CN209585090U - A kind of ocean suction type cylindrical foundation bracing means - Google Patents
A kind of ocean suction type cylindrical foundation bracing means Download PDFInfo
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- CN209585090U CN209585090U CN201920051396.0U CN201920051396U CN209585090U CN 209585090 U CN209585090 U CN 209585090U CN 201920051396 U CN201920051396 U CN 201920051396U CN 209585090 U CN209585090 U CN 209585090U
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- Prior art keywords
- tube wall
- cylindrical foundation
- suction type
- type cylindrical
- ocean
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000012774 insulation material Substances 0.000 claims abstract description 8
- 208000002925 dental caries Diseases 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000013535 sea water Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004746 geotextile Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 37
- 238000007596 consolidation process Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000007667 floating Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000032798 delamination Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- UZVHFVZFNXBMQJ-UHFFFAOYSA-N butalbital Chemical compound CC(C)CC1(CC=C)C(=O)NC(=O)NC1=O UZVHFVZFNXBMQJ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model belongs to ocean structure suction type cylindrical foundation technical field, provides a kind of ocean suction type cylindrical foundation bracing means.Cylindrical foundation includes cover and cylinder two parts；Cover is equipped with water discharging valve；Cylinder is the double-layer structure comprising outer tube wall and inner tube wall；Outer tube wall and inner tube wall are tightly connected, and intermediate there are cavitys；For the resistance wire of heating or other heating devices, heat-conducting insulation material is filled in the gap between resistance wire or other heating devices and inside and outside barrel for installation in cavity between outer tube wall and inner tube wall；Several drain bars are equably arranged on outer tube wall and inner tube wall.The utility model improves surrounding soil temperature by resistive heater or other heating devices heat cylinders；Infiltration coefficient improves surrounding soil at high temperature, further occurrence consolidation, and the moisture in the soil body can be discharged in the drain bar being arranged on inside and outside barrel in time, promotes the effective stress of the soil body, increases the undrained shear strength of the soil body.
Description
Technical field
The utility model belongs to ocean structure suction type cylindrical foundation technical field more particularly to a kind of ocean suction type cylinder
The bracing means on shape basis.
Background technique
With continually developing for offshore petroleum resources, more and more petroleum resources are by the profundal zone from ocean.China
South China Sea petroleum resources rich reserves are the important areas of deep-sea oil development of resources.In South Sea deep-sea oil development of resources
In the process, suction type cylindrical foundation is widely used in deep-sea platform, the floating type knot in ocean as a kind of excellent base form
In the engineering structures such as structure.
Suction type cylindrical foundation be generally bottom opening, it is top closed and be equipped with pump mouth it is columnar structured, have peace
Fill the technological merits such as convenient, at low cost, construction efficiency is high.Suction type cylindrical foundation is during heavy pass through, first in Gravitative Loads
Sinking is passed through to certain depth, then forms negative pressure in cylinder by seawater in extraction cylinder, basis is sunk using cylinder inside and outside differential pressure and is passed through
To designated depth.Suction type cylindrical foundation is connect by anchor chain with top floating platform, provides bearing capacity for floating platform.
Interaction between the performance and basis-soil of suction type cylindrical foundation bearing capacity has very big association, can pass through raising
The shear stress of soil around coefficient of friction and increase basis between basis-soil, to improve holding for suction type cylindrical foundation
Carry power.For the reinforcing of suction type cylindrical foundation, presently disclosed utility model patent is mainly mentioned in the way of grouting in soil mass
The bearing capacity of high suction type cylindrical foundation.For example, Chinese utility model patent " the layer-by-layer ground based on bucket foundation negative pressure technology
Reinforcement means " (CN101666099A) discloses one kind and realizes layer-by-layer slip casting in suction tube to improve suction tube foundation bearing capacity
Construction method；Chinese utility model patent " grouting formula suction anchor and its installation method " (CN 106240749A) discloses one
The suction tube basis of kind three-stage, by pouring into cement slurry into middle cylinder and soil body gap to improve laterally holding for suction anchor
It carries power and increases the coefficient of friction of surrounding soil and anchor cylinder contact surface；Apply for a kind of Chinese utility model patent " suction of protection against erosion
Power barrel base and its delamination pour slurry compacted soil layer method " (CN 107882058A) discloses a kind of suction barrel base of protection against erosion
And its delamination pour slurry compacted soil layer method, injected hole is opened up by ribbed pipe of putting more energy into and realizes delamination pour slurry；Apply for Chinese utility model
Patent " a kind of suction caisson foundation of the bottom plate with squeezing unit " (CN 107401177A) discloses a kind of bottom plate band mud jacking
The suction caisson foundation of device consolidates slurries with four-bladed vane integral, is increased in negative pressure cylinder by the slip casting at cylinder inner cylinder bottom
The weight and end resistance of the soil body.Though the bearing capacity on basis, note can be promoted by promoting suction type cylindrical foundation in the way of slip casting
Basis recycles highly difficult after slurry, causes the great wasting of resources.
Utility model content
It is relatively low to solve the low caused foundation bearing capacity of suction type cylindrical foundation surrounding soil undrained shear strength,
And basis caused by suction type cylindrical foundation is reinforced by grouting mode and recycles difficult problem, the utility model discloses
A kind of suction type cylindrical foundation device that can reinforce cylinder surrounding soil；Cylinder surrounding soil is heated using cylinder, is promoted
Cylinder surrounding soil consolidation settlement promotes the undrained shear strength of cylinder surrounding soil, to promote suction type cylindrical foundation
Bearing capacity；It is mainly characterized by: cylindrical foundation includes cover and cylinder two parts；The cylinder includes outer tube wall
With the double-layer structure of inner tube wall；Installed between the outer tube wall and inner tube wall for the resistance wire of heating or other heating devices with
Improve cylinder surrounding soil temperature；Equably arrange 4-6 drain bar soil to be discharged in time on the outer tube wall and inner tube wall
Moisture in body promotes the effective stress of the soil body, increases the undrained shear strength of the soil body.The suction type reinforced using this method
The cylindrical foundation problem difficult there is no recycling.
The technical solution of the utility model includes:
A kind of ocean suction type cylindrical foundation bracing means is connect by guy wire 1-1 with superstructure；The ocean
Suction type cylindrical foundation bracing means includes outer tube wall 2, inner tube wall 3, cover 4, water discharging valve 5, heating device 6, heat conductive insulating
Material 7；
The cover 4 is fixed on the cylinder upper end of ocean suction type cylindrical foundation bracing means, formed upper end sealing, under
The inverted tubular construction of end opening；Water discharging valve 5 is provided on cover 4；The water discharging valve 5, connect with suction pump, uses
To extract the intracorporal pulp-water of cylinder out；The outer tube wall 2 and inner tube wall 3 is tightly connected, intermediate there are cavitys；The heating dress
It sets 6 to be set in the cavity that outer tube wall 2 and inner tube wall 3 are formed by, heat-conducting insulation material 7 is filled around heating device 6；Institute
The heat-conducting insulation material 7 stated is connect by cable 1-2 with superstructure；
The cable 1-2, is bundled together by sleeve 1-3 and guy wire 1-1.
The sleeve selects the material of anti-seawater corrosion.
Be additionally provided with drain bar 8 on the ocean suction type cylindrical foundation bracing means, be plastics or geotextile,
It is respectively arranged at the outer wall of outer tube wall 2 and the inner wall of inner tube wall 3, and concordant with the lower edges of outer tube wall 2 and inner tube wall 3.
A kind of construction method of ocean suction type cylindrical foundation bracing means, steps are as follows:
(1) installation suction type cylindrical foundation: suction type cylindrical foundation is heavy under the action of self weight and negative pressure to be passed through to design deeply
Degree；
(2) temperature detect switch (TDS) is arranged: setting temperature detect switch (TDS) is opened, closes threshold value；When barrel temperature is more than to close threshold value, close
Close heater switch；When barrel temperature is lower than threshold value is opened, heater switch is opened；
(3) heating consolidation: opening temperature detect switch (TDS), heats to cylinder surrounding soil, and the soil body drains rapidly under temperature action
Consolidation, until the soil body reaches design undrained shear strength.
The utility model has the beneficial effects that the utility model is by being arranged heating device inside suction type cylindrical foundation,
Cylinder surrounding soil is heated, the infiltration coefficient of the soil body is improved and improves the rate of consolidation of the soil body, and by outer tube wall and
The drain bar of inner tube wall setting further promotes the rate of consolidation of cylinder surrounding soil, and it is anti-to effectively improve not draining for surrounding soil
Intensity is cut to promote the bearing capacity of suction type cylindrical foundation；Meanwhile the suction type cylindrical foundation that this method is reinforced is not present back
Receive difficult problem.
Detailed description of the invention
Fig. 1 is the utility model mooring floating platform schematic diagram；
Fig. 2 (a) is the utility model structure diagram；
Fig. 2 (b) is the structural relation schematic diagram of guy wire, cable and anticorrosive casing pipe three；
Fig. 3 is Fig. 2 (a) longitudinal center sectional view；
Fig. 4 is Fig. 2 (a) top view；
In figure: 1 guy wire and cable；1-1 guy wire；1-2 cable；1-3 anticorrosive casing pipe；2 outer tube walls；3 inner tube walls；
4 covers；5 water discharging valves；6 heating devices；7 heat-conducting insulation materials；8 drain bars.
Specific implementation method
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figures 1 to 3, a kind of suction type cylindrical foundation bracing means, including cover 4 and cylinder two parts；This implementation
The cover 4 and cylinder of suction type cylindrical foundation in example are steel structure；Cover 4 is that diameter D is 3.5m, with a thickness of 0.05m
Circular steel plate；Cover 4 is fixed on the upper end of cylinder in a welding manner, and upper end closed, lower ending opening is collectively formed with cylinder
Inverted tubular construction；Water discharging valve 5 is provided on cover 4；Water discharging valve 5 is connect with suction pump, and basis is in Gravitative Loads
After the completion of sinking is passed through, the switch pump that draws water is opened, the intracorporal pulp-water of cylinder is extracted out, forms negative pressure in cylinder, is promoted basic further
It is heavy to pass through.Cylinder is that diameter D is 3.5m, and the high L of cylinder is the double-deck Cylinder wall structure of 14m, and barrel includes outer tube wall 2 and inner tube wall 3, barrel
Thick t is 0.05m, and inside and outside barrel spacing is 0.1m；Outer tube wall 2 and inner tube wall 3 form hollow shell using being tightly connected.In
Resistive heater 6 for heating is installed between outer tube wall 2 and inner tube wall 3；It is the cylinder of 0.01m that resistive heater 6, which has diameter,
Section can be rapidly heated to design temperature.Heat conductive insulating is filled up in gap between resistive heater 6 and outer tube wall 2 and inner tube wall 3
Material 7, the heat that resistive heater 6 generates quickly are transferred to native around by heat-conducting insulation material 7, outer tube wall 2 and inner tube wall 3
Body promotes the temperature of surrounding soil；Heat-conducting insulation material 7 is while to play insulating effect with high thermal conductivity ceramic powder, is prevented
Only 6 short circuit of resistive heater.Resistive heater 6 is connect by cable 1-2 with floating platform, and cable 1-2 passes through sleeve
1-3 is bundled together with guy wire 1-1；Sleeve 1-3 can effectively prevent guy wire 1-1 and cable 1-2 by seawater corrosion；Suction
Formula cylindrical foundation is connect by the inclusion enclave of guy wire 1-1 and cable 1-2 with floating platform.In 2 He of outer tube wall of cylinder
Uniformly for 8 plastic draining boards 8 of arrangement the moisture in the soil body to be discharged in time, promote the soil body has effect respectively on inner tube wall 3
Power increases the undrained shear strength of the soil body；Plastic draining board 8 is the strip of wide 0.3m, thickness 0.05m, long 14m；Plastic row
The top and bottom of water plate 8 are concordant with the lower edge of cylinder and top edge respectively；Plastic draining board 8 is fixed in a welding manner
On outer tube wall 2 and inner tube wall 3.
In work progress, the inclusion enclave of guy wire 1-1 and cable 1-2 are connect with suction type cylindrical foundation first；In
Suction type cylindrical foundation is positioned to design position on sea bed；Suction type cylindrical foundation injection sea bed under Gravitative Loads；Work as suction
When power formula cylindrical foundation no longer sinks under Gravitative Loads, pulp-water in cylinder is extracted out by water discharging valve 5, is formed in cylinder negative
Pressure；Suction type cylindrical foundation sinks under the action of negative pressure to be passed through to projected depth.After the completion of heavy pass through, setting adds suction type cylindrical foundation
Threshold value is closed in the unlatching of the temperature switch of hot water radiation wire 6；When barrel temperature is lower than 30 DEG C, heater switch is opened；When cylinder temperature
When degree is more than 60 DEG C, heater switch is closed.The soil body rapid discharging consolidation under temperature action, until the soil body reaches design and do not drain
Shearing strength.
Claims (5)
1. a kind of ocean suction type cylindrical foundation bracing means is connect by guy wire (1-1) with superstructure；Its feature exists
In the ocean suction type cylindrical foundation bracing means includes outer tube wall (2), inner tube wall (3), cover (4), water discharging valve
(5), heating device (6) and heat-conducting insulation material (7)；
The cover (4) is fixed on the cylinder upper end of ocean suction type cylindrical foundation bracing means, forms upper end sealing, lower end
The inverted tubular construction of opening；Water discharging valve (5) are provided on cover (4)；The water discharging valve (5) connects with suction pump
It connects, for extracting the intracorporal pulp-water of cylinder out；The outer tube wall (2) and inner tube wall (3) is tightly connected, intermediate there are cavitys；It is described
Heating device (6) be set to outer tube wall (2) and inner tube wall (3) is formed by cavity, fill and lead around heating device (6)
Heat insulator (7)；The heat-conducting insulation material (7) is connect by cable (1-2) with superstructure.
2. suction type cylindrical foundation bracing means in ocean according to claim 1, which is characterized in that the ocean suction
It is additionally provided with drain bar (8) on formula cylindrical foundation bracing means, is plastics or geotextile, is respectively arranged at outer tube wall (2)
Outer wall and inner tube wall (3) inner wall, and it is concordant with the lower edges of outer tube wall (2) and inner tube wall (3).
3. suction type cylindrical foundation bracing means in ocean according to claim 1 or 2, which is characterized in that the cable
Line (1-2) is bundled together by sleeve (1-3) and guy wire (1-1).
4. suction type cylindrical foundation bracing means in ocean according to claim 1 or 2, which is characterized in that the sleeve
Select the material of anti-seawater corrosion.
5. suction type cylindrical foundation bracing means in ocean according to claim 3, which is characterized in that the sleeve selection
The material of anti-seawater corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051396.0U CN209585090U (en) | 2019-01-12 | 2019-01-12 | A kind of ocean suction type cylindrical foundation bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051396.0U CN209585090U (en) | 2019-01-12 | 2019-01-12 | A kind of ocean suction type cylindrical foundation bracing means |
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| Publication Number | Publication Date |
|---|---|
| CN209585090U true CN209585090U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920051396.0U Withdrawn - After Issue CN209585090U (en) | 2019-01-12 | 2019-01-12 | A kind of ocean suction type cylindrical foundation bracing means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555149A (en) * | 2019-01-12 | 2019-04-02 | 大连理工大学 | A kind of ocean suction type cylindrical foundation bracing means and its construction method |
| CN113982020A (en) * | 2021-11-12 | 2022-01-28 | 南京航空航天大学 | Combined suction anchor with deviation correcting and quick sinking functions and using method thereof |
-
2019
- 2019-01-12 CN CN201920051396.0U patent/CN209585090U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555149A (en) * | 2019-01-12 | 2019-04-02 | 大连理工大学 | A kind of ocean suction type cylindrical foundation bracing means and its construction method |
| CN109555149B (en) * | 2019-01-12 | 2023-12-15 | 大连理工大学 | Ocean suction type cylindrical foundation reinforcing device and construction method thereof |
| CN113982020A (en) * | 2021-11-12 | 2022-01-28 | 南京航空航天大学 | Combined suction anchor with deviation correcting and quick sinking functions and using method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191105 Effective date of abandoning: 20231215 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191105 Effective date of abandoning: 20231215 |