CN110374099A - A kind of factory building pile foundation and the factory building piling technique using the pile foundation - Google Patents
A kind of factory building pile foundation and the factory building piling technique using the pile foundation Download PDFInfo
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- CN110374099A CN110374099A CN201910657689.8A CN201910657689A CN110374099A CN 110374099 A CN110374099 A CN 110374099A CN 201910657689 A CN201910657689 A CN 201910657689A CN 110374099 A CN110374099 A CN 110374099A
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- 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
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses the factory building piling techniques of a kind of factory building pile foundation and the application pile foundation, it is related to the technical field of pile foundation construction, solve the problems, such as that existing pile foundation bearing capacity is low, its key points of the technical solution are that pile foundation includes pile foundation ontology, pile top and connecting tube；Connection bottom of the tube is provided with connecting hole, and connecting hole bottom is provided with dispersion hole, and dispersion hole bottom is provided with annular groove, and annular groove bottom is provided with several fumaroles；Piling technique includes: a. true fixed pile；B. land clearing；C. stake machine is in place；D. steady stake and piling；E. high pressure gas chesson；F. grout pouring；It is sprayed in the fumarole that high pressure gas passes through pile foundation bottom surrounding, it loosens the soil to the soil close to pile foundation bottom, in the gap for soil slurries being sent near pile foundation bottom by fumarole, so that will increase the contact area of pile foundation bottom and ground basal part after cement grout solidification, the bearing capacity of pile foundation is improved.
Description
Technical field
The present invention relates to the technical fields of pile foundation construction, more specifically, it is related to a kind of factory building pile foundation and answers
With the factory building piling technique of the pile foundation.
Background technique
Factory building is built directly on ground, needs to bear very big pressure so as to cause ground, but often
Face pressure bearing capacity be all it is poor, in order to guarantee the stability of factory building, generally require to ground carry out
The receiving mode that ground faces pressure is reinforced or improves, the most common mode is exactly driven piles on ground, but existing piling
Mode is only merely directly to be driven into prefabricated pile foundation in ground, in pile foundation under same diameter, pile foundation bottom to ground basal part into
The area of row pressure conduction is smaller, and the bearing capacity so as to cause pile foundation is lower, so as to cause the building built up in pile foundation
Workshop stability is poor, has some potential safety problems.
Summary of the invention
It should in view of the deficiencies of the prior art, the present invention intends to provide a kind of factory building pile foundation and application
Connecting tube is first connected, high pressure gas passes through stake by pile foundation after pile foundation is driven into ground with high pressure gas station
Spray in the fumarole of basal part surrounding, loosen the soil to close to the soil of pile foundation bottom, after completion of loosening the soil, by connecting tube with
Grouting pump is connected, and cement grout is injected into annular groove, and slurries are sent near pile foundation bottom by fumarole
Soil gap in so that cement grout solidification after will increase pile foundation bottom and ground basal part contact area,
To increase the pressure conduction area between pile foundation bottom and ground, the bearing capacity of pile foundation is improved, so that factory building
Stability improve, reduce security risk.
To achieve the above object, the present invention provides the following technical scheme that a kind of factory building pile foundation and apply the stake
Basis, pile foundation ontology including cylindrical setting are fixedly connected on the pile top of pile foundation body bottom portion and are fixedly connected on stake
The connecting tube of basic body top center position；
Open up fluted at the top of pile foundation ontology, in the grooves, height at the top of connecting tube is lower than groove top for connecting tube
Highly；
Connection bottom of the tube is provided with the connecting hole for being provided in pile foundation ontology and being interconnected with connecting tube, and connecting hole bottom is set
It is equipped with and is provided in pile foundation ontology and the dispersion hole of setting in the form of annular discs, be provided with and open up at the periphery of dispersion hole bottom side
On pile foundation ontology and the annular groove of cylindrical setting, it is provided on the periphery of annular groove bottom outward through pile foundation ontology
Several fumaroles.
By using above-mentioned technical proposal, after pile foundation is driven into ground, first by connecting tube and high pressure gas station phase
Even, it is sprayed in the fumarole that high pressure gas passes through pile foundation bottom surrounding, loosens the soil, loosened the soil to the soil close to pile foundation bottom
At later, connecting tube is connected with grouting pump, cement grout is injected into annular groove, and is sent slurries by fumarole
Enter in the gap of the soil near pile foundation bottom, so that will increase pile foundation bottom and ground after cement grout solidification
The contact area of bottom improves the carrying energy of pile foundation to increase the pressure conduction area between pile foundation bottom and ground
Power reduces security risk so that the stability of factory building improves.
The present invention is further arranged to: be provided at the top of the pile foundation ontology it is in the form of annular discs setting and with pile foundation ontology
Coaxial backing plate.
By using above-mentioned technical proposal, can prevent from causing connecting tube when being driven piles by the way that backing plate is arranged
Damage.
The present invention is further arranged to: the backing plate bottom is fixedly connected with the annular slab being inserted into groove, annular slab
Outside and the side of groove contact with each other.
By using above-mentioned technical proposal, it can prevent backing plate from sliding in the process of piling by the way that annular slab is arranged
It is dynamic.
The present invention is further arranged to: the groove top surrounding, which is provided with, to be provided with along the vertical direction on pile foundation ontology
Mating groove is provided with the coordinating block for cooperating and being fixedly connected on annular slab periphery with mating groove in mating groove.
By using above-mentioned technical proposal, by setting coordinating block and mating groove, it can prevent backing plate from driving piles
It rotates in process.
The present invention is further arranged to: being offered and several is allowed correspondingly on the periphery of the pile foundation ontology with fumarole
Position slot, fumarole are located in recessing groove, baffle are provided in recessing groove, baffle two sides are fixedly connected with two close to the position of bottom
It extend into the shaft in pile foundation ontology and with the rotation connection of pile foundation ontology.
By using above-mentioned technical proposal, by the way that baffle is arranged, in the process driven piles, baffle can be in soil
Fumarole is sheltered under effect, prevents soil from entering in fumarole, when being loosened the soil, in the effect of high pressure gas
Under, it is turned out at the top of baffle, the ejection of high pressure gas will not be caused to stop.
Another object of the present invention with a kind of factory building piling technique is provided, using the construction technology pile foundation with
Pressure conduction area between ground increases, and improves the bearing capacity of pile foundation, the technique the following steps are included:
A. true fixed pile: label is measured by the position that measurement needs to drive piles on the ground；
B. it land clearing: before being driven piles, needs land clearing is clean；
C. stake machine is in place: stake machine being moved to the position driven piles, and makes a machine vertical, by the lockset of lifting
Etc. fixed equipments fix, lift by crane pile foundation ontology so that pile top position alignment stake position center, then slowly puts pile foundation ontology
In burying, backing plate is then lifted into pile foundation bodies top, so that coordinating block is embedded into mating groove, and makes annular slab
It contacts with each other on the outside of outside and groove；
D. steady stake and piling: pile top is inserted into after stake position, is first driven piles with lesser cold-hammer, is vertically stablized to pile foundation ontology
And then use is dropped hammer piling, is driven piles by the way of heavy hammer and low strike when piling；
E. high pressure gas chesson: after piling finish, backing plate being sling, connecting tube is then connected to high pressure gas station, is led to
Excessively high compressor station is sent into high pressure gas to pile foundation ontology in the middle；
F. it grout pouring: loosens the soil and connecting tube is connected on grouting pump after finishing, be pumped into cement grout by grouting pump
It is pumped into the gap of the loose soil finished into annular groove and through fumarole, the grouting pressure control of grouting pump exists
20Mpa~30Mpa, slip casting time control in 5min~10min.
By using above-mentioned technical proposal, after pile foundation is driven into ground, first by connecting tube and high pressure gas station phase
Even, it is sprayed in the fumarole that high pressure gas passes through pile foundation bottom surrounding, loosens the soil, loosened the soil to the soil close to pile foundation bottom
At later, connecting tube is connected with grouting pump, cement grout is injected into annular groove, and is sent slurries by fumarole
Enter in the gap of the soil near pile foundation bottom, so that will increase pile foundation bottom and ground after cement grout solidification
The contact area of bottom improves the carrying energy of pile foundation to increase the pressure conduction area between pile foundation bottom and ground
Power reduces security risk so that the stability of factory building improves.
The present invention is further arranged to: in the step b, needing to carry out surveying work to the place of construction, by aerial electricity
The facility that the obstruction such as line, underground power lines, water supply and sewerage pipeline construction and degree construction safety operation impact all first is purged
And displacement, subsequent construction is then carried out again.
By using above-mentioned technical proposal, the place of construction is carried out surveying work, by trolley wire, underground power lines, is given
The facility that the obstruction such as drainage pipeline construction and degree construction safety operation impact all first is purged and shifts, and can prevent
Occurs security risk in the process of construction.
The present invention is further arranged to: in the step e, the pressure control for the gas that high pressure gas station is sent into is big at 2.5 times
Air pressure is to the time control between 3 times of atmospheric pressure, loosened the soil in 10min~15min.
By using above-mentioned technical proposal, by the time for controlling the pressure of high pressure gas and loosening the soil, can either complete pair
Soil loosens the soil, additionally it is possible to prevent air pressure is excessively high from causing to damage to pile foundation.
In conclusion the present invention has the advantages that compared with the prior art
1, the present invention is by setting connecting tube and fumarole, after pile foundation is driven into ground, first by connecting tube and high pressure
Gas station is connected, and sprays in the fumarole that high pressure gas passes through pile foundation bottom surrounding, loosens the soil to the soil close to pile foundation bottom,
It loosens the soil after completion, connecting tube is connected with grouting pump, cement grout is injected into annular groove, and will by fumarole
Slurries are sent in the gap of the soil near pile foundation bottom, so that will increase pile foundation bottom after cement grout solidification
Pile foundation is improved to increase the pressure conduction area between pile foundation bottom and ground with the contact area of ground basal part
Bearing capacity reduces security risk so that the stability of factory building improves；
2, the present invention is by setting recessing groove and baffle, in the process driven piles, baffle can under the action of soil incite somebody to action
Fumarole shelters from, and prevents soil from entering in fumarole, when being loosened the soil, under the action of high pressure gas, and baffle
Top be turned out, the ejection of high pressure gas will not be caused to stop.
Detailed description of the invention
Fig. 1 is the axonometric drawing of the complete structure of embodiment one；
Fig. 2 is the axonometric drawing that embodiment one embodies connecting tube；
Fig. 3 is the pile foundation ontology of embodiment one and the cross-sectional view of pile top；
Fig. 4 is the explosive view that embodiment one embodies baffle；
Fig. 5 is the axonometric drawing of the backing plate of embodiment one
Fig. 6 is the portion the A enlarged diagram of Fig. 4.
In figure: 1, pile foundation ontology；2, pile top；3, backing plate；31, annular slab；32, coordinating block；4, connecting tube；11, groove；
111, mating groove；12, connecting hole；13, dispersion hole；14, annular groove；15, fumarole；16, recessing groove；5, baffle；51, shaft.
Specific embodiment
Embodiment one: a kind of factory building pile foundation, it is pile foundation ontology 1 including cylindrical setting, solid referring to attached drawing 1
Surely it is connected to the pile top 2 of 1 bottom of pile foundation ontology and is fixedly connected on the connecting tube 4 of 1 top center position of pile foundation ontology；Pile top
2 in it is coniform setting and it is coaxial with pile foundation ontology 1, the corner of pile top 2 be located at pile top 2 deviate from 1 side of pile foundation ontology；Connection
Pipe 4 and pile foundation ontology 1 are coaxially disposed.
Referring to attached drawing 2 and attached drawing 3, the top of pile foundation ontology 1 opens up fluted 11, and connecting tube 4 is located in groove 11, connection
Height of the height at 4 top of pipe lower than 11 top of groove；Groove 11 it is rounded setting and groove 11 coaxially set with connecting tube 4
It sets；4 bottom of connecting tube is provided with the connecting hole 12 for being provided in pile foundation ontology 1 and being interconnected with connecting tube 4, connecting hole 12
Bottom, which is provided with, to be provided in pile foundation ontology 1 and the dispersion hole 13 of setting in the form of annular discs, the periphery of 13 bottom side of dispersion hole
Place, which is provided with, to be provided on pile foundation ontology 1 and the annular groove 14 of cylindrical setting, is arranged on the periphery of 14 bottom of annular groove
There are several fumaroles 15 for running through pile foundation ontology 1 outward；Dispersion hole 13 and annular groove 14 and pile foundation ontology 1 are coaxially disposed.It will
After pile foundation and pile top 2 are squeezed into ground, connecting tube 4 is connect with high pressure gas station, high pressure gas passes through pile foundation bottom four
It sprays, loosens the soil to the soil close to pile foundation bottom, after completion of loosening the soil, by connecting tube 4 and slip casting in the fumarole 15 in week
Pump is connected, and cement grout is injected into annular groove 14, and slurries are sent near pile foundation bottom by fumarole 15
Soil gap in, band cement grout solidification after, increase pile foundation ontology 1 and ground basal part contact area.
