CN204536073U - A kind of device preparing unidirectional Frozen-thawed cycled soil sample - Google Patents
A kind of device preparing unidirectional Frozen-thawed cycled soil sample Download PDFInfo
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- CN204536073U CN204536073U CN201520192605.5U CN201520192605U CN204536073U CN 204536073 U CN204536073 U CN 204536073U CN 201520192605 U CN201520192605 U CN 201520192605U CN 204536073 U CN204536073 U CN 204536073U
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Abstract
The utility model relates to a kind of device preparing unidirectional Frozen-thawed cycled soil sample.It is characterized in that the cooling and warming circulation system provides cold and heat source for constant temperature oven interior environment temperature, constant temperature oven inwall is lined with cabinet insulation material; The bottom of cylindrical soil sample is lined with weeping rock, and surrounding and bottom are all wrapped up by sample insulation material; Water bottle is communicated with filling pipe and is connected with drainpipe and draining bottle by weeping rock, filling pipe is equipped with water pressure gauge and moisturizing valve; Environment temperature sensor and specimen temperature sensor are placed in soil sample freezing room and in soil sample respectively, and are connected with data collecting instrument by wire, and data collecting instrument is connected with notebook computer again.The utility model can use at low temperatures and can make multiple sample simultaneously; With moisturizing, drainage arrangement, can moisturizing in soil sample freezing process be given, better reach water translocation, gather the object with frost heave; Can Real-Time Monitoring sample inside and environment temperature.After multigelation circulation, made soil sample is closer to natural formation nature soil sample.
Description
Technical field
The utility model relates to a kind of device preparing unidirectional Frozen-thawed cycled soil sample.
Background technology
Under state of nature condition, by the impact of Atmosphere changes, can there is the freeze and thaw of over one hundred time in earth's surface ground, this influence process belongs to the impact of unidirectional temperature variation on the soil body.And unidirectional Frozen-thawed cycled, it can cause soil structure, character all to have greatly changed, and the engineering properties change of these soil directly can have influence on the stable of ground and upper building, and this is also one of main reason of destroying of cold regions engineering.Soil sample is in frozen-thaw process, and soil sample internal moisture is freezed volumetric expansion to occur, and moves to freezing zone; In melting process, ice is converted into water, redistributes in the soil body.Under unfreezing, sample water cut and dry density redistribution, cause the structure of sample and homogeneity to change.Along with the difference of freezing-thawing cycles, also can there is different changes in the character of its soil.
In order to study the Changing Pattern of soil under different number of freezing and thawing, convenient under identical temperature changing environment, realize the Frozen-thawed cycled number of times Frozen-thawed cycled different from Multi-example that many parallel sample unify number of times.Therefore a kind of unidirectional freeze thawing device is needed, the surrounding of multiple (or single) cylindrical soil sample and bottom are wrapped up with the insulation material that heat-proof quality is good, put it in cryogenic freezing thermostatic box, thus ensure a kind of Frozen-thawed cycled method for making sample only carrying out heat interchange at sample top.
Summary of the invention
In view of above-mentioned, the purpose of this utility model aims to provide a kind of device preparing unidirectional Frozen-thawed cycled soil sample.To under identical temperature changing environment, realize the Frozen-thawed cycled number of times Frozen-thawed cycled different from Multi-example that many parallel sample unify number of times.Unify, in the Frozen-thawed cycled process of number of times, parallel sample all to be put into wherein in many parallel sample, after sample experience stipulated number Frozen-thawed cycled, all take out and carry out parallel testing test.In Multi-example different number of times Frozen-thawed cycled process, parallel sample all put into wherein, carry out Frozen-thawed cycled to sample, the sample reaching stipulated number takes out test, and remaining sample continues freeze thawing, until all samples reach the freezing-thawing cycles drafted.This device is positioned in the mould made by the good insulation material of heat-proof quality by multiple (or single) cylindrical soil sample, its surrounding and bottom is made not to carry out heat interchange with environment, put it in cryogenic freezing thermostatic box, thus ensure at low temperatures, only carry out heat interchange at sample top, multigelation circulation a kind of making is repeatedly freezed or melts the method for soil sample.
The purpose of this utility model is achieved in that
Prepare a device for unidirectional Frozen-thawed cycled soil sample, be made up of the cooling and warming circulation system, environment temperature sensor, constant temperature oven, cabinet insulation material, specimen temperature sensor, cylindrical soil sample, wire, notebook computer, data collecting instrument, water bottle, moisturizing valve, water pressure gauge, sample insulation material, draining bottle, drainpipe, weeping rock, filling pipe.The cooling and warming circulation system provides cold and heat source for constant temperature oven interior environment temperature, and constant temperature oven inwall is lined with cabinet insulation material; The bottom of cylindrical soil sample is lined with weeping rock, and surrounding and bottom are all wrapped up by sample insulation material, and water bottle is communicated with filling pipe and is connected with drainpipe and draining bottle by weeping rock, filling pipe is equipped with water pressure gauge and moisturizing valve; Environment temperature sensor and specimen temperature sensor are placed in soil sample freezing room and in soil sample respectively, and are connected with data collecting instrument by wire, and data collecting instrument is connected with notebook computer again.
The beneficial effect of advantage of the present utility model and generation is:
1, the utility model adopts the cooling and warming circulation system to be constant temperature oven environment greenhouse cooling or intensification, realizes thawing circulation, and can carry out the making of many group Frozen-thawed cycled soil samples in constant temperature oven casing simultaneously.Can realize under identical temperature changing environment, many parallel sample unify the Frozen-thawed cycled number of times Frozen-thawed cycled different from Multi-example of number of times.
2, the utility model is with moisturizing, drainage arrangement, can reach the object of moisturizing in sample frozen-thaw process, moisture free migration in Frozen-thawed cycled process, better simulating nature circle soil sample.
3, the utility model is with device for monitoring temperature; Utilize data collecting instrument and notebook computer can the inner and controllable temperature constant temperature enclosure environment temperature of Real-Time Monitoring soil sample, better can monitor the relation between permafrost change characteristic and temperature.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is constant temperature oven casing and moisturizing in Fig. 1, drainage arrangement structural representation.
Fig. 3 is close-up schematic view around cylindrical soil sample in Fig. 1.
Embodiment
The temperature-controlled box 3(ZL201110055580.0 that the utility model is used) can from main regulation temperature value, good constant-temperature effect, easy to operate; Data collecting instrument 9 selects the DT80 data collecting instrument of Australian dataTaker company, coordinates data acquisition software 8 image data;
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further again:
As Fig. 1-3 shows, a kind of device preparing unidirectional Frozen-thawed cycled soil sample forms test ambient temperature control device by cooling and warming cyclic system 1, environment temperature sensor 2, constant temperature oven 3, cabinet insulation material 4; Water bottle 10, moisturizing valve 11, water pressure gauge 12, draining bottle 14, drainpipe 15, weeping rock 16, filling pipe 17 form moisturizing drainage arrangement; Environment temperature sensor 2, specimen temperature sensor 5, wire 7, notebook computer 8, data collecting instrument 9 form experimental data acquisition monitoring device; Soil sample heat-proof device is made up of cylindrical soil sample 6, sample insulation material 13.The cooling and warming circulation system 1 provides cold and heat source for constant temperature oven 3 interior environment temperature, and constant temperature oven 3 inwall is lined with cabinet insulation material 4; The bottom of cylindrical soil sample 6 is lined with weeping rock 16, and surrounding and bottom are all wrapped up by sample insulation material 13, and water bottle 10 is communicated with filling pipe 17 and is connected with drainpipe 15 and draining bottle 14 by weeping rock 16, filling pipe 17 is equipped with water pressure gauge 12 and moisturizing valve 11; Environment temperature sensor 2 and specimen temperature sensor 5 are placed in soil sample freezing room and in soil sample 6 respectively, and are connected with data collecting instrument 9 by wire 7, and data collecting instrument 9 is connected with notebook computer 8 again.
The cooling and warming circulation system 1 gives constant temperature oven 3 internal cooling or intensification, and realize the Frozen-thawed cycled process of soil sample, constant temperature oven 3 inwall is lined with PVC insulation material 4, ensure that box interior temperature is stablized; Water bottle 10 is communicated with filling pipe 17 and is connected with drainpipe 15 and draining bottle 14 by weeping rock 16, filling pipe 17 is equipped with water pressure gauge 12 and moisturizing valve 11, can require setting hydraulic pressure according to sample preparation.It is to the moisturizing of cylindrical soil sample 6 that water bottle 10 is communicated with filling pipe 17 by weeping rock 16, by filling pipe 17, water bottle 10 water is passed into weeping rock 16, thus reach the object of cylindrical soil sample 6 moisturizing, moisturizing valve 11 can control switching and the hydraulic pressure size of moisturizing, and water pressure gauge 12 can show current moisturizing hydraulic pressure in real time.Unnecessary water is discharged outside constant temperature oven 3 by drainpipe 15; Environment temperature sensor 2 and specimen temperature sensor 5 are placed in constant temperature oven 3 and in cylindrical soil sample 6 respectively, and are connected with data collecting instrument 9 by wire 7, and data collecting instrument 9 is connected with notebook computer 8 again.Environment temperature sensor 2 feeds back actual environment temperature value to control constant temperature oven 3 temperature, Real-time Collection cylindrical sample 6 internal temperature and constant temperature oven 3 ambient temperature value; The PVC sample insulation material 13 that soil sample heat-proof device adopts by the surrounding of cylindrical soil sample 6 and bottom surface parcel, thus ensures that freeze thawing only occurs from sample 6 top, realizes Unidirectional Freezing.Imbedding sample temperature sensor 5 in cylindrical soil sample 6 can the change of Real-Time Monitoring cylindrical soil sample 6 internal temperature.
The utility model can use at low temperatures, and with moisturizing, drainage arrangement, can give moisturizing in soil sample frozen-thaw process; The repeatedly unidirectional Frozen-thawed cycled simultaneously can preparing multiple (or single) cylindrical soil sample freezes soil sample or melts the making of soil sample; Can Real-Time Monitoring sample inside and environment temperature.After multigelation circulation, made soil sample is closer to natural formation nature soil sample.
Claims (1)
1. prepare the device of unidirectional Frozen-thawed cycled soil sample for one kind, by the cooling and warming circulation system (1), environment temperature sensor (2), constant temperature oven (3), cabinet insulation material (4), specimen temperature sensor (5), cylindrical soil sample (6), wire (7), notebook computer (8), data collecting instrument (9), water bottle (10), moisturizing valve (11), water pressure gauge (12), sample insulation material (13), draining bottle (14), drainpipe (15), weeping rock (16), filling pipe (17) forms, it is characterized in that the cooling and warming circulation system (1) provides cold for constant temperature oven (3) interior environment temperature, thermal source, constant temperature oven (3) inwall is lined with cabinet insulation material (4), the bottom of cylindrical soil sample (6) is lined with weeping rock (16), and surrounding and bottom are all wrapped up by sample insulation material (13), water bottle (10) is communicated with filling pipe (17) and is connected with drainpipe (15) and draining bottle (14) by weeping rock (16), filling pipe (17) is equipped with water pressure gauge (12) and moisturizing valve (11), environment temperature sensor (2) and specimen temperature sensor (5) are placed in soil sample freezing room and in soil sample (6) respectively, and are connected with data collecting instrument (9) by wire (7), and data collecting instrument (9) is connected with notebook computer (8) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192605.5U CN204536073U (en) | 2015-04-01 | 2015-04-01 | A kind of device preparing unidirectional Frozen-thawed cycled soil sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192605.5U CN204536073U (en) | 2015-04-01 | 2015-04-01 | A kind of device preparing unidirectional Frozen-thawed cycled soil sample |
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| Publication Number | Publication Date |
|---|---|
| CN204536073U true CN204536073U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520192605.5U Expired - Fee Related CN204536073U (en) | 2015-04-01 | 2015-04-01 | A kind of device preparing unidirectional Frozen-thawed cycled soil sample |
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| CN (1) | CN204536073U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749011A (en) * | 2015-04-01 | 2015-07-01 | 中国科学院寒区旱区环境与工程研究所 | Preparation device of one-way freezing and thawing cycle soil sample |
| CN106526129A (en) * | 2016-10-26 | 2017-03-22 | 中国地震局工程力学研究所 | One-way freezing-thawing natural water replenishing device |
| CN106680129A (en) * | 2017-02-24 | 2017-05-17 | 新华水力发电有限公司 | Dry-wet-freeze-thaw cycle environment simulation and damage and deterioration test device and method for rock sample |
-
2015
- 2015-04-01 CN CN201520192605.5U patent/CN204536073U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749011A (en) * | 2015-04-01 | 2015-07-01 | 中国科学院寒区旱区环境与工程研究所 | Preparation device of one-way freezing and thawing cycle soil sample |
| CN106526129A (en) * | 2016-10-26 | 2017-03-22 | 中国地震局工程力学研究所 | One-way freezing-thawing natural water replenishing device |
| CN106680129A (en) * | 2017-02-24 | 2017-05-17 | 新华水力发电有限公司 | Dry-wet-freeze-thaw cycle environment simulation and damage and deterioration test device and method for rock sample |
| CN106680129B (en) * | 2017-02-24 | 2019-08-02 | 新华水力发电有限公司 | Rock sample recycles the simulation of dry and wet freezing-thawing and damage deterioration test device |
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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: 20150805 Termination date: 20160401 |