CN205620246U - Water tank formula stress control triaxial apparatus based on consolidation apparatus - Google Patents
Water tank formula stress control triaxial apparatus based on consolidation apparatus Download PDFInfo
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- CN205620246U CN205620246U CN201620448013.XU CN201620448013U CN205620246U CN 205620246 U CN205620246 U CN 205620246U CN 201620448013 U CN201620448013 U CN 201620448013U CN 205620246 U CN205620246 U CN 205620246U
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- water tank
- pressure
- consolidation apparatus
- consolidation
- pressure chamber
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Abstract
The utility model provides a water tank formula stress control triaxial apparatus based on consolidation apparatus belongs to the testing instrument field among the geotechnical engineering, and the purpose provides a triaxial apparatus that carries out triaxial test under stable confined pressure. Including consolidation apparatus supporting platform the pressure chamber cover has been placed on the consolidation apparatus supporting platform, install on consolidation apparatus supporting platform and add the axle load device to what the sample added axial pressure, include link to each other with pressure chamber cover add the confined pressure device to what the sample added the confined pressure, it includes water tank and pipe to add the confined pressure device, the water tank present position is higher than the pressure chamber cover, pipe one end is linked together with the water tank, and the other end is linked together with the pressure chamber cover. This water tank formula stress control triaxial apparatus based on consolidation apparatus avoids the change of external force condition to cause the influence to the confined pressure, can provide stable confined pressure for a long time.
Description
Technical field
This utility model belongs to the test apparatus field in Geotechnical Engineering, a kind of water tank type stress control based on consolidation apparatus
Triaxial apparatus processed.
Background technology
Triaxial test is under conditions of applying stress to the three of sample directions, the deformation of research soil, until destroying occurs in sample
The test of overall process.Owing to triaxial test can measure the deformation parameter of soil, intensive parameter can be measured again, and have clear and definite
Boundary condition, therefore triaxial test suffers from important in soil nature analysis and engineering practice and is widely applied.Triaxial tester is pressed
Strain controlling formula triaxial apparatus and Stress Control formula triaxial apparatus two kinds can be divided into according to sample force-bearing types, strain controlling formula triaxial apparatus be with
Sample is sheared by certain shear rate, and Stress Control formula triaxial apparatus is to shear sample with constant load.
At present, normal triaxial instrument refers to the triaxial apparatus of strain controlling formula, is equipped with this kind of instrument in general soil mechanics laboratory, its work
It is, equipped with the base helical drive train pressure room of servo motor, to apply axial force from pressure chamber base to sample as principle；Confined pressure adds
Carry and put the air that certain pressure is provided by extraneous air compressor, control the force value of delivery air with indirectly via pressure regulator valve
Control the confined pressure size of the pressure chamber communicated with delivery air.And although the principle of Stress Control formula triaxial apparatus is clear and definite, i.e. by executing
Add constant load sample is sheared, but owing to its range of application is less, different scholars has made not for the needs of oneself
Same Stress Control formula triaxial apparatus, the most unified Stress Control formula triaxial apparatus, and there is various defect.
Now, along with the development of economic construction, people increasingly pay attention to the time effect problem of soil deformation, namely study
In one longer period, under conditions of load holding is constant, soil deformation rule over time.Conventional strain control
Standard triaxial apparatus can not meet the requirement of creep test, and Stress Control formula triaxial apparatus can provide constant load, passes through stress
Control formula triaxial apparatus carries out the preferable test method that creep test is research soil deformation time effect problem, it is therefore necessary to carry
For a kind of perfect Stress Control formula triaxial apparatus.And current, the conventional confined pressure mode that adds is to pressure by extraneous air compressor
The air of indoor offer certain pressure, controls the confined pressure size of pressure chamber via pressure regulator valve.But, under long-time experimental condition,
Pressure regulator valve service behaviour declines, and causes confined pressure to fluctuate.
Zhou Qiujuan proposes one in " repacking of Stress Control formula triaxial apparatus and application " and utilizes K0 consolidation apparatus and normal triaxial instrument
The Stress Control formula triaxial apparatus converted, its method is, uses the loading system of K0 consolidation apparatus, then in conjunction with normal triaxial instrument
Pressure chamber and drainage system be combined into a set of Stress Control formula triaxial apparatus, but this method use above-mentioned routine add confined pressure mode
Thering is provided confined pressure, the service behaviour at longer test period internal pressure-regulating valve may decline, and the confined pressure of output occurs fluctuation therewith,
Affect result of the test eventually.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, its
Triaxial test is carried out under stable confined pressure.
The technical solution adopted in the utility model is: a kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, including consolidation apparatus
Support platform, is placed with pressure chamber cover in described consolidation apparatus support platform；Consolidation apparatus support platform is provided with sample is added
Axial compressive force add axial compression device；Sample is added confined pressure add confining pressure device including be connected with pressure chamber cover；The described confined pressure that adds fills
Putting and include water tank and conduit, described water tank present position is higher than pressure chamber cover, and described tube at one end is connected with water tank, the other end
It is connected with pressure chamber cover.
Further, including water pressure gauge, described water pressure gauge is installed on conduit, and the installation site of described water pressure gauge be positioned over pressure
The center of the sample in the cover of power room is in sustained height.
Further, add axial compression device described in include power transmission bolt, be positioned at the consolidation apparatus crossbeam below consolidation apparatus support platform and company
Extension bar, described connecting rod one end is connected with consolidation apparatus support platform, and the other end is vertically slidably matched with consolidation apparatus crossbeam；
Being provided with power transmission column on consolidation apparatus crossbeam, described power transmission bolt one end is connected with power transmission column by connector, other end position
In the pressure chamber of pressure chamber cover, and power transmission bolt is positioned at the surface of sample；Including the counterweight device being installed on consolidation apparatus crossbeam.
Further, described power transmission column has two, and described connector is the entablature that two ends are connected with power transmission column respectively, institute
State power transmission bolt and entablature threaded engagement.
Further, be all removably connected with occlusion earcap at the two ends of consolidation apparatus crossbeam, described power transmission column be engaged earcap spiral shell
Tether and connect.
Further, also including the piston being positioned at pressure chamber cover, described piston is provided with the groove adaptive with power transmission bolt.
The beneficial effects of the utility model are: this kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, tube at one end and water
Case is connected, and the other end is connected with pressure chamber cover, water tank present position be higher than pressure chamber cover, the water in water tank need not by
The pressure chamber of external force energy natural feed pressure room cover, is full of whole pressure chamber, it is to avoid confined pressure is impacted by the change of external force condition,
Stable confined pressure can be provided for a long time.And power transmission column is connected with the occlusion earcap bolt at consolidation apparatus crossbeam two ends, can facilitate
Ground adjusts the distance between power transmission column, to install the pressure chamber cover of various sizes, improves the service efficiency of existing instrument.
Accompanying drawing explanation
Fig. 1 is this utility model front view.
Fig. 2 is Fig. 1 left view.
In figure, consolidation apparatus support platform 1, pressure chamber cover 2, sample 3, water tank 4, water pressure gauge 5, power transmission bolt 6, consolidation apparatus
Crossbeam 7, connecting rod 8, power transmission column 9, piston 10, counterweight device 11, entablature 12, groove 13, occlusion earcap 14,
Conduit 15.
Detailed description of the invention
This utility model is described further as follows with embodiment below in conjunction with the accompanying drawings:
As depicted in figs. 1 and 2, a kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, including consolidation apparatus support platform 1,
Described consolidation apparatus support platform 1 is placed with pressure chamber cover 2；Consolidation apparatus support platform 1 is provided with sample 3 is added axle
Axial compression device is added to pressure；Sample 3 is added confined pressure add confining pressure device including be connected with pressure chamber cover 2；Described add confined pressure
Device includes water tank 4 and conduit 15, and described water tank 4 present position is higher than pressure chamber cover 2, described conduit 15 one end and water tank 4
Being connected, the other end is connected with pressure chamber cover 2.
Add axial compression device for applying axial pressure to sample 3.Water tank 4, for being full of water to pressure chamber cover 2, passes through hydraulic pressure
Thering is provided confined pressure, therefore, described conduit 15 one end is connected with water tank 4, and the other end is connected with pressure chamber cover 2, thus will
Water tank 4 connects with the pressure chamber of pressure chamber cover 2, and described water tank 4 present position is higher than pressure chamber cover 2, makes in water tank 4
Water need not the pressure chamber by external force energy natural feed pressure room cover 2, it is to avoid confined pressure is impacted by the change of external force condition,
Stable confined pressure can be provided for a long time.
In order to measure the size of confined pressure, the situation of change of monitoring confined pressure, in order to the change to confined pressure in time regulates and controls, and reduction is enclosed
The pressure impact on experimental configuration, as preferably, including water pressure gauge 5, described water pressure gauge 5 is installed on conduit 15, and described hydraulic pressure
The installation site of table 5 is in sustained height with the center of the sample 3 being positioned in pressure chamber cover 2.The installation site of water pressure gauge 5
Being in sustained height with the center of sample 3, so, the hydraulic pressure at sample 3 center is equal with the hydraulic pressure value that water pressure gauge 5 records,
Such that it is able to record the confined pressure of sample 3.
In the above-described embodiment, adding axial compression device can be cylinder, the piston rod in the vertical direction centering sample 3 of cylinder,
Piston rod extends, it is achieved sample 3 is added axial compressive force.But, this kind of mode adds axial compression, unstable, easily occurs rocking.
As preferably, described in add axial compression device and include power transmission bolt 6, be positioned at consolidation apparatus crossbeam 7 and below consolidation apparatus support platform 1
Connecting rod 8, described connecting rod 8 one end is connected with consolidation apparatus support platform 1, the other end vertically with consolidation apparatus crossbeam 7
It is slidably matched；Being provided with power transmission column 9 on consolidation apparatus crossbeam 7, described power transmission bolt 6 one end is stood with power transmission by connector
Post 9 is connected, and the other end is positioned at the pressure chamber of pressure chamber cover 2, and power transmission bolt 6 is positioned at the surface of sample 3；Including peace
It is loaded on the counterweight device 11 of consolidation apparatus crossbeam 7.
Power transmission column 9 can be one, but, supporting power transmission bolt 6 by a power transmission column 9, power transmission bolt 6 easily shakes
Dynamic, the axial compressive force causing applying is unstable, and as preferably, described power transmission column 9 has two, and described connector is that two ends are divided
The entablature 12 not being connected with power transmission column 9, described power transmission bolt 6 and entablature 12 threaded engagement.
Preferably, at the two ends of consolidation apparatus crossbeam 7 all be removably connected with occlusion earcap 14, described power transmission column 9 be engaged ear
Cap 14 bolt connects.The two ends of consolidation apparatus crossbeam 7 are all removably connected with occlusion earcap 14, then, can be by different chis
Very little occlusion earcap 14 adjusts the distance between power transmission column 9, to install the pressure chamber cover 2 of various sizes, and consolidation apparatus crossbeam
7 removably connect with being engaged earcap 14, and if occlusion earcap 14 is the rectangular block having rectangular channel, the end of consolidation apparatus crossbeam 7 is stuck in stings
Close in the rectangular channel of earcap 14, connect occlusion earcap 14 and consolidation apparatus crossbeam 7 by fastening bolt.So, this utility model is not destroying now
In the case of having instrument, it is provided that a kind of Stress Control formula triaxial rheometer, after having tested, it is convenient to revert to consolidation apparatus.Test completes
After, it is convenient to revert to consolidation apparatus so that in the case of not destroying existing instrument, it is provided that a kind of Stress Control formula three axle
Flow graph, improves the service efficiency of existing instrument.
Preferably, also including the piston 10 being positioned at pressure chamber cover 2, described piston 10 is provided with and power transmission bolt 6 adaptation
Groove 13.Power transmission bolt 6 directly acts on piston 10, and piston 10 transfers the pressure to sample 3, due to piston 10 and sample
The contact area of 3 is big, thus reduces the probability of sample 3 local damage.And groove 13 is used for positioning power transmission bolt 6, it is to avoid
Screw rod 6 skids at piston 10 end face.
Claims (6)
1. a water tank type Stress Control triaxial apparatus based on consolidation apparatus, it is characterised in that: include consolidation apparatus support platform (1),
Described consolidation apparatus support platform (1) is placed with pressure chamber cover (2)；Consolidation apparatus support platform (1) is provided with examination
What sample (3) added axial compressive force adds axial compression device；Sample (3) is added confined pressure add confined pressure including be connected with pressure chamber cover (2)
Device；The described confining pressure device that adds includes water tank (4) and conduit (15), and described water tank (4) present position is higher than pressure chamber cover (2),
Described conduit (15) one end is connected with water tank (4), and the other end is connected with pressure chamber cover (2).
A kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, it is characterised in that: include water
Pressure table (5), described water pressure gauge (5) is installed on conduit (15), and the installation site of described water pressure gauge (5) be positioned over pressure
The center of the sample (3) in power room cover (2) is in sustained height.
A kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, it is characterised in that: institute
State add axial compression device include power transmission bolt (6), be positioned at consolidation apparatus support platform (1) lower section consolidation apparatus crossbeam (7) and connect
Bar (8), described connecting rod (8) one end is connected with consolidation apparatus support platform (1), and the other end is vertically horizontal with consolidation apparatus
Beam (7) is slidably matched；Being provided with power transmission column (9) on consolidation apparatus crossbeam (7), described power transmission bolt (6) one end leads to
Crossing connector to be connected with power transmission column (9), the other end is positioned at the pressure chamber of pressure chamber cover (2), and power transmission bolt (6) position
Surface in sample (3)；Including the counterweight device (11) being installed on consolidation apparatus crossbeam (7).
A kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, it is characterised in that: described biography
Power column (9) has two, and described connector is the entablature (12) that two ends are connected with power transmission column (9) respectively, described biography
Power bolt (6) and entablature (12) threaded engagement.
A kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, it is characterised in that: in consolidation
The two ends of instrument crossbeam (7) all be removably connected with occlusion earcap (14), described power transmission column (9) be engaged earcap (14)
Bolt connects.
A kind of water tank type Stress Control triaxial apparatus based on consolidation apparatus, it is characterised in that: also include
Being positioned at the piston (10) of pressure chamber cover (2), described piston (10) is provided with the groove (13) adaptive with power transmission bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448013.XU CN205620246U (en) | 2016-05-17 | 2016-05-17 | Water tank formula stress control triaxial apparatus based on consolidation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448013.XU CN205620246U (en) | 2016-05-17 | 2016-05-17 | Water tank formula stress control triaxial apparatus based on consolidation apparatus |
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| CN205620246U true CN205620246U (en) | 2016-10-05 |
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| CN201620448013.XU Active CN205620246U (en) | 2016-05-17 | 2016-05-17 | Water tank formula stress control triaxial apparatus based on consolidation apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908204A (en) * | 2017-03-16 | 2017-06-30 | 武汉大学 | A kind of K0The detection method of consolidation apparatus air-tightness |
| CN107505209A (en) * | 2017-09-29 | 2017-12-22 | 山西省交通科学研究院 | A kind of new loading system of consolidation apparatus and loading method |
| CN110220793A (en) * | 2019-05-25 | 2019-09-10 | 温州大学 | Multistation rotates test triaxial apparatus and its experimental working technique automatically |
| CN116660049A (en) * | 2023-07-28 | 2023-08-29 | 达州华冠砼业有限公司 | Concrete pipeline water pressure testing equipment and method |
-
2016
- 2016-05-17 CN CN201620448013.XU patent/CN205620246U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908204A (en) * | 2017-03-16 | 2017-06-30 | 武汉大学 | A kind of K0The detection method of consolidation apparatus air-tightness |
| CN107505209A (en) * | 2017-09-29 | 2017-12-22 | 山西省交通科学研究院 | A kind of new loading system of consolidation apparatus and loading method |
| CN110220793A (en) * | 2019-05-25 | 2019-09-10 | 温州大学 | Multistation rotates test triaxial apparatus and its experimental working technique automatically |
| CN116660049A (en) * | 2023-07-28 | 2023-08-29 | 达州华冠砼业有限公司 | Concrete pipeline water pressure testing equipment and method |
| CN116660049B (en) * | 2023-07-28 | 2023-10-03 | 达州华冠砼业有限公司 | Concrete pipeline water pressure testing equipment and method |
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