CN110093916A - Rotary digging pile construction method - Google Patents
Rotary digging pile construction method Download PDFInfo
- Publication number
- CN110093916A CN110093916A CN201910346107.4A CN201910346107A CN110093916A CN 110093916 A CN110093916 A CN 110093916A CN 201910346107 A CN201910346107 A CN 201910346107A CN 110093916 A CN110093916 A CN 110093916A
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- Prior art keywords
- stake holes
- concrete
- rotary
- drilling rig
- construction method
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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
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of rotary digging pile construction methods comprising following steps: step 1, pile foundation of having good positioning hole location carries out the excavation of stake holes 2 according to production engineering specifications using rotary drilling rig 1；Step 2, rotary drilling rig depth of pore forming is 1 meter -2 meters, is manually reinforced by mortar to this depth pore-forming, and be embedded to all steel casing 3；Step 3, rotary drilling rig continues to excavate, and depth of pore forming is 2 meters -4 meters, and concrete sprayer 4 is moved to above stake holes, drives the spray head 6 in the Grouting Pipe 5 of concrete sprayer to enter in pore-forming by lifting device, and carry out gunite concrete to stake holes inner wall；Step 4, start lifting device hoisting grouting pipe, stake holes is continued to deep-cut after concrete setting, then through rotary drilling rig, repeat step 3, until reaching boring requirement depth.The present invention has the effect of conveniently reinforcing stake holes after molding.
Description
Technical field
The present invention relates to technical field of building construction more particularly to rotary digging pile construction methods.
Background technique
Rotary digging stake refers to the hole to be formed stake of constructing by Spiral digging machine, and Spiral digging machine passes through bottom with valve first when construction
Barrel type drill bit turns round broken ground, and directly broken ground is packed into drilling bucket, is then bored again by drilling machine lifting device with flexible
Drill bit is proposed that hole stake outer tiltedly soil, such reciprocation cycle constantly take soil to unload soil by bar, until drilling to completion.Rotary digging stake is
It is widely used in the fields such as highway, railway, bridge and heavy construction.For the good rock-soil layer of cementability, dry type or clear can be used
Water drilling process needs to pass through mud off without mud off when the area thicker in some underground soft layers, sand gravel layer.
But when underground soil property is the soil properties such as the biggish boulder bed in gap, backfill metalling, mud off is difficult to realize, and dry pore-forming is normal
It often will appear collapse hole phenomenon, and it is too many to do casing cost with steel pipe, and the duration increases excessively.
In the construction process, it often will appear collapsing for pile lining loose soil bed, the part soil of rippers layer falls into stake holes bottom
Concrete pile body in portion or concrete and after solidification exists, and reduces the quality of concrete pile body, makes the bearing capacity of pile foundation
It reduces, brings great potential safety hazard.
Summary of the invention
The purpose of the present invention is to provide a kind of rotary digging pile construction methods, excellent with conveniently reinforcing to stake holes after molding
Point.
Above-mentioned purpose of the invention has the technical scheme that
A kind of rotary digging pile construction method, comprising the following steps:
Step 1, pile foundation of having good positioning hole location carries out the excavation of stake holes according to production engineering specifications using rotary drilling rig；
Step 2, rotary drilling rig depth of pore forming is 1 meter -2 meters, is manually reinforced by mortar to this depth pore-forming, and is embedded to complete
Steel pile casting；
Step 3, rotary drilling rig continues to excavate, and depth of pore forming is 2 meters -4 meters, and concrete sprayer is moved to above stake holes, is passed through
Lifting device drives the spray head in the Grouting Pipe of the concrete sprayer to enter in pore-forming, and it is mixed to carry out injection to stake holes inner wall
Solidifying soil；
Step 4, start lifting device hoisting grouting pipe, stake holes continued to deep-cut after concrete setting, then through rotary drilling rig,
Step 3 is repeated, until reaching boring requirement depth.
Implement above-mentioned technical proposal, by rotary drilling rig borehole to 1 meter -2 meters, then after embedded all steel casing progress retaining wall,
Lower digging is continued by rotary drilling rig again, depth of pore forming is 2 meters -4 meters, at this point, drilling rod is promoted, by the Grouting Pipe of concrete sprayer
Spray head be fixed on lifting device, by lifting device drive spray head enter below all steel casing of stake holes pile lining is sprayed it is mixed
Solidifying soil, reinforces stake holes inner wall, can save a large amount of economic cost compared to embedded all steel casing is continued, to be sprayed
After concrete setting, then continued after deep-cutting 1 meter -2 meters by rotary drilling rig, then stake holes inner wall is sprayed by concrete sprayer
Concrete so recycles, and the concrete of concrete sprayer injection can reinforce the inner wall of one section every dozen of stake holes, mentions
When the stability for the stake holes that height is constantly deepened, especially piling enter the soil properties such as boulder bed and rippers layer evacuation geological stratification, injection
Concrete can reduce falling for soil, have the advantages that convenient to reinforce stake holes after molding.
The present invention is further arranged to, and lifting device is the drilling rod of rotary drilling rig in step 3, and the spray head of the Grouting Pipe can
Dismantling connection is in one end of the disassembly drill bit of the drilling rod.
Implement above-mentioned technical proposal, lifting device is the drilling rod of rotary drilling rig, carries out excavation 1 to stake holes to rotary drilling rig
After -2 meters of rice, after being elevated drill bit by drilling rod, drill bit is dismantled, while one end of drill bit disassembly finishing drilling head being pacified
The spray head of Grouting Pipe is loaded onto, then is brought into stake holes by general who has surrendered's spray head under drilling rod, is dropped in stake holes and needs gunite concrete
Depth, restart concrete sprayer, concrete passes through spray head by Grouting Pipe again and uniformly sprays to the wall surface of stake holes, injection
After the completion, then by drilling rod to spray head be promoted to outside stake holes, and spray head is dismantled, then drill bit is re-installed in brill
On bar, after concrete setting, rotary drilling rig, which works on, deep-cuts stake holes, and spray head is directly installed to the side to drilling rod
Formula does not need to add lifting device outside when to stake holes gunite concrete, cost has been saved, because drilling rod is aligned before construction
Stake holes, so when carrying out gunite concrete, it is very convenient without being positioned again.
The present invention is further arranged to, and the spray head in step 3 is circumferentially provided at least two in the outer surface of the drilling rod.
Implement above-mentioned technical proposal, spray head is provided at least two, and spray head can be made to enter stake under the drive of drilling
Kong Hou, multiple spray heads can uniformly spray stake holes, reduce the region not being injected into, improve the stability of stake holes.
The present invention is further arranged to, and is inserted with the support rod for being used to support the Grouting Pipe above the stake holes.
Implement above-mentioned technical proposal, by being provided with support rod, drives the process of spray head and Grouting Pipe decline in drilling rod
In, support rod, to support, reduces it and generates friction with stake holes during rise and fall, influence the shape of stake holes to Grouting Pipe
At.
The present invention is further arranged to, and the upper surface of the support rod is rotatably connected to for abutting with the Grouting Pipe
Idler wheel.
Implement above-mentioned technical proposal, by being provided with idler wheel so that Grouting Pipe under the drive of drilling, carry out rise and under
During drop, the sliding friction of Grouting Pipe and support rod upper surface is changed into rolling friction, slows down the abrasion of Grouting Pipe.
The present invention is further arranged to, and in step 4, is provided with air-heater above the stake holes, by air-heater to stake holes
Interior logical hot wind.
Implement above-mentioned technical proposal, by being provided with air-heater, after having sprayed concrete to stake holes, start air-heater,
It is passed through hot wind into stake holes, accelerates the concrete setting being injected on stake holes inner wall, shortens the setting time of concrete, and then contract
The short construction period.
The present invention is further arranged to, and the drilling rod is equipped with wireless monitor and headlamp above the spray head.
Implement above-mentioned technical proposal, by being provided with wireless monitor and headlamp, while spray head is installed on drilling rod
Wireless monitor and headlamp are installed together, during spraying stake holes, start headlamp and wireless monitor,
Construction personnel monitors stake holes inner wall situation in real time by wireless monitor under conditions of headlamp illuminates, first is that
The position that concrete is sprayed in stake holes can be found accurately, second is that the feelings that concrete is sprayed in stake holes can be observed
Condition.
The present invention is further arranged to, and the outer surface of the drilling rod is removably connected with sleeve, the wireless monitor and
Headlamp is installed circumferentially on the sleeve, and the wireless monitor and the headlamp are in being respectively provided at least two on the sleeve
It is a.
Implement above-mentioned technical proposal, by being provided with sleeve, can need every time headlamp and wireless monitor when
It waits, sleeve is quick installed on drilling rod, at least two headlamps and at least two wireless monitors are installed on sleeve, are subtracted
The position not being monitored in few stake holes.
In conclusion the invention has the following advantages:
One, a large amount of economic cost can be saved compared to continuing embedded all steel casing, after concrete setting to be sprayed, then led to
It crosses rotary drilling rig to continue after deep-cutting 1 meter -2 meters, then stake holes inner wall gunite concrete is so recycled by concrete sprayer,
The concrete of concrete sprayer injection can reinforce the inner wall of one section every dozen of stake holes, improve the stake holes constantly deepened
Stability, when especially piling enters the soil properties evacuation geological stratification such as boulder bed and rippers layer, the concrete of injection can be reduced
Soil is fallen, and it is convenient to stake holes after molding reinforcing to have the advantages that;
Two, spray head is directly installed into the mode to drilling rod, does not need to add lifting device outside when to stake holes gunite concrete, section
About cost, because drilling rod has been directed at stake holes before construction, when carrying out gunite concrete, without being determined again
Position, it is very convenient；
Three, by being provided with air-heater, after having sprayed concrete to stake holes, start air-heater, hot wind is passed through into stake holes, is added
The concrete setting being injected on stake holes inner wall fastly shortens the setting time of concrete, and then shortens the construction period；
Four, by being provided with wireless monitor and headlamp, by wireless monitor and illumination while installing spray head on drilling rod
Lamp is installed together, during spraying stake holes, starts headlamp and wireless monitor, construction personnel headlamp into
Stake holes inner wall situation is monitored in real time by wireless monitor under conditions of row illumination, first is that concrete can be found accurately in stake
The position sprayed in hole, second is that the case where concrete is sprayed in stake holes can be observed.
Detailed description of the invention
Fig. 1 is the status diagram before concrete sprayer gunite concrete of the embodiment of the present invention；
Fig. 2 is the portion the A enlarged drawing in Fig. 1.
Appended drawing reference: 1, rotary drilling rig；2, stake holes；3, all steel casing；4, concrete sprayer；5, Grouting Pipe；6, spray head；
7, drilling rod；8, support rod；9, idler wheel；10, air-heater；11, wireless monitor；12, headlamp；13, sleeve.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the embodiment of the present invention is described.
Embodiment
Rotary drilling rig 1 is located at 2 side of stake holes combined with Figure 1 and Figure 2, and the drilling rod 7 of rotary drilling rig 1 is directed at stake holes 2, stake holes 2
1 meter -2 meters of depth is embedded with all steel casing 3, carries out retaining wall to the tapping of stake holes 2.Concrete sprayer 4 is located at stake holes 2
The other side, concrete sprayer 4 includes Grouting Pipe 5 and spray head 6, and Grouting Pipe 5 is connected with the body of concrete sprayer 4,
The other end of Grouting Pipe 5 is connected with spray head 6.Spray head 6 is set as six, and Grouting Pipe 5 and the junction of spray head 6 are provided with circumference
Pipe, six spray heads 6 are connected to peripheral tubes respectively, and are uniformly arranged in peripheral tubes, and six spray heads 6 are in the same plane.Circle
All pipe outer rings are provided with magnet, and peripheral tubes are fixed on the outer wall of drilling rod 7 by magnet.
It is plugged on the ground between concrete sprayer 4 and stake holes 2 combined with Figure 1 and Figure 2, and is used to support Grouting Pipe 5
Support rod 8, the upper surface of support rod 8 is rotatably connected to the idler wheel 9 for abutting with Grouting Pipe 5.The outer surface of drilling rod 7 is in spray
Bolt is fixed with sleeve 13 on drilling rod 7 above first 6 installation site, is distinguished there are four circumferential uniform intervals settings on sleeve 13
Wireless monitor 11 and four headlamps 12, a wireless monitor 11 and a headlamp 12 are disposed adjacent, and are matched.
The top of stake holes 2 is provided with air-heater 10, and air-heater 10 is entered in stake holes 2 by ventilation duct, and in concrete ejection in stake holes 2
After on inner wall, it is passed through hot wind into stake holes 2, accelerates the solidification of concrete.
A kind of rotary digging pile construction method, the steps include:
Step 1, smooth to working space progress, rotary drilling rig 1 and concrete sprayer 4 is mobile in place, pass through total station, water
The instruments such as quasi- instrument are had good positioning after stake holes 2, then are excavated by the drill bit of rotary drilling rig 1 to stake holes 2；
Step 2, after the depth of pore forming of rotary drilling rig 1 is 1 meter -2 meters, is risen by the drilling rod 7 of rotary drilling rig 1 and drill bit is removed into stake
Hole 2 is reinforced in stake holes 2 of the spray furnace to this depth, and rotary drilling rig 1 installs casing driver, promotes all steel casing 3,
And be directed at stake holes 2, by the decline of drilling rod 7 into stake holes 2 lower section and all steel casing 3 is installed so that being embedded in the casing of stake holes 2
0.3 meter above ground level, and in the surrounding of casing backfill clay and compaction in layers；
Step 3, then by rotary drilling rig 1 stake holes 2 is continued to excavate, according to 1 meter -2 meters need to be excavated, promotes drilling rod 7, by drill bit from brill
It is disassembled on bar 7, and the peripheral tubes of spray head 6 and 5 junction of Grouting Pipe is fixed on drilling rod 7 by magnet and disassemble drill bit
One end.The sleeve 13 for installing wireless monitor 11 and headlamp 12 is bolted on the outer surface of drilling rod 7 again, and is located
In the top of spray head 6；
Step 4, start wireless monitor 11 and headlamp 12, by decline of the drilling rod 7 in stake holes 2, drive spray head 6 to stake holes
The position to need reinforcement in 2, and start concrete sprayer 4, concrete is uniformly sprayed extremely by spray head 6 again by Grouting Pipe 5
The wall surface of stake holes 2, in the process, under conditions of headlamp 12 illuminates, construction personnel observes stake by wireless monitor 11
The case where inner wall and gunite concrete in hole 2, after the completion of concrete ejection, then by the promotion of drill bit, spray head 6 is promoted
It is dismantled to outside stake holes 2, and to spray head 6 and sleeve 13, and reinstalls upper drill bit on drill bit, meanwhile, because being rotary digging
1 one sections of one section of excavations of drilling machine, after the concrete of injection falls to 2 bottom of stake holes, can continue the process deep-cut in rotary drilling rig 1
In take stake holes 2 out of；
Step 5, start air-heater 10, air-heater 10 leads to hot wind into stake holes 2 by ventilation duct, and quickening is injected in 2 inner wall of stake holes
On concrete setting, solidified substantially to concrete (- 5 hours about 4 hours), then stake holes 2 is continued to dig by rotary drilling rig 1
Pick, during concrete setting, rotary drilling rig 1 can be excavated the drilling of another location；
Step 6, step 2 is repeated to 5, until reaching the predetermined depth of stake holes 2.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of rotary digging pile construction method, which comprises the following steps:
Step 1, pile foundation of having good positioning hole location carries out the excavation of stake holes (2) according to production engineering specifications using rotary drilling rig (1)；
Step 2, rotary drilling rig (1) depth of pore forming is 1 meter -2 meters, is manually reinforced by mortar to this depth pore-forming, and bury
Enter all steel casing (3)；
Step 3, rotary drilling rig (1) continues to excavate, and depth of pore forming is 2 meters -4 meters, and concrete sprayer (4) is moved to stake holes (2)
Top drives the spray head (6) in the Grouting Pipe (5) of the concrete sprayer (4) to enter in pore-forming by lifting device, and right
Stake holes (2) inner wall carries out gunite concrete；
Step 4, start lifting device hoisting grouting pipe (5), after concrete setting, then by rotary drilling rig (1) to stake holes (2)
Continue to deep-cut, repeat step 3, until reaching boring requirement depth.
2. rotary digging pile construction method according to claim 1, which is characterized in that lifting device is rotary drilling rig in step 3
(1) drilling rod (7), the spray head (6) of the Grouting Pipe (5) are detachably connected on one end of the disassembly drill bit of the drilling rod (7).
3. rotary digging pile construction method according to claim 2, which is characterized in that the spray head (6) in step 3 is in drilling rod (7)
Outer surface be circumferentially provided at least two.
4. rotary digging pile construction method according to claim 1, which is characterized in that be inserted with and be used for above the stake holes (2)
Support the support rod (8) of the Grouting Pipe (5).
5. rotary digging pile construction method according to claim 4, which is characterized in that the upper surface of the support rod (8) rotates
It is connected with the idler wheel (9) for abutting with the Grouting Pipe (5).
6. rotary digging pile construction method according to claim 1, which is characterized in that in step 4, set above the stake holes (2)
Air-heater (10) are equipped with, hot wind is led into stake holes (2) by air-heater (10).
7. rotary digging pile construction method according to claim 2, which is characterized in that drilling rod (7) the Yu Suoshu spray head (6)
Top is equipped with wireless monitor (11) and headlamp (12).
8. rotary digging pile construction method according to claim 7, which is characterized in that the outer surface of the drilling rod (7) is detachable
It is connected with sleeve (13), the wireless monitor (11) and headlamp (12) are installed circumferentially on the sleeve (13), the nothing
At least two are respectively provided on line monitor (11) and the headlamp (12) Yu Suoshu sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346107.4A CN110093916A (en) | 2019-04-26 | 2019-04-26 | Rotary digging pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346107.4A CN110093916A (en) | 2019-04-26 | 2019-04-26 | Rotary digging pile construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110093916A true CN110093916A (en) | 2019-08-06 |
Family
ID=67446073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910346107.4A Pending CN110093916A (en) | 2019-04-26 | 2019-04-26 | Rotary digging pile construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110093916A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149450A (en) * | 2020-01-17 | 2020-05-15 | 中国科学院遗传与发育生物学研究所 | Device for improving water conservation capacity of earth-rockwork area by utilizing chaste tree twig shrubs |
| CN111794205A (en) * | 2020-07-04 | 2020-10-20 | 四川航天建筑工程有限公司 | Anti-collapse rotary digging pile construction device and construction method thereof |
| CN112647953A (en) * | 2020-12-25 | 2021-04-13 | 北京易成市政工程有限责任公司 | Concrete spraying frame for shaft construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2097489C1 (en) * | 1996-03-04 | 1997-11-27 | Александр Юрьевич Смирнов | Process of placing concrete into cast-in-place piles and installation for its implementation |
| CN101191405A (en) * | 2006-11-28 | 2008-06-04 | 佟功喜 | Rotary digging drilling machine jet flow reverse circulation rock drilling technique |
| CN108149682A (en) * | 2018-02-05 | 2018-06-12 | 北京城建八建设发展有限责任公司 | A kind of slip casting casing device and the pile foundation drilling construction method using the casing device |
| CN109537616A (en) * | 2018-11-26 | 2019-03-29 | 广西万科企业管理有限公司 | A kind of the CFG stake device and its construction method of spiral-digging pore |
-
2019
- 2019-04-26 CN CN201910346107.4A patent/CN110093916A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2097489C1 (en) * | 1996-03-04 | 1997-11-27 | Александр Юрьевич Смирнов | Process of placing concrete into cast-in-place piles and installation for its implementation |
| CN101191405A (en) * | 2006-11-28 | 2008-06-04 | 佟功喜 | Rotary digging drilling machine jet flow reverse circulation rock drilling technique |
| CN108149682A (en) * | 2018-02-05 | 2018-06-12 | 北京城建八建设发展有限责任公司 | A kind of slip casting casing device and the pile foundation drilling construction method using the casing device |
| CN109537616A (en) * | 2018-11-26 | 2019-03-29 | 广西万科企业管理有限公司 | A kind of the CFG stake device and its construction method of spiral-digging pore |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149450A (en) * | 2020-01-17 | 2020-05-15 | 中国科学院遗传与发育生物学研究所 | Device for improving water conservation capacity of earth-rockwork area by utilizing chaste tree twig shrubs |
| CN111149450B (en) * | 2020-01-17 | 2021-03-30 | 中国科学院遗传与发育生物学研究所 | Device for improving water conservation capacity of earth-rockwork area by utilizing chaste tree twig shrubs |
| CN111794205A (en) * | 2020-07-04 | 2020-10-20 | 四川航天建筑工程有限公司 | Anti-collapse rotary digging pile construction device and construction method thereof |
| CN112647953A (en) * | 2020-12-25 | 2021-04-13 | 北京易成市政工程有限责任公司 | Concrete spraying frame for shaft construction |
| CN112647953B (en) * | 2020-12-25 | 2023-03-14 | 北京易成市政工程有限责任公司 | Concrete spraying frame for shaft construction |
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Application publication date: 20190806 |
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