CN108005065A - The constructing structure and construction method of PHC static pressure pipe piles - Google Patents

The constructing structure and construction method of PHC static pressure pipe piles Download PDF

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Publication number
CN108005065A
CN108005065A CN201711476215.0A CN201711476215A CN108005065A CN 108005065 A CN108005065 A CN 108005065A CN 201711476215 A CN201711476215 A CN 201711476215A CN 108005065 A CN108005065 A CN 108005065A
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CN
China
Prior art keywords
static pressure
pressure pipe
phc
pipe piles
bullport
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Pending
Application number
CN201711476215.0A
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Chinese (zh)
Inventor
王丽峰
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Shanghai Construction Group Co Ltd
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Shanghai Construction Group Co Ltd
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Filing date
Publication date
Application filed by Shanghai Construction Group Co Ltd filed Critical Shanghai Construction Group Co Ltd
Priority to CN201711476215.0A priority Critical patent/CN108005065A/en
Publication of CN108005065A publication Critical patent/CN108005065A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/58Prestressed concrete piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/60Piles with protecting cases
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/20Placing by pressure or pulling power

Abstract

The present invention provides a kind of constructing structure and construction method of PHC static pressure pipe piles, the present invention is after steel pile casting and bullport are provided with, PHC static pressure pipe piles are sunk to by guiding hole site by static pressure pipe pile machine, the steel pile casting ensures that boring procedure middle hole wall is not caved in, and the PHC static pressure pipe piles are peripheral through the bullport sunk to positioned at the steel pile casting lower part out of described steel pile casting.The present invention can make PHC static pressure pipe pile pile tops reach designed elevation, and avoid the problem that displacement occur in PHC static pressure pipe pile stake peripheries house, road, underground utilities.

Description

The constructing structure and construction method of PHC static pressure pipe piles
Technical field
The present invention relates to a kind of constructing structure and construction method of PHC static pressure pipe piles.
Background technology
PHC (pre-stressed high-strength concrete) static pressure pipe pile is one kind of engineering pile foundation construction Method, is now widely used for pile foundation construction.The construction of static pressure pipe pile method is the mechanism of pile by static pile press, with piling Machine is conducted oneself with dignity to be provided counter-force and prefabricated pile is pressed into the process for sinking in soil with the counterweight in rack.And usually can in tube pile construction The pressure for encountering static pile press pile sinking exceedes the design limit bearing capacity of pile pile in itself, causes pile body to damage, but pile top is not yet Reach the phenomenon of designed elevation;Or in shallow-layer silt soil strata during construction pile pile, the horizontal soil compaction effect in silt soil strata The buildings or structures for tackling building site periphery produce horizontal crowded power, cause around house, road cracking and underground utilities displacement etc. to ask Topic.
The content of the invention
It is an object of the invention to provide a kind of constructing structure and construction method of PHC static pressure pipe piles, static(al) can be solved The pressure of pile press machine pile sinking exceedes the design limit bearing capacity of pile pile in itself, causes pile body to damage, but pile top not yet reaches design Absolute altitude, and in shallow-layer silt soil strata during construction pile pile, the horizontal soil compaction effect in silt soil strata builds building site periphery (structure) builds produce unboiled water and equals crowded power, causes around house, road cracking and the problem of underground utilities displacement.
To solve the above problems, the present invention provides a kind of constructing structure of PHC static pressure pipe piles, including:
It is arranged at the bullport of subsurface;
It is disposed in proximity to the steel pile casting of the bullport periphery on ground;
Be arranged at bullport periphery and the PHC static pressure pipe piles positioned at the steel pile casting lower part.
Further, in said structure, the diameter of the bullport is smaller 15- than the outside diameter of the PHC static pressure pipe piles 20cm。
Further, in said structure, the depth of the bullport is less than the design mark at the PHC static pressure pipe piles end It is high.
Further, in said structure, the outside diameter of the PHC static pressure pipe piles is smaller 15- than the internal diameter of the steel pile casting 20cm。
Further, in said structure, backfill is further included in the steel pile casting and cover the PHC static tubes Silt in stake.
Another side according to the present invention, there is provided a kind of construction method of PHC static pressure pipe piles, including:
By rotary drilling rig, by ground down rotary digging bullport, outside the bullport on the close ground generated Enclose insertion steel pile casting;
By rotary drilling rig, continue bullport described in rotary digging under the steel pile casting to predetermined depth;
By static pressure pipe pile machine, the PHC static pressure pipe piles are passed through out of described steel pile casting, and sinks to and is protected positioned at the steel The bullport periphery of cylinder lower part.
Further, in said system, by rotary drilling rig, by ground down rotary digging bullport, including:
Determine the centre coordinate of the bullport, depth, diameter, verticality;
According to determining the centre coordinate of the bullport, depth, diameter, verticality, by rotary drilling rig by ground down Rotary digging bullport.
Further, in the above-mentioned methods, the diameter of the bullport is smaller 15- than the outside diameter of the PHC static pressure pipe piles 20cm。
Further, in the above-mentioned methods, the depth of the bullport is less than the design mark at the PHC static pressure pipe piles end It is high.
Further, in the above-mentioned methods, the outside diameter of the PHC static pressure pipe piles is smaller 15- than the internal diameter of the steel pile casting 20cm。
Further, in the above-mentioned methods, by static pressure pipe pile machine, by the PHC static pressure pipe piles out of described steel pile casting Pass through, and sink to positioned at the bullport periphery of the steel pile casting lower part, including:
Determine the aligned position at PHC static pressure pipe piles center and bullport center;
The verticality of PHC static pressure pipe piles is determined in the radial direction X and Y-axis both direction of PHC static pressure pipe piles;
According to the definite aligned position and verticality, by the static pressure pipe pile machine, by the PHC static pressure pipe piles pressure To the designed elevation of the bullport periphery of the steel pile casting lower part.
Further, in the above-mentioned methods, by static pressure pipe pile machine, by the PHC static pressure pipe piles out of described steel pile casting Pass through, and sink to after the bullport periphery of the steel pile casting lower part, further include:
The silt of the PHC static pressure pipe piles is covered in backfill in the steel pile casting;
The steel pile casting is extracted the steel pile casting from the silt.
Compared with prior art, the present invention is quiet by PHC by static pressure pipe pile machine after steel pile casting and bullport are provided with Guiding hole site is sunk in pressure pipe stake, and the steel pile casting ensures that boring procedure middle hole wall is not caved in, and the PHC static pressure pipe piles are from described It is peripheral through the bullport sunk to positioned at the steel pile casting lower part in steel pile casting.The present invention can reach PHC static pressure pipe pile pile tops To designed elevation, and avoid the problem that displacement occur in PHC static pressure pipe pile stake peripheries house, road, underground utilities.
Brief description of the drawings
Fig. 1 is the cross-section structure of the constructing structure of the PHC static pressure pipe piles of one embodiment of the invention.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is described in further detail.
As shown in Figure 1, the present invention provides a kind of constructing structure of PHC static pressure pipe piles, including:
The bullport 4 being arranged under ground 1;
It is disposed in proximity to the steel pile casting 2 of the bullport periphery on ground 1;
Be arranged at bullport periphery and the PHC static pressure pipe piles 3 positioned at the steel pile casting lower part.
Here, the bullport can be generated by rotary drilling rig, rotary drilling rig is constructed the degree of automation height, drilling efficiency Height, pore-forming is fast, can effectively avoid collapse hole, shrinkage cavity.The rotary drilling rig is common boring machine in engineering, such drilling machine is general Using hydraulic crawler stretch chassis, the foldable brill mast of automatic lifting, telescopic drill rod, with verticality automatic detection and adjustment, Hole depth digital-scroll technique etc..Furthermore it is also possible to rotary drilling rig is collected in mud caused by generation bullport by soil collection system Soil.The soil collection system can collect the soil of drilling bit of rotary-digging drilling rig carrying, and commanded by special messenger soil being stacked at finger Determine place or utilizing works vehicle is transported outward in time.
After steel pile casting 2 and bullport 4 are provided with, PHC static pressure pipe piles are sunk to by guiding hole site by static pressure pipe pile machine, The steel pile casting ensures that boring procedure middle hole wall is not caved in, and the PHC static pressure pipe piles pass through to sink to out of described steel pile casting to be located at The bullport periphery of the steel pile casting lower part.The present invention can make PHC static pressure pipe pile pile tops reach designed elevation, and avoid PHC There is the problem of displacement in static pressure pipe pile stake periphery house, road, underground utilities.
In one embodiment of constructing structure of the PHC static pressure pipe piles of the present invention, the diameter of the bullport is than the PHC static pressure The small 15-20cm of outside diameter of pile pile, while to facilitate the PHC static pressure pipe piles, avoids PHC static pressure pipe piles from occurring in bullport Loosen.
Here, it is smaller 15-20cm than PHC static pressure pipe pile outside diameter diameters using churning driven machine drill bullport, drilling bucket diameter, to prevent Only the diameter of bullport is too big, causes the PHC static pressure pipe piles of insertion bullport periphery to loosen.
As shown in Figure 1, in one embodiment of constructing structure of the PHC static pressure pipe piles of the present invention, the depth 5 of the bullport is small Designed elevation in the PHC static pressure pipe piles end.
Here, the depth of the bullport is less than the designed elevation at the PHC static pressure pipe piles end, the specific depth of bullport According to test pile or pile sinking experiment can be done determine, the depth of bullport can cause deeply very much HC static pressure pipe piles bottom to cushion cap above Bearing capacity it is inadequate.
In one embodiment of constructing structure of the PHC static pressure pipe piles of the present invention, the outside diameter of the PHC static pressure pipe piles is than the steel The small 15-20cm of internal diameter of casing, with facilitate the PHC static pressure pipe piles from the steel pile casting be inserted into bullport periphery and Positioned at the steel pile casting lower part.
In one embodiment of constructing structure of the PHC static pressure pipe piles of the present invention, backfill is further included in the steel pile casting, simultaneously The silt on the PHC static pressure pipe piles is covered, here, after PHC static pressure pipe piles are depressed into designed elevation using static pressure pipe pile machine, Backfill silt, is further ensured that the hole wall on PHC static pressure pipe piles top does not cave in the steel pile casting.In addition, in the steel pile casting After interior backfill silt, the steel pile casting can be extracted from the silt, to realize the recycling of steel pile casting.
As shown in Figure 1, the present invention also provides the construction method of another PHC static pressure pipe piles, including:
By rotary drilling rig by the down rotary digging bullport 4 of ground 1, outside the bullport on the close ground generated Enclose insertion steel pile casting 2;
By rotary drilling rig in described 2 times continuation rotary digging bullports 4 of steel pile casting to predetermined depth;
By static pressure pipe pile machine, the PHC static pressure pipe piles 3 are passed through out of described steel pile casting 2, and sinks to positioned at the steel The periphery of bullport 4 of 2 lower part of casing.
Here, hole site to be guided is confirmed after meeting construction requirement, PHC static pressure pipe piles can be transported to using haulage vehicle PHC static pressure pipe piles, are hung in static pressure pipe pile machine by construction site using Lifting implements, will using the hydraulic oil pump of static pressure pipe pile machine PHC static pressure pipe piles are depressed into bullport periphery design absolute altitude.
In one embodiment of construction method of the PHC static pressure pipe piles of the present invention, by rotary drilling rig, by ground, down rotary digging is drawn Guide hole includes:
Determine the centre coordinate of the bullport, depth, diameter, verticality;
According to determining the centre coordinate of the bullport, depth, diameter, verticality, by rotary drilling rig by ground down Rotary digging bullport, to ensure the precision of the bullport of generation.
Here, drilling bit of rotary-digging drilling rig diameter can be selected according to PHC design of static pressured tube pile diameter, generally than PHC static tube The stake small 15-20cm of outside diameter, by construction existing plan surveying and locating, (internal diameter of steel pile casting is than PHC static pressure pipe pile for embedded steel pile casting The big 10cm of outside diameter), churning driven power traction hole, draw centre coordinate, hole depth, aperture and the verticality that bullport is measured behind hole, confirm Meet construction requirement, after otherwise should backfilling clay compacting, redrilling.
In one embodiment of construction method of the PHC static pressure pipe piles of the present invention, the diameter of the bullport is than the PHC static pressure The small 15-20cm of outside diameter of pile pile, while to facilitate the PHC static pressure pipe piles, avoids PHC static pressure pipe piles from occurring in bullport Loosen.
Here, it is smaller 15-20cm than PHC static pressure pipe pile outside diameter diameters using churning driven machine drill bullport, drilling bucket diameter, to prevent Only the diameter of bullport is too big, causes the PHC static pressure pipe piles of insertion bullport periphery to loosen.
As shown in Figure 1, in one embodiment of construction method of the PHC static pressure pipe piles of the present invention, the depth 5 of the bullport is small Designed elevation in the PHC static pressure pipe piles end.
Here, the depth of the bullport is less than the designed elevation at the PHC static pressure pipe piles end, the specific depth of bullport According to test pile or pile sinking experiment can be done determine, the depth of bullport can cause deeply very much HC static pressure pipe piles bottom to cushion cap above Bearing capacity it is inadequate.
In one embodiment of construction method of the PHC static pressure pipe piles of the present invention, the outside diameter of the PHC static pressure pipe piles is than the steel The small 15-20cm of internal diameter of casing, with facilitate the PHC static pressure pipe piles from the steel pile casting be inserted into bullport periphery and Positioned at the steel pile casting lower part.
In one embodiment of construction method of the PHC static pressure pipe piles of the present invention, by static pressure pipe pile machine, by the PHC static pressure Pile pile is passed through out of described steel pile casting, and is sunk to positioned at the bullport periphery of the steel pile casting lower part, including:
Before PHC static pressure pipe piles are depressed into designed elevation by static pressure pipe pile machine, determine in PHC static pressure pipe piles center and bullport The aligned position of the heart, determines the verticality of PHC static pressure pipe piles, it is ensured that PHC in the radial direction X and Y-axis both direction of PHC static pressure pipe piles Static pressure pipe pile verticality allows in limit in specification;Wherein, the axial direction of PHC static pressure pipe piles is Z axis, and the X and Y-axis are hung down mutually Directly, the Z axis and the X and Y-axis are orthogonal;
According to the definite aligned position and verticality, by the static pressure pipe pile machine, by the PHC static pressure pipe piles pressure To the designed elevation of the bullport periphery of the steel pile casting lower part.
In one embodiment of construction method of the PHC static pressure pipe piles of the present invention, by static pressure pipe pile machine, by the PHC static pressure Pile pile is passed through out of described steel pile casting, and is sunk to after the bullport periphery of the steel pile casting lower part, is further included:
The silt of the PHC static pressure pipe piles is covered in backfill in the steel pile casting;
The steel pile casting is extracted the steel pile casting from the silt.
Here, after PHC static pressure pipe piles are depressed into designed elevation using static pressure pipe pile machine, mud is backfilled in the steel pile casting Sand, is further ensured that the hole wall on PHC static pressure pipe piles top does not cave in.In addition, after backfilling silt in the steel pile casting, can incite somebody to action The steel pile casting is extracted from the silt, to realize the recycling of steel pile casting.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Obviously, those skilled in the art can carry out invention spirit of the various modification and variations without departing from the present invention And scope.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies scope it Interior, then the present invention is also intended to including these modification and variations.

Claims (12)

  1. A kind of 1. constructing structure of PHC static pressure pipe piles, it is characterised in that including:
    It is arranged at the bullport of subsurface;
    It is disposed in proximity to the steel pile casting of the bullport periphery on ground;
    Be arranged at bullport periphery and the PHC static pressure pipe piles positioned at the steel pile casting lower part.
  2. 2. the constructing structure of PHC static pressure pipe piles as claimed in claim 1, it is characterised in that the diameter of the bullport compares institute State the small 15-20cm of outside diameter of PHC static pressure pipe piles.
  3. 3. the constructing structure of PHC static pressure pipe piles as claimed in claim 1, it is characterised in that the depth of the bullport is less than The designed elevation at the PHC static pressure pipe piles end.
  4. 4. the constructing structure of PHC static pressure pipe piles as claimed in claim 1, it is characterised in that the outside diameter of the PHC static pressure pipe piles It is smaller 15-20cm than the internal diameter of the steel pile casting.
  5. 5. the constructing structure of PHC static pressure pipe piles as claimed in claim 1, it is characterised in that further include backfill and protected in the steel It is in cylinder and cover the silt on the PHC static pressure pipe piles.
  6. A kind of 6. construction method of PHC static pressure pipe piles, it is characterised in that including:
    By rotary drilling rig, by ground, down rotary digging bullport, the bullport on the close ground generated are peripheral slotting Enter steel pile casting;
    By rotary drilling rig, continue bullport described in rotary digging under the steel pile casting to predetermined depth;
    By static pressure pipe pile machine, the PHC static pressure pipe piles are passed through out of described steel pile casting, and sinks under the steel pile casting The bullport periphery in portion.
  7. 7. the construction method of PHC static pressure pipe piles as claimed in claim 6, it is characterised in that by rotary drilling rig, from ground toward Lower rotary digging bullport, including:
    Determine the centre coordinate of the bullport, depth, diameter, verticality;
    According to the centre coordinate of the definite bullport, depth, diameter, verticality, by rotary drilling rig by ground down rotary digging Bullport.
  8. 8. the construction method of PHC static pressure pipe piles as claimed in claim 7, it is characterised in that the diameter of the bullport compares institute State the small 15-20cm of outside diameter of PHC static pressure pipe piles.
  9. 9. the construction method of PHC static pressure pipe piles as claimed in claim 7, it is characterised in that the depth of the bullport is less than The designed elevation at the PHC static pressure pipe piles end.
  10. 10. the construction method of PHC static pressure pipe piles as claimed in claim 7, it is characterised in that outside the PHC static pressure pipe piles Footpath is smaller 15-20cm than the internal diameter of the steel pile casting.
  11. 11. the construction method of PHC static pressure pipe piles as claimed in claim 6, it is characterised in that by static pressure pipe pile machine, by institute State PHC static pressure pipe piles to pass through out of described steel pile casting, and sink to positioned at the bullport periphery of the steel pile casting lower part, including:
    Determine the aligned position at PHC static pressure pipe piles center and bullport center;
    The verticality of PHC static pressure pipe piles is determined in the radial direction X and Y-axis both direction of PHC static pressure pipe piles;
    According to the definite aligned position and verticality, by the static pressure pipe pile machine, the PHC static pressure pipe piles are depressed into institute State the designed elevation of the bullport periphery of steel pile casting lower part.
  12. 12. the construction method of PHC static pressure pipe piles as claimed in claim 6, it is characterised in that by static pressure pipe pile machine, by institute State PHC static pressure pipe piles to pass through out of described steel pile casting, and sink to after the bullport periphery of the steel pile casting lower part, also wrap Include:
    The silt of the PHC static pressure pipe piles is covered in backfill in the steel pile casting;
    The steel pile casting is extracted the steel pile casting from the silt.
CN201711476215.0A 2017-12-29 2017-12-29 The constructing structure and construction method of PHC static pressure pipe piles Pending CN108005065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711476215.0A CN108005065A (en) 2017-12-29 2017-12-29 The constructing structure and construction method of PHC static pressure pipe piles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711476215.0A CN108005065A (en) 2017-12-29 2017-12-29 The constructing structure and construction method of PHC static pressure pipe piles

Publications (1)

Publication Number Publication Date
CN108005065A true CN108005065A (en) 2018-05-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109537583A (en) * 2018-11-26 2019-03-29 福建建中建设科技股份有限公司 A kind of slip casting plant pile construction method of PHC tubular pole
CN110700075A (en) * 2019-11-20 2020-01-17 湖南省西湖建筑集团有限公司 Construction method of assembly type artificial floating bridge system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109537583A (en) * 2018-11-26 2019-03-29 福建建中建设科技股份有限公司 A kind of slip casting plant pile construction method of PHC tubular pole
CN110700075A (en) * 2019-11-20 2020-01-17 湖南省西湖建筑集团有限公司 Construction method of assembly type artificial floating bridge system

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