CN203755287U - Flexible carrying plate capable of applying uniform vertical pressure - Google Patents
Flexible carrying plate capable of applying uniform vertical pressure Download PDFInfo
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- CN203755287U CN203755287U CN201420137388.5U CN201420137388U CN203755287U CN 203755287 U CN203755287 U CN 203755287U CN 201420137388 U CN201420137388 U CN 201420137388U CN 203755287 U CN203755287 U CN 203755287U
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- plate
- corrosion resistant
- stainless steel
- resistant plate
- steel plate
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Abstract
The utility model discloses a flexible carrying plate capable of applying uniform vertical pressure, and belongs to the field of rock mechanical parameter testing. The flexible carrying plate comprises a steel sleeve, a stainless steel plate and a water sac wall, wherein the steel sleeve is reversely arranged on the stainless steel plate; three small holes are formed in the stainless steel plate; a pressure meter is arranged in a small hole I; an air valve is arranged in a small hole II; an air valve is connected with the air pump; the air valve is connected with an air pump; a lead of a water level sensor is led out of the small hole III; the water level sensor is arranged on the lower surface of the stainless steel plate; the water sac wall is arranged below the stainless steel plate, and constructs a sealed water sac with the lower surface of the stainless steel plate. The flexible carrying plate has the beneficial effects that by means of the device, uniform distribution of the vertical pressure at the bottom plate can be realized no matter load acting on an upper portion is uniform distributed force or concentrated force. Meanwhile, air is pumped into the sac or released according to data of the water level sensor, and the volume of air in the sac can be kept constant in a pressurizing process, thereby keeping the height and bottom area of the water sac constant.
Description
Technical field
The utility model belongs to rock mechanics parameter testing field in geotechnical engineering, is specifically related to a kind of flexible loaded plate that applies even vertical pressure.
Background technology
The test of rock mechanics parameter is basis and the prerequisite of geotechnical study, and the method for testing of rock mechanics parameter is divided into laboratory experiment and in-situ test.In-situ test is subject to the favor of geotechnical engineering circle because having the advantage of disturbed soil, reliable test result not.Plate (PLT) is one of the most frequently used soil in-situ method of testing, and employing plate can test out critical edge pressure, the ultimate load of foundation soil, and modulus of deformation E0, modulus of resilience Er.
At present, loaded plate used in plate is rigid bearing plate, and its bottom surface is circular or square, designs very simply, and material is generally thick corrosion resistant plate.Under centric load effect, at the bottom of rigid bearing plate plate, keep plane, sedimentation equates everywhere, and pressure distribution is relevant with native engineering type and stress state of living in, complicated and changeable, the shear strength parameter (c, φ) of the critical edge pressure inverting soil body therefore obtaining according to rigid bearing plate load test does not have application feasibility, and the soil body E0, the Er that by rigid bearing plate load test, obtain are inaccurate.
In sum, existing rigid bearing plate load pressure in load test test can not be uniformly distributed, and the parameter result obtaining is prepared not; Therefore be badly in need of a kind ofly can making the equally distributed flexible loaded plate of load pressure.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of flexible loaded plate that applies even vertical pressure, and this loaded plate can be finally inversed by the shear strength parameter of the soil body according to foundation soil critical edge pressure value, make load test test result more accurate.
For achieving the above object, the utility model provides following technical scheme:
A kind of flexible loaded plate that applies even vertical pressure, comprise corrosion resistant plate and water pocket wall, on described corrosion resistant plate, have three apertures, aperture I place arranges pressure meter, aperture II place arranges air valve, air valve is connected with air pump again, the wire of aperture III place drawing-off water level sensor, and described level sensor is arranged at the soffit of corrosion resistant plate; Described water pocket wall is arranged at corrosion resistant plate below, forms a water pocket sealing with corrosion resistant plate soffit.
Further, also comprise steel bushing, and the inversion of described steel bushing is arranged on corrosion resistant plate.
Further, described water pocket wall adopts adhering with epoxy resin in corrosion resistant plate below, and water pocket wall adopts high tensile flexible impermeable material to make.
The beneficial effects of the utility model are: by this device, no matter top imposed load is for being uniformly distributed power or concentrated force, can realize being uniformly distributed of vertical pressure at the bottom of plate, no matter imposed load is uniformly distributed power or concentrated force on corrosion resistant plate, by fluid pressure transmission, make to act at the bottom of plate the vertical compressive stress equal and opposite in direction of soil body surface, simultaneously, according to the data of level sensor, to pumping in capsule or discharging air, can guarantee in pressure process, volume of air is constant in capsule, thus guaranteed water pocket height and floor space constant.
Accompanying drawing explanation
Fig. 1 is a kind of front view that applies the flexible loaded plate of even vertical pressure;
Fig. 2 is a kind of top view that applies the flexible loaded plate of even vertical pressure;
In figure: 1-steel bushing, 2-corrosion resistant plate, 3-water pocket wall, 4-aperture I, 5-aperture II, 6-level sensor, 7-wire.
The specific embodiment
See figures.1.and.2, a kind of flexible loaded plate that applies even vertical pressure, comprise corrosion resistant plate 2 and water pocket wall 3, on described corrosion resistant plate 2, have three apertures, aperture I 4 places arrange pressure meter, and aperture II 5 places arrange air valve, and air valve is connected with air pump again, the wire 7 of aperture III place drawing-off water level sensor 6, described level sensor 6 is arranged at the soffit of corrosion resistant plate 2; Described water pocket wall 3 is arranged at corrosion resistant plate 2 belows, forms a water pocket sealing with corrosion resistant plate 2 soffits.
This flexibility loaded plate also comprises steel bushing 1, and 1 inversion of described steel bushing is arranged on corrosion resistant plate 2.
Described water pocket wall 3 adopts adhering with epoxy resin in corrosion resistant plate 2 belows, and water pocket wall 3 adopts high tensile flexible impermeable material to make.
Before testing, first by aperture I 4, in air bag, pour into a certain amount of tap water, then at aperture I 4 places, install pressure meter is set; Level sensor 6 laminatings arrange the soffit with corrosion resistant plate 2, and by the wire 7 of aperture III drawing-off water level sensor 6, wire 7 is connected with other measuring instruments again.Steel bushing 1 is welded in the upper surface of corrosion resistant plate 2, and upper load is reached to bottom water pocket.Water pocket wall 3 forms by being coated with polyurethane (PUR) waterproof film in the thick two-way carbon cloth of 0.122mm, and water pocket wall 3 in corrosion resistant plate 2 belows, forms the water pocket that seal with corrosion resistant plate 2 by adhering with epoxy resin.。
During test, along with the increase of upper load, water pocket pressure increases, and showing as pressure gauge reading increases, and manometric reading value is the vertical value of compressive stress that acts on soil body surface.Air is compressed in water pocket, and pressure increases, and measuring instrument shows that waterline rises, and utilizes air pump to pump into air in water pocket, waterline is returned and fall, so can guarantee test process in capsule volume of air constant, thereby guaranteed water pocket height and floor space constant.Test completely, synchronize with off-load, open air valve and lay down air in water pocket, to guarantee the safety of water pocket.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can to it, make various changes in the form and details, and not depart from the claims in the present invention book limited range.
Claims (3)
1. the flexible loaded plate that can apply even vertical pressure, comprise corrosion resistant plate and water pocket wall, it is characterized in that: on described corrosion resistant plate, have three apertures, aperture I place arranges pressure meter, aperture II place arranges air valve, air valve is connected with air pump again, the wire of aperture III place drawing-off water level sensor, and described level sensor is arranged at the soffit of corrosion resistant plate; Described water pocket wall is arranged at corrosion resistant plate below, forms a water pocket sealing with corrosion resistant plate soffit.
2. a kind of flexible loaded plate that applies even vertical pressure according to claim 1, is characterized in that: also comprise steel bushing, and the inversion of described steel bushing is arranged on corrosion resistant plate.
3. a kind of flexible loaded plate that applies even vertical pressure according to claim 1, is characterized in that: described water pocket wall adopts adhering with epoxy resin in corrosion resistant plate below, and water pocket wall adopts high tensile flexible impermeable material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137388.5U CN203755287U (en) | 2014-03-25 | 2014-03-25 | Flexible carrying plate capable of applying uniform vertical pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137388.5U CN203755287U (en) | 2014-03-25 | 2014-03-25 | Flexible carrying plate capable of applying uniform vertical pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203755287U true CN203755287U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137388.5U Expired - Fee Related CN203755287U (en) | 2014-03-25 | 2014-03-25 | Flexible carrying plate capable of applying uniform vertical pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203755287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884274A (en) * | 2017-12-13 | 2018-04-06 | 重庆科技学院 | The test device and method of testing of the class lateral pressure value of the soil body three |
| CN114960785A (en) * | 2022-07-11 | 2022-08-30 | 重庆科技学院 | Flexible bearing plate for foundation load test |
-
2014
- 2014-03-25 CN CN201420137388.5U patent/CN203755287U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884274A (en) * | 2017-12-13 | 2018-04-06 | 重庆科技学院 | The test device and method of testing of the class lateral pressure value of the soil body three |
| CN114960785A (en) * | 2022-07-11 | 2022-08-30 | 重庆科技学院 | Flexible bearing plate for foundation load test |
| CN114960785B (en) * | 2022-07-11 | 2023-05-12 | 重庆科技学院 | Flexible bearing plate for foundation load test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170325 |