CN114062082B - Device and method for preparing undisturbed soil triaxial sample through spin-drop - Google Patents

Abstract

The invention discloses an undisturbed soil triaxial sample spin-down preparation device and method, comprising a supporting mechanism, a cutting mechanism and a supporting mechanism; the supporting mechanism includes a base, and a leveling assembly is arranged on the base; clamping device; the cutting mechanism includes a power assembly, the bottom end of which is detachably connected with a cutter head assembly, and the cutter head assembly is used to cut undisturbed soil; the support mechanism includes a support rod set slidingly connected with the cutting mechanism, and the bottom end of the support rod set A lifting power assembly is provided, and the lifting power assembly is fixedly installed on the top of the base. The invention has simple structure, simple operation method, little influence on undisturbed soil during the cutting process, avoids influence of uncertain factors and human factors during the cutting process, improves the method of taking undisturbed soil, and improves the accuracy of test data.

Description

A kind of undisturbed soil triaxial sample spin-down preparation device and method

technical field

The invention relates to the field of geotechnical engineering, in particular to an undisturbed soil triaxial sample spin-down preparation device and method.

Background technique

The design and construction of geotechnical engineering needs to be determined according to the geological conditions of the project site. Therefore, it is necessary to survey the construction site before design and construction to determine the mechanical properties and stability of the undisturbed soil on site. The determination of the mechanical properties of the undisturbed soil requires The undisturbed soil triaxial sample is used, and the triaxial compression test of the undisturbed triaxial sample can be used to determine the shear strength of the soil sample under different stress paths and drainage conditions. When the undisturbed soil is subjected to triaxial mechanical test, it is necessary to make the undisturbed soil sample obtained on site into a standard sample; in order to reduce the disturbance of the undisturbed soil sample during the sample preparation process, appropriate sample preparation equipment must be used, usually Known as a soil cutter or sampler.

At present, the sample preparation device in the laboratory generally adopts the cutting method with the soil sample rotating and the tool stationary. The principle refers to the machine tool. In this method, the soil sample rotates at a high speed during the cutting process, which may easily cause the obtained soil sample to be discretely broken, resulting in experimental data and actual data. There is a large deviation in the situation; even if there are a small amount of sample preparation devices with stationary soil samples and rotating tools, the cutting tools are fixed, and a direct cutting will easily cause the soil samples to crack due to the large amount of feed. Adjustment requires frequent tool replacement and low cutting efficiency. Therefore, there is an urgent need for an undisturbed soil triaxial sample spin-down preparation device that can perform multiple cuttings conveniently.

Contents of the invention

The object of the present invention is to provide an undisturbed soil triaxial sample spin-down preparation device and method to solve the above-mentioned problems in the prior art.

In order to achieve the above object, the present invention provides the following scheme: the present invention provides a kind of undisturbed soil triaxial sample spin-down preparation device, comprising

A supporting mechanism, the supporting mechanism is used to install the undisturbed adobe material, the supporting mechanism includes a base, the base is provided with a leveling assembly; the top of the base is provided with a clamping device;

a cutting mechanism, the cutting mechanism is arranged above the supporting mechanism, and is used for cutting the undisturbed clay material installed at the top of the clamping device; the cutting mechanism includes a cutting power assembly, and the cutting power assembly A cutter head assembly is detachably connected to the bottom end of the bottom end, and the cutter head assembly is used for cutting the undisturbed adobe material;

A supporting mechanism, the supporting mechanism is arranged between the supporting mechanism and the cutting mechanism, and is used to support the cutting mechanism and drive the cutting mechanism to move up and down; the supporting mechanism includes a sliding connection with the cutting mechanism The support rod group, the bottom end of the support rod group is provided with a lifting power assembly, and the lifting power assembly is fixedly installed on the top of the base.

Preferably, the base includes a bottom plate, the top of the bottom plate is fixedly connected with a top plate, a mounting groove is opened in the center of the top plate, and the clamping device is arranged in the mounting groove.

Preferably, the leveling assembly includes several leveling pillars and a leveling device, several of the leveling pillars are vertically fixed on the top surface of the base at equal intervals in the circumferential direction, and the top surface of the leveling pillars is connected to the top plate The bottom surface is affixed; the leveling device is arranged on the top of the clamping device.

Preferably, the clamping device includes a support mechanism arranged in the installation groove and a clamping assembly fixedly installed on the top surface of the top plate; the support mechanism includes a support mechanism fixedly installed at the bottom end of the installation groove Support the push rod, the output end of the support push rod is fixedly connected with a support plate, the support plate is compatible with the installation groove, and the level measuring device is arranged on the top of the support plate; The clamping device is arranged concentrically with the installation groove.

Preferably, the clamping assembly includes a fixed ring fixed on the top surface of the top plate, and an adjustment ring is connected to the outer rotation of the fixed ring; the inner cavity of the adjustment ring is provided with several arc-shaped grooves, and the arc-shaped One end of the clamping rod is slidably connected in the slot, and the other end of the clamping rod protrudes from the side wall of the fixed ring and is slidably connected with the fixed ring.

Preferably, the cutting power assembly includes a power frame slidingly connected with the support rod group, a cutting motor is fixedly installed on the top end of the power frame, and the output end of the cutting motor extends into the inner cavity of the power frame and engages A cutting ring is connected; the cutting ring is rotatably connected with the power frame, and the bottom end of the cutting ring is detachably connected with a cutter head assembly.

Preferably, the cutter head assembly includes a body ring detachably connected to the cutting ring, a cutting gear is rotatably connected in the cavity of the body ring, and the top surface of the cutting gear is meshed and connected at equal intervals in the circumferential direction. There are several cutting tool holders, and the cutting tool holders are slidingly connected with the side wall of the body ring; a cutting knife is fixedly connected to the end of the cutting tool holders toward the inner circle of the body ring.

A method for preparing undisturbed soil triaxial sample spin down, comprising the following steps:

Sampling of the undisturbed adobe material and checking the internal fluidity of the undisturbed adobe material;

leveling support mechanism;

Clamp the undisturbed adobe material;

Set up the cutting mechanism and adjust the cutter head assembly;

Cutting undisturbed adobe material;

Clean up the cuttings to obtain undisturbed soil triaxial samples.

Preferably, in the step of cutting the undisturbed adobe, the cutting needs to be divided into several times, each cutting is cut from the top to the bottom of the undisturbed adobe, then the cutting mechanism is raised, and the cutter head assembly is adjusted again for cutting.

Preferably, in the step of cutting the undisturbed adobe material, stop cutting each time the height of the undisturbed adobe material is 1/3-1/2, and clean up the chips once.

The present invention discloses the following technical effects: the present invention discloses a device and method for preparing an undisturbed triaxial sample of undisturbed soil. The verticality of the shaft sample is high, and it will not be tilted, so that the test effect of the undisturbed soil triaxial sample is good, and the accuracy of the test result is high; the cutting mechanism drives the cutter head assembly to rotate through the power assembly, and cuts the original state fixed on the supporting mechanism. The adobe material, the undisturbed adobe material is fixed, and the tool is rotated, which reduces the influence of the cutting process on the undisturbed adobe material, and reduces the test error of the obtained undisturbed soil triaxial sample; the cutter head assembly is convenient to adjust the cutting amount of the tool, which is convenient and quick without disassembly Tool replacement, high cutting efficiency. The invention has the advantages of simple structure, simple operation method, little influence on the undisturbed clay material in the cutting process, avoids the influence of uncertain factors and human factors in the cutting process, and improves the accuracy of test data.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the three-dimensional view of the undisturbed soil triaxial sample spin-down preparation device of the present invention;

Fig. 2 is a top view of the supporting mechanism of the present invention;

Fig. 3 is the sectional view of A-A in Fig. 2;

Fig. 4 is the structural representation of clamping device;

Fig. 5 is a three-dimensional view of the cutter head assembly of the present invention;

Fig. 6 is a structural schematic diagram of the cutter head assembly of the present invention;

Fig. 7 is the sectional view of B-B in Fig. 6;

Fig. 8 is a schematic diagram of the use process of the undisturbed soil triaxial sample spin-down preparation device of the present invention;

Fig. 9 is a structural schematic diagram of the supporting push rod of the present invention;

Among them, 1. Undisturbed adobe material; 2. Base; 3. Leveling assembly; 4. Clamping device; 5. Cutting power assembly; 6. Cutter assembly; 7. Support rod group; 8. Lifting power assembly; 21. Bottom plate; 22, top plate; 23, installation slot; 31, leveling pillar; 32, leveling device; 41, support push rod; 42, support plate; 43, fixed ring; 44, adjustment ring; 45, arc Groove; 46, clamping rod; 51, power frame; 52, cutting motor; 53, cutting ring; 61, body ring; 62, cutting gear; 63, driving gear; 64, cutting tool rest; 65, cutter; 66 , adjusting hole; 651, handle of a knife; 652, blade; 71, smooth rod; 72, screw rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figures 1-9, the present invention provides a spin-down preparation device for undisturbed soil triaxial samples,

include

A supporting mechanism, the supporting mechanism is used to install the undisturbed adobe material 1, the supporting mechanism includes a base 2, a leveling assembly 3 is arranged on the base 2; a clamping device 4 is arranged on the top of the base 2;

Cutting mechanism, the cutting mechanism is arranged above the supporting mechanism, and is used for cutting the undisturbed adobe material 1 installed on the top of the clamping device 4; the cutting mechanism includes a cutting power assembly 5, and the bottom end of the cutting power assembly 5 is detachably connected with a knife The disk assembly 6, the cutter head assembly 6 is used for cutting the undisturbed adobe material 1;

The supporting mechanism is arranged between the supporting mechanism and the cutting mechanism, and is used to support the cutting mechanism and drive the cutting mechanism to move up and down; the supporting mechanism includes a supporting rod group 7 slidingly connected with the cutting mechanism, and the bottom end of the supporting rod group 7 is set Lifting power assembly 8 is arranged, and lifting power assembly 8 is fixedly installed on the top of base 2 .

The device balances the base 2 and the clamping device through the leveling assembly 3, so that the undisturbed soil triaxial sample obtained by cutting the undisturbed soil billet 1 has a high verticality and will not be tilted, so that the test of the undisturbed soil triaxial sample The effect is good, and the accuracy of the test results is high; the cutting mechanism drives the cutter head assembly 6 to rotate through the power assembly, and cuts the undisturbed adobe material 1 fixed on the supporting mechanism. The impact of material 1 reduces the test error of the obtained undisturbed soil triaxial sample; the cutter head assembly 6 is convenient to adjust the cutting amount of the tool, which is convenient and quick, and does not need to be disassembled to replace the tool, and the cutting efficiency is high.

Further, the support rod group 7 includes two smooth rods 71 fixedly connected to the base 2 and a screw rod 72 connected to the lifting power assembly 8 in transmission, the screw rod 72 is screwed to the lifting power assembly 8, and the smooth rod 71 is connected to the cutting The power assembly 5 is slidably connected, and the rotation of the screw rod 72 drives the lifting movement of the cutting mechanism.

In a further optimized solution, the base 2 includes a bottom plate 21 , a top plate 22 is fixedly connected to the top of the bottom plate 21 , and a mounting groove 23 is opened in the center of the top plate 22 , and the clamping device 4 is arranged in the mounting groove 23 . Base plate 21 is fixed on the flat ground of test site during use, then top plate 22 is leveled by leveling assembly 3, guarantees the verticality of the undisturbed adobe material 1 that is clamped on top plate 22.

To further optimize the solution, the leveling assembly 3 includes several leveling pillars 31 and a leveling device 32, and several leveling pillars 31 are vertically fixed on the top surface of the base 2 at equal intervals in the circumferential direction, and the top surface of the leveling pillars 31 is connected to the bottom surface of the top plate 22. Fixing; the leveling device 32 is arranged on the top of the clamping device 4 . Through the levelness of the clamping device 4 installed on the top plate 22 by the leveling device 32 , the leveling pillar 31 between the bottom plate 21 and the top plate 22 is moved for leveling. The working principle and leveling method of the leveling pillar 31 are prior art, and will not be repeated here.

Further, the leveling device 32 includes but is not limited to a bubble level and a level sensor, the working principles and usage methods of the two are in the prior art, and will not be repeated here.

In a further optimization scheme, the clamping device 4 includes a support mechanism arranged in the installation groove 23 and a clamping assembly fixedly installed on the top surface of the top plate 22; the support mechanism includes a support push rod 41 fixedly installed at the bottom end of the installation groove 23 , the output end of the support push rod 41 is fixedly connected with a support plate 42, the support plate 42 is compatible with the installation groove 23, and the level measuring device 32 is arranged on the top of the support plate 42; the clamping device 4 and the installation groove 23 Concentrically arranged; the clamping assembly includes a fixed ring 43 fixed on the top surface of the top plate 22, and an adjustment ring 44 is connected to the outside of the fixed ring 43 for rotation; the inner cavity of the adjustment ring 44 is provided with a number of arc-shaped grooves 45, and slides in the arc-shaped grooves 45 One end of the clamping rod 46 is connected, and the other end of the clamping rod 46 protrudes from the side wall of the fixing ring 43 and is slidably connected with the fixing ring 43 . During use, the top plate 22 is leveled by the leveling assembly 3, and then the supporting plate 42 is leveled to ensure the verticality of the undisturbed clay material 1 fixed on the supporting plate 42; The distances are not equal, and the two ends of the arc groove 45 change smoothly; when in use, the support plate 42 is lifted out of the installation groove 23 by the support push rod 41, and then the undisturbed clay material 1 is placed on the support plate 42, Then the supporting plate 42 is lowered into the installation groove 23; the adjusting ring 44 is rotated, and the arc groove 45 rotates with the adjusting ring 44, and the clamping rod 46 is stretched out toward the undisturbed adobe material 1 under the promotion of the arc groove 45, and finally the The undisturbed adobe material 1 is clamped at the center of the supporting plate 42 . Several supporting rods move synchronously to ensure that the position of the undisturbed adobe material 1 will not deviate.

In a further optimization scheme, the cutting power assembly 5 includes a power frame 51 that is slidingly connected to the support rod group 7, a cutting motor 52 is fixedly installed on the top of the power frame 51, and the output end of the cutting motor 52 extends into the inner cavity of the power frame 51 and is meshed with a Cutting ring 53 ; the cutting ring 53 is rotatably connected with the power frame 51 , and the bottom end of the cutting ring 53 is detachably connected with the cutter head assembly 6 . The cutting motor 52 drives the cutting ring 53 to rotate, and then drives the cutter head assembly 6 below the cutting ring 53 to rotate at high speed to complete the cutting work.

Further, the rotation speed of the cutting motor 52 includes several gears, which are selected according to different soil properties of the undisturbed adobe material 1 .

In a further optimization solution, the cutter head assembly 6 includes a body ring 61 detachably connected to the cutting ring 53, a cutting gear 62 is rotatably connected in the ring body cavity of the body ring 61, and the top surface of the cutting gear 62 is meshed and connected at equal intervals in the circumferential direction. A plurality of cutting tool holders 64 are slidably connected to the side wall of the body ring 61 ; a cutting knife 65 is fixedly connected to the end of the cutting tool holders 64 toward the inner circle of the body ring 61 . The cutting gear 62 rotates, driving the cutting tool rest 64 meshing with the top of the cutting gear 62 to move toward or away from the center simultaneously, thereby adjusting the position of the cutting knife 65 and changing the cutting diameter.

Further, the top of the body ring 61 is provided with an adjustment hole 66, and the lower end of the adjustment hole 66 is rotatably connected with a driving gear 63, and the side wall of the driving gear 63 is meshed with the cutting gear 62, and the driving gear 63 is rotated by a hexagonal wrench to drive the cutting gear. 62 turns to complete the adjustment.

Further, the cutting knife 65 includes a knife handle 651, the top of the knife handle 651 is affixed to the cutting tool holder 64, the bottom end of the knife handle 651 is affixed with a blade 652, and several blades 652 form a ring, and the blade 652 has a certain angle. Easy to cut.

A further optimization plan for the user of an undisturbed soil triaxial sample spin-down preparation device, including the following steps:

The undisturbed soil material 1 is sampled and the internal fluidity of the undisturbed soil material 1 is checked; the soil sample of the target formation is taken through a special sampler to obtain the undisturbed soil material 1, and the shape of the undisturbed soil material 1 is larger than the final undisturbed soil triaxial sample, Leave enough margin.

Leveling support mechanism: through the measurement of the evaluation device, adjust the leveling pillar 31, level the top surface of the support plate 42 in the installation groove 23, and keep the verticality of the undisturbed adobe material 1 after installation.

Clamp the undisturbed adobe material 1; support and push it dry to raise the support rod out of the installation groove 23, then put the undisturbed adobe material 1 on the support plate 42, then lower the support plate 42 into the installation groove 23, rotate and adjust The ring 44 and the arc groove 45 rotate with the adjusting ring 44, and the clamping rod 46 stretches out to the undisturbed adobe material 1 under the promotion of the arc groove 45, and finally the undisturbed adobe material 1 is clamped at the center of the support plate 42.

Set up the cutting mechanism and adjust the cutter head assembly 6; install the cutting structure to a certain position above the undisturbed adobe 1, and then use a hexagonal wrench to turn the driving gear 63 to drive the cutting tool holder 64 meshing with the top of the cutting gear 62 to move toward the center or away from it. , and then adjust the position of the cutter 65, and then change the cutting diameter, so that the cutting diameter is slightly smaller than the diameter of the undisturbed adobe material 1; the cutting feed rate is determined according to the soil properties of the undisturbed adobe material 1.

Cut the undisturbed adobe material 1; turn on the cutting motor 52, drive the cutter 65 to rotate, and cut the outer edge of the undisturbed adobe material 1; at the same time, open the lifting power assembly 8, drive the screw rod 72 to rotate, and slowly lower the cutting mechanism until the cutter 65 cuts to Close to the position of the clamping device; stop the cutting motor 52, reverse the lifting power assembly 8 to raise the cutting structure above the top of the undisturbed adobe 1; reduce the cutting diameter again, and repeat the cutting steps until the diameter of the undisturbed adobe 1 reaches scheduled request.

Clean up the cuttings to obtain undisturbed soil triaxial samples. Clean up the broken soil that has been cut, then saw off the undisturbed soil material 1 from the cutting end of the lower end, and saw off a section above the undisturbed adobe material 1, so that the remaining undisturbed adobe material 1 is the same size as the design, and the undisturbed soil material 3 is obtained. shaft sample.

To further optimize the plan, the step is to cut the undisturbed adobe material 1, and stop cutting every time 1/3/-1/2/ of the height of the undisturbed adobe material 1 is cut, and clean up the chips once. Stop cutting at intervals to clean up chips and prevent chips from affecting cutting accuracy.

The undisturbed soil material 1 is sampled and the internal fluidity of the undisturbed soil material 1 is checked; the soil sample of the target formation is taken through a special sampler to obtain the undisturbed soil material 1, and the shape of the undisturbed soil material 1 is larger than the final undisturbed soil triaxial sample, Leave enough margin.

Leveling support mechanism: measure by the evaluation device, adjust the leveling pillar 31, level the top surface of the support plate 42 in the installation groove 23, and ensure the verticality of the original adobe material 1 after installation.

Clamp the undisturbed adobe material 1; the supporting push rod 41 lifts the supporting plate 42 out of the installation groove 23, then puts the undisturbed adobe material 1 on the supporting plate 42, and then lowers the supporting plate 42 into the installation groove 23 , rotate the adjustment ring 44, the arc groove 45 rotates with the adjustment ring 44, the clamping rod 46 stretches out towards the undisturbed adobe material 1 under the push of the arc groove 45, and finally clamps the undisturbed adobe material 1 on the support plate 42 Central location.

Set up the cutting mechanism and adjust the cutter head assembly 6; install the cutting structure to a certain position above the undisturbed adobe 1, and then use a hexagonal wrench to turn the driving gear 63 to drive the cutting tool holder 64 meshing with the top of the cutting gear 62 to move toward the center or away from it. , and then adjust the position of the cutter 65, and then change the cutting diameter, so that the cutting diameter is slightly smaller than the diameter of the undisturbed adobe material 1; the cutting feed rate is determined according to the soil properties of the undisturbed adobe material.

Cut the undisturbed adobe material 1; turn on the cutting motor 52, drive the cutter 65 to rotate, and cut the outer edge of the undisturbed adobe material 1; at the same time, open the lifting power assembly 8, drive the screw rod 72 to rotate, and slowly lower the cutting mechanism until the cutter 65 cuts to Close to the position of the clamping device; stop the cutting motor 52, reverse the lifting power assembly 8 to raise the cutting structure above the top of the undisturbed adobe 1; reduce the cutting diameter again, and repeat the cutting steps until the diameter of the undisturbed adobe reaches the predetermined requirements.

Clean up the cuttings to obtain undisturbed soil triaxial samples. Clean up the cut broken soil, then saw off the undisturbed soil block 1 from the cutting end at the lower end, and saw off a section above the undisturbed adobe material, so that the remaining undisturbed adobe material 1 has the same size as the design, and obtain the undisturbed soil triaxial sample.

To further optimize the plan, the step is to cut the undisturbed adobe material 1, and stop cutting every time 1/3/-1/2/ of the height of the undisturbed adobe material 1 is cut, and clean up the chips once. Stop cutting at intervals to clean up chips and prevent chips from affecting cutting accuracy.

Instructions:

The soil sample of the target stratum is collected by a special sampler to obtain the undisturbed adobe material 1, and the shape of the undisturbed adobe material 1 is larger than the final undisturbed soil triaxial sample, and a sufficient margin is reserved.

Measure through the leveling device 32, adjust the leveling pillar 31, and level the top surface of the supporting plate 42 in the installation groove 23, so as to ensure the verticality of the undisturbed adobe material 1 after installation.

The support push rod 41 lifts the support plate 42 out of the installation groove 23, then puts the undisturbed adobe material 1 on the support plate 42, then lowers the support plate 42 into the installation groove 23, rotates the adjustment ring 44, and The shaped groove 45 rotates with the adjusting ring 44, and the clamping rod 46 stretches out to the undisturbed adobe material 1 under the promotion of the arc groove 45, and finally the undisturbed adobe material 1 is clamped at the center of the supporting plate 42.

Install the cutting structure to a certain position above the undisturbed adobe 1, then turn the driving gear 63 with a hexagonal wrench, and drive the cutting tool holder 64 meshing with the top of the cutting gear 62 to move toward the center or away from it, and then adjust the position of the cutter 65, and then Change the cutting diameter so that the cutting diameter is slightly smaller than the diameter of the undisturbed adobe material 1; the cutting feed rate is determined according to the soil properties of the undisturbed adobe material 1.

Turn on the cutting motor 52, drive the cutter 65 to rotate, and cut the outer edge of the undisturbed adobe 1; at the same time, turn on the lifting power assembly 8, drive the screw 72 to rotate, and slowly lower the cutting mechanism until the cutter 65 cuts to a position close to the clamping device Stop the cutting motor 52, reverse the lifting power assembly 8 and raise the cutting structure above the top of the undisturbed adobe 1; reduce the cutting diameter again, and repeat the cutting steps until the diameter of the undisturbed adobe 1 reaches the predetermined requirement. During the cutting process, the cutting is stopped at intervals to clean up the chips and prevent the chips from affecting the cutting accuracy.

Clean up the broken soil that has been cut, then saw off the undisturbed soil material 1 from the cutting end of the lower end, and saw off a section above the undisturbed adobe material 1, so that the remaining undisturbed adobe material 1 is the same size as the design, and the undisturbed soil material 3 is obtained. shaft sample.

The invention has simple structure, simple operation method, little influence on the undisturbed adobe material 1 during the cutting process, avoids the influence of uncertain factors and human factors during the cutting process, and improves the accuracy of test data.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation.

The above embodiments only describe the preferred mode of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the design spirit of the present invention, those skilled in the art may make various modifications and changes to the technical solution of the present invention. Improvements should all fall within the scope of protection determined by the claims of the present invention.

Claims (8)

1. An undisturbed soil triaxial sample spin-down preparation device, characterized in that: comprising A supporting mechanism, the supporting mechanism is used to install the undisturbed adobe material (1), the supporting mechanism includes a base (2), the base (2) is provided with a leveling assembly (3); the base ( 2) The top is provided with a clamping device (4); a cutting mechanism, the cutting mechanism is arranged above the supporting mechanism, and is used for cutting the undisturbed clay material (1) installed on the top of the clamping device (4); the cutting mechanism includes a cutting power assembly (5), the bottom end of the cutting power assembly (5) is detachably connected with a cutter head assembly (6), and the cutter head assembly (6) is used for cutting the undisturbed clay material (1); A supporting mechanism, the supporting mechanism is arranged between the supporting mechanism and the cutting mechanism, and is used to support the cutting mechanism and drive the cutting mechanism to move up and down; the supporting mechanism includes a sliding connection with the cutting mechanism The support rod group (7), the bottom end of the support rod group (7) is provided with a lifting power assembly (8), and the lifting power assembly (8) is fixedly installed on the top of the base (2); The cutting power assembly (5) includes a power frame (51) slidingly connected with the support rod group, a cutting motor (52) is fixedly installed on the top of the power frame (51), and the cutting motor (52) The output end extends into the inner cavity of the power frame (51) and is meshed with a cutting ring (53); the cutting ring (53) is rotatably connected with the power frame (51), and the bottom of the cutting ring (53) A cutter head assembly (6) is detachably connected to the end; The cutterhead assembly (6) includes a body ring (61) detachably connected to the cutting ring (53), and a cutting gear (62) is rotatably connected in the cavity of the body ring (61), so that The top surface of the cutting gear (62) is equidistantly meshed with several cutting tool holders (64), and the cutting tool holders (64) are slidingly connected with the side wall of the body ring (61); A cutting knife (65) is affixed to the end of the frame (64) toward the inner circle direction of the body ring (61). 2. the undisturbed soil triaxial sample spin-down preparation device according to claim 1, is characterized in that: described base (2) comprises base plate (21), and the top end of described base plate (21) is affixed with top plate ( 22), the center of the top plate (22) is provided with an installation groove (23), and the clamping device (4) is arranged in the installation groove (23). 3. The undisturbed soil triaxial sample spin-down preparation device according to claim 2, characterized in that: the leveling assembly (3) includes several leveling pillars (31) and leveling devices (32), several The leveling pillars (31) are vertically fixed on the top surface of the base (2) at equal intervals in the circumferential direction, and the top surface of the leveling pillars (31) is affixed to the bottom surface of the top plate (22); The leveling device (32) is arranged on the top of the clamping device (4). 4. The undisturbed soil triaxial sample spin-down preparation device according to claim 3, characterized in that: the clamping device (4) includes a supporting assembly and a fixing assembly arranged in the installation groove (23). The clamp assembly installed on the top surface of the top plate (22); the support assembly includes a support push rod (41) fixedly installed at the bottom end of the installation groove (23), and the support push rod (41) The output end of the output end is fixedly connected with a support plate (42), and the support plate (42) is adapted to the installation groove (23), and the leveling device (32) is arranged on the support plate (42) ) top; the clamping device (4) is concentrically arranged with the installation groove (23). 5. The undisturbed soil triaxial sample spin-down preparation device according to claim 4, characterized in that: the clamping assembly includes a fixed ring (43) fixed on the top surface of the top plate (22), the The fixed ring (43) is externally rotatably connected with an adjusting ring (44); the inner chamber of the adjusting ring (44) is provided with several arc-shaped grooves (45), and the inside of the arc-shaped groove (45) is slidably connected with clamping rings. One end of the rod (46), the other end of the clamping rod (46) protrudes from the side wall of the fixing ring (43) and is slidably connected with the fixing ring (43). 6. A method for preparing an undisturbed triaxial sample of undisturbed soil, according to any one of claims 1-5, the undisturbed triaxial sample of undisturbed sample is prepared by rotating down, characterized in that it comprises the following steps: The undisturbed clay material (1) is sampled and the internal fluidity of the undisturbed clay material (1) is checked; leveling support mechanism; Clamping the undisturbed adobe material (1); Set up the cutting mechanism and adjust the cutter head assembly (6); Cutting undisturbed adobe material (1); Clean up the cuttings to obtain undisturbed soil triaxial samples. 7. the undisturbed soil triaxial sample spin-down preparation method according to claim 6 is characterized in that: in the described step cutting undisturbed adobe material, cutting needs to divide several times to carry out, each cutting all starts from undisturbed adobe material ( 1) Cut from the top to the bottom, then raise the cutting mechanism, and adjust the cutterhead assembly (6) again for cutting. 8. The undisturbed soil triaxial sample spin-down preparation method according to claim 6, characterized in that: in the step of cutting the undisturbed adobe material, 1/3-1 of the height of the undisturbed adobe material (1) is cut each time. /2, stop cutting and clean up chips once.