Referring to attached drawing 4 and attached drawing 5, the bottom of backing plate 3 is fixedly connected with the annular slab 31 of setting annular in shape, annular slab 31
Outer diameter be equal to the diameter of groove 11, annular slab 31 and groove 11 are coaxially disposed.11 top surrounding of groove is provided with along vertical side
To the mating groove 111 being provided on pile foundation ontology 1, the periphery of annular slab 31 is fixedly connected with one-to-one with mating groove 111
Coordinating block 32, coordinating block 32 cooperate with corresponding mating groove 111.First annular slab 31 and coordinating block 32 are inserted respectively when piling
Enter into groove 11 and mating groove 111, then drive piles again, prevents that connecting tube 4 is caused to damage in the process of piling.
Referring to attached drawing 4 and attached drawing 6, several and fumarole 15 is offered on the periphery of pile foundation ontology 1 and is stepped down correspondingly
Slot 16, fumarole 15 are located in recessing groove 16, and baffle 5 is provided in recessing groove 16, and 5 two sides of baffle are fixed close to the position of bottom
It is connected with two shafts 51 for extending into pile foundation ontology 1 and being rotatablely connected with pile foundation ontology 1.Baffle 5 in the process of piling
It is embedded into recessing groove 16 under the action of soil, so that baffle 5 blocks fumarole 15, prevents soil from entering jet
In hole 15；When jet, the top of baffle 5 faces away from the direction of fumarole 15 under the action of high pressure gas, so that
Baffle 5 will not interfere the ejection of high pressure gas.
The factory building pile foundation carry out using when working principle it is as follows: pile foundation and pile top 2 are squeezed into ground and worked as
In after, connecting tube 4 is connect with high pressure gas station, high pressure gas in the fumarole 15 of pile foundation bottom surrounding by spraying, to leaning on
The soil of nearly pile foundation bottom loosens the soil, and after completion of loosening the soil, connecting tube 4 is connected with grouting pump, cement grout is injected
Into annular groove 14, and in the gap for soil slurries being sent near pile foundation bottom by fumarole 15, band cement
After grout cures, the contact area of pile foundation ontology 1 and ground basal part is increased.
Embodiment two: a kind of factory building piling is easy, comprising the following steps:
A. true fixed pile: label is measured by the position that measurement needs to drive piles on the ground；
B. land clearing: before being driven piles, need land clearing is clean, and need the place of construction is surveyed
Work, the obstruction such as trolley wire, underground power lines, water supply and sewerage pipeline, which are constructed, and spend construction safety operates the facility impacted
It is all first purged and shifts, then carry out subsequent construction again；
C. stake machine is in place: stake machine being moved to the position driven piles, and makes a machine vertical, by the lockset of lifting
Etc. fixed equipments fix, pile foundation ontology 1 is lifted by crane, so that 2 position alignment stake position center of pile top, then slowly by pile foundation ontology
1 is put into soil, and backing plate 3 is then lifted into 1 top of pile foundation ontology, so that coordinating block 32 is embedded into mating groove 111, and
So that the outside of annular slab 31 with contact with each other on the outside of groove 11；
D. steady stake and piling: pile top 2 is inserted into after stake position, is first driven piles with lesser cold-hammer, vertical steady to pile foundation ontology 1
Fixed and then use is dropped hammer piling, is driven piles by the way of heavy hammer and low strike when piling；
E. high pressure gas chesson: after piling finish, backing plate 3 being sling, connecting tube 4 is then connected to high pressure gas station,
By high pressure gas station to feeding high pressure gas in pile foundation ontology 1, the pressure control for the gas that high pressure gas station is sent into is big at 2.5 times
Air pressure, the time loosened the soil control in 10min；
F. it grout pouring: loosens the soil and connecting tube 4 is connected on grouting pump after finishing, be pumped into cement grout by grouting pump
It is pumped into the gap of the loose soil finished into annular groove 14 and through fumarole 15, the grouting pressure control of grouting pump
System is controlled in 20Mpa, slip casting time in 5min.
Embodiment three: a kind of factory building piling is easy, comprising the following steps:
A. true fixed pile: label is measured by the position that measurement needs to drive piles on the ground；
B. land clearing: before being driven piles, need land clearing is clean, and need the place of construction is surveyed
Work, the obstruction such as trolley wire, underground power lines, water supply and sewerage pipeline, which are constructed, and spend construction safety operates the facility impacted
It is all first purged and shifts, then carry out subsequent construction again；
C. stake machine is in place: stake machine being moved to the position driven piles, and makes a machine vertical, by the lockset of lifting
Etc. fixed equipments fix, pile foundation ontology 1 is lifted by crane, so that 2 position alignment stake position center of pile top, then slowly by pile foundation ontology
1 is put into soil, and backing plate 3 is then lifted into 1 top of pile foundation ontology, so that coordinating block 32 is embedded into mating groove 111, and
So that the outside of annular slab 31 with contact with each other on the outside of groove 11；
D. steady stake and piling: pile top 2 is inserted into after stake position, is first driven piles with lesser cold-hammer, vertical steady to pile foundation ontology 1
Fixed and then use is dropped hammer piling, is driven piles by the way of heavy hammer and low strike when piling；
E. high pressure gas chesson: after piling finish, backing plate 3 being sling, connecting tube 4 is then connected to high pressure gas station,
By high pressure gas station to feeding high pressure gas in pile foundation ontology 1, the pressure for the gas that high pressure gas station is sent into is controlled at 2.75 times
Atmospheric pressure, the time loosened the soil control in 12.5min；
F. it grout pouring: loosens the soil and connecting tube 4 is connected on grouting pump after finishing, be pumped into cement grout by grouting pump
It is pumped into the gap of the loose soil finished into annular groove 14 and through fumarole 15, the grouting pressure control of grouting pump
System is controlled in 25Mpa, slip casting time in 7.5min.
Example IV: a kind of factory building piling is easy, comprising the following steps:
A. true fixed pile: label is measured by the position that measurement needs to drive piles on the ground；
B. land clearing: before being driven piles, need land clearing is clean, and need the place of construction is surveyed
Work, the obstruction such as trolley wire, underground power lines, water supply and sewerage pipeline, which are constructed, and spend construction safety operates the facility impacted
It is all first purged and shifts, then carry out subsequent construction again；
C. stake machine is in place: stake machine being moved to the position driven piles, and makes a machine vertical, by the lockset of lifting
Etc. fixed equipments fix, pile foundation ontology 1 is lifted by crane, so that 2 position alignment stake position center of pile top, then slowly by pile foundation ontology
1 is put into soil, and backing plate 3 is then lifted into 1 top of pile foundation ontology, so that coordinating block 32 is embedded into mating groove 111, and
So that the outside of annular slab 31 with contact with each other on the outside of groove 11；
D. steady stake and piling: pile top 2 is inserted into after stake position, is first driven piles with lesser cold-hammer, vertical steady to pile foundation ontology 1
Fixed and then use is dropped hammer piling, is driven piles by the way of heavy hammer and low strike when piling；
E. high pressure gas chesson: after piling finish, backing plate 3 being sling, connecting tube 4 is then connected to high pressure gas station,
By high pressure gas station to feeding high pressure gas in pile foundation ontology 1, the pressure for the gas that high pressure gas station is sent into is controlled in 3 times of atmosphere
Pressure, the time loosened the soil control in 15min；
F. it grout pouring: loosens the soil and connecting tube 4 is connected on grouting pump after finishing, be pumped into cement grout by grouting pump
It is pumped into the gap of the loose soil finished into annular groove 14 and through fumarole 15, the grouting pressure control of grouting pump
System is controlled in 30Mpa, slip casting time in 10min.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of factory building pile foundation, it is characterised in that: pile foundation ontology (1) including cylindrical setting is fixedly connected on
The pile top (2) of pile foundation ontology (1) bottom and the connecting tube (4) for being fixedly connected on pile foundation ontology (1) top center position；
It is opened up at the top of pile foundation ontology (1) fluted (11), connecting tube (4) is located in groove (11), the height at the top of connecting tube (4)
Degree is lower than the height at the top of groove (11)；
Connecting tube (4) bottom is provided with the connecting hole for being provided in pile foundation ontology (1) and being interconnected with connecting tube (4)
(12), connecting hole (12) bottom, which is provided with, is provided in pile foundation ontology (1) and the dispersion hole (13) of setting in the form of annular discs, dispersion
It is provided with and is provided on pile foundation ontology (1) and the annular groove (14) of cylindrical setting at the periphery of hole (13) bottom side,
Several fumaroles (15) for running through pile foundation ontology (1) outward are provided on the periphery of annular groove (14) bottom.
2. a kind of factory building pile foundation according to claim 1, it is characterised in that: the top of the pile foundation ontology (1)
It is provided with setting in the form of annular discs and the backing plate (3) coaxial with pile foundation ontology (1).
3. a kind of factory building pile foundation according to claim 2, it is characterised in that: backing plate (3) bottom is fixed to be connected
It is connected to the annular slab (31) being inserted into groove (11), the outside of annular slab (31) and the side of groove (11) contact with each other.
4. a kind of factory building pile foundation according to claim 1, it is characterised in that: surrounding is set at the top of the groove (11)
It is equipped with the mating groove (111) being provided on pile foundation ontology (1) along the vertical direction, is provided in mating groove (111) and mating groove
(111) coordinating block (32) for cooperating and being fixedly connected on annular slab (31) periphery.
5. a kind of factory building pile foundation according to claim 1, it is characterised in that: the periphery of the pile foundation ontology (1)
On offer several recessing grooves (16) one-to-one with fumarole (15), fumarole (15) is located in recessing groove (16), resigning
It is provided in slot (16) baffle (5), baffle (5) two sides are fixedly connected with two close to the position of bottom and extend into pile foundation ontology (1)
In and with pile foundation ontology (1) rotation connection shaft (51).
6. a kind of factory building piling technique using factory building pile foundation described in claim 1-5 any claim,
It is characterized by comprising following steps:
A. true fixed pile: label is measured by the position that measurement needs to drive piles on the ground；
B. it land clearing: before being driven piles, needs land clearing is clean；
C. stake machine is in place: stake machine being moved to the position driven piles, and makes a machine vertical, by the lockset of lifting
Etc. fixed equipments fix, lift by crane pile foundation ontology (1), so that pile top (2) position alignment stake position center, then slowly by pile foundation
Ontology (1) is put into soil, then backing plate (3) is lifted at the top of pile foundation ontology (1), so that coordinating block (32) is embedded into mating groove
(111) in, and to contact with each other on the outside of annular slab (31) with groove (11) outside；
D. steady stake and piling: pile top (2) is inserted into after stake position, is first driven piles with lesser cold-hammer, is hung down to pile foundation ontology (1)
Straight stable and then use is dropped hammer piling, is driven piles by the way of heavy hammer and low strike when piling；
E. high pressure gas chesson: after piling finishes, backing plate (3) is sling, connecting tube (4) is then connected to high pressure gas
It stands, high pressure gas is sent into pile foundation ontology (1) by high pressure gas station in the middle；
F. grout pouring: loosening the soil and connecting tube (4) be connected on grouting pump after finishing, by grouting pump by cement slurry liquid pump
Enter in annular groove (14) and is pumped into the gap of the loose soil finished by fumarole (15), the slip casting of grouting pump
Pressure control is controlled in 20Mpa~30Mpa, slip casting time in 5min~10min.
7. factory building piling technique according to claim 6, it is characterised in that: in the step b, need to construction
Place carries out surveying work, and the obstruction such as trolley wire, underground power lines, water supply and sewerage pipeline are constructed and spend construction safety operation and are made
It is all first purged and shifts at the facility of influence, then carry out subsequent construction again.
8. factory building piling technique according to claim 6, it is characterised in that: in the step e, high pressure gas station is sent into
The pressure control of gas be pressed between 3 times of atmospheric pressure in 2.5 times of atmosphere, time for loosening the soil controls in 10min~15min.
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| CN201910657689.8A CN110374099B (en) | 2019-07-20 | 2019-07-20 | Building plant pile foundation and building plant piling process applying same |
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| CN201910657689.8A CN110374099B (en) | 2019-07-20 | 2019-07-20 | Building plant pile foundation and building plant piling process applying same |
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| CN110374099B CN110374099B (en) | 2021-04-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119124A (en) * | 2020-01-20 | 2020-05-08 | 华城建设集团有限公司 | Construction method for flexible grid hanging stone ecological landscape bank protection |
| CN114673208A (en) * | 2022-04-07 | 2022-06-28 | 北京市政建设集团有限责任公司 | Larsen steel sheet pile construction is with digging device |
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| CN111119124B (en) * | 2020-01-20 | 2021-12-28 | 华城建设集团有限公司 | Construction method for flexible grid hanging stone ecological landscape bank protection |
| CN114673208A (en) * | 2022-04-07 | 2022-06-28 | 北京市政建设集团有限责任公司 | Larsen steel sheet pile construction is with digging device |
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