CN108677952A - A kind of CFG pile heads pre-cut device and its construction method - Google Patents
A kind of CFG pile heads pre-cut device and its construction method Download PDFInfo
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- CN108677952A CN108677952A CN201810520962.8A CN201810520962A CN108677952A CN 108677952 A CN108677952 A CN 108677952A CN 201810520962 A CN201810520962 A CN 201810520962A CN 108677952 A CN108677952 A CN 108677952A
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- Prior art keywords
- cfg
- casing
- pile
- cfg pile
- cut
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
Abstract
The present invention discloses a kind of CFG pile heads pre-cut device, including casing, slip casting hose, the casing tumbler for being fixed at casing top and the tripod for being positioned to casing being inserted into not solidified CFG pile concretes；A kind of construction method of CFG pile heads pre-cut device, includes the following steps：Step 1：Stake top periphery ground row is smooth, places tripod；Step 2：Pile crown pre-cut device assembles；Step 3：Casing inserted with VERTICAL TUBE is inserted into not solidified CFG pile concretes；Step 4：Pump note mud, rotating casing tumbler；Step 5：Extract the casing in CFG pile concretes；Step 6：CFG are severed, pile crown is blocked in the position of CFG design height of pile top with cutting machine.The pre-cut device can be carried out effectively the injection to CFG mud, effectively raise CFG cut-off efficiencies, and can effectively prevent broken pile；The construction method convenient construction, it is easy to operate.
Description
Technical field
The present invention relates to CFG pile driving constructions device and construction method technical fields, and in particular to a kind of CFG pile heads pre-cut
Device and its construction method.
Background technology
CFG be the soft ground treatment that developed recently gets up new method.It is long to need ground extruding according to ground
Depth, generally 8-25m；Stake diameter is generally 350-600mm, is applicable in more for 400mm；Stake spacing is generally the 3- of stake diameter
6 times, minimum spacing 1200mm；The plan-position arrangement of stake mostly uses square or quincunx.During CFG pile driving constructions, stake
Top mark height be preferably higher by design stake top absolute altitude be no less than 0.5m, when operation side be higher by design stake top absolute altitude it is larger when, preferably increase
Filling concrete amount is reserved pile crown and is and then lengthened, can reach 0.8-3.0m.
Traditional CFG pile composite foundations need to clear up inter-pile soil before cutting pile crown, and since CFG arrangements are intensive, stake is net
Spacing is small, and multipurpose small digging machine hand fit excavates, must not be caused in work progress the following pile body breaking of stake top absolute altitude or
Disturb inter-pile soil.
Broken pile in order to prevent excavates operation and is concentrated mainly on progress on daytime, and excavating-machine operator is sure to high concentration energy,
Forbid mechanical collision pile body in digging process, otherwise, it is possible that pile body is caused to be broken below design stake top absolute altitude, increases repairing
Defect expense, it is necessary to according to place actual conditions, select correct sequence of excavation and route, be conducive to loading machine soil, automobile fortune
Soil.
Due to the presence of above various objective condition so that inter-pile soil excavation is difficult, it is more to occupy resource, cost is big, the duration
It is long, pile body is inevitably collided in work progress, quality is relatively difficult to guarantee.
For example, the patent document that Chinese invention patent application number is 201620876784.9 discloses a kind of concrete-pile
Disconnecting device, it is characterised in that：Including cutting off ontology, the upper and lower ends for cutting off ontology are two bottom surfaces parallel to each other, upper bottom
Face area is more than bottom surface；The front and rear sides of ontology are two parallel surfaces, are an arc surface on the right side of ontology, are one thin above left side
Long cut surface, cut surface lower section are an inwardly angled inclined-plane；Have one to run through ontology front-back above the cut-out ontology
Handle hole.
It is above-mentioned prior art discloses a kind of disconnecting device of concrete-pile, the above-mentioned prior art is in actual application process
In i.e. there are technical problems as above.
Based on technical problem as above exists in the prior art, the present inventor combines years of researches experience, proposes a kind of
CFG pile head pre-cut devices and its construction method.
Invention content
A kind of CFG pile heads pre-cut device of present invention offer and its construction method, the pre-cut device can be effective
The injection carried out to CFG mud, effectively raise CFG cut-off efficiencies, and can effectively prevent broken pile；It is described
Construction method convenient construction, it is easy to operate.
In order to achieve the above objectives, the present invention uses following technical scheme：
A kind of CFG pile heads pre-cut device, including be inserted into not solidified CFG pile concretes casing, slip casting
Hose, the casing tumbler for being fixed at casing top and the tripod for being positioned to casing, wherein casing energy
It is enough to rotate and what be moved up and down is matched with tripod, casing include be socketed in inside pipe casing VERTICAL TUBE and with VERTICAL TUBE
The horizontal tube of bottom end connection, wherein injected hole is provided on horizontal tube, the top of VERTICAL TUBE is communicated in slip casting hose.
Further, the vertical transmission device of casing is additionally provided on casing, the vertical transmission device of described sleeve pipe being capable of actuating sleeve
Pipe moves up and down in not solidified CFG pile concretes, and the vertical transmission device of described sleeve pipe includes being installed on the tripod
Fixed plate, the toothed disc being fixed in the fixed plate that can be rotated and what can be dismantled be fixed at the set
Rack on pipe, the rack are matched with the toothed disc.
Further, the bottom end of VERTICAL TUBE extends to the outside of casing shoe and is connected to the interlude of horizontal tube, slip casting
Hole is in be symmetrically arranged along the interlude of horizontal tube.
Further, the length of horizontal tube is less than CFG diameters.
The present invention also provides a kind of construction methods using CFG pile head pre-cut devices, include the following steps：
Step 1：It is manually smooth to the progress of stake top periphery soil after the completion of the perfusion of CFG pile concretes, in order to which formation operation is flat
Platform places tripod；
Step 2：Casing is matched with tripod, by horizontal tube and VERTICAL TUBE plug-in-sleeve, and by VERTICAL TUBE and slip casting
Hose is connected to；
Step 3：Casing inserted with VERTICAL TUBE is inserted into not solidified CFG pile concretes, using laser level mark
The elevation for determining CFG pile head pre-cut position makes the slurry position of letting out of horizontal tube be located at the above 10-20cm of design height of pile top；
Step 4：Mud is pumped into slip casting hose using grouting pump, manual rotating casing tumbler makes in casing
VERTICAL TUBE and horizontal tube rotate together 3-5 with casing and enclose, and the injection rate of mud is controlled in conjunction with CFG areas of section, has been injected
At closing grouting pump；
Step 5：Extract the casing in CFG pile concretes；
Step 6：Wait for that CFG pile concretes solidify completely, excavate inter-pile soil, made by the way of mechanical impact CFG from mud
It is broken at the injection of slurry, blocks pile crown in the position of CFG design height of pile top with cutting machine, complete cutting for CFG pile heads
Disconnected operation.
Further, in step 4, grout injection control valve is also associated between grouting pump and slip casting hose.
Further, further include the steps that configuration mud in step 4, add water with small-sized using high plastic clay or bentonite
Mechanical mixing forms, and control mud density is 1.1-1.3g/cm3.
Further, in step 4, the pumping pressure of mud is 0.03-0.04Mpa.
Compared with prior art, superior effect of the invention is：
CFG pile heads pre-cut device of the present invention, by being equipped with casing, slip casting hose, tripod, vertical
Pipe and horizontal tube, make the CFG pile heads pre-cut device can be carried out effectively the injection to CFG mud, effectively carry
High CFG cut-off efficiencies；Construction method of the present invention can effectively prevent by using the step of injecting mud
Only broken pile, to the construction procedure simplified.
Description of the drawings
Fig. 1 is the structural schematic diagram of CFG pile heads pre-cut device in the present invention；
Fig. 2 is the structural schematic diagram of middle sleeve of the present invention；
Fig. 3 is the structural schematic diagram of the vertical transmission device of middle sleeve of the present invention；
Wherein, 1- casings, 11- VERTICAL TUBEs, 12- horizontal tubes, 121- injected holes, 2- slip castings hose, 3- tripods, 4- casings
Tumbler, the vertical transmission device of 5- casings, 51- fixed plates, 52- toothed discs, 53- racks, 54- gear plate rails.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail, it should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Embodiment
As illustrated in the accompanying drawings from 1 to 3, a kind of CFG pile heads pre-cut device, including it is inserted into not solidified CFG pile concretes
In casing 1, slip casting hose 2, the casing tumbler 4 that is fixed at 1 top of casing and for being positioned to casing 1
Tripod 3, wherein casing 1 can rotate and what can be moved up and down is matched with tripod 3, and casing 1 includes being socketed in casing
The VERTICAL TUBE 11 in portion and the horizontal tube 12 being connected to the bottom end of VERTICAL TUBE 11, wherein be provided with injected hole 121 on horizontal tube 12, erect
The top of straight tube 11 is communicated in slip casting hose 2.
Wherein, described sleeve pipe tumbler 4 is two swing handles picked out along bushing outer surface.
Be additionally provided with the vertical transmission device 5 of casing on casing 1, the vertical transmission device of described sleeve pipe 5 can drive sleeve 1 not
It is moved up and down in the CFG pile concretes of solidification, the vertical transmission device 5 of described sleeve pipe includes being installed in consolidating on the tripod 3
It fixed board 51, the toothed disc 52 being fixed in the fixed plate 51 that can be rotated by gear plate rail 54 and can dismantle
The rack 53 being fixed in described sleeve pipe 1, the rack 53 are matched with the toothed disc 52, are opened up in the fixed plate 51
There is the through-hole that can be moved up and down for described sleeve pipe 1.
As an improvement of this embodiment, the rocking handle of drive gear disk rotation is additionally provided on the toothed disc.
In the present embodiment, by rotation crank, rack 53 is made to move up and down, realizes described sleeve pipe 1 in CFG pile concretes
In move up and down.
The bottom end of VERTICAL TUBE 11 extends to the outside of 1 bottom end of casing and is connected to the interlude of horizontal tube 12, injected hole 121
Interlude along horizontal tube 12 is in symmetric arrays.
The length of horizontal tube 12 is less than CFG diameters.
The present invention also provides a kind of construction methods using CFG pile head pre-cut devices, include the following steps：
Step 1：It is manually smooth to the progress of stake top periphery soil after the completion of the perfusion of CFG pile concretes, in order to which formation operation is flat
Platform places tripod 3；
Step 2：Casing 1 is matched with tripod 3, by 11 plug-in-sleeve of horizontal tube 12 and VERTICAL TUBE, and by VERTICAL TUBE
11 are connected to slip casting hose 2；
Step 3：Casing 1 inserted with VERTICAL TUBE 11 is inserted into not solidified CFG pile concretes, using laser level
The elevation for demarcating CFG pile head pre-cut position makes the slurry position of letting out of horizontal tube 12 be located at the above 10- of design height of pile top
20cm；
Step 4：Mud is pumped into slip casting hose 2 using grouting pump, manual rotating casing tumbler 4 makes in casing 1
VERTICAL TUBE 11 and horizontal tube 12 with casing 1 rotate together 3-5 enclose, in conjunction with CFG areas of section control mud injection rate,
Injection is completed, and grouting pump is closed；
Step 5：Extract the casing 1 in CFG pile concretes；
Step 6：Wait for that CFG pile concretes solidify completely, excavate inter-pile soil, made by the way of mechanical impact CFG from mud
It is broken at the injection of slurry, blocks pile crown in the position of CFG design height of pile top with cutting machine, complete cutting for CFG pile heads
Disconnected operation.
In step 4, grout injection control valve is also associated between grouting pump and slip casting hose 2.
Further include the steps that configuration mud in step 4, water small-sized machine mixing is added using high plastic clay or bentonite
It forms, control mud density is 1.1-1.3g/cm3.
In step 4, the pumping pressure of mud is 0.03-0.04Mpa.
The present invention is not limited to the above embodiments, and the above embodiments and description only describe the present invention's
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these change and change
Into all fall within the protetion scope of the claimed invention.The claimed scope of the invention is defined by the following claims.
Claims (8)
1. a kind of CFG pile heads pre-cut device, including the casing that is inserted into not solidified CFG pile concretes, slip casting are soft
Manage, be fixed at the casing tumbler on casing top and the tripod for being positioned to casing, wherein casing can
Rotate and what can be moved up and down be matched with tripod, which is characterized in that casing include be socketed in the VERTICAL TUBE of inside pipe casing with
The horizontal tube being connected to the bottom end of VERTICAL TUBE, wherein be provided with injected hole on horizontal tube, it is soft that the top of VERTICAL TUBE is communicated in slip casting
Pipe.
2. CFG pile heads pre-cut device according to claim 1, which is characterized in that it is vertical to be additionally provided with casing on casing
Transmission device, the vertical transmission device of described sleeve pipe can drive sleeve moved up and down in not solidified CFG pile concretes, it is described
The vertical transmission device of casing include the fixed plate being installed on the tripod, can rotate be fixed at the fixed plate
On toothed disc and the rack being fixed in described sleeve pipe that can dismantle, the rack be matched with the toothed disc.
3. CFG pile heads pre-cut device according to claim 1, which is characterized in that the bottom end of VERTICAL TUBE extends to set
The outside at tube bottom end is simultaneously connected to the interlude of horizontal tube, and injected hole is in be symmetrically arranged along the interlude of horizontal tube.
4. CFG pile heads pre-cut device according to claim 1, which is characterized in that the length of horizontal tube is less than CFG
Diameter.
5. a kind of construction method using CFG pile head pre-cut devices, which is characterized in that include the following steps：
Step 1：After the completion of the perfusion of CFG pile concretes, manually stake top periphery soil is carried out it is smooth, in order to formation operation platform,
Place tripod；
Step 2：Casing is matched with tripod, by horizontal tube and VERTICAL TUBE plug-in-sleeve, and by VERTICAL TUBE and slip casting hose
Connection；
Step 3：Casing inserted with VERTICAL TUBE is inserted into not solidified CFG pile concretes, CFG is demarcated using laser level
The elevation of pile head pre-cut position makes the slurry position of letting out of horizontal tube be located at the above 10-20cm of design height of pile top；
Step 4：Mud is pumped into slip casting hose using grouting pump, manual rotating casing tumbler, it is vertical in casing to make
Pipe and horizontal tube rotate together 3-5 circles with casing, and the injection rate of mud is controlled in conjunction with CFG areas of section, and injection is completed, and is closed
Close grouting pump；
Step 5：Extract the casing in CFG pile concretes；
Step 6：Wait for that CFG pile concretes solidify completely, excavate inter-pile soil, made by the way of mechanical impact CFG from mud
It is broken at injection, blocks pile crown in the position of CFG design height of pile top with cutting machine, that completes CFG pile heads blocks work
Industry.
6. the construction method according to claim 5 using CFG pile head pre-cut devices, which is characterized in that step 4
In, grout injection control valve is also associated between grouting pump and slip casting hose.
7. the construction method according to claim 5 using CFG pile head pre-cut devices, which is characterized in that in step 4
Further include the steps that configuration mud, add water to be formed with small-sized machine mixing using high plastic clay or bentonite, control mud is close
Degree is 1.1-1.3g/cm3.
8. the construction method according to claim 5 using CFG pile head pre-cut devices, which is characterized in that step 4
In, the pumping pressure of mud is 0.03-0.04Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520962.8A CN108677952A (en) | 2018-05-28 | 2018-05-28 | A kind of CFG pile heads pre-cut device and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520962.8A CN108677952A (en) | 2018-05-28 | 2018-05-28 | A kind of CFG pile heads pre-cut device and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108677952A true CN108677952A (en) | 2018-10-19 |
Family
ID=63808438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810520962.8A Pending CN108677952A (en) | 2018-05-28 | 2018-05-28 | A kind of CFG pile heads pre-cut device and its construction method |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635413A (en) * | 2022-02-25 | 2022-06-17 | 中铁二十局集团第二工程有限公司 | Pile construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271812A (en) * | 1975-12-12 | 1977-06-15 | Tsugio Yokota | Method of driving concrete pile |
| JPS57151727A (en) * | 1981-03-16 | 1982-09-18 | Takenaka Komuten Co Ltd | In-place, extra-banking concrete treatment work |
| JPS58210211A (en) * | 1982-05-31 | 1983-12-07 | Hasegawa Komuten Co Ltd | Treatment of extra-banking concrete in head of on-site concrete pile |
| JPS61191717A (en) * | 1985-02-20 | 1986-08-26 | Mitsui Constr Co Ltd | Disposing device for extra-banking concrete of cast-in-place pile |
| JPS63197715A (en) * | 1987-02-12 | 1988-08-16 | Mitsui Constr Co Ltd | Device for treating extra-concrete banking of cast-in-place pile |
| CN106930289A (en) * | 2017-03-10 | 2017-07-07 | 东南大学 | A kind of noiseless broken pile device and broken pile method |
-
2018
- 2018-05-28 CN CN201810520962.8A patent/CN108677952A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271812A (en) * | 1975-12-12 | 1977-06-15 | Tsugio Yokota | Method of driving concrete pile |
| JPS57151727A (en) * | 1981-03-16 | 1982-09-18 | Takenaka Komuten Co Ltd | In-place, extra-banking concrete treatment work |
| JPS58210211A (en) * | 1982-05-31 | 1983-12-07 | Hasegawa Komuten Co Ltd | Treatment of extra-banking concrete in head of on-site concrete pile |
| JPS61191717A (en) * | 1985-02-20 | 1986-08-26 | Mitsui Constr Co Ltd | Disposing device for extra-banking concrete of cast-in-place pile |
| JPS63197715A (en) * | 1987-02-12 | 1988-08-16 | Mitsui Constr Co Ltd | Device for treating extra-concrete banking of cast-in-place pile |
| CN106930289A (en) * | 2017-03-10 | 2017-07-07 | 东南大学 | A kind of noiseless broken pile device and broken pile method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635413A (en) * | 2022-02-25 | 2022-06-17 | 中铁二十局集团第二工程有限公司 | Pile construction method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 450001 No. 59 Lianhua street, hi tech Development Zone, Henan, Zhengzhou Applicant after: China Power Construction Eleventh Bureau Engineering Co., Ltd. Applicant after: SINOHYDRO Bureau 11 Co., Ltd. Address before: 450001 No. 59 Lianhua street, hi tech Development Zone, Henan, Zhengzhou Applicant before: China Hydropower eleventh Engineering Bureau (Zhengzhou) Co., Ltd. Applicant before: SINOHYDRO Bureau 11 Co., Ltd. |
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Application publication date: 20181019 |