CN106013093B - A kind of pile construction method - Google Patents

A kind of pile construction method Download PDF

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Publication number
CN106013093B
CN106013093B CN201610414527.8A CN201610414527A CN106013093B CN 106013093 B CN106013093 B CN 106013093B CN 201610414527 A CN201610414527 A CN 201610414527A CN 106013093 B CN106013093 B CN 106013093B
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tube
tamping tube
inner tamping
under
disk
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CN106013093A (en
Inventor
邢峰
朱峰
姚亚光
邓峰祥
朱建新
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Zhu Jianxin
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    • 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
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/385Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes

Abstract

The invention discloses a kind of pile construction method, including in place, immersed tube step, immersed tube methods:The pressurization static-pressure system for starting stake construction equipment and the inner tube in immersed tube system, interaction pressurization and interior rammer, set depth is sunk down by immersed tube system.Present invention improves over immersed tube technique, charging technology improves work efficiency, is that a kind of flow is controllable, pile driving construction new technology of reliable in quality.

Description

A kind of pile construction method
Technical field
The present invention relates to a kind of construction methods.
Background technology
Existing static pressure cast stake, prefabricated pile, club-footed pile, composite pile construction technology, wherein hidden pipe pile technique, base expanding and base expanding work Skill, charging technology, core-inserting pile technique have much room for improvement, ergonomicity to be improved.
Existing 1200 tons of pile press machine maximum pile driving pressure(Dead weight+counterweight), 800 tons of maximum extract force, maximum is at full capacity 1200+800=2000 tons, general place is difficult to meet construction requirement.
Invention content
The purpose of the present invention is to provide a kind of easy for construction, pile press machine lacks the construction method of the stake of counterweight.
Technical solution of the invention is:
A kind of construction method, including in place, immersed tube step, it is characterized in that:Immersed tube method:
The pressurization static-pressure system for starting stake construction equipment and the inner tube in immersed tube system, interaction pressurization and interior rammer, by immersed tube system System sinks down into set depth;Specific method includes:
A) the following length of disk being rammed on inner tube hammer and being not more than outer length of tube, the dead weight of stake machine meets the premise of pile driving pressure with Beijing South Maxpower Technology Co. Ltd Under, interaction pressurization and interior rammer;Under the premise of stake machine dead weight counterweight cannot meet pile driving pressure, interior rammer sinks;
B) the following length of disk being rammed on inner tamping tube hammer and being more than outer length of tube, the dead weight of stake machine meets the premise of pile driving pressure with Beijing South Maxpower Technology Co. Ltd Under, interaction pressurization is rammed with interior;Under the premise of stake machine dead weight counterweight cannot meet pile driving pressure, sinking is inside rammed.
After immersed tube, base expanding and base expanding is first carried out, then poured;It is described pour for:Inner tamping tube system is above put forward, pile body or decentralization are poured Precast pile;Immersed tube system is the single steel outer tube for setting rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube outer diameter is less than outer tube Internal diameter;
The method of base expanding and base expanding is:By setting inventory, the height that the feeds intake H=volume that feeds intake V puts into filler material;Inner tamping tube top is set Not less than ramming disk on outer tube diameter, inner tamping tube lower part is set no more than ramming disk under outer tube diameter;It is upper and lower ram disk with it is interior It rams pipe and forms inner tamping tube hammer;Charging technology is used in combination using one of following two kinds of methods or two kinds of methods:
(One)Inner tamping tube inner cavity charging technology:
Filler material is dosed to inner tamping tube inner cavity, when being dosed to inner tamping tube inner cavity, is thrown using from inner tamping tube top open part Material feeds intake from inner tamping tube lateral opening hole;Then outer tube is pulled out on to certain altitude h >=0, above carries inner tamping tube, and filler material is from interior rammer Bottom of the tube falls, by embracing pressure, top pressure or a counter-pressure method pressurize repeatedly and/or it is interior ram filler material, above pull up plug in outer tube to stake Bottom distance C is 10-30cm, forms resistance to compression, resistance to plucking enlarged footing;
(Two)Inner and outer pipes cavity charging technology:Cavity filler material being dosed between inner and outer pipes;Disk is rammed under inner tamping tube Upper setting discharging structure, and discharging structure keeps off the re-entrant portion between inner and outer pipes, blocking discharging, inner tamping tube when inner tamping tube pushing Discharging structure opens discharging when above carrying;By embracing pressure, top pressure or a counter-pressure method pressurize repeatedly and/or it is interior ram filler material, above pull out Underthrust outer tube is 10-30cm to stake bottom distance C, forms resistance to compression, resistance to plucking enlarged footing.
The discharging structure includes that annular is arranged the dentation flap valve that disc main body periphery is rammed under inner tamping tube, dentation flap valve with Under ram disk activity connection;Inner tamping tube pushes, and disk is rammed under being pushed up on the soil body, and dentation flap valve horizontal direction opens gear between inner and outer pipes Re-entrant portion, formed major diameter under ram disk, at this time dentation flap valve blocking discharging;Carried on inner tamping tube, under ram disk and leave soil Body, annular falls dentation flap valve naturally, is formed under minor diameter and rams disk, the cavity between inner and outer pipes is not stopped, is smoothly gone out Material.
Under ram disk use steel plate back cover, the steel plate be spend poroid, loose-leaf shape or flap valve shape.
Charging technology method(One)The filler material is from inner tamping tube base falls:Filler material rams under from disc floret hole, It falls at loose-leaf opening, at flap valve shape opening, at the disengagement of inner cavity or at inner and outer pipes cavity;Side channel is offered in inner tamping tube lower part Hole, under ram disk and be fixedly connected with connecting plate, connecting plate is covered on the side channel hole, and connecting plate top is fixedly mounted with can be in side channel hole In the bolt that moves up and down;It refers to that disk is rammed under inner tamping tube when being pulled out on inner tamping tube that the inner cavity, which disengages, under inner tamping tube side channel hole It falls, connecting plate, which synchronizes, to fall, and side channel hole is opened;Fall at the inner and outer pipes cavity refers to that inner tamping tube inner cavity feeds intake height more than interior Tube cavity tapping is rammed to overflow naturally;
Or charging technology method(One)The filler material is from inner tamping tube base falls:It is opened up out in inner tamping tube lower side Material mouth, filler material fall from discharge port.
Present invention improves over single immersed tube techniques, increase single tube, the two-tube, warehouse section that fetches earth fetches earth, full soil extracting process And pressure fills, pre- stirring concrete earth mixture technique;Increase down-hole hammer impacting with high pressure underground obstacle and down-hole hammer high pressure Churning cement industry;It is compounded with pressurization and interacts technique with interior rammer, interior rammer interacts technique, vibratory process integration;Pile press machine is matched less Weight even zero counterweight, also can normal immersed tube, greatly improve work efficiency.
Present invention improves over the discharging technologies that feeds intake, on the basis of original inner tamping tube hammers inner cavity charging technology into shape;In increasing Outer tube cavity charging technology, and improve corresponding discharging technology, and compound inner tamping tube hammer inner cavity charging technology and inside and outside Pipe cavity charging technology;Substantially increase work efficiency.
Present invention improves over base expanding and base expanding techniques to increase interior on the basis of single inner tamping tube now pressurizes filler material base expanding and base expanding Outer tube immersed tube system base expanding and base expanding;It on the basis of present single inner tamping tube pressing technology, increases and rams, be compounded with pressurization, interior rammer, Ram technique in pressurization, pressurize repeatedly, inside ram, interaction pressurization, it is interior ram, pulled up on inner and outer pipe it is slotting, formed resistance to compression resistance to plucking expand Major part can control the size shape of enlarged footing, form rammed bulb pile, moreover it is possible to control enlarged footing surrounding soil by setting coefficient Compacted degree, formed carrier pile, moreover it is possible to the size for controlling terminal piling pressure estimates the size of single pile ultimate compressive bearing capacity, Form club-footed pile.
Present invention improves over immersed tube technique, charging technology, base expanding and base expanding technique improves work efficiency, is that a kind of flow is controllable, quality Reliable static-pressure expanding bottom pile new technology.
With reference to embodiment, the invention will be further described.
Specific implementation mode
A kind of construction method, including
(One)In place:Equipment immersed tube system is located on the stake position set, or the stake position nearside constructed, or The cement earth pile position center constructed;It can pre- embedded shoe on stake position;
(Two)Immersed tube:Equipment immersed tube system is sunk down into set depth;
(Three)It pours:Inner tamping tube system is above put forward, pile body or decentralization precast pile are poured;
(Four)Tube drawing:To prefabricated pile:Outer tube is extracted, gap filler material, curing agent around prefabricated stake body are filled in completely, Forming pile;To present walling pile:Extract outer tube, armored concrete forming pile;Also outer tube, concrete filled steel tube forming pile can not be pulled out;
Step(One)In immersed tube system be the single steel outer tube for setting rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube Outer diameter is less than outer tube diameter;
Immersed tube method:
The pressurization static-pressure system for starting stake construction equipment and the inner tube in immersed tube system, interaction pressurization and interior rammer, by immersed tube system System sinks down into set depth;Specific method includes:
A) the following length of disk being rammed on inner tube hammer and being not more than outer length of tube, the dead weight of stake machine meets the premise of pile driving pressure with Beijing South Maxpower Technology Co. Ltd Under, interaction pressurization(Immersed tube system of pressurizeing is sunk)With interior rammer(Inner tamping tube hammer, freely falling body are above carried, disk is rammed on inner tamping tube hammer Outer tube is driven to sink together);Under the premise of stake machine dead weight counterweight cannot meet pile driving pressure, interior rammer sinks(Inner tamping tube is above carried to hammer into shape, certainly Ramming disk by falling bodies, on inner tamping tube hammer drives outer tube to sink together);
B) the following length of disk being rammed on inner tamping tube hammer and being more than outer length of tube, the dead weight of stake machine meets the premise of pile driving pressure with Beijing South Maxpower Technology Co. Ltd Under, interaction pressurization(Immersed tube system of pressurizeing is sunk)It is rammed with interior(Inner tamping tube hammer, freely falling body are above carried, inner tamping tube is hammered into shape outside first punching The soil body under nozzle or soil-cement body, then on ram disk drive outer tube sink together);Stake machine dead weight counterweight cannot meet piling Under the premise of power, sinking is inside rammed(Above carry inner tamping tube bell, freely falling body, the soil body or water under the first punching outer spout of inner tamping tube hammer Soil body, then on ram disk drive outer tube sink together).
After immersed tube, base expanding and base expanding is first carried out, then poured;Immersed tube system is the single steel outer tube for setting rigidity, single steel inner tamping tube And coupling arrangement;Inner tamping tube outer diameter is less than outer tube diameter;
The method of base expanding and base expanding is:By setting inventory, the height that the feeds intake H=volume that feeds intake V puts into filler material;Both when can be with immersed tube It feeds intake, can also feed intake when base expanding and base expanding, with with throwing, guarantee feed is synchronous in time, saves first time and each time gradation point The time to feed intake is measured, work efficiency is substantially increased.Inner tamping tube top is set not less than disk is rammed on outer tube diameter, and inner tamping tube lower part is set No more than ramming disk under outer tube diameter;Upper and lower disk of ramming forms inner tamping tube hammer with inner tamping tube;Drop hammer certainly built in inner tamping tube hammer, Hydraulic hammer, electrically operated hammer, down-hole hammer or diesel hammer.Charging technology is using one of following two kinds of methods or two kinds of methods are compound makes simultaneously With:
(One)Inner tamping tube inner cavity charging technology:
Filler material is dosed to inner tamping tube inner cavity, when being dosed to inner tamping tube inner cavity, is thrown using from inner tamping tube top open part Material feeds intake from inner tamping tube lateral opening hole;Then outer tube is pulled out on to certain altitude h >=0, above carries inner tamping tube, and filler material is from interior rammer Bottom of the tube falls, by embracing pressure, top pressure or a counter-pressure method pressurize repeatedly and/or it is interior ram filler material, above pull up plug in outer tube to stake Bottom distance C is 10-30cm, forms resistance to compression, resistance to plucking enlarged footing;
(Two)Inner and outer pipes cavity charging technology:Inner and outer pipes cavity charging technology:Filler material is dosed between inner and outer pipes Cavity;It is rammed under inner tamping tube and discharging structure is set on disk, and discharging structure keeps off the cavity between inner and outer pipes when inner tamping tube pushing Position(It can be the cavity between cavity or the partially enclosed inner and outer pipes all closed between inner and outer pipes), blocking discharging, interior rammer Discharging structure opens discharging when being carried on pipe;By embracing pressure, top pressure or a counter-pressure method pressurize repeatedly and/or it is interior ram filler material, on It is 10-30cm that plug in outer tube, which is pulled up, to stake bottom distance C, forms resistance to compression, resistance to plucking enlarged footing.
The discharging structure includes that annular is arranged the dentation flap valve that disc main body periphery is rammed under inner tamping tube, dentation flap valve with Under ram disk activity connection;Inner tamping tube pushes, and disk is rammed under being pushed up on the soil body, and dentation flap valve horizontal direction opens gear between inner and outer pipes Re-entrant portion, formed major diameter under ram disk, at this time dentation flap valve blocking discharging;Carried on inner tamping tube, under ram disk and leave soil Body, annular falls dentation flap valve naturally, is formed under minor diameter and rams disk, the cavity between inner and outer pipes is not stopped, is smoothly gone out Material.It ensure that inner and outer pipes cavity goes down the discharge space of disk to greatest extent, thin mixture can discharge in cement mortar, in concrete Thick mixture can also discharge;
Under ram disk use steel plate back cover, the steel plate be spend poroid, loose-leaf shape or flap valve shape.
Charging technology method(One)The filler material is from inner tamping tube base falls:Filler material rams under from disc floret hole, It falls at loose-leaf opening, at flap valve shape opening, at the disengagement of inner cavity or at inner and outer pipes cavity;Side channel is offered in inner tamping tube lower part Hole, under ram disk and be fixedly connected with connecting plate, connecting plate is covered on the side channel hole, and connecting plate top is fixedly mounted with can be in side channel hole In the bolt that moves up and down;It refers to that disk is rammed under inner tamping tube when being pulled out on inner tamping tube that the inner cavity, which disengages, under inner tamping tube side channel hole It falls, connecting plate, which synchronizes, to fall, and side channel hole is opened;Fall at the inner and outer pipes cavity refers to that inner tamping tube inner cavity feeds intake height more than interior Tube cavity tapping is rammed to overflow naturally;
Or charging technology method(One)The filler material is from inner tamping tube base falls:It is opened up out in inner tamping tube lower side Material mouth, filler material fall from discharge port.
Inner tamping tube internal upper part, which is set, hangs bolt.
Sensor is embedded on outer tube and inner tamping tube, sensor acquires pressure, injection degrees of data is synchronized by internet and passed Transport to terminal.
On ram disk be hollow annular;Inner tamping tube bottom uses steel plate back cover.
Step(Four)After extracting outer tube, the filler material for filling in gap around pile body is middle fine grained, consolidation powder, cement, stone One or more of ash, gypsum, construction waste, industrial waste, cement mixture, dry and wet concrete, dry and wet cement mortar;Gu Agent is to mix the liquid or powdery of one or more of waterglass, active matter, swelled ground to consolidate powder, cement as major ingredient Reinforcement of soft soil material.

Claims (1)

1. a kind of pile construction method, including in place, immersed tube step, it is characterized in that:Immersed tube method:
The pressurization static-pressure system for starting stake construction equipment and the inner tube in immersed tube system, interaction pressurization and interior rammer, will be under immersed tube system It is sink to set depth;Specific method includes:
A) the following length of disk being rammed on inner tamping tube hammer and being not more than outer length of tube, the dead weight of stake machine meets the premise of pile driving pressure with Beijing South Maxpower Technology Co. Ltd Under, interaction pressurization is sunk with interior rammer;Under the premise of stake machine dead weight counterweight cannot meet pile driving pressure, interior rammer sinks;The interaction adds Pressure refers to:Immersed tube system of pressurizeing is sunk;The Inner rams:Above carry inner tamping tube hammer, freely falling body, the upper rammer of inner tamping tube hammer Hitting disk drives outer tube to sink together;
B) the following length of disk is rammed on inner tamping tube hammer be more than outer length of tube, under the premise of the dead weight of stake machine meets pile driving pressure with Beijing South Maxpower Technology Co. Ltd, Interaction pressurization rams sinking with interior;Under the premise of stake machine dead weight counterweight cannot meet pile driving pressure, sinking is inside rammed;It is rammed in described Sinking refers to:Above carry inner tamping tube bell, freely falling body, the soil body or soil-cement body under the first punching outer spout of inner tamping tube hammer, then on Ramming disk drives outer tube to sink together;
After immersed tube, base expanding and base expanding is first carried out, then poured;It is described pour for:Inner tamping tube system is above put forward, pile body is poured or decentralization is prefabricated Pile body;Immersed tube system is the single steel outer tube for setting rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube outer diameter is less than in outer tube Diameter;
The method of base expanding and base expanding is:By setting inventory, the height that the feeds intake H=volume that feeds intake V puts into filler material;Inner tamping tube top sets not small In ramming disk on outer tube diameter, inner tamping tube lower part is set no more than ramming disk under outer tube diameter;Ram disk and inner tamping tube above and below Form inner tamping tube hammer;Charging technology is used in combination using one of following two kinds of methods or two kinds of methods:
(One)Inner tamping tube inner cavity charging technology:
Filler material is dosed to inner tamping tube inner cavity, when being dosed to inner tamping tube inner cavity, using feeding intake from inner tamping tube top open part or It feeds intake from inner tamping tube lateral opening hole;Then outer tube is pulled out on to certain altitude h >=0, above carries inner tamping tube, and filler material is from inner tamping tube bottom Subordinate falls, by embracing pressure, top pressure or a counter-pressure method pressurize repeatedly and/or it is interior ram filler material, above pull up plug in outer tube to stake bottom away from It is 10-30cm from C, forms resistance to compression, resistance to plucking enlarged footing;
(Two)Inner and outer pipes cavity charging technology:Cavity filler material being dosed between inner and outer pipes;It rams on disk and sets under inner tamping tube Discharging structure is set, and discharging structure keeps off the re-entrant portion between inner and outer pipes when inner tamping tube pushing, blocking discharges, and is carried on inner tamping tube When discharging structure open discharging;By embracing pressure, top pressure or a counter-pressure method pressurize repeatedly and/or it is interior ram filler material, above pull up slotting Outer tube is 10-30cm to stake bottom distance C, forms resistance to compression, resistance to plucking enlarged footing;
The discharging structure includes that the dentation flap valve that disc main body periphery is rammed under inner tamping tube, dentation flap valve and lower rammer is arranged in annular Hit disk activity connection;Inner tamping tube pushes, and disk is rammed under being pushed up on the soil body, and dentation flap valve horizontal direction opens sky of the gear between inner and outer pipes Cavity portion position forms under major diameter and rams disk, the discharging of dentation flap valve blocking at this time;Carried on inner tamping tube, under ram disk and leave the soil body, tooth Naturally annular falls shape flap valve, is formed under minor diameter and rams disk, the cavity between inner and outer pipes is not stopped, smoothly discharged;
Under ram disk use steel plate back cover, the steel plate be spend poroid, loose-leaf shape or flap valve shape;
Charging technology method(One)The filler material is from inner tamping tube base falls:Filler material rammed under from disc floret hole, loose-leaf It falls at opening, at flap valve shape opening, at the disengagement of inner cavity or at inner and outer pipes cavity;Side channel hole is offered in inner tamping tube lower part, under Disk is rammed to be fixedly connected with connecting plate, connecting plate is covered on the side channel hole, connecting plate top be fixedly mounted with can be in side channel hole on The bolt of lower movement;It refers to that disk is rammed under inner tamping tube when being pulled out on inner tamping tube that the inner cavity, which disengages, is fallen along inner tamping tube side channel hole, even Fishplate bar, which synchronizes, to fall, and side channel hole is opened;Fall at the inner and outer pipes cavity refers to that inner tamping tube inner cavity feeds intake height more than inner tamping tube Inner cavity tapping overflows naturally;
Or charging technology method(One)The filler material is from inner tamping tube base falls:Discharging is opened up in inner tamping tube lower side Mouthful, filler material falls from discharge port.
CN201610414527.8A 2016-06-15 2016-06-15 A kind of pile construction method Active CN106013093B (en)

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CN106013093B true CN106013093B (en) 2018-09-11

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759332A (en) * 2016-12-06 2017-05-31 朱建新 The construction method and construction equipment of stake
CN109098172A (en) * 2018-09-17 2018-12-28 朱建新 The construction method of stake
CN112281841A (en) * 2020-10-22 2021-01-29 陈远 Construction method of assembled deep foundation pile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB402799A (en) * 1932-05-09 1933-12-11 Marcel Gallai Hatchard Improvements relating to piling foundations
GB862630A (en) * 1959-07-09 1961-03-15 Dicht Ag Method of and apparatus for the construction of piles cast in situ from concrete
CN100434597C (en) * 2006-08-25 2008-11-19 中机工程勘察设计研究院 Construction method of immersed tube club-footed bored concrete pile
CN102226341A (en) * 2011-04-25 2011-10-26 朱建新 Construction method for piles
CN102733377B (en) * 2012-04-25 2014-01-29 王继忠 Method for constructing concrete pile
CN105350525A (en) * 2015-11-09 2016-02-24 朱建新 Construction method for piles

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