CN204255718U - A kind of semi-automatic multifunction soil test pressure-like machine - Google Patents

Abstract

The utility model discloses a semi-automatic multifunctional geotechnical test sample pressing machine, which comprises a bracket system, a power and control system, a molding system and a sample pressing system. The bracket system includes a base, a side column and a top plate. On the seat, the upper end of the side column is fixed with a top plate, the power and control system is set on the base, the molding system is set on the power and control system, the sample pressing system is fixed on the top plate, and the corresponding molding and sample pressing system is installed Go to the movable sample pressing platform and the top plate, according to the corresponding test specifications, put a certain quality of soil samples into layers between the inner and outer mold cylinders (or inside the mold cylinder), and then operate the displacement controller to control the hydraulic pressure. The system raises the movable sample-pressing platform to a predetermined height, and at the same time, the sample-pressing hammer penetrates into the mold cylinder, and compacts each layer of soil particles according to the required dry density, that is, a reshaped hollow cylindrical sample (or solid sample) is obtained. Cylindrical samples).

Description

A semi-automatic multifunctional geotechnical test press machine

technical field

The utility model belongs to the technical field of indoor geotechnical test equipment, in particular to a semi-automatic multifunctional geotechnical test sample pressing machine.

Background technique

The preparation of remodeled samples is a major difficulty in indoor geotechnical tests, especially for dynamic hollow cylinder torsional shear instruments: 1) The compaction method relies on manual control in the control of story height and compaction work, Moreover, the compaction effect produces a non-negligible secondary disturbance to the soil, causing cracks to appear inside the sample, which greatly reduces the credibility of subsequent tests; 2) Due to the low permeability coefficient of cohesive soil, drainage and consolidation are extremely slow, When using the consolidation method to prepare samples, it needs to be consolidated under high negative pressure for more than 10 days, which makes the sample preparation equipment expensive and cumbersome, the sample preparation operation is complicated, and the prepared samples have large inhomogeneity; 3) The sample preparation requires a lot of human labor, the degree of automation is low, and the sample preparation efficiency is low; 4) There are many sample preparation tools for various indoor geotechnical tests, which to a certain extent causes waste of resources for repeated configuration.

Due to the many problems in the existing methods, most of the existing researches are limited to remodeling sandy soil or original clay, which seriously restricts the development of related research, and it is urgent to develop new equipment with a wide range of applications and semi-automatic sample preparation.

Utility model content

The purpose of the utility model is to provide a semi-automatic multifunctional geotechnical test sample pressing machine, which solves the problems in the prior art that the sample preparation equipment has single function, low degree of automation, poor sample preparation accuracy and inability to prepare hollow cylindrical samples.

The technical solution adopted by the utility model is, a semi-automatic multi-functional geotechnical test sample pressing machine, including a bracket system, a power and control system, a molding system and a sample pressing system, and the bracket system includes a base, a side column and a top plate, and the side column The lower end of the side column is fixed on the base, the upper end of the side column is fixed on the top plate, the power and control system is set on the base and the side column, the molding system is set on the power and control system, and the sample pressing system is fixed on the top plate.

The utility model is also characterized in that,

The power and control system includes fuel tank, motor, hydraulic pump, hydraulic cylinder, control mechanism and movable sample pressing platform. The movable sample pressing platform is fixed on the base through a bracket, the motor is connected to the hydraulic pump, and the fuel tank is connected to the hydraulic pump through pipelines. , the oil tank is fixed on the bracket; the hydraulic cylinder is installed in the center of the base, and its upper part is fixed with the movable sample pressing platform, and the movable sample pressing platform has a built-in displacement meter for measuring the axial displacement of the movable sample pressing platform; the control mechanism It is fixed on the side column, and the position of the movable sample preparation platform is detected in real time by controlling the motor.

The molding system includes a hollow outer molding cylinder mechanism, which is fixed on the sample base, and the outer molding cylinder mechanism includes an outer film forming cylinder, which is surrounded by three valves to form a cylinder; The outer layer of the film-forming cylinder is fixed by an outer hoop, and an outer support rod is arranged on the outside of the outer film-forming cylinder, and the outer support rod forms a circle; the lower ends of the outer film-forming cylinder and the outer support rod are fixed on the sample base, and the outer The upper ends of the film-forming tube and the outer support rod are provided with a top cap of the outer film-forming tube.

The molding system also includes a hollow inner film-forming cylinder mechanism. The inner film-forming cylinder mechanism is set in the outer mold-forming cylinder mechanism. The inner film-forming cylinder mechanism is fixed on the sample base. The inner film-forming cylinder mechanism includes the inner mold-forming cylinder , the inner mold cylinder is a hollow cylinder surrounded by two inner mold cylinder large valves and two inner mold cylinder small valves; a vertical inner support rod is arranged in the cavity of the inner mold cylinder, and the inner support Two sets of side arms are arranged on the rod; the lower ends of the inner mold cylinder and the inner support rod are fixed on the sample base, and the upper ends of the inner mold cylinder and the inner support rod are fixed on the top cap of the inner film-forming cylinder.

The sample pressing system is in the shape of a cylinder, including a sample pressing top cover, a sample pressing rod and a ring-shaped sample pressing hammer. There are three sample pressing rods connected under the sample pressing top cover, and a sample pressing hammer is arranged at the lower end of the sample pressing rod.

The top plate is fixed to the side columns by threads.

The sample pressing system is fixed on the top plate through the sample pressing top cover and bolts.

There are at least two outer hoops.

The valve of the outer membrane-forming cylinder is an annular valve; the large valve of the inner mold-forming cylinder is an annular valve with a central angle of 150°; the small valve of the inner mold-forming cylinder is an annular valve with a central angle of 30°.

The shape of the sample pressure hammer is a ring shape or a circle shape enlarged at the bottom.

The beneficial effect of the utility model is: when preparing the remodeling sample, at first select the corresponding molding system and install it on the movable sample pressing platform and the top plate, when preparing the remodeling hollow cylindrical sample (or solid cylindrical sample), according to According to the corresponding test specification, a certain quality of remolded soil particles is layered between the inner and outer mold cylinders (or in the mold cylinder), and then the displacement controller is operated to control the hydraulic system to raise the movable sample pressing platform to a predetermined level. At the same time, the pressure hammer penetrates into the mold cylinder, and compacts each layer of soil particles according to the required dry density. Afterwards, the molding system is dismantled sequentially from top to bottom, from inside to outside, and a reshaped hollow cylindrical sample (or solid cylindrical sample) is obtained.

The main body of the utility model is a series of cutting-edge geotechnical test instruments, such as a hollow cylinder torsional shear instrument, a stress path triaxial instrument, and the like. However, the preparation of remolded soil samples has always been a difficult point in indoor geotechnical tests, especially for remolded hollow cylindrical samples. The secondary disturbance of the sample preparation is serious, the uniformity is poor, and the sample preparation and sample removal are complicated, which makes the accuracy of sample preparation and the reliability of subsequent tests questioned.

The sample pressing machine has been rationally designed. According to the characteristics of various tests, the preparation of remolded samples with large particles and high strength has been specially considered, and the most reasonable plan has been designed: semi-automatic control design, hydraulic power design, replaceable mold design, Valve-shaped molding barrel design, inner molding barrel fixing design, and one-time sample molding design. Each design link rationally and effectively utilizes the dynamic system, control principle, mechanical criterion and material properties, simulates the process of the original soil formation as much as possible, and provides an effective guarantee for the preparation of various samples. In the actual operation process, the sample press has a high degree of automation, which is not only convenient to operate, saves manpower and time, avoids repeated configuration of multiple identical parts of different sample preparation machines, and effectively saves resources; Good results have been achieved on various remodeled specimens with high uniformity. Thus, it provides great help for hollow cylinder torsional shear test, stress path triaxial test, resonant column test, etc.

The utility model adopts a layered compaction sample preparation method, which uses external force to compact the soil sample layer by layer into a hollow cylindrical or solid cylindrical sample, simulating the process of natural soil deposition to the greatest extent .

Description of drawings

Fig. 1 is a schematic diagram of a sample pressing machine equipped with a hollow cylindrical sample forming and sample pressing system;

Fig. 2 is a schematic diagram of a hollow cylindrical sample base;

Fig. 3 is a schematic diagram of the valve structure and the outer hoop ring formed outside the mold;

Fig. 4 is a schematic diagram of the structure of the inner molded valve valve and the inner support rod;

Fig. 5 is a sample pressing system for a solid cylindrical sample;

Fig. 6 is a schematic diagram of a solid cylindrical sample molding system;

In the figure: 1. Base, 2. Side column, 3. Top plate, 4. Oil tank, 5. Motor, 6. Hydraulic pump, 7. Hydraulic cylinder, 8. Control mechanism, 9. Movable sample pressing platform, 10. Sample base, 11. Outer support rod, 12. Outer hoop, 13. Outer mold cylinder, 14. Inner mold cylinder, 15. Inner support rod, 16. Inner mold cylinder top cap, 17. Outer mold cylinder Tube top cap, 18. Hollow cylindrical sample, 19. Pressure sample top cover, 20. Pressure sample rod, 21. Ring pressure sample hammer, 22. Forming cylinder, 23. Solid sample, 24. Round pressure sample Hammer, 25. The large valve of the inner mold barrel, 26. The small valve of the inner mold barrel, 27. Valve, 28. The outer mold barrel fixing groove, 29. The inner mold barrel fixing groove, 30. The mold barrel fixing groove, 31. Outer support rod fixing hole, 32. Inner support rod fixing hole, 33 Base fixing hole, 34. Card slot, 35. Inner support rod side arm.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model provides a semi-automatic multifunctional geotechnical test sample pressing machine, as shown in Figure 1, comprising four parts: a support system, a power and control system, a molding system and a sample pressing system. The support system includes a base 1, a side column 2, and a top plate 3. The lower end of the side column is fixed on the base 1, and the top plate 3 is fixed on the upper end of the side column 2 through threads. The power and control system is set on the base 1 and the side column 2 , the molding system is set on the power and control system, and the sample pressing system is fixed on the top plate 3 . The top plate 3 is fixed to the side column 2 by threads.

The power and control system consists of a fuel tank 4, a motor 5, a hydraulic pump 6, a hydraulic cylinder 7, a control mechanism 8 and a movable sample pressing platform 9. The movable sample pressing platform 9 is fixed on the base 1 through a bracket, the motor 5 is connected to the hydraulic pump 6, the fuel tank 4 is connected to the hydraulic pump 6 through pipelines, and the fuel tank 4 is fixed on the bracket by bolts; the hydraulic cylinder 7 is installed on the base 1 In the center, its upper part is fixed to the movable sample pressing platform 9, and the movable sample pressing platform 9 has a built-in displacement meter for measuring the axial displacement of the movable sample pressing platform 9; the control mechanism 8 is fixed on the side column, and by controlling the motor 5 Real-time detection of the position of the movable sample preparation platform, and then the control mechanism 8, the built-in displacement meter and the power system of the movable sample pressing platform 9 form a servo feedback system.

When preparing different samples, you can choose the corresponding molding and sample pressing system. The molding system is fixed on the movable sample pressing platform 9, the sample pressing top cover 19 is fixed at the center of the top plate 3 by top fixing bolts, and the sample base 10 is fixed on the movable sample pressing platform 9 by bolts. As shown in Figure 2, the sample base 10 is provided with inner and outer mold cylinder fixing grooves 29, 28; the solid sample is the mold cylinder fixing groove 30 (i.e. the outer mold cylinder fixing groove 28), and the outer support rod is fixed Holes 31, inner support rod fixing holes 32, and base fixing holes 33.

When preparing a hollow cylindrical sample, as shown in Figure 1, Figure 3 and Figure 4, the molding system includes an inner film-forming cylinder mechanism and an outer film-forming cylinder mechanism, and the two work together to complete the preparation of the hollow cylindrical sample:

The outer molding cylinder mechanism is fixedly arranged on the sample base 10, and the outer molding cylinder mechanism includes an outer film-forming cylinder 13, which is surrounded by three annular valves 27 to form a cylinder; the sample base 10 is provided with a The annular outer molding cylinder fixing groove 28 of the outer molding cylinder, the outer layer of the film forming cylinder 13 is fastened by the outer hoop 12, and there are at least two outer hoops 12. The outer side of the outer film-forming cylinder 13 is provided with an outer support rod 11, and the four outer support rods 11 are evenly distributed and formed into a circle; the lower ends of the outer film-forming cylinder 13 and the outer support rod 11 are fixed on the sample base 10, and the outer forming The upper end of the film tube 13 and the outer support rod 11 is provided with an outer film-forming tube top cap 17;

The inner film-forming cylinder mechanism is set in the outer mold-forming cylinder mechanism, and the inner film-forming cylinder mechanism is fixedly arranged on the sample base 10. The inner film-forming cylinder mechanism includes an inner mold cylinder 14, and the inner mold cylinder 14 consists of two central angles. It is composed of a 150° ring-shaped inner molded cylinder large valve 25 and two annular inner molded cylinder small valves 26 with a central angle of 30°, wherein the four contact surfaces of the molded cylinder large and small valves are parallel to each other, so as to facilitate assembly ;In actual operation, first assemble the large valve 25, and then put the small valve 26. Since the contact surfaces are parallel, the small valve 26 can be directly buckled in, and then supported by the inner support rod 15; when disassembling, press the two small valves 26. Press the two small valves 26 out. If it is made into the same three valves as the outer molding cylinder, it is very difficult to assemble because it is in the sample. A vertical inner support rod 15 is arranged in the cavity of the inner mold cylinder 14, and two groups of side arms 35 are arranged on the inner support rod 15; the lower ends of the inner mold cylinder 14 and the inner support rod 15 are fixed on the sample base 10 , The upper ends of the inner molding cylinder 14 and the inner support rod 15 are fixed on the top cap 16 of the inner film forming cylinder. The center of the sample base 10 is provided with a sample inner support rod fixing hole 32 and annular inner and outer mold cylinder fixing grooves 29 and 28 . Inner molding barrel top cap 16 is fixed on the inner support rod upper end by bolts.

As shown in FIG. 1 , the sample pressing system includes a sample pressing top cover 19 , a sample pressing rod 20 and an annular sample pressing hammer 21 . The sample pressing system is fixed on the top plate 3 through the sample pressing top cover 19 and bolts. Three ring-shaped pressure sample rods 20 with a center angle of 30° are spaced apart by 90° in pairs, and are circularly fixed under the sample pressure top cover 19 . A sample-pressing hammer 21 is provided at the lower end of the sample-pressing rod 20; the shape of the sample-pressing hammer 21 is an annular or circular shape with an enlarged bottom.

When preparing a solid cylindrical sample, the molding system is shown in Figure 6, which only includes the external molding system. Except that the base needs to be replaced with a solid sample base, the rest of the structure is the same as that of the hollow sample; the sample pressing system is shown in Figure 5. Shown is the same as when preparing the hollow cylindrical sample, only the annular pressure hammer 21 at the lower end of the pressure rod 20 is replaced with a circular pressure hammer 24.

The mold forming and sample pressing system of the utility model is divided into 4 groups according to the prepared samples, which are respectively combined with hollow cylindrical samples (large sample size: inner diameter × outer diameter × height/160 × 200 × 400mm; small sample size: inner diameter ×outer diameter×height/60×100×200mm) and solid samples (diameter×height/39.1×80mm; diameter×height/100×200mm), in addition, it can also be customized according to the sample. The design principle of the hollow cylindrical small sample press is introduced here (other sample preparation is similar to it).

1) Pressure sample design

When preparing a reshaped triaxial sample, the sample is usually divided into several layers according to the relevant test specifications, and then the layered compaction method is adopted, and the sample is compacted by a hammer with a large self-weight during compaction. However, due to the high impact force of the hammer, the compaction process inevitably produces secondary disturbances to the soil, resulting in micro-cracks inside the remolded sample, which reduces the reliability of subsequent tests. The utility model adopts a layered sample pressing method, which eliminates the secondary disturbance of the compaction to the soil, reduces the error of artificial compaction, simulates the deposition and formation process of the natural soil to the greatest extent, and improves the quality of the remodeling sample.

2) Power system design

The utility model adopts a hydraulic power system, which greatly reduces the intensity of human labor. The traditional compaction method is not only time-consuming and labor-intensive when preparing samples with high dry density and high strength, but also the sample quality is poor. Due to the characteristics of high pressure, good stability and easy control of the hydraulic system, the The sample press has unique advantages in preparing such samples, which improves the applicability of sample preparation tools.

3) Power and control system design

When preparing a reshaped sample, it is usually necessary to manually test the height of the sample to control the uniformity of the sample. This method cannot reliably guarantee the quality of the sample. The utility model has a built-in displacement meter and a control mechanism 8 to detect the position of the movable sample preparation platform in real time, and forms a servo feedback system with the control mechanism, the displacement meter and the power system, and controls the movable sample by inputting the target displacement through the control mechanism The position of the platform strictly controls the height of each layer of samples, which not only realizes the semi-automation of sample preparation, but also improves the uniformity of samples to the greatest possible extent.

4) Design of sample rod and sample hammer

The utility model adopts the pressure sample rod instead of the sample cylinder to transmit the vertical pressure, which reduces the friction between the sample pressure system and the inner and outer mold cylinders, and can observe the inner and outer molds in real time through the gap between the rods. The position of the cylinder, whether the pressure hammer and the latex film are scratched, whether the soil sample particles are extruded, etc. The pressure sample rod 20 is three fan-shaped rods, which are bent from a stainless steel plate with a thickness of 5mm and a width of 20mm, and its length is the same as that of the inner and outer mold barrels. The lower end of the pressure rod 20 is connected with an annular pressure hammer 21, and the inside and outside sides of the bottom of the pressure hammer are designed to be enlarged, so that the upper surface of the sample is evenly stressed when the sample is pressed. In addition, in order to avoid friction between the pressure hammer and the inner and outer latex films, the latex film is pulled and deformed by the pressure hammer to cause local defects in the sample. After the pressure hammer penetrates into the cavity between the inner and outer mold cylinders, it needs to A gap of 1 mm is reserved between the inner and outer latex films for easy manipulation. The inner and outer latex membranes are necessary auxiliary consumables for the preparation of hollow cylindrical samples, and have been widely used in the field of geotechnical engineering.

5) Molded valve design

Both the inner and outer molding cylinders adopt the valve design, considering the integrity of the molding cylinder and the convenience of disassembly, the outer molding cylinder 13 is composed of three identical valves; the inner molding cylinder 14 is composed of two large valves 25 and Two small valves 26 are formed, and there is a draw-in groove 34 for fixing the side arm of the inner support rod on the inner side thereof. The inner support rod 15, the outer hoop 12 and the inner and outer mold cylinder fixing grooves 29, 28 of the sample base jointly support and fix the inner and outer mold systems, so as to prevent the lateral expansion of the sample from being too large during the sample pressing and make the mold System deformation.

6) The design of the top cap of the molded cylinder

When the sample is prepared, the soil particles will fall into the gap between the lower end of the inner and outer mold cylinders and the sample base. With the increase of the pressure of the sample, the soil particles will be continuously squeezed into the gap, resulting in the inner and outer mold. The barrel is tilted. Therefore, the tops of the inner and outer mold cylinders are fixed by the inner and outer support rods, and the top caps of the inner and outer mold cylinders are respectively connected continuously and tightly with the inner and outer mold cylinders. The top cap hoop of the inner molding cylinder is at the top of the inner molding cylinder, and its outside diameter is the same as that of the inner molding cylinder; the top cap hoop of the outer molding cylinder is on the top of the outer molding cylinder, and its inner diameter is the same as the inner diameter of the outer molding cylinder . Then, under the action of vertical pressure, the inner and outer mold cylinders are tightly connected with the sample base to prevent the soil particles from being extruded. After deducting the part embedded in the base of the sample and the top cap embedded in the inner and outer mold cylinders, the height of the contact section between the mold cylinder and the sample should be equal to the height of the sample. Since the last few layers of soil samples are loose before compaction, the top caps of the inner and outer forming cylinders also play the role of extending the forming cylinder, and the height of the top caps of the inner and outer forming cylinders is just enough to accommodate the last layer of soil samples. The layer soil is used as the standard. According to experience, the height of the top hat of the sample with a height of 80, 100, and 200 mm is 25 mm, and the height of the top hat of the sample with a height of 400 mm is 50 mm.

7) One-time molding design of the sample

When preparing a hollow cylindrical sample, usually a solid cylindrical sample whose height and outer diameter meet the requirements is prepared first, and then the solid sample is cored to obtain a hollow cylindrical sample. However, the coring operation disturbs the sample greatly, and for the soil with high strength and large particles, it becomes extremely difficult to coring the sample. When the utility model prepares the hollow cylindrical sample, the compaction method is adopted to make the hollow cylindrical sample at one time, which avoids the secondary disturbance of the sample when taking the coring, and improves the applicability of the sample pressing machine.

8) Applicability design

In order to prepare samples with different heights, the top plate of the sample press can be raised and lowered through the thread on the side rod, so that the lifting range of the movable platform can meet the requirements for preparing different samples. The molding and sample pressing system can be disassembled, and the corresponding device can be replaced according to the prepared sample. In addition, the molding and sample pressing system can be customized according to the actual situation. One-time sample preparation, hydraulic power system, and servo feedback system all improve the applicability of sample preparation to a certain extent, so that the sample press can meet the sample preparation requirements of various geotechnical tests.

The operating steps of the utility model are as follows:

1) System assembly:

According to the prepared sample, select the corresponding molding and sample pressing system (here, the hollow cylindrical sample is taken as an example, and the preparation of other samples is similar to it). The sample base 10 is fixed on the movable sample pressing platform 9, and the annular filter paper is placed between the mold cylinders (13, 14) inside and outside the base. Put it on the outer molding cylinder 13 and tighten it tightly, put the latex film on the outer side of the inner molding cylinder 14 and the inner side of the outer molding cylinder 13, and roll up the two ends and press them into the sample base and the inner molding cylinder top cap 16 and the outer molding cylinder. Form the cylinder top cap 17. Fix the inner support rod 15 in the fixing hole 32 of the inner support rod in the center of the sample base, insert the side arm of the inner support rod into the slot 34 on the inner side of the small valve of the inner mold cylinder, and fix the inner and outer mold cylinder top caps of the outer hoop 12 On the inner support rod 15 and the outer support rod 11. Assemble the sample pressing top cover 19 , the sample pressing rod 20 , and the sample pressing hammer 21 on the top plate 3 .

2) System adjustment:

By operating the control mechanism 8, the movable sample pressing platform is raised to the highest point, and the height of the top plate 3 is adjusted by rotating the bolts on both sides of the top plate. Bits are set to zero.

3) Calculation and sample weighing: Weigh the soil samples of corresponding mass according to the calculated results, and divide them into several parts (here five parts are taken as an example), the total height of the samples is 200mm, and the height of each layer is 40mm.

4) Pressure sample:

Lower the movable sample-pressing platform 9 to the lowest point, load a layer of soil sample, use a plastic stick to flatten the soil sample slightly and compact it, and coat the inner and outer edges of the sample-pressing hammer 21 with talcum powder. Control the hydraulic system through the control mechanism, so that the movable platform rises to the place where the sample base is 40mm from the bottom surface of the pressure hammer. During the compaction process, pay attention to whether the inner and outer latex films are pulled and whether the soil sample is squeezed from both sides of the pressure hammer 21. out. Lower the movable platform to the lowest point, and roughen the surface of this layer of soil to increase the connection between layers and the integrity of the sample to prevent internal delamination, and then compact the second to fifth layers in the same way . After the sample preparation is completed, remove the components of the molding system in sequence from top to bottom and from inside to outside.

Claims (10)

1. a semi-automatic multifunction soil test pressure-like machine, it is characterized in that, comprise mounting system, power and control system, become modular system and pressure-like system, described mounting system comprises pedestal (1), lateral column (2) and top board (3), the lower end of described lateral column (2) is fixed on pedestal (1), the upper end of described lateral column (2) is fixed with top board (3), described power and set-up of control system are on pedestal (1) and lateral column (2), described one-tenth modular system is arranged in power and control system, described pressure-like system is fixed on top board (3).

2. semi-automatic multifunction soil test pressure-like machine according to claim 1, it is characterized in that, described power and control system comprise fuel tank (4), motor (5), hydraulic pump (6), hydraulic cylinder (7), control gear (8) and removable pressure-like platform (9), removable pressure-like platform (9) is fixed on pedestal (1) by support, motor (5) is connected with hydraulic pump (6), fuel tank (4) is connected by pipeline with hydraulic pump (6), and fuel tank (4) is by being fixed on support; Hydraulic cylinder (7) is arranged on pedestal (1) central authorities, its top and removable pressure-like platform (9) are fixed, and removable pressure-like platform (9) is built-in with the displacement meter of the axial displacement for measuring removable pressure-like platform (9); Control gear (8) is fixed on lateral column, detects the position of removable sample preparation platform (9) by controlling motor (5) in real time.

3. semi-automatic multifunction soil test pressure-like machine according to claim 1, it is characterized in that, described one-tenth modular system comprises the Wai Chengmotong mechanism of hollow, described Wai Chengmotong mechanism is fixedly installed in specimen mount (10), described Wai Chengmotong mechanism comprises outer film forming cylinder (13), and described outer film forming cylinder (13) surrounds cylinder by three valves (27); The skin of described outer film forming cylinder (13) is fixed by outer garter spring (12), and the arranged outside of described outer film forming cylinder (13) has outer support bar (11), and described outer support bar (11) surrounds circle; The lower end of described outer film forming cylinder (13) and outer support bar (11) is fixed in specimen mount (10), and the upper end of described outer film forming cylinder (13) and outer support bar (11) is provided with outer film forming cylinder top cap (17).

4. semi-automatic multifunction soil test pressure-like machine according to claim 3, it is characterized in that, described one-tenth modular system also comprises the interior film forming cylinder mechanism of hollow, described interior film forming cylinder organization establishes is in Wai Chengmotong mechanism, described interior film forming cylinder mechanism is fixedly installed in specimen mount (10), described interior film forming cylinder mechanism comprises interior one-tenth mould cylinder (14), and described interior one-tenth mould cylinder (14) is the cylinder becoming the large valve of mould cylinder (25) and the hollow becoming the little valve of mould cylinder (26) to surround in two in 2; Be provided with vertical inner bracing piece (15) in the cavity of described interior one-tenth mould cylinder (14), described inner bracing piece (15) be provided with two groups of side arms (35); The lower end of described interior one-tenth mould cylinder (14) and inner bracing piece (15) is fixed in specimen mount (10), and the upper end of described interior one-tenth mould cylinder (14) and inner bracing piece (15) is fixed on interior film forming cylinder top cap (16).

5. semi-automatic multifunction soil test pressure-like machine according to claim 1, it is characterized in that, described pressure-like system cylindrically, comprise pressure-like top cover (19), pressure-like bar (20) and ring-type pressure-like hammer (21), pressure-like top cover (19) below is connected with three pressure-like bars (20), and pressure-like bar (20) lower end is provided with pressure-like hammer (21).

6. the semi-automatic multifunction soil test pressure-like machine according to any one of claim 1-5 claim, is characterized in that, described top board (3) is fixed by screw thread and lateral column (2).

7. the semi-automatic multifunction soil test pressure-like machine according to any one of claim 1-5 claim, it is characterized in that, described pressure-like system is fixed on top board (3) by pressure-like top cover (19) and bolt.

8. semi-automatic multifunction soil test pressure-like machine according to claim 3, is characterized in that, described outer garter spring (12) is at least provided with 2.

9. semi-automatic multifunction soil test pressure-like machine according to claim 4, is characterized in that, the valve (27) of described outer film forming cylinder (13) is annular valve; Centered by the large valve of described interior one-tenth mould cylinder (25), angle is the annular valve of 150 °; Centered by the little valve of described interior one-tenth mould cylinder (26), angle is the annular valve of 30 °.

10. semi-automatic multifunction soil test pressure-like machine according to claim 4, is characterized in that, the shape of described pressure-like hammer (21) is the circular or toroidal that bottom is amplified.