundless cracking of pile crown is realized；
9) pile crown need to remove part and separate completely with bored concrete pile, sling pile crown using crane, realize that static(al) abolishes pile crown；
10) it is cleared up after pile crown is abolished, then the absolute altitude of repetition measurement pile crown, with the concrete being scattered on high pressure air pressure gun blowout pile crown
Nitre, block, and pile crown is rinsed with clear water, expose the fresh concrete aggregate of stake top.
It is finally noted that the purpose for publicizing and implementing example is to help to further understand the utility model, but originally
The technical staff in field is understood that in the spirit and scope for not departing from the utility model and the attached claims, various
Substitutions and modifications are all possible.Therefore, the utility model should not be limited to embodiment disclosure of that, and the utility model is wanted
Seek the range of protection subject to the scope defined in the claims.
Claims (10)
1. a kind of application static(al) abolishes pile crown system, which is characterized in that it includes: expansion that the application static(al), which abolishes pile crown system,
Agent, disrance sleeve, expansion tube, sealing-plug and communicating pipe；Wherein, in the steel reinforcement cage main reinforcement being vertically arranged and sound detecting pipe of steel reinforcement cage
Top be wrapped with disrance sleeve, the length of the disrance sleeve is to need to remove the length of the pile crown of part；In steel reinforcement cage
The expansion tube of the fixed more parallelly distribute ons in bottom end that are upper and being located at disrance sleeve, more expansion tubes are located in the same horizontal plane,
Steel reinforcement cage is stretched out at the expansion tube inner hollow, the both ends of expansion tube respectively；The both ends of expansion tube are blocked by sealing-plug；The steel
Muscle cage is placed in stake holes；Concrete is injected into steel reinforcement cage；It is excavated with foundation pit around pile crown, exposes pile crown；Removal expansion
The sealing-plug at pipe both ends is inserted into communicating pipe at the both ends of expansion tube respectively；The swelling agent being stirred is by being perfused to swollen communicating pipe
In tube expansion.
2. abolishing pile crown system using static(al) as described in claim 1, which is characterized in that the material of the disrance sleeve uses
Obstruct the material of bond stress between concrete and rebar cage main reinforcement and sound detecting pipe.
3. abolishing pile crown system using static(al) as claimed in claim 2, which is characterized in that the material of the disrance sleeve uses
One of foam cotton, aluminium plastic composite material, plastics, bamboo pole and timber.
4. abolishing pile crown system using static(al) as claimed in claim 3, which is characterized in that the plastics that the disrance sleeve uses
For one of polyvinylchloride, polythene PE and polypropylene PPR.
5. abolishing pile crown system using static(al) as described in claim 1, which is characterized in that the material of the expansion tube is using hard
Plasticity waterproof material.
6. abolishing pile crown system using static(al) as claimed in claim 5, which is characterized in that the material of the expansion tube is adopted
With one of polyvinylchloride, polythene PE, aluminium plastic composite material and polypropylene PPR.
7. abolishing pile crown system using static(al) as described in claim 1, which is characterized in that the sealing-plug uses rubber, glue
One of band, timber wedge and plastics.
8. abolishing pile crown system using static(al) as described in claim 1, which is characterized in that the internal diameter of the expansion tube is 30~
50mm；Pitch-row is 10~40cm.
9. abolishing pile crown system using static(al) as described in claim 1, which is characterized in that the communicating pipe is " L " type right angle
Elbow, direction vertically upward, inner hollow.
10. abolishing pile crown system using static(al) as described in claim 1, which is characterized in that further include support frame, in steel reinforcement cage
Bottom end that is upper and being located at disrance sleeve, is arranged horizontal support frame, and expansion tube is fixed on the support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822129197.5U CN209508958U (en) | 2018-12-18 | 2018-12-18 | A kind of application static(al) abolishes pile crown system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822129197.5U CN209508958U (en) | 2018-12-18 | 2018-12-18 | A kind of application static(al) abolishes pile crown system |
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| Publication Number | Publication Date |
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| CN209508958U true CN209508958U (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457690A (en) * | 2018-12-18 | 2019-03-12 | 北京市市政四建设工程有限责任公司 | A kind of application static(al) abolishes pile crown system and its restructuring bankrupt |
-
2018
- 2018-12-18 CN CN201822129197.5U patent/CN209508958U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457690A (en) * | 2018-12-18 | 2019-03-12 | 北京市市政四建设工程有限责任公司 | A kind of application static(al) abolishes pile crown system and its restructuring bankrupt |
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