CN203758568U - Volume change pipe and unsaturated soil consolidometer - Google Patents
Volume change pipe and unsaturated soil consolidometer Download PDFInfo
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- CN203758568U CN203758568U CN201420065409.7U CN201420065409U CN203758568U CN 203758568 U CN203758568 U CN 203758568U CN 201420065409 U CN201420065409 U CN 201420065409U CN 203758568 U CN203758568 U CN 203758568U
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- pipe
- becomes
- volume change
- tube body
- change pipe
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Abstract
The utility model relates to a volume change pipe used for measuring volume change of water in unsaturated soil. The volume change pipe comprises a volume change pipe body (2), a volume change pipe left-end joint (1) and a volume change pipe right-end joint (4), the volume change pipe left-end joint (1) is arranged at the left end of the volume change pipe body (2), the volume change pipe right-end joint (4) is arranged at the right end of the volume change pipe body (2) which further comprises a piston (3), the piston (3) is arranged inside the volume change pipe body (2) in a free movement manner and perpendicular to a central axis of the volume change pipe body (2), and the outer edge of the piston (3) is in full contact with the inner wall of the volume change pipe body (2) to have the volume change pipe body (2) partitioned into two mutually-isolated parts. The utility model further comprises an unsaturated soil consolidometer comprising the volume change pipe. The volume change pipe and the unsaturated soil consolidometer are simple in structure, easy to manufacture, low in cost, convenient to use and broad in application prospect.
Description
Technical field
The utility model belongs to and measures the technical field of device that water volume changes, and becomes pipe in particular to a kind of body for the variation that measures unsaturated soil soil water volume.
Background technology
In the current measurement soil body, water volume variation is mainly to become pipe with body, and the reading that becomes pipe by body is determined the variation of testing soil water content.But because one end of body change pipe contacts with atmosphere, will certainly cause that body becomes evaporation of water in pipe, if the one end contacting with atmosphere is sealed with gas permeable material, also can make Guan Zhongshui evaporation and then on tube wall, condense into little water droplet, thereby affecting error.Use oil sealing, but due to oil and water interface along with the lifting of Guan Zhongshui thickens, also can cause reading error.Especially for unsaturated soil, experimental period is very long, and the evaporation capacity causing is also very large, causes error very large.
Before the utility model, there is not effective method to solve the problems referred to above, measure except being specifically designed to the body change instrument that water volume changes, but its structure is too complicated, manufacturing expense is too high, often can not get applying on a large scale.
Utility model content
In order to overcome deficiency of the prior art, the utility model provides a kind of can solution because moisture evaporation causes the body of error to become pipe.
For achieving the above object, the technical solution of the utility model is: a kind of body change pipe changing for measuring unsaturated soil water volume is provided, comprise that body becomes tube body, body becomes pipe left end joint and body becomes pipe right-hand member joint, described body change pipe left end joint is arranged on the left end of described body change tube body, described body change pipe right-hand member joint is arranged on the right-hand member of described body change tube body, described body becomes tube body and also comprises piston, described piston is moved freely to the inside that is arranged on described body change tube body, and become the central shaft of tube body perpendicular to described body, the outward flange of described piston fully contacts with the inwall that described body becomes tube body, described body is become to tube body and be separated into isolated two parts mutually.
Preferably, also comprise left end valve and right-hand member valve, described left end valve and right-hand member valve are arranged on respectively the two ends of described body change tube body.
Preferably, described body becomes tube body with scale.
Preferably, described body change pipe left end joint is connected with the drainpipe of the pottery clay plates bottom of unsaturated soil consolidometer.
Preferably, described body change pipe right-hand member joint is connected with the tank that a floorage becomes the sectional area of tube body much larger than described body.
Preferably, in described tank, water is housed, the middle part of the soil sample of the water liquid level in described tank and described unsaturated soil consolidometer maintains an equal level.
Preferably, described and body become drainpipe that tube body is connected into become the flexible pipe that pipe can exhaust by the described body that tilts.
The utility model also provides a kind of unsaturated soil consolidometer, comprise that above-mentioned body becomes pipe, also comprise tank, vertical deformation scale, air-pressure chamber, sample, be with valvular drainpipe, support, counterweight, top connects pneumatic shuttle, vertical piston rod, pressurization copper coin, permeable stone, sidepiece connects pneumatic shuttle, pottery clay plates, spiral kerve and the drainpipe being connected with body change pipe, described vertical deformation scale is fixed on support, the tip of described vertical deformation scale contacts with described air-pressure chamber, described air-pressure chamber connects pneumatic shuttle with sidepiece and is connected, described air-pressure chamber inside is provided with spiral kerve from top to bottom successively, pottery clay plates, sample, permeable stone, pressurization copper coin and vertical piston rod, on described vertical piston rod, be connected to top and connect pneumatic shuttle, and be connected with described support, described counterweight is located at the lower end of described support, the lower end of the spiral kerve described in the described drainpipe being connected with valvular drainpipe with body change pipe is located at.
The utility model can also be used for solving saturated triaxial rheology and test while measuring body change because moisture evaporates the error causing.Also can be used for reducing the error that in common saturated triaxial shear test, body variable is surveyed.
The beneficial effects of the utility model:
Changed original body become pipe in measurement process because moisture evaporates the error causing, the utility model becomes by body the variation that in pipe, soil water volume is measured in the movement of piston, has simple in structure, easily manufacture, advantage with low cost, practical and convenient, to have a extensive future.
Brief description of the drawings
Fig. 1 is the structural representation that the unsaturated soil consolidometer of the body change pipe of this utility model is housed.
Fig. 2 is the structural representation that the body of utility model becomes pipe.
In figure: 1, body becomes pipe left end joint; 2, body becomes tube body; 3, piston; 4, body becomes pipe right-hand member interface; 5, body becomes pipe left end valve; 6, body becomes pipe right-hand member valve; 7, tank; 8, vertical deformation scale; 9, air-pressure chamber; 10, sample; 11, be with valvular drainpipe; 12, support; 13, counterweight; 14, connect pneumatic shuttle; 15, vertical piston rod; 16, pressurization copper coin; 17, permeable stone; 18, connect pneumatic shuttle; 19, pottery clay plates; 20, spiral kerve; 21, become with body the drainpipe that pipe is connected.
Embodiment
For making object and the technical scheme of the utility model embodiment clearer, below in conjunction with the accompanying drawing of the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiment.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite without creative work, belongs to the scope that the utility model is protected.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the utility model under the identical meaning of the general understanding of those of ordinary skill in field.Should also be understood that such as those terms that define in general dictionary and should be understood to have the meaning consistent with meaning in the context of prior art, unless and definition as here, can not explain by idealized or too formal implication.
As depicted in figs. 1 and 2, the utility model comprises that body becomes pipe left end joint 1; Body becomes tube body 2; Piston 3; Body becomes pipe right-hand member interface 4; Body becomes pipe left end valve 5; Body becomes pipe right-hand member valve 6; Tank 7.Body becomes pipe left end joint 1 and is connected with the drainpipe 21 being connected with body change pipe of pottery clay plates 19 bottoms in unsaturation consolidometer, with body become the drainpipe 21 that is connected of pipe for the body change tube body 2 by described in tilting can exhaust flexible pipe, body becomes pipe right-hand member interface 4 and is connected with tank 7, the floorage of tank 7 becomes the sectional area of tube body 2 much larger than described body, in tank 7, water is housed, in groove, water liquid level and soil sample middle part maintain an equal level, and that is to say that the pore water pressure in soil sample is atmospheric pressure.Connect pneumatic shuttle 18 and 14 by control and apply certain air pressure, can control the matric suction of soil sample.The variation that can draw Water Content Tests in Soil Samples by the variation of water volume in original water percentage in soil sample and body change pipe, applies specific suction and obtains corresponding water percentage the native water characteristic curve that just can draw this sample.Piston 3 is arranged on to body and becomes the inside of tube body 2, and become the central shaft of tube body 2 perpendicular to body, the outward flange of piston 3 fully contacts with the inwall that body becomes tube body 2, body is become to tube body 2 and be separated into isolated two parts mutually.The water that body becomes piston 3 both sides in tube body 2 does not communicate, and can move freely left and right.When suction increases, draining in soil, promotes piston 3 and moves right; In the time that suction reduces, soil body water suction, 3, piston is moved to the left.
Body becomes pipe and adopts transparent glass material to make and be carved with scale, and the distance moving by piston 3 can converse soil sample water discharge and water absorbing capacity.Suction equalization needs the long period, and the water liquid level in tank 7 can manually be raised, and makes it keep highly flushing with soil sample middle part, and in tank 7, moisture evaporation measures without impact body change pipe.Left end valve 5 and right-hand member valve 6 are arranged on respectively the two ends of described body change tube body 2.
Using when this utility model, must ensure that body becomes in tube body 2 without bubble, if there is bubble, can become pipe left side valve 5 and body by body and become and manage right side valve 6 and respectively exhaust is carried out in piston both sides.This utility model has successfully solved because body becomes moisture evaporation in pipe and has caused error in measurement.
As shown in Figure 1, unsaturated soil consolidometer of the present utility model, comprises that body becomes pipe left end joint 1, body becomes tube body 2, piston 3, body becomes pipe right-hand member interface 4, body becomes pipe left end valve 5, body becomes pipe right-hand member valve 6, tank 7, vertical deformation scale 8, air-pressure chamber 9, sample 10, be with valvular drainpipe 11, support 12, counterweight 13, top connects pneumatic shuttle 14, vertical piston rod 15, pressurization copper coin 16, permeable stone 17, sidepiece connects pneumatic shuttle 18, pottery clay plates 19, spiral kerve 20 and the drainpipe 21 being connected with body change pipe, described vertical deformation scale 8 is fixed on support 12, the tip of described vertical deformation scale 8 contacts with described air-pressure chamber 9, described air-pressure chamber 9 connects pneumatic shuttle 18 with sidepiece and is connected, and described air-pressure chamber 9 inside are provided with spiral kerve 20 from top to bottom successively, pottery clay plates 19, sample 10, permeable stone 17, pressurization copper coin 16 and vertical piston rod 15, on described vertical piston rod 15, be connected to top and connect pneumatic shuttle 14, and be connected with described support 12, described counterweight 13 is located at the lower end of described support 12, the lower end of the spiral kerve 20 described in the described drainpipe 21 being connected with valvular drainpipe 11 with body change pipe is located at, body becomes tube body 2 and also comprises piston 3, described piston 3 is moved freely to the inside that is arranged on described body change tube body 2, and become the central shaft of tube body 2 perpendicular to described body, the outward flange of described piston 3 fully contacts with the inwall that described body becomes tube body 2, described body is become to tube body 2 and be separated into isolated two parts mutually.
These are only embodiment of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (8)
1. a body becomes pipe, being used for measuring unsaturated soil water volume changes, comprise that body becomes tube body (2), body becomes pipe left end joint (1) and body becomes pipe right-hand member joint (4), described body change pipe left end joint (1) is arranged on the left end of described body change tube body (2), described body change pipe right-hand member joint (4) is arranged on the right-hand member of described body change tube body (2), it is characterized in that, described body becomes tube body (2) and also comprises piston (3), described piston (3) is moved freely to the inside that is arranged on described body change tube body (2), and become the central shaft of tube body (2) perpendicular to described body, the outward flange of described piston (3) fully contacts with the inwall that described body becomes tube body (2), described body is become to tube body (2) and be separated into isolated two parts mutually.
2. a kind of body according to claim 1 becomes pipe, it is characterized in that, also comprise left end valve (5) and right-hand member valve (6), described left end valve (5) and right-hand member valve (6) are arranged on respectively the two ends of described body change tube body (2).
3. a kind of body according to claim 1 and 2 becomes pipe, it is characterized in that, described body becomes tube body (2) with scale.
4. a kind of body according to claim 1 becomes pipe, it is characterized in that, described body becomes pipe left end joint (1) and is connected with the drainpipe (21) of pottery clay plates (19) bottom of unsaturated soil consolidometer.
5. a kind of body according to claim 4 becomes pipe, it is characterized in that, described body becomes pipe right-hand member joint (4) and is connected with the tank (7) that a floorage becomes the sectional area of tube body (2) much larger than described body.
6. a kind of body according to claim 5 becomes pipe, it is characterized in that, in described tank (7), water is housed, and the middle part of the soil sample of the water liquid level in described tank (7) and described unsaturated soil consolidometer maintains an equal level.
7. become pipe according to a kind of body described in any one in claim 4-6, it is characterized in that, described drainpipe (21) for the body change tube body (2) by tilting described can exhaust flexible pipe.
8. a unsaturated soil consolidometer, comprises that body as claimed in claim 2 becomes pipe, also comprises tank (7), vertical deformation scale (8), air-pressure chamber (9), sample (10), be with valvular drainpipe (11), support (12), counterweight (13), top connects pneumatic shuttle (14), vertical piston rod (15), pressurization copper coin (16), permeable stone (17), sidepiece connects pneumatic shuttle (18), pottery clay plates (19), spiral kerve (20) and the drainpipe (21) being connected with body change pipe, it is characterized in that, described vertical deformation scale (8) is fixed on support (12), the tip of described vertical deformation scale (8) contacts with described air-pressure chamber (9), described air-pressure chamber (9) connects pneumatic shuttle (18) with sidepiece and is connected, and described air-pressure chamber (9) inside is provided with spiral kerve (20) from top to bottom successively, pottery clay plates (19), sample (10), permeable stone (17), pressurization copper coin (16) and vertical piston rod (15), on described vertical piston rod (15), be connected to top and connect pneumatic shuttle (14), and be connected with described support (12), described counterweight (13) is located at the lower end of described support (12), the lower end of the spiral kerve (20) described in the described drainpipe (21) being connected with valvular drainpipe (11) with body change pipe is located at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065409.7U CN203758568U (en) | 2014-02-14 | 2014-02-14 | Volume change pipe and unsaturated soil consolidometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065409.7U CN203758568U (en) | 2014-02-14 | 2014-02-14 | Volume change pipe and unsaturated soil consolidometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758568U true CN203758568U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065409.7U Expired - Fee Related CN203758568U (en) | 2014-02-14 | 2014-02-14 | Volume change pipe and unsaturated soil consolidometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203758568U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095347A (en) * | 2019-05-05 | 2019-08-06 | 三峡大学 | Three axis tensilometer of strain controlling formula unsaturated soil |
| CN113176391A (en) * | 2021-03-29 | 2021-07-27 | 中国电建集团西北勘测设计研究院有限公司 | Soil testing device |
| CN113959837A (en) * | 2021-09-15 | 2022-01-21 | 江南大学 | Unsaturated soil consolidation and humidification deformation measurement test device capable of accurately measuring water absorption and water discharge of sample and use method thereof |
-
2014
- 2014-02-14 CN CN201420065409.7U patent/CN203758568U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095347A (en) * | 2019-05-05 | 2019-08-06 | 三峡大学 | Three axis tensilometer of strain controlling formula unsaturated soil |
| CN110095347B (en) * | 2019-05-05 | 2022-02-01 | 三峡大学 | Strain control type unsaturated soil three-axis stretching instrument |
| CN113176391A (en) * | 2021-03-29 | 2021-07-27 | 中国电建集团西北勘测设计研究院有限公司 | Soil testing device |
| CN113959837A (en) * | 2021-09-15 | 2022-01-21 | 江南大学 | Unsaturated soil consolidation and humidification deformation measurement test device capable of accurately measuring water absorption and water discharge of sample and use method thereof |
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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: 20170214 |