CN202177475U - Soil pressure testing device - Google Patents
Soil pressure testing device Download PDFInfo
- Publication number
- CN202177475U CN202177475U CN2011202423110U CN201120242311U CN202177475U CN 202177475 U CN202177475 U CN 202177475U CN 2011202423110 U CN2011202423110 U CN 2011202423110U CN 201120242311 U CN201120242311 U CN 201120242311U CN 202177475 U CN202177475 U CN 202177475U
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a soil pressure testing device including a lower plate, an upper plate, a steel bar, a steel tube, a spring and a sleeve made of flexible material. The bottom of the steel bar is fixed in the central position of the lower plate and is perpendicular to the lower plate. The steel tube is fixed in the central position of the upper plate and the central position of the upper plate is provided with a hole. The steel bar goes through the hole of the upper plate and goes out from the steel tube. The spring is sleeved on the steel bar at a position between the upper plate and the lower plate. An upper and a lower free ends of the spring are fixed on the bottom face of the upper plate and the top face of the lower plate respectively. An axial lead of the spring overlaps with a line of centers of the upper and the lower plate. And the spring is disposed in the sleeve. An upper and a lower end of the sleeve are connected to the bottom face of the upper plate and the top face of the lower plate respectively. The soil pressure testing device in the utility model has characteristics of simple structure, convenient and reliable operation and low cost.
Description
Technical field
The utility model is a kind of pressure test device, specifically is meant a kind of device that is used to test embankment filled soil pressure.
Background technology
Along with the develop rapidly of China's economic construction, infrastructure such as high-grade highway and railway are built in a large number.In soft clay area embankment construction process, adopting the cement mixing pile soft soil foundation is one of method of using always, the ratio of cement mixing pile top and the soil pressure in stake week wherein, and promptly stress ratio is one of key parameter of this kind ground Treatment Design.This parameter has big uncertain; Method is through actual measurement the most reliably; The type vibration wire soil pressure cell commonly used of test at present, this device are the electronic installations of a cover inner structure relative complex, and the variation of soil pressure is loaded on the bearing disc of soil pressure cell; Thereby cause the variation of pressure cell fluid pressure, measure this pressure by vibrating wire pressure sensor again and change.But the type vibration wire soil pressure cell not only operates comparatively complicated but also involves great expense; Therefore, be necessary to develop a kind of embankment filled soil pressure test device reliable and cheap for manufacturing cost easy and simple to handle.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of soil pressure proving installation reliable and cheap for manufacturing cost easy and simple to handle.
In order to reach above-mentioned purpose, the solution of the utility model is:
A kind of soil pressure proving installation comprises the sleeve that lower plate, upper plate, reinforcing bar, steel pipe, spring and flexible material are processed; Wherein, the bottom of above-mentioned reinforcing bar is fixed on the center of above-mentioned lower plate and perpendicular with above-mentioned lower plate; Above-mentioned steel pipe is fixed on the center of above-mentioned upper plate and the center of above-mentioned upper plate is provided with the hole, and above-mentioned reinforcing bar passes in the above-mentioned steel pipe of above-mentioned Kong Houcong on the above-mentioned upper plate and passes; Above-mentioned spring housing is located at above-mentioned reinforcing bar on the position between above-mentioned upper plate and the above-mentioned lower plate; Two free ends up and down of above-mentioned spring are corresponding respectively to be fixed on the end face of bottom surface and above-mentioned lower plate of above-mentioned upper plate; The line of centres of the axial line of above-mentioned spring and above-mentioned upper plate and above-mentioned lower plate is overlapped; And above-mentioned spring is positioned at above-mentioned sleeve, and the two ends up and down of above-mentioned sleeve are corresponding respectively to be connected on the end face of bottom surface and above-mentioned lower plate of above-mentioned upper plate.
Above-mentioned sleeve is the sleeve that geotextile is processed.
The outer surface of upper of above-mentioned reinforcing bar is marked with scale.
Above-mentioned upper plate and above-mentioned lower plate are respectively circular steel plate.
After adopting said structure; The utility model soil pressure proving installation has following beneficial effect: lower plate keeps flat on the soil body or cement mixing pile of test; Upper plate is at the effect lower compression spring of soil pressure; Be fixed on steel pipe on the upper plate with respect to the relative shift that is fixed on the reinforcing bar on the lower plate through measurement, promptly measure the decrement of spring; The soil pressure that upper plate receives equals the decrement of spring and the product of spring stiffness factor; Adopt the utility model device to test embankment soil pressure, it is very easy to operate, and need not to debug and wait complicated preliminary work in early stage, and simple in structure, low cost of manufacture, for the embankment soil pressure is tested a kind of new approach that provides; The bottom of reinforcing bar is fixed on the center of lower plate and perpendicular with lower plate, and steel pipe is fixed on the center of upper plate, and under the soil pressure effect, upper plate is compression spring vertically downward like this, and measured amount of spring compression reliability is higher; Spring is positioned at the sleeve of being processed by geotextile, and the two ends up and down of sleeve are corresponding respectively to be connected on the end face of bottom surface and lower plate of upper plate, can prevent that like this foreign material such as the soil body from getting in the spring, further improved the precision and the reliability of measurement again; And the line of centres of the axial line of spring and upper plate and lower plate is overlapped, makes upper plate stressed evenly, also helps improving the precision and the reliability of measurement.
Description of drawings
Fig. 1 is the structural representation of the utility model soil pressure proving installation;
Fig. 2 is the working state schematic representation of the utility model soil pressure proving installation.
Among the figure:
Embodiment
In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail through specific embodiment below.
Shown in Fig. 1-2, the soil pressure proving installation of the utility model comprises lower plate 1, reinforcing bar 2, upper plate 3, steel pipe 4, spring 5 and sleeve 6.
During test; Lower plate 1 keeps flat on the soil body or cement mixing pile of test; Upper plate 3 is at the effect lower compression spring 5 of soil pressure, is fixed on steel pipe 4 on the upper plate 3 with respect to the relative shift that is fixed on the reinforcing bar 2 on the lower plate 1 through measurement, promptly measures the decrement of spring 5; The soil pressure that upper plate 3 receives equals the product of stiffness factor of decrement and the spring 5 of spring 5.Adopt the utility model device to test embankment soil pressure, it is very easy to operate, and need not to debug and wait complicated preliminary work in early stage, and simple in structure, low cost of manufacture, for the embankment soil pressure is tested a kind of new approach that provides; The bottom of reinforcing bar 2 is fixed on the center of lower plate 1 and perpendicular with lower plate 1, and steel pipe 2 is fixed on the center of upper plate 3, and under the soil pressure effect, upper plate 3 is compression spring 5 vertically downward like this, and the decrement reliability of measured spring 5 is higher; Spring 5 is positioned at the sleeve of being processed by geotextile 6, can prevent that foreign material such as the soil body from getting in the spring 5, has further improved precision and the reliability measured again.
The utility model promptly obtains the decrement of spring 5 through the relative displacement of test reinforcing bar 2 with respect to steel pipe 4, and then the soil pressure that converts and obtain testing the soil body or cement mixing pile.Therefore the utility model has solved that type vibration wire soil pressure cell expense is higher, the problem of testing complex, has characteristic simple in structure, easy and simple to handle, cost, for the test of embankment soil pressure provides a kind of new approach.
The product form and the style of the foregoing description and accompanying drawing and non-limiting the utility model, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.
Claims (4)
1. a soil pressure proving installation is characterized in that: comprise the sleeve that lower plate, upper plate, reinforcing bar, steel pipe, spring and flexible material are processed; Wherein, the bottom of above-mentioned reinforcing bar is fixed on the center of above-mentioned lower plate and perpendicular with above-mentioned lower plate; Above-mentioned steel pipe is fixed on the center of above-mentioned upper plate and the center of above-mentioned upper plate is provided with the hole, and above-mentioned reinforcing bar passes in the above-mentioned steel pipe of above-mentioned Kong Houcong on the above-mentioned upper plate and passes; Above-mentioned spring housing is located at above-mentioned reinforcing bar on the position between above-mentioned upper plate and the above-mentioned lower plate; Two free ends up and down of above-mentioned spring are corresponding respectively to be fixed on the end face of bottom surface and above-mentioned lower plate of above-mentioned upper plate; The line of centres of the axial line of above-mentioned spring and above-mentioned upper plate and above-mentioned lower plate is overlapped; And above-mentioned spring is positioned at above-mentioned sleeve, and the two ends up and down of above-mentioned sleeve are corresponding respectively to be connected on the end face of bottom surface and above-mentioned lower plate of above-mentioned upper plate.
2. soil pressure proving installation according to claim 1 is characterized in that: above-mentioned sleeve is the sleeve that geotextile is processed.
3. soil pressure proving installation according to claim 1 is characterized in that: the outer surface of upper of above-mentioned reinforcing bar is marked with scale.
4. soil pressure proving installation according to claim 1 is characterized in that: above-mentioned upper plate and above-mentioned lower plate are respectively circular steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202423110U CN202177475U (en) | 2011-07-08 | 2011-07-08 | Soil pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202423110U CN202177475U (en) | 2011-07-08 | 2011-07-08 | Soil pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202177475U true CN202177475U (en) | 2012-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202423110U Expired - Fee Related CN202177475U (en) | 2011-07-08 | 2011-07-08 | Soil pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202177475U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063344A (en) * | 2012-12-18 | 2013-04-24 | 湖州杭华油墨科技有限公司 | Anti-sticking detecting instrument |
| CN104075944A (en) * | 2014-07-18 | 2014-10-01 | 新乡学院 | Three dimensional earth pressure testing device and assembly computing method based on general earth pressure cells and rhombic dodecahedron |
| CN106706029A (en) * | 2016-11-14 | 2017-05-24 | 中铁二十四局集团有限公司 | Underground structure construction-oriented soil performance monitoring device and working method thereof |
| CN112629735A (en) * | 2020-12-10 | 2021-04-09 | 西南交通大学 | Three-dimensional soil pressure measuring device for model test and using method thereof |
-
2011
- 2011-07-08 CN CN2011202423110U patent/CN202177475U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063344A (en) * | 2012-12-18 | 2013-04-24 | 湖州杭华油墨科技有限公司 | Anti-sticking detecting instrument |
| CN104075944A (en) * | 2014-07-18 | 2014-10-01 | 新乡学院 | Three dimensional earth pressure testing device and assembly computing method based on general earth pressure cells and rhombic dodecahedron |
| CN106706029A (en) * | 2016-11-14 | 2017-05-24 | 中铁二十四局集团有限公司 | Underground structure construction-oriented soil performance monitoring device and working method thereof |
| CN106706029B (en) * | 2016-11-14 | 2020-08-21 | 中铁二十四局集团有限公司 | Soil body performance monitoring device for underground structure construction and working method thereof |
| CN112629735A (en) * | 2020-12-10 | 2021-04-09 | 西南交通大学 | Three-dimensional soil pressure measuring device for model test and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20120708 |