CN106120714A - A kind of device improving hollow pile bearing capacity and using method thereof - Google Patents
A kind of device improving hollow pile bearing capacity and using method thereof Download PDFInfo
- Publication number
- CN106120714A CN106120714A CN201610697867.6A CN201610697867A CN106120714A CN 106120714 A CN106120714 A CN 106120714A CN 201610697867 A CN201610697867 A CN 201610697867A CN 106120714 A CN106120714 A CN 106120714A
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- Prior art keywords
- slip casting
- hollow pile
- drilling rod
- slurry
- bearing capacity
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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.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007569 slipcasting Methods 0.000 claims abstract description 73
- 238000005553 drilling Methods 0.000 claims abstract description 50
- 238000007582 slurry-cast process Methods 0.000 claims abstract description 40
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 210000002784 stomach Anatomy 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000000246 remedial effect Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 238000003466 welding 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
- E02D5/22—Piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0038—Production methods using an auger, i.e. continuous flight type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to geotechnical engineering construction field, a kind of device improving hollow pile bearing capacity and using method thereof, it is characterized in that: described device at least includes grouting pump, Grouting Pipe, slip casting drilling rod and slurry casting machine, injected hole is offered on wherein said slurry casting machine, described slurry casting machine is connected to a fixed with one end of described slip casting drilling rod and internal connection constitutes slip casting passage, the other end of described slip casting drilling rod is connected with described grouting pump by described Grouting Pipe, the external slurry pool of described grouting pump.The invention have the advantage that and can not only be used for a kind of remedial measure improving hollow pile bearing capacity, again can be as the common process of a kind of hollow pile grouting behind shaft or drift lining；Easy construction, practical, raising resource utilization.
Description
Technical field
The present invention relates to geotechnical engineering construction field, a kind of device improving hollow pile bearing capacity and user thereof
Method.
Background technology
Hollow pile includes precast hollow square pile, precast hollow pile tube, steel pipe etc., it have bearing capacity high, with short production cycle,
Save the advantages such as material.Its production technology advanced person's science and maturation, have a wide range of applications in construction market.Real in engineering
In trampling, choose the reasons such as unreasonable, supporting course big rise and fall, pile for prestressed pipe soil compaction effect due to exploration report parameter and cause work
Journey pile bearing capacity is not enough.Separately due to stratum reason, particularly soft clay area, the bearing capacity that single pile provides is limited, for top lotus
Carry bigger building need to arrange substantial amounts of stake to meet requirement for bearing capacity, and now strong much smaller than pile body of bearing capacity of pile foundation
Degree, causes the wasting of resources.
Improving bearing capacity of pile foundation currently mainly technique is pile-end post-grouting, and this technique is exactly bottom utilizing works stake and side
The Grouting Pipe of pre-plugged, with high-pressure pump carries out high-pressure slip-casting in some skies becoming after (sink) stake, serosity by infiltration, cleave,
Fill, the effect such as compacted is combined with pile body surrounding soil, plays and improves the effect such as bearing capacity, minimizing sedimentation.Post Grouting Technique exists
Cast-in-situ bored pile uses existing more ripe technology, but hollow pile is made post jacking and processes, it is common practice that built-in slip casting pipe,
Not only use less at present, and have the drawback that 1, slurry casting machine and stake end are almost at same absolute altitude, it is impossible at stake end absolute altitude
Following slip casting, it is impossible to be effectively improved the bearing capacity of hollow pile.2, pre-buried Grouting Pipe is easily blocked by the soil body in pile driving process,
And be difficult to remedy.3, during merogenesis construction pile foundation, the connection of Grouting Pipe is extremely difficult.
Summary of the invention
It is an object of the invention to according to above-mentioned the deficiencies in the prior art, it is provided that a kind of device improving hollow pile bearing capacity
And using method, after pile sinking, pierce below hollow pile end, hollow pile end is carried out slip casting, thus improves hollow pile
Bearing capacity.
The object of the invention realizes being completed by techniques below scheme:
A kind of device improving hollow pile bearing capacity, it is characterised in that: described device at least includes grouting pump, Grouting Pipe, slip casting
Drilling rod and slurry casting machine, wherein said slurry casting machine offers injected hole, and described slurry casting machine is connected with one end of described slip casting drilling rod
Connecing fixing and internal connection and constitute slip casting passage, the other end of described slip casting drilling rod is by described Grouting Pipe and described grouting pump phase
Connect, the external slurry pool of described grouting pump.
Described slurry casting machine is a metal tube, and the front end of described metal tube is drill bit, and end is non-return valve, described metal tube
End is connected to a fixed with described slip casting drilling rod, and the external stability of described metal tube is provided with screw blade, described injected hole
It is opened on the described metal tube between described blade.
Described injected hole is blocked by occluding body.
Described slip casting drilling rod is spliced by some joint seamless steel pipes, constitutes detachable company between described seamless steel pipe
Connect fixing or constitute be welded to connect fixing；Constitute detachable connection between described slip casting drilling rod and described slurry casting machine to fix.
A kind of using method of the device relating to above-mentioned raising hollow pile bearing capacity, it is characterised in that: described using method
At least comprise the following steps:
Construction hollow pile is to designed elevation, and excavation pit is to cheating the end；
By described slip casting drilling rod described slurry casting machine pierced in the empty stomach of described hollow pile, until at the bottom of described slurry casting machine pierces
Absolute altitude identified below；
Start described grouting pump, carry out slip casting by described Grouting Pipe.
Before slip casting, in the tip cavity of described hollow pile, pour element concrete block.
Stop slip casting after reaching grouting amount or grouting pressure balance, reversely rotate described slip casting drilling rod and make itself and described note
Slurry device is separated, and reclaims described slip casting drilling rod.
Described construction method can be constructed as remedial measure after Construction of Engineering Pile completes again.
Described slurry casting machine and stake end, almost at same absolute altitude, can realize the slip casting of below an end absolute altitude, now due to permissible
Below penetration pile end, to the process of sediment of the hole bottom more effectively.
Due to slurry casting machine can be with injection to stake end below, overcome serosity seepage distance in cohesive soil and sandy soil too short
Defect, can be greatly increased the scope that an end is reinforced.
The invention have the advantage that and can not only be used for a kind of remedial measure improving hollow pile bearing capacity, again can be as a kind of empty
The common process of heart stake grouting behind shaft or drift lining；Easy construction, practical, raising resource utilization.
Accompanying drawing explanation
Fig. 1 is the structural representation of slurry casting machine in the present invention；
Fig. 2 is the structural representation of single-unit slip casting drilling rod in the present invention；
Fig. 3 is the operating diagram of the present invention.
Detailed description of the invention
Feature of present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, in order to
Understanding in technical staff of the same trade:
As Figure 1-3, in figure, labelling 1-13 is expressed as: round metal tube 1, injected hole 2, screw blade 3, drill bit 4,
Non-return valve 5, single-unit slip casting drilling rod 6, joint 7, slurry casting machine 8, hollow pile 9, Grouting Pipe 10, grouting pump 11, slurry pool 12, hollow pile
Occluding body 13 on an empty stomach.
Embodiment: as it is shown in figure 1, the slurry casting machine in the present embodiment includes that round metal tube 1, drill bit 4 are fixedly installed on circle
The front end of shape metal tube 1, non-return valve 5 is fixedly installed on the rear end of round metal tube 1, and wherein drill bit 4 is tapered, its effect be for
Being easy among the soil body that slurry casting machine pierces below at the bottom of hollow pile stake, non-return valve 5 is then to prevent from starching during slip casting
Liquid adverse current.Be fixedly installed screw blade 3 in the periphery of round metal tube 1, screw blade 3 is along the pipe of round metal tube 1
Body is axially evenly arranged, so that round metal tube 1 forms helical form drill bit, is easy to further pierce at the bottom of hollow pile stake slurry casting machine
Among the following soil body.Offering some injected holes 2 on round metal tube 1, serosity injects from the non-return valve 5 on top, from
Injected hole 2 extrudes.Some injected holes 2 are evenly arranged between blade and the blade of screw blade 3, it is ensured that slip casting uniform
Property.In injected hole 2, be provided with the rubber stopper as occluding body or sheet rubber (not shown), with before slip casting to slip casting
Hole 2 blocks, it is to avoid the inside that during the piercing of slurry casting machine, the soil body enters into round metal tube 1 by injected hole 2 is made
Become slip casting passage and the blocking of injected hole 2.
As in figure 2 it is shown, single-unit slip casting drilling rod 6 is respectively arranged with joint 7 at its two ends, two single-unit slip casting drilling rods 6 it
Between can connect fixing being integrally formed by the adaptive of joint 7, thus increase the length of slip casting drilling rod, the entire length of slip casting drilling rod
It is satisfied with and makes slurry casting machine can pierce the requirement of the following soil body at the bottom of hollow pile stake.
As it is shown on figure 3, slurry casting machine 8 is connected to a fixed with the slip casting drilling rod being spliced to form by some single-unit slip casting drilling rods 6,
And both pores are connected to form slip casting passage.Slip casting drilling rod is connected with grouting pump 11 by a Grouting Pipe 10, note
Stock pump 11 connects slurry pool 12 by another root Grouting Pipe 10；Storing serosity in slurry pool 12, serosity is by grouting pump 11
Drive and be pressed out to sky via in Grouting Pipe 10, slip casting drilling rod to slurry casting machine 8, and the injected hole 2 offered from slurry casting machine 8 successively
Among the soil body at the bottom of heart stake stake.
Device in the present embodiment in use, has following steps:
The first step: construction hollow pile 9 to designed elevation, excavation pit is to cheating the end.
Second step: after being closed with rubber stopper (sheet) by the injected hole 2 on slurry casting machine 8, by the single-unit note of slurry casting machine 8 with first joint
Slurry drilling rod 6 is connected to a fixed, and installs non-return valve 5 in both junctions.
3rd step: slurry casting machine 8 is pierced in the empty stomach of hollow pile 9 by the single-unit slip casting drilling rod 6 saved by head, saves at head afterwards
Single-unit slip casting drilling rod 6 rear be sequentially connected with some single-unit slip casting drilling rods 6 by joint 7, and by some single-unit slip casting drilling rods 6
Continue to make slurry casting machine 8 to pierce the empty stomach of hollow pile 9 until slurry casting machine 8 pierces absolute altitude identified below at the bottom of the stake of hollow pile 9.
4th step: pour element concrete in hollow pile 9 tip cavity in the range of 1-1.5m as hollow pile on an empty stomach occluding body 13,
Blocking the stake end of hollow pile 9, element concrete, for the cavity of closed hollow stake, prevents serosity excessive to ensure slip casting effect.
5th step: grouting pump 11 connects slurry pool 12 and single-unit slip casting drilling rod 6 end respectively by slip casting flexible pipe 10；Check
Each node, confirms that connecting the firm rear grouting pump 11 that passes through carries out slip casting.Serosity enters slip casting by some single-unit slip casting drilling rods 6
Device 8, and the injected hole 2 offered from slurry casting machine 8 is pressed out among the soil body below at the bottom of hollow pile 9, so, serosity
Be combined with pile peripheral earth by effects such as going deep into, cleave, fill, be compacted, thus improve the bearing capacity of hollow pile 9, the most also may be used
To reduce its sedimentation.
6th step: stop slip casting after reaching grouting amount or grouting pressure balance, reversely rotates slip casting drilling rod 6 and makes itself and note
Slurry device 8 departs from, and reclaims slip casting drilling rod 6.
The present embodiment is in the specific implementation: can be by both between slurry casting machine 8 and coupled single-unit slip casting drilling rod 6
Joint be threaded and make both constitute detachable connection by threaded engagement to fix, so, when by slurry casting machine 8
After piercing the degree of depth identified below at the bottom of hollow pile stake, single-unit slip casting drilling rod 6 can be driven to reversely rotate, so that itself and slurry casting machine 8 phase
Depart from, it is achieved the recovery of slip casting drilling rod.
In order to improve the intensity of slip casting drilling rod, it is to avoid the junction of the most adjacent two single-unit slip casting drilling rods 6 occurs
Fracture, can directly be formed to be connected by welding between single-unit slip casting drilling rod 6 with single-unit slip casting drilling rod 6 and fix, thus improve slip casting
The intensity of drilling rod.Single-unit slip casting drilling rod 6 can select seamless steel pipe.
Hollow pile 9 can be prefabricated concrete pipe pile, precast concrete square pile, steel-pipe pile etc., all may utilize the present embodiment
In device and using method improve bearing capacity.
Although design and the embodiment of the object of the invention is elaborated by above example referring to the drawings, but this
Field those of ordinary skill will be consequently realised that, under the precondition limiting scope without departing from claim, and still can be right
The present invention makes various modifications and variations, such as: the shape of single-unit slip casting drilling rod 6, size；The type of drive of slip casting, each device
Layout etc., therefore repeat the most one by one at this.
Claims (7)
1. the device improving hollow pile bearing capacity, it is characterised in that: described device at least includes grouting pump, Grouting Pipe, note
Slurry drilling rod and slurry casting machine, wherein said slurry casting machine offers injected hole, one end phase of described slurry casting machine and described slip casting drilling rod
Connecting fixing and internal connection and constitute slip casting passage, the other end of described slip casting drilling rod is by described Grouting Pipe and described grouting pump
It is connected, the external slurry pool of described grouting pump.
A kind of device improving hollow pile bearing capacity the most according to claim 1, it is characterised in that: described slurry casting machine is one
Metal tube, the front end of described metal tube is drill bit, and end is non-return valve, and the end of described metal tube is connected with described slip casting drilling rod
Connecing fixing, the external stability of described metal tube is provided with screw blade, and described injected hole is opened between described blade
Described metal tube on.
A kind of device improving hollow pile bearing capacity the most according to claim 2, it is characterised in that: described injected hole passes through
Occluding body blocks.
A kind of device improving hollow pile bearing capacity the most according to claim 1, it is characterised in that: described slip casting drilling rod by
Some joint seamless steel pipes are spliced, constitute between described seamless steel pipe detachable connection fix or constitute be welded to connect solid
Fixed；Constitute detachable connection between described slip casting drilling rod and described slurry casting machine to fix.
5. relating to a using method for the device of arbitrary described raising hollow pile bearing capacity in claim 1-4, its feature exists
In: described using method at least comprises the following steps:
Construction hollow pile is to designed elevation, and excavation pit is to cheating the end；
By described slip casting drilling rod described slurry casting machine pierced in the empty stomach of described hollow pile, until at the bottom of described slurry casting machine pierces
Absolute altitude identified below；
Start described grouting pump, carry out slip casting by described Grouting Pipe.
The using method of a kind of device improving hollow pile bearing capacity the most according to claim 5, it is characterised in that: at note
Before slurry, in the tip cavity of described hollow pile, pour element concrete block.
The using method of a kind of device improving hollow pile bearing capacity the most according to claim 6, it is characterised in that: reach
Stop slip casting after grouting amount or grouting pressure balance, reversely rotate described slip casting drilling rod and make it be separated with described slurry casting machine,
Reclaim described slip casting drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697867.6A CN106120714A (en) | 2016-08-22 | 2016-08-22 | A kind of device improving hollow pile bearing capacity and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697867.6A CN106120714A (en) | 2016-08-22 | 2016-08-22 | A kind of device improving hollow pile bearing capacity and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106120714A true CN106120714A (en) | 2016-11-16 |
Family
ID=57279648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610697867.6A Pending CN106120714A (en) | 2016-08-22 | 2016-08-22 | A kind of device improving hollow pile bearing capacity and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656643A (en) * | 2019-10-14 | 2020-01-07 | 山东大学 | Grouting type rotating steel pipe pile and construction method |
| CN112832235A (en) * | 2021-01-08 | 2021-05-25 | 翟宇思 | Construction method and construction device for precast pile post-grouting |
| WO2023198824A1 (en) * | 2022-04-13 | 2023-10-19 | Itrec B.V. | Method for installation of an offshore wind turbine foundation monopile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143137A (en) * | 1995-01-19 | 1997-02-19 | 叶长生 | Injecting method for steel rod concrete prefabricated pile end |
| CN2934354Y (en) * | 2006-07-25 | 2007-08-15 | 翟向滨 | Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake |
| CN201268848Y (en) * | 2008-08-26 | 2009-07-08 | 江苏南通二建集团有限公司 | Novel grouting device |
| CN201292528Y (en) * | 2008-11-06 | 2009-08-19 | 南京建工集团有限公司 | Grouting machine |
| JP2011026911A (en) * | 2009-07-29 | 2011-02-10 | Kfc Ltd | Construction method of rotary penetrating pile |
| CN102587361A (en) * | 2012-03-27 | 2012-07-18 | 河海大学 | Polymer material grouted wedge precast pile technique |
| CN104234055A (en) * | 2014-09-24 | 2014-12-24 | 顾孙平 | Precast pile post-grouting device and precast pile post-grouting process |
| CN204311454U (en) * | 2014-12-16 | 2015-05-06 | 中铁建大桥工程局集团第五工程有限公司 | A kind of pile end concrete placing device for foundation construction |
| CN204491617U (en) * | 2015-01-19 | 2015-07-22 | 赵连平 | A kind of static pressure or hammering concrete precast pipe pile pile bottom post-grouting device |
| CN205975582U (en) * | 2016-08-22 | 2017-02-22 | 上海岩土工程勘察设计研究院有限公司 | Improve device of hollow pile bearing capacity |
-
2016
- 2016-08-22 CN CN201610697867.6A patent/CN106120714A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143137A (en) * | 1995-01-19 | 1997-02-19 | 叶长生 | Injecting method for steel rod concrete prefabricated pile end |
| CN2934354Y (en) * | 2006-07-25 | 2007-08-15 | 翟向滨 | Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake |
| CN201268848Y (en) * | 2008-08-26 | 2009-07-08 | 江苏南通二建集团有限公司 | Novel grouting device |
| CN201292528Y (en) * | 2008-11-06 | 2009-08-19 | 南京建工集团有限公司 | Grouting machine |
| JP2011026911A (en) * | 2009-07-29 | 2011-02-10 | Kfc Ltd | Construction method of rotary penetrating pile |
| CN102587361A (en) * | 2012-03-27 | 2012-07-18 | 河海大学 | Polymer material grouted wedge precast pile technique |
| CN104234055A (en) * | 2014-09-24 | 2014-12-24 | 顾孙平 | Precast pile post-grouting device and precast pile post-grouting process |
| CN204311454U (en) * | 2014-12-16 | 2015-05-06 | 中铁建大桥工程局集团第五工程有限公司 | A kind of pile end concrete placing device for foundation construction |
| CN204491617U (en) * | 2015-01-19 | 2015-07-22 | 赵连平 | A kind of static pressure or hammering concrete precast pipe pile pile bottom post-grouting device |
| CN205975582U (en) * | 2016-08-22 | 2017-02-22 | 上海岩土工程勘察设计研究院有限公司 | Improve device of hollow pile bearing capacity |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656643A (en) * | 2019-10-14 | 2020-01-07 | 山东大学 | Grouting type rotating steel pipe pile and construction method |
| CN112832235A (en) * | 2021-01-08 | 2021-05-25 | 翟宇思 | Construction method and construction device for precast pile post-grouting |
| WO2023198824A1 (en) * | 2022-04-13 | 2023-10-19 | Itrec B.V. | Method for installation of an offshore wind turbine foundation monopile |
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Application publication date: 20161116 |