CN110130343A - Steel casing planting construction method suitable for deep water bare rock condition - Google Patents
Steel casing planting construction method suitable for deep water bare rock condition Download PDFInfo
- Publication number
- CN110130343A CN110130343A CN201910385664.7A CN201910385664A CN110130343A CN 110130343 A CN110130343 A CN 110130343A CN 201910385664 A CN201910385664 A CN 201910385664A CN 110130343 A CN110130343 A CN 110130343A
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- China
- Prior art keywords
- steel pile
- pile casting
- steel
- leading truck
- crane
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 175
- 239000010959 steel Substances 0.000 title claims abstract description 175
- 238000010276 construction Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000011435 rock Substances 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 238000005266 casting Methods 0.000 claims description 125
- 238000000034 method Methods 0.000 claims description 8
- 238000009432 framing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002932 luster Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000010079 rubber tapping Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- 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
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/18—Placing by vibrating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
Landscapes
- 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)
Abstract
The invention discloses a steel casing planting construction method suitable for deep water bare rock conditions, which comprises the steps of sequentially carrying out guide frame design and in-place operation, primary sinking operation of a steel casing hoisting steel casing, impact drilling in-place lead holes and secondary sinking operation of the steel casing. In order to enable the steel pile casing to extend into a more compact rock stratum, a drill bit slightly smaller than the inner diameter of the steel pile casing is used for punching in the steel pile casing which is inserted for the first time, after the steel pile casing is punched to the bottom end of the steel pile casing and extends into a hard rock stratum, the steel pile casing is vibrated by a vibration hammer until the steel pile casing does not sink any more, so that the stability of the steel pile casing after being planted is greatly improved, and the problem of slurry leakage at the bottom of the steel pile casing is also avoided.
Description
Technical field
The present invention relates to field of bridge construction, specifically a kind of steel pile casting suitable under the conditions of deep water drift net transplants construction
Method.
Background technique
In bridge construction, the bridge pier of bridge is established using underwater drilling pile construction method.Drilled pile construction mistake on the water
Cheng Zhong, ground mulching layer is relatively thin at bridge site, and lower floating layer is hard mud stone, mud stone burning into sand rock, and rock stratum is oblique, trestle,
Platform pipe stake is difficult to realize using common process rapping insertion soil layer, i.e., enabled to squeeze into, overall stability is poor.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of steel pile castings suitable under the conditions of deep water drift net to transplant construction
Method, it is ensured that the lower part of steel pile casting is transplanted in rock stratum, the stability after guaranteeing steel pile casting plant.
The technical solution of the present invention is as follows:
A kind of steel pile casting plant construction method suitable under the conditions of deep water drift net, has specifically included following steps:
(1), leading truck design and in place:
Applying for casing is not planted in water to carry out on the drilling platform for sink to positioning, it is land not plant applying for casing and sink to determining for interim inserting piling
It is carried out in the steel pipe pile framing of position；Leading truck is lattice shape, and leading truck includes upper layer and lower layer structure, superstructure and understructure
Four corners of bottom are provided with jack；
(2), steel pile casting lifts by crane:
Steel pile casting is transported to scene, is lifted by crane simultaneously in aperture using crawler crane and crane, crawler crane hangs steel pile casting top opening, crane hook
Firmly steel pile casting base opening, while steel pile casting is holded up in operation, after steel pile casting is holded up, is unclamped crane, is mentioned steel pile casting by crawler crane
It is hung in leading truck；
(3), steel pile casting is applied heavy for the first time:
The accurate sinking of head section steel pile casting is the key that guarantee that steel pile casting integral planar position and verticality, steel pile casting enter leading truck
Afterwards, adjusting the jack in leading truck understructure makes steel pile casting center and pile center coincide, with total station along orthogonal
Both direction observation corrects four jack of clamping leading truck superstructure after steel pile casting verticality, it is ensured that applies hanging down before sinking
Straight degree meets the requirements；Steel pile casting progress is applied for the first time using vibration hammer during sinking, with total station along orthogonal two sides
It is observed to overall process, with entangling, slowly sinking, until rapping steel pile casting no longer sinks, removes leading truck partially；
(4), impact drill pilot hole in place:
The steel pipe that steel pile casting exposes drilling platform top surface or more is cut off, drill hole of drilling machine is then placed on drilling platform, is used
The tup that diameter is less than steel pile casting internal diameter is extend into steel pile casting in the rock stratum carried out below pilot hole to steel pile casting bottom end；
(5), steel pile casting it is secondary apply it is heavy:
After pilot hole pore-forming, pilot hole drilling machine is hung into shifting from stake position, leading truck is placed and is convenient for steel pile casting spreading, with total station along mutually
Vertical both direction observation ensures that the secondary verticality applied before sinking meets the requirements with leading truck adjustment steel pile casting；Using vibration
Hammer to steel pile casting carry out it is secondary apply it is heavy during, observed with total station along orthogonal both direction overall process, with partially with entangling,
Slowly sink, until rapping steel pile casting no longer sinks, then connects high steel pile casting, remove leading truck.
The leading truck is made of the I-steel frame being welded on more steel pipes, passes through I-shaped between more steel pipes
Channel steel forms lattice shape entirety, leading truck bottom and drilling platform or the positioning steel tube pile framing of land inserting piling takes welding solid
It is fixed.
In the step (2), steel pile casting lifting is lifted by crane using 50t crawler crane and 25t crane.
The steel pile casting is secondary apply it is heavy after, weldering sets truss connection between steel pile casting side wall and the steel-pipe pile of drilling platform
System, the truss connection system includes the two lateral steel up and down being welded between steel pile casting and the steel-pipe pile of drilling platform
The upright bar manage, being welded between two lateral steel pipes and two braces, the top of every brace and the top of upright bar are welded and fixed,
The bottom end of every brace end corresponding with lower layer's lateral steel pipe is welded and fixed.
In the step (5), the step of connecing high steel pile casting are as follows: steel pile casting mating interface is cleared up first, is appeared
Then the metallic luster of steel out carries out field joint, four pieces of stiffeners are uniformly arranged in steel pile casting outer wall surrounding, with steel pile casting
Outer wall is fully welded, and to guarantee that steel pile casting docks intensity, after the completion of welding, carries out weld cleaning and repairing.
Advantages of the present invention:
Steel pile casting plant is carried out in deep water drift net condition, steel pile casting rapping can penetrate the coating above rock stratum, but downwards
Continue to protrude into that hard rock stratum is extremely difficult, and steel pile casting embedded depth is shallower, during drilling construction, may be leaked in steel pile casting bottom
Slurry, therefore, the present invention use in the steel pile casting of first inserting piling in order to enable steel pile casting to protrude into more closely knit rock stratum and are slightly less than steel
The drill bit of casing internal diameter is punched out, punching to steel pile casting bottom end and after protruding into hard rock stratum, then with vibration hammer rapping steel pile casting
Until steel pile casting no longer sinks, so that the stability after steel pile casting plant greatly improves, the leakage of steel pile casting bottom is also avoided
The problem of slurry.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that steel pile casting is extend into leading truck;
Fig. 2 is the structural schematic diagram that steel pile casting is hung in leading truck;
Fig. 3 is the structural schematic diagram of steel pile casting docking;
Fig. 4 is the structural schematic diagram of truss connection system between steel pile casting and the steel-pipe pile of drilling platform.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
See Fig. 1-Fig. 3, a kind of steel pile casting plant construction method suitable under the conditions of deep water drift net has specifically included following
Step:
(1), leading truck design and in place:
Applying for casing is not planted in water to carry out on the drilling platform for sink to positioning, it is land not plant applying for casing and sink to determining for interim inserting piling
It is carried out in the steel pipe pile framing of position；Leading truck 1 is lattice shape, and leading truck 1 is the I-shaped steel frame by being welded on six roots of sensation steel pipe 11
It forms, whole by the formation lattice shape of I-shaped channel steel 12 between six roots of sensation steel pipe 11, leading truck bottom and drilling platform 2 or land slotting
The positioning steel tube pile framing beaten, which is taken, to be welded and fixed, and leading truck includes upper layer and lower layer structure, superstructure and understructure bottom
Four corners in portion are provided with jack；
(2), steel pile casting lifts by crane:
Steel pile casting 3 is transported to scene, is lifted by crane simultaneously in aperture using 50t crawler crane and 25t crane, 50t crawler crane hangs steel pile casting
Top opening, 25t crane hooks 3 base opening of steel pile casting, while steel pile casting 3 is holded up in operation, after steel pile casting 3 is holded up, unclamps 25t crane,
It will be in steel pile casting 3 lifting to leading truck 1 by 50t crawler crane；
(3), steel pile casting is applied heavy for the first time:
The accurate sinking of head section steel pile casting 3 is the key that guarantee steel pile casting integral planar position and verticality, and steel pile casting enters guiding
After frame, adjusting the jack in 1 understructure of leading truck makes steel pile casting center and pile center coincide, and is mutually perpendicular to total station edge
Both direction observation, correct four jack that leading truck superstructure is clamped after steel pile casting verticality, it is ensured that apply it is heavy before
Verticality meets the requirements；Steel pile casting progress is applied for the first time using vibration hammer during sinking, with total station along orthogonal two
Direction overall process observation, with entangling, slowly sinking, until rapping steel pile casting no longer sinks, removes leading truck partially；
(4), impact drill pilot hole in place:
The steel pipe that steel pile casting 3 exposes 2 top surface of drilling platform or more is cut off, then drill hole of drilling machine is placed on drilling platform 2, adopts
It is extend into steel pile casting 3 in the rock stratum carried out below pilot hole to steel pile casting bottom end with the tup that diameter is less than 3 internal diameter of steel pile casting；
(5), steel pile casting it is secondary apply it is heavy:
After pilot hole pore-forming, pilot hole drilling machine is hung into shifting from stake position, leading truck 1 is placed and is convenient for by 3 spreading of steel pile casting, with total station along phase
Mutually vertical both direction observation, adjusting steel pile casting with leading truck 1 ensures that the secondary verticality applied before sinking meets the requirements；Using vibration
Dynamic hammer to steel pile casting carry out it is secondary apply it is heavy during, observed with total station along orthogonal both direction overall process, with partially with
It entangles, slowly sinks, until rapping steel pile casting no longer sinks, then connect high steel pile casting, remove leading truck；Wherein, it connects
The step of high steel pile casting are as follows: steel pile casting mating interface is cleared up first, the metallic luster of steel is manifested, is then showed
Field docking, is uniformly arranged four pieces of stiffeners 4 in steel pile casting outer wall surrounding, is fully welded with 3 outer wall of steel pile casting, to guarantee that steel pile casting 3 is right
Intensity is connect, after the completion of welding, carries out weld cleaning and repairing.
Wherein, apply for steel pile casting 3 two times it is heavy after, weldering sets truss company between 3 side wall of steel pile casting and the steel-pipe pile 5 of drilling platform
Connecing is (see figure 4), truss connection system include be welded between the steel-pipe pile 5 of steel pile casting 3 and drilling platform up and down two it is flat
Connection steel pipe 6, the upright bar 7 being welded between two lateral steel pipes 6 and two braces 8, the top of every brace 8 and the top of upright bar 7
End is welded and fixed, and the bottom end of every brace 8 end corresponding with lower layer's lateral steel pipe 6 is welded and fixed.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of steel pile casting suitable under the conditions of deep water drift net transplants construction method, it is characterised in that: specifically included following
Step:
(1), leading truck design and in place:
Applying for casing is not planted in water to carry out on the drilling platform for sink to positioning, it is land not plant applying for casing and sink to determining for interim inserting piling
It is carried out in the steel pipe pile framing of position；Leading truck is lattice shape, and leading truck includes upper layer and lower layer structure, superstructure and understructure
Four corners of bottom are provided with jack；
(2), steel pile casting lifts by crane:
Steel pile casting is transported to scene, is lifted by crane simultaneously in aperture using crawler crane and crane, crawler crane hangs steel pile casting top opening, crane hook
Firmly steel pile casting base opening, while steel pile casting is holded up in operation, after steel pile casting is holded up, is unclamped crane, is mentioned steel pile casting by crawler crane
It is hung in leading truck；
(3), steel pile casting is applied heavy for the first time:
The accurate sinking of head section steel pile casting is the key that guarantee that steel pile casting integral planar position and verticality, steel pile casting enter leading truck
Afterwards, adjusting the jack in leading truck understructure makes steel pile casting center and pile center coincide, with total station along orthogonal
Both direction observation corrects four jack of clamping leading truck superstructure after steel pile casting verticality, it is ensured that applies hanging down before sinking
Straight degree meets the requirements；Steel pile casting progress is applied for the first time using vibration hammer during sinking, with total station along orthogonal two sides
It is observed to overall process, with entangling, slowly sinking, until rapping steel pile casting no longer sinks, removes leading truck partially；
(4), impact drill pilot hole in place:
The steel pipe that steel pile casting exposes drilling platform top surface or more is cut off, drill hole of drilling machine is then placed on drilling platform, is used
The tup that diameter is less than steel pile casting internal diameter is extend into steel pile casting in the rock stratum carried out below pilot hole to steel pile casting bottom end；
(5), steel pile casting it is secondary apply it is heavy:
After pilot hole pore-forming, pilot hole drilling machine is hung into shifting from stake position, leading truck is placed and is convenient for steel pile casting spreading, with total station along mutually
Vertical both direction observation ensures that the secondary verticality applied before sinking meets the requirements with leading truck adjustment steel pile casting；Using vibration
Hammer to steel pile casting carry out it is secondary apply it is heavy during, observed with total station along orthogonal both direction overall process, with partially with entangling,
Slowly sink, until rapping steel pile casting no longer sinks, then connects high steel pile casting, remove leading truck.
2. a kind of steel pile casting suitable under the conditions of deep water drift net according to claim 1 transplants construction method, feature
Be: the leading truck is made of the I-steel frame being welded on more steel pipes, passes through I-shaped slot between more steel pipes
Steel formation lattice shape is whole, and the positioning steel tube pile framing of leading truck bottom and drilling platform or land inserting piling, which is taken, to be welded and fixed.
3. a kind of steel pile casting suitable under the conditions of deep water drift net according to claim 1 transplants construction method, feature
Be: in the step (2), steel pile casting lifting is lifted by crane using 50t crawler crane and 25t crane.
4. a kind of steel pile casting suitable under the conditions of deep water drift net according to claim 1 transplants construction method, feature
Be: the steel pile casting is secondary apply it is heavy after, weldering sets truss connection system between steel pile casting side wall and the steel-pipe pile of drilling platform,
The truss connection system includes the two lateral steel pipes up and down being welded between steel pile casting and the steel-pipe pile of drilling platform, weldering
The upright bar being connected between two lateral steel pipes and two braces, the top of every brace and the top of upright bar are welded and fixed, and every
The bottom end of brace end corresponding with lower layer's lateral steel pipe is welded and fixed.
5. a kind of steel pile casting suitable under the conditions of deep water drift net according to claim 1 transplants construction method, feature
It is: in the step (5), the step of connecing high steel pile casting are as follows: steel pile casting mating interface is cleared up first, appears tapping
Then the metallic luster of material carries out field joint, four pieces of stiffeners are uniformly arranged in steel pile casting outer wall surrounding, with steel pile casting outer wall
It is fully welded, to guarantee that steel pile casting docks intensity, after the completion of welding, carries out weld cleaning and repairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385664.7A CN110130343A (en) | 2019-05-09 | 2019-05-09 | Steel casing planting construction method suitable for deep water bare rock condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385664.7A CN110130343A (en) | 2019-05-09 | 2019-05-09 | Steel casing planting construction method suitable for deep water bare rock condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110130343A true CN110130343A (en) | 2019-08-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910385664.7A Pending CN110130343A (en) | 2019-05-09 | 2019-05-09 | Steel casing planting construction method suitable for deep water bare rock condition |
Country Status (1)
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| CN (1) | CN110130343A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395339A (en) * | 2020-03-23 | 2020-07-10 | 中国一冶集团有限公司 | Mounting structure and mounting method for accurately embedding cast-in-situ bored pile casing |
| CN112832237A (en) * | 2021-02-19 | 2021-05-25 | 中交路桥建设有限公司 | Assembly type lengthening structure and method for steel casing for deepwater pile foundation construction |
| CN113756288A (en) * | 2021-09-05 | 2021-12-07 | 华邦建投集团股份有限公司 | Steel pipe pile shallow covering rock-entering rooting or deep covering layer boulder crossing construction method |
| CN114892653A (en) * | 2022-06-14 | 2022-08-12 | 中国建筑第四工程局有限公司 | Steel casing combined structural member and construction method thereof |
| CN116676964A (en) * | 2023-07-27 | 2023-09-01 | 中国建筑第六工程局有限公司 | Bare rock pile foundation construction method under tidal action |
| CN116856408A (en) * | 2023-09-04 | 2023-10-10 | 中交第一航务工程局有限公司 | Sinking method of steel casing suitable for deepwater bare rock area |
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| DE2551273A1 (en) * | 1974-11-20 | 1976-05-26 | Kooten Bv V | CYLINDER PIECE FOR A RAMMBAER |
| CN104947654A (en) * | 2015-07-01 | 2015-09-30 | 杭州江润科技有限公司 | Complicated water area inclined rock face large-diameter cast-in-place pile and construction method |
| CN107675707A (en) * | 2017-09-14 | 2018-02-09 | 中交二航局第三工程有限公司 | Inclined rock base steel pile casting is fixed and bottom blocking method |
| CN108842807A (en) * | 2018-06-29 | 2018-11-20 | 中交第三航务工程局有限公司 | A kind of construction technology of the embedding rock single pile of offshore wind power foundation embedded type |
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2019
- 2019-05-09 CN CN201910385664.7A patent/CN110130343A/en active Pending
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| DE2551273A1 (en) * | 1974-11-20 | 1976-05-26 | Kooten Bv V | CYLINDER PIECE FOR A RAMMBAER |
| CN104947654A (en) * | 2015-07-01 | 2015-09-30 | 杭州江润科技有限公司 | Complicated water area inclined rock face large-diameter cast-in-place pile and construction method |
| CN107675707A (en) * | 2017-09-14 | 2018-02-09 | 中交二航局第三工程有限公司 | Inclined rock base steel pile casting is fixed and bottom blocking method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395339A (en) * | 2020-03-23 | 2020-07-10 | 中国一冶集团有限公司 | Mounting structure and mounting method for accurately embedding cast-in-situ bored pile casing |
| CN112832237A (en) * | 2021-02-19 | 2021-05-25 | 中交路桥建设有限公司 | Assembly type lengthening structure and method for steel casing for deepwater pile foundation construction |
| CN112832237B (en) * | 2021-02-19 | 2024-04-26 | 中交路桥建设有限公司 | Assembled lengthening structure and method for steel casing for deep water pile foundation construction |
| CN113756288A (en) * | 2021-09-05 | 2021-12-07 | 华邦建投集团股份有限公司 | Steel pipe pile shallow covering rock-entering rooting or deep covering layer boulder crossing construction method |
| CN114892653A (en) * | 2022-06-14 | 2022-08-12 | 中国建筑第四工程局有限公司 | Steel casing combined structural member and construction method thereof |
| CN116676964A (en) * | 2023-07-27 | 2023-09-01 | 中国建筑第六工程局有限公司 | Bare rock pile foundation construction method under tidal action |
| CN116856408A (en) * | 2023-09-04 | 2023-10-10 | 中交第一航务工程局有限公司 | Sinking method of steel casing suitable for deepwater bare rock area |
| CN116856408B (en) * | 2023-09-04 | 2023-11-07 | 中交第一航务工程局有限公司 | Sinking method of steel casing suitable for deepwater bare rock area |
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