CN106245628A - A kind of method for filling of corrosion geology large diameter drill hole pile under water - Google Patents
A kind of method for filling of corrosion geology large diameter drill hole pile under water Download PDFInfo
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- CN106245628A CN106245628A CN201610686383.1A CN201610686383A CN106245628A CN 106245628 A CN106245628 A CN 106245628A CN 201610686383 A CN201610686383 A CN 201610686383A CN 106245628 A CN106245628 A CN 106245628A
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- conduit
- filling
- hopper
- hole
- concrete
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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
- E02D5/40—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds in open water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
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- Engineering & Computer Science (AREA)
- General 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)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses the method for filling of a kind of corrosion geology large diameter drill hole pile under water, comprise the following steps: (1) perforate；(2) drilling and forming hole；(3) clear hole；(4) steel reinforcement cage is placed；(5) conduit is transferred；(6) first batch of filling concrete: by big hopper lifting to conduit platform, hopper is connected with conduit；2 ~ 4 concrete tanks of arrangement and 2 ~ 4 tableland pumps on bank, the pump line of ground pump accesses in big hopper by interim pontoon bridge, and in concrete tank delivering concrete to ground pump, concrete is pumped in Fructus Anisi Stellati bucket by ground pump, big hopper carries out pulling out ball after filling, and uses 2 ~ 4 tableland pumps to carry out feed simultaneously；(7) follow-up filling concrete: after first batch of filling concrete, it is 2 ~ 5 m that big hopper replaces to capacity3Little hopper be irrigated, perfusion to designed elevation.The constructional difficulties of corrosion geology and wide river course can be overcome by the present invention, improve the quality of drilled pile, it is ensured that the stability of bridge main tower.
Description
Technical field
The present invention relates to bridge construction field, the method for filling of a kind of corrosion geology large diameter drill hole pile under water.
Background technology
Drilled pile is typically to utilize rig to form stake holes in the ground of engineering site, and place in stake holes steel reinforcement cage,
Concrete perfusion and make.In the pile foundation construction of bridge main tower, for ensureing the stability of king-tower, generally require employing carrying
The drilled pile of the major diameter that power is big, the i.e. pile body diameter drilled pile more than 2.5 meters, carries out large diameter borehole under water on Guangxi and other places
Pile driving construction, owing to river course is wider, and need to having solution cavity, holing in the rock stratum of fluid bowl, uses existing construction method to be difficult to
Reach the construction requirement of large diameter drill hole pile, then the stability of bridge main tower is also difficult to be further ensured that.
Summary of the invention
The invention provides the method for filling of a kind of corrosion geology large diameter drill hole pile under water, corrosion geology and width can be overcome
The constructional difficulties in river course, improves the quality of drilled pile, it is ensured that the stability of bridge main tower.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The method for filling of a kind of corrosion geology large diameter drill hole pile under water, comprises the following steps:
(1) perforate: inserted to play steel pile casting at stake position；Prepare enough mud, before spudding in, in the hole of steel pile casting, inject mud with slush pump,
It is subsequently adding ball clay, drill bit alignment stake holes center, repeated stock stake position pulping；
(2) drilling and forming hole: drag for slag in drilling process in time；
(3) clear hole: after being bored into designed elevation, checks with inspecting hole device reply hole depth, Kong Wei, hole shape, aperture, checks out
Bi Houyong changes slurry processes and carries out clear hole, makes sediment thickness at the bottom of whole hole, hole be less than 5cm, and in hole, the proportion of mud is 1.03～1.25；
(4) steel reinforcement cage is placed: assembled steel reinforcement cage, and carries out integral hoisting hand-hole；
(5) conduit is transferred: install conduit platform at steel pile casting top, and conduit Platform center is provided with for dismounting and A/C
Clamp, clamp center and pile foundation center, on the same line, are transferred conduit from clamp center, and are completed between conduit on clamp
The splicing carried out, transfers complete to conduit；
(6) first batch of filling concrete: make capacity more than 16m3Big hopper, by the lifting of big hopper on conduit platform, hopper
It is connected with conduit；At 2 ~ 4 concrete tanks of arrangement and 2 ~ 4 tableland pumps on bank, the pump line of ground pump is accessed by interim pontoon bridge
In big hopper, in concrete tank delivering concrete to ground pump, concrete is pumped in Fructus Anisi Stellati bucket by ground pump, and big hopper is filled laggard
Row pulls out ball, uses 2 ~ 4 tableland pumps to carry out feed simultaneously, it is ensured that the depth of tremie after first batch of filling concrete is more than 1.5m；
(7) follow-up filling concrete: after first batch of filling concrete, it is 2 ~ 5 m that big hopper replaces to capacity3Little hopper
Being irrigated, perfusion, to designed elevation, extracts conduit.
Preferably, described big hopper includes that hopper body, hopper body include square section of panel, conical section panel and hopper
Conduit, square section of panel and conical section panel surround material trough, and material trough connects with hopper conduit, and hopper conduit bottom outside sets
Having base, four angles of base are provided with column, and the top of column is fixing with square section of panel to be connected, described square section of panel and cone
If shape section panel periphery is interval with dried layer cross-brace, described base being additionally provided with some diagonal braces, the upper end of diagonal brace supports
In the cross-brace of conical section panel.Big hopper fully ensures that its stability and carrying by column, cross-brace and diagonal brace
Ability, meets the perfusion needs of the first batch of concrete of large diameter drill hole pile.
It is furthermore preferred that the first stiffener being provided with triangle between described conical section panel and column is reinforced；Described
The junction of column and base is symmetrically arranged on two with the second stiffener of triangle and reinforces.Described conduit and conical section panel
Junction, be provided with reinforcing plate and reinforce；Described reinforcing plate includes upper reinforcing plate and the lower reinforcing plate of oblique connection, upper reinforcement
Plate is fixing with conical section panel to be connected, and lower reinforcing plate is fixing with conduit to be connected.By the first stiffener, the second stiffener and reinforcement
Plate, can fully ensure that the stability that each parts of hopper connect, and the support force of hopper four foot point.
Preferably, described conduit platform includes that lower support, upper support and clamp, lower support and upper support include two rows respectively
The Two bors d's oeuveres I-steel be arrangeding in parallel, upper support is vertically set on above lower support, and the end face of upper support is provided with clamp, described
Clamp includes the first card Slab element and the second card Slab element, the first card Slab element and the second clamp unit spliced together, and in
Between be provided with guide hole, guide hole matches with conduit.The position of conduit can be efficiently controlled by conduit platform, make conduit put
It is placed in the center of pile foundation, thus ensures the pouring quality of concrete.
Preferably, in described step (4), during assembled steel reinforcement cage, sound detecting pipe is installed simultaneously, at the end of steel reinforcement cage
Sound detecting pipe is fixed together with reinforcing bar by end, centre and top respectively with fixture.Can be to the quality of drilled pile by sound detecting pipe
Situation carries out ultrasound examination.
Described conduit is made up of some sections of duct unit splicings, and duct unit two ends are designed with catheter adapter, catheter adapter
Between use Flange joint, duct unit outer wall distance top 40 ~ 50cm place welding φ 8 reinforcing bar as snap ring.Duct unit it
Between connected by form of flanges, can effectively prevent water injection through pipe phenomenon from occurring.
Preferably, in described step (6), described ground pump is additionally provided with emergent pump line, when pump line blocks, uses emergency pump
Pump line delivering concrete replaced by pipe, so can ensure the seriality that filling concrete is constructed.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: (1) present invention is by ground pump
By in the concrete conveyance in concrete tank to hopper, it is achieved that remote concrete conveyance on wide river course, and conveying is all
Even stable, it is effectively guaranteed the pouring quality of concrete；(2) present invention is provided with interim pontoon bridge and supports ground pump pump line, can carry
The highly conveying stability of pump pump line；(3) present invention big hopper has been carried out strengthen design, improve hopper bearing capacity and
Stability, while the depth of tremie after ensureing first batch of filling concrete needs more than 1.5m and filling conduit bottom gap,
Also increase the buried depth coefficient of conduit；(4) present invention uses transferring of conduit platform boot conduit, makes conduit be positioned over pile foundation
Center, is effectively ensured the pouring quality of concrete；(5) drilled pile pile body good forming effect can be made by the present invention, it is ensured that bore
The quality of hole stake, improves the stability of its superstructure.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of invention；
Fig. 2 be Fig. 1 face structural representation；
Fig. 3 is the left view structural representation of Fig. 1；
Fig. 4 is the cross section structure schematic diagram that reinforcing plate is connected with conduit；
Fig. 5 is the left view structural representation of reinforcing plate in Fig. 2；
Fig. 6 is the mounting structure schematic diagram of conduit platform；
Fig. 7 is the plan structure schematic diagram of Fig. 6.
In figure, cross-brace 1, base 2, hopper conduit 16, column 4, square section of panel 5, conical section panel 6, reinforcing plate
7, upper reinforcing plate 7a, lower reinforcing plate 7b, diagonal brace 8, the first stiffener 9, the second stiffener 10, preformed hole 11, suspension ring 12, lower support
13, upper support 14, snap ring 15, conduit 16, clamp 17.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, but protection scope of the present invention is not limited to following example.
The method for filling of a kind of corrosion geology large diameter drill hole pile under water, comprises the following steps:
(1) perforate: inserted to play steel pile casting at stake position；Prepare enough mud, before spudding in, in the hole of steel pile casting, inject mud with slush pump,
It is subsequently adding ball clay, with impact cross bit with little stroke repeated stock stake position pulping so that hole wall is solid；
(2) drilling and forming hole: drag for slag in drilling process in time；Drag for slag and use mud circulating system, after mud is deployed, enter mud
Stock tank, sends in drilled pile, then the mud of circulation band boring mud out in boring, and the mud of boring mud is separated by mud
Device, makes screenings separate, and boring mud is emitted in waste residue pond, and premium mud is back in steel pile casting mud pit, moves in circles；Holed
As changed slurry in journey, discarded slurry is first squeezed in mud carrier with slush pump, then squeezes in fortune slurry car with slush pump.
(3) clear hole: after being bored into designed elevation, checks with inspecting hole device reply hole depth, Kong Wei, hole shape, aperture, anti-
Boring procedure only occurs shrinkage cavity or inclined hole and transfers the situation generation that steel reinforcement cage fails to lay down at present, after inspection, profit
That will be left in bottom hole point with pure mud and in hole the rock stratum residue in mud be transported to sedimentation tank, it is ensured that at the bottom of repetitive measurement hole
Residue thickness is not more than 5cm, and the mud being simultaneously back in hole, without the residue of 2～3mm, carries out clear hole with changing slurry processes, makes end
Sediment thickness at the bottom of hole, hole is less than 5cm, and in hole, the proportion of mud is 1.03～1.25；
(4) steel reinforcement cage is placed: assembled steel reinforcement cage, and carries out integral hoisting hand-hole；
(5) conduit 16 is transferred: install conduit platform at steel pile casting top, and conduit Platform center is provided with for dismounting and A/C
Conduit 16, on the same line, is transferred in the clamp 17 of 16, clamp center and pile foundation center from clamp center, and complete on clamp 17
Become the splicing carried out between conduit 16, transfer complete to conduit 16；
(6) first batch of filling concrete: make capacity more than 16m3Big hopper, by the lifting of big hopper on conduit platform, hopper
It is connected with conduit 16；At 2 ~ 4 concrete tanks of arrangement and 2 ~ 4 tableland pumps on bank, the pump line of ground pump is connect by interim pontoon bridge
Entering in big hopper, in concrete tank delivering concrete to ground pump, concrete is pumped in Fructus Anisi Stellati bucket by ground pump, after big hopper is filled
Carry out pulling out ball, use 2 ~ 4 tableland pumps to carry out feed simultaneously, it is ensured that conduit 16 buried depth after first batch of filling concrete is more than 1.5m；
(7) follow-up filling concrete: after first batch of filling concrete, it is 2 ~ 5 m that big hopper replaces to capacity3Little hopper
Be irrigated, perfusion to designed elevation, extract conduit 16, need to slowly extract when extracting conduit 16, so as not to sandwich in stake loam core or
Form cavity.
A kind of bored piles hopper, as shown in Fig. 1 ~ 3, including hopper body, hopper body includes square section of panel
5, conical section panel 6 and hopper conduit 3, square section of panel 5 and conical section panel 6 surround material trough, material trough and hopper conduit 3
Connection, the concrete pumping into material trough is entered in conduit 16 by hopper conduit 3.For improving the support force of hopper, lead at hopper
Pipe 3 bottom outside is provided with base 2, installs column 4 at four angles of base 2, and the top of column 4 is fixing with square section of panel 5 even
Connect, if being interval with dried layer cross-brace 1 at square section of panel 5 and conical section panel 6 periphery, wherein, horizontal shown in figure
Support 1, square section of panel 5 is provided with 2 layers, conical section panel 6 is provided with 1 layer；Base 2 is additionally provided with some tiltedly
Support 8, the upper end of diagonal brace 8 is supported in the cross-brace 1 of conical section panel 6.
Further, for ensureing the support force of hopper, between conical section panel 6 and column 4, the first of triangle it is provided with
Stiffener 9 is reinforced, and this first stiffener 9 also can improve the connective stability of conical section panel and column simultaneously, at column 4
The second stiffener 10 being provided with triangle with the junction lateral symmetry of base 2 is reinforced, and the supporting construction of triangle can
Alleviate the support burden of column 4, the weight of material trough is uniformly dispersed to base 2.
Further, for ensureing the stability that conical section panel 6 and conduit 3 connect, the load-bearing of conical section panel 6 is strengthened
Power, in the junction of conduit 3 with conical section panel 6, is provided with reinforcing plate 7, and shown in Fig. 4 and Fig. 5, wherein, reinforcing plate 7 is wrapped
Including the upper reinforcing plate 7a and lower reinforcing plate 7b of oblique connection, upper reinforcing plate 7a is fixing with conical section panel 6 to be connected, upper reinforcing plate 7a
Inner side be close to the outer wall of conical section panel 6, lower reinforcing plate 7b is fixing with conduit 3 to be connected, and the inner side of lower reinforcing plate 7b is close to
Outer wall in conduit 3.
Further, for convenience hopper is lifted, column 4 is provided with the preformed hole 11 for lifting, reserved
Hole 11 penetrates suspension ring, by hanging device, hopper can be lifted to suitable position.
For making hopper can hold more than 16m3Concrete, big hopper use 10mm steel plate be made, big hopper
A size of 4000 × 4000mm suitable for reading, bottom size is 400 × 400mm, and square section of a height of 1000mm of hopper, cone segments is a height of
1000mm, expects a length of 300mm of mouth, and base 2 and column 4 are made by I25a I-steel, and diagonal brace 8 and cross-brace 1 are by ［ 20
Channel-section steel is made.
The present embodiment uses following conduit platform, including lower support 13, upper support 14 and clamp 17, and lower support 13 and upper
Support 14 and include that the Two bors d's oeuveres I-steel that two rows be arranged in parallel, upper support 14 are vertically set on above lower support 13 respectively, upper
The end face of support 14 is provided with clamp 17, and wherein, lower support 13 uses 2I40 I-steel, and upper support uses 2I22 I-steel；Card
Plate 17 includes the first card Slab element and the second card Slab element, the first card Slab element and the second clamp unit spliced together, and in
Between be provided with guide hole, guide hole matches with conduit 16.The position of conduit 16 can be efficiently controlled by conduit platform, make to lead
Pipe 16 is positioned over the center of pile foundation, thus ensures the pouring quality of concrete.Conduit 16 is made up of some sections of duct unit splicings,
Duct unit two ends are designed with catheter adapter, use Flange joint between catheter adapter, and duct unit outer wall distance top 40 ~
At 50cm, welding φ 8 reinforcing bar is as snap ring 17, and snap ring can make the top card of conduit 16 on conduit platform.Duct unit it
Between connected by form of flanges, can effectively prevent water injection through pipe phenomenon from occurring.
For the quality condition of effective keyhole stake, in step (4), during assembled steel reinforcement cage, sounding is installed simultaneously
Pipe, sound detecting pipe is equally spaced along the stirrup surrounding of steel reinforcement cage, on the bottom of steel reinforcement cage, centre and top respectively with iron wire by sound
Test tube is together with reinforcing bar binding, and when preventing pouring underwater concrete, sound detecting pipe floats, and during detection, hole depth is inadequate；Steel reinforcement cage is transferred
Behind location, before sound detecting pipe binds end, in pipe, fill clear water, prevent concrete water mud from penetrating in pipe.
For preventing ground pump pump line blocking, in step (6), described ground pump is additionally provided with emergent pump line, when pump line blocks,
Use emergent pump line to replace pump line delivering concrete, so can ensure the seriality that filling concrete is constructed.
Claims (8)
1. the method for filling of a corrosion geology large diameter drill hole pile under water, it is characterised in that comprise the following steps:
(1) perforate: inserted to play steel pile casting at stake position；Prepare enough mud, before spudding in, in the hole of steel pile casting, inject mud with slush pump,
It is subsequently adding ball clay, drill bit alignment stake holes center, repeated stock stake position pulping；
(2) drilling and forming hole: drag for slag in drilling process in time；
(3) clear hole: after being bored into designed elevation, checks with inspecting hole device reply hole depth, Kong Wei, hole shape, aperture, checks out
Bi Houyong changes slurry processes and carries out clear hole, makes sediment thickness at the bottom of whole hole, hole be less than 5cm, and in hole, the proportion of mud is 1.03～1.25；
(4) steel reinforcement cage is placed: assembled steel reinforcement cage, and carries out integral hoisting hand-hole；
(5) conduit is transferred: install conduit platform at steel pile casting top, and conduit Platform center is provided with for dismounting and A/C
Clamp, clamp center and pile foundation center, on the same line, are transferred conduit from clamp center, and are completed between conduit on clamp
The splicing carried out, transfers complete to conduit；
(6) first batch of filling concrete: make capacity more than 16m3Big hopper, by the lifting of big hopper on conduit platform, hopper with
Conduit connects；At 2 ~ 4 concrete tanks of arrangement and 2 ~ 4 tableland pumps on bank, the pump line of ground pump accesses big by interim pontoon bridge
In hopper, in concrete tank delivering concrete to ground pump, concrete is pumped in Fructus Anisi Stellati bucket by ground pump, and big hopper is carried out after filling
Pull out ball, use 2 ~ 4 tableland pumps to carry out feed simultaneously, it is ensured that the depth of tremie after first batch of filling concrete is more than 1.5m；
(7) follow-up filling concrete: after first batch of filling concrete, it is 2 ~ 5 m that big hopper replaces to capacity3Little hopper
Being irrigated, perfusion, to designed elevation, extracts conduit.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 1, it is characterised in that:
Described big hopper includes that hopper body, hopper body include square section of panel, conical section panel and hopper conduit, square section
Panel and conical section panel surround material trough, and material trough connects with hopper conduit, and hopper conduit bottom outside is provided with base, base
Four angles be provided with column, the top of column and square section of panel are fixing to be connected, outside described square section of panel and conical section panel
Being interval with dried layer cross-brace if enclosing, described base is additionally provided with some diagonal braces, the upper end of diagonal brace is supported in conical section face
In the cross-brace of plate.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 2, it is characterised in that: described cone
The first stiffener being provided with triangle between shape section panel and column is reinforced；Described column and the both sides pair, junction of base
The second stiffener being provided with triangle is claimed to reinforce.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 2, it is characterised in that lead described in:
Pipe and the junction of conical section panel, be provided with reinforcing plate and reinforce；Described reinforcing plate include oblique connection upper reinforcing plate and
Lower reinforcing plate, upper reinforcing plate is fixing with conical section panel to be connected, and lower reinforcing plate is fixing with conduit to be connected.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 1, it is characterised in that:
Described conduit platform includes that lower support, upper support and clamp, lower support and upper support include what two rows be arranged in parallel respectively
Two bors d's oeuveres I-steel, upper support is vertically set on above lower support, and the end face of upper support is provided with clamp, and described clamp includes
Together, and centre is provided with conduit for one card Slab element and the second card Slab element, the first card Slab element and the second clamp unit spliced
Hole, guide hole matches with conduit.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 1, it is characterised in that:
In described step (4), during assembled steel reinforcement cage, sound detecting pipe is installed simultaneously, in the bottom of steel reinforcement cage, centre and pushing up
Sound detecting pipe is fixed together with reinforcing bar by end respectively with fixture.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 1, it is characterised in that lead described in:
Pipe is made up of some sections of duct unit splicings, and duct unit two ends are designed with catheter adapter, uses flange even between catheter adapter
Connect, be located at highest point duct unit outer wall distance top 40 ~ 50cm and weld φ 8 reinforcing bar as snap ring.
The method for filling of corrosion geology large diameter drill hole pile under water the most according to claim 1, it is characterised in that: described step
Suddenly in (6), described ground pump is additionally provided with emergent pump line, when pump line blocks, uses emergent pump line to replace pump line delivering concrete.
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| CN201610686383.1A CN106245628B (en) | 2016-08-19 | 2016-08-19 | A kind of method for filling of the underwater large diameter drill hole pile of corrosion geology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686383.1A CN106245628B (en) | 2016-08-19 | 2016-08-19 | A kind of method for filling of the underwater large diameter drill hole pile of corrosion geology |
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| CN108316303A (en) * | 2018-03-07 | 2018-07-24 | 江苏龙源振华海洋工程有限公司 | A kind of instillation process of embedded rock pile underwater concrete |
| CN108316304A (en) * | 2018-04-09 | 2018-07-24 | 江苏龙源振华海洋工程有限公司 | A kind of concrete sealing bottom magazine attachment |
| CN109098178A (en) * | 2018-09-28 | 2018-12-28 | 中国电建市政建设集团有限公司 | A kind of concrete-spouting plant |
| CN109208606A (en) * | 2018-09-04 | 2019-01-15 | 广东省建筑工程机械施工有限公司 | A kind of pile foundation construction job platform and its construction method |
| CN109322300A (en) * | 2018-11-23 | 2019-02-12 | 中铁六局集团有限公司 | A kind of major diameter device for casting and major diameter method for filling |
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| CN111305193A (en) * | 2020-03-19 | 2020-06-19 | 张家口众益岩土工程有限公司 | Construction method for pouring concrete pile by using telescopic guide pipe |
| CN111733801A (en) * | 2020-06-28 | 2020-10-02 | 中冶地集团西北岩土工程有限公司 | Construction process of rotary drilling bored concrete pile in soft geology |
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| CN108316303A (en) * | 2018-03-07 | 2018-07-24 | 江苏龙源振华海洋工程有限公司 | A kind of instillation process of embedded rock pile underwater concrete |
| CN108316304A (en) * | 2018-04-09 | 2018-07-24 | 江苏龙源振华海洋工程有限公司 | A kind of concrete sealing bottom magazine attachment |
| CN109208606A (en) * | 2018-09-04 | 2019-01-15 | 广东省建筑工程机械施工有限公司 | A kind of pile foundation construction job platform and its construction method |
| CN109098178A (en) * | 2018-09-28 | 2018-12-28 | 中国电建市政建设集团有限公司 | A kind of concrete-spouting plant |
| CN109322300A (en) * | 2018-11-23 | 2019-02-12 | 中铁六局集团有限公司 | A kind of major diameter device for casting and major diameter method for filling |
| CN109356171A (en) * | 2018-11-28 | 2019-02-19 | 中国十七冶集团有限公司 | A kind of device and its operating method blocking solution cavity using rubber bag |
| CN111305193A (en) * | 2020-03-19 | 2020-06-19 | 张家口众益岩土工程有限公司 | Construction method for pouring concrete pile by using telescopic guide pipe |
| CN111305193B (en) * | 2020-03-19 | 2022-04-29 | 张家口众益岩土工程有限公司 | Construction method for pouring concrete pile by using telescopic guide pipe |
| CN111733801A (en) * | 2020-06-28 | 2020-10-02 | 中冶地集团西北岩土工程有限公司 | Construction process of rotary drilling bored concrete pile in soft geology |
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|---|---|
| CN106245628B (en) | 2018-12-25 |
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