CN106284311B - A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig - Google Patents

A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig Download PDF

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Publication number
CN106284311B
CN106284311B CN201610789624.5A CN201610789624A CN106284311B CN 106284311 B CN106284311 B CN 106284311B CN 201610789624 A CN201610789624 A CN 201610789624A CN 106284311 B CN106284311 B CN 106284311B
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stake
pore
construction
drilling
pile
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CN106284311A (en
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李吉林
郑假余
张欲晓
李志亮
游亮
张伟
孙浩钰
曹相卿
王锦刚
曹建华
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Shandong Electric Power Engineering Consulting Institute Corp Ltd
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Shandong Electric Power Engineering Consulting Institute Corp 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/003Injection of material
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • E02D2300/002Concrete

Abstract

The invention discloses a kind of dry efficient construction technologies of pore-forming cast-in-place concrete pile of rotary drilling rig, comprise the following steps:Smooth processing is carried out to construction site, foundation stabilization pretreatment is carried out to construction site after finishing;Batch carries out measuring stake position on construction ground, and stake position is checked using stake holes centralising device;It is drilled at stake position using drilling machine batch to setting hole depth, cover board is added in the aperture of the drilling of pore-forming with closed protective, the continuous construction drill in adjacent studs position;After whole equal pore-formings in stake position, cover board is removed, steel reinforcement cage is divided into drilling;Tumbling barrel and hopper are installed in drill hole;Filling concrete is carried out in drilling.The dry pore-forming technique of rotary drilling rig of the present invention, for the dry pore-creating filling pile of rotary drilling rig, mass pore-forming, pile greatly save artificial and machine cost, improve efficiency, reduce engineering cost.

Description

A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig
Technical field
The present invention relates to a kind of dry efficient construction technologies of pore-forming cast-in-place concrete pile of rotary drilling rig.
Background technology
Rotary digging drilling hole bored concrete pile is the advanced pile foundation construction engineering method developed rapidly in the recent period in China, and rotary drilling rig is applied Instrument has the various features such as efficient, low noise, environmental protection, hole quality height, mechanization degree height;Rotary drilling rig is holding for this engineering method Passerby, either external product or home equipment structure type and operation principle are similar, and rotary drilling rig is a kind of is suitble to The construction machinery of pore-forming operation in building foundation engineering suitable for cohesive soil, silt, sand, bankets, gravelly soil and decomposed rock Layer, is used widely in a variety of foundation basic constructions such as bored concrete pile, diaphragm wall, strengthening of foundation.The specified work(of rotary drilling rig Rate is generally 125~450kW, and power output torque is 120~400kNm, and maximum drilling diameter is up to 1.5~4m, most great achievement Hole depth is 60~90m, can meet the requirement of all kinds of large foundation constructions.Such drilling machine is generally stretched using hydraulic crawler Chassis, the foldable brill mast of automatic lifting, telescopic drill rod, with verticality automatic detection and adjustment, hole depth digital-scroll technique etc., complete machine It manipulates generally using Hydraulic guide control, load sensing, has the characteristics that operation is light, comfortable.Major and minor two elevators are applicable In the needs of a variety of situations in building site.Such drilling machine coordinates different drilling tools, suitable for dry type (short spiral) or wet type (rotary bucket) and The pore-forming operation of rock stratum (rock core drill) can also match somebody with somebody and hang long screw auger, diaphram wall grab bucket, vibrohammer etc., realize a variety of work( Can, it is mainly used for the bases such as urban construction, highway bridge, industry and civil buildings, diaphram wall, water conservancy, antiseepage bank protection and applies Work.
At present, the design of domestic rotary digging drilling hole bored concrete pile and most reference of constructing《Technical code for building pile foundation》(JGJ 94- 2008) perform, when rotary digging drilling hole bored concrete pile is constructed, carry out the construction of next pile again after whole processing of a pile are completed, The construction processing of a pile can only be carried out in one stake machine Same Site simultaneously, such form of construction work wastes the substantial amounts of time, Cause claim for eot, construction efficiency is low, if going wrong in current pile driving construction, construction site can only shutdown process, influence Construction progress.The technological process of the pipeline system performed per pile after the completion of pile pore-forming, and then will carry out reinforcing bar at once Cage is divided into, filling concrete pile, it is necessary to which continuous construction, centre cannot be suspended, it is impossible to it is adjusted according to construction site elasticity, it can not Preferably planning construction progress.
China is largely short using the time of rotary drilling rig, lacks the research of engineering method, there has been no job specfications;Especially rotary digging The more no specification of the dry pore-forming of drilling machine, standard are referred to perform, existing《Technical code for building pile foundation》In (JGJ 94-2008), do not have The content for having special chapters and sections to introduce the dry drilling construction of rotary digging causes design at present, construction can only be with reference to manually digging hole, mud off The technological designs such as pore-forming and implementation cause a degree of confusion.As mining of groundwater, level of ground water declined in recent years, Construction using the dry pore-forming of rotary drilling rig is more and more, therefore, carry out necessary engineering method research quite it is necessary to.Churning driven Machine is that the comparison that a type of piling machinery and civil construction and construction technology combine is close, the work of rotary drilling rig manufactory Journey technical staff should be familiar with foundation construction, and cooperation foundation construction enterprise carries out the research of drilling process, improves rotary drilling rig not With the transaction capabilities under geological conditions, in due course formulation rotary drilling rig product standard and relevant criterion;Employer's organization carries out construction The exchange of technology of experience promotes the development of rotary drilling rig product and construction.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of dry pore-forming concrete of rotary drilling rig and fill The efficient construction technology of stake is noted, for the dry pore-creating filling pile of rotary drilling rig, mass pore-forming, pile greatly save artificial and mechanical Cost improves efficiency, reduces engineering cost.
To achieve the above object, the present invention uses following technical proposals:
A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig, comprises the following steps:
Step 1:Smooth processing is carried out to construction site, batch carries out measuring stake position on construction ground, it is ensured that locates stake position In accurate position;
Step 2:Batch drills to setting hole depth, the continuous construction drill in adjacent studs position at stake position;
Step 3:Steel reinforcement cage is divided into drilling;
Step 4:Tumbling barrel and hopper are installed in drill hole;
Step 5:Filling concrete is carried out in drilling.
Each step of construction technology of the present invention is batched operation, and batch measuring stake position, pore-forming, adjacent on construction ground Stake position, the construction of drilling can be carried out continuously, and without jumping hole construction, be greatly improved work efficiency;It is used in time after the pore-forming of stake position Cover closure is protected, and can prevent aperture sundries from falling into hole;After the completion of drilling in whole stake positions, it is further continued for batch and is divided into Steel reinforcement cage, perfusion operation, a crane can meet the work requirements of more Spiral digging machines, not only improve efficiency, but also can save The use of equipment, material.
In the step 1, foundation stabilization pretreatment is carried out to construction site after the completion of smooth processing.
The step 1 measuring stake position concretely comprises the following steps:
Setting regions batch completes multiple rows of multiple row stake position measuring on construction ground, and after stake position determines, outside is carried label Reinforcing bar squeeze into below ground, pile No. and hole depth data are identified on label;By stake holes centralising device center of circle alignment stake holes center, edge Stake holes centralising device periphery limes, and spuds in dimension line as stake holes to check stake position.It, can with multiple rows of multiple row batch measuring stake position Construction efficiency is substantially improved;Carry out the processing that limes, it can be ensured that during rotary digging drill bit perforate, stake position is accurate.
The stake holes centralising device includes the outer toroid and interior annular that are arranged concentrically, connects between the outer toroid and interior annular Connect stent.Outer toroid is identical with boring aperture, and interior annular can set corresponding with drill center, can aid in whether checking stake position Accurately.
In the step 2, in construction drill to when closing on setting hole depth, drill bit of drilling machine is changed to the barrel type of bottom belt valve Drill bit continues to drill, and cover board is added with closed protective in the aperture of the drilling of pore-forming.It is dry to may insure that bottom hole can clear up Only.
In the step 2, after the completion of drilling, the sediment at drilling hole bottom is cleared up using dust catcher.
The cover board includes cover board body, and the cover board body is made of iron sheet, and steel is laid in the cover board body upper surface Muscle mesh sheet.Cover board is made of iron sheet and reinforced mesh, and lightweight is set, and can close drilling well to prevent sundries from falling into.
Preferably, in the step 3, after whole equal pore-formings in stake position, cover board is removed, steel reinforcement cage is divided into drilling.
In the step 3, before steel reinforcement cage is divided into, marker post is set in construction area surrounding, mark is set on marker post High scale controls steel reinforcement cage cage top absolute altitude by the way of bracing wire.Ensure that steel reinforcement cage cage top absolute altitude is not in deviation.
In the step 4, tumbling barrel is connected with hopper, and tumbling barrel is extended in drilling, and hopper is connected at the top of tumbling barrel, on tumbling barrel Portion is fixed with pouring stent, pour frame bottom support on the ground, tumbling barrel can at drilling orifice adjustment length.It avoids using The conduit of sealing is saved frequently in the time of aperture dismounting conduit, and charging efficiency greatly improves.
In the step 5, when carrying out filling concrete, grout pile toplap fills 0.2~0.3m, is used after being perfused to stake top Poker vibrator vibrates, it is ensured that stake top concrete compaction.
In the step 5, if having negative hole after bored concrete pile after the completion of perfusion, covered as early as possible, while to filling pile head It is protected.People, object at negative hole is avoided to fall into wherein.
Beneficial effects of the present invention are:
The dry pore-forming technique of rotary drilling rig of the present invention, embedded casing is not had to after perforate, and (general 2~3m of length, diameter is compared with stake Big 20cm in footpath or so), it is not required that hole construction is jumped, has saved the material cost of steel pile casting, improves rotary drilling rig pore-forming efficiency about 5%~10%.
The present invention is improved by steel reinforcement cage, crane efficiency after the batch pore-forming of region, is divided into batches, cost reduction, arrangement for crane machinery Expense reduces by 10% or so.
Using hopper and special tumbling barrel during present invention perfusion, batch perfusion is carried out, charging efficiency improves about 10%.
The present invention since batch is perfused, by machine-team or position left and taken by concrete test block, and the expenses such as artificial, test block test reduce About 3%~5%.
The concrete of the reduction stake top of the present invention is superfilled, and is vibrated using poker vibrator, not only ensures stake top and mixes The quality of soil is coagulated, and saves concrete material 2%~5%.
Description of the drawings
Fig. 1 is the flow diagram of construction technology of the present invention;
Fig. 2 is stake holes centralising device schematic diagram;
Fig. 3 is cover plate schematic diagram;
Fig. 4 is tumbling barrel and hopper cooperation schematic diagram;
In figure, 1. interior annulars, 2. Steel bar racks, 3. outer toroids, 4. reinforced mesh, 5. sheet irons, 6. drillings, 7. hoppers, 8. stent is poured, 9. tumbling barrels.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig, maximum feature is by tradition Pipeline system technological process transformation pore-forming, batch pile in batch technological process, greatly save manually and machine cost, Efficiency is improved, reduces engineering cost.
The present invention technological process be:Levelling of the land --- place pretreatment --- measuring stake position in batch --- hole drill in batch Proceeding to design hole depth, --- cover board protection in aperture --- divides into steel reinforcement cage --- installing tumbling barrel and hopper --- coagulation in batch in batch Soil perfusion.
Due to being dry pore-forming, the problems such as without worrying to step on hole, sediment, the present invention changes original single stake pipeline system Construction technology, the dry pore-forming of rotary drilling rig batch consider the problems such as rainy, security risk and aperture are scaling-off, lid are used rapidly after pore-forming Plate covers aperture, after a collection of stake all pore-formings, divides into steel reinforcement cage in batch, and carries out filling concrete in batch.This engineering method improves Efficiency, greatly reduce manually, machine cost, due to being that batch is perfused, also reduce the loss of concrete;Through field practice It proves, this technique reduces about 25~30% than traditional construction process costs.
Points for attention in specific construction procedure and construction are as follows:
1. carrying out smooth processing to construction site, foundation stabilization pretreatment is carried out to construction site after finishing;
It may generally be needed to solve rotary drilling rig in pore forming process there is a situation where stepping on hole before pile foundation construction Carry out foundation stabilization pretreatment to place, the mode of foundation stabilization pretreatment has back-filling in layers to roll, heavy tamping treatment etc..
2:Batch carries out measuring stake position on construction ground, and stake position is checked using stake holes centralising device;
During measuring stake position, by some region of construction site, in a row batch carries out measuring in column, after stake position determines, with 6mm's Bar dowel is driven underground, and has adhesive paper on bar dowel with data such as mark pile No., hole depths, is justified with special stake holes centralising device Heart alignment stake holes center, limes along outer toroid 3, spuds in dimension line, when so ensuring rotary digging drill bit perforate, stake position as stake holes It is accurate;
As shown in Fig. 2, stake holes centralising device includes the outer toroid 3 being arranged concentrically and interior annular 1, outer toroid 3 and interior annular 1 Between connect Steel bar rack 2.Outer toroid 3 is identical with stake position boring aperture, and 1 align piles position drill center of interior annular can aid in Whether accurate check stake position.
Step 3:It is drilled to setting hole depth using drilling machine batch at stake position, is added in the aperture of the drilling of pore-forming Cover board is with closed protective, the continuous construction drill in adjacent studs position;
Due to being the dry pore-forming of rotary drilling rig, so aperture is generally not in the problems such as stepping on hole, it need not after the perforate of stake position Embedded casing, as long as carrying out aperture cleaning in borer drilling procedure;Construction technology of the present invention need not bury casing;
In batch after pore-forming, before steel reinforcement cage is divided into, with the high-power lengthening suction pipe dust catcher of suction, cleaning eye bottom is a small amount of Sediment;
After stake position pore-forming, for security consideration and prevent aperture sundries from falling into hole, aperture in time with special cover board into Row covering, so not only eliminates security risk, even if raining without in worry rainwater access aperture;As shown in figure 3, cover board bag Cover board body is included, cover board body is made of sheet iron 5, and cover board body upper surface laying reinforced mesh 4, cover board is covered in drilling 6 At aperture.
Due to being to bore to dig the dry drilling construction of drilling machine, hole problem is stepped on without consideration hole wall, adjacent holes can continuously construct, no Excavation construction is jumped with as holing with slurry wall protection bored concrete pile;So in a row the more original jump hole construction of continuous construction carries significantly in column High work efficiency;
The dry drilling construction of rotary drilling rig, in construction to when hole depth is designed, the drill bit of drilling machine portion of refooting carries the bucket of valve Formula drill bit so can ensure that bottom hole can be cleaned out.
Step 4:After whole equal pore-formings in stake position, cover board is removed, steel reinforcement cage is divided into drilling;
Steel reinforcement cage cage top absolute altitude controls:Before steel reinforcement cage is divided into batch, on construction area setting marker post, marker post Reference mark is set, using the controlling measurement steel reinforcement cage cage top absolute altitude of bracing wire, it is ensured that steel reinforcement cage cage top absolute altitude is not in deviation;
After batch pore-forming, crane is being propped up into bore region suitable position, is dividing into steel reinforcement cage in batches;Due to being batch jobs, The configuration that previous every stake machine is equipped with a crane is changed, a crane can meet the requirement of several Spiral digging machines completely, and Crane is in a certain region, and basic not have to move crane with regard to that meet the requirements, efficiency greatly improves, mechanical equipment cost reduction 10% Left and right;Batch divides into steel reinforcement cage, with traditional handicraft per pile pore-forming after need to divide into steel reinforcement cage that there are significant differences at once;
Step 5:Tumbling barrel and hopper are installed in drill hole;
After batch has divided into steel reinforcement cage, hopper and tumbling barrel are then installed in hole, due to not being underwater grouting, so not having to Using the conduit of sealing, using the special tumbling barrel that can be controlled in aperture of scene processing, save and frequently torn open in aperture The time of conduit is unloaded, charging efficiency greatly improves;Traditional handicraft is needed using the preferable conduit of leakproofness, this technique uses tumbling barrel ;
As shown in figure 4, the tumbling barrel 9 and hopper 7 of the present invention connect, tumbling barrel 9 is extended in drilling 6, and hopper 7 is connected to tumbling barrel 9 tops, 9 top of tumbling barrel are fixed with pouring stent 8, pour the support of 8 bottom of stent on the ground, tumbling barrel 9 can be at drilling orifice Adjustment length.
Step 6:Filling concrete is carried out in drilling;
The dry pore-creating filling pile of rotary digging must will be immediately perfused after previous every pore-forming be changed to a collection of stake pore-forming after be perfused in batches; Advantage is:I.e. production concrete was transported to scene with tank car after previous every pore-forming, because of every differences such as stake holes depth, pore forming process, Concrete square amount is difficult control;After batch is perfused, it can be filled to last by this collection of stake production concrete, controlled last root The amount of concrete of stake greatly reduces the loss and waste of concrete;
Due to being the dry pore-forming of rotary drilling rig, drying is anhydrous in stake holes after pore-forming, thus pile foundation concrete can be used it is conventional mixed Solidifying soil, without being strict with by underwater concrete to slump, workability, per square concrete cement dosage etc.;
Due to batch pore-forming, batch perfusion pile, concrete mixing plant production concrete is also according to this collection of stake next life Produce concrete, therefore, technically, concrete test block can be left and taken according to machine-team or position, without as underwater gliders that Sample, every is left and taken test block;This can reduce live cost of labor, testing expenses etc.;
To ensure that stake top concrete reaches design strength, during underwater gliders, the superfilled height of code requirement is preferably 0.8 ~1.0m;Specification is not distinctly claimed the dry superfilled height of pore-creating filling pile stake top, is proved through engineering practice, dry pore-creating filling pile Superfilled 0.2~the 0.3m of stake top, is vibrated after filling to stake top using poker vibrator, it is ensured that stake top concrete compaction;This Concrete material 2%~5% can be saved;If there is negative hole after stake holes pile pile, perfusion after the completion of covered as early as possible, to pile crown into Row protection, to eliminate safe hidden trouble.
The technological process of traditional pipeline system, is changed the technological process of pore-forming, batch pile in batch by summary, and is adopted More than technical measures are taken, being put into practice through Practical Project confirms, the more traditional construction technology of comprehensive cost reduces about 25%~30%.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.

Claims (7)

1. a kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig, it is characterized in that, comprise the following steps:
Step 1:Smooth processing is carried out to construction site, foundation stabilization pretreatment is carried out to construction site after the completion of smooth processing, Batch carries out measuring stake position on construction ground, it is ensured that stake position is in accurate position, and measuring stake position concretely comprises the following steps:
Setting regions batch completes multiple rows of multiple row stake position measuring on construction ground, after stake position determines, by the external steel for carrying label Muscle squeezes into below ground, and pile No. and hole depth data are identified on label, the stake holes centralising device center of circle is directed at stake holes center, along stake holes Centralising device periphery limes, and spuds in dimension line as stake holes to check stake position;
Step 2:Batch drills to setting hole depth, the continuous construction drill in adjacent studs position at stake position;In construction drill to facing During nearly setting hole depth, drill bit of drilling machine is changed to the barrel type drill bit of bottom belt valve, continues to drill, in the drilling of pore-forming Aperture adds cover board with closed protective, and the cover board includes cover board body, and the cover board body is made of iron sheet, the cover board sheet Reinforced mesh is laid in body upper surface;
Step 3:After whole equal pore-formings in stake position, cover board is removed, steel reinforcement cage is divided into drilling;
Step 4:Tumbling barrel and hopper are installed in drill hole;
Step 5:Filling concrete is carried out in drilling.
2. construction technology as described in claim 1, it is characterized in that, the stake holes centralising device includes the outer toroid being arranged concentrically And interior annular, connecting bracket between the outer toroid and interior annular.
3. construction technology as described in claim 1, it is characterized in that, in the step 2, after the completion of drilling, using dust catcher pair The sediment at drilling hole bottom is cleared up.
4. construction technology as described in claim 1, it is characterized in that, in the step 3, before steel reinforcement cage is divided into, constructing Region surrounding sets marker post, sets reference mark on marker post, steel reinforcement cage cage top absolute altitude is controlled by the way of bracing wire.
5. construction technology as described in claim 1, it is characterized in that, in the step 4, tumbling barrel is connected with hopper, tumbling barrel extension To drilling, hopper is connected at the top of tumbling barrel, and tumbling barrel top is fixed with pouring stent, pours frame bottom support on the ground, Tumbling barrel can at drilling orifice adjustment length.
6. construction technology as described in claim 1, it is characterized in that, in the step 5, when carrying out filling concrete, bored concrete pile Superfilled 0.2~the 0.3m of stake top, is vibrated after being perfused to stake top using poker vibrator, it is ensured that stake top concrete compaction.
7. construction technology as described in claim 1, it is characterized in that, in the step 5, if having after the completion of perfusion after bored concrete pile negative Hole is covered as early as possible, while filling pile head is protected.
CN201610789624.5A 2016-08-31 2016-08-31 A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig Active CN106284311B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111441343A (en) * 2020-04-10 2020-07-24 中国水利水电第一工程局有限公司 Mountain photovoltaic support micropore cast-in-place pile foundation system, construction method and application

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812135A (en) * 2017-03-15 2017-06-09 高歌 A kind of circuit column foot continuous-flow type mechanical execution engineering method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07138946A (en) * 1993-11-12 1995-05-30 Fujita Corp Pile head reinforcement curing method for cast-in-place pile and treatment method therefor
CN101761073A (en) * 2010-01-19 2010-06-30 广东省长大公路工程有限公司 Improved construction technology of CFG (cement fIying-ash gravel) pile
CN102758430A (en) * 2012-07-31 2012-10-31 中建五局第三建设有限公司 Large-diameter rotary digging pile construction technology for ultra-deep dumped unconsolidated soil bodies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07138946A (en) * 1993-11-12 1995-05-30 Fujita Corp Pile head reinforcement curing method for cast-in-place pile and treatment method therefor
CN101761073A (en) * 2010-01-19 2010-06-30 广东省长大公路工程有限公司 Improved construction technology of CFG (cement fIying-ash gravel) pile
CN102758430A (en) * 2012-07-31 2012-10-31 中建五局第三建设有限公司 Large-diameter rotary digging pile construction technology for ultra-deep dumped unconsolidated soil bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111441343A (en) * 2020-04-10 2020-07-24 中国水利水电第一工程局有限公司 Mountain photovoltaic support micropore cast-in-place pile foundation system, construction method and application

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