CN106013093A - Pile construction method - Google Patents

Pile construction method Download PDF

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Publication number
CN106013093A
CN106013093A CN201610414527.8A CN201610414527A CN106013093A CN 106013093 A CN106013093 A CN 106013093A CN 201610414527 A CN201610414527 A CN 201610414527A CN 106013093 A CN106013093 A CN 106013093A
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China
Prior art keywords
tube
tamping tube
inner tamping
dish
inserts
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CN201610414527.8A
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CN106013093B (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

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a pile construction method. The pile construction method comprises a placing step and a tube sinking step; a tube sinking method comprises the following steps: starting inner tubes in a pressurizing and static pressure system and a tube sinking system of pile working equipment; performing interactive pressurization and internal ramming; sinking the tube sinking system to a set depth. The pile construction method has the advantages of improving the tube sinking technique and the feeding technique and improving the work efficiency, and is a new pile construction technology which is controllable in process and reliable in quality.

Description

A kind of pile construction method
Technical field
The present invention relates to the construction method of a kind of.
Background technology
Existing static pressure cast stake, prefabricated pile, club-footed pile, the construction technology of composite pile, wherein hidden pipe pile technique, base expanding and base expanding technique, charging technology, core-inserting pile technique haves much room for improvement, and ergonomicity has much room for improvement.
Existing pile press machine maximum pile driving pressure 1200 tons (deadweight+counterweight), maximum extract force 800 tons, maximum 1200+800=2000 ton at full capacity, general place is difficult to meet construction requirement.
Summary of the invention
It is an object of the invention to provide a kind of easy construction, the construction method of the stake of the few counterweight of pile press machine.
The technical solution of the present invention is:
The construction method of a kind of, including in place, immersed tube step, is characterized in that: immersed tube method:
Start the inner tube pressurizeed in static-pressure system and immersed tube system of stake construction equipment, mutual pressurization and interior rammer, immersed tube system is sunk down into set depth;Concrete grammar includes:
A) ram the following length of dish on inner tube hammer and be not more than outer length of tube, on the premise of stake machine deadweight counterweight can meet pile driving pressure, mutual pressurization and interior rammer;On the premise of stake machine deadweight counterweight can not meet pile driving pressure, interior rammer sinks;
B) ramming the following length of dish on inner tamping tube hammer and be more than outer length of tube, on the premise of stake machine deadweight counterweight can meet pile driving pressure, mutual pressurization is rammed with interior;On the premise of stake machine deadweight counterweight can not meet pile driving pressure, inside ram sinking.
After immersed tube, first carry out base expanding and base expanding, then pour;Described pour for: above put forward inner tamping tube system, pour pile body or transfer precast pile;Immersed tube system is to set single steel outer tube of rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube external diameter is less than outer tube diameter;
The method of base expanding and base expanding is: by setting inventory, and the height H=that feeds intake feeds intake volume V, puts into inserts;Inner tamping tube top sets not less than ramming dish on outer tube diameter, and inner tamping tube bottom sets no more than rams dish under outer tube diameter;Upper and lower dish of ramming forms inner tamping tube hammer with inner tamping tube;One of charging technology following two kinds of methods of employing or two kinds of method compound uses:
(1) inner tamping tube inner chamber charging technology:
Inserts is dosed to inner tamping tube inner chamber, when being dosed to inner tamping tube inner chamber, uses and feed intake from inner tamping tube top open part or feed intake at inner tamping tube lateral opening hole;Then outer tube is pulled out on to certain altitude h >=0, on carry inner tamping tube, inserts from inner tamping tube base falls, by embrace pressure, top pressure or counter-pressure method pressurizes repeatedly and/or in ram inserts, on to pull up plug in outer tube to distance C at the bottom of stake be 10-30cm, form resistance to compression, resistance to plucking enlarged footing;
(2) inner and outer pipes cavity charging technology: the cavity that inserts is dosed between inner and outer pipes;Ram under inner tamping tube and discharging structure is set on dish, and discharging structure gear re-entrant portion between inner and outer pipes when inner tamping tube is pressed down, stopping discharging, when inner tamping tube carries, discharging structure opens discharging;By embrace pressure, top pressure or counter-pressure method pressurizes repeatedly and/or in ram inserts, above pulling up plug in outer tube to distance C at the bottom of stake is 10-30cm, formation resistance to compression, resistance to plucking enlarged footing.
Described discharging structure includes annular to be arranged under inner tamping tube ramming the dentation flap valve of disc main body periphery, dentation flap valve with under ram disk activity and be connected;Pressing under inner tamping tube, the soil body rams dish under top, dentation flap valve level, to opening gear re-entrant portion between inner and outer pipes, is formed and rams dish under major diameter, and now dentation flap valve stops discharging;Carry on inner tamping tube, under ram dish and leave the soil body, dentation flap valve annular naturally falls, and is formed and rams dish under minor diameter, is not stopped by the cavity between inner and outer pipes, smooth discharging.
Under ram dish use steel plate back cover, described steel plate is for spending poroid, loose-leaf shape or flap valve shape.
Charging technology method (one) described inserts from inner tamping tube base falls is: inserts under ram at disc floret hole, loose-leaf opens place, flap valve shape opens place, fall at inner chamber disengagement or at inner and outer pipes cavity;Offer side channel hole in inner tamping tube bottom, under ram that dish and connecting plate are fixing to be connected, connecting plate covering is on described side channel hole, and connecting plate top is fixedly mounted with the bolt that can move up and down in side channel hole;Described inner chamber disengages when referring to that ramming dish under inner tamping tube pulls out on inner tamping tube, falls along inner tamping tube side channel hole, and connecting plate synchronizes, and side channel hole is opened;Fall at described inner and outer pipes cavity to referring to inner tamping tube inner chamber to feed intake highly that exceeding inner tamping tube inner chamber tapping overflows naturally;
Or charging technology method (one) described inserts from inner tamping tube base falls is: offer discharging opening in inner tamping tube lower side, inserts falls from discharging opening.
Present invention improves over single immersed tube technique, add single tube, two-tube, the warehouse section that fetches earth fetches earth, full soil extracting process and pressure fill, pre-stirring concrete earth mixture technique;Add down-hole hammer impacting with high pressure underground obstacle and down-hole hammer high-pressure rotary-spray cement industry;It is compounded with pressurization and the mutual technique of interior rammer, the integration of the mutual technique of interior rammer, vibratory process;Few counterweight even zero counterweight of pile press machine, also can normal immersed tube, be greatly improved work efficiency.
Present invention improves over the discharging technology that feeds intake, on the basis of original inner tamping tube hammer inner chamber charging technology;Add inner and outer pipes cavity charging technology, and improve corresponding discharging technology, and compound inner tamping tube hammer inner chamber charging technology and inner and outer pipes cavity charging technology;Substantially increase work efficiency.
Present invention improves over base expanding and base expanding technique, on the basis of present single inner tamping tube pressurization inserts base expanding and base expanding, add inner and outer pipes immersed tube system base expanding and base expanding;On the basis of present single inner tamping tube pressing technology, add and ram, it is compounded with pressurization, interior rammer, rams technique, repeatedly pressurizes in pressurization, inside ram, mutual pressurization, in ram, inner and outer pipe is pulled up slotting, forms resistance to compression resistance to plucking enlarged footing, by setting coefficient, the size shape of enlarged footing can be controlled, form rammed bulb pile, moreover it is possible to control the compacted degree of enlarged footing surrounding soil, form carrier pile, the size of terminal piling pressure can also be controlled, estimate 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, improve work efficiency, be that a kind of flow process is controlled, the static-pressure expanding bottom pile new technique of reliable in quality.
Below in conjunction with embodiment, the invention will be further described.
Detailed description of the invention
A kind of construction method of, including
(1) in place: equipment immersed tube system is located on the stake position set, or the stake position nearside constructed, or the center, cement earth pile position constructed;Stake can bury shoe underground on position in advance;
(2) immersed tube: equipment immersed tube system is sunk down into set depth;
(3) pour: above put forward inner tamping tube system, pour pile body or transfer precast pile;
(4) tube drawing: to prefabricated pile: extract outer tube, fills in full by space inserts, firming agent around prefabricated pile pile body, 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;
Immersed tube system in step () is to set single steel outer tube of rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube external diameter is less than outer tube diameter;
Immersed tube method:
Start the inner tube pressurizeed in static-pressure system and immersed tube system of stake construction equipment, mutual pressurization and interior rammer, immersed tube system is sunk down into set depth;Concrete grammar includes:
A) ram the following length of dish on inner tube hammer and be not more than outer length of tube, on the premise of stake machine deadweight counterweight can meet pile driving pressure, mutual pressurization (pressurization immersed tube system is sunk) and interior rammer (above carry inner tamping tube hammer, freely falling body, inner tamping tube hammer is rammed dribbling and moves outer tube and sink together);Stake machine deadweight be on the premise of counterweight can not meet pile driving pressure, interior rams (above carrying inner tamping tube hammer, freely falling body, inner tamping tube hammer is rammed dribbling and moves outer tube and sink together);
B) the following length of dish is rammed more than outer length of tube on inner tamping tube hammer, on the premise of stake machine deadweight counterweight can meet pile driving pressure, mutual pressurization (pressurization immersed tube system is sunk) (above carries inner tamping tube hammer, freely falling body with interior ramming, the soil body under the first punching outer spout of inner tamping tube hammer or soil-cement body, then on ram dribbling and move outer tube and sink together);Stake machine deadweight be on the premise of counterweight can not meet pile driving pressure, inside ram sinkings (above carry inner tamping tube bell, freely falling body, the soil body under inner tamping tube hammer elder generation punching outer spout or soil-cement body, then on ram dribbling and move outer tube and sink together).
After immersed tube, first carry out base expanding and base expanding, then pour;Immersed tube system is to set single steel outer tube of rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube external diameter is less than outer tube diameter;
The method of base expanding and base expanding is: by setting inventory, and the height H=that feeds intake feeds intake volume V, puts into inserts;Both can with immersed tube time feed intake, it is also possible to feed intake during base expanding and base expanding, with throwing, it is ensured that feed synchronizes in time, save for the first time and component feeds intake by several times each time time, substantially increase work efficiency.Inner tamping tube top sets not less than ramming dish on outer tube diameter, and inner tamping tube bottom sets no more than rams dish under outer tube diameter;Upper and lower dish of ramming forms inner tamping tube hammer with inner tamping tube;Inner tamping tube hammer built-in from dropping hammer, hydraulic hammer, automatic mallet, down-hole hammer or diesel hammer.Charging technology uses one of following two kinds of methods or two kinds of methods to be combined and use simultaneously:
(1) inner tamping tube inner chamber charging technology:
Inserts is dosed to inner tamping tube inner chamber, when being dosed to inner tamping tube inner chamber, uses and feed intake from inner tamping tube top open part or feed intake at inner tamping tube lateral opening hole;Then outer tube is pulled out on to certain altitude h >=0, on carry inner tamping tube, inserts from inner tamping tube base falls, by embrace pressure, top pressure or counter-pressure method pressurizes repeatedly and/or in ram inserts, on to pull up plug in outer tube to distance C at the bottom of stake be 10-30cm, form resistance to compression, resistance to plucking enlarged footing;
(2) inner and outer pipes cavity charging technology: inner and outer pipes cavity charging technology: the cavity that inserts is dosed between inner and outer pipes;Ram under inner tamping tube and discharging structure is set on dish, and inner tamping tube discharging structure gear re-entrant portion (can be all to close the cavity between cavity or the partially enclosed inner and outer pipes between inner and outer pipes) between inner and outer pipes when pressing down, stopping discharging, when inner tamping tube carries, discharging structure opens discharging;By embrace pressure, top pressure or counter-pressure method pressurizes repeatedly and/or in ram inserts, above pulling up plug in outer tube to distance C at the bottom of stake is 10-30cm, formation resistance to compression, resistance to plucking enlarged footing.
Described discharging structure includes annular to be arranged under inner tamping tube ramming the dentation flap valve of disc main body periphery, dentation flap valve with under ram disk activity and be connected;Pressing under inner tamping tube, the soil body rams dish under top, dentation flap valve level, to opening gear re-entrant portion between inner and outer pipes, is formed and rams dish under major diameter, and now dentation flap valve stops discharging;Carry on inner tamping tube, under ram dish and leave the soil body, dentation flap valve annular naturally falls, and is formed and rams dish under minor diameter, is not stopped by the cavity between inner and outer pipes, smooth discharging.Ensure that inner and outer pipes cavity goes down the discharge space of dish to greatest extent, thin mixture energy discharging in cement mortar, in concrete, thick mixture also can discharging;
Under ram dish use steel plate back cover, described steel plate is for spending poroid, loose-leaf shape or flap valve shape.
Charging technology method (one) described inserts from inner tamping tube base falls is: inserts under ram at disc floret hole, loose-leaf opens place, flap valve shape opens place, fall at inner chamber disengagement or at inner and outer pipes cavity;Offer side channel hole in inner tamping tube bottom, under ram that dish and connecting plate are fixing to be connected, connecting plate covering is on described side channel hole, and connecting plate top is fixedly mounted with the bolt that can move up and down in side channel hole;Described inner chamber disengages when referring to that ramming dish under inner tamping tube pulls out on inner tamping tube, falls along inner tamping tube side channel hole, and connecting plate synchronizes, and side channel hole is opened;Fall at described inner and outer pipes cavity to referring to inner tamping tube inner chamber to feed intake highly that exceeding inner tamping tube inner chamber tapping overflows naturally;
Or charging technology method (one) described inserts from inner tamping tube base falls is: offer discharging opening in inner tamping tube lower side, inserts falls from discharging opening.
Inner tamping tube internal upper part sets and hangs bolt.
Being embedded with sensor on outer tube and inner tamping tube, sensor acquisition pressure, pile penetration data pass through the Internet synchronous transfer to terminal.
On to ram dish be hollow annular;Steel plate back cover is used bottom inner tamping tube.
After step (four) extracts outer tube, filling in the inserts in space around pile body is one or more in middle fine grained, consolidation powder, cement, Calx, Gypsum Fibrosum, construction waste, industrial waste, cement mixture, dry and wet concrete, dry and wet cement mortar;Firming agent is to consolidate powder, cement as major ingredient, mixes the liquid of one or more in waterglass, active matter, swelled ground or powdery reinforcement of soft soil material.

Claims (5)

1. a pile construction method, including in place, immersed tube step, is characterized in that: immersed tube method:
Start the inner tube pressurizeed in static-pressure system and immersed tube system of stake construction equipment, mutual pressurization and interior rammer, immersed tube system is sunk down into set depth;Concrete grammar includes:
A) ram the following length of dish on inner tube hammer and be not more than outer length of tube, on the premise of stake machine deadweight counterweight can meet pile driving pressure, mutual pressurization and interior rammer;On the premise of stake machine deadweight counterweight can not meet pile driving pressure, interior rammer sinks;
B) ramming the following length of dish on inner tamping tube hammer and be more than outer length of tube, on the premise of stake machine deadweight counterweight can meet pile driving pressure, mutual pressurization is rammed with interior;On the premise of stake machine deadweight counterweight can not meet pile driving pressure, inside ram sinking.
The construction method of a kind of the most according to claim 1, is characterized in that: after immersed tube, first carries out base expanding and base expanding, then pours;Described pour for: above put forward inner tamping tube system, pour pile body or transfer precast pile;Immersed tube system is to set single steel outer tube of rigidity, single steel inner tamping tube and coupling arrangement;Inner tamping tube external diameter is less than outer tube diameter;
The method of base expanding and base expanding is: by setting inventory, and the height H=that feeds intake feeds intake volume V, puts into inserts;Inner tamping tube top sets not less than ramming dish on outer tube diameter, and inner tamping tube bottom sets no more than rams dish under outer tube diameter;Upper and lower dish of ramming forms inner tamping tube hammer with inner tamping tube;One of charging technology following two kinds of methods of employing or two kinds of method compound uses:
(1) inner tamping tube inner chamber charging technology:
Inserts is dosed to inner tamping tube inner chamber, when being dosed to inner tamping tube inner chamber, uses and feed intake from inner tamping tube top open part or feed intake at inner tamping tube lateral opening hole;Then outer tube is pulled out on to certain altitude h >=0, on carry inner tamping tube, inserts from inner tamping tube base falls, by embrace pressure, top pressure or counter-pressure method pressurizes repeatedly and/or in ram inserts, on to pull up plug in outer tube to distance C at the bottom of stake be 10-30cm, form resistance to compression, resistance to plucking enlarged footing;
(2) inner and outer pipes cavity charging technology: the cavity that inserts is dosed between inner and outer pipes;Ram under inner tamping tube and discharging structure is set on dish, and discharging structure gear re-entrant portion between inner and outer pipes when inner tamping tube is pressed down, stopping discharging, when inner tamping tube carries, discharging structure opens discharging;By embrace pressure, top pressure or counter-pressure method pressurizes repeatedly and/or in ram inserts, above pulling up plug in outer tube to distance C at the bottom of stake is 10-30cm, formation resistance to compression, resistance to plucking enlarged footing.
A kind of pile construction method the most according to claim 2, is characterized in that: described discharging structure includes annular to be arranged under inner tamping tube ramming the dentation flap valve of disc main body periphery, dentation flap valve with under ram disk activity and be connected;Pressing under inner tamping tube, the soil body rams dish under top, dentation flap valve level, to opening gear re-entrant portion between inner and outer pipes, is formed and rams dish under major diameter, and now dentation flap valve stops discharging;Carry on inner tamping tube, under ram dish and leave the soil body, dentation flap valve annular naturally falls, and is formed and rams dish under minor diameter, is not stopped by the cavity between inner and outer pipes, smooth discharging.
4., according to a kind of pile construction method described in Claims 2 or 3, it is characterized in that: under ram dish use steel plate back cover, described steel plate is for spending poroid, loose-leaf shape or flap valve shape.
5. according to a kind of pile construction method described in Claims 2 or 3, it is characterized in that: charging technology method (one) described inserts from inner tamping tube base falls is: inserts under ram at disc floret hole, loose-leaf opens place, flap valve shape opens place, fall at inner chamber disengagement or at inner and outer pipes cavity;Offer side channel hole in inner tamping tube bottom, under ram that dish and connecting plate are fixing to be connected, connecting plate covering is on described side channel hole, and connecting plate top is fixedly mounted with the bolt that can move up and down in side channel hole;Described inner chamber disengages when referring to that ramming dish under inner tamping tube pulls out on inner tamping tube, falls along inner tamping tube side channel hole, and connecting plate synchronizes, and side channel hole is opened;Fall at described inner and outer pipes cavity to referring to inner tamping tube inner chamber to feed intake highly that exceeding inner tamping tube inner chamber tapping overflows naturally;
Or charging technology method (one) described inserts from inner tamping tube base falls is: offer discharging opening in inner tamping tube lower side, inserts falls from discharging opening.
CN201610414527.8A 2016-06-15 2016-06-15 A kind of pile construction method Active CN106013093B (en)

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Cited By (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

Citations (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
CN1912255A (en) * 2006-08-25 2007-02-14 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
CN102733377A (en) * 2012-04-25 2012-10-17 王继忠 Method for constructing concrete pile
CN105350525A (en) * 2015-11-09 2016-02-24 朱建新 Construction method for piles

Patent Citations (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
CN1912255A (en) * 2006-08-25 2007-02-14 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
CN102733377A (en) * 2012-04-25 2012-10-17 王继忠 Method for constructing concrete pile
CN105350525A (en) * 2015-11-09 2016-02-24 朱建新 Construction method for piles

Cited By (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

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