CN114635456A - Composite cylinder type foundation anti-overturning model based on site and test method thereof - Google Patents
Composite cylinder type foundation anti-overturning model based on site and test method thereof Download PDFInfo
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- CN114635456A CN114635456A CN202210434135.3A CN202210434135A CN114635456A CN 114635456 A CN114635456 A CN 114635456A CN 202210434135 A CN202210434135 A CN 202210434135A CN 114635456 A CN114635456 A CN 114635456A
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- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention belongs to the field of offshore wind power foundations, and provides a composite barrel type foundation anti-overturning model based on a site and a test method thereof, wherein the composite barrel type foundation anti-overturning model comprises the following steps: the test bench to and sink the model body on compound cartridge type basis in the test bench, still include: the tension loading system is connected with the model body through a first steel wire rope, and a tension sensor used for recording tension data is connected between the model body and the first steel wire rope. Because the test position is selected at the seaside tidal flat and can be closer to the actual installation environment of the foundation, the designed and manufactured test model with the ratio of 1:10 can be closer to the actual basic size, and accurate test data can be obtained better.
Description
Technical Field
The invention relates to the field of offshore wind power foundations, in particular to a composite barrel type foundation anti-overturning model based on a site and a test method thereof.
Background
The composite cylindrical foundation is used as a novel wind power foundation applied to offshore wind power, although a large amount of experimental research and numerical simulation research have been developed in the early stages of research institutes and colleges of various departments, a certain theoretical foundation is established for the application of the composite cylindrical technology, and the composite cylindrical foundation is applied to actual engineering in various wind power plants at a certain scale, a certain difference still exists through the comparison of on-site monitoring data and theoretical data, and particularly the judgment on the anti-overturning capacity of the composite cylindrical foundation, so that the experimental research method for the anti-overturning capacity of the model has great necessity, and a scientific research foundation is provided for the later application of the composite cylindrical foundation.
Disclosure of Invention
The invention aims to solve the defects in the background art and provides a composite barrel type foundation anti-overturning model based on the field and a test method thereof.
The technical scheme provided by the invention is as follows: a field-based composite barrel foundation anti-overturning model, comprising: the test bench to and sink the model body on compound cartridge type basis in the test bench, still include: the tension loading system is connected with the model body through a first steel wire rope, and a tension sensor used for recording tension data is connected between the model body and the first steel wire rope.
Furthermore, a manual valve for controlling the sealing state is selectively arranged on the model body.
Furthermore, a tension loading platform is arranged on the ground on one side of the test pool, and a tension loading system is installed on the tension loading platform.
Furthermore, a negative pressure sinking mechanism for sinking the model body is arranged on the tension loading platform.
Furthermore, in the test pool, one side far away from the tension loading system is connected with a displacement sensor support, and a displacement sensor is connected between the displacement sensor support and the model body.
Furthermore, the displacement sensor support is connected with a counterweight pressing block on one side far away from the displacement sensor through a second steel wire rope, and the counterweight pressing block is arranged on the ground outside the test pool.
A test method of a composite barrel type foundation anti-overturning model based on the field is suitable for any one of the composite barrel type foundation anti-overturning models based on the field, and comprises the following steps:
s101, manufacturing two model bodies;
s102, installing the two model bodies in a test pool;
s103, when the two model bodies are in a closed state and an unsealed state, the water levels are graded according to different depths, the two model bodies are pulled by the tension loading system in a grading manner, and tension and corresponding displacement data under different water level depth grades are recorded.
Furthermore, one model body is provided with a manual valve, and the other model body is not provided with the manual valve.
Further, the model body is 1: scaling of 10.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the test method of the composite barrel type foundation anti-overturning model, the test position is selected at the seaside tidal flat and can be closer to the actual installation environment of the foundation, and the test model designed and manufactured in a ratio of 1:10 can be closer to the actual basic size, so that accurate test data can be obtained.
(2) According to the composite barrel type foundation anti-overturning model, after the tensile force is loaded by the tensile force loading system in a grading manner, the relation between the tensile force and the displacement recorded by the sensor in the closed and non-closed water level depth environment of the model body is analyzed, and the conclusion of relevant data is obtained to achieve the verification of the barrel type foundation anti-overturning capacity.
Drawings
FIG. 1 is a top view of a composite barrel foundation anti-overturning model of the present invention;
fig. 2 is a side view of the composite barrel foundation anti-overturning model of the present invention.
The reference numbers are as follows: 1. the device comprises a model body, 2, a test pool, 3, a tension loading platform, 4, a displacement sensor support, 5, a tension loading system, 6, a first steel wire rope, 7, a tension sensor, 8, a displacement sensor, 9, a negative pressure sinking mechanism, 10, a second steel wire rope, 11 and a counterweight pressing block.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the present invention is a composite barrel-based anti-overturning model based on the field, comprising: test 2 to and the model body 1 of sinking the compound cartridge type basis in test 2, still include: the tension loading system is arranged outside the test pool 2, is used for pulling the tension loading system 5 of the model body 1, is arranged in the test pool 2, is used for monitoring the displacement sensor 8 of the model body 1, is connected with the model body 1 through the first steel wire rope 6, and is connected with the tension sensor 7 used for recording tension data between the model body 1 and the first steel wire rope 6.
A manual valve for controlling the sealing state is selectively installed on the model body 1 of the present embodiment.
The test pool 2 of the embodiment is dug and manufactured in a seaside mud flat or seaside blow-fill place which is suitable for a cylindrical foundation installation environment.
The dimensions of the test cell 2 of this example are: 15 meters by 10 meters, 4-5 meters deep, can hold two model bodies 1 simultaneously.
The displacement sensor 8 of the present embodiment is on the opposite side of the tension loading system 5, and is used for measuring and recording the displacement distance of the model body 1.
Furthermore, a tension loading platform 3 is arranged on the ground on one side of the test pool 2, and a tension loading system 5 is installed on the tension loading platform 3.
In this embodiment, a concrete block of 15 meters by 10 meters by 16 meters is poured under the tension loading platform 3 to support the tension loading platform 3.
In the embodiment, a sandstone layer is laid on the ground on the side of the tension loading platform 3 and is used for an automobile crane or a filter belt crane to walk.
In the embodiment, the tension sensor 7 records the tension data of the tension loading system 5.
Further, a negative pressure sinking mechanism 9 for sinking the model body 1 is installed on the tension loading platform 3.
The negative pressure sinking mechanism 9 of the embodiment is used for communicating with the model body 1 through a pipeline and extracting air and water in the cabin of the model body 1 to form negative pressure in the cabin, so that the model body 1 is sunk in place.
Furthermore, a displacement sensor support 4 is connected to one side, far away from the tension loading system 5, of the test pool 2, and a displacement sensor 8 is connected between the displacement sensor support 4 and the model body 1.
The displacement sensor 8 of the present embodiment is used for measuring and recording displacement data of the model body 1.
Furthermore, the displacement sensor support 4 is connected with a counterweight pressing block 11 through a second steel wire rope 10 on one side far away from the displacement sensor 8, and the counterweight pressing block 11 is arranged on the ground outside the test pool 2.
The counterweight pressing block 11 of the embodiment is used for fixing the displacement sensor support 4 and preventing the displacement sensor support 4 from being forced to displace, so that the work of the displacement sensor 8 is influenced.
A test method of a composite barrel type foundation anti-overturning model based on the field is suitable for any one of the composite barrel type foundation anti-overturning models based on the field, and comprises the following steps:
s101, two model bodies 1 are manufactured.
On two model bodies 1 of this embodiment, one is installed manual valve, and one is not installed manual valve to can control the airtight state of model body 1.
The model ontology 1 of the present embodiment is 1: scaling of 10.
S102, the two model bodies 1 are arranged in the test cell 2.
S103, when the two model bodies 1 are in a closed state and an unsealed state, the water levels are graded according to different depths, the two model bodies 1 are pulled by the tension loading system 5 in a grading manner, and tension and corresponding displacement data under different water level depth grades are recorded.
According to the actual installation water level, according to the following steps of 1: the scaling of 10 specifies the water level depth in the test cell 2; pulling the two model bodies 1 in stages through a tension loading system 5; and recording the tension and the corresponding displacement data, and verifying the anti-overturning performance of the model body 1 in the closed state and the non-closed state according to the obtained data conclusion.
It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the specific structures, shapes, or configurations shown in the examples.
It is also noted that the illustrations herein may provide examples of parameters that include particular values, but that these parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error tolerances or design constraints. Directional phrases used in the embodiments, such as those referring to "upper", "lower", "front", "rear", "left", "right", etc., refer only to the orientation of the attached drawings and are not intended to limit the scope of the present application.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A field-based composite barrel foundation anti-overturning model, comprising: test pool (2) to and sink in model body (1) on compound cartridge type basis in test pool (2), its characterized in that still includes: the tensile force loading system (5) is arranged outside the test pool (2) and used for pulling the model body (1), the displacement sensor (8) is arranged in the test pool (2) and used for monitoring the model body (1), the tensile force loading system (5) is connected with the model body (1) through a first steel wire rope (6), and a tensile force sensor (7) used for recording tensile force data is connected between the model body (1) and the first steel wire rope (6).
2. A site-based composite cylinder type foundation anti-overturning model according to claim 1, wherein a manual valve for controlling the airtight state is selectively installed on the model body (1).
3. The on-site-based composite cylinder type foundation anti-overturning model according to claim 1, wherein a tension loading platform (3) is arranged on the ground at one side of the test pool (2), and the tension loading system (5) is installed on the tension loading platform (3).
4. A composite barrel type foundation anti-overturning model based on the field according to claim 3, characterized in that a negative pressure sinking mechanism (9) for sinking the model body (1) is installed on the tension loading platform (3).
5. The on-site-based composite barrel type foundation anti-overturning model is characterized in that a displacement sensor bracket (4) is connected to one side, far away from the tension loading system (5), in the test tank (2), and the displacement sensor (8) is connected between the displacement sensor bracket (4) and the model body (1).
6. The field-based composite barrel type foundation anti-overturning model as claimed in claim 1, wherein the displacement sensor bracket (4) is connected with a counterweight pressing block (11) at the side far away from the displacement sensor (8) through a second steel wire rope (10), and the counterweight pressing block (11) is on the ground outside the test pool (2).
7. A method for testing a composite barrel type foundation anti-overturning model based on the field, which is suitable for the composite barrel type foundation anti-overturning model based on the field according to any one of the claims 1-6, and is characterized by comprising the following steps:
s101, manufacturing two model bodies (1);
s102, installing the two model bodies (1) in the test pool (2);
s103, when the two model bodies (1) are in a closed state and an unsealed state, the water levels are graded according to different depths, the two model bodies (1) are pulled by the tension loading system (5) in a grading manner, and tension and corresponding displacement data under different water level depth grades are recorded.
8. A test method of a composite cylinder type foundation anti-overturning model based on the field according to claim 7, characterized in that one of said model bodies (1) is installed with said manual valve, and one of said model bodies (1) is not installed with said manual valve.
9. The test method of the composite barrel type foundation anti-overturning model based on the field as claimed in claim 7, wherein the model body (1) is 1: scaling of 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210434135.3A CN114635456A (en) | 2022-04-24 | 2022-04-24 | Composite cylinder type foundation anti-overturning model based on site and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210434135.3A CN114635456A (en) | 2022-04-24 | 2022-04-24 | Composite cylinder type foundation anti-overturning model based on site and test method thereof |
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| CN114635456A true CN114635456A (en) | 2022-06-17 |
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| CN202210434135.3A Pending CN114635456A (en) | 2022-04-24 | 2022-04-24 | Composite cylinder type foundation anti-overturning model based on site and test method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090191004A1 (en) * | 2006-04-10 | 2009-07-30 | Marcon A/S | Foundation Structure |
| CN107630477A (en) * | 2017-10-19 | 2018-01-26 | 中国石油大学(华东) | A kind of CYCLIC LOADING system for testing offshore foundation pile-soil interaction |
| CN207662747U (en) * | 2017-07-11 | 2018-07-27 | 河南建奇建设集团有限公司 | Test the CYCLIC LOADING system of pile-soil interaction power in foundation construction construction |
| CN112982504A (en) * | 2021-02-05 | 2021-06-18 | 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 |
-
2022
- 2022-04-24 CN CN202210434135.3A patent/CN114635456A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090191004A1 (en) * | 2006-04-10 | 2009-07-30 | Marcon A/S | Foundation Structure |
| CN207662747U (en) * | 2017-07-11 | 2018-07-27 | 河南建奇建设集团有限公司 | Test the CYCLIC LOADING system of pile-soil interaction power in foundation construction construction |
| CN107630477A (en) * | 2017-10-19 | 2018-01-26 | 中国石油大学(华东) | A kind of CYCLIC LOADING system for testing offshore foundation pile-soil interaction |
| CN112982504A (en) * | 2021-02-05 | 2021-06-18 | 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 |
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