CN106525579A - In-situ detecting device based on collapsible loess - Google Patents
In-situ detecting device based on collapsible loess Download PDFInfo
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- CN106525579A CN106525579A CN201510881544.8A CN201510881544A CN106525579A CN 106525579 A CN106525579 A CN 106525579A CN 201510881544 A CN201510881544 A CN 201510881544A CN 106525579 A CN106525579 A CN 106525579A
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- frame plate
- collapsible loess
- device based
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Abstract
The invention discloses an in-situ detecting device based on collapsible loess. The in-situ detecting device based on collapsible loess comprises a frame plate, a cooling device, a pressure device, a thickness detecting device and a control system, wherein the cooling device is clamped on the frame plate in an inlaid manner; the pressure device is arranged above the frame plate and can apply a downward pressure to the frame plate; the thickness detecting device is arranged below the frame plate; and the pressure device and the thickness detecting device are connected with the control system through data transmission lines. The in-situ detecting device based on collapsible loess is simple in structure, flexible to use, high in measurement precision and high in degree of automation; measurement results are directly corrected by a system and can directly guide the design; and therefore, the working efficiency is improved greatly.
Description
Technical field
The invention belongs to detection means field, is related to a kind of in situ detection device based on collapsible loess.
Background technology
Collapsible loess is that, under the weight stress effect of upper overburden layer, or under weight stress and additional stress collective effect, notable additional deformation occurs because of the structural deterioration of soil after immersion, belongs to special soils.Its soil property is more uniform, short texture, pores'growth.When water-soaked is not received, common intensity is higher, and compressibility is less.When can destroy rapidly by water-soaked, soil structure, larger additional sinking is produced, intensity is reduced rapidly.Therefore, it is the important process before being built on Loess Site to study collapsible loess thickness position, to prevent damp sink of foundation from producing harm to building.
The content of the invention
In view of this, it is an object of the invention to provide a kind of simple structure, easily can measure collapsible loess thickness position detection means.
For reaching above-mentioned purpose, the present invention provides following technical scheme：A kind of in situ detection device based on collapsible loess, including frame plate, chiller, pressure apparatus, thick level detecting apparatus and control system；The chiller inlay card is on frame plate, the pressure apparatus is arranged on above frame plate and can apply downward pressure to frame plate, the thick level detecting apparatus are arranged on below frame plate, and the pressure apparatus and thick level detecting apparatus are connected with control system by data line.
Further, the thick level detecting apparatus include several sensing integrated unit compositions being in series.
Further, the sensing integrated unit includes induction coil, permanent magnet and Hall element, and the permanent magnet is arranged in induction coil, and the Hall element is arranged on permanent magnet.
Further, the pressure apparatus is hydraulic cylinder, cylinder or jack.
The beneficial effects of the present invention is：The simple structure, using flexible, can change environment before installing, to reduce the measured deviation brought because of uncertain factor according to practical situation；Certainty of measurement is high, and high degree of automation, measurement result Jing system are directly corrected, can direct design, greatly improve work efficiency.
Description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and illustrates：
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As illustrated, the in situ detection device based on collapsible loess of the present invention, including frame plate 1, chiller 2, pressure apparatus 3, thick level detecting apparatus 4 and control system；2 inlay card of the chiller is on frame plate 1, the pressure apparatus 3 is arranged on above frame plate 1 and can apply downward pressure to frame plate 1, the thick level detecting apparatus 4 are arranged on below frame plate 1, and the pressure apparatus 3 and thick level detecting apparatus 4 are connected with control system by data line.
Specifically, thick level detecting apparatus 4 are imbedded in collapsible loess to be measured, frame plate 1 is attached to collapsible loess surface to be measured with the chiller 2 being embedded on frame plate 1, cooled down by chiller 2 and collapsible loess area to be measured is freezed, now, mounted thick level detecting apparatus 4 are zeroed, loess area to be frozen is replied before installing after state again by applying downward pressure being detected, integrity and the reliability of detection data can be ensured, the quality level of detection is improve.Simultaneously as chiller is located at loess surface to be measured, so as to not interfere with the accuracy of test data.
In the present embodiment, the chiller 2 includes the cooling coil and the thermometer for measuring loess temperature around cooling coil of condenser and condenser series winding setting, the condenser is provided with for exporting the outlet I of cooling medium and reclaiming the entrance I of cooling medium, the cooling coil is provided with the entrance II being connected with outlet I and the outlet II being connected with entrance I, the cooling coil encompasses disk and inlay card is between frame plate, and the thermometer is detachably mounted on cooling coil.Condenser in chiller 2 can start according to actual needs, using flexible；Thermometer can real-time monitoring collapsible loess temperature, prevent from reducing too low further causing new error component because of temperature.
The further improvement of such scheme, the thick level detecting apparatus 4 are mainly made up of several sensing integrated units being in series.Sensing integrated unit in the present embodiment includes induction coil, permanent magnet and Hall element, and the permanent magnet is arranged in induction coil, and the Hall element is arranged on permanent magnet.During actual monitoring, each buried sensing integrated unit deformation synchronous with surrounding loess, the relative shift between wantonly two neighboring sensors integrated unit are just approximately equal to the relative vertical displacement amount of underground correspondence depths.It is d=d1+d2+ ...+dn that total displacement amount is equal to the displacement sum of each sensing unit, i.e. total displacement amount.The sensing integrated unit is not in stress relaxation when underground displacement is transmitted and the problems such as distortion inaccuracy is accumulated, and simple structure, certainty of measurement are high.
Pressure apparatus 3 in the present embodiment is jack；Certainly, this purpose can equally be realized using hydraulic cylinder, cylinder or other equipment with pressure effect.
What is finally illustrated is, preferred embodiment above is only to illustrate technical scheme and unrestricted, although being described in detail to the present invention by above preferred embodiment, but skilled artisan would appreciate that, various changes can be made in the form and details to which, without departing from claims of the present invention limited range.
Claims (4)
1. a kind of in situ detection device based on collapsible loess, it is characterised in that：Including frame plate, chiller, pressure apparatus, thick level detecting apparatus and control system；The chiller inlay card is on frame plate, the pressure apparatus is arranged on above frame plate and can apply downward pressure to frame plate, the thick level detecting apparatus are arranged on below frame plate, and the pressure apparatus and thick level detecting apparatus are connected with control system by data line.
2. the in situ detection device based on collapsible loess according to claim 1, it is characterised in that：The thick level detecting apparatus include several sensing integrated units being in series.
3. the in situ detection device based on collapsible loess according to claim 2, it is characterised in that：The sensing integrated unit includes induction coil, permanent magnet and Hall element, and the permanent magnet is arranged in induction coil, and the Hall element is arranged on permanent magnet.
4. the in situ detection device based on collapsible loess according to claim 1, it is characterised in that：The pressure apparatus is hydraulic cylinder, cylinder or jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881544.8A CN106525579A (en) | 2015-12-03 | 2015-12-03 | In-situ detecting device based on collapsible loess |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881544.8A CN106525579A (en) | 2015-12-03 | 2015-12-03 | In-situ detecting device based on collapsible loess |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106525579A true CN106525579A (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510881544.8A Pending CN106525579A (en) | 2015-12-03 | 2015-12-03 | In-situ detecting device based on collapsible loess |
Country Status (1)
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| CN (1) | CN106525579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989993A (en) * | 2017-05-22 | 2017-07-28 | 中铁西北科学研究院有限公司 | A kind of coefficient of collapsibility of loess layering in-situ testing device and method of testing |
-
2015
- 2015-12-03 CN CN201510881544.8A patent/CN106525579A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989993A (en) * | 2017-05-22 | 2017-07-28 | 中铁西北科学研究院有限公司 | A kind of coefficient of collapsibility of loess layering in-situ testing device and method of testing |
| CN106989993B (en) * | 2017-05-22 | 2023-08-11 | 嘉兴学院 | Loess collapse coefficient layering in-situ test device and test method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |