CN105735343A - Floating negative-pressure foundation composite structure - Google Patents
Floating negative-pressure foundation composite structure Download PDFInfo
- Publication number
- CN105735343A CN105735343A CN201610180847.1A CN201610180847A CN105735343A CN 105735343 A CN105735343 A CN 105735343A CN 201610180847 A CN201610180847 A CN 201610180847A CN 105735343 A CN105735343 A CN 105735343A
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- Prior art keywords
- pressure
- negative
- foundation
- composite structure
- cover plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- Engineering & Computer Science (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)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a floating negative-pressure foundation composite structure. The floating negative-pressure foundation composite structure consists of multiple steel cylinders, multiple separation plates, a cover plate and an upper structure, and is characterized in that the multiple cylinders are connected as a whole through the multiple separation plates and are provided with the cover plate at the tops to form multiple separation bins with covers and without bottoms; and openable ventilation holes are formed in the tops of all the separation bins. The foundation structure mainly performs the negative-pressure sinking through the multiple steel cylinder separation bins, and is mixed with the exhaust of the separation bins or assisted by lower vacuum degree to control the load of the separation plates in a proper range to the greatest extent; the load is transferred to the foundation structure through the upper structure; and the form of the upper structure can be selected according to the mechanics characteristic. The floating negative-pressure foundation composite structure is light in self weight, convenient and fast in construction and convenient for manufacturing, installation and lifting, and can float on a sludge seabed. The floating negative-pressure foundation composite structure is low in requirements on prefabricating factories, fast in construction, quick in transfer and capable of performing the assembly construction without damaging a traditional soil structure.
Description
Technical field
Floating negative-pressure foundation combinative structure of the present invention, belongs to port engineering, coastal engineering and hydraulic engineering field.
Background technology
At present in port engineering, coastal engineering and hydraulic engineering are frequently encountered by soft soil foundation, ground need to be processed to improve its bearing capacity by the building for bearing greater level power and vertical force, traditional method is to adopt pile foundation or load discharging consolidation processing mode, not only speed of application is slow for it, and basement process is costly, for this, a kind of novel floating negative-pressure foundation combinative structure is proposed, this basis combinative structure is by transportation by driving after integral manufacturing to scene, negative pressure sinks down in soft soil foundation, float on soft soil foundation, good supporting course need not be entered, do not destroy the original state of the soil body, speed of application is fast, cost is low, can be widely applied to soft soil foundation.
The acquired barrel-shaped base structure of back-off thin-walled (patent name: the barrel-shaped base structure of back-off thin-walled, the patent No.: ZL201120104097.2) clapboard stress is unreasonable, clapboard stress requires high and fragile in sinking, the combinative structure that multiple bottomless steel cylinder (with five for case) is combined with concrete cover is now proposed, so that structure stress is more reasonable, construct more convenient efficiently.
Summary of the invention
It is an object of the invention to provide a floating negative-pressure foundation combinative structure, solve vertical bearing capacity and the horizontal bearing capacity problem of structure under Soft Soil, and then reduce construction costs, reduction of erection time.
To achieve these goals, the present invention is realized by the following technical programs:
Floating negative-pressure foundation combinative structure is made up of multiple steel cylinders, multiple dividing plate, cover plate and superstructure, it is characterized in that: multiple cylinders are coupled to an entirety by multiple dividing plates, top arranges cover plate and forms multiple compartment having lid bottomless, and each compartment top sets switchable passage.Base structure carries out negative pressure sinking mainly through multiple steel cylinder compartments, mixes compartment aerofluxus or is aided with less vacuum, to control dividing plate load in suitable scope as far as possible；Load reaches base structure by superstructure, and superstructure pattern can be selected according to stress characteristic.
As preferentially, the vertical load that described negative pressure is sunk is spread by cylinder, from without weak soil in process cartridge.
The Force principle of the present invention is: by being diffused within the scope of multiple steel cylinder by upper vertical load, and then meet the requirement for bearing capacity of undisturbed soil.Ground is when bearing instantaneous short-term vertical load simultaneously, and owing to compartment top passage is closed, storehouse internal drainage speed is relatively slow, and pore water pressure quickly increases to offset the vertical force of increase suddenly.When bearing horizontal force, in basic scope, soil can be considered rigid body, and before relying on bigger the conduct oneself with dignity frictional resistance and cylinder that produce, passive earth pressure bears horizontal force.
Beneficial effect: present configuration, from heavy and light, convenient and quick construction, facilitates fabrication and installation, handling, it is possible to swim on muddy sea bed.Requiring low to precast plant, construction is fast, and turnover is fast, it is possible to carry out fabricated construction.By steel cylinder and cover plate, upper load is diffused in bigger scope during work, this structure floats on soft soil foundation, good supporting course need not be entered, not destroying soil body original structure, structure has good integrity, reasonable stress, manufacturing conditions is excellent, sinking speed is fast, the advantage that cost is low, it is adaptable to soft soil foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the profile of Fig. 1.
1. steel cylinder, 2. dividing plate, 3. cover plate, 4. superstructure in figure, the 5. passage on cover plate.
Detailed description of the invention
Floating negative-pressure foundation combinative structure as shown in Figure 1 and Figure 2, this structure is made up of five steel cylinders (1), six dividing plates (2), cover plate (3) and superstructure (4), so just defining five cylinder compartments and two mixing compartments, the cover plate at each compartment top is respectively provided with switchable passage (5).Cover plate (3) and superstructure (4) adopt xoncrete structure.
After the present invention makes by land, dive transportation by lighter to job site by half, half dives refutes sinking, this structure flotates to erecting bed, opens the switchable passage on cover plate behind location, discharges gas in storehouse, structure starts to sink under Gravitative Loads, then drawing water in tower silo and reach certain vacuum, structure cover plate continues to sink under inside and outside differential pressure effect, until sinking to designed elevation.Superstructure can be prefabricated together with basis, it is possible to separately prefabricated, the later stage lays.
Claims (2)
1. floating negative-pressure foundation combinative structure is made up of multiple steel cylinders, multiple dividing plate, cover plate and superstructure, it is characterized in that: multiple cylinders are coupled to an entirety by multiple dividing plates, top arranges cover plate and forms multiple compartment having lid bottomless, and each compartment top sets switchable passage；Base structure carries out negative pressure sinking mainly through multiple steel cylinder compartments, mixes compartment aerofluxus or is aided with vacuum degree control dividing plate load.
2. floating negative-pressure foundation combinative structure as claimed in claim 1, it is characterised in that: the vertical load that described negative pressure is sunk is spread by cylinder, from without weak soil in process cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180847.1A CN105735343A (en) | 2016-03-28 | 2016-03-28 | Floating negative-pressure foundation composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180847.1A CN105735343A (en) | 2016-03-28 | 2016-03-28 | Floating negative-pressure foundation composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105735343A true CN105735343A (en) | 2016-07-06 |
Family
ID=56252078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610180847.1A Pending CN105735343A (en) | 2016-03-28 | 2016-03-28 | Floating negative-pressure foundation composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105735343A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706951A (en) * | 2019-01-08 | 2019-05-03 | 中交第三航务工程勘察设计院有限公司 | A kind of steel reinforced concrete combination negative pressure barrel structure and its construction method |
| CN109972650A (en) * | 2019-04-08 | 2019-07-05 | 中交第三航务工程勘察设计院有限公司 | A kind of wind power foundation steel combination barrel structure and construction method |
| CN113897939A (en) * | 2021-09-08 | 2022-01-07 | 浙江华坤地质发展有限公司 | Partition cabin type soft foundation reinforcing device and soft foundation treatment method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201214785Y (en) * | 2007-12-28 | 2009-04-01 | 天津港(集团)有限公司 | Cylinder moveable box reel type foundation structure member with rib pile |
| CN101666101A (en) * | 2009-09-29 | 2010-03-10 | 天津大学 | Movable prefabricated multi-barrel type gravity mixed foundation |
| CN202298643U (en) * | 2011-10-26 | 2012-07-04 | 江苏海上龙源风力发电有限公司 | Negative-pressure cylinder type gravity foundation for offshore wind power |
| CN102877482A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Gravity type foundation structure and construction method thereof |
| KR101304934B1 (en) * | 2012-05-02 | 2013-09-06 | 한국해양과학기술원 | Multi complex hybrid foundation type offshore wind tower |
| CN205530330U (en) * | 2016-03-28 | 2016-08-31 | 中交第三航务工程勘察设计院有限公司 | Floating negative pressure basis integrated configuration |
-
2016
- 2016-03-28 CN CN201610180847.1A patent/CN105735343A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201214785Y (en) * | 2007-12-28 | 2009-04-01 | 天津港(集团)有限公司 | Cylinder moveable box reel type foundation structure member with rib pile |
| CN101666101A (en) * | 2009-09-29 | 2010-03-10 | 天津大学 | Movable prefabricated multi-barrel type gravity mixed foundation |
| CN202298643U (en) * | 2011-10-26 | 2012-07-04 | 江苏海上龙源风力发电有限公司 | Negative-pressure cylinder type gravity foundation for offshore wind power |
| KR101304934B1 (en) * | 2012-05-02 | 2013-09-06 | 한국해양과학기술원 | Multi complex hybrid foundation type offshore wind tower |
| CN102877482A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Gravity type foundation structure and construction method thereof |
| CN205530330U (en) * | 2016-03-28 | 2016-08-31 | 中交第三航务工程勘察设计院有限公司 | Floating negative pressure basis integrated configuration |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706951A (en) * | 2019-01-08 | 2019-05-03 | 中交第三航务工程勘察设计院有限公司 | A kind of steel reinforced concrete combination negative pressure barrel structure and its construction method |
| CN109972650A (en) * | 2019-04-08 | 2019-07-05 | 中交第三航务工程勘察设计院有限公司 | A kind of wind power foundation steel combination barrel structure and construction method |
| CN113897939A (en) * | 2021-09-08 | 2022-01-07 | 浙江华坤地质发展有限公司 | Partition cabin type soft foundation reinforcing device and soft foundation treatment method |
| CN113897939B (en) * | 2021-09-08 | 2023-03-10 | 浙江华坤地质发展有限公司 | Partition cabin type soft foundation reinforcing device and soft foundation treatment method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |