CN110241800A - Drilling platform construction method under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle - Google Patents
Drilling platform construction method under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle Download PDFInfo
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- CN110241800A CN110241800A CN201910515112.3A CN201910515112A CN110241800A CN 110241800 A CN110241800 A CN 110241800A CN 201910515112 A CN201910515112 A CN 201910515112A CN 110241800 A CN110241800 A CN 110241800A
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- 238000010276 construction Methods 0.000 title claims abstract description 89
- 238000005553 drilling Methods 0.000 title claims abstract description 53
- 239000011435 rock Substances 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000004873 anchoring Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000010410 reperfusion Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 241000282693 Cercopithecidae Species 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/0008—Methods for grouting offshore structures; apparatus therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention proposes drilling platform construction method under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle, comprising: S001: having marked in construction area or neighbouring opposed flattened, high-land region；S002: processing starting platform, and the construction of back cover concrete is carried out after starting platform is lifted to opposed flattened, high-land region；S003: installing the first cantilever leading truck on starting platform, and lift expansion platform on the first cantilever leading truck, carries out the construction of back cover concrete；S004: the second cantilever leading truck is installed on starting platform and/or expansion platform, drilling construction is carried out to naked rock, the lower end of steel pipe is inserted into the drilling on naked rock, the top of steel-pipe pile is fixedly connected with the second cantilever leading truck, pour anchoring concrete into steel-pipe pile, then toward building drilling platform on the second cantilever leading truck and the steel-pipe pile anchored；S005: continuing to install the second cantilever leading truck on toward drilling platform, then the repeatedly steel pipe pile driving construction in S004 and drilling platform construction, until completing to build working platform to construction area.
Description
Technical field
The invention belongs to technical field of bridge construction, and in particular to drilling platform under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle
Construction method.
Background technique
The king-tower of bridge spanning the sea is generally built on sea bed, and the regional dip angle having on sea bed is big, and rock is exposed, does not have
Coating can not set Platform pipe stake using vibration pile monkey, and because bare rock influences, sea situation is more complicated, and not only water flow is anxious
And be in turbulent condition, water flow impact pressure is big, and single steel-pipe pile, which can not take root, to be difficult to stablize, when according to traditional platform building method
It cannot achieve.
Summary of the invention
In consideration of it, the object of the present invention is to provide drilling platform construction method under a kind of disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle,
For overcoming the above problem or at least being partially solved or alleviate the above problem.
The present invention proposes drilling platform construction method under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle, comprising the following steps:
S001: detecting the landform of the sea bed of construction area, has marked the naked petrographic province domain of the high inclination-angle in construction area
With the opposed flattened and high-land region near construction area；
S002: processing starting platform connects multiple steel-pipe piles in the downward vertical of starting platform, and under starting platform
Side is equidistantly laterally set side by side the initial segment leading truck, and the initial segment leading truck is truss structure, at the same with starting platform and steel-pipe pile
It is fixedly connected, starting platform is lifted into opposed flattened region on the sea bed to construction area, then starting platform is carried out
The construction of back cover concrete；
S003: towards installing the first cantilever guiding on the initial segment leading truck of the side of construction area on starting platform
Frame, then the integral hoisting expansion platform on the first cantilever leading truck, then carries out the construction of back cover concrete to expansion platform；
S004: towards the side point in the naked petrographic province domain of high inclination-angle in construction area on starting platform and/or expansion platform
Section the second cantilever leading truck of installation, then transfers steel-pipe pile, carries out drilling construction to naked rock in steel-pipe pile using impact drill,
The lower end of steel pipe is inserted into the drilling on naked rock, the top of steel-pipe pile is fixedly connected with the second cantilever leading truck, it is then past
Pour anchoring concrete in steel-pipe pile, then toward building drilling platform on the second cantilever leading truck and the steel-pipe pile anchored；
S005: continue that the second cantilever leading truck is installed on toward drilling platform, then repeatedly in S004 to the construction of steel-pipe pile
With the construction to drilling platform, until complete working platform is built to construction area.
In S002, cofferdam is welded in advance between the steel-pipe pile of the lower part outermost of starting platform.
In S002, starting platform is lifted after the sea bed to construction area is opposed flattened and high-land region, is led to
It crosses crane barge to level starting platform, after then transferring steel column into hanging steel-pipe pile, by the top of steel column and steel-pipe pile
It is welded and fixed, is supported on hanging steel-pipe pile on sea bed by steel column.
In S002, cofferdam is checked before the construction of back cover concrete, if there is gap in cofferdam and sea bed face, using gunnysack
Dress stone is blocked.
In S003, cofferdam is welded in the lower end of the steel-pipe pile into expansion platform in advance, is carrying out back cover to expansion platform
Before concrete construction, steel column is transferred in hanging steel-pipe pile, then the top of steel column is welded and fixed with steel-pipe pile, to cofferdam and sea
Gap between bed is blocked.
In S003, the steel-pipe pile in the steel-pipe pile and expansion platform in starting platform is fixed using lateral or bridging
Connection.
In S004, temporary platform is built on the steel-pipe pile anchored and the second cantilever leading truck, then by impact drill
Machine, which is lifted into temporary platform, carries out boring work.
In S004, after drilling, steel pipe with proceeding to sea bed face or less 2m, then is used gas lift reverse circulation by the mode that first hammers
Mode carry out borehole cleaning construction, then Reperfu- sion underwater concrete is anchored, then removes temporary platform.
Beneficial effects of the present invention:
Drilling platform construction method is first in construction area sea selected around under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention
The opposed flattened and high-land region of bed, it is then opposed flattened for sea bed and high-land region entirety processes starting platform, it will rise
Beginning platform is integrally transferred on smooth and high-land region sea bed, is then anchored, then with smooth and high-land region
Cantilever leading truck is built to the naked rock region direction of high inclination-angle based on starting platform, is then built on cantilever leading truck whole
Perhaps joint steel pipe stake anchors expansion platform or anchoring steel-pipe pile to expansion platform again one by one, and drilling is built on steel-pipe pile
Platform.Drilling platform construction method can avoid vibration pile monkey and beat steel pipe pile driving construction step under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention
Suddenly, integral fastening is carried out to the starting platform put up, stable structure, difficulty of construction is low, then takes based on starting platform
The the second cantilever leading truck for stretching to the naked rock overlying regions of high inclination-angle is built, and anchors steel pipe downwards based on the second cantilever leading truck
Stake and drilling platform is built, until completing construction area builds working platform, solves high inclination-angle under turbulent Condition of Supercritical Flow naked
The construction difficult problem that the drilling platform steel-pipe pile of petrosa position can not take root, improves construction efficiency.
Detailed description of the invention
Fig. 1 is when building up initial platform under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention in drilling platform construction method
Constructing structure schematic diagram；
Fig. 2 is when building up expansion platform under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention in drilling platform construction method
Constructing structure schematic diagram；
Fig. 3 is when establishing temporary platform under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention in drilling platform construction method
Constructing structure schematic diagram；
Fig. 4 is constructing structure when drilling in drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention
Schematic diagram；
Fig. 5 is the good coagulation of after-pouring that drills in drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention
Soil and constructing structure schematic diagram when putting up drilling platform；
Fig. 6 is to build next section second under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle of the invention in drilling platform construction method to hang
Constructing structure schematic diagram when arm leading truck.
In the above figure: 1 starting platform；2 steel-pipe piles；3 the initial segment leading trucks；4 expansion platforms；5 first cantilever leading trucks；
6 second cantilever leading trucks；7 temporary platforms；8 drilling platforms；9 laterals；10 bridgings；11 cofferdam；12 percussive drills.
The present invention is described in further details below with reference to accompanying drawings and embodiments；
Specific embodiment
Embodiment 1
The embodiment of the present invention proposes 8 construction method of drilling platform under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle, including with
Lower step: S001: detecting the landform of the sea bed of construction area, marked the naked petrographic province domain of the high inclination-angle in construction area and
Opposed flattened and high-land region near construction area；S002: Fig. 1 is referred to, starting platform 1 is processed, in starting platform 1
Downward vertical connects multiple steel-pipe piles 2, and the initial segment leading truck 3 is equidistantly laterally set side by side in the downside of starting platform 1, originates
Section leading truck 3 is truss structure, while being fixedly connected with starting platform 1 and steel-pipe pile 2, by the lifting of starting platform 1 to construction area
Opposed flattened and high-land region on sea bed near domain, then carries out the construction of back cover concrete to starting platform 1；S003: with reference to figure
2, towards the first cantilever leading truck 5 is installed on the initial segment leading truck 3 of the side of construction area on starting platform 1, then exist
Then integral hoisting expansion platform 4 on first cantilever leading truck 5 carries out the construction of back cover concrete to expansion platform 4；S004: Fig. 3 is referred to
And Fig. 4, installation is segmented towards the side in the naked petrographic province domain of high inclination-angle in construction area on starting platform 1 and/or expansion platform 4
Then second cantilever leading truck 6 transfers steel-pipe pile 2, carry out drilling construction to naked rock in steel-pipe pile 2 using impact drill, will
The lower end of steel-pipe pile 2 is inserted into the drilling on naked rock, the top of steel-pipe pile 2 is fixedly connected with the second cantilever leading truck 6, then
Anchoring concrete is poured into steel-pipe pile 2, then, builds drilling platform 8 on the second cantilever leading truck 6 and the steel-pipe pile 2 anchored；
S005: referring to Fig. 6, toward drilling platform 8 on continue the second cantilever leading truck 6 of installation, then repeatedly applying to steel-pipe pile 2 in S004
Work and construction to drilling platform 8, until completing to build working platform to construction area.
Platform 1 to be initiated again bridge location nearby harbour processing it is integral after, use 1000t crane barge handling starting platform 1 to finger
Progress lower section is set in positioning, according to the direction adjusted, is directly transferred using slack period.The downside connection of starting platform 1 is more
The length of a steel-pipe pile 2, steel-pipe pile 2 designs in advance according to sea bed landform, guarantees that the upper surface of starting platform 1 is in horizontal
Each steel-pipe pile 2 touches as far as possible with sea bed face when state.Expansion platform 4 is divided into five pieces, takes from the starting platform 1 set up
Extend the method set up to main tower of bridge direction block-by-block to construct, the processing of 4 substructure of expansion platform is integral, using 150t
After crane barge lifting lower section is in place, it is fixed on the positioning using the first cantilever leading truck 5 being welded on starting platform 1, then carry out
Underwater back cover concrete construction.Lateral 9 and bridging 10 is used to connect into after the completion of the construction of underwater back cover concrete with starting platform 1 whole
Body utilizes crawler crane construction 4 superstructure of expansion platform on starting platform 1.With reference to Fig. 6, from the expansion platform 4 set up to
Main tower of bridge direction sets steel-pipe pile 2 by root load using the second cantilever leading truck 6 and impact drill, and sets up drilling platform 8 paragraph by paragraph.
Embodiment 2
With reference to Fig. 1, in S002, cofferdam is welded in advance between the steel-pipe pile 2 of the outermost of the lower part of starting platform 1
11。
It carries out underwater back cover concrete to 2 surrounding of steel-pipe pile in initial platform using conduit to construct, cofferdam 11 can will be underwater
The concrete of back cover gathers together, and anchors it to the lower end of the steel-pipe pile 2 of initial platform.
Embodiment 3
With reference to Fig. 1, in S002, by the lifting of starting platform 1 to construction area sea bed is opposed flattened and high-land region
Afterwards, starting platform 1 is leveled by crane barge, then into hanging steel-pipe pile 2 transfer steel column after, by the top of steel column with
Steel-pipe pile 2 is welded and fixed, and is supported on hanging steel-pipe pile 2 on sea bed face by steel column.
In view of that can not achieve the effect that each steel-pipe pile 2 can be arrived with sea bed face contact due to various reasons, need
It to use crane barge to level starting platform 1, then carry out back cover concrete construction to it, after waiting back covers concrete to solidify, entire starting is flat
Platform 1 can be fixed on horizontality.
Embodiment 4
With reference to Fig. 1, in S002, cofferdam 11 is checked before the construction of back cover concrete, if cofferdam 11 has with sea bed face
Gap is blocked using small gunnysack dress handstone.
The lower edge in cofferdam 11 is made according to sea bed face landform, and the lower edge in cofferdam 11 is made to connect with sea bed face as far as possible
Touching.If diver checks certain positions in cofferdam 11 and there is gap in sea bed face, using the small gunnysack pair for filling handstone
Gap position is blocked, and underwater concrete is flowed out from gap when preventing back cover concrete from constructing.
Embodiment 5
With reference to Fig. 2, in S003, cofferdam 11 is welded in the lower end of the steel-pipe pile 2 into expansion platform 4 in advance, to extension
Before platform 4 carries out the construction of back cover concrete, steel column is transferred in hanging steel-pipe pile 2, then welds the top of steel column and steel-pipe pile 2
It is fixed, the gap between cofferdam 11 and sea bed is blocked.
After steel column is contacted as the extension site of steel-pipe pile 2 with sea bed, steel column is welded in steel-pipe pile 2, steel is equivalent to
Tubular pole 2 is supported on sea bed.
Embodiment 6
With reference to Fig. 2, in S004, using lateral 9 or bridging 10 by the steel-pipe pile 2 and expansion platform 4 in starting platform 1
In steel-pipe pile 2 be fixedly connected.
After pouring anchoring concrete around the steel-pipe pile 2 of expansion platform 4, stable support has been obtained in the vertical direction, then
After being fixedly connected with the steel-pipe pile 2 in starting platform 1 with the steel-pipe pile 2 in expansion platform 4 using lateral 9 and bridging 10, make
Expansion platform 4 obtains stable support in the horizontal direction.
Embodiment 7
With reference to Fig. 3 and Fig. 4, in S005, built on the steel-pipe pile 2 anchored and the second cantilever leading truck 6 interim flat
Then percussive drill 12 is lifted into temporary platform 7 and carries out boring work by platform 7.
Temporary platform 7 is than 1 surface bottom of expansion platform 4 and starting platform, for being used as staff and Shi in work progress
The transitional operation platform of construction equipment.
Embodiment 8
With reference to Fig. 5, in S005, after drilling, steel pipe with proceeding to sea bed face or less 2m, then is used gas by the mode that first hammers
It lifts reverse circulating mode and carries out borehole cleaning construction, then Reperfu- sion underwater concrete is anchored, then removes temporary platform 7.
Due to not can be carried out the construction of back cover concrete on the naked rock surface of high inclination-angle, this just needs to drill on naked rock, and by steel pipe
Stake 2 hammers in the hole being drilled, and concrete will not leak when such casting concrete, steel-pipe pile 2 can be anchored at the naked of high inclination-angle
On rock.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.The well-known components and common structure or conventional means of component and the structure category industry that the present embodiment does not describe in detail,
Here it does not describe one by one.
Claims (8)
1. drilling platform construction method under a kind of disorderly Condition of Supercritical Flow of naked rock of high inclination-angle, which comprises the following steps:
S001: detecting the landform of the sea bed of construction area, has marked the naked rock areas adjacent of the high inclination-angle in construction area
Opposed flattened and high-land region；
S002: first processing starting platform, connects multiple steel-pipe piles in the downward vertical of starting platform, and in the downside of starting platform
Equidistant that the initial segment leading truck is laterally set side by side, the initial segment leading truck is truss structure, while solid with starting platform and steel-pipe pile
Starting platform is lifted opposed flattened on the sea bed to construction area and high-land region by fixed connection, then flat to starting
Platform carries out the construction of back cover concrete；
S003: towards the first cantilever leading truck is installed on the initial segment leading truck of the side of construction area on starting platform, so
Then the integral hoisting expansion platform on the first cantilever leading truck afterwards carries out the construction of back cover concrete to expansion platform；
S004: installing the second cantilever leading truck towards the side in the naked petrographic province domain of high inclination-angle in construction area on expansion platform,
Then steel-pipe pile is transferred, drilling construction is carried out to the naked rock of sea bed in steel-pipe pile using impact drill, by the lower end of steel-pipe pile
It is inserted into the drilling on naked rock, the top of steel-pipe pile is fixedly connected with the second close cantilever leading truck, then toward steel-pipe pile
In pour anchoring concrete, then toward building drilling platform on the second cantilever leading truck and the steel-pipe pile anchored；
S005: continue that the second cantilever leading truck, the then repeatedly steel pipe pile driving construction in S004 and drilling are installed on toward drilling platform
Platform construction, until completing to build working platform to construction area.
2. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle according to claim 1, which is characterized in that
In S002, cofferdam is welded in advance between the steel-pipe pile of the lower part outermost of starting platform.
3. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle according to claim 2, which is characterized in that
In S002, starting platform is lifted after the sea bed to construction area is opposed flattened and high-land region, it is flat to starting by crane barge
Platform is leveled, and after then transferring steel column into hanging steel-pipe pile, the top of steel column is welded and fixed with steel-pipe pile, is made hanging
Steel-pipe pile be supported on sea bed by steel column.
4. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle according to claim 3, which is characterized in that
In S002, cofferdam is checked before the construction of back cover concrete, if there is gap in cofferdam and sea bed face, is carried out using gunnysack dress stone
It blocks.
5. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle according to claim 1, which is characterized in that
In S003, cofferdam is welded in the lower end of the steel-pipe pile into expansion platform in advance, before carrying out the construction of back cover concrete to expansion platform,
Steel column is transferred in hanging steel-pipe pile, then the top of steel column is welded and fixed with steel-pipe pile, to the sky between cofferdam and sea bed
It is blocked at gap.
6. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle according to claim 1, which is characterized in that
In S003, the steel-pipe pile in starting platform is fixedly connected with the steel-pipe pile in expansion platform using lateral or bridging.
7. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle described in claim 1 that follows up, which is characterized in that
In S004, temporary platform is built on the steel-pipe pile anchored and the second cantilever leading truck, then percussive drill is lifted into and is faced
Boring work is carried out on Shi Pingtai.
8. drilling platform construction method under the disorderly Condition of Supercritical Flow of the naked rock of high inclination-angle according to claim 7, which is characterized in that
In S004, after drilling, the mode first hammered carries out steel pipe with proceeding to sea bed face or less 2m, then by the way of gas lift reverse circulation
Borehole cleaning construction, then Reperfu- sion underwater concrete is anchored, then removes temporary platform.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605344A (en) * | 2021-09-16 | 2021-11-05 | 中国铁建大桥工程局集团有限公司 | Deepwater foundation combined drilling platform and erection method |
| CN113622896A (en) * | 2021-06-11 | 2021-11-09 | 中铁大桥科学研究院有限公司 | Cable-stayed bridge deepwater ultra-long pile drilling data digital identification method and device |
| CN115652792A (en) * | 2022-10-28 | 2023-01-31 | 中铁四局集团第二工程有限公司 | Construction method of steel trestle bench method |
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Application publication date: 20190917 |