CN107938658A - A kind of construction method of fender post - Google Patents
A kind of construction method of fender post Download PDFInfo
- Publication number
- CN107938658A CN107938658A CN201711146859.3A CN201711146859A CN107938658A CN 107938658 A CN107938658 A CN 107938658A CN 201711146859 A CN201711146859 A CN 201711146859A CN 107938658 A CN107938658 A CN 107938658A
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- China
- Prior art keywords
- mud
- hole
- construction method
- conduit
- fender post
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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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0023—Slurry
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of construction method of fender post, it is related to building foundation field.The construction method of the present invention includes surveying and locating, shield-tube embedment, and slurrying, drills, inspection hole, first time borehole cleaning, installation steel reinforcement cage and conduit, second of borehole cleaning, concrete perfusion and etc..The present invention's goes along with sb. to guard him pile construction method construction is simple, and short construction period, impermeability and lateral pressure resistant performance are excellent and noiseless pollution-free.
Description
Technical field
The present invention relates to building foundation field, more particularly to a kind of construction method of fender post.
Background technology
Fender post is the measure taken for engineering Construction of Deep Foundation, in order to protects foundation pit, and reduces foundation pit
Excavate the influence to Adjacent Buildings and other facilities.The structure and construction method of fender post are also influenced by geology and environment,
With certain limitation.Fender post generally use rotary drilling rig bored pile, but sometimes part fender post top by high-voltage line shadow
Ring, it is necessary to using impact drilled as holes.Therefore, the embedded of the casing in pile driving construction, the preparation of mud, drilling and borehole cleaning are gone along with sb. to guard him
And etc. in each parameter be most important for the quality of fender post.
The content of the invention
For the drawbacks described above and problem of the prior art, the purpose of the embodiment of the present invention is to provide a kind of construction is simple, week
Phase is short, and the construction method of quality fender post.
In order to achieve the above object, the present invention provides following technical solution：
A kind of construction method of fender post, the construction method comprise the following steps：
Step a, surveying and locating and shield-tube embedment, the position for being accurately positioned stake holes, draw cross tailor's tack to put according to stake anchor point
Four control fender piles, the burial place of casing is controlled on the basis of four control fender piles or draws fender post contour line, to bore
Machine it is accurate in place；
Casing uses one-piece steel casing, wall thickness 4mm, and internal diameter is more than stake footpath 20cm；The embedded of casing buries method using digging,
Buried depth 2m；
Step b, slurrying, mud are prepared using high viscosity clay or bentonite, are protected using nature pulping mode
Wall, wherein, the performance indicator for preparing mud is：Relative density 1.1-1.2, viscosity 18-24s, colloidity >=95%, fluid loss≤
20mL/30min, mudcake thickness≤3mm/30min, gel strength 1-2.5Pa, pH value 8-11；
Step c, drilling and when inspection hole, the drilling construction, apply by interval of two piles, during adjacent two pile driving constructions interval
Between not less than 36 it is small when；The inspection hole includes gaging hole depth, aperture, hole deviation degree；
Step d, after the completion of first time borehole cleaning, inspection hole, lower bore continues to inject mud into hole, passes through the low stroke of impact cone
Flush repeatedly, bottom hole is sunk quarrel as mud is easily discharged out of the hole using mud endless form；
Step e, the making and fixing of reinforcing steel bar cage and conduit installation, conduit are using diameter 300mm, the seamless steel of wall thickness 6mm
Pipe；Conduit is hung using crane, it is ensured that conduit is located at the center in hole；
Step f, after second of borehole cleaning, conduit to be installed, mud is pressed into conduit using pump, then from bottom hole along conduit
Outer displacement sediment carries out second of borehole cleaning；
Step g, the perfusion of concrete.
Further, in the step a, during shield-tube embedment, its top surface is higher by construction ground 0.3m, casing end face center with
Design pile position deviation is not more than 5cm, and gradient is not more than 1%.
Further, mud pit setting is further included before the step b and sedimentation basin is set, under the mud pit uses
Heavy formula is arranged on the inside of fender post, and size is 20m × 10m × 2m；The mud pit and sedimentation basin are disposed adjacent；The sedimentation basin
Wall top mark height is not less than 0.3m in the casing grout outlet absolute altitude of every pile.
Further, the discharge of mud and sediment is further included after the step b, will using four-wheel digging machine is manually combined
Boring mud and waste mud in detritus tank are cleared up, and boring mud and waste mud are cured using quick lime or cement
Processing.
Further, in the step b, further include mud circulating system and set, the mud in the mud circulating system
Circular order is：Brand-new mud-mud pit-stake holes-mud pit-sedimentation basin-mud pit-stake holes.
Further, in the step c, the abnormality processing to drilling is further included, the abnormality processing of the drilling includes place
Manage collapse hole, collapse hole and shrinkage cavity.
Further, in the step e, the connection of conduit is connected using ring flange, and is padded between two neighboring ring flange
There is the rubber water-proof packing ring of 4-5mm thickness.
Further, in the step f, after second of borehole cleaning, specific gravity of mud is controlled in 1.03-1.10, is sticked
17-20Pas, sand factor ＜ 2%, colloidity ＞ 98% are spent, repetition measurement sinks quarrel thickness within 2cm.
A kind of construction method of fender post provided by the invention, its advantage are：
1st, construction method short construction period of the invention, impervious good, anti-side pressure and shear resistance are good.
2nd, construction is simple, it is time saving and energy saving.
3rd, noiseless, pollution-free, construction safety.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of construction method schematic diagram of fender post of the present invention.
Embodiment
Below in conjunction with the embodiment of the present invention, technical scheme is clearly and completely described, it is clear that
Described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's all other embodiments obtained without creative efforts, belongs to
The scope of protection of the invention.
According to Fig. 1, illustrate that one kind of the present invention is preferable to carry out method.
A kind of construction method of fender post, above-mentioned construction method comprise the following steps：
Step a, firstly the need of smooth location；
Surveying and locating and shield-tube embedment, the position for being accurately positioned stake holes, draw cross tailor's tack to put four controls according to stake anchor point
Fender pile processed, the burial place of casing is controlled on the basis of four control fender piles or draws fender post contour line, so as to the standard of drilling machine
It is really in place；
Casing uses one-piece steel casing, wall thickness 4mm, and internal diameter is more than stake footpath 20cm；The embedded of casing buries method using digging,
Buried depth 2m；
Wherein, during shield-tube embedment, its top surface is higher by construction ground 0.3m, and casing end face center and design pile position deviation are little
In 5cm, gradient is not more than 1%.
Step b, mud pit is set and sedimentation basin is set, above-mentioned mud pit is arranged on the inside of fender post using sunk type, ruler
Very little is 20m × 10m × 2m；Above-mentioned mud pit and sedimentation basin are disposed adjacent；Above-mentioned precipitation pool wall top mark height is in the shield of every pile
Cylinder grout outlet absolute altitude, and it is not less than 0.3m；
Wherein, to prevent mud leakage after mud pit excavates, used after above-mentioned mud pit bottom cushion pours using tunnel
Waterproof roll floor file, and 5cm thickness fish tail and waterproof layers are poured above waterproof bead.
Slurrying, mud are prepared using high viscosity clay or bentonite, and retaining wall is carried out using nature pulping mode, its
In, the performance indicator for preparing mud is：Relative density 1.1-1.2, viscosity 18-24s, colloidity >=95%, fluid loss≤20mL/
30min, mudcake thickness≤3mm/30min, gel strength 1-2.5Pa, pH value 8-11；
During mud emission, environmental protection must be paid attention to, mud emission enters sedimentation basin without exception, the mud after precipitation
Recycle, discarded slurry is transported to appointed place processing after precipitation process.
Wherein, further include mud circulating system to set, the mud circular order in above-mentioned mud circulating system is：Brand-new mud
Slurry-mud pit-stake holes-mud pit-sedimentation basin-mud pit-stake holes.
The iron sheet case of a 1x1x0.5m is installed using steel pipe frame on above-mentioned mud pit top, iron sheet case elevation of bottom is higher than
Stake holes absolute altitude, and not less than 50cm (higher than mud pit top, and being not less than 80cm).In the above-mentioned circulatory system, using mud
Mud in mud pit is extracted into iron sheet case by pump, then flows into mud in stake holes from iron sheet tank wall using more rubber-plastic flexible pipes,
Rubber-plastic flexible pipe entrance need to install valve, and forming the circulatory system also can be directly evacuated to mud in stake holes using slush pump.Construction
Simply, it is pollution-free.
The discharge of mud and sediment, is carried out the boring mud in detritus tank and waste mud clearly using four-wheel digging machine is manually combined
Reason, and boring mud and waste mud are subjected to curing process using quick lime or cement.Surrounding environment is not interfered with.
In order to ensure construction safety, obvious warning sign and rigid safety prevention measure are set beside mud pit.
Step c, drilling and inspection hole, lifting drilling machine make drill central align piles position central cross line, after drilling machine positioning, base
Must be smooth, firm, it is ensured that not run-off the straight and displacement in drilling process.Rear bit central and pile center are right in place for drilling machine
Just accurate, the steel wire rope for rushing cone is not more than 2cm with steel pile casting center deviation, and steadily shield must not be collided when lifting conehead
Wall and hole wall.
Since adjacent two pilespacing is too short from too near or interval time during to prevent drilled pile construction, collapse hole is caused, being taken point
Batch jumping hole applies, and when drilling construction applies by interval of two piles, when adjacent two pile driving constructions interval time is small not less than 36；
When drilling machine is crept into, first with small stroke perforate, and make the hole wall of first pore-forming solid, vertical, smoother, guiding can be played
Effect, after drilling depth adds stroke more than drill bit overall height, can normally be impacted.During percussion drilling, hole Nei Shui
Position is higher than more than casing base opening 500mm；Draw take boring mud and stop bore when, the moisturizing into hole in time, keep head height.
Above-mentioned inspection hole includes gaging hole depth, aperture, hole deviation degree；Using cage inspection hole device detection, inspection hole device is added with 12 reinforcing bars of Φ
Work makes, its outside diameter is equal to design boring aperture, and length is equal to 4 times of aperture.During detection, inspection hole device is sling, is made in cage
The heart, center and the lifting steel cable in hole are consistent, and are slowly put into hole, unblocked up and down to show that aperture is more than given cage
Footpath, is hampered as halfway, shows there is undergauge or hole tilt phenomenon at the position that is hampered, then needs to descend drill bit to handle again.Cast-in-situ bored pile
Hole quality test stone is that see the table below 1：
1 drilling pouring pile hole quality control standards (QCS) of table
Wherein, the abnormality processing to drilling is further included, the abnormality processing of above-mentioned drilling includes processing collapse hole, collapse hole and contracting
Hole.
Collapse in boring procedure behind hole, to ascertain the reason and be analyzed and processed, after the measures such as casing can be buried using intensification
Continue to creep into.Substantial amounts of dry sawdust can be also added in mud according to field condition, while increases mud balance and (controls 1.15
Between~1.4), improve its hole wall structure.When drill bit enters liquid level every time, speed very slowly will wait drill bit completely into slurry
After liquid, then bottom hole at the uniform velocity is arrived down, carry bore speed control in 0.3~0.5m/s every time.Collapse hole it is serious when, redrilling should be backfilled.
When curved hole shrinkage cavity occurs for drilling, drill bit can generally be mentioned and cleaning bottom of hole repeatedly is carried out at inclined hole, it is honest until drilling, such as
When serious curved hole and probe stone occurs, small slabstone or cobble and clay mixture should be used, is backfilling at inclined hole, treat that filler sinks reality
Drill correction again afterwards.
Step d, after the completion of first time borehole cleaning, inspection hole, lower bore continues to inject mud into hole, passes through the low stroke of impact cone
Flush repeatedly, bottom hole is sunk quarrel as mud is easily discharged out of the hole using mud endless form；
Step e, the making and fixing of reinforcing steel bar cage and conduit installation, conduit are using diameter 300mm, the seamless steel of wall thickness 6mm
Pipe；Conduit is hung using crane, it is ensured that conduit is located at the center in hole；
Main reinforcement during fabrication of reinforcing cage is connected in steel bar meter field using flash butt welding, and connector mutually staggers, and is ensured same
Connector number in one section is no more than the 50% of main reinforcement sum.Steel reinforcement cage reinforcing rib uses two-sided overlap welding, and the lap of splice is
11cm, when welding, are fixed using weldment.The welding of steel reinforcement cage connector uses single-selded lap joint, and the lap of splice is not less than 10d, connector
The spacing that staggers is not less than 35d (d is bar diameter), and cannot be less than 50cm.To ensure steel reinforcement cage machining accuracy, steel reinforcement cage processing
Fabrication of reinforcing cage is being carried out on ready-made moulding bed in advance.Steel reinforcement cage processing installation quality standard see the table below shown in 2.
2 fabrication of reinforcing cage of table and installation quality standard
The connection of above-mentioned conduit is connected using ring flange, and the rubber that 4-5mm thickness is lined between two neighboring ring flange stops
Water cushion circle.Close inspection pipe inner wall and flange panel surface are wanted when assembled, it is ensured that clean no-sundries, deformation and serious wear are led
Pipe is forbidden to use, and conduit is hung with crane, it is to be ensured that it occupy the center in hole, and lowering velocity is slow, prevents card from hanging steel
Muscle cage skeleton.
Step f, after second of borehole cleaning, conduit to be installed, mud is pressed into conduit using pump, then from bottom hole along conduit
Outer displacement sediment carries out second of borehole cleaning；
Wherein, after second of borehole cleaning, specific gravity of mud is controlled in 1.03-1.10, viscosity 17-20Pas, sand factor ＜
2%, colloidity ＞ 98%, repetition measurement sink quarrel thickness within 2cm.
Step g, the perfusion of concrete.
Before perfusion, first according to the requirement of the first batch of concrete of the element factor calculations such as stake holes diameter, catheter diameter, it is ensured that first batch of
Conduit can be embedded in more than 1m during filling concrete.The quantity of first batch of concrete 1 is calculated as the following formula, and drilled pile mixes in the first batch
Solidifying earth volume, which must not be computed, is less than 1.14m3.In order to ensure pile foundation back cover quality, storage bin hopper volume during first batch of filling concrete
Not less than 2m3。
V=π D2 (H1+H2)/4+ π d2h1/4 (formula 1)
In formula：V- irrigates first batch of concrete requirement (m3)；
D- stake holes diameters (m)；
H1- stake holes bottom is to conduit bottom spacing (m)；
The first buried depth (m) of H2- conduits；
D- catheter diameters (m)；
When h1- stake holes inner concretes reach buried depth, the height needed for conduit inner concrete column equilibration conduit external pressure
(m)；H1=Hw* γ w/ γ c, Hw refers to the depth (m) of water or mud in stake holes in formula, and γ w refer to the severe of water or mud in stake holes
(kN/m3), γ c refer to the severe of concrete, take 24kN/m3。
Shorten as far as possible from concrete stir to transport scene time, with it is rapid, uninterruptedly for principle, prevent from transporting
Middle generation concrete disintegration, 2cm is must not exceed when concrete slump loss ratio goes out tank before perfusion, if any isolation or slump damage
Losing excessive phenomenon will be again stirring for, and forbid directly to add water process.The filling concrete time must not exceed first batch of concrete
Presetting period, when concrete be transported to perfusion place when, it is necessary to check its uniformity and slump in critical field.
Finally, further include and quality inspection is carried out without damage survey method using ultrasonic wave.
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 answers the scope of the claims of being subject to.
Claims (8)
- A kind of 1. construction method of fender post, it is characterised in that：The construction method comprises the following steps：Step a, surveying and locating and shield-tube embedment, the position for being accurately positioned stake holes, draw cross tailor's tack to put four according to stake anchor point Fender pile is controlled, the burial place of casing is controlled on the basis of four control fender piles or draws fender post contour line, so as to drilling machine It is accurate in place；Casing uses one-piece steel casing, wall thickness 4mm, and internal diameter is more than stake footpath 20cm；The embedded of casing buries method using digging, embedding Depth 2m；Step b, slurrying, mud are prepared using high viscosity clay or bentonite, and retaining wall is carried out using nature pulping mode, its In, the performance indicator for preparing mud is：Relative density 1.1-1.2, viscosity 18-24s, colloidity >=95%, fluid loss≤20mL/ 30min, mudcake thickness≤3mm/30min, gel strength 1-2.5Pa, pH value 8-11；Step c, drilling and inspection hole, the drilling construction when applied by interval of two piles, adjacent two pile driving constructions interval time is not When small less than 36；The inspection hole includes gaging hole depth, aperture, hole deviation degree；Step d, after the completion of first time borehole cleaning, inspection hole, lower bore continues to inject mud into hole, by the low stroke of impact cone repeatedly Flush, bottom hole is sunk quarrel as mud is easily discharged out of the hole using mud endless form；Step e, the making and fixing of reinforcing steel bar cage and conduit installation, conduit are using diameter 300mm, the seamless steel pipe of wall thickness 6mm；Will Conduit is hung using crane, it is ensured that conduit is located at the center in hole；Step f, after second of borehole cleaning, conduit to be installed, mud is pressed into conduit using pump, then it is external from bottom hole along conduit Change sediment and carry out second of borehole cleaning；Step g, the perfusion of concrete.
- A kind of 2. construction method of fender post according to claim 1, it is characterised in that：In the step a, shield-tube embedment When, its top surface is higher by construction ground 0.3m, and casing end face center is not more than 5cm with design pile position deviation, and gradient is not more than 1%.
- A kind of 3. construction method of fender post according to claim 1, it is characterised in that：Also wrapped before the step b Include mud pit setting and sedimentation basin is set, the mud pit is arranged on the inside of fender post using sunk type, and size is 20m × 10m ×2m；The mud pit and sedimentation basin are disposed adjacent；The precipitation pool wall top mark height in the casing grout outlet absolute altitude of every pile, And it is not less than 0.3m.
- A kind of 4. construction method of fender post according to claim 1, it is characterised in that：Also wrapped after the step b The discharge of mud and sediment is included, is cleared up the boring mud in detritus tank and waste mud with reference to four-wheel digging machine using artificial, and Boring mud and waste mud are subjected to curing process using quick lime or cement.
- A kind of 5. construction method of fender post according to claim 1, it is characterised in that：In the step b, mud is further included Starch the circulatory system to set, the mud circular order in the mud circulating system is：Brand-new mud-mud pit-stake holes-mud Pond-sedimentation basin-mud pit-stake holes.
- A kind of 6. construction method of fender post according to claim 1, it is characterised in that：In the step c, further include pair The abnormality processing of drilling, the abnormality processing of the drilling include processing collapse hole, collapse hole and shrinkage cavity.
- A kind of 7. construction method of fender post according to claim 1, it is characterised in that：In the step e, the company of conduit Connect and connected using ring flange, and the rubber water-proof packing ring of 4-5mm thickness is lined between two neighboring ring flange.
- A kind of 8. construction method of fender post according to claim 1, it is characterised in that：In the step f, described second After secondary borehole cleaning, specific gravity of mud is controlled in 1.03-1.10, viscosity 17-20Pas, sand factor ＜ 2%, colloidity ＞ 98%, Repetition measurement sinks quarrel thickness within 2cm.
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| CN201711146859.3A CN107938658A (en) | 2017-11-17 | 2017-11-17 | A kind of construction method of fender post |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711146859.3A CN107938658A (en) | 2017-11-17 | 2017-11-17 | A kind of construction method of fender post |
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| CN107938658A true CN107938658A (en) | 2018-04-20 |
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| CN201711146859.3A Pending CN107938658A (en) | 2017-11-17 | 2017-11-17 | A kind of construction method of fender post |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425369A (en) * | 2018-05-04 | 2018-08-21 | 中国建筑第四工程局有限公司 | A kind of bridge Double-Wall Steel Boxed Cofferdam sinking construction slurrying method |
| CN109723373A (en) * | 2018-12-26 | 2019-05-07 | 中铁二十五局集团第五工程有限公司 | A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method |
| CN110306584A (en) * | 2019-07-05 | 2019-10-08 | 广州穗岩土木科技股份有限公司 | A kind of follow-up casing pile foundation drilling construction method |
| CN110424444A (en) * | 2019-08-13 | 2019-11-08 | 中国电建集团山东电力建设有限公司 | Steel pipe pole overhead transmission line foundation pile construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924586A (en) * | 2014-03-18 | 2014-07-16 | 沈保汉 | Multi-section reaming cast-in-place pile construction method |
| CN206220892U (en) * | 2016-11-30 | 2017-06-06 | 中铁上海工程局集团第五工程有限公司 | A kind of cast-in-situ bored pile mud circulating system |
-
2017
- 2017-11-17 CN CN201711146859.3A patent/CN107938658A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924586A (en) * | 2014-03-18 | 2014-07-16 | 沈保汉 | Multi-section reaming cast-in-place pile construction method |
| CN206220892U (en) * | 2016-11-30 | 2017-06-06 | 中铁上海工程局集团第五工程有限公司 | A kind of cast-in-situ bored pile mud circulating system |
Non-Patent Citations (1)
| Title |
|---|
| ATCWHJ22GBVL: "钻孔灌注桩（冲击钻、人工挖孔）", 《百度文库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425369A (en) * | 2018-05-04 | 2018-08-21 | 中国建筑第四工程局有限公司 | A kind of bridge Double-Wall Steel Boxed Cofferdam sinking construction slurrying method |
| CN109723373A (en) * | 2018-12-26 | 2019-05-07 | 中铁二十五局集团第五工程有限公司 | A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method |
| CN110306584A (en) * | 2019-07-05 | 2019-10-08 | 广州穗岩土木科技股份有限公司 | A kind of follow-up casing pile foundation drilling construction method |
| CN110424444A (en) * | 2019-08-13 | 2019-11-08 | 中国电建集团山东电力建设有限公司 | Steel pipe pole overhead transmission line foundation pile construction method |
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