CN105780763B - Mesoporous vibrates the construction method of casing retaining wall long auger guncreting pile - Google Patents

Mesoporous vibrates the construction method of casing retaining wall long auger guncreting pile Download PDF

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Publication number
CN105780763B
CN105780763B CN201510895397.XA CN201510895397A CN105780763B CN 105780763 B CN105780763 B CN 105780763B CN 201510895397 A CN201510895397 A CN 201510895397A CN 105780763 B CN105780763 B CN 105780763B
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long
mesoporous
casing
vibration
drilling machine
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CN105780763A (en
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白培中
白鹏辉
张彦峰
刘明利
石磊
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Henan Jinyuan Foundation Engineering Co Ltd
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Henan Jinyuan Foundation Engineering Co Ltd
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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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/04Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts

Abstract

The invention belongs to the construction methods that mesoporous vibrates casing retaining wall long auger guncreting pile, including:Surveying setting-out fixed pile makes long-spiral drilling machine align piles position;Start long-spiral drilling machine driving auger stem and drill bit rotary drilling vertically downward;Meanwhile starting mesoporous vibration hammer driving casing and following up vertically downward, with proceeding to predetermined stake end depth;Auger stem idle running discharge bottom dregs;Drilling rod is promoted, concrete is fed into stake holes internal pressure, the guncreting when carrying auger stem after carrying auger stem to predetermined altitude, stops concrete perfusion;After the completion of perfusion, casing is made to stay in stake, long-spiral drilling machine is removed into stake holes position, is inserted into joint bar device in the concrete being perfused in vibration together together with steel reinforcement cage with crane;After steel reinforcement cage is inserted to predetermined depth, joint bar device is extracted, casing is extracted completely, bored concrete pile coagulation forming;The present invention has many advantages, such as that filling quality of pile height, construction safety, of low cost, speed is fast, environmentally friendly, result is practical.

Description

Mesoporous vibrates the construction method of casing retaining wall long auger guncreting pile
Technical field
The present invention relates to building foundation engineering technical fields more particularly to a kind of mesoporous to vibrate casing retaining wall long auger The construction method of guncreting pile.
Background technology
Bored concrete pile have in construction it is without friction, without squeezing soil, noise is small, is suitable for and is used in City Building City Regions Advantage obtains relatively broad application in construction projects.According to the difference of pore-forming technique, bored concrete pile can be divided into drill-pouring Stake, driven cast-in-place pile, manually digging hole filling pile etc..
Cast-in-situ bored pile refers to drills out stake holes, and the casting concrete in hole using drilling machine(Or steel is first hung in hole Muscle cage)And total replacement at stake.It is divided into whether using in mud off construction technology in drilling process according to drilling machine For two methods of mud off pore-forming and dry operation pore-forming.Wherein, holing with slurry wall protection bored concrete pile is to utilize water hammer drill pore-forming, is Not collapse hole is avoided in drilling, mud off must be carried out first, soil, which become mud, using water cycle carries out displacement pore-forming, mud Slurry proportion is crucial, and by hole flushing after pore-forming, then descending reinforcing cage, downcomer are irrigated concrete.Although such pile work The advantages of skill need not excessively consider the excavation situation of foundation pit and adapt to the building of various geological conditions and different scales, but It is that holing with slurry wall protection piling quality is congenital there are problem, such as stake end easy tos produce sediment, the outside of stake forms mud layer, The raising aspect of end bearing capacity and sidewall resistance after pile is greatly affected.Secondly, slurry drilled pile output A large amount of mud influence site operations, need outward transport to discharge, and transport to any one place and all there is secondary pollution, and for a long time not It is dry, it is difficult to handle.Again, slurry drilled pile needs take a substantial amount of time, for example, the mud of stake diameter 600mm, the long 25m of stake It is 4-5 piles to starch 24 hours one day pile quantity of retaining wall cast-in-situ bored pile, and the economic cost to caused by is very high and potential The fatigue strength for increasing worker.In comparison, widely applied " long spire in the current industry of operation pore-creating filling pile-is done Drilled press-grouting pile(Steel reinforcement cage is inserted afterwards)" construction technology, mud off is not needed, fundamentally solves the problems, such as mud contamination, And pile-forming speed improves 4-5 times compared to slurry drilled pile, and 24 hours pile 16-20 roots or so greatly reduce economy Cost, this pile-forming speed also substantially reduce the duration.Secondly, such technique is not limited by level of ground water, low noise, vibration Small advantage.However, long auger guncreting pile construction technology is very high to the excavation condition requirement of foundation pit, in general, this If kind of a construction technology is constructed in rich groundwater buried depth than shallower region, it should first carry out excavation supporting precipitation, be excavated to and set Count absolute altitude.If excavation of foundation pit is not excavated to designed elevation not in time or, such technique can waste a large amount of concrete, to increase Unnecessary cost of investment;If precipitation is not in time, drilling equipment can be caused to fall into machine, increase the security risk of construction, but it is long-term Precipitation increases the cost of construction unit again.
Driven cast-in-place pile refers to is constructed using two methods of hammering pore-forming piling method or vibration sinking tube piling method, will carry flap valve The steel sleeve of formula pile top or precast reinforced concrete pile boots is sunk in soil, then side casting concrete(Or steel is first put into pipe Muscle cage), side hammer hits or vibrates stake made of the tube drawing of side.This construction method is suitable in the feelings for having silt, clay, muck soil Condition is constructed.With general cast-in-situ bored pile ratio, driven cast-in-place pile avoid general Pile end sediment it is blocked up caused by stake The problem of body sinks, and vertical bearing capacity cannot meet design requirement, while pile body side friction power is effectively improved by mud shadow It rings, in addition, the technique also more saves material.But the immersed tube bored pile driving construction of tradition is influenced in many ways, geological conditions, machinery itself Defect etc., construction quality is not easy to control, and tube drawing is too fast to be easy to cause stake shortea, and due to being Squeezing Soil Pile, pours be poured in advance Stake be vulnerable to soil compaction effect and generate inclined fracture even misplace.Since in work progress, hammering will produce loud noise, shake It is dynamic to influence Adjacent Buildings, therefore it is less compliant in urban district utilization, have some cities and is forbidden to use in urban district.
Manually digging hole filling pile refers to stake holes and carries out pore-forming using hand digging method, then places steel reinforcement cage, pours coagulation Stake made of soil.Manual digging pile construction is convenient, does not need heavy mechanical equipment, and caisson is than concrete driven pile antidetonation energy Power is strong, and cost is saved, to be used widely in highway, civil buildings.But caisson underground work condition is poor, environment is disliked It is bad, labor intensity is big, safety and quality are particularly important.Secondly, stake holes will conscientiously study geologic information before excavating, analytically Matter situation should formulate targetedly safety measure to the quicksand, the stream mud and situations such as pernicious gas that are likely to occur.Again, manually Caisson is generally relatively large in diameter, most thin also in 800mm or more, so the pile foundation for general diameter in industry is not applicable. In addition, because construction method is completely manually in underground work shoveling thus, there are collapse hole danger, construction technology safety accident frequencies Numerous, many cities forbid constructing in plain text.
In conjunction with cast-in-place pile construction method commonly used in above-described industry, it can be seen that slurry drilled pile with And manually digging hole filling pile takes, is effort, uneconomical, but for the of less demanding of excavation of foundation pit;In contrast, long screw auger Hole guncreting pile and driven cast-in-place pile use mechanical equipment pore-forming, time saving, laborsaving, efficient, saving cost, but it is applicable in completely Condition be to be excavated to designed elevation and the foundation pit of precipitation.
Invention content
Present invention aims to overcome that the deficiencies in the prior art and provide mesoporous vibration casing retaining wall long spire The construction method of drilled press-grouting pile, quality of pile height, construction safety, of low cost, speed is fast, environmentally friendly, result with filling by the present invention The advantages that practical.
The object of the present invention is achieved like this:A kind of construction party of mesoporous vibration casing retaining wall long auger guncreting pile Method includes the following steps:
Step 1), surveying setting-out fixed pile, long-spiral drilling machine connect and drive auger stem and drill bit, mesoporous vibration hammer to connect Vibration casing is connect, long-spiral drilling machine is arranged above mesoporous vibration hammer, the long-spiral drilling machine, auger stem, mesoporous vibration Hammer and casing are axially coincident;Mobile and leveling long-spiral drilling machine, makes long-spiral drilling machine align piles position;
Step 2), behind long-spiral drilling machine align piles position, start long-spiral drilling machine driving auger stem and drill bit vertically downward Rotary drilling;While long-spiral drilling machine is drilled down into, starts mesoporous vibration hammer driving casing and vibrate follow-up vertically downward, it is long Twist bit, mesoporous vibration hammer and casing are axially coincident, with proceeding to predetermined stake end depth;
Step 3), be drilled into predetermined design hole depth, auger stem idle running discharge bottom dregs;
Step 4), promoted drilling rod, concrete is fed into stake holes internal pressure by auger stem, filling is pressed when carrying auger stem Concrete after carrying auger stem to predetermined altitude, stops concrete perfusion;
Step 5), after the completion of perfusion, mesoporous vibration hammer disengages hydraulically operated fixture connection, so that casing is stayed in stake, by long spire Drilling machine removes stake holes position, and long-spiral drilling machine is provided with cleaner, and cleaner includes cleaning rod and is arranged on cleaning rod clear Brush head is managed, one end of cleaning rod is arranged on long-spiral drilling machine, and cleaning rod can be 0 ° -180 ° with horizontal hunting, clear using cleaner Drill bit is managed, with dregs around excavator cleaning stake position, the joint bar device for being connected small vibration hammer with crane is together with steel reinforcement cage together side Vibration side is inserted into the concrete being perfused;After steel reinforcement cage is inserted to predetermined depth, joint bar device is extracted completely in vibration;
Step 6), long-spiral drilling machine moves to stake position again, start hydraulically operated fixture, clamp casing, in vibration by casing It extracts completely, bored concrete pile coagulation forming.
In the step 4 when carrying auger stem when guncreting, the height of drill bit has consistently lower than poured into coagulation The height of soil.
The vibration is to exempt to resonate.
The vibration frequency of the mesoporous vibration hammer is the r/min of 800r/min ~ 1200, and exciting force is 600KN ~ 800KN.
The vibration frequency of the small vibration hammer is the r/min of 700r/min ~ 1000, and exciting force is 100KN ~ 200KN.
The present invention has following good effect:
1, drilling rod is driven using long-spiral drilling machine, while using the driving casing construction of mesoporous vibration hammer, first, drilling and shield Wall is carried out at the same time, and simplifies the construction of holing with slurry wall protection bored concrete pile, saves time, labour and transport mud cost and mud The secondary pollution of slurry;
2, outer tube panelling construction is crept into using long screw drill rod, ensure that the construction quality of bored concrete pile, it is ensured that Bu Huikuo Diameter, undergauge, broken pile improve rate of penetration, realize high efficiency pore-forming;
3, the threaded drillpipe of drilling machine is identical as casing longitudinal center line, and is drilled down into simultaneously, therefore borehole shape is regular, at Hole quality can be protected;On the other hand, casing follows up with drilling rod, can play the role of retaining wall, and can ensure Under the non-excavation condition of foundation pit, empty stake part also can carry out retaining wall using casing, so the collapse hole accident of traditional bored concrete pile is avoided, And instead of mud, transport mud expense cost is saved, environmental pollution is avoided;
4, mesoporous vibration hammer pulls out casing in vibration, and the process of vibration increases the compactness of concrete, therefore, bored concrete pile Pile quality it is more guaranteed, vertical bearing capacity and horizontal shear strength to stake are all strengthened raising.
Description of the drawings
Fig. 1 is the equipment connection diagram for the construction method that mesoporous vibrates casing retaining wall long auger guncreting pile.
Fig. 2 is the drilling schematic diagram for the construction method that mesoporous vibrates casing retaining wall long auger guncreting pile.
Fig. 3 is the filling mechanism schematic diagram for the construction method that mesoporous vibrates casing retaining wall long auger guncreting pile.
Fig. 4 is the slotting basket structure schematic diagram for the construction method that mesoporous vibrates casing retaining wall long auger guncreting pile.
Fig. 5 is the plug muscle device structural scheme of mechanism for the construction method that mesoporous vibrates casing retaining wall long auger guncreting pile.
Fig. 6 is that mesoporous vibrates the construction method of casing retaining wall long auger guncreting pile and pulls out casing structural scheme of mechanism.
Fig. 7 is the pile structural scheme of mechanism for the construction method that mesoporous vibrates casing retaining wall long auger guncreting pile.
Specific implementation mode
Embodiment 1, shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, mesoporous vibrates casing retaining wall long auger Main mechanical and auxiliary needed for guncreting pile construction include:It is long-spiral drilling machine 1, mesoporous vibration hammer 2, casing 3, joint bar device 8, small Vibration hammer 7;Accessory machinery includes:Crane 10, concrete pump 4, excavator.The installation of mechanical equipment with connect packet Contain:Long-spiral drilling machine 1 connects and drives auger stem 5 and drill bit 6;Cleaner 12, mesoporous vibration are provided on long-spiral drilling machine Hammer 2 clamps casing 3 with hydraulically operated fixture 13, and the auger stem 5, drill bit 6, mesoporous vibration hammer 2 and casing 3 are in axial weight It closes;Small vibration hammer 7 connects and drives joint bar device 8;Concrete pump 4 connects long-spiral drilling machine 1, and concrete 11 is transported to spiral shell In rotary drill bar, crane 10 hangs steel reinforcement cage 9.
Mesoporous vibrates casing retaining wall long auger guncreting pile construction technology:Surveying setting-out fixed pile-movement long spire Drilled as holes under drilling machine align piles position, leveling-startup mesoporous vibration hammer cylinder-wall protecting-is drilled into predetermined stake bottom idle running borehole cleaning-and carries It bores, starts concrete mixer, by long screw auger center drill rod to internal pressure concrete perfusion, press concrete to perfusion in Ti Zuan The professional joint bar device of predetermined absolute altitude-use is inserted into steel reinforcement cage to predetermined cage top absolute altitude, extracts special joint bar device-vibration and extracts shield Cylinder-pile.
1), surveying setting-out fixed pile, long-spiral drilling machine connect and drive auger stem and drill bit, mesoporous vibration hammer hydraulic pressure Clamp casing, the long-spiral drilling machine, auger stem, mesoporous vibration hammer and casing are axially coincident;Mobile and leveling is long Twist bit makes long-spiral drilling machine align piles position;
2), behind long-spiral drilling machine align piles position, start long-spiral drilling machine driving auger stem and drill bit rotate vertically downward Drilling;While long-spiral drilling machine is drilled down into, starts mesoporous vibration hammer driving casing and vibrate follow-up, long spire vertically downward Drilling machine, mesoporous vibration hammer and casing are axially coincident, and with proceeding to predetermined stake end depth, the vibration frequency of mesoporous vibration hammer is 1000 R/min, exciting force 786KN;
3), be drilled into predetermined design hole depth, auger stem idle running discharge bottom dregs;
4), promote drilling rod, concrete is fed into stake holes internal pressure by auger stem, pressure fills while promoting auger stem Concrete needs to ensure the height that the height of drill bit is consistently lower than penetration concrete in perfusion, carries auger stem to predetermined height After degree, stop concrete perfusion;
5), after the completion of perfusion, disengage hydraulically operated fixture connection, casing made to stay in stake, long-spiral drilling machine is removed into stake holes position It sets, cleaner is provided on long-spiral drilling machine, cleaner is moved into side when auger stem works, avoids touching auger Bar after completing work, continues to drive auger stem rotation, by cleaner horizontal hunting to the position with bit contact, pass through The power cleaner of rotation removes the dregs on drill bit, reduces labour.Then with dregs around excavator cleaning stake position, with hanging Vehicle slings small vibration hammer, and small vibration hammer driving joint bar device is inserted into the concrete being perfused in vibration together together with steel reinforcement cage In;After steel reinforcement cage reaches precalculated position, joint bar device is extracted, the vibration frequency of small vibration hammer is 950r/min, and exciting force is 140KN;
6), long-spiral drilling machine moves to stake position again, start hydraulically operated fixture, connect casing, it is in vibration that casing is complete It extracts, bored concrete pile coagulation forming.
