CN107905221A - A kind of method for being accurately positioned percussive drilling bored concrete pile - Google Patents
A kind of method for being accurately positioned percussive drilling bored concrete pile Download PDFInfo
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- CN107905221A CN107905221A CN201711215718.2A CN201711215718A CN107905221A CN 107905221 A CN107905221 A CN 107905221A CN 201711215718 A CN201711215718 A CN 201711215718A CN 107905221 A CN107905221 A CN 107905221A
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- Prior art keywords
- stake holes
- hole
- mud
- casing
- accurately positioned
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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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)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a kind of method for being accurately positioned percussive drilling bored concrete pile, including：Hole position is measured, buries casing, slurrying, drilling, examines hole, first time borehole cleaning, the making and fixing of reinforcing steel bar cage, installs conduit, second of borehole cleaning, the perfusion of concrete.A kind of method for being accurately positioned percussive drilling bored concrete pile in the present invention, can be accurately positioned stake holes, easy to the construction of drilling machine by designing fender pile；Embedded casing not only protects aperture to prevent ground stone from falling into hole, while ensures mud water level, prevents the hole that collapses；Twice borehole cleaning can effective cleaning hole bottom heavy quarrel, the pile body after perfusion is not easy broken pile and folder mud, ensure that pile quality.
Description
Technical field
The present invention relates to technical field of civil engineering, more particularly to a kind of method for being accurately positioned percussive drilling bored concrete pile.
Background technology
Bored concrete pile refers to pass through means shapes in foundation soil such as machine drilling, steel pipe soil compaction or manpower excavation in engineering site
Into stake holes, and steel reinforcement cage, concrete perfusion and the stake made are placed in it, different according to forming hole method, bored concrete pile can divide again
For several classes such as driven cast-in-place pile, cast-in-situ bored pile and digging hole filling pile.Wherein cast-in-situ bored pile is most widely used, existing brill
Hole method for filling positions the shortcomings that not accurate enough, operation is not sufficiently stable due to existing in boring procedure, causes the stake after perfusion
Body easily goes out the perfusion bad phenomenons such as broken pile, undergauge, folder mud, influences pile quality.
The content of the invention
To solve in the prior art, the skill such as position inaccurate, fluctuation of service during drilling existing for drill-pouring piling method
Art problem, technical scheme are as follows：
A kind of method for being accurately positioned percussive drilling bored concrete pile in the present invention, including：
Step S101, measure hole position, using the position of total powerstation positioning stake holes, draws cross tailor's tack to put according to the position of stake holes
Four control fender piles, draw bored concrete pile contour line on the basis of four control fender piles；
Step S102, bury casing, casing waste pit is dug according to bored concrete pile contour line, will cheat bottom it is smooth after be put into shield
Cylinder, is backfilled after the stack shell of casing is vertical with clay；
Step S103, slurrying, digs mud pit, mud is using water, high viscosity using excavator in the range of stake holes
It is prepared by clay and additive；
Step S104, drilling, lifting drilling machine make the center of cross hairs in drill central alignment procedures S101, and drilling machine is first with small
Stroke perforate, after drilling depth exceedes drill bit overall height, adds stroke normally to be impacted, and mud is injected stake holes during drilling
It is interior；
Step S105, examines hole, detects hole depth, aperture and the gradient of stake holes；
Step S106, first time borehole cleaning, continues to inject mud into stake holes, by flushing repeatedly for the low stroke of impact cone,
Bottom hole is set to sink quarrel as mud is easily discharged out of the hole using mud endless form；
Step S107, the making and fixing of reinforcing steel bar cage, steel reinforcement cage are hung steel reinforcement cage with crane by steel bar meter field sectional making
Enter in stake holes, fixed under every after complete section steel reinforcement cage with steel pipe or the lumps of wood, then hang another section steel reinforcement cage with crane and welded,
Whole steel reinforcement cages are hung in stake holes successively；
Step S108, is installed conduit, is hung in conduit in stake holes using crane；
Step S109, mud, is pressed into conduit by second of borehole cleaning using pump, then from bottom hole along conduit outside displacement it is heavy
Quarrel；
Step S110, the perfusion of concrete, by conduit into stake holes concrete perfusion.
Further, it is further comprising the steps of before the step S101：
Step S100, smooth location, makes the place of stake holes to the height of design requirement.
Further, in the step S102, casing is one-piece steel casing, and the wall thickness of casing is 4mm, casing
Internal diameter is more than the aperture 20cm of stake holes, and during shield-tube embedment, construction ground 0.3m is higher by the top of casing.
Further, it is further comprising the steps of in the step S103：
Step S1031, the shape of mud pit is rectangle, is separated in mud pit long side direction, forms pulping pond and sinks
Shallow lake pond；
Step S1032, sedimentation basin are connected by mud ditch with casing；
Step S1033, the top in pulping pond install iron sheet case using steel pipe frame, and iron sheet case elevation of bottom is higher than stake holes absolute altitude
Mud in mud pit, is extracted into iron sheet case by least 50cm using slush pump, then uses more rubber-plastic flexible pipes from iron sheet tank wall
It is connected with stake holes to be drilled.
Further, it is further comprising the steps of in the step S104：
Take in batches jump hole apply, bore pile hole construction when applied by every two piles, adjacent two pile driving constructions interval time is not
When small less than 36.
Further, in the step S108, conduit uses diameterThe seamless steel pipe of wall thickness 6mm.
Further, it is further comprising the steps of in the step S105：
Step S1051, using the aperture of cage inspection hole device detection stake holes；
Step S1052, using the oblique instrument of side wall or the gradient of drilling rod normal line method detection stake holes；
Step S1053, using the hole depth of lining rope detection stake holes.
A kind of method for being accurately positioned percussive drilling bored concrete pile in the present invention, compared with prior art, its advantage
For：
A kind of method for being accurately positioned percussive drilling bored concrete pile in the present invention, stake can be accurately positioned by designing fender pile
Hole, easy to the construction of drilling machine；Embedded casing not only protects aperture to prevent ground stone from falling into hole, while ensures mud water level,
Prevent the hole that collapses；Twice borehole cleaning can effective cleaning hole bottom heavy quarrel, the pile body after perfusion is not easy broken pile and folder mud, ensure that pile body
Quality.
Brief description of the drawings
Fig. 1 is a kind of flow diagram for the method for being accurately positioned percussive drilling bored concrete pile in the present invention.
Embodiment
Below in conjunction with the attached drawing of the present invention, technical scheme is clearly and completely described.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, belongs to the scope of protection of the invention.
As shown in Figure 1, a kind of method for being accurately positioned percussive drilling bored concrete pile in the present invention, including：
Step S101, measure hole position, using the position of total powerstation positioning stake holes, draws cross tailor's tack to put according to the position of stake holes
Four control fender piles, draw bored concrete pile contour line on the basis of four control fender piles, and accurate in place so as to drilling machine, fender pile will be done
Work is protected well, is prevented disturbed in work progress.
Step S102, bury casing, casing waste pit is dug according to bored concrete pile contour line, will cheat bottom it is smooth after be put into shield
Cylinder, is backfilled after the stack shell of casing is vertical with clay, and compaction in layers, and with filling out with observation casing, casing position is inclined when preventing from banketing
Move, after shield-tube embedment is good, reinforcing rib and lifting lug are welded at top and outputs the mouth of a river
Step S103, slurrying, digs mud pit, mud pit is set using sunk type using excavator in the range of stake holes
Put, to prevent mud leakage after the completion of excavation, tunnel waterproof roll shop fixtures is used after bottom cushion pours, and roll up in waterproof
5cm thickness fish tail and waterproof layers are poured above material.Mud is prepared using water, high viscosity clay and additive, mud have floating outstanding boring mud,
Drill bit, lubrication drilling tool are cooled down, increases the effect of hydrostatic pressure.
Step S104, drilling, lifting drilling machine make the center of cross hairs in drill central alignment procedures S101, and drilling machine is first with small
Stroke perforate, after drilling depth exceedes drill bit overall height, adds stroke normally to be impacted, and mud is injected stake holes during drilling
Interior, mud forms mudcake in hole wall and forms retaining wall effect, separates seepage flow inside and outside hole, the effect in the hole that prevents from collapsing.
Step S105, examines hole, detects hole depth, aperture and the gradient of stake holes.
Step S106, first time borehole cleaning, continues to inject mud into stake holes, by flushing repeatedly for the low stroke of impact cone,
Bottom hole is set to sink quarrel as mud is easily discharged out of the hole using mud endless form.
Step S107, the making and fixing of reinforcing steel bar cage, steel reinforcement cage are hung steel reinforcement cage with crane by steel bar meter field sectional making
Enter in stake holes, fixed under every after complete section steel reinforcement cage with steel pipe or the lumps of wood, then hang another section steel reinforcement cage with crane and welded,
Whole steel reinforcement cages are hung in stake holes successively.
Step S108, is installed conduit, is hung in conduit in stake holes using crane.
Step S109, second of borehole cleaning, after in first time, borehole cleaning reaches requirement, due to steel reinforcement cage to be placed and conduit, extremely
The time slot of pour concrete is longer, and bottom hole can produce heavy quarrel again, so after placement steel reinforcement cage and conduit are ready, recycles conduit
Carry out second of borehole cleaning, mud be pressed into conduit using pump, then from bottom hole along conduit outside the heavy quarrel of displacement, be concrete perfusion
Create good condition.
Step S110, the perfusion of concrete, by conduit into stake holes concrete perfusion.
Further, it is further comprising the steps of before the step S101：
Step S100, smooth location, makes the place of stake holes to the height of design requirement.
Further, in the step S102, casing is one-piece steel casing, and the wall thickness of casing is 4mm, casing
Internal diameter is more than the aperture 20cm of stake holes, and during shield-tube embedment, construction ground 0.3m is higher by the top of casing.
Further, it is further comprising the steps of in the step S103：
Step S1031, the shape of mud pit is rectangle, is separated in mud pit long side direction, forms pulping pond and sinks
Shallow lake pond；
Step S1032, sedimentation basin are connected by mud ditch with casing；
Step S1033, the top in pulping pond install iron sheet case using steel pipe frame, and iron sheet case elevation of bottom is higher than stake holes absolute altitude
Mud in mud pit, is extracted into iron sheet case by least 50cm using slush pump, then uses more rubber-plastic flexible pipes from iron sheet tank wall
It is connected with stake holes to be drilled.
Further, it is further comprising the steps of in the step S104：
Take in batches jump hole apply, bore pile hole construction when applied by every two piles, adjacent two pile driving constructions interval time is not
When small less than 36.
Further, in the step S108, conduit uses diameterThe seamless steel pipe of wall thickness 6mm.
Further, it is further comprising the steps of in the step S105：
Step S1051, using the aperture of cage inspection hole device detection stake holes；
Step S1052, using the oblique instrument of side wall or the gradient of drilling rod normal line method detection stake holes；
Step S1053, using the hole depth of lining rope detection stake holes.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (7)
- A kind of 1. method for being accurately positioned percussive drilling bored concrete pile, it is characterised in that including：Step S101, measure hole position, using the position of total powerstation positioning stake holes, draws cross tailor's tack to put four according to the position of stake holes Fender pile is controlled, bored concrete pile contour line is drawn on the basis of four control fender piles；Step S102, bury casing, casing waste pit is dug according to bored concrete pile contour line, will cheat bottom it is smooth after be put into casing, protect Cylinder stack shell it is vertical after backfilled with clay；Step S103, slurrying, digs mud pit, mud is using water, high viscosity clay using excavator in the range of stake holes Prepared with additive；Step S104, drilling, lifting drilling machine make the center of cross hairs in drill central alignment procedures S101, and drilling machine is first with small stroke Perforate, after drilling depth exceedes drill bit overall height, adds stroke normally to be impacted, by mud injection stake holes during drilling；Step S105, examines hole, detects hole depth, aperture and the gradient of stake holes；Step S106, first time borehole cleaning, continues to inject mud into stake holes, by flushing repeatedly for the low stroke of impact cone, utilizes Mud endless form makes bottom hole sink quarrel as mud is easily discharged out of the hole；Steel reinforcement cage is hung in stake by step S107, the making and fixing of reinforcing steel bar cage, steel reinforcement cage by steel bar meter field sectional making with crane In hole, fixed under every after complete section steel reinforcement cage with steel pipe or the lumps of wood, then hang another section steel reinforcement cage with crane and welded, successively Whole steel reinforcement cages are hung in stake holes；Step S108, is installed conduit, is hung in conduit in stake holes using crane；Step S109, mud, is pressed into conduit by second of borehole cleaning using pump, then from bottom hole along conduit outside the heavy quarrel of displacement；Step S110, the perfusion of concrete, by conduit into stake holes concrete perfusion.
- A kind of 2. method for being accurately positioned percussive drilling bored concrete pile according to claim 1, it is characterised in that the step It is further comprising the steps of before S101：Step S100, smooth location, makes the place of stake holes to the height of design requirement.
- 3. a kind of method for being accurately positioned percussive drilling bored concrete pile according to claim 1, it is characterised in that in the step In rapid S102, casing is one-piece steel casing, and the wall thickness of casing is 4mm, and the internal diameter of casing is more than the aperture 20cm of stake holes, shield When cylinder is embedded, construction ground 0.3m is higher by the top of casing.
- A kind of 4. method for being accurately positioned percussive drilling bored concrete pile according to claim 1, it is characterised in that the step It is further comprising the steps of in S103：Step S1031, the shape of mud pit is rectangle, is separated in mud pit long side direction, forms pulping pond and sedimentation basin；Step S1032, sedimentation basin are connected by mud ditch with casing；Step S1033, the top in pulping pond install iron sheet case using steel pipe frame, and iron sheet case elevation of bottom is higher than stake holes absolute altitude at least Mud in mud pit, is extracted into iron sheet case by 50cm using slush pump, then iron sheet tank wall is used more rubber-plastic flexible pipes with treating Bore stake holes connection.
- A kind of 5. method for being accurately positioned percussive drilling bored concrete pile according to claim 1, it is characterised in that the step It is further comprising the steps of in S104：Take in batches jump hole apply, bore pile hole construction when applied by every two piles, adjacent two pile driving constructions interval time is not less than 36 it is small when.
- 6. a kind of method for being accurately positioned percussive drilling bored concrete pile according to claim 1, it is characterised in that in the step In rapid S108, conduit uses diameterThe seamless steel pipe of wall thickness 6mm.
- A kind of 7. method for being accurately positioned percussive drilling bored concrete pile according to claim 1, it is characterised in that the step It is further comprising the steps of in S105：Step S1051, using the aperture of cage inspection hole device detection stake holes；Step S1052, using the oblique instrument of side wall or the gradient of drilling rod normal line method detection stake holes；Step S1053, is detected using lining rope The hole depth of stake holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215718.2A CN107905221A (en) | 2017-11-28 | 2017-11-28 | A kind of method for being accurately positioned percussive drilling bored concrete pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215718.2A CN107905221A (en) | 2017-11-28 | 2017-11-28 | A kind of method for being accurately positioned percussive drilling bored concrete pile |
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| CN107905221A true CN107905221A (en) | 2018-04-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797569A (en) * | 2018-06-26 | 2018-11-13 | 江苏地基工程有限公司 | A kind of control method that drilled pile novel energy-conserving pile crown is superfilled |
| CN108978644A (en) * | 2018-07-28 | 2018-12-11 | 江苏地基工程有限公司 | Energy saving and environment friendly bored pile construction method |
| CN109797757A (en) * | 2019-01-16 | 2019-05-24 | 包头市公路工程股份有限公司 | Retaining wall engineering method in the construction of highway engineering Bridge Bored Pile |
| CN111236220A (en) * | 2020-01-19 | 2020-06-05 | 中交第三航务工程局有限公司江苏分公司 | Construction process of punching cast-in-place pile of mixed foundation in sea-filling area |
| CN111851478A (en) * | 2020-07-13 | 2020-10-30 | 深圳市工勘岩土集团有限公司 | Pile-forming construction method for light corrugated steel pile casing isolation non-filling karst cave filling pile |
| CN113404040A (en) * | 2021-07-06 | 2021-09-17 | 中铁二十局集团第六工程有限公司 | Construction method of bored pile foundation |
| CN114541436A (en) * | 2022-04-02 | 2022-05-27 | 中铁二院昆明勘察设计研究院有限责任公司 | Rectangular anti-slide pile forming method for soft soil section |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797569A (en) * | 2018-06-26 | 2018-11-13 | 江苏地基工程有限公司 | A kind of control method that drilled pile novel energy-conserving pile crown is superfilled |
| CN108978644A (en) * | 2018-07-28 | 2018-12-11 | 江苏地基工程有限公司 | Energy saving and environment friendly bored pile construction method |
| CN108978644B (en) * | 2018-07-28 | 2020-09-29 | 江苏地基工程有限公司 | Energy-saving and environment-friendly construction method for cast-in-situ bored pile |
| CN109797757A (en) * | 2019-01-16 | 2019-05-24 | 包头市公路工程股份有限公司 | Retaining wall engineering method in the construction of highway engineering Bridge Bored Pile |
| CN111236220A (en) * | 2020-01-19 | 2020-06-05 | 中交第三航务工程局有限公司江苏分公司 | Construction process of punching cast-in-place pile of mixed foundation in sea-filling area |
| CN111851478A (en) * | 2020-07-13 | 2020-10-30 | 深圳市工勘岩土集团有限公司 | Pile-forming construction method for light corrugated steel pile casing isolation non-filling karst cave filling pile |
| CN113404040A (en) * | 2021-07-06 | 2021-09-17 | 中铁二十局集团第六工程有限公司 | Construction method of bored pile foundation |
| CN114541436A (en) * | 2022-04-02 | 2022-05-27 | 中铁二院昆明勘察设计研究院有限责任公司 | Rectangular anti-slide pile forming method for soft soil section |
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Application publication date: 20180413 |
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