CN204422316U - A kind of unsaturated soil consolidation testing device - Google Patents
A kind of unsaturated soil consolidation testing device Download PDFInfo
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- CN204422316U CN204422316U CN201520005105.6U CN201520005105U CN204422316U CN 204422316 U CN204422316 U CN 204422316U CN 201520005105 U CN201520005105 U CN 201520005105U CN 204422316 U CN204422316 U CN 204422316U
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Abstract
A kind of unsaturated soil consolidation testing device, comprise the sample box (2) on stand (1), stand table top, loading system sample box (2) being applied to vertical load, the pottery clay plates (3) of sample box (2) bottom and the graduated cylinder of below thereof, its design feature is: be tightly connected between the upper cover (2a) of described sample box (2) and the box body of test box (2), upper cover (2a) is provided with multiple valve (2b), and each valve (2b) is all connected with air compressor (5) by tracheae (4).This apparatus structure is simple, and low cost of manufacture, reliability is high.
Description
Technical field
The utility model relates to a kind of unsaturated soil consolidation testing device.
Background technology
The compression deformation of foundation soil, the sedimentation and deformation of embankment and stability thereof are concerning the safety of buildings and structures and serviceable life, and the distortion of ground, embankment and stable be all produce due to the compression of soil skeleton and the change of void ratio after all, all relevant with the time, be a consolidation deformation process.But the soil in engineering is often due to atmospheric environment effects such as rainfall infiltration, evaporation and plant transpirations, is usually in unsaturated state, namely belongs to unsaturated soil.For guaranteeing the safety of buildings and structures, need to measure the consolidation deformation feature (i.e. ground and embankment vertical deformation change in time, the relation of air pressure, moisture) of unsaturated soil.
The instrument of the consolidation deformation feature of current mensuration unsaturated soil is non-consolidation of saturated soil instrument, its structure and principle of work are: soil sample is positioned in the sample box in rack base, sample box covers by double pressure cover, blasts by extraneous air compressor the atmospheric pressure value that air makes to keep in cover setting in pressure shield; The vertical load bar hermetically passing pressure shield top of the loading system of pressure shield outside loads to sample box upper cover, realizes loading the vertical pressure of soil sample; In loading procedure, the water in soil sample is discharged downwards by the pottery clay plates bottom sample box, is concentrated in graduated cylinder.Measure the water in graduated cylinder, and measure the vertical deformation of soil sample by the dial gauge of vertical load bar.Thus measure the consolidation deformation feature of the unsaturated soil under different atmospheric pressure, vertical load condition.Its Problems existing is: need an air pressure cover sealed, the parts such as vertical load bar need again to penetrate air pressure cover and cause its complex structure, and sealing processing technology requires high, and cost is high, and reliability is low; Meanwhile, loading system is simple lever loading system, and the vertical pressure that can apply is limited.
Utility model content
The deficiency that the utility model exists for prior art, provides a kind of unsaturated soil consolidation testing device.This apparatus structure is simple, and low cost of manufacture, reliability is high.
The utility model realizes the technical scheme that its goal of the invention takes: a kind of unsaturated soil consolidation testing device, comprise the sample box on stand, stand table top, sample box applied to the graduated cylinder of pottery clay plates bottom the loading system of vertical load, sample box and below thereof, its design feature is: be tightly connected between the upper cover of described sample box and the box body of test box, on be covered with multiple valve, each valve is all connected with air compressor by tracheae.
Principle of work of the present utility model is:
Soil sample is positioned in the sample box on stand table top, covers sample box and be tightly connected with the upper cover of sample box; Air compressor blasts air by the tracheae be connected with the valve that described sample box covers in sample box, makes the atmospheric pressure value keeping setting in box; The piston of the vertical load bar registration coupon box cover of loading system loads, and realizes loading the vertical pressure of soil sample; Meanwhile, the pressure of sidewall makes the water in soil sample be discharged by the pottery clay plates bottom sample box, be concentrated in graduated cylinder downwards.Measure the water in graduated cylinder, and measure the vertical deformation of soil sample by the dial gauge of vertical load bar.Thus soil sample consolidation deformation feature under measuring different atmospheric pressure, vertical load condition.
Further, loading system described in the utility model is double lever loading system, it is specifically formed: have left connecting link between the left front vertical rod of stand and left back vertical rod, outstanding scale pan under the left part of lower lever is articulated with the right part of the middle part of left connecting link, lower lever; Upper lever is positioned at the top of lower lever, and the left part of upper lever and the left portion of lower lever are articulated and connected by transmission rod; Right connecting link is had between the right front vertical rod of stand and right back vertical rod, the right part of upper lever is articulated with the middle part of right connecting link, the connecting hole of the right middle of upper lever is installed with sill, the front-end and back-end of sill are fixedly connected with the lower end of front power transmission column with rear power transmission column respectively, front power transmission column is fixedly connected with the front-end and back-end of entablature respectively with the upper end of rear power transmission column, the middle part of entablature bottom surface is connected with vertical load bar downwards, the piston of vertical load bar registration coupon lid.
The principle of work of double lever loading system is:
Under described lower lever, outstanding scale pan place is apart from the horizontal range of lower lever and left connecting link hinged place, is lower lever and transmission rod hinged place apart from 12 times of horizontal range of lower lever and left connecting link hinged place; The horizontal range of described upper lever and transmission rod hinged place distance upper lever and right connecting link hinged place is 6 times of the horizontal range of upper lever and right connecting link hinged place distance upper lever bar and sill hinged place.After applying counterweight to scale pan, by the power of generation 12 times of counterweight weight on forward and backward power transmission column, put on the piston on sample box by the vertical load bar being fixed on entablature.
By double lever loading system, vertical load is applied to sample box, compare with existing simple lever loading system, identical counterweight weight can provide larger vertical on-load pressure, can measure the consolidation deformation feature of the unsaturated soil under larger vertical on-load pressure scope.
Further, the concrete structure that valve described in the utility model is all connected with air compressor by tracheae is: valve is connected with the valve on the tracheae of air compressor by nylon tube or rubber tube.Like this, connected mode is simple, flexibly.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 be the utility model embodiment face structural representation.
Fig. 2 is the side-looking structural representation of the utility model embodiment.
Embodiment
Embodiment
Fig. 1 Fig. 2 illustrates, a kind of unsaturated soil consolidation testing device, and comprise the graduated cylinder of pottery clay plates 3 bottom the sample box 2 on stand 1, stand table top, loading system sample box 2 being applied to vertical load, sample box 2 and below thereof, its design feature is:
Be tightly connected between the upper cover 2a of described sample box 2 and the box body of test box 2, upper cover 2a is provided with multiple valve 2b, and each valve 2b is all connected with air compressor 5 by tracheae 4;
Loading system in this example is double lever loading system, and it specifically forms and is: have left connecting link between the left front vertical rod of stand 1 and left back vertical rod, outstanding scale pan 7 under the left part of lower lever 6 is articulated with the right part of the middle part of left connecting link, lower lever 6; Upper lever 8 is positioned at the top of lower lever 6, and the left part of upper lever 8 and the left portion of lower lever 6 are articulated and connected by transmission rod 9; Right connecting link is had between the right front vertical rod of stand 1 and right back vertical rod, the right part of upper lever 8 is articulated with the middle part of right connecting link, the connecting hole of the right middle of upper lever 8 is installed with sill 10, the front-end and back-end of sill 10 are fixedly connected with the lower end of front power transmission column 11 with rear power transmission column 12 respectively, front power transmission column 11 is fixedly connected with the front-end and back-end of entablature 13 respectively with the upper end of rear power transmission column 12, the middle part of entablature 13 bottom surface is connected with vertical load bar 14 downwards, the piston 2c of vertical load bar 14 registration coupon lid 2a.
The concrete structure that in this example, valve 2b is all connected with air compressor 5 by tracheae 4 is: valve 2b is connected with the valve on the tracheae of air compressor 5 by nylon tube or rubber tube.
Claims (3)
1. a unsaturated soil consolidation testing device, comprise the sample box (2) on stand (1), stand table top, loading system sample box (2) being applied to vertical load, the pottery clay plates (3) of sample box (2) bottom and the graduated cylinder of below thereof, it is characterized in that:
Be tightly connected between the upper cover (2a) of described sample box (2) and the box body of test box (2), upper cover (2a) is provided with multiple valve (2b), and each valve (2b) is all connected with air compressor (5) by tracheae (4).
2. a kind of unsaturated soil consolidation testing device as claimed in claim 1, it is characterized in that: described loading system is double lever loading system, it is specifically formed: have left connecting link between the left front vertical rod of stand (1) and left back vertical rod, outstanding scale pan (7) under the left part of lower lever (6) is articulated with the right part of the middle part of left connecting link, lower lever (6), upper lever (8) is positioned at the top of lower lever (6), and the left part of upper lever (8) and the left portion of lower lever (6) are articulated and connected by transmission rod (9), right connecting link is had between the right front vertical rod of stand (1) and right back vertical rod, the right part of upper lever (8) is articulated with the middle part of right connecting link, the connecting hole of the right middle of upper lever (8) is installed with sill (10), the front-end and back-end of sill (10) are fixedly connected with the lower end of front power transmission column (11) with rear power transmission column (12) respectively, front power transmission column (11) is fixedly connected with the front-end and back-end of entablature (13) respectively with the upper end of rear power transmission column (12), the middle part of entablature (13) bottom surface is connected with vertical load bar (14) downwards, the piston (2c) of vertical load bar (14) registration coupon lid (2a).
3. a kind of unsaturated soil consolidation testing device as claimed in claim 1, is characterized in that: the concrete structure that described valve (2b) is all connected with air compressor (5) by tracheae (4) is: valve (2b) is connected with the valve on the tracheae of air compressor (5) by nylon tube or rubber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005105.6U CN204422316U (en) | 2014-10-24 | 2015-01-06 | A kind of unsaturated soil consolidation testing device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626365 | 2014-10-24 | ||
| CN2014206263650 | 2014-10-24 | ||
| CN201520005105.6U CN204422316U (en) | 2014-10-24 | 2015-01-06 | A kind of unsaturated soil consolidation testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204422316U true CN204422316U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520005105.6U Expired - Fee Related CN204422316U (en) | 2014-10-24 | 2015-01-06 | A kind of unsaturated soil consolidation testing device |
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| Country | Link |
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| CN (1) | CN204422316U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289984A (en) * | 2016-08-02 | 2017-01-04 | 广西大学 | A kind of consolidation apparatus of the facial charger of independence |
| CN106644746A (en) * | 2016-12-07 | 2017-05-10 | 山西省交通科学研究院 | Measurement device and method of consolidation and deformation of soil body under vacuum pre-pressing effect |
| CN111521486A (en) * | 2020-04-21 | 2020-08-11 | 中国科学院武汉岩土力学研究所 | On-site consolidation experiment table |
-
2015
- 2015-01-06 CN CN201520005105.6U patent/CN204422316U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289984A (en) * | 2016-08-02 | 2017-01-04 | 广西大学 | A kind of consolidation apparatus of the facial charger of independence |
| CN106644746A (en) * | 2016-12-07 | 2017-05-10 | 山西省交通科学研究院 | Measurement device and method of consolidation and deformation of soil body under vacuum pre-pressing effect |
| CN111521486A (en) * | 2020-04-21 | 2020-08-11 | 中国科学院武汉岩土力学研究所 | On-site consolidation experiment table |
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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 |
Granted publication date: 20150624 Termination date: 20180106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |