CN103091160A - Geotechnical compression test hydraulic system and testing method - Google Patents

Geotechnical compression test hydraulic system and testing method Download PDF

Info

Publication number
CN103091160A
CN103091160A CN2013100616428A CN201310061642A CN103091160A CN 103091160 A CN103091160 A CN 103091160A CN 2013100616428 A CN2013100616428 A CN 2013100616428A CN 201310061642 A CN201310061642 A CN 201310061642A CN 103091160 A CN103091160 A CN 103091160A
Authority
CN
China
Prior art keywords
valve
pressure
sample
test
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013100616428A
Other languages
Chinese (zh)
Other versions
CN103091160B (en
Inventor
杨冬鹏
佟全志
佟胤铮
赵玉权
王茺
杨树学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INVESTIGATION AND DESIGN INSTITUTE OF WATER RESOURCES AND HYDROPOWER LIAONING PROVINCE
Original Assignee
INVESTIGATION AND DESIGN INSTITUTE OF WATER RESOURCES AND HYDROPOWER LIAONING PROVINCE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INVESTIGATION AND DESIGN INSTITUTE OF WATER RESOURCES AND HYDROPOWER LIAONING PROVINCE filed Critical INVESTIGATION AND DESIGN INSTITUTE OF WATER RESOURCES AND HYDROPOWER LIAONING PROVINCE
Priority to CN201310061642.8A priority Critical patent/CN103091160B/en
Publication of CN103091160A publication Critical patent/CN103091160A/en
Application granted granted Critical
Publication of CN103091160B publication Critical patent/CN103091160B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a geotechnical compression test hydraulic system and a testing method, wherein the geotechnical compression test hydraulic system comprises a pressure loading device, an energy storing device and a specimen testing device which are sequentially connected end to end; the energy storing device comprises a large energy storage and a small energy storage which are connected with each other in series; a pressure adjusting device is arranged between the two energy storages; the pressure loading device, the energy storing device, the specimen testing device and the pressure adjusting device are all connected with a data collecting system solely; and the data collecting system is also connected to a data processing and displaying device by a data line. The geotechnical compression test hydraulic system is high in degree of automation, low in cost, low in influence by external environmental factors, low in noise, strong in expandability and small in occupied area. By utilizing the geotechnical compression test hydraulic system and the testing method, the purposes of optimization of the industrial structure, reduction of the number of personnel, low energy consumption and high efficiency are realized.

Description

Geotechnique's compression test hydraulic system and method for testing
Technical field
The present invention relates to geotechnological compression test technology, specifically a kind of geotechnological compression test hydraulic system and method for testing.
Background technology
Along with the development of science and technology, arising of large hydropower station, dykes and dams, skyscraper all requires its basis that firm stability will be arranged.In engineering construction, soil is born different research objects according to the effect difference.When building house, bridge, road, dykes and dams on soil layer, soil is to support the load that buildings transmits, and at this moment soil is to be used as ground; When the earthen structures such as build embankment, earth dam, soil is exactly to be used as building materials; In addition, as tunnel, culvert and hypogee etc., soil is as the medium of Around Buildings or environment.
Foundation soil body in engineering produces stress and distortion under the superstructure load action.The vertical direction distortion of ground is sedimentation.The distortion of the soil body or sedimentation are stable most important to engineering safety, are can be closely-related with Soil compressibility.Soil body compressibility has comprised the content of two aspects: the one, the absolute size of compress variation, that is settling amount size, the 2nd, compression deformation over time, i.e. the problem of so-called soil solidifying.
Embankment in road and bridge engineering also can produce compression deformation under gravity own and Vehicle Load.The sedimentation meeting of soil causes more or less impact to following aspect, as grade elevation reduce, the normal use of impact and the potential safety hazards such as the minimizing of under-clearance, embankment cracking, Uneven road.Therefore, in order to ensure the safe handling of road and bridge engineering, need to determine the distortion size of foundation soil, also need to understand and estimate sedimentation development in time and the possibility that tends towards stability thereof.
Because many construction work accidents comprise the seriously sinking of building inclination, buildings, wall crazing and basis fracture etc., are all that Soil compressibility is high or compressibility is inhomogeneous, cause what the serious sedimentation of ground or non-uniform settling caused.
So in engineering, the consolidation test of foundation soil detects particularly importantly, by its Mechanics Performance Testing to soil, is derived as the mechanics parameter that engineering design needs.
Nowadays the testing tool that soil sample is carried out consolidation test is divided into two kinds.A kind of is comparatively traditional manually the adding formula lever consolidometer that sticks together, and its advantage is not to be subjected to the impact of external condition, and shortcoming is that the instrument floor area is large, when increasing the weight of for the every one-level of soil sample, all needs manually to remove and sticks together, adds and stick together.And the soil sample consolidation test of an exploratory hole does not wait from tens groups to up to a hundred groups, the soil sample of an exploration area will over thousands of group of sample, experiment work will drop into a large amount of manpowers and consolidation device, and lever consolidometer floor area is larger, great restriction is caused in the space in laboratory, and the duration not busy can cause a large amount of personnel, equipment, space idle, increased business burden.And another kind is comparatively advanced vapour-pressure type consolidometer, its advantage is to take up an area little, work slightly low, general 3-4 people can complete a consolidation test, its principle is to use air pump to be connected with cylinder to exert pressure to the force bearing plate below soil sample, and control the pressure of every grade by pressure regulator valve, realized semi-automation.But its shortcoming is:
The top pressure of 1 air pump is limited, and testing apparatus can't be done high-potting.
The air compressor machine work irregularities of 2 air pumps when air pressure can start during lower than limit value automatically, can make people's psychology cause instantaneous anxiety, and has brought very large noise during air pump work, works long hours and can cause certain injury to human body under this environment.
3 gas pressure consolidation instrument leakage detection inconvenience, when finding gas leakage, need to search one by one along whole pipeline with the self-control suds, caused a large amount of time lags, because every grade of test sample has strict time rule, if serious gas leakage occurs in process of the test, test can't normally be carried out, cause the soil sample mechanical property to change, the parameter distortion, design impacts to construction in later period.
It is more that 4 vapour-pressure type consolidometer are affected by extraneous factor, and breaking down as power failure, pressure regulator valve, air compressor machine etc. all to make whole experiment work normally carry out or the test figure distortion, even causes great detection accident.
5 due to the low restriction of air compressor machine output pressure, general vapour-pressure type consolidometer at most can be to 12 soil samples while load tests, and just need to purchase many consolidometer when doing more Multi-example, and configure a plurality of air compressor machines, caused a large amount of noise pollutions and cost to have high input and floor area large.
