CN220367126U - Solar power station support foundation lateral rigidity testing device - Google Patents
Solar power station support foundation lateral rigidity testing device Download PDFInfo
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- CN220367126U CN220367126U CN202321599986.XU CN202321599986U CN220367126U CN 220367126 U CN220367126 U CN 220367126U CN 202321599986 U CN202321599986 U CN 202321599986U CN 220367126 U CN220367126 U CN 220367126U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000011068 loading method Methods 0.000 claims abstract description 35
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 238000011065 in-situ storage Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a solar power station support foundation lateral rigidity testing device which comprises a cantilever member, a support foundation, a jack, a loading counterforce device and a measuring device, wherein the measuring device comprises a load measuring device and a displacement sensor, the cantilever member is connected with the support foundation, the jack is arranged on one side of the support foundation, the jack applies load to one side of the support foundation to be tested, the loading counterforce device applies downward pressure to the support foundation to be tested, the load measuring device is used for acquiring a support foundation load value, the displacement sensor acquires a support foundation displacement, and the lateral rigidity of the support foundation is acquired through the load value and the displacement; and inclination angle testers are arranged on two sides of the support foundation. The utility model provides a device for testing the lateral rigidity of a support foundation of a solar power station, which has the advantages of simple structure, strong site operability and high accuracy of test data.
Description
Technical Field
The utility model relates to the technical field of support foundation testing, in particular to a support foundation lateral rigidity testing device for a solar power station.
Background
Under the international 'carbon neutralization' background, domestic solar power stations are developed vigorously, but at present, no relevant standard for detecting the support foundation of the solar power stations exists in China, according to the requirements of the technical Specification of the support foundation of the solar power stations, pile foundation quality inspection accords with the relevant regulations of the current national standard of the inspection and acceptance Specification of construction quality of foundation engineering of building foundation and the current industry standard of the inspection technical Specification of foundation piles of building foundation, however, the specifications have the test requirements on the lateral horizontal bearing capacity of the conventional foundation, but are different from the support foundation of the solar power stations, the support foundation is higher than the ground, and when heliostats are installed at the top end of the foundation, the gravity center is not coincident with the axis of the foundation, and lateral bending moment of the foundation can be generated. Therefore, the support foundation of the solar power station can not only receive vertical pressure, vertical pulling force and lateral force, but also generate lateral bending moment under the action of wind load and dead weight of the heliostat, and in order to ensure the normal use function of the support foundation, model calculation is needed to be carried out on the support foundation, and site in-situ test is needed to be carried out on the support foundation.
Since there is no method for testing the lateral rigidity of the support base in the prior art, it is necessary to study a method for testing the lateral rigidity of the support base of a solar power station.
Disclosure of Invention
In view of the defects existing at present, the utility model provides the device for testing the lateral rigidity of the support base of the solar power station, which has the advantages of simple structure, strong site operability and high accuracy of test data.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:
the device comprises a cantilever member, a support base, a jack, a loading counterforce device and a measuring device, wherein the measuring device comprises a load measuring device and a displacement sensor, the cantilever member is connected with the support base, the jack is arranged on one side of the support base, the jack applies load to one side of the support base to be tested, the loading counterforce device applies downward pressure to the support base to be tested, the load measuring device is used for acquiring a support base load value, the displacement sensor acquires a support base displacement, and the lateral rigidity of the support base is acquired through the load value and the displacement; and inclination angle testers are arranged on two sides of the support foundation.
According to one aspect of the utility model, the cantilever member is connected with the bracket base through a bolt, and the cantilever member is fixedly connected with the balancing weight at one end far away from the bracket base.
According to one aspect of the utility model, the loading counterforce device is an anchor pile loading counterforce device or a pile weight platform loading counterforce device.
According to one aspect of the utility model, the displacement sensors are symmetrically arranged on two sides of the support base.
According to one aspect of the utility model, the load measuring device is a pressure sensor, an oil pressure sensor or a digital display pressure sensor.
According to one aspect of the utility model, the top end and the bottom end of the support base are respectively provided with two dip angle testers, and a protective cover is arranged outside the dip angle testers.
The implementation of the utility model has the advantages that: the testing device for the lateral rigidity of the support foundation of the solar power station can flexibly build a testing platform according to site conditions, and solves the problem of lateral in-situ testing equipment; simulating deformation characteristics of a bracket foundation under actual specific working conditions through a loading test, and collecting various data in a test process; finally, the design parameters of the support foundation are determined through data processing, so that the design parameters required by the support foundation when bearing lateral load action are effectively solved, the support foundation lateral test can be simply, conveniently and effectively implemented, and the method has the advantages of low cost, high efficiency and simple equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a solar power station bracket base lateral stiffness testing device according to the utility model.
In the figure, 1, cantilever members; 2. a bracket base; 3. a jack; 4. a concrete counterweight; 5. a load measuring device; 6. balancing weight; 7. an inclination angle tester.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the lateral rigidity testing device of the support foundation of the solar power station comprises a cantilever member, a support foundation, a jack, a loading counter-force device and a measuring device, wherein the measuring device comprises a load measuring device and a displacement sensor, the cantilever member is connected with the support foundation, the jack is arranged on one side of the support foundation, the jack applies load to one side of the support foundation to be tested, the loading counter-force device applies downward pressure to the support foundation to be tested, the load measuring device is used for obtaining a support foundation load value, the displacement sensor obtains a support foundation displacement, and the lateral rigidity of the support foundation is obtained through the load value and the displacement; and inclination angle testers are arranged on two sides of the support base.
The cantilever member is connected with the support foundation through bolts, and the cantilever member is fixedly connected with a balancing weight at one end far away from the support foundation.
In practical application, the jack is a hydraulic jack, and the jack is carried on the concrete counterweight table, and the device adopts the hydraulic jack to simulate wind load when carrying out horizontal load test, adopts the cantilever member to hang the mode of counter weight and applys the moment of flexure that the dead weight produced of heliostat to simulate. The weight is a standard weight and the cantilever member hangs the standard weight to apply a bending moment M-xy.
The loading counterforce device can be an anchor pile counterforce device or a pile weight platform counterforce device, the loading counterforce device applies downward pressure to the bracket foundation to be tested, and when the anchor pile counterforce device is selected, the anchor pile loading counterforce device is checked and calculated, and the requirement of reverse bearing capacity is met. When the pile weight platform counterforce device is selected, the pile weight platform counterforce device should add the weight to the foot once, and the pile weight platform should be stable. The counterforce provided by the counterforce device of the pile weight platform is not less than 1.2 times of the maximum loading value; the components of the reactor force device of the pile weight platform should meet the requirements of bearing capacity and deformation.
The jack is used for applying force to the support foundation direction, then the support foundation to be tested is applied with load in the horizontal direction, the load value is measured through the load measuring device, the load measuring device can be a pressure sensor, an oil pressure sensor or a digital display pressure sensor, the digital display pressure sensor is used according to actual conditions, and the load value can be directly displayed.
In practical application, the testing device for the lateral rigidity of the support foundation of the solar power station can flexibly build a testing platform according to field conditions, and solves the problem of lateral in-situ testing equipment; simulating deformation characteristics of a support foundation under actual operation conditions through a loading test, and collecting various data in a test process; finally, the design parameters of the pile body are determined through data processing, so that the design parameters required by the support foundation when bearing the lateral load effect are effectively solved, the support foundation lateral test can be simply, conveniently and effectively implemented, and the method has the advantages of low cost, high efficiency and simple equipment.
In practical application, be equipped with the bolt hole on the cantilever member, cantilever member passes through bolted connection with the support basis, and the installation is dismantled conveniently.
In practical application, the displacement sensors are symmetrically arranged on two sides of the support foundation, the distance from each measuring point of the displacement sensor 3 to the lateral center point of the support foundation is the same, and the dividing value is not less than 0.001mm. Two dip angle testers are installed respectively to the top and the bottom of support basis, and the protection cover is equipped with to the dip angle tester to guarantee that it is not influenced by factors such as environment air temperature, vibration.
In practical application, when the lateral rigidity of the solar power station bracket foundation is tested, the bearing capacity is controlled by the material strength, and the loading amount is preferably loaded according to the design requirement. When the top of the support foundation bears horizontal load, the support foundation has certain rigidity, so that the overall tracking precision of the heliostat can be ensured, and in the test process, the test indexes are as follows: after loading P-xy and M-xy, the top of the stand column of the support is bent and deformed phi max; p-xy and M-xy should be on the same axis through the center of the foundation.
In the actual test process, after M-xy is applied to the top of the bracket foundation, P-xy is applied, and the lateral rigidity of the bracket foundation is tested by adopting a multi-cycle loading method.
The P-xy load classification can be performed according to 1/10 of the estimated maximum lateral stiffness, and can also be performed according to the loading level required by design. After each stage of load is applied, constant load measures displacement sensor data for 4min, then the displacement sensor data is unloaded to zero, residual data is measured and read after 2min is stopped, so that a loading cycle is completed, the cycle is completed for 5 times, primary loading observation is completed, and no stop is needed in the middle of testing. And respectively measuring and reading data at the top end and the ground of the support foundation. The test loading process loads according to the design requirement loading stage.
The loading may be terminated when one of the following conditions is met: 1. the support foundation is damaged; 2. the bearing capacity of foundation soil is achieved; 3. the design maximum loading value is reached. And stopping loading after the test reaches the maximum loading value of the design requirement.
And respectively calculating total deformation, deformation above the ground and deformation below the ground according to the measured and read inclination angle tester data at the top end of the support foundation and at the two sides of the ground, and respectively drawing a loading value-time-lateral radian (M-t-rad) relation curve. The lateral limit stiffness can be obtained by taking the M-t-rad curve to generate a previous stage load with obviously abrupt drop, a previous stage load with damage on a bracket foundation, a previous stage load with damage on foundation soil, and a maximum loading value as the lateral limit stiffness. And according to the measurement data, the elastic deformation and the plastic deformation of the corresponding load can be calculated.
The implementation of the utility model has the advantages that: the testing device for the lateral rigidity of the support foundation of the solar power station can flexibly build a testing platform according to site conditions, and solves the problem of lateral in-situ testing equipment; simulating deformation characteristics of a bracket foundation under actual specific working conditions through a loading test, and collecting various data in a test process; finally, the design parameters of the support foundation are determined through data processing, so that the design parameters required by the support foundation when bearing lateral load action are effectively solved, the support foundation lateral test can be simply, conveniently and effectively implemented, and the method has the advantages of low cost, high efficiency and simple equipment.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. The device is characterized by comprising a cantilever member, a support foundation, a jack, a loading counterforce device and a measuring device, wherein the measuring device comprises a load measuring device and a displacement sensor, the cantilever member is connected with the support foundation, the jack is arranged on one side of the support foundation, the jack applies load to one side of the support foundation to be tested, the loading counterforce device applies downward pressure to the support foundation to be tested, the load measuring device is used for acquiring a support foundation load value, the displacement sensor acquires a support foundation displacement, and the lateral rigidity of the support foundation is acquired through the load value and the displacement; and inclination angle testers are arranged on two sides of the support foundation.
2. The device for testing the lateral rigidity of a support base of a solar power station according to claim 1, wherein the cantilever member is connected with the support base through bolts, and a balancing weight is fixedly connected to one end of the cantilever member far away from the support base.
3. The solar power plant support foundation lateral stiffness testing device according to claim 1, wherein the loading counterforce device is an anchor pile loading counterforce device or a pile loading counterforce device.
4. The device for testing the lateral rigidity of the support base of the solar power station according to claim 1, wherein the displacement sensors are symmetrically arranged on two sides of the support base.
5. The solar power plant support foundation lateral stiffness testing device according to claim 1, wherein the load measuring device is a pressure sensor, an oil pressure sensor or a digital display pressure sensor.
6. The device for testing the lateral rigidity of the support base of the solar power station according to claim 1, wherein two inclination testers are respectively arranged at the top end and the bottom end of the support base, and a protective cover is arranged outside the inclination testers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321599986.XU CN220367126U (en) | 2023-06-23 | 2023-06-23 | Solar power station support foundation lateral rigidity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321599986.XU CN220367126U (en) | 2023-06-23 | 2023-06-23 | Solar power station support foundation lateral rigidity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220367126U true CN220367126U (en) | 2024-01-19 |
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ID=89514331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321599986.XU Active CN220367126U (en) | 2023-06-23 | 2023-06-23 | Solar power station support foundation lateral rigidity testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220367126U (en) |
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2023
- 2023-06-23 CN CN202321599986.XU patent/CN220367126U/en active Active
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