CN107542092A - High efficiency honeycomb method broken pile head construction technology - Google Patents
High efficiency honeycomb method broken pile head construction technology Download PDFInfo
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- CN107542092A CN107542092A CN201710713801.6A CN201710713801A CN107542092A CN 107542092 A CN107542092 A CN 107542092A CN 201710713801 A CN201710713801 A CN 201710713801A CN 107542092 A CN107542092 A CN 107542092A
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- reinforcement cage
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Abstract
The present invention discloses high efficiency honeycomb method broken pile head construction technology, in steel reinforcement cage processing and fabricating, disrance sleeve is cased with each cage bar and sound detecting pipe of steel reinforcement cage, after steel reinforcement cage machines, steel reinforcement cage is put into drilling, and concrete is poured into a mould into drilling, bored concrete pile is formed, after 7 days to be cast, carry out excavation of foundation pit, along the horizontal inserting piling gad block of ring cutting positional symmetry, until pile crown separates with pile body, then pile crown is removed.The present invention effectively prevent the damage to cage bar during Stake head handling by being inserted in disrance sleeve in cage bar.Also, operating process is simple, efficiency of construction is high, reduces the input of construction equipment, greatly reduces construction noise, it is therefore prevented that stirs up a cloud of dust, improves construction environment, effectively protects the health of workmen.
Description
Technical field
The invention belongs to bridge construction technology field, and in particular to high efficiency honeycomb method broken pile head construction technology.
Background technology
Because industrial expansion, the growth of population, skyscraper are continuously increased, but the foundation condition in many cities compares
Difference, there is the very big weak soil of thickness or the open-minded soil layer of moderate strength for underground, it is impossible to directly bears what is transmitted by skyscraper
Load.Then the just borehole in soil, and pouring reinforcement concrete and pile in hole.Until in the early 1940s, high-power
The appearance of drilling machine, cast-in-situ bored pile most start by people to be begun to use in the U.S..With science and technology development with rapid changepl. never-ending changes and improvements,
Design and construction level of the cast-in-situ bored pile in highway construction has also obtained significant progress.Cast-in-situ bored pile has construction party
Just, equipment is simple, construction noise is low, it is without friction, without extruding, it is small to effect of adjoining buildings the features such as.Cast-in-situ bored pile is general
Cohesive soil, silt, sand below level of ground water, banket, crushed-gravel soil, weathered rock formation and geological condition is complicated, interlayer
It is more, weathering is uneven, in the soft or hard rock stratum changed greatly.But to mud and the ground of quicksand or artesian water may occur, construct compared with
Difficulty, test pile should be done before construction to obtain experience.The maximum embedded depth for the cast-in-situ bored pile that China has constructed reaches over one hundred rice.
When pouring into a mould cast-in-place concrete pile, bored concrete pile top mark height should be higher than that design stake top 0.5~1.0m of absolute altitude, to ensure pile crown
Concrete strength, but must be cut higher than the pile crown part of design of pile top absolute altitude when subsequent handling is constructed, cut this part stake
The work of head concrete is called " broken pile head ".
Traditional broken pile head technique, ring cutting first is carried out with cutting machine to pile crown in pile crown top surface line position, manually
Pneumatic pick peels off the cover to reinforcement in invalid pile body, and then horizontal again plus brill pushes up the inner core for the invalid pile body that breaks and integrally hung.
Cage bar is easily damaged during construction, also, construction cost is high, low construction efficiency.
The content of the invention
In order to solve the problems such as high existing broken pile head technique, construction cost, low construction efficiency, the application provides a kind of efficient
Rate honeycomb method broken pile head construction technology.
The purpose of the present invention will be achieved through the following technical solutions：High efficiency honeycomb method broken pile head construction technology, in reinforcing bar
During cage processing and fabricating, disrance sleeve is cased with each cage bar and sound detecting pipe of steel reinforcement cage, will after steel reinforcement cage machines
Steel reinforcement cage is put into drilling, and concrete is poured into a mould into drilling, forms bored concrete pile, after 7 days to be cast, carries out excavation of foundation pit,
Along the horizontal inserting piling gad block of ring cutting positional symmetry, until pile crown separates with pile body, then pile crown is removed.
Preferably, described high efficiency honeycomb method broken pile head construction technology, the disrance sleeve is soft foamed pipe, really
Without bonding and have certain between guarantor's pile crown reinforcing bar and the concrete of perfusion and between pile crown sound detecting pipe and the concrete of perfusion
Space.
Preferably, described high efficiency honeycomb method broken pile head construction technology, stake top binder surrounding is more during the excavation of foundation pit
1m is reserved, the surrounding of foundation ditch sets security maintenance and warning mark.
Preferably, described high efficiency honeycomb method broken pile head construction technology, the pile crown are integrally vertically sling by loop wheel machine
Remove.
Preferably, described high efficiency honeycomb method broken pile head construction technology, after the pile crown removes, bored concrete pile is remeasured
Absolute altitude, the concrete nitre and concrete block that are scattered on bored concrete pile are blown down with high pressure air pressure gun, and bored concrete pile is rinsed with clear water, until exposing perfusion
The fresh concrete aggregate of stake stake top.
Compared with prior art, the invention has the advantages that：The present invention by being inserted in disrance sleeve in cage bar,
It effectively prevent the damage to cage bar during Stake head handling.Also, operating process is simple, efficiency of construction is high, reduces construction
The input of equipment, greatly reduces construction noise, it is therefore prevented that stirs up a cloud of dust, improves construction environment, effectively protect constructor
The health of member.
Embodiment
To more fully understand the present invention, make further specific elaboration, but not to the present invention below by following examples
Limitation of the invention is can be regarded as, some made for those skilled in the art according to foregoing invention content are nonessential
Improve and adjust, be also considered as being within the scope of the present invention.
Embodiment 1
High efficiency honeycomb method broken pile head construction technology, comprises the following steps：
The first step：Make steel reinforcement cage
During steel reinforcement cage processing and fabricating, disrance sleeve is cased with each cage bar and sound detecting pipe that pile crown gos deep into binder, every
Be flexible foam pipe from sleeve pipe, it is ensured that between pile crown reinforcing bar and the concrete of perfusion and pile crown sound detecting pipe with perfusion concrete
Between without bonding and have a certain space.
Second step：Pour into a mould bored concrete pile
After the completion of hole to be drilled, steel reinforcement cage is put into drilling, and concrete is poured into a mould into drilling, is formed after a period of time
Bored concrete pile.
3rd step：Excavation pit
After casting concrete 7 days, excavation of foundation pit is carried out, the Xiu Po of hand fit's foundation ditch, clear basic skill or training make.Stake during excavation of foundation pit
Top binder surrounding reserves 1m more, while carries out the security maintenance and warning mark of surrounding.
4th step：Separate pile crown
Along the horizontal inserting piling gad block of ring cutting positional symmetry, pile crown is set to be separated with pile body.Utilize the spy of concrete tensile strength
Property, by symmetrical horizontal inserting piling gad block, more easily pile crown can be made to be separated with pile body.
5th step：Remove pile crown
Pile crown integral hoisting is gone out into hole, directly removes pile crown (seeming honeycomb briquette) with overall vertically sling of loop wheel machine.
6th step：Clear up bored concrete pile
After abolishing pile crown, the absolute altitude of measurement bored concrete pile is rinsed, the concrete nitre and concrete being scattered on bored concrete pile are blown down with high pressure air pressure gun
Block, and bored concrete pile is rinsed with clear water, expose concrete aggregate fresh at bored concrete pile stake top.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit herein and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (5)
1. high efficiency honeycomb method broken pile head construction technology, it is characterised in that：In steel reinforcement cage processing and fabricating, in each of steel reinforcement cage
Disrance sleeve is cased with root cage bar and sound detecting pipe, after steel reinforcement cage machines, steel reinforcement cage is put into drilling, and to drilling
Middle cast concrete, bored concrete pile is formed, after 7 days to be cast, excavation of foundation pit is carried out, along the horizontal inserting piling gad of ring cutting positional symmetry
Block, until pile crown separates with pile body, then remove pile crown.
2. high efficiency honeycomb method broken pile head construction technology according to claim 1, it is characterised in that：The disrance sleeve is
Soft foamed pipe, it is ensured that do not have between pile crown reinforcing bar and the concrete of perfusion and between pile crown sound detecting pipe and the concrete of perfusion
Have and bond and have certain space.
3. high efficiency honeycomb method broken pile head construction technology according to claim 1, it is characterised in that：During the excavation of foundation pit
Stake top binder surrounding reserves 1m more, and the surrounding of foundation ditch sets security maintenance and warning mark.
4. high efficiency honeycomb method broken pile head construction technology according to claim 1, it is characterised in that：The pile crown is by hanging
Machine integrally vertically slings removal.
5. high efficiency honeycomb method broken pile head construction technology according to claim 1, it is characterised in that：The pile crown removes
Afterwards, the absolute altitude of bored concrete pile is remeasured, the concrete nitre and concrete block that are scattered on bored concrete pile are blown down with high pressure air pressure gun, and with clear water douche can
Stake is noted, until exposing the fresh concrete aggregate of bored concrete pile stake top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713801.6A CN107542092A (en) | 2017-08-18 | 2017-08-18 | High efficiency honeycomb method broken pile head construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713801.6A CN107542092A (en) | 2017-08-18 | 2017-08-18 | High efficiency honeycomb method broken pile head construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542092A true CN107542092A (en) | 2018-01-05 |
Family
ID=60958332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710713801.6A Pending CN107542092A (en) | 2017-08-18 | 2017-08-18 | High efficiency honeycomb method broken pile head construction technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN107542092A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160322A (en) * | 2020-09-11 | 2021-01-01 | 山西省交通科技研发有限公司 | Pile head softening treatment method for concrete cast-in-place pile |
| CN112761154A (en) * | 2020-12-31 | 2021-05-07 | 中交一公局第二工程有限公司 | Method for breaking pile head of concrete cast-in-place pile |
| CN113502818A (en) * | 2021-07-20 | 2021-10-15 | 中铁二十一局集团第三工程有限公司 | Construction method of pile foundation pile head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493434A (en) * | 2011-11-28 | 2012-06-13 | 中铁大桥局股份有限公司 | Construction method for integrally and quickly hoisting and removing pile head of bored cast-in-place pile |
| CN106400802A (en) * | 2016-08-24 | 2017-02-15 | 中交公局厦门工程有限公司 | Integral quick lifting method for pile head of drilled pile during pre-embedding and drilling-free ring-cutting |
-
2017
- 2017-08-18 CN CN201710713801.6A patent/CN107542092A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493434A (en) * | 2011-11-28 | 2012-06-13 | 中铁大桥局股份有限公司 | Construction method for integrally and quickly hoisting and removing pile head of bored cast-in-place pile |
| CN106400802A (en) * | 2016-08-24 | 2017-02-15 | 中交公局厦门工程有限公司 | Integral quick lifting method for pile head of drilled pile during pre-embedding and drilling-free ring-cutting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160322A (en) * | 2020-09-11 | 2021-01-01 | 山西省交通科技研发有限公司 | Pile head softening treatment method for concrete cast-in-place pile |
| CN112761154A (en) * | 2020-12-31 | 2021-05-07 | 中交一公局第二工程有限公司 | Method for breaking pile head of concrete cast-in-place pile |
| CN113502818A (en) * | 2021-07-20 | 2021-10-15 | 中铁二十一局集团第三工程有限公司 | Construction method of pile foundation pile head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180105 |