Therefore, development can not be affected by the external environment, low noise and the multifunctional earth compression test hydraulic system that can realize the artificial intelligence applied voltage test be all test industry active demands.
Summary of the invention
The object of the present invention is to provide geotechnological compression test hydraulic system and method for testing, the high and low cost of this system automation degree, the factor that is affected by the external environment is little, noise is low, extensibility is strong, floor area is little, realized optimizing the structure of production, reduce personnel amount and labour intensity, low energy consumption, high efficiency advantage purpose.
In order to reach above-mentioned purpose, the invention provides following technical scheme: geotechnological compression test hydraulic system, the pressure loading device, energy storage device, the sample testing device that comprise head and the tail connection successively, described energy storage device comprises large accumulator and the little accumulator that is cascaded, be provided with regulator between above-mentioned two accumulators, described pressure loading device, energy storage device, sample testing device, regulator all are connected with data acquisition system (DAS) separately, and described data acquisition system (DAS) is connected to data by data line again and processes and display device.
Described pressure loading device is connected to form in parallel by electric hydaulic test pump and artificial foot pump, carry the controllable pressure table on the electric hydaulic test pump, electric hydaulic test pump one end is connected with automatic switch valve, the other end is connected with water tank, artificial foot pump one end is connected by pressure line with digital display manometer and manual switch valve door, and the other end is connected with water tank.
Described large accumulator has a straight-through interface and a three-way interface, and straight-through interface is connected with pressure loading device, and three-way interface is connected respectively on the six-way valve valve port and by connecting with manual pressure regulating valve and accesses on one of them six-way valve valve port of six-way valve; Little accumulator has two straight-through interfaces, a straight-through interface directly accesses on one of them six-way valve valve port of six-way valve, another straight-through interface is connected with the sample testing device by always entering pressure valve, also has one on described six-way valve as the six-way valve valve port of drainage exhaust.
Described regulator is divided into automatic pressure regulating device and hand-operated pressure regulation appliance, hand-operated pressure regulation appliance comprises manual pressure regulating valve, automatic pressure regulating device is comprised of digital display intelligent instrument, solenoid valve and pressure transducer, the rearmounted interface of described digital display intelligent instrument is connected with pressure transducer with solenoid valve respectively, one of them six-way valve valve port of solenoid valve input port and six-way valve is connected, the solenoid valve delivery outlet is connected with the threeway short circuit, and all the other two interfaces of threeway short circuit are connected with pressure transducer respectively and are connected with little accumulator.
described sample testing device has many tests along separate routes, many simply connected consolidometer of every test minute route are composed in series, the simply connected consolidometer is fixed on testing table by reaction frame, simply connected consolidometer bottom is the static load cylinder body, static load cylinder body circumference symmetric position is connected with respectively monomer and enters pressure valve and monomer blowdown valve, describedly enter pressure valve and connect energy storage device, described blowdown valve is connected to water tank, enclose sliding contact with the dynamic load piston by sealing O in the static load cylinder body, the dynamic load piston can move up and down in the static load cylinder body, the dynamic load piston is threaded with the loading pallet of self top, place on the loading pallet and hold the sample dish, hold the sample dish one side rotatable fixed mount that is threaded, dial gauge with data output function is clamped on rotatable fixed mount, the dial gauge chaining pin contacts with the displacement transiting rod, all instrument in described sample testing device all are connected on data collector by data line.
The described sample face of trying to get to the heart of a matter that holds arranges groove, makes the loading pallet just put into groove; Hold sample try to get to the heart of a matter face inboard and also have groove, make in large permeable stone standing groove, cutting ring is placed on large permeable stone center, and test sample is placed in cutting ring, and is contour with cutting ring.
Described cutting ring is annular hollow structure, little permeable stone is positioned on test sample and just contacts with cutting ring inwall hollow structure, little permeable stone top is upper cover, upper tops is semisphere, the sphere centre place has through hole and runs through the top and bottom of upper cover, and this through-bore axis is consistent with the central axis of upper cover.
The crossbeam center of described reaction frame is provided with through hole.
Described displacement transiting rod is in reaction frame crossbeam and sample upper cover and contact with little permeable stone.
In order to reach above-mentioned another purpose, the invention provides following technical scheme: geotechnological compression test hydraulic system is carried out the method for experimental test, the steps include:
During detection, all need be put into the sample for preparing and hold the sample box, cover the test sample upper cover, the displacement transiting rod are passed with tops on sample from reaction frame upper beam central small hole contact, and rotate dial framework, the clock gauge indicator is come directly towards with the displacement transiting rod contact;
When adopting test automatically, close manual switch valve, open automatic switch valve, to close as the six-way valve valve port of drainage exhaust and the six-way valve valve port that connects hand-operated pressure regulation appliance, other valve port is opening; When adopting manual test, open manual switch valve, close automatic switch valve, close the six-way valve valve port as drainage exhaust, the six-way valve valve port that connects automatic pressure regulating device and the six-way valve valve port that connects large accumulator, other valve port is opening;
the first situation: when the test sample sample is more, with total water intaking valve, total venting valve and each branch line water inlet main valve, the total venting valve of each branch line and each individual water intaking valve, venting valve is opened, when adopting test automatically, regulating the digital display intelligent instrument is set pressure and corresponding voltage stabilizing time and controllable pressure table, starting the electric hydaulic test pump is the pipeline water delivery, get rid of in pipeline and the gas in each simply connected consolidometer cylinder body, when getting rid of bubble without the earial drainage main pipe rail in water tank, close total venting valve, the total venting valve of each branch line, begin to detect, detect data and will be transferred to data collector by data line, process and display device is carried out the data Storage ﹠ Display by data, detect complete after, close the electric hydaulic test pump, open total venting valve, the total venting valve of each branch line, carry out pressure release,
The second situation: when sample is less, the individual water intaking valve, the venting valve that need to use on total water intaking valve, total venting valve and branch line water inlet main valve, the total venting valve of branch line, branch line are opened, the individual water intaking valve, the venting valve that are not used on all the other branch line water inlet main valve, the total venting valve of branch line and branch lines are closed, regulating the digital display intelligent instrument is set pressure and corresponding voltage stabilizing time, and the controllable pressure table, start the electric hydaulic test pump and carry out test experience;
The third situation: in testing process, when finding that certain simply connected consolidometer leaks, individual water intaking valve, venting valve can be closed, not affect the test experience of other sample;
The 4th kind of situation: when meeting with power failure or open-air test experience, adopt manual test experience, data are copied on paper record by the data of reacting on clock gauge.
Compared to prior art, the present invention has following beneficial effect:
1, automaticity is high, adopts the digital display intelligent instrument, sample is carried out the Loading Control of corresponding time, adopts data collector, carries out the automatic collection of test data.
2, the factor that is affected by the external environment is little, is not had a power failure and the impact of device fails, has automatically and manual two cover detection systems.
3, low noise adopts the electric hydaulic test pump to carry out system's pressurization, has realized low noise.
4, low-cost, extensibility is strong, floor area is little, a plurality of simply connected consolidometer of can connecting, input cost is little, high efficiency.
5, leakage detection is convenient, has overcome the characteristics of air lift pump leakage detection inconvenience, and leak source is visual.
6, can apply high pressure, adopt the electric hydaulic test pump, realize that basic, normal, high pressure is integrated.
Specifically, the exert pressure device is composed in parallel by high pressure manual force (forcing) pump and driven high voltage test pump, can independently carry out voltage supply to whole pipeline respectively; Energy storage device is made of the accumulator of the reserves that vary in size, large accumulator is connected by pressure line with pressure loading device, whole pipeline is carried out pressure compensation and energy storage, and little accumulator partly carries out pressure compensation and energy storage by connecting with the sample testing device for pressure pipeline to sample testing.Regulator is divided into digital display automatically and two kinds manually, connects in pipeline by six-way valve, and input end is connected with large accumulator, and output terminal is connected with little accumulator, for the sample testing device provides controlled, steady accumulation of energy.Data acquisition system (DAS) deposits by the data cable concentrator the native compression displacement value that measures in computer in by computer, data cable concentrator, form with the displacement transducer of data-interface.The present invention be mainly used in saturated soil low-in-the fixed compression test of high pressure, in addition in conjunction with digitizing measuring equipment and data collector, realized the automatic collection of test figure.
High pressure line passes through the screwed connection of controllable high-voltage pressure regulator valve at two ends with supplying pressure pipeline; Be connected with the sample testing device for the pressure pipeline port, the sample testing device is composed in parallel by many branch testing platforms, and each branch testing platform is together in series by many consolidometer.The consolidometer bottom sets into respectively pressure valve and blowdown valve for static load cylinder body, circumference symmetric position, enclose sliding contact with the dynamic load piston by sealing O in the static load cylinder body, the dynamic load piston is connected with the loading dish is fixed by the pressure transmission bar, the dynamic load piston can move up and down in the static load cylinder body, pressurization and the pressure release of sample are carried out in realization by reaction frame to the sample in the sample box on the loading dish, sample shows by the dial gauge total indicator reading on micrometer gauge bar brace table (displacement transiting rod) in the decrement of different time under loads at different levels.Consolidation test test, the series connection pipeline is divided into voltage supply pipeline and pressure relief pipe, and screwed connection enters pressure valve and blowdown valve in consolidometer respectively.
Description of drawings
Fig. 1 is the structural representation of geotechnological compression test hydraulic system of the present invention.
In figure: 1, clock gauge; 2, dial framework; 3, reaction frame pillar; 4, hold the sample box; 5, loading pallet; 6, individual water intaking valve; 7, displacement transiting rod; 8, permeable stone; 9, static load cylinder body; 10, individual venting valve; 11, inlet triplet for water; 12, dynamic load piston; 13, total water intaking valve; 14, little accumulator; 15, digital display intelligent instrument; 16, pressure transducer; 17, solenoid valve; 18, sample upper cover; 19, threeway short circuit; 20, cutting ring; 21,22,23,25,26,27, six-way valve valve port; 24, reaction frame upper beam; 28, digital display manometer; 29, manual pressure regulating valve; 30, large accumulator; 31, manual switch valve; 32, artificial foot pump; 33, automatic switch valve; 34, controllable pressure table; 35, electric hydaulic test pump; 36, water tank; 37, data are processed and display device; 38, data collector; 39, data line; 40, earial drainage threeway; 41, the first branch line earial drainage main valve; 42, the second branch line earial drainage main valve; 43, the first branch line water inlet main valve; 44, the second branch line water inlet main valve; 45, total venting valve; 46, digital display manometer; 47, simply connected consolidometer; 48, worktable; 49, sealing O circle.
Embodiment
Relevant detailed description of the present invention and technology contents coordinate description of drawings as follows, yet accompanying drawing only provides the use of reference with explanation, and the present invention is limited.
According to shown in Figure 1, geotechnological compression test hydraulic system comprises sample testing device, pressure loading device, energy storage device, regulator and data acquisition system (DAS).pressure loading device is accessed in pipeline in parallel with artificial foot pump 32 by electric hydaulic test pump 35 and forms, carry controllable pressure table 34 on electric hydaulic test pump 35, one end is connected with automatic switch valve 33, the other end is connected with water tank 36, artificial foot pump 32 1 ends and digital display manometer 46 and hand switch valve 31 are by the pressure line screwed connection, and the other end is connected with water tank 36, large accumulator 30 has a straight-through interface and a three-way interface, straight-through interface is connected with pressure loading device, energy storage device is comprised of large accumulator 30 and little accumulator 14, large accumulator 30 has a straight-through interface and a three-way interface, straight-through interface is connected with pressure loading device, three-way interface is connected respectively on six-way valve valve port 25, with by on the access six-way valve valve port 26 of connecting with manual pressure regulating valve 29, little accumulator 14 has two straight-through interfaces, one is directly accessed on six-way valve valve port 22, another is with pressure valve 13 series connection are rear to be connected with the sample testing device by always entering, regulator is divided into automatic Regulation and manual voltage regulation, manual voltage regulation is comprised of manual pressure regulating valve 29, automatic Regulation is comprised of digital display intelligent instrument 15, solenoid valve 17 and pressure transducer 16, solenoid valve 17 1 ends are connected with six-way valve valve port 21, the other end and 19 screwed connections of threeway short circuit, threeway short circuit 19 all the other two interfaces respectively with pressure transducer 16 screwed connections, and connect together by pipeline with little accumulator 14, the sample testing device has many tests along separate routes, many simply connected consolidometer 47 of every test minute route are composed in series, simply connected consolidometer 47 is fixed on testing table 48 by reaction frame 3 screw threads, the consolidometer bottom is static load cylinder body 9, the circumference symmetric position is connected with respectively monomer and enters pressure valve 6 and monomer blowdown valve 10, enclose 49 sliding contacts with dynamic load piston 12 by sealing O in static load cylinder body 9, can move up and down in static load cylinder body 9, dynamic load piston 12 is threaded with loading pallet 5, place on loading pallet 5 and hold sample dish 4, the one side rotatable fixed mount 2 that is threaded, dial gauge 47 with data output function is clamped on rotatable fixed mount 2, the dial gauge chaining pin contacts with displacement transiting rod 7, each is shown data line and converges on data collector 38, send on data processing and display device 37 by data line again.
The described sample dish 4 that holds, the bottom surface is groove, can make loading pallet 5 just put into groove, holds sample dish 4 inboards, bottom surface and has groove, can make in large permeable stone standing groove, and cutting ring is placed on large permeable stone center, and test sample is placed in cutting ring, and is contour with cutting ring.Described reaction frame 3, the crossbeam center is provided with through hole.
The described test sample of making, be placed in cutting ring, the cutting ring ring is placed on large permeable stone, and it is annular hollow structure, and little permeable stone is positioned on sample, can just contact with cutting ring inwall hollow structure, little permeable stone top is upper cover, and upper tops is semisphere, and the sphere centre place has through hole, the top and bottom that runs through upper cover, and through hole is positioned on the central axis of upper cover.
Described displacement transiting rod 7 can through reaction frame 3 crossbeams and sample upper cover, contact with little permeable stone.Described six-way valve mouth 23 is the drainage air valve.
The rearmounted interface of described digital display intelligent instrument 15 is connected with pressure transducer 16 with solenoid valve 17, and solenoid valve 17 delivery outlets and sensor 16 are by the threeway screwed connection together.Can be by phases-time and the corresponding described electric hydaulic test pump 35 of force value of holding be set on the digital display intelligent instrument, the force value that can arrange by the controllable pressure table 34 that carries, the work of controlling the electric hydaulic test pump with stop.
Operating process:
During detection, all need the sample for preparing is put into to hold sample box 4, cover sample upper cover 18, displacement transiting rod 7 is passed with sample upper cover 18 tops from reaction frame upper beam 24 central small hole contact, rotate dial framework 2, clock gauge 1 indicator is come directly towards with displacement transiting rod 7 contact.
When adopting test automatically, close manual switch valve 31, open automatic switch valve 33, close six-way valve mouth 26,23, other valve port is opening.
When adopting manual test, open manual switch valve 31, close automatic switch valve 33, close six-way valve mouth 21,25,23, other valve port is opening.
the first situation: when sample is more, with total water intaking valve 13, total venting valve 45 and each branch line water inlet main valve 43, 44, the total venting valve 41 of each branch line, 42, and each individual water intaking valve 6, venting valve 10 is opened, when adopting test automatically, regulating digital display intelligent instrument 15 is set pressure and corresponding voltage stabilizing time, and controllable pressure table 34, start electric hydaulic test pump 35 and be the pipeline water delivery, get rid of in pipeline and the gas in each simply connected consolidometer 47 cylinder bodies, when getting rid of bubble without the earial drainage main pipe rail in water tank 36, close total venting valve 45, the total venting valve 41 of each branch line, 42, begin to detect, detect data and will be transferred to data collector 38 by data line 39, carry out the data Storage ﹠ Display by display device 37, detect complete after, close electric hydaulic test pump 35, open total venting valve 45, the total venting valve 41 of each branch line, 42, carry out pressure release.
The second situation: when sample is less, with total water intaking valve 13, total venting valve 45 and branch line water inlet main valve 43, the total venting valve 41 of branch line, and need the individual water intaking valve 6 used on branch line, venting valve 10 is opened, all the other branch line water inlet main valves 42, the total venting valve 44 of branch line, and the individual water intaking valve 6 that is not used on branch line, venting valve 10 is closed, regulating digital display intelligent instrument 15 is set pressure and corresponding voltage stabilizing time, and controllable pressure table 34, starts electric hydaulic test pump 35 and carries out test experience.
The third situation: in testing process, when finding that certain simply connected consolidometer leaks, can be with individual water intaking valve 6, venting valve 10 is closed, and does not affect the test experience of other sample.
The 4th kind of situation: when meeting with power failure or open-air test experience, can adopt manual test experience, data are copied on paper record by the data of reaction on clock gauge 1.
The above is only preferred embodiment of the present invention, and non-in order to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.

Claims (10)

1. geotechnological compression test hydraulic system, it is characterized in that, the pressure loading device, energy storage device, the sample testing device that comprise head and the tail connection successively, described energy storage device comprises large accumulator and the little accumulator that is cascaded, be provided with regulator between above-mentioned two accumulators, described pressure loading device, energy storage device, sample testing device, regulator all are connected with data acquisition system (DAS) separately, and described data acquisition system (DAS) is connected to data by data line again and processes and display device.
2. geotechnological compression test hydraulic system according to claim 1, it is characterized in that, described pressure loading device is connected to form in parallel by electric hydaulic test pump and artificial foot pump, carry the controllable pressure table on the electric hydaulic test pump, electric hydaulic test pump one end is connected with automatic switch valve, the other end is connected with water tank, and artificial foot pump one end is connected by pressure line with digital display manometer and manual switch valve door, and the other end is connected with water tank.
3. geotechnological compression test hydraulic system according to claim 1, it is characterized in that, described large accumulator has a straight-through interface and a three-way interface, straight-through interface is connected with pressure loading device, and three-way interface is connected respectively on the six-way valve valve port and by connecting with manual pressure regulating valve and accesses on one of them six-way valve valve port of six-way valve; Little accumulator has two straight-through interfaces, a straight-through interface directly accesses on one of them six-way valve valve port of six-way valve, another straight-through interface is connected with the sample testing device by always entering pressure valve, also has one on described six-way valve as the six-way valve valve port of drainage exhaust.
4. geotechnological compression test hydraulic system according to claim 3, it is characterized in that, described regulator is divided into automatic pressure regulating device and hand-operated pressure regulation appliance, hand-operated pressure regulation appliance comprises manual pressure regulating valve, automatic pressure regulating device is by the digital display intelligent instrument, solenoid valve and pressure transducer form, the rearmounted interface of described digital display intelligent instrument is connected with pressure transducer with solenoid valve respectively, one of them six-way valve valve port of solenoid valve input port and six-way valve is connected, the solenoid valve delivery outlet is connected with the threeway short circuit, all the other two interfaces of threeway short circuit are connected with pressure transducer respectively and are connected with little accumulator.
5. geotechnological compression test hydraulic system according to claim 1, it is characterized in that, described sample testing device has many tests along separate routes, many simply connected consolidometer of every test minute route are composed in series, the simply connected consolidometer is fixed on testing table by reaction frame, simply connected consolidometer bottom is the static load cylinder body, static load cylinder body circumference symmetric position is connected with respectively monomer and enters pressure valve and monomer blowdown valve, describedly enter pressure valve and connect energy storage device, described blowdown valve is connected to water tank, enclose sliding contact with the dynamic load piston by sealing O in the static load cylinder body, the dynamic load piston can move up and down in the static load cylinder body, the dynamic load piston is threaded with the loading pallet of self top, place on the loading pallet and hold the sample dish, hold the sample dish one side rotatable fixed mount that is threaded, dial gauge with data output function is clamped on rotatable fixed mount, the dial gauge chaining pin contacts with the displacement transiting rod, all instrument in described sample testing device all are connected on data collector by data line.
6. geotechnological compression test hydraulic system according to claim 5, is characterized in that, the described sample face of trying to get to the heart of a matter that holds arranges groove, makes the loading pallet just put into groove; Hold sample try to get to the heart of a matter face inboard and also have groove, make in large permeable stone standing groove, cutting ring is placed on large permeable stone center, and test sample is placed in cutting ring, and is contour with cutting ring.
7. geotechnological compression test hydraulic system according to claim 6, it is characterized in that, described cutting ring is annular hollow structure, little permeable stone is positioned on test sample and just contacts with cutting ring inwall hollow structure, little permeable stone top is upper cover, upper tops is semisphere, and the sphere centre place has through hole and runs through the top and bottom of upper cover, and this through-bore axis is consistent with the central axis of upper cover.
8. geotechnological compression test hydraulic system according to claim 5, is characterized in that, the crossbeam center of described reaction frame is provided with through hole.
9. geotechnological compression test hydraulic system according to claim 5, is characterized in that, described displacement transiting rod is in reaction frame crossbeam and sample upper cover and contact with little permeable stone.
10. utilize the described geotechnological compression test hydraulic system of claim 1-9 any one to carry out the method for experimental test, the steps include:
During detection, all need be put into the sample for preparing and hold the sample box, cover the test sample upper cover, the displacement transiting rod are passed with tops on sample from reaction frame upper beam central small hole contact, and rotate dial framework, the clock gauge indicator is come directly towards with the displacement transiting rod contact;
When adopting test automatically, close manual switch valve, open automatic switch valve, to close as the six-way valve valve port of drainage exhaust and the six-way valve valve port that connects hand-operated pressure regulation appliance, other valve port is opening; When adopting manual test, open manual switch valve, close automatic switch valve, close the six-way valve valve port as drainage exhaust, the six-way valve valve port that connects automatic pressure regulating device and the six-way valve valve port that connects large accumulator, other valve port is opening;
the first situation: when the test sample sample is more, with total water intaking valve, total venting valve and each branch line water inlet main valve, the total venting valve of each branch line and each individual water intaking valve, venting valve is opened, when adopting test automatically, regulating the digital display intelligent instrument is set pressure and corresponding voltage stabilizing time and controllable pressure table, starting the electric hydaulic test pump is the pipeline water delivery, get rid of in pipeline and the gas in each simply connected consolidometer cylinder body, when getting rid of bubble without the earial drainage main pipe rail in water tank, close total venting valve, the total venting valve of each branch line, begin to detect, detect data and will be transferred to data collector by data line, process and display device is carried out the data Storage ﹠ Display by data, detect complete after, close the electric hydaulic test pump, open total venting valve, the total venting valve of each branch line, carry out pressure release,
The second situation: when sample is less, the individual water intaking valve, the venting valve that need to use on total water intaking valve, total venting valve and branch line water inlet main valve, the total venting valve of branch line, branch line are opened, the individual water intaking valve, the venting valve that are not used on all the other branch line water inlet main valve, the total venting valve of branch line and branch lines are closed, regulating the digital display intelligent instrument is set pressure and corresponding voltage stabilizing time, and the controllable pressure table, start the electric hydaulic test pump and carry out test experience;
The third situation: in testing process, when finding that certain simply connected consolidometer leaks, individual water intaking valve, venting valve can be closed, not affect the test experience of other sample;
The 4th kind of situation: when meeting with power failure or open-air test experience, adopt manual test experience, data are copied on paper record by the data of reacting on clock gauge.
CN201310061642.8A 2013-02-27 2013-02-27 Geotechnical compression test hydraulic system and testing method Active CN103091160B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310061642.8A CN103091160B (en) 2013-02-27 2013-02-27 Geotechnical compression test hydraulic system and testing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310061642.8A CN103091160B (en) 2013-02-27 2013-02-27 Geotechnical compression test hydraulic system and testing method

Publications (2)

Publication Number Publication Date
CN103091160A true CN103091160A (en) 2013-05-08
CN103091160B CN103091160B (en) 2015-03-11

Family

ID=48204003

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310061642.8A Active CN103091160B (en) 2013-02-27 2013-02-27 Geotechnical compression test hydraulic system and testing method

Country Status (1)

Country Link
CN (1) CN103091160B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104483065A (en) * 2015-01-16 2015-04-01 中国工程物理研究院总体工程研究所 Pressure sensor multipath air pressure calibration device and method for geotechnical model test
CN104749035A (en) * 2015-03-18 2015-07-01 西北大学 Loading device and method for soil triaxial apparatus
CN106066393A (en) * 2016-07-01 2016-11-02 山东交通学院 A kind of end of the bridge sedimentation compensation dosage test device and method of testing
CN109870363A (en) * 2019-01-30 2019-06-11 重庆瑞力比燃气设备有限责任公司 A kind of pressure-measuring method and pressure testing system
CN110146385A (en) * 2019-05-31 2019-08-20 广州大学 A kind of consolidation apparatus and measurement method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258734A (en) * 1991-08-12 1993-02-17 Daniel Rabindrana Hettiaratchi Triaxial compression testing.
US20100192563A1 (en) * 2009-01-30 2010-08-05 Robert Bosch Gmbh Hydraulic energy storage system with accumulator and method of varying charge of same
CN101813587A (en) * 2010-04-09 2010-08-25 长春市华宇试验机有限公司 Manifold rock mass simulation test detection equipment
CN102353596A (en) * 2011-08-30 2012-02-15 上海交通大学 Stress path automatic controlling triaxial apparatus
US20120137668A1 (en) * 2009-06-04 2012-06-07 Mcbride Troy O Increased power in compressed-gas energy storage and recovery
CN102818716A (en) * 2011-06-07 2012-12-12 辽宁省水利水电科学研究院 Water quality assay sampling cylinder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258734A (en) * 1991-08-12 1993-02-17 Daniel Rabindrana Hettiaratchi Triaxial compression testing.
US20100192563A1 (en) * 2009-01-30 2010-08-05 Robert Bosch Gmbh Hydraulic energy storage system with accumulator and method of varying charge of same
US20120137668A1 (en) * 2009-06-04 2012-06-07 Mcbride Troy O Increased power in compressed-gas energy storage and recovery
CN101813587A (en) * 2010-04-09 2010-08-25 长春市华宇试验机有限公司 Manifold rock mass simulation test detection equipment
CN102818716A (en) * 2011-06-07 2012-12-12 辽宁省水利水电科学研究院 Water quality assay sampling cylinder
CN102353596A (en) * 2011-08-30 2012-02-15 上海交通大学 Stress path automatic controlling triaxial apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104483065A (en) * 2015-01-16 2015-04-01 中国工程物理研究院总体工程研究所 Pressure sensor multipath air pressure calibration device and method for geotechnical model test
CN104749035A (en) * 2015-03-18 2015-07-01 西北大学 Loading device and method for soil triaxial apparatus
CN104749035B (en) * 2015-03-18 2017-03-29 西北大学 A kind of earthwork triaxial apparatus charger and loading method
CN106066393A (en) * 2016-07-01 2016-11-02 山东交通学院 A kind of end of the bridge sedimentation compensation dosage test device and method of testing
CN109870363A (en) * 2019-01-30 2019-06-11 重庆瑞力比燃气设备有限责任公司 A kind of pressure-measuring method and pressure testing system
CN110146385A (en) * 2019-05-31 2019-08-20 广州大学 A kind of consolidation apparatus and measurement method

Also Published As

Publication number Publication date
CN103091160B (en) 2015-03-11

Similar Documents

Publication Publication Date Title
CN103091160B (en) Geotechnical compression test hydraulic system and testing method
CN102494981B (en) Device for testing gas seepage and creepage coupling action of rocks
CN104614497B (en) True triaxial stream pressure fracturing, slot, seepage flow, gas drive integrated experimental system
CN104200734B (en) A kind of method of inverting coal seam bottom water bursting
CN103076230B (en) Test method and test device of mechanical properties of soil-structure contact surface
CN102323159B (en) Test method of permeameter contacting with structure in high stress, high hydraulic gradient, and large shear deformation
CN100390357C (en) Analogue experiment stand for interreaction of tunnel structure, surrounding rock and underground water
CN202330236U (en) Rock mechanical test device under gas seepage-creep combined action
CN103868799B (en) Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum
CN101620055B (en) Simple creep test device of rocks and test method thereof
CN203869959U (en) Analysis meter for rock mechanics characteristics of unconventional oil and gas reservoir
CN103398902A (en) Test apparatus for flexible loading and instantaneously unloading of high geostress, and test method
CN203795485U (en) Horizontal bearing characteristics test model of prestressed concrete pipe pile
CN204556622U (en) A kind of simulation of Rock And Soil catastrophe and pick-up unit
CN104749081A (en) Test device and test method for water pressure transferring rule of low-permeability soil body
CN104833775A (en) Three-dimensional model testing apparatus capable of simulating water outburst and mud outburst geological disasters
WO2021208837A1 (en) Ultra-large horizontal permeability test system having intelligent multi-stage loading function and variable seepage path
CN202216789U (en) Test stand of adsorption force of bottom of pile shoe of self-elevating platform
CN104020047A (en) Solidification and permeation combined testing device and method
CN104677807A (en) True-triaxial seepage characteristic and strength testing device for large-size soil sample
CN203164062U (en) Multifunctional hydraulic consolidometer for geotechnical compression test
CN102854073B (en) Embankment deformation monitoring model experiment device based on displacement tracing technology, and method thereof
CN207813597U (en) The physical simulating device of crossflow in coal measure gas reservoir reconstruction
CN205786236U (en) A kind of concrete impervious instrument
CN102324202A (en) Self-circulation axial-radial seepage Darcy law experimental apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant