CN109898511A - A kind of construction method of static pressed pile and its dedicated Static pressure pile driver - Google Patents
A kind of construction method of static pressed pile and its dedicated Static pressure pile driver Download PDFInfo
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- CN109898511A CN109898511A CN201910275049.0A CN201910275049A CN109898511A CN 109898511 A CN109898511 A CN 109898511A CN 201910275049 A CN201910275049 A CN 201910275049A CN 109898511 A CN109898511 A CN 109898511A
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Abstract
The invention discloses a kind of construction method of static pressed pile and its dedicated Static pressure pile drivers, construction method includes in place, pile sinking, and the pile sinking includes that double embrace presses pile sinking method, double embrace sink pipe pile sinking method, single armful of pressure singly to press one of immersed tube pile sinking method, armful pressure external potential energy pile sinking method, the interior rammer potential energy pile sinking method of armful pressure.The present invention is easy for construction, effect is good；Double embrace pressure flowing water pile sinking method can be used to Soft Soil Area；For the Soft Soil Area of hard layer, double embrace pressure flowing water immersed tube pile sinking method can be used；For the Soft Soil Area of soft-hard combining, single armful of pressure singly press immersed tube pile sinking method can be used；For pressing from both sides soft pan soil area, it can be used and embrace pressure external potential energy pile sinking method；For pan soil area, it can be used and embrace pressure internal potential energy pile sinking method.
Description
Technical field
The present invention relates to a kind of construction method of static pressed pile and its dedicated Static pressure pile drivers.
Background technique
The prefabricated piles such as existing tubular pole, square pile, shaped pile, composite pile work progress in, the pile driving pressure in pan soil area is more than
Allow pile driving pressure, the even more than pile driving pressure of the limit, cause quick-fried stake, split stake, stake pressure is not gone down etc., and pile sinking are difficult；Soft Soil Area place
Intensity is not able to satisfy piling requirement and normal walking, influences process and progress；Technique need to be further improved.
Summary of the invention
The purpose of the present invention is to provide a kind of construction method of static pressed pile easy for construction, effect is good and its dedicated static pressure
Stake machine.
The technical solution of the invention is as follows:
A kind of construction method of static pressed pile, including in place, pile sinking, it is characterized in that: the pile sinking includes one of following method:
(1) double embrace presses pile sinking method: the upper and lower two sets hydraulic armful of pressure oils that can embrace prefabricated pile are vertically arranged in static pressure equipment rack
Cylinder；It is downward along guide rail that prefabricated pile is first embraced by a set of hydraulic armful of compressing cylinder of lower section, pressure is embraced and is sink to set depth, then unclamp
The hydraulic armful of compressing cylinder, returns upwards along guide rail；Then, it is downward along guide rail to embrace prefabricated pile for a set of hydraulic armful of compressing cylinder of top
It embraces pressure and is sink to set depth, then unclamp the hydraulic armful of compressing cylinder, returned upwards along guide rail；Repeat up and down two sets it is hydraulic
It embraces compressing cylinder and embraces the downward pile sinking of prefabricated pile, until pile sinking is to set depth；
The pile sinking such as in composite pile cement earth pile, during two section stakes or more piece staking stake, a set of hydraulic armful of pressure oil of lower section
Cylinder is embraced lower section prefabricated pile and is fixed, and stake is saved under preventing when pile extension sinks to liquid soil cement and fall stake, and keep verticality；On
A set of hydraulic armful of compressing cylinder of side is embraced section prefabricated pile and is fixed, and guarantees the overlapping degree and verticality of section stake up and down；
(2) double embrace sink pipe pile sinking method: vertically disposed two sets of hydraulic armful of compressing cylinders up and down in static pressure equipment rack can be embraced respectively
Firmly outer tube and stretch out outer tube upper end outer tube in prefabricated pile；First from a set of hydraulic armful of compressing cylinder of lower section embrace outer tube along guide rail to
Down toward set depth, the hydraulic armful of compressing cylinder is then unclamped, is returned upwards along guide rail；Then, a set of hydraulic armful of top
Compressing cylinder, which embraces prefabricated pile and embraces pressure downwards along guide rail, is sink to set depth, then unclamps the hydraulic armful of compressing cylinder, along guide rail to
Upper returning；Repeat two sets of hydraulic armful of compressing cylinders up and down and embraces the downward immersed tube pile sinking of prefabricated pile, immersed tube pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, during two section stakes or more piece staking stake, a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section prefabricated pile and is fixed, and stake is saved under not allowing when pile extension sinks to liquid soil cement and fall stake, and keep vertical
Degree；A set of hydraulic armful of compressing cylinder of top is embraced section prefabricated pile and is fixed, and guarantees section stake overlapping degree and verticality up and down；
(3) single armful of pressure singly presses immersed tube pile sinking method: vertically disposed two sets of hydraulic cylinders up and down in static pressure equipment rack can be distinguished
It embraces outer tube and withstands prefabricated pile crown in the outer tube for stretching out outer tube upper end；A set of hydraulic cylinder of lower section is hydraulic armful of compressing cylinder,
A set of hydraulic cylinder of top is hydraulic top-pressure oil cylinder；Outer tube is first embraced by a set of hydraulic armful of compressing cylinder of lower section and embraces pressure along guide rail
A set depth is sunk down into, the hydraulic armful of compressing cylinder is then unclamped, is returned upwards along guide rail；Then, top is a set of hydraulic
Press oil cylinder withstands prefabricated pile crown, and for hydraulic top-pressure oil cylinder along guide rail downwardly against prefabricated pile crown, it is deep that press sinks down into a setting
Degree；Repeat the downward immersed tube pile sinking of two sets of hydraulic cylinders up and down, up to immersed tube pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section prefabricated pile and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；On
A set of hydraulic top-pressure oil cylinder of side withstands the prefabricated pile crown of section and fixes, and guarantees section stake overlapping degree and verticality up and down；
(4) embrace pressure external potential energy pile sinking method: vertically disposed two sets of hydraulic armful of compressing cylinders up and down are embraced prefabricated in static pressure equipment rack
Stake, guarantees the verticality of stake；Start hydraulic armful of compressing cylinder and embrace pressure downwards along guide rail and be sink to a set depth, then unclamping should
Hydraulic armful of compressing cylinder returns upwards along guide rail, when release, drop hammer certainly, diesel hammer, hydraulic hammer, vibration hammer, from gravity equipotentiality
Prefabricated pile can be acted on outside, and prefabricated pile is made to sink down into certain depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section stake and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；Top
A set of hydraulic armful of compressing cylinder is embraced section stake and is fixed, and guarantees section stake overlapping degree and verticality up and down；
(5) embrace and ram potential energy pile sinking method in pressure: vertically disposed two sets of hydraulic armful of compressing cylinders up and down are embraced pre- in static pressure equipment rack
Stake processed guarantees the verticality of stake；Start hydraulic armful of compressing cylinder and embrace pressure downwards along guide rail and be sink to a set depth, then unclamps
The hydraulic armful of compressing cylinder, returns upwards along guide rail, and when release, drill pipe system down-the-hole is impacted, cuts, stirred in prefabricated pile cavity
It mixes, act on the soil body under drill bit in the potential energy of punching, embrace pressure potential energy and act on prefabricated pile pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section stake and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；Top
A set of hydraulic armful of compressing cylinder is embraced section stake and is fixed, and guarantees section stake overlapping degree and verticality up and down；
Before prefabricated pile pile, pass through the down-the-hold drill bit base expanding and base expanding in prefabricated pile cavity；After prefabricated pile pile, pass through equipment in prefabricated pile
Slip casting channel, control injecting paste material, grouting pressure, slip casting time, slip casting pressure injection increase prefabricated pile and the periphery soil body bonding
Degree；Outer tube outside by prefabricated pile controls filler material, loading, and static pressure, anti-plug vibration, guarantee prefabricated pile and periphery soil repeatedly
Dilating for body is closely knit, to improve pile side resistance and bottom bearing, guarantees bearing capacity of single pile.
Described is the stake position nearside being located in static pressure equipment on construction stake position, or constructed in place, or constructed
Stake position center；The pile sinking is the static-pressure system and immersed tube system started on static pressure equipment, and prefabricated pile is sunk down into set depth.
The dedicated Static pressure pile driver of the construction method of the static pressed pile, including hydraulic ship running gear, chassis, rack, it is special
Sign is: rack is equipped with two sets of hydraulic armful of compressing cylinders up and down of vertical direction setting.
Rack is in three sections of combining forms of upper, middle and lower segment, the lower section of rack be equipped with vertical direction setting up and down two sets it is hydraulic
Embrace compressing cylinder；A set of hydraulic top-pressure oil cylinder is equipped on the middle section of rack；Rack is separated in three sections of upper, middle and lower segment, can be combined
Form.
At rack neighbour, equipped with the second rack being loaded on chassis, drill pipe system, drilling rod lower part are housed in the second rack
Chassis, hydraulic ship running gear corresponding position be equipped with the hole that passes through of drilling rod.
Existing construction of Static Pressure Pile method is substantially single armful of pressure or single two kinds of pile sinking method of press；The present invention it is easy for construction,
Effect is good；In the present invention, double embrace pressure flowing water pile sinking method can be used to Soft Soil Area；For the Soft Soil Area of hard layer, double embrace can be used
Press flowing water immersed tube pile sinking method；For the Soft Soil Area of soft-hard combining, single armful of pressure singly press immersed tube pile sinking method can be used；It is soft for pressing from both sides
Pan soil area can be used and embrace pressure external potential energy pile sinking method；For pan soil area, it can be used and embrace pressure internal potential energy pile sinking method.
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of Static pressure pile driver.
Fig. 2 is the schematic diagram of Static pressure pile driver another kind structure.
Specific embodiment
A kind of construction method of static pressed pile, including in place, pile sinking, the pile sinking include one of following method:
(1) double embrace presses pile sinking method: the upper and lower two sets hydraulic armful of pressure oils that can embrace prefabricated pile are vertically arranged in static pressure equipment rack
Cylinder；It is downward along guide rail that prefabricated pile is first embraced by a set of hydraulic armful of compressing cylinder of lower section, pressure is embraced and is sink to set depth, then unclamp
The hydraulic armful of compressing cylinder, returns upwards along guide rail；Then, it is downward along guide rail to embrace prefabricated pile for a set of hydraulic armful of compressing cylinder of top
It embraces pressure and is sink to set depth, then unclamp the hydraulic armful of compressing cylinder, returned upwards along guide rail；Repeat up and down two sets it is hydraulic
It embraces compressing cylinder and embraces the downward pile sinking of prefabricated pile, until pile sinking is to set depth；
The pile sinking such as in composite pile cement earth pile, during two section stakes or more piece staking stake, a set of hydraulic armful of pressure oil of lower section
Cylinder is embraced lower section prefabricated pile and is fixed, and stake is saved under preventing when pile extension sinks to liquid soil cement and fall stake, and keep verticality；On
A set of hydraulic armful of compressing cylinder of side is embraced section prefabricated pile and is fixed, and guarantees the overlapping degree and verticality of section stake up and down；
(2) double embrace sink pipe pile sinking method: vertically disposed two sets of hydraulic armful of compressing cylinders up and down in static pressure equipment rack can be embraced respectively
Firmly outer tube and stretch out outer tube upper end outer tube in prefabricated pile；First from a set of hydraulic armful of compressing cylinder of lower section embrace outer tube along guide rail to
Down toward set depth, the hydraulic armful of compressing cylinder is then unclamped, is returned upwards along guide rail；Then, a set of hydraulic armful of top
Compressing cylinder, which embraces prefabricated pile and embraces pressure downwards along guide rail, is sink to set depth, then unclamps the hydraulic armful of compressing cylinder, along guide rail to
Upper returning；Repeat two sets of hydraulic armful of compressing cylinders up and down and embraces the downward immersed tube pile sinking of prefabricated pile, immersed tube pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, during two section stakes or more piece staking stake, a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section prefabricated pile and is fixed, and stake is saved under not allowing when pile extension sinks to liquid soil cement and fall stake, and keep vertical
Degree；A set of hydraulic armful of compressing cylinder of top is embraced section prefabricated pile and is fixed, and guarantees section stake overlapping degree and verticality up and down；
(3) single armful of pressure singly presses immersed tube pile sinking method: vertically disposed two sets of hydraulic cylinders up and down in static pressure equipment rack can be distinguished
It embraces outer tube and withstands prefabricated pile crown in the outer tube for stretching out outer tube upper end；A set of hydraulic cylinder of lower section is hydraulic armful of compressing cylinder,
A set of hydraulic cylinder of top is hydraulic top-pressure oil cylinder；Outer tube is first embraced by a set of hydraulic armful of compressing cylinder of lower section and embraces pressure along guide rail
A set depth is sunk down into, the hydraulic armful of compressing cylinder is then unclamped, is returned upwards along guide rail；Then, top is a set of hydraulic
Press oil cylinder withstands prefabricated pile crown, and for hydraulic top-pressure oil cylinder along guide rail downwardly against prefabricated pile crown, it is deep that press sinks down into a setting
Degree；Repeat the downward immersed tube pile sinking of two sets of hydraulic cylinders up and down, up to immersed tube pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section prefabricated pile and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；On
A set of hydraulic top-pressure oil cylinder of side withstands the prefabricated pile crown of section and fixes, and guarantees section stake overlapping degree and verticality up and down；
(4) embrace pressure external potential energy pile sinking method: vertically disposed two sets of hydraulic armful of compressing cylinders up and down are embraced prefabricated in static pressure equipment rack
Stake, guarantees the verticality of stake；Start hydraulic armful of compressing cylinder and embrace pressure downwards along guide rail and be sink to a set depth, then unclamping should
Hydraulic armful of compressing cylinder returns upwards along guide rail, when release, drop hammer certainly, diesel hammer, hydraulic hammer, vibration hammer, from gravity equipotentiality
Prefabricated pile can be acted on outside, and prefabricated pile is made to sink down into certain depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section stake and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；Top
A set of hydraulic armful of compressing cylinder is embraced section stake and is fixed, and guarantees section stake overlapping degree and verticality up and down；
(5) embrace and ram potential energy pile sinking method in pressure: vertically disposed two sets of hydraulic armful of compressing cylinders up and down are embraced pre- in static pressure equipment rack
Stake processed guarantees the verticality of stake；Start hydraulic armful of compressing cylinder and embrace pressure downwards along guide rail and be sink to a set depth, then unclamps
The hydraulic armful of compressing cylinder, returns upwards along guide rail, and when release, drill pipe system down-the-hole is impacted, cuts, stirred in prefabricated pile cavity
It mixes, act on the soil body under drill bit in the potential energy of punching, embrace pressure potential energy and act on prefabricated pile pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section stake and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；Top
A set of hydraulic armful of compressing cylinder is embraced section stake and is fixed, and guarantees section stake overlapping degree and verticality up and down；
Before prefabricated pile pile, pass through the down-the-hold drill bit base expanding and base expanding in prefabricated pile cavity；After prefabricated pile pile, pass through equipment in prefabricated pile
Slip casting channel, control injecting paste material, grouting pressure, slip casting time, slip casting pressure injection increase prefabricated pile and the periphery soil body bonding
Degree；Outer tube outside by prefabricated pile controls filler material, loading, and static pressure, anti-plug vibration, guarantee prefabricated pile and periphery soil repeatedly
Dilating for body is closely knit, to improve pile side resistance and bottom bearing, guarantees bearing capacity of single pile.
Described is the stake position nearside being located in static pressure equipment on construction stake position, or constructed in place, or constructed
Stake position center；The pile sinking is the static-pressure system and immersed tube system started on static pressure equipment, and prefabricated pile is sunk down into set depth.
The dedicated Static pressure pile driver of the construction method of the static pressed pile, including hydraulic ship running gear, chassis, rack, first
Rack is equipped with two sets of hydraulic armful of compressing cylinders up and down of vertical direction setting；At the first rack neighbour, it is equipped with loaded on chassis
The second rack, drill pipe system is housed, chassis, the hydraulic ship running gear corresponding position of drilling rod lower part, which are equipped with, bores in the second rack
The hole that bar passes through.
First rack is in three sections of combining forms of upper, middle and lower segment, and the lower section of the first rack is equipped with vertical direction setting
Upper and lower two sets hydraulic armful of compressing cylinders；A set of hydraulic top-pressure oil cylinder is equipped on the middle section of the first rack；First rack presents, in,
Lower three sections are form that is separable, can combining；Bird head is arranged in first rack upper section, for installing the equipment such as hoist engine.
Drill pipe system or immersed tube system, pile-driving system are housed in the second rack.
Claims (5)
1. a kind of construction method of static pressed pile, including in place, pile sinking, it is characterized in that: the pile sinking includes one of following method:
(1) double embrace presses pile sinking method: the upper and lower two sets hydraulic armful of pressure oils that can embrace prefabricated pile are vertically arranged in static pressure equipment rack
Cylinder；It is downward along guide rail that prefabricated pile is first embraced by a set of hydraulic armful of compressing cylinder of lower section, pressure is embraced and is sink to set depth, then unclamp
The hydraulic armful of compressing cylinder, returns upwards along guide rail；Then, it is downward along guide rail to embrace prefabricated pile for a set of hydraulic armful of compressing cylinder of top
It embraces pressure and is sink to set depth, then unclamp the hydraulic armful of compressing cylinder, returned upwards along guide rail；Repeat up and down two sets it is hydraulic
It embraces compressing cylinder and embraces the downward pile sinking of prefabricated pile, until pile sinking is to set depth；
The pile sinking such as in composite pile cement earth pile, during two section stakes or more piece staking stake, a set of hydraulic armful of pressure oil of lower section
Cylinder is embraced lower section prefabricated pile and is fixed, and stake is saved under preventing when pile extension sinks to liquid soil cement and fall stake, and keep verticality；On
A set of hydraulic armful of compressing cylinder of side is embraced section prefabricated pile and is fixed, and guarantees the overlapping degree and verticality of section stake up and down；
(2) double embrace sink pipe pile sinking method: vertically disposed two sets of hydraulic armful of compressing cylinders up and down in static pressure equipment rack can be embraced respectively
Firmly outer tube and stretch out outer tube upper end outer tube in prefabricated pile；First from a set of hydraulic armful of compressing cylinder of lower section embrace outer tube along guide rail to
Down toward set depth, the hydraulic armful of compressing cylinder is then unclamped, is returned upwards along guide rail；Then, a set of hydraulic armful of top
Compressing cylinder, which embraces prefabricated pile and embraces pressure downwards along guide rail, is sink to set depth, then unclamps the hydraulic armful of compressing cylinder, along guide rail to
Upper returning；Repeat two sets of hydraulic armful of compressing cylinders up and down and embraces the downward immersed tube pile sinking of prefabricated pile, immersed tube pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, during two section stakes or more piece staking stake, a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section prefabricated pile and is fixed, and stake is saved under not allowing when pile extension sinks to liquid soil cement and fall stake, and keep vertical
Degree；A set of hydraulic armful of compressing cylinder of top is embraced section prefabricated pile and is fixed, and guarantees section stake overlapping degree and verticality up and down；
(3) single armful of pressure singly presses immersed tube pile sinking method: vertically disposed two sets of hydraulic cylinders up and down in static pressure equipment rack can be distinguished
It embraces outer tube and withstands prefabricated pile crown in the outer tube for stretching out outer tube upper end；A set of hydraulic cylinder of lower section is hydraulic armful of compressing cylinder,
A set of hydraulic cylinder of top is hydraulic top-pressure oil cylinder；Outer tube is first embraced by a set of hydraulic armful of compressing cylinder of lower section and embraces pressure along guide rail
A set depth is sunk down into, the hydraulic armful of compressing cylinder is then unclamped, is returned upwards along guide rail；Then, top is a set of hydraulic
Press oil cylinder withstands prefabricated pile crown, and for hydraulic top-pressure oil cylinder along guide rail downwardly against prefabricated pile crown, it is deep that press sinks down into a setting
Degree；Repeat the downward immersed tube pile sinking of two sets of hydraulic cylinders up and down, up to immersed tube pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section prefabricated pile and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；On
A set of hydraulic top-pressure oil cylinder of side withstands the prefabricated pile crown of section and fixes, and guarantees section stake overlapping degree and verticality up and down；
(4) embrace pressure external potential energy pile sinking method: vertically disposed two sets of hydraulic armful of compressing cylinders up and down are embraced prefabricated in static pressure equipment rack
Stake, guarantees the verticality of stake；Start hydraulic armful of compressing cylinder and embrace pressure downwards along guide rail and be sink to a set depth, then unclamping should
Hydraulic armful of compressing cylinder returns upwards along guide rail, when release, drop hammer certainly, diesel hammer, hydraulic hammer, vibration hammer, from gravity equipotentiality
Prefabricated pile can be acted on outside, and prefabricated pile is made to sink down into certain depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section stake and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；Top
A set of hydraulic armful of compressing cylinder is embraced section stake and is fixed, and guarantees section stake overlapping degree and verticality up and down；
(5) embrace and ram potential energy pile sinking method in pressure: vertically disposed two sets of hydraulic armful of compressing cylinders up and down are embraced pre- in static pressure equipment rack
Stake processed guarantees the verticality of stake；Start hydraulic armful of compressing cylinder and embrace pressure downwards along guide rail and be sink to a set depth, then unclamps
The hydraulic armful of compressing cylinder, returns upwards along guide rail, and when release, drill pipe system down-the-hole is impacted, cuts, stirred in prefabricated pile cavity
It mixes, act on the soil body under drill bit in the potential energy of punching, embrace pressure potential energy and act on prefabricated pile pile sinking to set depth；
The immersed tube pile sinking such as in composite pile cement earth pile, two section stakes or more piece stake are during pile extension, and a set of hydraulic armful of lower section
Compressing cylinder is embraced lower section stake and is fixed, and does not allow pile extension to save stake at present and sink to liquid soil cement and falls stake, and keeps verticality；Top
A set of hydraulic armful of compressing cylinder is embraced section stake and is fixed, and guarantees section stake overlapping degree and verticality up and down；
Before prefabricated pile pile, pass through the down-the-hold drill bit base expanding and base expanding in prefabricated pile cavity；After prefabricated pile pile, pass through equipment in prefabricated pile
Slip casting channel, control injecting paste material, grouting pressure, slip casting time, slip casting pressure injection increase prefabricated pile and the periphery soil body bonding
Degree；Outer tube outside by prefabricated pile controls filler material, loading, and static pressure, anti-plug vibration, guarantee prefabricated pile and periphery soil repeatedly
Dilating for body is closely knit, to improve pile side resistance and bottom bearing, guarantees bearing capacity of single pile.
2. a kind of construction method of static pressed pile according to claim 1, including in place, pile sinking, it is characterized in that: described in place
It is the stake position nearside being located in static pressure equipment on construction stake position, or constructed, or the stake position center constructed；The pile sinking
It is the static-pressure system and immersed tube system started on static pressure equipment, prefabricated pile is sunk down into set depth.
3. a kind of dedicated Static pressure pile driver of construction method of static pressed pile described in claim 1, including hydraulic ship running gear, bottom
Disk, rack, it is characterized in that: the first rack is equipped with two sets of hydraulic armful of compressing cylinders up and down of vertical direction setting；In the first rack
At neighbour, equipped with loaded on the second rack on chassis.
4. the dedicated Static pressure pile driver of the construction method of static pressed pile according to claim 3, it is characterized in that: first rack is in
Upper, middle and lower segment combining form, the lower section of the first rack are equipped with two sets of hydraulic armful of compressing cylinders up and down of vertical direction setting；
A set of hydraulic top-pressure oil cylinder is equipped on the middle section of the first rack；First rack is separated in three sections of upper, middle and lower segment, can be combined
Form；Bird head is arranged in first rack upper section.
5. the dedicated Static pressure pile driver of the construction method of static pressed pile according to claim 3, it is characterized in that: being equipped in the second rack
Drill pipe system or immersed tube system, pile-driving system.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111021351A (en) * | 2019-12-25 | 2020-04-17 | 中建六局土木工程有限公司 | Pile top plugging construction method for pre-tensioning prestressed concrete pipe pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021351A (en) * | 2019-12-25 | 2020-04-17 | 中建六局土木工程有限公司 | Pile top plugging construction method for pre-tensioning prestressed concrete pipe pile |
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Application publication date: 20190618 |