It is learnt in summary with practice, drilling rod is driven using long-spiral drilling machine power head, while driving using mesoporous vibration hammer Dynamic casing construction, first, drilling and retaining wall are carried out at the same time, and simplify the construction of holing with slurry wall protection bored concrete pile, save the time, Labour and transport mud cost;Secondly, outer tube panelling construction is crept into using long screw drill rod, ensure that the construction matter of bored concrete pile Amount, it is ensured that will not expanding, undergauge, broken pile, improve rate of penetration, realize high efficiency pore-forming;Again, the threaded drillpipe of drilling machine with Casing longitudinal center line is identical, and is drilled down into simultaneously, therefore borehole shape is regular, and hole quality can be protected;Another party Face, casing follow up with drilling rod, can play the role of retaining wall, and can ensure under the non-excavation condition of foundation pit, empty stake part Also retaining wall can be carried out using casing, so avoiding the collapse hole accident of traditional bored concrete pile, and instead of mud, saves transport mud Expense cost is starched, environmental pollution is avoided;Finally, mesoporous vibration hammer pulls out casing in vibration, and the process of vibration increases concrete Compactness, therefore, the pile quality of bored concrete pile is more guaranteed, and the vertical bearing capacity and horizontal shear strength to stake are all added It is strong to improve.The quality of pile of the present invention is more guaranteed, construction is safer, cost is more economical, speed faster, more environmentally-friendly, result Construction procedure that is more practical and simplifying traditional bored concrete pile.
Examples detailed above is only the preferred embodiment of the present invention, is not intended to limit the invention, for the technology of this field For personnel, the invention may be variously modified and varied, all within the spirits and principles of the present invention, made by any repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (5)

1. a kind of construction method of mesoporous vibration casing retaining wall long auger guncreting pile, includes the following steps:
Step 1), surveying setting-out fixed pile, long-spiral drilling machine connect and drive auger stem and drill bit, the connection of mesoporous vibration hammer to shake Dynamic casing, long-spiral drilling machine are arranged above mesoporous vibration hammer, the long-spiral drilling machine, auger stem, mesoporous vibration hammer and Casing is axially coincident;Mobile and leveling long-spiral drilling machine, makes long-spiral drilling machine align piles position;
Step 2), behind long-spiral drilling machine align piles position, start long-spiral drilling machine driving auger stem and drill bit rotate vertically downward Drilling;While long-spiral drilling machine is drilled down into, starts mesoporous vibration hammer driving casing and vibrate follow-up, long spire vertically downward Drilling machine, mesoporous vibration hammer and casing are axially coincident, with proceeding to predetermined stake end depth;
Step 3), be drilled into predetermined design hole depth, auger stem idle running discharge bottom dregs;
Step 4), promoted drilling rod, concrete is fed into stake holes internal pressure by auger stem, press when carrying auger stem filling coagulation Soil after carrying auger stem to predetermined altitude, stops concrete perfusion;
Step 5), after the completion of perfusion, mesoporous vibration hammer disengages hydraulically operated fixture connection, so that casing is stayed in stake, by long-spiral drilling machine Remove stake holes position, long-spiral drilling machine is provided with cleaner, and cleaner includes cleaning rod and the cleaning brush that is arranged on cleaning rod One end of head, cleaning rod is arranged on long-spiral drilling machine, and cleaning rod can be 0 ° -180 ° with horizontal hunting, is cleared up and is bored using cleaner Head is vibrated the joint bar device of small vibration hammer linking together with steel reinforcement cage together side with crane with dregs around excavator cleaning stake position Side is inserted into the concrete being perfused;After steel reinforcement cage is inserted to predetermined depth, joint bar device is extracted completely in vibration;
Step 6), long-spiral drilling machine moves to stake position again, start hydraulically operated fixture, clamp casing, it is in vibration that casing is complete It extracts, bored concrete pile coagulation forming.
2. the construction method of mesoporous vibration casing retaining wall long auger guncreting pile according to claim 1, feature exist In:In the step 4 when carrying auger stem when guncreting, the height of drill bit is consistently lower than the height of penetration concrete Degree.
3. the construction method of mesoporous vibration casing retaining wall long auger guncreting pile according to claim 1, feature exist In:The vibration is to exempt to resonate.
4. the construction method of mesoporous vibration casing retaining wall long auger guncreting pile according to claim 1, feature exist In:The vibration frequency of the mesoporous vibration hammer is the r/min of 800r/min ~ 1200, and exciting force is 600KN ~ 800KN.
5. the construction method of mesoporous vibration casing retaining wall long auger guncreting pile according to claim 1, feature exist In:The vibration frequency of the small vibration hammer is the r/min of 700r/min ~ 1000, and exciting force is 100KN ~ 200KN.
CN201510895397.XA 2015-12-08 2015-12-08 Mesoporous vibrates the construction method of casing retaining wall long auger guncreting pile Active CN105780763B (en)

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Publication number Priority date Publication date Assignee Title
CN106351575A (en) * 2016-11-07 2017-01-25 赵宽学 Hole-protecting and pile-drilling method
CN106930274B (en) * 2017-03-28 2019-02-12 东南大学 A kind of a full set of cylinder rotatory boring castinplace pile construction method that reinforcing bar cage location is fixed
CN108547301A (en) * 2018-04-13 2018-09-18 云南建投基础工程有限责任公司 A kind of long auger guncreting pile construction method having negative dead band
CN111005374A (en) * 2019-11-27 2020-04-14 亨通海洋工程有限公司 Construction process for replacing slurry retaining wall
CN112030961B (en) * 2020-08-07 2021-11-02 湖北中南岩土工程有限公司 Vibration pipe following construction process for long spiral cast-in-place pile
CN112302003A (en) * 2020-10-23 2021-02-02 浙江迅犀建设有限责任公司 Construction method of large-diameter long spiral full-casing pressure-grouting pile for sludge stratum

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GB385647A (en) * 1931-07-11 1933-01-05 British Steel Piling Co Ltd Improvements in or relating to the construction of concrete piles
JPS6013118A (en) * 1983-07-04 1985-01-23 Matsuzawa Kiko:Kk Pile erection work and excavation head for forming consolidated perforated wall therefor
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CN103711121A (en) * 2014-01-16 2014-04-09 上海强劲地基工程股份有限公司 Construction method for undisturbed soil pressure irrigation concrete pile with down-mounted pile top
CN104196015A (en) * 2014-09-28 2014-12-10 江西中恒岩土工程技术有限公司 Construction method for empty hole through long spiral drilled press-grouting pile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB385647A (en) * 1931-07-11 1933-01-05 British Steel Piling Co Ltd Improvements in or relating to the construction of concrete piles
JPS6013118A (en) * 1983-07-04 1985-01-23 Matsuzawa Kiko:Kk Pile erection work and excavation head for forming consolidated perforated wall therefor
CN1227300A (en) * 1998-02-27 1999-09-01 中国建筑科学研究院地基基础研究所 Construction technology and apparatus for vibrated deposited pile in hole drilled by long screw auger
CN103711121A (en) * 2014-01-16 2014-04-09 上海强劲地基工程股份有限公司 Construction method for undisturbed soil pressure irrigation concrete pile with down-mounted pile top
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