CN108104113A - Exceeded ruggedized construction and construction method are deformed for friction pile in work progress - Google Patents
Exceeded ruggedized construction and construction method are deformed for friction pile in work progress Download PDFInfo
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- CN108104113A CN108104113A CN201711436324.XA CN201711436324A CN108104113A CN 108104113 A CN108104113 A CN 108104113A CN 201711436324 A CN201711436324 A CN 201711436324A CN 108104113 A CN108104113 A CN 108104113A
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- 238000010276 construction Methods 0.000 title claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 164
- 239000010959 steel Substances 0.000 claims abstract description 164
- 239000002689 soil Substances 0.000 claims abstract description 46
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 44
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 238000002513 implantation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000001727 in vivo Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 13
- 238000007596 consolidation process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000003672 processing method Methods 0.000 description 5
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- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- Piles And Underground Anchors (AREA)
Abstract
Exceeded ruggedized construction, the in vivo steel pipe pea gravel concreten mini pile of existed concrete bridge stake including being implanted into reinforced concrete anti-slide pile along longitudinal direction are deformed for friction pile in work progress the invention discloses a kind of；Steel pipe pea gravel concreten mini pile includes longitudinally disposed stake chest steel pipe pea gravel concreten mini pile and stake back of the body steel pipe pea gravel concreten mini pile；Stake chest steel pipe pea gravel concreten mini pile, which is arranged in concrete-pile body before stake, backfills soil body one side, and stake back of the body steel pipe pea gravel concreten mini pile backfills soil body one side before being arranged in concrete-pile body separate stake.The invention also discloses a kind of construction methods that exceeded ruggedized construction is deformed for friction pile in work progress.The ruggedized construction and construction method of the present invention reinforces existing reinforced concrete friction pile using steel pipe pea gravel concreten mini pile, and material therefor intensity is high, long-time stability are good, and construction quality is controllable.
Description
Technical field
The present invention relates to friction pile technical fields, and exceeded add is deformed for friction pile in work progress in particular to a kind of
Fixing structure and construction method.
Background technology
With the fast development of China's economy, the Large scale construction of the engineerings such as mountain railway, highway and water conservancy, friction pile quilt
It is widely used in the supporting and retaining system protection works of cut slope, steep slope subgrade.But in the construction process, due to engineering geological condition
Property complicated and changeable or construction period temporary drainage measure that soil body inundated intenerating etc. is not caused freely before stake to be likely to occur is accidental
Situation causes existing friction pile anchoring face to move down, anchoring depth deficiency, part friction pile be present with moderate finite deformation cause it is existing
The deformation of antiskid stake top, so as to be unsatisfactory for codes and standards, is not achieved expected friction pile pile foundation supporting and adds beyond expected requirement
Gu effect.
In order to avoid existing friction pile continues to destroy the engineering of bigger is caused to be lost, discarded dismounting existing pile foundation weight can be taken
New pile foundation of newly constructing adds reinforcing pile around existing pile foundation.Discarded dismounting existing pile foundation is taken to construct new pile foundation again should
It is feasible on method and technology but long there are the construction period, the shortcomings that operating expenses is excessively high, and economy is bad.Around existing pile foundation
Reinforcing pile is added, operation platform is not only lacked when forming higher free face after soil excavation before existing friction pile stake, construction is difficult
Degree is big, and quality is difficult to ensure, it is also possible to the disturbance to existing structure be caused to destroy, particularly in the poor soil layer of stability
Construction disturbance becomes apparent.
Therefore, it is necessary to research and propose a kind of ruggedized construction exceeded for friction pile deformation in work progress and construction party
Method, to improve the feasibility and economy of pile foundation reinforcement processing construction.
The content of the invention
Exceeded ruggedized construction is deformed for friction pile in work progress it is an object of the present invention to provide a kind of, it can
Effectively improve the feasibility and economy of friction pile consolidation process construction.
To achieve the above object, exceeded ruggedized construction bag is deformed for friction pile in work progress designed by the present invention
Include the in vivo steel pipe pea gravel concreten mini pile of existed concrete bridge stake for being implanted into the reinforced concrete anti-slide pile along longitudinal direction；It is described
Steel pipe pea gravel concreten mini pile includes longitudinally disposed stake chest steel pipe pea gravel concreten mini pile and stake back of the body steel pipe microlith mixes
Solidifying soil mini pile；The stake chest steel pipe pea gravel concreten mini pile is arranged in the concrete-pile body backfills the soil body before stake
One side, the stake back of the body steel pipe pea gravel concreten mini pile are arranged in the concrete-pile body away from the backfill soil body one before the stake
Side；The stake chest steel pipe pea gravel concreten mini pile and the size of stake back of the body steel pipe pea gravel concreten mini pile and number difference
It is determined according to stress after stress before the stake of the concrete pile body and stake.
Preferably, the steel pipe pea gravel concreten mini pile is arranged on the antiskid of the reinforced concrete anti-slide pile
The inside of stake main reinforcement and friction pile stirrup.
Preferably, in the steel pipe pea gravel concreten mini pile, the stake chest steel pipe pea gravel concreten mini pile
It is arranged in parallel at equal intervals side by side, the stake back of the body steel pipe pea gravel concreten mini pile is arranged in parallel at equal intervals side by side.
Preferably, the every stake chest steel pipe pea gravel concreten mini pile includes stake chest mini pile steel pipe, stake chest
Pea gravel concreten and stake chest mini pile cinclides, the stake chest mini pile cinclides are opened in the existing concrete pile body along longitudinal direction
On, the stake chest mini pile steel pipe is inserted into the stake chest mini pile cinclides and is opened in along longitudinal direction on existed concrete bridge pile body, described
In stake chest mini pile steel pipe, the stake chest pea gravel concreten (is cast in the stake chest mini pile steel pipe.
Preferably, the every stake back of the body steel pipe pea gravel concreten mini pile includes stake back of the body mini pile steel pipe, the stake back of the body
Pea gravel concreten and stake back of the body mini pile cinclides, the stake back of the body mini pile cinclides are opened in the existing concrete pile body along longitudinal direction
On, the stake back of the body mini pile steel pipe is inserted into the stake back of the body mini pile cinclides, and the stake back of the body pea gravel concreten is cast in the stake
It carries on the back in mini pile cinclides.
Preferably, the stake chest steel pipe pea gravel concreten mini pile of the steel pipe pea gravel concreten mini pile and
Stake back of the body steel pipe pea gravel concreten mini pile longitudinally through the entire reinforced concrete anti-slide pile length direction and under
It wears into the ground under the reinforced concrete anti-slide pile.
It is an object of the present invention to provide a kind of constructions that exceeded ruggedized construction is deformed for friction pile in work progress
Method can effectively improve the feasibility and economy of the construction of friction pile consolidation process.
To achieve the above object, the friction pile in work progress that is used for designed by the present invention deforms exceeded ruggedized construction
Construction method comprises the following steps：Step 1), it is miniature according to reinforced concrete anti-slide pile chest steel pipe pea gravel concreten to be reinforced
Stake and the size and number of stake back of the body steel pipe pea gravel concreten mini pile；Step 2), in the existing reinforced concrete anti-slide pile
Backfill body forms operation platform before stake is applied before stake；Step 3), using the operation platform that soil body offer is backfilled before stake, existing
The reinforced concrete anti-slide pile top by the stake chest steel pipe pea gravel concreten mini pile and stake determined in the step 1)
The size and number for carrying on the back steel pipe pea gravel concreten mini pile place geological drilling rig, apply brill along longitudinal direction respectively and are located at the existing steel
Stake chest mini pile cinclides and stake back of the body mini pile cinclides are formed in the concrete pile body of reinforced concrete friction pile；Step 4), in stake chest
Using stake chest mini pile steel pipe and stake back of the body mini pile steel pipe as probing in mini pile cinclides and stake back of the body mini pile cinclides drilling process
Bottom of the casing with proceeding to a chest mini pile cinclides and stake back of the body mini pile cinclides；Step 5) is carried on the back in stake chest mini pile steel pipe and stake
Pea gravel concreten is carried on the back in bored concrete pile chest pea gravel concreten and stake respectively in mini pile steel pipe；Step 6) treats that steel pipe pea gravel concreten is micro-
Type stake is conserved to the intensity of setting, and the soil body is backfilled before removing the stake, and continues to excavate the reinforced concrete anti-slide pile
The soil body is to design work face before stake.
Preferably, in the step 2), the top surface that the soil body is backfilled before the stake should be with the existing reinforcing bar
The stake top of agent on crack resistance of concrete sliding pile is concordant, and one side of the soil body away from the existing reinforced concrete anti-slide pile is backfilled before the stake and is set
Certain ratio of slope is put, the top surface that the soil body is backfilled before the stake sets the drainage slope outward of certain ratio of slope.
Preferably, in the step 4), the stake chest steel pipe pea gravel concreten mini pile and stake back of the body steel
Pipe pea gravel concreten mini pile longitudinally through the entire reinforced concrete anti-slide pile length direction and under wear to the steel
In ground under reinforced concrete friction pile.
The beneficial effects of the invention are as follows：The friction pile in work progress that is used for of the present invention deforms exceeded ruggedized construction and applies
Work method reinforces existing reinforced concrete friction pile using steel pipe pea gravel concreten mini pile, and steel pipe pea gravel concreten is micro-
Using steel pipe, pea gravel concreten, concrete and reinforcing bar as raw material, material therefor intensity is high, long-time stability are good, applies for type stake
Work is quality controllable；Steel pipe pea gravel concreten mini pile possesses certain tension, resistance to compression and shear resistance as individual pile body, supports
External force resistance effect is more preferable, and friction pile is carried out at reinforcing using intensity higher, more rigid steel pipe pea gravel concreten mini pile
Reason forms the steel tube concrete pile of strength and stiffness bigger, is effective against external force Reducing distortion.
Description of the drawings
Fig. 1 is that the vertical of exceeded ruggedized construction is deformed for friction pile in work progress using the preferred embodiment of the present invention
Section structure diagram.
Fig. 2 is the cross-sectional configuration schematic diagram that exceeded ruggedized construction is deformed for friction pile in work progress in Fig. 1.
Fig. 3 is the cross-sectional configuration schematic diagram of the stake chest steel pipe pea gravel concreten mini pile in Fig. 2.
Fig. 4 is the cross-sectional configuration schematic diagram of the stake back of the body steel pipe pea gravel concreten mini pile in Fig. 2.
Each part numbers are as follows in figure：Reinforced concrete anti-slide pile 1, steel pipe pea gravel concreten mini pile 2, concrete pile body
3rd, the soil body 7 is backfilled on the outside of steel pipe before stirrup 4, stirrup 5 of putting more energy into, ground 6, stake；Stake chest steel pipe pea gravel concreten mini pile 2.1, stake
Carry on the back steel pipe pea gravel concreten mini pile 2.2；Stake chest mini pile steel pipe 2.1.1, stake chest pea gravel concreten 2.1.2, stake chest mini pile
Cinclides 2.1.3；Stake back of the body mini pile steel pipe 2.2.1, stake back of the body pea gravel concreten 2.2.2, mini pile cinclides 2.2.3.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
Exceeded reinforcing engineering present situation is deformed based on friction pile, it is long, costly, scarce to solve the existing reinforcement means construction period
Weary operation platform disturbs existing pile foundation the defects of big, and this patent proposes a kind of super for friction pile deformation in work progress
Target reinforcement means.This method should avoid the defects of conventional reinforcing and processing method, ensure structure stress safety again, meet stake
The requirement of based structures intensity, long-time stability, and construction quality controllability is strong, effect on environment is small, and economy more preferably, needs emphasis
Solve following key technical problem：
(1) novel reinforced processing method should be able to control friction pile to deform, and solve it and deform excessive problem, strength and stiffness
It meets the requirements, long-time stability are met, and are the key technologies that the art of this patent should solve first；
(2) novel reinforced processing method should avoid conventional Reinforcement Measures from lacking operation platform, existing pile foundation is disturbed
The defects of big and construction period is long is secondly key technology that the art of this patent should solve；
(3) novel reinforced processing method should more adapt to the substantially up big and down small stress of piling strtucture pile body, deformation characteristics, from
And economy is more preferably, construction quality is controllable, this is the another key technology that this patent needs solve.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, the preferred embodiment of the present invention deforms for friction pile in work progress
Exceeded ruggedized construction is implanted into the existing friction pile that deformed using the miniature pilework of steel pipe pea gravel concreten, so as to fulfill right
The consolidation process of pile foundation, mainly include reinforced concrete anti-slide pile 1, steel pipe pea gravel concreten mini pile 2, concrete pile body 3,
The soil body 7 is backfilled before friction pile main reinforcement 4, friction pile stirrup 5, ground 6 and stake.
Steel pipe pea gravel concreten mini pile 2 is longitudinally disposed, and 7 one side of the soil body is backfilled before stake and is mixed for stake chest steel pipe microlith
Solidifying soil mini pile 2.1 carries on the back steel pipe pea gravel concreten mini pile 2.2 away from 7 one side of the soil body is backfilled before stake for stake.Per pile chest steel pipe
Pea gravel concreten mini pile 2.1 includes stake chest mini pile steel pipe 2.1.1, stake chest pea gravel concreten 2.1.2 and the miniature pile lining of stake chest
Hole 2.1.3.Per pile, back of the body steel pipe pea gravel concreten mini pile 2.2 includes stake back of the body mini pile steel pipe 2.2.1, stake back of the body pea gravel concreten
2.2.2 and mini pile cinclides 2.2.3 is carried on the back in stake.Simultaneously because the difference before stake with stress after stake, stake chest steel pipe pea gravel concreten are micro-
Type stake 2.1 and stake back of the body steel pipe pea gravel concreten mini pile 2.2 can be needed according to pile body stress it is specific calculate using different sizes and
Number, effectively control reinforce investment.
Reinforced concrete anti-slide pile 1 after reinforcing can be divided into along longitudinal direction with existing reinforced concrete anti-slide pile 1
Stake bottom can be divided into top pile body and lower part pile body two parts for boundary.
Top pile body is to be arranged on the existing reinforced concrete friction pile 1 to have deformed in ground 6 and steel pipe microlith mixes
Solidifying soil mini pile 2 forms, and existing reinforced concrete friction pile 1 is by 5 groups of concrete pile body 3, friction pile main reinforcement 4 and friction pile stirrup
Into the backfill soil body 7 provides platform for the construction of steel pipe pea gravel concreten mini pile 1 before stake, and steel pipe pea gravel concreten mini pile 2 is set
The inside of friction pile main reinforcement 4 and friction pile stirrup 5 is placed in, avoids damage to friction pile main reinforcement 4 and friction pile stirrup 5.Consolidation process
After, steel pipe pea gravel concreten mini pile 1, existing concrete pile body 3, friction pile main reinforcement 4, in 5 common shape of friction pile stirrup
Portion's reinforced concrete anti-slide pile, therefore top pile body overall stiffness is big, to undertake the larger load in top, and load is transferred
To ground 6 around and lower part pile body.Steel pipe pea gravel concreten mini pile 2 possesses certain tension, resistance to compression as individual pile body
And shear resistance, resistance external force effect is more preferable, using intensity higher, more rigid steel pipe pea gravel concreten mini pile to antiskid
Stake carries out consolidation process, forms the steel tube concrete pile of strength and stiffness bigger, being effective against external force prevents from deforming.Steel pipe is thin
2 strength of materials of stone concrete mini pile is high, long-time stability are good, and construction quality is controllable, is applied using geological drilling rig, to existing steel
For reinforced concrete friction pile 1 without damage, effect on environment is small, and accurate positioning, and construction occupies little space, and is conducive to gauge location and adds
Gu processing.
Lower part pile body is a clump of piles for several steel pipe pea gravel concreten mini piles 2 composition, and lower part pile body enters the depth of ground
It can be calculated and determined according to specific inspection, the load that lower part pile body shared top pile body transfers, and load is transferred to ground around
6.Wherein, steel pipe pea gravel concreten mini pile 2 backfills 7 one side of the soil body as stake chest steel pipe pea gravel concreten mini pile before stake
2.1, away from 7 one side of the soil body is backfilled before stake steel pipe pea gravel concreten mini pile 2.2 is carried on the back for stake.Per pile chest steel pipe pea gravel concreten
Mini pile 2.1 includes stake chest mini pile steel pipe 2.1.1, stake chest pea gravel concreten 2.1.2 and mini pile cinclides 2.1.3.Per pile
It carries on the back steel pipe pea gravel concreten mini pile 2.2 and carries on the back mini pile steel pipe 2.2.1 including stake, pea gravel concreten 2.2.2 is carried on the back in stake and miniature
Pile lining hole 2.2.3.Stake chest mini pile steel pipe 2.1.1 carries on the back mini pile steel pipe 2.2.1 in stake chest mini pile cinclides 2.1.3 and stake with stake
Back of the body mini pile cinclides 2.2.3 is implanted into during applying with pipe, and the two fits closely, and stake chest mini pile steel pipe 2.1.1 carries on the back micro- with stake
Type stake steel pipe 2.2.1 pours into a chest pea gravel concreten 2.1.2 and carries on the back pea gravel concreten 2.2.2, mini pile steel with stake respectively after fixing
Pipe and pea gravel concreten form reliable entirety.
From the point of view of another angle, the stake chest steel pipe pea gravel concreten mini pile 2.1 of steel pipe pea gravel concreten mini pile 2 and stake
Back of the body steel pipe pea gravel concreten mini pile 2.2 longitudinally through entire existing reinforced concrete friction pile 1 length direction and under wear
In ground 6 under to the stake of existing reinforced concrete friction pile 1.
The present invention also proposes a kind of construction method that exceeded ruggedized construction is deformed for friction pile in work progress, the party
Method mainly carries out consolidation process, principle using the miniature pilework of steel pipe pea gravel concreten to the existing friction pile that deformed
It is that steel pipe pea gravel concreten mini pile is implanted into existing friction pile, and steel pipe pea gravel concreten mini pile is worn into armored concrete
For friction pile to certain depth, its upper part is concrete filled steel tube friction pile and the combination knot of more steel pipe pea gravel concreten mini piles
Structure, the clump of piles that lower part forms for more steel pipe pea gravel concreten mini piles.Steel pipe pea gravel concreten mini pile is as individual stake
Body possesses certain tension, resistance to compression and shear resistance, and resistance external force effect is more preferable, using intensity higher, more rigid steel pipe
Pea gravel concreten mini pile carries out consolidation process to friction pile, forms the steel tube concrete pile of strength and stiffness bigger, can be effective
Resisting external force prevents from deforming.Steel pipe pea gravel concreten mini pile runs through entire pile body, and top is intensity higher, more rigid steel
Pipe concrete stake, lower part are resisted top pile body using the action of pile group of mini pile and are passed only with steel pipe pea gravel concreten mini pile
The load passed, rigidity is up big and down small, is suitable for pile body structure substantially in up big and down small stress, deformation characteristics, economy is more
It is good.In addition, this method is solved using soil body offer operation platform is backfilled before stake because of shape after soil excavation before existing friction pile stake
Lack operation platform into higher free face, the problem of difficulty of construction is big, and quality is difficult to ensure, while utilize operation platform back-pressure
It can prevent reinforcing engineering construction period friction pile deformation further development, prevent pile body and slope failure.Steel pipe pea gravel concreten
Mini pile is applied using geological drilling rig, accurate positioning, and small to the disturbance of existing friction pile, has apparent technical advantage.In addition,
This reinforcing and processing method does not have exclusiveness, can simultaneously be used with other reinforcement measures.
The specific implementation of the construction method that exceeded ruggedized construction is deformed for friction pile in work progress of the present invention
Journey is as follows：
Step 1) determines implantation according to stress after stress before the stake for deforming exceeded reinforced concrete anti-slide pile 1 and stake
The stake chest steel pipe pea gravel concreten mini pile (2.1) of steel pipe pea gravel concreten mini pile 2 and stake back of the body steel pipe pea gravel concreten are miniature
The size and number of stake (2.2).
Step 2) applies before reinforced concrete anti-slide pile 1 and backfills the soil body 7 before stake and form operation platform.
The top surface of the backfill soil body 7 should be concordant with the stake top of existing reinforced concrete friction pile 1 to provide operation platform before stake,
One side of the backfill soil body 7 away from existing reinforced concrete friction pile 1 should set certain ratio of slope to keep homeostasis, top surface before stake
The drainage slope outward of certain ratio of slope should be set, prevent construction period surface water is oozed along under existing friction pile from causing soil before stake
Body softens and further deteriorates friction pile force environment.
Step 3) using the operation platform that the offer of the soil body 7 is backfilled before stake, is pushed up in strained reinforced concrete anti-slide pile 1
Geological drilling rig is placed by design position by portion, applies the stake chest mini pile cinclides bored positioned at existing reinforced concrete friction pile 1 respectively
2.1.3 mini pile cinclides 2.2.3 is carried on the back with stake.
Step 4), it is in stake chest mini pile cinclides 2.1.3 and stake back of the body mini pile cinclides 2.2.3 drilling process that stake chest is miniature
Stake steel pipe 2.1.1 and stake back of the body mini pile steel pipe 2.2.1 is as boring casing with proceeding to design stake bottom position.
Stake chest steel pipe pea gravel concreten mini pile 2.1 and stake back of the body steel pipe pea gravel concreten mini pile 2.2 are longitudinally through whole
The length direction of a reinforced concrete anti-slide pile 1 and under wear into the ground 6 under reinforced concrete anti-slide pile 1.
Pea gravel concreten is perfused in stake chest mini pile steel pipe 2.1.1 and stake back of the body mini pile steel pipe 2.2.1, carefully in step 5)
Stone concrete workability should meet design requirement, and be perfused and should ensure that pea gravel concreten perfusion is closely knit since steel pipe bottom, fill
It is conserved and is detected on request after note.
Step 6) is conserved after steel pipe pea gravel concreten mini pile 2 to enough intensity, and the soil body 7 is backfilled before removing stake, and
Continue before excavating stake the soil body to design work face.
The present invention's deforms exceeded ruggedized construction and construction method with following several sides for friction pile in work progress
The advantages of face：
(1) concrete filled steel tube borehole is perfused compound miniature pilework and is made using steel pipe, pea gravel concreten, concrete and reinforcing bar
For raw material, material therefor intensity is high, long-time stability are good, and construction quality is controllable.
(2) steel pipe pea gravel concreten mini pile possesses certain tension, resistance to compression and shear resistance as individual pile body, supports
External force resistance effect is more preferable, and friction pile is carried out at reinforcing using intensity higher, more rigid steel pipe pea gravel concreten mini pile
Reason forms the steel tube concrete pile of strength and stiffness bigger, and being effective against external force prevents from deforming.
(3) applied using the backfill soil body before stake for steel pipe pea gravel concreten mini pile and operation platform is provided, solved because both
Have and form higher free face after soil excavation and lack operation platform before friction pile stake, difficulty of construction is big, and quality is difficult to what is ensured
Problem.Reinforcing engineering construction period friction pile deformation further development can be prevented using operation platform back-pressure, prevent pile body simultaneously
And slope failure.
(4) steel pipe pea gravel concreten mini pile is applied using geological drilling rig, accurate positioning, and existing friction pile is disturbed
It is small, there is apparent technical advantage.
(5) steel pipe pea gravel concreten mini pile runs through entire pile body, and top is intensity higher, more rigid steel tube concrete
The lotus of top pile body transmission is resisted in native stake, lower part only with steel pipe pea gravel concreten mini pile using the action of pile group of mini pile
It carries, rigidity is up big and down small, is suitable for pile body structure substantially in up big and down small stress, deformation characteristics, has saved lower part borehole
Pile driving construction, economy is more preferably.It can specifically be calculated and adopted according to pile body stress with stake back of the body steel pipe pea gravel concreten mini pile before stake simultaneously
With different sizes and number, further investment reduction.
In conclusion the ruggedized construction exceeded for friction pile deformation in work progress and construction method of the present invention exist.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of deform exceeded ruggedized construction for friction pile in work progress, it is characterised in that：The ruggedized construction includes
The steel pipe pea gravel concreten mini pile being implanted into along longitudinal direction in the existed concrete bridge pile body (3) of the reinforced concrete anti-slide pile (1)
(2)；The steel pipe pea gravel concreten mini pile (2) includes longitudinally disposed stake chest steel pipe pea gravel concreten mini pile (2.1)
With stake back of the body steel pipe pea gravel concreten mini pile (2.2)；The stake chest steel pipe pea gravel concreten mini pile (2.1) is arranged on described mixed
The soil body (7) one side is backfilled in solidifying soil pile body (3) before stake, the stake back of the body steel pipe pea gravel concreten mini pile (2.2) is arranged on
Away from the backfill soil body (7) one side before the stake in the concrete pile body (3)；The stake chest steel pipe pea gravel concreten mini pile
(2.1) and the stake back of the body steel pipe pea gravel concreten mini pile (2.2) size and number respectively according to the concrete pile body (3)
Stake before after stress and stake stress determine.
2. according to claim 1 deform exceeded ruggedized construction for friction pile in work progress, it is characterised in that：Institute
State friction pile main reinforcement (4) and friction pile that steel pipe pea gravel concreten mini pile (2) is arranged on the reinforced concrete anti-slide pile (1)
The inside of stirrup (5).
3. according to claim 2 deform exceeded ruggedized construction for friction pile in work progress, it is characterised in that：Institute
It states in steel pipe pea gravel concreten mini pile (2), the stake chest steel pipe pea gravel concreten mini pile (2.1) parallel cloth at equal intervals side by side
It puts, the stake back of the body steel pipe pea gravel concreten mini pile (2.2) is arranged in parallel at equal intervals side by side.
4. according to claim 2 deform exceeded ruggedized construction for friction pile in work progress, it is characterised in that：Often
Stake chest steel pipe pea gravel concreten mini pile (2.1) described in root includes stake chest mini pile steel pipe (2.1.1), stake chest pea gravel concreten
(2.1.2) and stake chest mini pile cinclides (2.1.3), the stake chest mini pile cinclides (2.1.3) are opened in existing institute along longitudinal direction
It states in concrete pile body (3), the stake chest mini pile steel pipe (2.1.1) is inserted into the stake chest mini pile cinclides (2.1.3) along vertical
To being opened on existed concrete bridge pile body (3), in the stake chest mini pile steel pipe (2.1.3), the stake chest pea gravel concreten
(2.1.2) is cast in the stake chest mini pile steel pipe (2.1.1).
5. according to claim 4 deform exceeded ruggedized construction for friction pile in work progress, it is characterised in that：Often
Stake back of the body steel pipe pea gravel concreten mini pile (2.2) described in root includes stake back of the body mini pile steel pipe (2.2.1), stake back of the body pea gravel concreten
(2.2.2) and stake back of the body mini pile cinclides (2.2.3), the stake back of the body mini pile cinclides (2.2.3) are opened in existing institute along longitudinal direction
It states in concrete pile body (3), the stake back of the body mini pile steel pipe (2.2.1) is inserted into the stake back of the body mini pile cinclides (2.2.3), institute
Stake back of the body pea gravel concreten (2.2.2) is stated to be cast in the stake back of the body mini pile cinclides (2.2.3).
6. according to claim 1 deform exceeded ruggedized construction for friction pile in work progress, it is characterised in that：Institute
The stake chest steel pipe pea gravel concreten mini pile (2.1) and the stake back of the body steel pipe for stating steel pipe pea gravel concreten mini pile (2) are thin
Stone concrete mini pile (2.2) longitudinally through the entire reinforced concrete anti-slide pile (1) length direction and under wear to institute
It states in the ground (6) under reinforced concrete anti-slide pile (1).
7. a kind of construction party according to claim 1 that exceeded ruggedized construction is deformed for friction pile in work progress
Method, it is characterised in that：
Step 1), according to after stress before the stake for the reinforced concrete anti-slide pile (1) reinforced and stake stress determine implantation steel pipe
The stake chest steel pipe pea gravel concreten mini pile (2.1) of pea gravel concreten mini pile (2) and stake back of the body steel pipe pea gravel concreten mini pile
(2.2) size and number；
Step 2), the backfill soil body (7) formation construction is flat before stake is applied before the existing reinforced concrete anti-slide pile (1) stake
Platform；
Step 3), using the operation platform that the soil body (7) offer is backfilled before stake, in the existing reinforced concrete anti-slide pile (1)
By the stake chest steel pipe pea gravel concreten mini pile (2.1) and stake that determine in the step 1) to carry on the back steel pipe pea gravel concreten micro- at top
The size and number of type stake (2.2) place geological drilling rig, apply brill along longitudinal direction respectively and are located at the existing armored concrete antiskid
Stake chest mini pile cinclides (2.1.3) and stake back of the body mini pile cinclides (2.2.3) are formed in the concrete pile body (3) of stake (1)；
Step 4), it is in stake chest mini pile cinclides (2.1.3) and stake back of the body mini pile cinclides (2.2.3) drilling process that stake chest is miniature
Stake steel pipe (2.1.1) and stake the back of the body mini pile steel pipe (2.2.1) be used as boring casing with proceed to a chest mini pile cinclides (2.1.3) and
The bottom of stake back of the body mini pile cinclides (2.2.3)；
Step 5), bored concrete pile chest microlith mixes respectively in stake chest mini pile steel pipe (2.1.1) and stake back of the body mini pile steel pipe (2.2.1)
Solidifying soil (2.1.2) and stake back of the body pea gravel concreten (2.2.2)；
After the intensity of steel pipe pea gravel concreten mini pile (2) maintenance to setting, the soil body is backfilled before removing the stake for step 6)
(7), and the soil body is continued to excavate before the stake of the reinforced concrete anti-slide pile (1) to design work face.
8. the construction method according to claim 7 that exceeded ruggedized construction is deformed for friction pile in work progress,
It is characterized in that：In the step 2), the top surface that the soil body (7) is backfilled before the stake should be with the existing armored concrete antiskid
The stake top of stake (1) is concordant, and one side of the soil body (7) away from the existing reinforced concrete anti-slide pile (1) is backfilled before the stake and is set
Certain ratio of slope is put, the top surface that the soil body (7) is backfilled before the stake sets the drainage slope outward of certain ratio of slope.
9. the construction method according to claim 7 that exceeded ruggedized construction is deformed for friction pile in work progress,
It is characterized in that：In the step 4), the stake chest steel pipe pea gravel concreten mini pile (2.1) and stake back of the body steel pipe microlith mix
Solidifying soil mini pile (2.2) longitudinally through the entire reinforced concrete anti-slide pile (1) length direction and under wear to the steel
In ground (6) under reinforced concrete friction pile (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436324.XA CN108104113A (en) | 2017-12-26 | 2017-12-26 | Exceeded ruggedized construction and construction method are deformed for friction pile in work progress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436324.XA CN108104113A (en) | 2017-12-26 | 2017-12-26 | Exceeded ruggedized construction and construction method are deformed for friction pile in work progress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108104113A true CN108104113A (en) | 2018-06-01 |
Family
ID=62213408
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711436324.XA Pending CN108104113A (en) | 2017-12-26 | 2017-12-26 | Exceeded ruggedized construction and construction method are deformed for friction pile in work progress |
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