CN110455709B - Experimental device for simulating influence of ultra-wide cutting edge on sinking resistance of thick-wall concrete - Google Patents
Experimental device for simulating influence of ultra-wide cutting edge on sinking resistance of thick-wall concrete Download PDFInfo
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- CN110455709B CN110455709B CN201910806017.9A CN201910806017A CN110455709B CN 110455709 B CN110455709 B CN 110455709B CN 201910806017 A CN201910806017 A CN 201910806017A CN 110455709 B CN110455709 B CN 110455709B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 21
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 238000004088 simulation Methods 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 description 11
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses an experimental device for simulating the influence of an ultra-wide blade foot on the sinking resistance of thick-wall concrete, which comprises a blade foot, wherein a concrete upright post is fixedly arranged in the middle of the top side of the blade foot, lower clamping blocks are arranged on the top surface of the blade foot at equal intervals on two sides of the concrete upright post, and a top plate is fixedly arranged on the top side of the concrete upright post; an upper clamping block matched with the lower clamping block is arranged on the bottom surface of the top plate, and a displacement meter, a tension pressure meter and an inclinometer are arranged on the top surface of the top plate corresponding to the concrete upright post; concrete plates attached to the concrete columns are inserted between the upper clamping blocks and the lower clamping blocks on two sides of the concrete columns, and a soil pressure gauge and a pore water pressure gauge are arranged on the concrete plates located on the outermost sides. The invention aims to provide the experimental device which can reduce the experimental cost, shorten the experimental period and quickly and conveniently simulate the influence of different ultra-wide widths of the cutting edge on the sinking resistance of the concrete cylinder.
Description
Technical Field
The invention relates to the field of construction experiment devices, in particular to an experiment device for simulating the influence of ultra-wide cutting edge on the sinking resistance of thick-wall concrete.
Background
Compared with the traditional fossil fuel, the wind energy is clean in use and low in cost, and has the advantages of wide development range, safety, no energy consumption and the like. Compared with land wind power, the offshore wind power has the advantages of high wind speed, low turbulence, no land occupation and the like. With the successful application of the one-step installation technology of the offshore composite cylindrical fan foundation and the complete machine, the construction cost of the offshore wind power foundation is greatly reduced. At present, a composite cylinder type foundation designed and installed consists of a concrete transition section, a steel cylinder and a warehouse separation plate. In order to further reduce the cost of the cylinder foundation, the steel cylinder can be replaced by a concrete cylinder under the premise of ensuring the design strength requirement.
The thickening of the cylinder wall tends to increase the resistance in the sinking process, at present, the sinking resistance of the concrete cylinder is reduced by adopting a blade ultra-wide means, and in order to explore the influence of the ultra-wide width on the sinking resistance of the whole concrete cylinder, a comparison experiment is required to be carried out by designing blade ultra-wide sinking assisting devices with different widths. Because the casting maintenance period of the concrete is longer, the experimental period of the simulation experiment is greatly prolonged. Therefore, an experimental device capable of reducing experimental cost, shortening experimental period and rapidly and conveniently simulating influence of different ultra-wide widths of cutting edge and sinking resistance of a concrete cylinder is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and aims to provide the experimental device which can reduce the experimental cost, shorten the experimental period and quickly and conveniently simulate the influence of different ultra-wide widths of the cutting edge on the sinking resistance of the concrete cylinder.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the experimental device for simulating the influence of the ultra-wide blade foot on the sinking resistance of the thick-wall concrete comprises a blade foot, wherein a concrete upright post is fixedly arranged in the middle of the top side of the blade foot, lower clamping blocks are arranged on the top surface of the blade foot at equal intervals on two sides of the concrete upright post, and a top plate is fixedly arranged on the top side of the concrete upright post; an upper clamping block matched with the lower clamping block is arranged on the bottom surface of the top plate, and a displacement meter, a tension pressure meter and an inclinometer are arranged on the top surface of the top plate corresponding to the concrete upright post; concrete plates attached to the concrete columns are inserted between the upper clamping blocks and the lower clamping blocks on two sides of the concrete columns, and a soil pressure gauge and a pore water pressure gauge are arranged on the concrete plates located on the outermost sides.
Further, the concrete upright post, the top plate and the blade foot are mutually fixed into a whole through the embedded part.
Further, the distance between the lower clamping blocks and the distance between the upper clamping blocks are 2cm-4cm.
Further, the thickness of the concrete slab is 2cm-4cm.
Furthermore, the soil pressure gauge and the pore water pressure gauge are embedded in parallel at the outer end of the outermost concrete slab at equal intervals, and the number of the soil pressure gauge and the pore water pressure gauge is 26.
Further, the cross section of the cutting edge foot is triangular.
Compared with the prior art, the invention has the following beneficial effects:
in the concrete cylinder sinking resistance experiment, the concrete cylinder is simulated by the concrete upright post, and compared with the concrete cylinder model with different ultra-wide widths of the cutting edge, the concrete cylinder model has the advantage that experimental materials are greatly saved. In the experimental process, the concrete column part is unchanged, and the thickness of the concrete column is changed by adding concrete plates with the same quantity on two sides of the concrete column, so that the width of two sides of the cutting edge exceeding the concrete column is changed. By changing the concrete plates with different numbers, the ultra-wide width experimental variable control of different cutting edges is realized, the variable control of a comparison experiment is facilitated, the assembly and transformation of experimental models with different working conditions are simple, and the experimental period of the whole exploratory experiment is greatly shortened.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the outermost concrete slab according to the present invention;
fig. 3 is a use state diagram of the present invention.
Reference numerals illustrate:
the hydraulic pressure measuring device comprises a top plate 1, an upper clamping block 2, a 3-concrete column, a lower clamping block 4, a 5-cutting foot, a 6-concrete plate 7-soil pressure gauge 8-pore water pressure gauge 9-tension pressure gauge 10-inclinometer and a 11-displacement gauge.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 3, an experimental device for simulating the influence of the ultra-wide of a blade foot on the sinking resistance of thick-wall concrete comprises a blade foot 5, wherein a concrete upright post 3 is fixedly arranged in the middle of the top side of the blade foot 5, lower clamping blocks 4 are arranged on the top surface of the blade foot 5 at equal intervals on two sides of the concrete upright post 3, and a top plate 1 is fixedly arranged on the top side of the concrete upright post 3; the bottom surface of the top plate 1 is provided with an upper clamping block 2 matched with a lower clamping block 4, and the top surface of the top plate 1 is provided with a displacement meter 11, a tension-pressure meter 9 and an inclinometer 10 corresponding to the concrete column 3; a concrete slab 6 attached to the concrete column 3 is inserted between the upper clamping blocks 2 and the lower clamping blocks 4 on two sides of the concrete column 3, a soil pressure gauge 7 and a pore water pressure gauge 8 are arranged on the concrete slab 6 on the outermost side, the soil pressure gauge 7 and the pore water pressure gauge 8 are uniformly spaced and embedded at the outer end of the concrete slab 6 on the outermost side by side, and the number of the soil pressure gauge 7 and the pore water pressure gauge 8 is 2-6; the concrete upright post 3, the top plate 1 and the cutting edge 5 are mutually fixed into a whole through embedded parts; the distance between the lower clamping blocks 4 and the distance between the upper clamping blocks 2 are 2cm-4cm, and the thickness of the concrete slab 6 is 2cm-4cm; the section of the blade foot 5 is triangular.
The concrete column 3, the top plate 1 and the cutting edge 5 are mutually fixed into a whole through the embedded part, and the end surfaces are flush, so that concrete plates and measurement experiment data can be conveniently inserted. The upper clamping block 2 corresponds to the lower clamping block 4 and is fixed on the top plate 1 and the cutting edge 5 in a welding mode. Before the experiment, according to the exceeding width of the blade foot 5 required to be simulated relative to the concrete upright 3, different numbers of concrete slabs 6 are added between the upper clamping block 2 and the lower clamping block 4. The concrete plates 6 are inserted close to the side walls of the two sides of the upright post, then the same number of concrete plates 6 are sequentially inserted into the two sides of the upright post, and the concrete plates 6 on the same side are mutually close. The thickness of the concrete plate 6 and the distance between the clamping blocks are 2cm, so that the gap between the concrete plates is reduced as much as possible while the clamping blocks are matched with the concrete plate, and different thicknesses of the stand columns are better simulated. When the lengths of the top plate 1, the concrete upright post 3, the cutting edge 5 and the concrete slab 6 in the insertion direction of the concrete slab are consistent, the data measured by the experimental device are the most stable, and the effect is the best. After the concrete slab 6 is additionally arranged, sinking resistance, inclination angle and displacement data of the sinking process of the experimental model can be recorded in real time through a tension-pressure gauge 9, an inclinometer 10 and a displacement gauge 11 which are arranged on the upper portion of the top plate 1, so that experimental working conditions of influence on the sinking resistance of the concrete cylinder can be realized by rapidly and conveniently simulating different ultra-wide widths of the blade 5.
After the experiment, each concrete slab 6 can be detached from both sides of the concrete column 3. And then, according to the width change of the two sides of the blade foot 5 beyond the concrete upright post 3, adding the same number of concrete plates 6 on the two sides of the upright post again, repeating the experiment, and comparing the measured resistance data. The concrete plates 6 are inserted at the outermost ends of the two sides of the concrete column 3, and the two concrete plates 6 provided with the soil pressure gauge 7 and the pore water pressure gauge 8 in the first experiment are fixedly used, so that the frictional resistance of the two sides of the column is conveniently measured.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. Experimental device for simulation cutting edge super wide is to thick wall concrete resistance influence that sinks, including the cutting edge, its characterized in that: the middle part of the top side of the cutting edge foot is fixedly provided with a concrete upright post, the top surface of the cutting edge foot is provided with lower clamping blocks at equal intervals on two sides of the concrete upright post, and the top side of the concrete upright post is fixedly provided with a top plate; an upper clamping block matched with the lower clamping block is arranged on the bottom surface of the top plate, and a displacement meter, a tension pressure meter and an inclinometer are arranged on the top surface of the top plate corresponding to the concrete upright post; concrete plates attached to the concrete columns are inserted between the upper clamping blocks and the lower clamping blocks on two sides of the concrete columns, a soil pressure gauge and a pore water pressure gauge are arranged on the concrete plates positioned on the outermost sides, and the concrete columns, the top plate and the cutting edge feet are mutually fixed into a whole through embedded parts; the distance between the lower clamping blocks and the distance between the upper clamping blocks are 2cm-4cm.
2. The experimental device for simulating the influence of blade foot ultra-wide on the sinking resistance of thick-wall concrete according to claim 1, wherein the experimental device is characterized in that: the thickness of the concrete slab is 2cm-4cm.
3. The experimental device for simulating the influence of blade foot ultra-wide on the sinking resistance of thick-wall concrete according to claim 1, wherein the experimental device is characterized in that: the soil pressure gauge and the pore water pressure gauge are embedded at the outer end of the outermost concrete slab side by side at equal intervals, and the number of the soil pressure gauge and the pore water pressure gauge is 2-6.
4. The experimental device for simulating the influence of blade foot ultra-wide on the sinking resistance of thick-wall concrete according to claim 1, wherein the experimental device is characterized in that: the section of the cutting edge foot is triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806017.9A CN110455709B (en) | 2019-08-27 | 2019-08-27 | Experimental device for simulating influence of ultra-wide cutting edge on sinking resistance of thick-wall concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806017.9A CN110455709B (en) | 2019-08-27 | 2019-08-27 | Experimental device for simulating influence of ultra-wide cutting edge on sinking resistance of thick-wall concrete |
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| Publication Number | Publication Date |
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| CN110455709A CN110455709A (en) | 2019-11-15 |
| CN110455709B true CN110455709B (en) | 2024-03-29 |
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| CN201910806017.9A Active CN110455709B (en) | 2019-08-27 | 2019-08-27 | Experimental device for simulating influence of ultra-wide cutting edge on sinking resistance of thick-wall concrete |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201473954U (en) * | 2009-04-23 | 2010-05-19 | 中国华西企业有限公司 | Device for mounting large-scale concrete cylinder structure for construction |
| CN102877484A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Steel-concrete composite cylinder-type foundation structure and construction method thereof |
| CN203284817U (en) * | 2013-06-04 | 2013-11-13 | 天津大学 | Device for measuring end resistance and frictional resistance of cylindrical foundation in site |
| CN203849930U (en) * | 2014-05-20 | 2014-09-24 | 中国石油化工股份有限公司 | Device for testing fracturing fracture frictional resistance |
| CN105067782A (en) * | 2015-09-15 | 2015-11-18 | 山东科技大学 | Similar material simulation experimental device with constant-pressure tracking loading and experimental method thereof |
| CN204875829U (en) * | 2015-08-27 | 2015-12-16 | 三峡大学 | Adjustable caisson cutting edge |
| CN109098201A (en) * | 2018-10-12 | 2018-12-28 | 西南交通大学 | A kind of super plane area portions prestressed concrete well foundation and its construction method |
| CN109695262A (en) * | 2019-01-20 | 2019-04-30 | 西南交通大学 | A kind of prominent heavy experimental rig of simulation open caisson generation founding |
| CN210894047U (en) * | 2019-08-27 | 2020-06-30 | 天津大学 | Experimental device for simulating influence of ultra-wide blade foot on sinking resistance of thick-wall concrete |
-
2019
- 2019-08-27 CN CN201910806017.9A patent/CN110455709B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201473954U (en) * | 2009-04-23 | 2010-05-19 | 中国华西企业有限公司 | Device for mounting large-scale concrete cylinder structure for construction |
| CN102877484A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Steel-concrete composite cylinder-type foundation structure and construction method thereof |
| CN203284817U (en) * | 2013-06-04 | 2013-11-13 | 天津大学 | Device for measuring end resistance and frictional resistance of cylindrical foundation in site |
| CN203849930U (en) * | 2014-05-20 | 2014-09-24 | 中国石油化工股份有限公司 | Device for testing fracturing fracture frictional resistance |
| CN204875829U (en) * | 2015-08-27 | 2015-12-16 | 三峡大学 | Adjustable caisson cutting edge |
| CN105067782A (en) * | 2015-09-15 | 2015-11-18 | 山东科技大学 | Similar material simulation experimental device with constant-pressure tracking loading and experimental method thereof |
| CN109098201A (en) * | 2018-10-12 | 2018-12-28 | 西南交通大学 | A kind of super plane area portions prestressed concrete well foundation and its construction method |
| CN109695262A (en) * | 2019-01-20 | 2019-04-30 | 西南交通大学 | A kind of prominent heavy experimental rig of simulation open caisson generation founding |
| CN210894047U (en) * | 2019-08-27 | 2020-06-30 | 天津大学 | Experimental device for simulating influence of ultra-wide blade foot on sinking resistance of thick-wall concrete |
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| CN110455709A (en) | 2019-11-15 |
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