CN113376019A

CN113376019A - Consolidation apparatus, consolidation apparatus test system and implementation method thereof

Info

Publication number: CN113376019A
Application number: CN202110706101.0A
Authority: CN
Inventors: 钟映
Original assignee: Shenzhen Shengwanjiang Sensing Technology Co ltd
Current assignee: Shenzhen Shengwanjiang Sensing Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-09-10

Abstract

Compared with the consolidometer in the prior art, the consolidometer, the test system of the consolidometer and the implementation method thereof provided by the invention have the following characteristics that the containing device is driven to move through the connection of the driving device and the containing device, so that the loading of a soil sample to be tested is realized, the transmission with higher precision than that of a lever type transmission is realized, the operation of the driving device can be controlled, the stepless adjustment of the loading is realized to a certain extent, the adjustment process is continuous, the influence of additional force generated when the lever type consolidometer is manually loaded is overcome, the manpower is liberated, the structure is light and handy, and the movement is convenient. Compared with a pneumatic consolidation apparatus, the consolidation apparatus and the consolidation apparatus system have the following characteristics that the pneumatic consolidation apparatus is independently driven by the driving device, the problem that the consolidation stability standard is controlled by the soil sample with the longest stabilization time due to a multi-connection device of the pneumatic consolidation apparatus is solved, and meanwhile, due to the stepless loading characteristic, the loading is accurate, the unloading is rapid, and the experimental result is accurate.

Description

Consolidation apparatus, consolidation apparatus test system and implementation method thereof

Technical Field

The invention relates to the field of geotechnical engineering experimental equipment, in particular to a consolidation apparatus, a consolidation apparatus test system and an improvement of an implementation method thereof.

Background

At present, geotechnical testing is a main means for obtaining physical and mechanical parameters of soil mass, and the national standard of the people's republic of China, namely the geotechnical test method standard (GB/T50123-1999), is an instructive specification for geotechnical testing in the fields of investigation and design in China. The consolidation apparatus is the main test instrument of the geotechnical engineering investigation geotechnical test at present. The consolidation apparatus is used for testing soil consolidation parameters in a laboratory, for example, the consolidation apparatus is used for testing parameters such as compression coefficient, compression modulus, consolidation coefficient, volume coefficient, compression index, early consolidation pressure, rebound index and secondary consolidation coefficient of soil, so as to provide design basis for subsequent construction, for example, prejudge the settlement degree of soil.

There are three main types of currently used consolidators: scale type consolidometer, single lever type consolidometer and pneumatic type consolidometer. The pound scale type consolidometer and the single lever type consolidometer apply the lever principle, load the weight manually, and are old instruments in the last 70 th century, wherein the weight has the advantage of pressure stabilization, but the whole volume of the equipment is very heavy and huge, the weight is heavy, and the operation is very inconvenient.

The air pressure consolidation apparatus is loaded according to the principle of air pressure transmission, but the accuracy and the volume of the air pressure consolidation apparatus cannot be controlled in a small range due to inaccurate air pressure control and the requirement of multi-connection in air pressure driving.

At present, the domestic common pressurizing equipment comprises hydraulic pressurizing equipment besides the three types. The scale type and the lever type are both manually loaded, and the disadvantage is that the loading of the manual weight is not only heavy, but also the impact force during loading is a main factor influencing the test precision, which can cause the inaccurate measurement of the consolidometer.

In addition, because the weights need to be added or reduced manually or the levers need to be adjusted, the test efficiency of the two devices is low, and the instruments are large in size and inconvenient to carry. The pneumatic consolidation apparatus is one of the most widely applied types in China at present, and has the main advantages of small unit volume and high automation degree, but the pneumatic consolidation apparatus needs to be controlled in a multi-connection mode actually, is complex to control, and cannot achieve the degree that the pneumatic consolidation apparatus can be applied to a construction site at any time and any place; however, the load loading process is delayed, and the loading pressure is inaccurate due to the large air compression degree of the air pressure, so that the constant pressure is difficult to maintain, the calculation of consolidation parameters is actually influenced, and the test result is very inaccurate.

Accordingly, the prior art is deficient and is subject to improvement and development.

Disclosure of Invention

In order to solve the problems, the invention provides a consolidation apparatus, a consolidation apparatus test system and an implementation method thereof, and the consolidation apparatus device which is small in size, works independently and is convenient to operate and control can be implemented.

The invention is realized by the following technical scheme:

a consolidometer comprises a containing device for containing a soil sample to be measured, a positioning device positioned at one side of the containing device,

the consolidometer further comprises:

the electric driving device is used for driving the compression of the soil sample to be measured in the containing device;

the accommodating device is arranged between the positioning device and the electric driving device;

and the sensing device is fixedly connected with the electric driving device and is used for detecting and recording the pressure and the compression displacement of the soil sample to be detected.

Further, the electric driving device also comprises a mounting seat, and the electric driving device is arranged on the mounting seat.

Further, the electric driving device is an electric cylinder.

Furthermore, one end of the electric driving device is provided with a first mounting hole; the sensing device comprises a first sensor adopting a pressure sensor, a first extending column is arranged at one end of the first sensor, and the first extending column is connected with the first mounting hole in a matching manner; the bottom of the accommodating device is provided with a force transmission plate, and the force transmission plate is fixedly connected with the other end of the first sensor.

Furthermore, the dowel plate is also provided with a second mounting hole, the other end of the first sensor is provided with a second extension column, and the second extension column is connected with the second mounting hole in a matched manner.

Furthermore, the sensing device also comprises a second sensor adopting a displacement sensor, wherein the second sensor is arranged on the upper side of the positioning device and is provided with a gauge rod which is linked with the compression displacement of the soil sample to be detected.

Furthermore, one end of the gauge rod is sleeved with a seat which is linked with the displacement sensor, and the other end of the gauge rod is fixedly connected to the outer cylinder of the force transmission plate through a rod seat.

Further, the axis of the meter lever is parallel to the axis of the first sensor and the electric drive device.

The utility model provides a consolidation apparatus test system, includes the consolidation apparatus, still includes control system and data acquisition device, control system with electric drive device electricity is connected, data acquisition device with the sensing device electricity is connected, control system is used for receiving the processing data acquisition device afferent signal carries out consolidation parameter's operation to and send command control electric drive device operates.

An implementation method of a consolidation apparatus test system comprises the following specific steps:

placing a soil sample to be tested into the containing device, presetting consolidation test software in a control system, controlling the output pressure of the electric cylinder by the consolidation test software, and setting the holding time of the electric cylinder;

and (3) starting consolidation test software, outputting force stage by the electric cylinder according to a preset program, measuring corresponding displacement, recording data by the data acquisition device, and processing and outputting consolidation parameters by the consolidation test software according to a preset algorithm.

The invention has the beneficial effects that: compared with the consolidometer in the prior art, the consolidometer, the test system of the consolidometer and the implementation method thereof provided by the invention have the following characteristics that the containing device is driven to move through the connection of the driving device and the containing device, so that the loading of a soil sample to be tested is realized, the transmission with higher precision than that of a lever type transmission is realized, the operation of the driving device can be controlled, the stepless adjustment of the loading is realized to a certain extent, the adjustment process is continuous, the influence of additional force generated when the lever type consolidometer is manually loaded is overcome, the manpower is liberated, the structure is light and handy, and the movement is convenient. Compared with a pneumatic consolidation apparatus, the consolidation apparatus and the consolidation apparatus system have the following characteristics that the pneumatic consolidation apparatus is independently driven by the driving device, the problem that the consolidation stability standard is controlled by the soil sample with the longest stabilization time due to a multi-connection device of the pneumatic consolidation apparatus is solved, and meanwhile, due to the stepless loading characteristic, the loading is accurate, the unloading is rapid, and the experimental result is accurate.

Drawings

FIG. 1 is a perspective view of a consolidator of the present invention;

FIG. 2 is a schematic diagram of the consolidator system of the present invention;

FIG. 3 is a schematic cross-sectional view of a consolidator according to the invention;

FIG. 4 is a schematic cross-sectional view of a consolidator of the present invention;

FIG. 5 is a schematic cross-sectional view of a containment device of the present invention;

fig. 6 is a schematic structural diagram of another embodiment of the accommodating device of the invention.

Detailed Description

In order to more clearly and completely describe the technical scheme of the invention, the invention is further described with reference to the accompanying drawings.

Examples

Referring to fig. 1, the present invention provides a preferred embodiment of a consolidator, which includes a receiving device 5 for receiving a soil sample to be tested, specifically, but not limited to, the receiving device 5 may be a common receiving cavity in which the soil sample to be tested is placed, a mounting base 1, and a positioning device 6 located at one end side of the receiving device 5.

The consolidometer further comprises: the electric driving device 2 is fixedly arranged on the mounting base 1, one end side of the accommodating device 5, which is far away from the positioning device 6, is set as a movable pressure applying side and is fixedly connected with the electric driving device 2, and the accommodating device 5 is driven by the electric driving device 2 to load a soil sample to be detected in the accommodating device 5, so that displacement close to or far away from the positioning device 6 is generated.

A sensing device 4 is also provided, the sensing device 4 having a structure connected to the positioning device 6 and the driving device 2, respectively, for detecting and recording the force and displacement output by the electric driving device 2.

Referring to fig. 1 and 5, in a preferred embodiment of the consolidator of the present invention, the containing device 5 further includes a sleeve 52, a pressure transmitting plate 53, a soil cutting ring knife 54 and a cover ring 55, the sleeve 52 forms an upward containing space, the pressure transmitting plate 53 is fixed on the positioning device 6 and the corresponding frame from above, different soil cutting ring knives 54 can be selected according to different requirements of the experiment, then the soil cutting ring knife 54 forms a containing space with the bottom of the sleeve 52, a large block of first permeable stone (plate) 501 and the prepared soil sample 502 to be tested can be contained in the containing space, and a second permeable stone (plate) 503 can be further disposed above the soil sample 502 to be tested, so that the soil sample 502 to be tested before the first permeable stone 501 and the second permeable stone 503 can be compressed and deformed according to the testing process of the experiment.

After placing the above-mentioned soil sample that awaits measuring in proper order, can cover lid ring 55 again, still cover in the top of lid ring 55 and be equipped with pass clamp plate 53, pass the top of clamp plate 53 and be equipped with the constant head tank, positioner 6's one end be the locating pin, be used for with constant head tank fixed connection. When the electric driving device 2 drives the sleeve 52 in the accommodating device 5 to move upwards together with the soil sample to be tested, the positioning pin is fixed and accommodated in the positioning groove, and the positioning device 6 can enable the whole accommodating device 5 to be always positioned on the central axis of the output end of the electric driving device 2.

Although the lever type consolidation instrument has intuitive loading, good stability and flexible and adjustable pressurizing process, the full-automatic pneumatic consolidation instrument has low automation degree and high labor intensity, and on the basis, the full-automatic pneumatic consolidation instrument is derived, so that the labor intensity and human errors are greatly reduced, the automation degree of the test is improved, but because each instrument can only be applied with the same initial pressure and loading sequence by a pneumatic controller, the consolidation stability standard is controlled by the soil sample with the longest stabilization time.

In the existing full-automatic pneumatic consolidation apparatus, one pneumatic controller at least needs to control two consolidation apparatuses, if one pneumatic controller is configured for each two consolidation apparatuses and one of the two consolidation apparatuses is arranged during use, the full-automatic consolidation apparatus can be reluctantly controlled, but because each consolidation apparatus needs to be separately arranged, the method causes the over-high empty rate of the apparatus, the number of the required pneumatic controllers increases sharply, and the price of the pneumatic controllers is high, so in conclusion, the testing efficiency of the pneumatic consolidation apparatus is not high, and the pneumatic consolidation apparatus cannot be popularized in a large scale due to the consideration of the aspects of economy and working efficiency.

The invention provides an independent electric driving idea for solving the driving problem, and compared with a lever type consolidometer, the invention utilizes a single electric driving device 2 and has the following characteristics that the transmission with higher transmission precision is adopted, and simultaneously, the system is utilized to control the operation of the electric driving device 2, thereby realizing the stepless regulation of loading to a certain extent, and the regulation process is continuous, overcoming the influence of additional force generated when the lever type consolidometer is manually loaded, simultaneously releasing the manpower, having light and handy structure and being convenient for moving.

Meanwhile, compared with the pneumatic consolidation apparatus, the electric cylinder consolidation apparatus has the following characteristics that the electric driving device 2 is adopted for independent driving, the problem that the consolidation stability standard is controlled by the soil sample with the longest stabilization time due to a multi-connection device of the pneumatic consolidation apparatus is solved, and meanwhile, due to the stepless loading characteristic, the loading is accurate, the unloading is rapid, and the experimental result is accurate. The general consolidometer adopting the dial plate to measure pressure and displacement data is improved, the sensing device 4 is arranged at the output end of the electric driving device 2, the accommodating device 5 is arranged at one side of the sensing device 4, the load applied by the electric driving device 2 firstly passes through the sensing device 4 and then is applied to the soil sample to be measured, the driving force applied by the electric driving device 2 and the moving distance of the driving head can be accurately measured, and the human error possibly generated by manually collecting data is avoided.

Further, the electric drive device 2 is an electric cylinder. Specifically, the electric cylinder is used as a standard output loading mode to replace a traditional single lever type or air pressure type output loading device, the electric cylinder is a modular product which is designed by integrating a servo motor and a lead screw, the theoretical control precision of the thrust of the electric cylinder reaches 0.1% of the maximum thrust, the position control precision reaches 0.01mm, the electric cylinder is simple in mechanical structure and higher in speed regulation precision, and the electric cylinder is provided with a computer interface and can be controlled by a computer, so that the control precision is facilitated, and the human error is avoided to the greatest extent.

In other embodiments of the present invention, a motor may be used to drive, for example, an electric push rod, then the rotation speed of the motor is reduced through a gear mechanism, and then the rotation motion output by the motor is converted into a linear motion through a ball screw, so as to output a linear force and further drive the motion of the accommodating device 5.

Referring to fig. 3 and 4, in a further preferred embodiment of the consolidator of the present invention, one end of the electric driving device 2 is provided with a first installation hole 21, the sensing device 4 includes a first sensor 41 which is a pressure sensor, one end of the first sensor 41 is provided with a first extending column 411, the first extending column 411 extends into the first installation hole 21 and is fixedly connected to the first installation hole 21, a force transmitting plate 51 is further provided at the bottom of the accommodating device 5 and at the bottom side of the sleeve 52, and the force transmitting plate 51 is fixedly connected to the other end of the first sensor 41.

The first sensor 41 is arranged between the receiving device 5 and the output of the electric drive 2 and is used to detect the drive force exerted by the drive 2 more accurately. The first mounting hole 21 is provided, so that the first extending column 411 on the first sensor 41 can extend into the first mounting hole 21, not only the connection between the first sensor 41 and the driving device 2 is tighter, but also the measured driving force is more accurate. Meanwhile, in the present invention, one end and the other end both refer to two directions on the same straight line, and the two directions are opposite, and the other end of the first sensor 41 is fixedly connected with the force transmission plate 51, which may be welded, screwed, etc.

Referring to fig. 3 and 4 (the first sensor 41 is omitted in fig. 4), further, a second mounting hole 511 is provided on the force transmission plate 51, a second extending column 412 is provided at the other end of the first sensor 41, and the second extending column 412 extends into the second mounting hole 511 and is fixedly connected with the second mounting hole 511.

As a further improvement of the above scheme, the other end of the first sensor 41 is provided with a second extending column 412, and the second extending column 412 extends into the second mounting hole 511 and is fixedly connected with the second mounting hole 511, so that the structure of the first sensor 41 is more symmetrical, and meanwhile, the connection with the force transmission plate 51 is tighter, and the load transmission is more stable.

Further, as shown in fig. 1, a rod base 3 is sleeved on an outer cylindrical surface of the first sensor 41, a meter rod 31 is fixedly arranged on the rod base 3, an axis of the meter rod 31 is parallel to an axis of the first sensor 41, so that a compression displacement of the soil sample to be measured can be transmitted outwards through the movement of the meter rod 31 together with the rod base 3, the first sensor 41 and the like, and specifically, the other end of the meter rod 31 is connected to a displacement sensor, namely, a second sensor 42.

Referring to fig. 1, specifically, the rod base 3 is sleeved on an outer cylindrical surface of the pressure sensor 41 and fixed by a bolt, the meter rod 31 is arranged on the rod base 3, and an axis of the meter rod 31 is parallel to an axis of the pressure sensor, so that the whole structure is more compact. It should be noted that the setting of the gauge rod 31 of the present invention is not limited to this fixing manner, and may be connected to the lower side of the accommodating device 5 by other fixing manners, so long as the consolidation displacement of the soil sample to be measured is conveniently transferred.

Referring to fig. 2, further, the sensing device 4 further includes the second sensor 42, a seat 14 is sleeved on the upper end of the meter rod 31, and the second sensor 42 is installed between the seat 14 and the positioning device 6.

Specifically, the second sensor 42 is a displacement sensor, and the seat 14 is similar to an X-shaped block of the capital letter, and one end of the seat is sleeved on the gauge rod 31, can be assembled and adjusted, and can be locked by a bolt after being fixed in position. Specifically, the seat 14 can be adjusted by moving up and down along the gauge rod 31 to flexibly change the position, and can be adjusted by rotating around the gauge rod 31 as an axis, and then fixed by bolts after adjusting the height and the direction. At this point, the seat 14 is no longer movable with respect to the stem 31, the other end of the seat 14 being used to grip the displaceable part of the displacement sensor 42, the displacement sensor 42 being intended to abut against the positioning means 6 when the grip is completed.

Referring to fig. 6, in another embodiment of the present invention, the lever base 3 may also be disposed on an outer cylindrical surface of the force transmission plate 51, and the meter lever 31 is fixed by the lever base 3. In the foregoing embodiment, when the rod seat 3 is fixed to the first sensor 41, the pressure sensor may deform during the process of outputting force by the electric cylinder of the consolidometer, so that the data measured by the second sensor may increase a slight error of deformation of the pressure sensor, resulting in inaccurate result. Therefore, the rod seat 3 is arranged on the outer cylindrical surface of the force transmission plate 51, so that the problem can be solved, and the measuring accuracy of the second sensor 42 is ensured.

Further, in a preferred embodiment of the consolidator of the present invention, as shown in fig. 1, the mounting base 1 includes at least two support rods 11 and a cross beam 12 as a support frame, and the support rods 11 penetrate and are fixed to the cross beam 12. The two support rods 11 are arranged parallel to each other and extend through the cross beam 12, and the position of the cross beam 12 can be adjusted, for example, by using bolts mounted on the support rods 11.

In other embodiments of the present invention, three support rods 11 may be used, so that the whole structure is more stable, and the shape of the beam 12 is changed to a beam 12 that can be fixed using three support rods. The positioning device 6 penetrates and is fixed on the cross beam 12, one end of the positioning device 6 abuts against the second sensor 42, and the other end of the positioning device 6 abuts against a pressure transmission plate 53 of the accommodating device 5.

Specifically, in the preferred embodiment of the consolidator of the present invention, the second sensor can be adjusted and initialized, for example but not limited to, the second sensor 42 is set, when abutting against one end of the positioning device 6, the initial position is set to be a position with a displacement of 0, moving up to positive, and moving down to negative, so as to input to the drive processing system, and the accuracy of the data can be evaluated during the verification process.

Referring to fig. 2, the present invention further provides a preferred embodiment of a consolidation apparatus testing system, which includes the mechanical structure of the consolidation apparatus, and may further include a control system 9 and a data acquisition device 8, specifically an industrial personal computer or a personal computer PC, where the control system 9 is electrically connected to the electric driving device 2 for controlling the output force, the holding time, the output sequence, and the like, the data acquisition device 8 is electrically connected to the sensing device 4, that is, two sensors, and the control system 9 may receive and process signals transmitted from the data acquisition device 8, calculate and process consolidation parameters according to a preset processing algorithm, and simultaneously issue an instruction to control the operation of the electric driving device 2.

The data acquisition device 8 acquires the output force value of the electric cylinder from the first sensor 41, and acquires the consolidation displacement data of the soil sample to be measured from the second sensor 42. Each measured data is sent to a control system 9 by a data acquisition device 8, and after original data is processed by consolidation test software running on the control system 9, corresponding data such as force, displacement and the like are obtained, wherein the data acquisition device 8 adopts an NI data acquisition card with high measurement precision, and an integrated test automation data acquisition platform is built by combining system design software such as LabVIEW. The system can perform high-precision data measurement, and ensure long-term effectiveness of precision through NI calibration and system service.

The consolidometer testing system of the present invention is a universal pressure output and measurement device. A servo motor in the electric cylinder drives a roller screw rod to apply pressure to the soil sample to be detected through a bearing and a synchronous wheel, and the pressure is regulated through closed loop control. Through the change of pressure sensor 41 measurement pressure size, control system 9 can adopt the accurate target pressure value that reaches fast of embedded single chip microcomputer control servo motor of high performance to stably keep the target pressure value for a period, specifically carry out according to consolidation experiment demand can, no longer give consideration to here.

The invention also provides a preferred embodiment of the implementation method of the consolidation apparatus test system, which comprises the following specific steps:

attaching filter paper to two ends of a soil sample to be tested, arranging the filter paper in the accommodating device 5 according to the requirement of consolidation test software preset in a control system 9, controlling the output pressure of the electric cylinder by the consolidation test software, and setting the loading value range and the corresponding holding time of the electric cylinder;

step two, a soil cutting ring 54 is arranged in the accommodating device 5, a first permeable stone, a soil sample to be detected and a second permeable stone are sequentially arranged, then a cover ring 55 is covered, and finally a pressure transmission plate 53 is arranged on the upper portion of the cover ring 55;

step three, the accommodating device 5 is arranged in the consolidation apparatus and aligned with the positioning device 6 for assembly;

and step four, starting consolidation test software, sequentially increasing output force of the electric cylinder according to control requirements, correspondingly recording the force value of the first sensor and the displacement value of the second sensor until all corresponding processes are finished according to detection requirements of the consolidation instrument, recording corresponding data by the data acquisition device 8, realizing the processing and output of consolidation parameters by the consolidation test software, and controlling the final end of the test.

Specifically, the above working steps are only preferred implementation steps, and may be adjusted or modified according to different usage scenarios, for example, the set loading value range in step one may be adjusted to step four. In a specific embodiment application, the detection operation of the consolidometer is generally to firstly maintain a constant first-stage force on a soil sample to be detected, and maintain the force for a predetermined time, for example, several hours to several days, and the detection operation can be preset according to different soil qualities of the soil sample, and detect final consolidation displacement data; and then applying a second stage load which is kept constant, wherein the second stage load is usually stronger than the first stage load, and is also kept for a predetermined period of time, such as hours to days, the second stage load can be preset in the system according to different soil sample soil qualities, and the final second stage consolidation displacement data is detected. This is done several times in sequence until all the consolidation parameters necessary are obtained. The test data of each stage and the test data of the final stages are processed in the test system according to a preset algorithm and are output or displayed for subsequent design and construction judgment, such as prediction of the settlement of the filling soil and the like.

In summary, compared with a lever type consolidometer, the consolidometer and the consolidometer system provided by the invention have the following characteristics that a motor with higher transmission precision is adopted for transmission, and meanwhile, the system is utilized for controlling the operation of the motor, so that the stepless regulation of loading can be realized to a certain extent, the regulation process is continuous, the influence of additional force generated by the lever type consolidometer during manual loading is overcome, meanwhile, the manpower is liberated, the structure is light and handy, the movement is convenient, particularly, in the scheme of adopting an electric cylinder, the pressure output of the electric cylinder is more stable and controlled, and the test process of the consolidometer is matched very well. Compared with a pneumatic consolidation apparatus, the consolidation apparatus and the consolidation apparatus system have the following characteristics that the pneumatic consolidation apparatus is independently driven by the electric driving device 2, the problem that the consolidation stability standard is controlled by the soil sample with the longest stabilization time due to a multi-connection device of the pneumatic consolidation apparatus is solved, and meanwhile, due to the stepless loading characteristic, the loading is accurate, the unloading is rapid, and the experimental result is accurate.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Naturally, the above-mentioned embodiments of the present invention are described in detail, but it should not be understood that the scope of the present invention is limited thereby, and other various embodiments of the present invention can be obtained by those skilled in the art without any inventive work based on the present embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A consolidometer comprises a containing device for containing a soil sample to be measured, a positioning device positioned at one side of the containing device,

it is characterized in that the consolidation apparatus further comprises:

2. The consolidometer of claim 1 further comprising a mounting base on which the motorized drive is disposed.

3. The consolidometer according to claim 2 wherein the electric drive is an electric cylinder.

4. The consolidometer according to claim 3, wherein one end of the electric driving device is provided with a first mounting hole; the sensing device comprises a first sensor adopting a pressure sensor, a first extending column is arranged at one end of the first sensor, and the first extending column is connected with the first mounting hole in a matching manner; the bottom of the accommodating device is provided with a force transmission plate, and the force transmission plate is fixedly connected with the other end of the first sensor.

5. The consolidometer of claim 4 wherein the dowel plate is further provided with a second mounting hole, and the other end of the first sensor is provided with a second extending column, and the second extending column is connected with the second mounting hole in a matching manner.

6. The consolidometer according to claim 4, wherein the sensing means further comprises a second sensor using a displacement sensor, the second sensor being disposed on the upper side of the positioning means and having a gauge rod for linking the compression displacement of the soil sample to be measured.

7. The consolidometer according to claim 6, wherein one end of the gauge rod is sleeved with a base for linking the displacement sensor, and the other end of the gauge rod is fixedly connected to the outer cylinder of the force transmission plate through a rod base.

8. The consolidometer of claim 7, wherein the axis of the gauge bar is parallel to the axis of the first sensor and the electric drive.

9. A consolidometer testing system, characterized in that, includes the consolidometer of any one of claims 1-8, further includes a control system and a data acquisition device, the control system is electrically connected with the electric driving device, the data acquisition device is electrically connected with the sensing device, the control system is used for receiving and processing the signals transmitted by the data acquisition device and carrying out the operation of consolidation parameters, and sending out commands to control the electric driving device to operate.

10. A method for implementing a consolidometer testing system, which is used for the consolidometer testing system of claim 9, comprises the following steps: