CN109695264B - Suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and construction method thereof - Google Patents
Suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and construction method thereof Download PDFInfo
- Publication number
- CN109695264B CN109695264B CN201910055464.5A CN201910055464A CN109695264B CN 109695264 B CN109695264 B CN 109695264B CN 201910055464 A CN201910055464 A CN 201910055464A CN 109695264 B CN109695264 B CN 109695264B
- Authority
- CN
- China
- Prior art keywords
- sinking
- cylinder
- sinking cylinder
- suction type
- type cylindrical
- Prior art date
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/24—Foundations constructed by making use of diving-bells
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/17—Geometrical or physical properties including an electric conductive element
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to the technical field of ocean structure foundations, and relates to a suction type cylindrical foundation sinking cylinder rectifying and reinforcing device. The suction type cylindrical foundation sinking cylinder is used as a cathode, a copper pipe or a steel pipe is additionally used as an anode, electroosmosis is formed around the wall of the sinking cylinder, the contact surface friction between the wall of the sinking cylinder and deep sea soil in the process of sinking cylinder penetration is weakened, and the penetration efficiency is improved; when the suction type cylindrical foundation is inclined, the correction effect is achieved through electroosmosis at the corresponding position; and finally, strengthening the soil body strength in the sinking cylinder and the cylinder wall by a chemical electroosmosis method, and improving the integral pulling-resistant bearing capacity of the suction type cylindrical foundation. The technical scheme is convenient and quick to construct and good in economical efficiency.
Description
Technical Field
The invention belongs to the technical field of ocean structure foundations, and particularly relates to a suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and a construction method thereof.
Background
Suction type cylindrical foundations are widely applied to deep sea oil extraction platforms and ocean floating structures as an excellent ocean foundation form. Compared with the traditional pile foundation, the suction type cylindrical foundation has the advantages of simplicity and convenience in installation, low cost and high construction efficiency.
The installation penetration process of the suction type cylindrical foundation is divided into two steps: the first step is that the suction type cylindrical foundation sinks under the action of dead weight to reach a designated depth; and the second step is to pump out the slurry in the sinking cylinder, form negative pressure in the sinking cylinder, and sink the suction type cylindrical foundation to the designed depth under the action of the negative pressure. Due to the difference of ocean geological conditions, the surface of a seabed soil body is possibly uneven, and the soil body properties of different areas or depths are different, and the suction type cylindrical foundation is possibly inclined in the processes of sinking and penetrating under the action of dead weight and sinking and penetrating under the action of negative pressure; the foundation may also tilt during installation due to horizontal wave loading or tug. Once the suction type cylindrical foundation is inclined, the inclination angle of the foundation is larger and larger in the sinking and penetrating process due to the deviation of the gravity center of the foundation, and the installation quality of the foundation is seriously affected. Therefore, timely correcting the inclination of the suction type cylindrical foundation is an important means for controlling the installation quality of the suction type cylindrical foundation.
The suction type cylindrical foundation provides bearing capacity for the oil extraction platform and the floating structure at the upper part by means of interaction force between the cylinder wall and the deep sea soil body. The interaction force between the suction type cylindrical foundation cylinder wall and the deep sea soil body can be improved by increasing the friction coefficient and the non-drainage strength of the soil body around the foundation. Relevant scholars propose to strengthen suction type cylindrical foundations by means of grouting; however, the applicability problem of the traditional grouting material in the deep sea soil body is yet to be further verified, the suction type cylindrical foundation after grouting has the problem of difficult recycling, and resource waste is caused to a certain extent; therefore, it is important to find a suction type cylindrical foundation reinforcing device with better economy and more feasible technology and a construction method thereof.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a device for correcting the deviation of a suction type cylindrical foundation by utilizing an electroosmosis method, so that the sinking cylinder meets the requirement of verticality, and the installation quality of the sinking cylinder is effectively improved; after the sinking cylinder is penetrated, soil bodies in the sinking cylinder and the cylinder wall are reinforced by a chemical electroosmosis method, so that the integral anti-pulling bearing capacity of the suction type cylindrical foundation is effectively improved, and the problem of difficult recycling of the foundation is solved.
The technical scheme of the invention is as follows:
a suction type cylindrical foundation sinking cylinder rectifying and reinforcing device takes a suction type cylindrical foundation sinking cylinder as a cathode, an anode is arranged in the sinking cylinder, a direct current power supply is connected to form an electroosmosis field, soil water in the sinking cylinder flows towards the outside of the sinking cylinder, the flow of the soil water weakens the friction between the wall of the sinking cylinder and the soil, and the sinking through efficiency is improved. When the sinking cylinder is inclined, a power switch at a shallow sinking position is turned on, and the position is further sinking under the electroosmosis effect to achieve the effect of rectifying deviation. After the sinking is completed, cutting off the power supply of the sinking cylinder, and setting half of the electrodes arranged in the sinking cylinder as cathodes and half as anodes; chemical solution is injected into the electrode, electroosmosis is formed under the action of current, soil in the sinking cylinder is reinforced, and the integral anti-pulling bearing capacity of the suction type cylindrical foundation is improved.
A suction type cylindrical foundation sinking cylinder rectifying and reinforcing device has a main structure of a sinking cylinder; the sinking cylinder comprises a cylinder cover 3 and a cylinder body, and the cylinder cover is provided with a drainage valve 4; 4-6 copper pipes or steel pipes 6 are uniformly arranged in the sinking cylinder, 6-8 grouting holes 6-2 are uniformly arranged on each copper pipe or steel pipe 6, the grouting holes 6-2 are wrapped by elastic rubber rings, and the copper pipes or steel pipes 6 are isolated from the sinking cylinder by insulating materials 5; the sinking cylinder is connected with the upper floating structure through a steel cable 1-1 to provide bearing capacity for the upper floating structure; the copper pipe or the steel pipe 6 is connected with a superstructure direct current power supply through a cable 1-2 to form electroosmosis and can be converted by an electrode, so that the purposes of rectifying and reinforcing the suction type cylindrical foundation sinking cylinder are achieved; the steel cable 1-1 and the electric cable 1-2 are wrapped together by a sleeve 1-3 having a seawater erosion preventing function.
A construction method of a suction type cylindrical foundation sinking cylinder correction and reinforcement device comprises the following steps:
(1) Carrying a sinking cylinder of a suction type cylindrical foundation containing a copper pipe or steel pipe 6 and an insulating material 5 to a preset sinking and penetrating construction position;
(2) Setting the sinking cylinder as a cathode, setting the copper pipe or the steel pipe 6 as an anode, and connecting the copper pipe or the steel pipe 6 and the cable 1-2 of the sinking cylinder with the anode and the cathode of a power supply respectively;
(3) Sinking and penetrating construction is carried out on the sinking cylinder under the action of dead weight;
(4) The drainage valve 4 is connected with a water suction pump, the slurry in the sinking cylinder is pumped out, negative pressure is formed in the sinking cylinder, and the sinking cylinder is further penetrated under the action of the negative pressure;
(5) Opening a direct current power switch on one side of the sinking barrel, which is not enough in penetration depth, to form electroosmosis, and further sinking the sinking barrel under the action of the electroosmosis until the requirements of the designed depth and the gradient are met;
(6) Cutting off the power supply of the sinking cylinder after the sinking cylinder is penetrated, and connecting one half of a cable 1-2 connected with the copper pipe or the steel pipe with the positive electrode of the power supply and the other half with the negative electrode of the power supply;
(7) Injecting chemical slurry into the copper pipe or the steel pipe 6, and penetrating the chemical slurry into a deep sea soil body through grouting holes 7 on the copper pipe or the steel pipe 6 under the action of grouting pressure;
(8) And the power switch is turned on to form an electroosmosis net in the sinking cylinder, soil bodies in the sinking cylinder and the cylinder wall are reinforced under the electroosmosis effect, and the integral pulling-resistant bearing capacity of the suction type cylindrical foundation is improved.
The invention has the beneficial effects that:
(1) The suction type cylindrical foundation sinking cylinder is used as a cathode, a copper pipe (or a steel pipe) is additionally used as an anode, and electroosmosis is formed around the wall of the sinking cylinder, so that the contact surface friction between the wall of the sinking cylinder and a deep sea soil body in the sinking cylinder penetrating process is weakened, and the penetrating efficiency is effectively improved.
(2) When the foundation is inclined, the electroosmosis is carried out at the corresponding position, so that the sinking cylinder direction is corrected.
(3) After the sinking cylinder is penetrated, soil bodies in the sinking cylinder and the cylinder wall are reinforced by chemical electroosmosis, so that the integral anti-pulling bearing capacity of the suction type cylindrical foundation is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 (a) is a top view of a sleeve containing steel and electrical cables;
FIG. 2 (b) is a front view of a sleeve containing steel and electrical cables;
FIG. 3 is a cross-sectional view A-A of FIG. 1.
In the figure: 1 a sleeve containing a steel cable and an electric cable; 1-1 steel cable; 1-2 cable wires; 1-3 sleeves; 2, the wall of the cylinder; 3, a cylinder cover; 4, a water discharge valve; 5 insulating material; 6 copper pipe or steel pipe; 6-1 insulating leather sheath; 6-2 grouting holes; 7 soil surface in the cylinder.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples. The protective scope of the invention is not limited to the description of the embodiment.
As shown in fig. 1-3, a suction type cylindrical foundation sinking cylinder rectifying and reinforcing device comprises a cylinder cover 3 and a cylinder body 2; the sinking cylinder in the embodiment is a steel cylinder body with the diameter of 4m, the height of 4.5m and the wall thickness of 2 cm; the cylinder cover 3 is welded on the cylinder body 2 to form an inverted cylinder with a sealed upper end and an open lower end; a drain valve 4 is arranged on the cylinder cover 3; the water discharge valve 4 is connected with a water suction pump. In the embodiment, 8 copper pipes or steel pipes 6 with the diameter of 5cm and the length the same as the height of the inner cylinder wall are uniformly arranged inside the sinking cylinder; a plurality of grouting holes with the diameter of 1cm are uniformly arranged on the copper pipe or the steel pipe 6; the copper pipe or the steel pipe 6 is isolated from the sinking cylinder by a polyethylene insulating material 5; the copper pipe or the steel pipe 6 and the sinking cylinder are connected with a power supply in the upper structure through a cable 1-2. The cable 1-2 is wrapped with the steel cable 1-1 and the sleeve 1-3 which can prevent the corrosion of seawater and the like, and is connected with the upper structure together.
A construction method of a suction type cylindrical foundation sinking cylinder correction and reinforcement device comprises the following steps:
(1) Towing and lowering a sinking cylinder of the suction type cylindrical foundation to a preset sinking position by using a tugboat;
(2) Connecting a sinking cylinder steel cable with a negative electrode of a power supply, and connecting a copper pipe or a steel pipe 6 cable with an anode of the power supply;
(3) Sinking the sinking cylinder to a specified depth under the action of dead weight;
(4) If the sinking and penetrating of the sinking cylinder is finished under the action of dead weight, a power switch on one side of the sinking cylinder, which is not enough in penetrating depth, is turned on to form an electroosmosis field, soil water in the sinking cylinder flows out of the sinking cylinder, the flowing of the soil water weakens the friction resistance between the sinking cylinder and the soil, the sinking cylinder is further penetrated under the action of electroosmosis until reaching the designated depth, and the effect of rectifying the deviation of the sinking cylinder is achieved;
(5) The water draining valve 4 is connected with a water suction pump, slurry in the sinking cylinder is pumped out, negative pressure is formed in the sinking cylinder, and the sinking cylinder sinks under the action of the negative pressure to reach the designed depth;
(6) Checking whether the sinking barrel tilts again, if tilting occurs again, turning on a power switch on the side of the sinking barrel, which is not enough to penetrate into the depth, sinking the sinking barrel to the designed depth under the electroosmosis action, and finishing correction;
(7) Cutting off the power supply of the sinking cylinder after the sinking cylinder is completely penetrated, and injecting chemical slurry into the copper pipe or the steel pipe 6 through the guide pipe; wherein, half of copper pipes or steel pipes 6 in the embodiment are internally injected with CaCl 2 Solution, half copper tube or steel tube 6 is injected with Na 2 SiO 3 A solution; the chemical solution is permeated outwards into the soil body in the sinking cylinder through the grouting holes 6-2 on the copper pipe or the steel pipe 6;
(8) Will be injected with CaCl 2 The cable of the copper pipe or steel pipe 6 of the solution is connected with the positive electrode of the power supply, and Na is injected 2 SiO 3 The cable of the copper pipe or the steel pipe 6 of the solution is connected with the negative electrode of the power supply;
(9) The power switch is turned on to form electroosmosis net in the sinking cylinder, na 2 SiO 3 Anions in the solution migrate to the anode, caCl 2 Cations in the solution move to the cathode, thereby producing CaSiO in the soil body 3 And (3) depositing, reinforcing soil in the depositing cylinder, and improving the bearing capacity of the suction type cylindrical foundation.
Claims (1)
1. A construction method of a suction type cylindrical foundation sinking barrel correction and reinforcement device is characterized in that the main structure of the suction type cylindrical foundation sinking barrel correction and reinforcement device is a sinking barrel; the sinking cylinder comprises a cylinder cover (3) and a cylinder body, and the cylinder cover is provided with a drainage valve (4); 4-6 copper pipes or steel pipes (6) are uniformly arranged in the sinking cylinder, 6-8 grouting holes (6-2) are uniformly arranged on each copper pipe or steel pipe (6), the grouting holes (6-2) are wrapped by elastic rubber rings, and the copper pipes or steel pipes (6) are isolated from the sinking cylinder by insulating materials (5); the sinking cylinder is connected with the upper floating structure through a steel cable (1-1) to provide bearing capacity for the upper floating structure; the copper pipe or the steel pipe (6) is connected with a superstructure direct current power supply through a cable (1-2) to form electroosmosis and can be converted by an electrode, so that the purposes of rectifying and reinforcing the suction type cylindrical foundation sinking cylinder are achieved; the steel cable (1-1) and the cable (1-2) are wrapped together by a sleeve (1-3) with seawater erosion prevention function;
the construction method comprises the following steps:
(1) Carrying a sinking cylinder of a suction type cylindrical foundation containing a copper pipe or steel pipe (6) and an insulating material (5) to a preset sinking construction position;
(2) Setting the sinking cylinder as a cathode, setting the copper pipe or the steel pipe (6) as an anode, and connecting the copper pipe or the steel pipe (6) and the cable wires (1-2) of the sinking cylinder with the anode and the cathode of a power supply respectively;
(3) Sinking and penetrating construction is carried out on the sinking cylinder under the action of dead weight;
(4) The drainage valve (4) is connected with a water suction pump, slurry in the sinking cylinder is pumped out, negative pressure is formed in the sinking cylinder, and the sinking cylinder is further penetrated under the action of the negative pressure;
(5) Opening a direct current power switch on one side of the sinking barrel, which is not enough in penetration depth, to form electroosmosis, and further sinking the sinking barrel under the action of the electroosmosis until the requirements of the designed depth and the gradient are met;
(6) After the sinking cylinder is penetrated, cutting off the power supply of the sinking cylinder, and connecting one half of a cable (1-2) connected with the copper pipe or the steel pipe with the positive electrode of the power supply and the other half of the cable connected with the negative electrode of the power supply;
(7) Injecting chemical slurry into the copper pipe or the steel pipe (6), and penetrating the chemical slurry into a deep sea soil body through grouting holes (6-2) on the copper pipe or the steel pipe (6) under the action of grouting pressure;
(8) And the power switch is turned on to form an electroosmosis net in the sinking cylinder, soil bodies in the sinking cylinder and the cylinder wall are reinforced under the electroosmosis effect, and the integral pulling-resistant bearing capacity of the suction type cylindrical foundation is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055464.5A CN109695264B (en) | 2019-01-21 | 2019-01-21 | Suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055464.5A CN109695264B (en) | 2019-01-21 | 2019-01-21 | Suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109695264A CN109695264A (en) | 2019-04-30 |
| CN109695264B true CN109695264B (en) | 2023-09-19 |
Family
ID=66234206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910055464.5A Active CN109695264B (en) | 2019-01-21 | 2019-01-21 | Suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109695264B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106907B (en) * | 2019-05-10 | 2021-07-02 | 东南大学 | Suction type caisson foundation and cement soil mixing pile reinforcement combination |
| CN110241839B (en) * | 2019-06-20 | 2021-08-06 | 浙江兴岛机械股份有限公司 | Suction type cylindrical foundation |
| CN112982504B (en) * | 2021-02-05 | 2021-10-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Electroosmosis rectification silt sea area inclined barrel type wind power foundation device and test method |
| CN114837165B (en) * | 2022-05-10 | 2024-07-12 | 中交一公局集团有限公司 | Structure and method for improving single-chamber closed underground diaphragm wall foundation bearing capacity by post grouting reinforcement stress soil body |
| CN115262667B (en) * | 2022-08-05 | 2023-05-23 | 中山大学 | Angular momentum type suction type foundation deviation correcting device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990015586A (en) * | 1997-08-07 | 1999-03-05 | 정순착 | Electric osmosis consolidation method and consolidation drainage device |
| CN101319504A (en) * | 2008-07-11 | 2008-12-10 | 同济大学 | Sea floor suction type foundation immersion method |
| CN101812838A (en) * | 2010-04-27 | 2010-08-25 | 天津大学 | Foundation reinforcement method based on curing agent and bucket foundation suction technique |
| CN101824819A (en) * | 2010-04-27 | 2010-09-08 | 天津大学 | Method for stabilizing foundation based on electro-osmosis technique and bucket foundation negative pressure technique |
| CN102505693A (en) * | 2011-11-11 | 2012-06-20 | 河海大学 | Electroosmosis assistant pile sinking technology and construction method thereof |
| CN102587357A (en) * | 2012-03-27 | 2012-07-18 | 河海大学 | Construction method for electro-osmosis aided driving of cast-in-place X-shaped pile |
| CN202543020U (en) * | 2012-05-07 | 2012-11-21 | 天津大学 | Annular electric field and pressure synergized sludge dehydration and granulation device |
| CN105603964A (en) * | 2016-03-10 | 2016-05-25 | 中交天津港湾工程研究院有限公司 | Centrosymmetric electroosmosis electrode device and method for reducing uplifting resistance of large-diameter steel cylinder by electroosmosis of centrosymmetric electroosmosis electrode device |
| CN105735075A (en) * | 2016-02-02 | 2016-07-06 | 浙江大学 | Electroosmosis solidification processing method for temporary constructed roadbed at dredger fill field |
| WO2018115176A1 (en) * | 2016-12-24 | 2018-06-28 | Ørsted Wind Power A/S | Foundation for a structure |
| CN209686472U (en) * | 2019-01-21 | 2019-11-26 | 大连理工大学 | A kind of suction type cylindrical foundation sinks cylinder correction and bracing means |
-
2019
- 2019-01-21 CN CN201910055464.5A patent/CN109695264B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990015586A (en) * | 1997-08-07 | 1999-03-05 | 정순착 | Electric osmosis consolidation method and consolidation drainage device |
| CN101319504A (en) * | 2008-07-11 | 2008-12-10 | 同济大学 | Sea floor suction type foundation immersion method |
| CN101812838A (en) * | 2010-04-27 | 2010-08-25 | 天津大学 | Foundation reinforcement method based on curing agent and bucket foundation suction technique |
| CN101824819A (en) * | 2010-04-27 | 2010-09-08 | 天津大学 | Method for stabilizing foundation based on electro-osmosis technique and bucket foundation negative pressure technique |
| CN102505693A (en) * | 2011-11-11 | 2012-06-20 | 河海大学 | Electroosmosis assistant pile sinking technology and construction method thereof |
| CN102587357A (en) * | 2012-03-27 | 2012-07-18 | 河海大学 | Construction method for electro-osmosis aided driving of cast-in-place X-shaped pile |
| CN202543020U (en) * | 2012-05-07 | 2012-11-21 | 天津大学 | Annular electric field and pressure synergized sludge dehydration and granulation device |
| CN105735075A (en) * | 2016-02-02 | 2016-07-06 | 浙江大学 | Electroosmosis solidification processing method for temporary constructed roadbed at dredger fill field |
| CN105603964A (en) * | 2016-03-10 | 2016-05-25 | 中交天津港湾工程研究院有限公司 | Centrosymmetric electroosmosis electrode device and method for reducing uplifting resistance of large-diameter steel cylinder by electroosmosis of centrosymmetric electroosmosis electrode device |
| WO2018115176A1 (en) * | 2016-12-24 | 2018-06-28 | Ørsted Wind Power A/S | Foundation for a structure |
| CN209686472U (en) * | 2019-01-21 | 2019-11-26 | 大连理工大学 | A kind of suction type cylindrical foundation sinks cylinder correction and bracing means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109695264A (en) | 2019-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109695264B (en) | Suction type cylindrical foundation sinking cylinder rectifying and reinforcing device and construction method thereof | |
| EP3558497B1 (en) | Foundation for a structure | |
| CN109555149B (en) | Ocean suction type cylindrical foundation reinforcing device and construction method thereof | |
| CN110965571B (en) | Negative pressure barrel-pile composite foundation structure and construction method thereof | |
| CN105714762B (en) | Change and fill out compacting improvement soft clay electric osmose reinforcement means | |
| CN111456075A (en) | Pile barrel composite truss type offshore wind turbine foundation and construction process thereof | |
| CN105401577A (en) | Suction type pile shoe suitable for self-lifting platform and mounting method | |
| CN100535264C (en) | Steel boxed cofferdam and recovery method thereof | |
| CN113605383A (en) | A steel protects a section of thick bamboo is transferred in merogenesis for bored concrete pile construction | |
| CN209686472U (en) | A kind of suction type cylindrical foundation sinks cylinder correction and bracing means | |
| CN210797617U (en) | Pile barrel composite truss type offshore wind turbine foundation | |
| CN110158585A (en) | A kind of device and construction method for cutting down Soft Soil Area pile foundation negative friction force | |
| CN211735480U (en) | Negative pressure barrel-pile composite foundation structure | |
| CN109306706B (en) | Main and auxiliary barrel seabed injection device and construction method thereof | |
| CN211735379U (en) | Waterproof structure of anti-floating anchor rod penetrating through basement bottom plate | |
| CN201158821Y (en) | Cofferdam of steel pouring jacket | |
| CN101660312B (en) | Reinforced cement mixing pile composite foundation treatment and construction method | |
| CN202530448U (en) | Large-diameter cross section-variable special-shape resistance-increase steel pipe pile system | |
| CN203684215U (en) | Carbon fiber cloth bag type cast-in-situ anti-arch curved surface combined special-shaped pile | |
| CN102628270B (en) | Great-diameter variable section irregularly-shaped resistance-increased steel pipe pile system and construction method thereof | |
| CN115404897A (en) | Construction method of marine composite foundation | |
| CN108301409A (en) | A kind of interior casing mounting process | |
| CN103741682A (en) | Carbon fiber cloth bag cast-in-situ anti-arch curved surface combined irregular-shaped pile and construction method thereof | |
| CN114293547A (en) | Anti-pulling type tubular pile | |
| CN210766791U (en) | Shear resistance foundation ditch is concrete structure of back cover under water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |