CN107476301A - A kind of full casing follow-up step construction method of bridge pile foundation - Google Patents
A kind of full casing follow-up step construction method of bridge pile foundation Download PDFInfo
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- CN107476301A CN107476301A CN201710661866.0A CN201710661866A CN107476301A CN 107476301 A CN107476301 A CN 107476301A CN 201710661866 A CN201710661866 A CN 201710661866A CN 107476301 A CN107476301 A CN 107476301A
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- 238000010276 construction Methods 0.000 title claims abstract description 47
- 238000005553 drilling Methods 0.000 claims abstract description 68
- 238000009434 installation Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000010412 perfusion Effects 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 23
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000003325 tomography Methods 0.000 abstract description 7
- 230000008014 freezing Effects 0.000 abstract description 6
- 238000007710 freezing Methods 0.000 abstract description 6
- 239000013049 sediment Substances 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009411 base construction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- 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
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses one kind to be used for the full casing follow-up step construction method of bridge pile foundation, including：(1) casing design and fabrication：Using multiple casings, can mutually be dismantled between each casing；(2) first section casing installation：Head section casings are connected with drill bit of drilling machine；(3) casing Follow-up type bored pile；(4) pile foundation filling concrete and casing are extracted.The present invention is effectively overcome in the easy collapse hole of fracture belt weak broken stratum construction bridges pile foundation boring, the difficulty of easy undergauge; pore-forming hole wall by the synchronous casing that follows up timely protection; no longer occurs the hole wall collapse caused by tomography geology is broken in drilling process, the problems such as excessive velocities occurs in sediment the problems such as so as to efficiently solve the collapse hole occurred in drilling process, bit freezing and after pore-forming borehole cleaning；Bad ground pile foundation construction quality is effectively ensured, it is ensured that the security of pile foundation construction, improve efficiency of construction, reduce cost.
Description
Technical field
The invention discloses one kind to be used for the full casing follow-up step construction method of bridge pile foundation, and in particular to a kind of Earthquake Faulting
With complicated geological layer, soil layer weak broken, rich in the full casing follow-up step construction method in the stratum such as underground water, easy collapse hole.
Background technology
Disorderly on fracture belt stratum at bridge pile foundation, rock mass weak broken, pile foundation passes through dust tomography more, and pore-forming is stranded
Difficulty, easy collapse hole in pore forming process, easy undergauge, so that pile foundation construction quality is difficult to control, it is ensured that the bad ground pile foundation construction matter
Amount turns into problem.
The content of the invention
The purpose of the present invention is difficult above to solve, and designs a kind of full casing follow-up step construction method of bridge pile foundation, real
Border application display, this full casing follow-up pile base construction method is simple and efficient, and cost is low, high safety, and quality is guaranteed.
The technical scheme is that：A kind of full casing follow-up step construction method of bridge pile foundation, including：(1) casing designs
With making：Using multiple casings, can mutually be dismantled between each casing；(2) first section casing installation：Head section casings are bored with rig
Head is connected, and when drill bit of drilling machine direction of rotation is consistent with drill bit drilling direction, casing fastens with drill bit, when opposite direction rotates
Can unlock drill bit of drilling machine and casing state, facilitate and drill bit is carried in borer drilling procedure go out boring mud.Examine after mounting first
Concentricity, the perpendicularity of casing and drill bit of drilling machine are saved, ensures perpendicularity of the casing in follow-up drilling process；Head section casing length
Determined according to surficial geology and drill bit of drilling machine single drilling depth, to ensure drilling progress, head section casings are typically no less than 2m；
(3) casing Follow-up type bored pile：According to the stake position after setting-out, by drill bit of drilling machine center align piles position, vertical drilling, with stake position
Face on the basis of ground, when the upper surface of casing is higher by reference plane H, next casing is connect, until reaching projected depth；(4) stake
Base concrete is irrigated and casing is extracted：Crept into after stake holes to projected depth, lay pile foundation steel bar cage, concrete perfusion, mixed
Coagulate in native filling process, casing Transducers Embedded in Concrete length is calculated according to concrete perfusion quantity and casing diameter, treats that casing buries
Enter concrete length to meet when requiring, extract casing.
It is of the invention effective to overcome in the easy collapse hole of fracture belt weak broken stratum construction bridges pile foundation boring, easy undergauge
Difficulty, pore-forming hole wall by the synchronous casing that follows up timely protection, no longer occur in drilling process because tomography geology is broken and
Caused hole wall collapse, sediment the problems such as so as to efficiently solve the collapse hole occurred in drilling process, bit freezing and after pore-forming borehole cleaning
There is the problems such as excessive velocities；Bad ground pile foundation construction quality is effectively ensured, it is ensured that the security of pile foundation construction, improve
Efficiency of construction, reduces cost.
Such scheme uses multiple casings, from the surface, using the casing of multiple segmentations than using a long shield
Cylinder is more time-consuming, in fact, the casing of multiple segmentations, can reduce the time that drilling is extracted with casing.And long casing is compared,
Shorter casing, beneficial to the positioning between drill bit of drilling machine and stake position, positioning is simpler, more accurately.
Formed preferably, casing is rolled using 30mm steel plates, be 2-3m per segmental height, the technical characteristic is that synthesis is examined
Consider the factors such as pile foundation drilling diameter, casing intensity, pile foundation Bedrock Geology condition and churning driven service behaviour index and determine.2-
3 meters of height as a casing, while a drilling stroke of rig is also served as, be advantageous to the drilling progress of rig, be beneficial to
Positioning between drill bit and stake position.
Preferably, the top of the casing is provided with first connecting portion, all shields in addition to the casing of head sections
The bottom of cylinder is provided with second connecting portion, passes through the second of the first connecting portion of previous casing and latter casing between adjacent casing
Connecting portion is connected.
It can between each other connect, can also be not connected between casing, by the way of connection, be advantageous in step (4)
The extraction of casing, save the engineering time.
Preferably, the internal diameter of the first connecting portion is less than the internal diameter of the second connecting portion, and first connection
The first screwed hole is provided with portion, the second screwed hole is provided with second connecting portion, between first connecting portion and second connecting portion
It is bolted.It is simple to operate.
Preferably, being provided with hanging hole in the first connecting portion, hook, institute are hinged with the outside of the second connecting portion
State and be attached between first connecting portion and second connecting portion by linking up with hanging hole.It is simple to operate.
Preferably, the casing includes the two panels casing piece being hinged, casing piece is away from pin joint described in two panels
One end is connected by buckling piece.In the vertical direction is detachably connected between casing, can also be beaten in the transverse direction of casing in itself
Open, by the technical scheme, during drilling, after the drill bit of rig often bores the depth of a casing height, covered again without taking out drill bit
If next casing, and directly casing can be put, greatly save drilling time.
Preferably, after the completion of pile-casting making, before use, carry out casing preassembling：The casing machined is being applied
Work scene carries out preassembling, examines casing to connect horizontal, vertical limiter positional accuracy and reliability, ensures that casing can be by anticipation
Requirement embedment and extract.
Preferably, whole casing is numbered after the completion of preassembling, when pressing preassembling during subsequent construction
Numbering carries out casing spreading and dismounting.
Preferably, also including the maintenance to casing and casing quantity configuration, to ensure that rig can work continuously, machine is improved
Tool utilization rate of equipment and installations, casing is covered according to rig rate of penetration and pile foundation filling concrete, pipe-pulling speed reasonable disposition 1.5-2, with
Meet that rig can start the drilling of next pile base pile hole in a pile base in perfusion.
Preferably, the extraction of casing, is ejected casing merogenesis with hydraulic push bench, single push pipe length is single-unit casing
Length.
Preferably, vertical fin or spiral ridge are provided with the outer surface of the casing.The setting of fin, it is existing
Help drilling construction, accelerate the progress of drilling, and can enough reduces resistance when casing is extracted.
By implementing above-mentioned technical proposal, the present invention is effectively overcome in the construction bridges stake of fracture belt weak broken stratum
Base drills easy collapse hole, the difficulty of easy undergauge, pore-forming hole wall by the synchronous casing that follows up timely protection, in drilling process no longer
There is the hole wall collapse caused by tomography geology is broken, so as to efficiently solve the collapse hole occurred in drilling process, bit freezing etc.
There is the problems such as excessive velocities in sediment after problem and pore-forming borehole cleaning；Bad ground pile foundation construction quality has been effectively ensured, it is ensured that
The security of pile foundation construction, has saved the engineering time, improves efficiency of construction, reduces cost.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of casing in one embodiment of the invention；
Accompanying drawing 2 is the connection diagram of casing shown in accompanying drawing 1；
Accompanying drawing 3 is casing schematic diagram in another embodiment of the present invention；
Accompanying drawing 4 is the top view of casing in another embodiment of the present invention.
In figure, 1- casings；11- first connecting portions；12- second connecting portions；The screwed holes of 111- first；112- hanging holes；121-
Second screwed hole；122- is linked up with；The vertical fins of 13-.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further detail.
Embodiment 1：
A kind of casing external member for Bridge Pile Foundation Construction, including multiple casings 1, shown in the Structure Figure 1 of casing 1, casing 1
Top is provided with first connecting portion 11, and the bottom of all casings 1 in addition to the casing 1 of head sections is provided with second connecting portion
12, the internal diameter of first connecting portion 11 is less than the internal diameter of the second connecting portion 12, and the is provided with the first connecting portion 11
One screwed hole 111, the second screwed hole 121 is provided with second connecting portion 12, is bolted between adjacent casing 1, it is such as attached
Shown in Fig. 2.
A kind of full casing follow-up step construction method of bridge pile foundation, it is soft to be mainly used in Earthquake Fault Zone complicated geological layer, soil layer
It is weak to crush, include rich in the stratum such as underground water, easy collapse hole, its specific method：(1) casing design and fabrication：Consider pile foundation
The factors such as drilling diameter, casing intensity, pile foundation Bedrock Geology condition and churning driven service behaviour index, calculated according to foregoing experience
Formula, casing material use 30mm roll of steel plate, are 2m per segmental length；(2) first section casing installation：To examine qualified casing with
Drilling bit of rotary-digging drilling rig is connected, and when bit direction is consistent with drill bit drilling direction, casing fastens with drill bit, works as opposite direction
Can unlock drill bit and casing during rotation state, facilitate and drill bit is carried in borer drilling procedure go out boring mud.Examine after mounting
Concentricity, the perpendicularity of head section casings and drilling bit of rotary-digging drilling rig, ensure perpendicularity of the casing in follow-up drilling process；(3) protect
Cylinder Follow-up type bored pile：According to the stake position after setting-out, by bit central align piles position, vertical drilling, using stake position ground as base
Quasi- face, when the upper surface of casing is higher by reference plane H, next casing is connect, until reaching projected depth；Pore-forming hole wall by
The timely protection of synchronous follow-up casing, no longer there is the hole wall collapse caused by tomography geology is broken in drilling process, so as to
There is the problems such as excessive velocities in sediment after the problems such as efficiently solving the collapse hole occurred in drilling process, bit freezing and pore-forming borehole cleaning；
(5) pile foundation filling concrete and casing are extracted：Crept into after stake holes to projected depth, by technical requirements, carry out borehole cleaning, lay stake
Base steel reinforcement cage, concrete perfusion.During filling concrete, shield is calculated according to concrete perfusion quantity and steel pile casting diameter
Cylinder Transducers Embedded in Concrete length, with hydraulic push bench by Follow-up type casing merogenesis top when casing Transducers Embedded in Concrete length meets to require
Go out, be advisable in principle by single-unit casing length of single push pipe length.
Embodiment 2：
A kind of casing external member for Bridge Pile Foundation Construction, including multiple casings 1, the top of casing 1 are provided with first connecting portion
11, the bottom of all casings 1 in addition to the casing 1 of head sections is provided with second connecting portion 12, first connecting portion 11 it is interior
Footpath is less than the internal diameter of the second connecting portion 12, and hanging hole 112 is provided with the first connecting portion 11, second connecting portion 12
Outside is hinged with hook 122, as shown in Figure 3, is attached between adjacent casing 1 by hook 122 with hanging hole 112.Casing 1
Outer surface on be provided with vertical vertical fin 13, as shown in Figure 4.
A kind of full casing follow-up step construction method in bridge pile foundation difficulty pore-forming stratum, including：(1) casing design and fabrication：It is comprehensive
Close and consider the factors such as pile foundation drilling diameter, casing intensity, pile foundation Bedrock Geology condition and churning driven service behaviour index, according to preceding
Empirical formula is stated, casing is rolled using 30mm steel plates and formed, and is 3m per segmental length；(2) casing examination is assembled：To processing
Into casing carry out preassembling at the construction field (site), examine casing to connect horizontal, vertical limiter positional accuracy and reliability, ensure
Casing can be embedded to and extracted by the requirement of anticipation.Whole casing is numbered after the completion of preassembling, during subsequent construction
Casing spreading and dismounting are carried out by numbering during preassembling；(3) first section casing installation：Preassembling is examined into qualified casing and rotation
Dig drill bit of drilling machine to be connected, when bit direction is consistent with drill bit drilling direction, casing fastens with drill bit, when opposite direction is revolved
Can unlock drill bit and casing when turning state, facilitate and drill bit is carried in borer drilling procedure go out boring mud.Examine after mounting first
Concentricity, the perpendicularity of casing and drilling bit of rotary-digging drilling rig are saved, ensures perpendicularity of the casing in follow-up drilling process；(4) casing
Follow-up type bored pile：According to the stake position after setting-out, by bit central align piles position, vertical drilling, on the basis of the ground of stake position
Face, when the upper surface of casing is higher by reference plane H, connect next casing, pore-forming hole wall by synchronous the timely of casing of following up
Protect, no longer occur the hole wall collapse caused by tomography geology is broken in drilling process, so as to efficiently solve drilling process
There is the problems such as excessive velocities in sediment after the problems such as collapse hole of middle appearance, bit freezing and pore-forming borehole cleaning；(5) pile foundation filling concrete and
Steel pile casting is extracted.Crept into after stake holes to projected depth, by technical requirements, carry out borehole cleaning, lay pile foundation steel bar cage, irrigate coagulation
Soil.During filling concrete, casing Transducers Embedded in Concrete length is calculated according to concrete perfusion quantity and steel pile casting diameter,
Follow-up type casing merogenesis is ejected with hydraulic push bench when casing Transducers Embedded in Concrete length meets to require, in principle with single top
Length of tube is that single-unit casing length is advisable；(6) casing maintenance and casing quantity configuration.To ensure that rotary drilling rig can work continuously,
Plant equipment utilization rate is improved, according to rotary drilling rig rate of penetration and pile foundation filling concrete, pipe-pulling speed reasonable disposition 1.5 ~ 2
Follow-up type casing is covered, to meet that rotary drilling rig can start the drilling of next pile base pile hole in a pile base in perfusion.
It is of the invention effective to overcome in the easy collapse hole of fracture belt weak broken stratum construction bridges pile foundation boring, easy undergauge
Difficulty, bad ground pile foundation construction quality is effectively ensured, it is ensured that the security of pile foundation construction, improve efficiency of construction, drop
Low cost.
Embodiment 3：
A kind of casing external member for Bridge Pile Foundation Construction, including multiple casings 1, the top of casing 1 are provided with first connecting portion
11, the bottom of all casings 1 in addition to the casing 1 of head sections is provided with second connecting portion 12, first connecting portion 11 it is interior
Footpath is less than the internal diameter of the second connecting portion 12, and hanging hole 112 is provided with the first connecting portion 11, second connecting portion 12
Outside is hinged with hook 122, is attached between adjacent casing 1 by hook 122 with hanging hole 112.Set on the outer surface of casing 1
It is equipped with spiral ridge.
A kind of full casing follow-up step construction method in bridge pile foundation difficulty pore-forming stratum, including：(1) casing design and fabrication：It is comprehensive
Close and consider the factors such as pile foundation drilling diameter, casing intensity, pile foundation Bedrock Geology condition and churning driven service behaviour index, according to preceding
Empirical formula is stated, casing is rolled using 30mm steel plates and formed, and is 2.5m per segmental length；(2) casing examination is assembled：To processing
The casing of completion carries out preassembling at the construction field (site), examines casing to connect horizontal, vertical limiter positional accuracy and reliability, protects
Casing is demonstrate,proved to be embedded to and extracted by the requirement of anticipation.Whole casing is numbered after the completion of preassembling, in subsequent construction process
In numbering when pressing preassembling carry out casing spreading and dismounting；(3) first section casing installation：By preassembling examine qualified casing with
Drilling bit of rotary-digging drilling rig is connected, and when bit direction is consistent with drill bit drilling direction, casing fastens with drill bit, works as opposite direction
Can unlock drill bit and casing during rotation state, facilitate and drill bit is carried in borer drilling procedure go out boring mud.Examine after mounting
Concentricity, the perpendicularity of head section casings and drilling bit of rotary-digging drilling rig, ensure perpendicularity of the casing in follow-up drilling process；(4) protect
Cylinder Follow-up type bored pile：According to the stake position after setting-out, by bit central align piles position, vertical drilling, using stake position ground as base
Quasi- face, when the upper surface of casing is higher by reference plane H, connect next casing, pore-forming hole wall by the synchronous casing that follows up and
When protect, no longer occur the hole wall collapse caused by tomography geology is broken in drilling process, crept into so as to efficiently solve
There is the problems such as excessive velocities in sediment after the problems such as collapse hole that occurs in journey, bit freezing and pore-forming borehole cleaning；(5) pile foundation filling concrete
And steel pile casting is extracted.Crept into after stake holes to projected depth, by technical requirements, carry out borehole cleaning, lay pile foundation steel bar cage, perfusion is mixed
Solidifying soil.During filling concrete, casing Transducers Embedded in Concrete length is calculated according to concrete perfusion quantity and steel pile casting diameter
Degree, Follow-up type casing merogenesis is ejected with hydraulic push bench when casing Transducers Embedded in Concrete length meets to require, in principle with list
Secondary push pipe length is that single-unit casing length is advisable；(6) casing maintenance and casing quantity configuration.To ensure that rotary drilling rig can continuously be made
Industry, plant equipment utilization rate is improved, according to rotary drilling rig rate of penetration and pile foundation filling concrete, pipe-pulling speed reasonable disposition
1.5 ~ 2 sets of Follow-up type casings, to meet that rotary drilling rig can start the brill of next pile base pile hole in a pile base in perfusion
Enter；(7) construction that (3)-(6) continue to complete remaining bridge pile foundation is repeated.
Claims (9)
1. a kind of full casing follow-up step construction method of bridge pile foundation, it is characterised in that comprise the following steps：(1) casing design with
Make：Using multiple casings, can mutually be dismantled between each casing；(2) first section casing installation：By head section casings and drill bit of drilling machine
It is connected；(3) casing Follow-up type bored pile：It is vertical to bore by drill bit of drilling machine center align piles position according to the stake position after setting-out
Enter, the face on the basis of the ground of stake position, when the upper surface of casing is higher by reference plane H, connect next casing, until it is deep to reach design
Degree；(4) pile foundation filling concrete and casing are extracted：Crept into after stake holes to projected depth, lay pile foundation steel bar cage, irrigate coagulation
Soil, during filling concrete, casing Transducers Embedded in Concrete length is calculated according to concrete perfusion quantity and casing diameter, treated
When casing Transducers Embedded in Concrete length meets to require, casing is extracted.
2. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 1, it is characterised in that the casing is adopted
Rolled and formed with 30mm steel plates, be 2-3m per segmental height.
3. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 1, it is characterised in that the casing
Top is provided with first connecting portion, and the bottom of all casings in addition to the casing of head sections is provided with second connecting portion, phase
It is connected between adjacent casing by the first connecting portion of previous casing with the second connecting portion of latter casing.
A kind of 4. full casing follow-up step construction method of bridge pile foundation according to claim 1, it is characterised in that the casing bag
The two panels casing piece being hinged is included, the one end of casing piece away from pin joint is connected by buckling piece described in two panels.
5. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 3, it is characterised in that described first connects
The internal diameter of socket part is less than the internal diameter of the second connecting portion, and the first screwed hole is provided with the first connecting portion, and second connects
The second screwed hole is provided with socket part, is bolted between first connecting portion and second connecting portion.
6. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 3, it is characterised in that described first connects
Hanging hole is provided with socket part, is hinged with hook on the outside of the second connecting portion, the first connecting portion and second connecting portion it
Between be attached by linking up with hanging hole.
7. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 1, it is characterised in that in pile-casting making
After the completion of, before use, carry out casing preassembling.
8. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 1, it is characterised in that also include to shield
The maintenance of cylinder and casing quantity configuration.
9. the full casing follow-up step construction method of a kind of bridge pile foundation according to claim 1, it is characterised in that the casing
Vertical fin or spiral ridge are provided with outer surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710661866.0A CN107476301A (en) | 2017-08-04 | 2017-08-04 | A kind of full casing follow-up step construction method of bridge pile foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710661866.0A CN107476301A (en) | 2017-08-04 | 2017-08-04 | A kind of full casing follow-up step construction method of bridge pile foundation |
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| CN107476301A true CN107476301A (en) | 2017-12-15 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797581A (en) * | 2018-08-07 | 2018-11-13 | 中国十七冶集团有限公司 | A kind of bridge pile foundation churning driven construction assembled steel pile casting structure and its installation method |
| CN108951614A (en) * | 2018-08-02 | 2018-12-07 | 长江勘测规划设计研究有限责任公司 | A kind of spigot-and-socket drilled pile steel pile casting and its construction method |
| CN109519175A (en) * | 2018-12-30 | 2019-03-26 | 浙江工业大学 | A kind of rectangular top pipe and its construction method |
| CN110067508A (en) * | 2019-03-26 | 2019-07-30 | 陕西华山路桥集团有限公司 | A kind of novel spiral-digging pore method for boulder bed |
| CN110952558A (en) * | 2019-12-13 | 2020-04-03 | 中建三局第一建设工程有限责任公司 | Automatic embedding device and system for pile foundation casing |
| CN111021413A (en) * | 2019-12-31 | 2020-04-17 | 青岛时代建筑设计有限公司 | Reverse construction method based on assembly type concept |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
| CN112177555A (en) * | 2020-10-22 | 2021-01-05 | 中国能源建设集团陕西省电力设计院有限公司 | Detachable wellhead reinforcing and protecting device |
| CN112554783A (en) * | 2020-11-12 | 2021-03-26 | 北京建工土木工程有限公司 | Dry hole-forming drilling machine for construction in underground narrow space and construction method |
| CN113718798A (en) * | 2021-10-09 | 2021-11-30 | 中建八局第二建设有限公司 | Construction method for layered construction pore-forming of rock-socketed secant pile in riprap region near sea |
| CN115247419A (en) * | 2021-04-28 | 2022-10-28 | 广州市建筑科学研究院有限公司 | Full-length steel casing concrete cast-in-place pile construction equipment and method without slurry discharge |
| CN112177555B (en) * | 2020-10-22 | 2024-06-11 | 中国能源建设集团陕西省电力设计院有限公司 | Detachable wellhead reinforcing and protecting device |
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| CN108951614A (en) * | 2018-08-02 | 2018-12-07 | 长江勘测规划设计研究有限责任公司 | A kind of spigot-and-socket drilled pile steel pile casting and its construction method |
| CN108951614B (en) * | 2018-08-02 | 2023-12-01 | 长江勘测规划设计研究有限责任公司 | Socket type bored pile steel pile casing and construction method thereof |
| CN108797581A (en) * | 2018-08-07 | 2018-11-13 | 中国十七冶集团有限公司 | A kind of bridge pile foundation churning driven construction assembled steel pile casting structure and its installation method |
| CN109519175A (en) * | 2018-12-30 | 2019-03-26 | 浙江工业大学 | A kind of rectangular top pipe and its construction method |
| CN110067508A (en) * | 2019-03-26 | 2019-07-30 | 陕西华山路桥集团有限公司 | A kind of novel spiral-digging pore method for boulder bed |
| CN110952558A (en) * | 2019-12-13 | 2020-04-03 | 中建三局第一建设工程有限责任公司 | Automatic embedding device and system for pile foundation casing |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
| CN111021413B (en) * | 2019-12-31 | 2021-05-28 | 青岛时代建筑设计有限公司 | Reverse construction method based on assembly type concept |
| CN111021413A (en) * | 2019-12-31 | 2020-04-17 | 青岛时代建筑设计有限公司 | Reverse construction method based on assembly type concept |
| CN112177555A (en) * | 2020-10-22 | 2021-01-05 | 中国能源建设集团陕西省电力设计院有限公司 | Detachable wellhead reinforcing and protecting device |
| CN112177555B (en) * | 2020-10-22 | 2024-06-11 | 中国能源建设集团陕西省电力设计院有限公司 | Detachable wellhead reinforcing and protecting device |
| CN112554783A (en) * | 2020-11-12 | 2021-03-26 | 北京建工土木工程有限公司 | Dry hole-forming drilling machine for construction in underground narrow space and construction method |
| CN115247419A (en) * | 2021-04-28 | 2022-10-28 | 广州市建筑科学研究院有限公司 | Full-length steel casing concrete cast-in-place pile construction equipment and method without slurry discharge |
| CN113718798A (en) * | 2021-10-09 | 2021-11-30 | 中建八局第二建设有限公司 | Construction method for layered construction pore-forming of rock-socketed secant pile in riprap region near sea |
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