CN212693298U - Rock-soil performance test device - Google Patents

Abstract

The utility model discloses a rock-soil performance test device, which belongs to the rock-soil test field and is used for rock-soil detection, wherein a bottom plate of the rock-soil performance test device is respectively provided with a tension pressure sensor and a displacement sensor in two parallel side directions of a lower box body; the tension and pressure sensor is arranged at the end face of a shaft body of the displacement device and is in contact with the outer side face of the upper box body, and the displacement device is driven by the displacement power device; the displacement sensor is in contact with the outer side face of the upper box body and is fixed on the bottom plate through a sensor fixing seat; the two sides of the bottom plate are also provided with sliding grooves formed by notches, and the bottom plate and the U-shaped bracket slide relatively through the sliding grooves; the top surface of the U-shaped support is provided with a bottom plate gear box connected with the U-shaped support, a bottom plate connecting shaft driven by a bottom plate rocker is arranged in the bottom plate gear box, and the bottom end of the bottom plate connecting shaft is connected with a bottom plate. The field sampling and field measurement of the soil sample can be realized, and the outdoor adaptability of the direct shear apparatus is improved.

Description

Rock-soil performance test device

Technical Field

The utility model belongs to the experimental field of ground, specifically speaking especially relates to a ground performance test device.

Background

The relation between the shearing force and the displacement can be effectively obtained by measuring the shearing strength of the soil, and then the numerical values of the internal friction angle and the cohesion are obtained. In the actual use process, the shear strength of the soil is realized by a direct shear apparatus. The direct shear apparatus judges the numerical value of the shear strength through the experimental numerical value measured by the tension pressure sensor and the displacement sensor, but the soil sample measured by the direct shear apparatus is mostly required to be transferred from the outdoor to the indoor, the sample placed in the box body is possibly damaged in the process of transferring the soil sample, the structure of the soil sample is influenced, the subsequent measured shear strength is influenced, and then the accuracy of the internal friction angle and the cohesion numerical value is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ground performance test device, its field sampling and the field measurement that can realize the soil sample improve the direct shear appearance at outdoor adaptability.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the rock soil performance test device comprises an upper box body and a lower box body, wherein the upper box body is positioned above the lower box body, the bottom surface of the upper box body is attached to the top surface of the lower box body, the lower box body is placed in a rectangular through hole of a bottom plate, a limiting fixed plate is arranged on the bottom plate at the periphery of the rectangular through hole, and the limiting fixed plate is contacted with the outer side surface of the lower box body through a threaded hole and a limiting bolt; the bottom plate is respectively provided with a tension pressure sensor and a displacement sensor in the direction of two parallel side surfaces of the lower box body; the tension and pressure sensor is arranged at the end face of a shaft body of the displacement device and is in contact with the outer side face of the upper box body, and the displacement device is driven by the displacement power device; the displacement sensor is in contact with the outer side face of the upper box body and is fixed on the bottom plate through a sensor fixing seat; the two sides of the bottom plate are also provided with sliding grooves formed by notches, and the bottom plate and the U-shaped bracket slide relatively through the sliding grooves; the top surface of the U-shaped support is provided with a bottom plate gear box connected with the U-shaped support, a bottom plate connecting shaft driven by a bottom plate rocker is arranged in the bottom plate gear box, and the bottom end of the bottom plate connecting shaft is connected with a bottom plate.

Furthermore, the upper box body of the utility model is provided with a lower caulking groove on two parallel side surfaces contacting with the bottom surface of the upper box body, an upper caulking groove is arranged at the position where the lower caulking groove contacts with the top surface of the lower box body, the upper caulking groove is aligned with the lower caulking groove and then is connected with a box body panel, and the box body panel is placed in the space formed by the upper caulking groove and the lower caulking groove; the box body panel is L-shaped, and the part of the box body panel extending out of the lower caulking groove is contacted with the bottom surface of the box body sleeve.

Furthermore, the utility model discloses in the bottom surface of lower box process have a cutting part, the longitudinal section of cutting part is the triangle-shaped structure of invering.

Further, say, the utility model discloses in telescopic both sides of box be provided with the sleeve handle, the box sleeve passes through the sleeve handle and realizes pushing down the box panel to and the box sleeve takes out from last box, lower box after the sample is accomplished.

Furthermore, the bottom plate connecting shafts in the utility model are respectively arranged at two sides of the bottom plate, and the bottom plate connecting shafts are connected with the bottom plate gear box after passing through the bottom plate shaft sleeves below the bottom plate gear box; the bottom plate gear box drives the bottom plate connecting shaft to move up and down through the bottom plate rocker.

Further, in the utility model, the bottom plate gear box be located the both sides of U type support, the bottom plate gear box of U type support both sides passes through the synchronizing bar and connects.

Furthermore, the U-shaped bracket in the utility model is also provided with a pressing plate gear box at the middle part, a pressing plate shaft body moving up and down is arranged in the pressing plate gear box, and the bottom end of the pressing plate shaft body is connected with a pressing plate; the bottom surface of the pressing plate is in contact with the top surface of the upper box body.

Further, say, the utility model discloses in U type support still be provided with the clamp plate axle sleeve coaxial with the clamp plate axis body in the bottom of clamp plate gear box, the clamp plate axis body passes and is connected with the clamp plate gear box behind the clamp plate axle sleeve.

Further, in the utility model, the top of U type support be provided with the spirit level.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a to draw pressure sensor and displacement sensor etc. to integrate on the bottom plate, effectively solved the bottom plate and last box, down the cooperation problem between the box, realize then the measurement of effectual cooperation and data between the two.

2. The utility model discloses well upper box and lower box realize the fixed of sampling process through the box sleeve, and the box sleeve can realize withdrawing from after the sample is accomplished with the clamp plate cooperation, and the withdrawal from process does not influence the stability of sample soil sample.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the present invention.

Fig. 3 is a schematic view of the combination of the middle box sleeve, the upper box and the lower box of the present invention.

Fig. 4 is a schematic view of the internal structure of the middle box sleeve, the upper box and the lower box of the present invention.

Fig. 5 is a schematic structural view of the upper and lower case of the present invention.

Fig. 6 is a schematic structural view of the middle and lower box bodies of the present invention.

Fig. 7 is a schematic structural diagram of the middle bottom plate of the present invention.

Fig. 8 is a schematic structural diagram of the middle weight block of the present invention.

In the figure: 1. a U-shaped bracket; 2. a bedplate gear box; 3. a bottom plate rocker; 4. a platen gear box; 5. a pressure plate rocker; 6. a synchronization lever; 7. a bottom plate shaft sleeve; 8. a bottom plate connecting shaft; 9. pressing a plate; 10. an upper box body; 11. a pull pressure sensor; 12. a displacement device; 13. a displacement power device; 14. a base plate; 15. a limit bolt; 16. a limiting fixing plate; 17. a lower box body; 18. a displacement sensor; 19. a sensor holder; 20. a platen shaft body; 21. a pressure plate shaft sleeve; 22. a level gauge; 23. a box body sleeve; 24. a sleeve handle; 25. a box panel; 26. a chute; 27. a rectangular through hole; 28. a lower caulking groove; 29. an upper caulking groove; 30. a blade part; 31. a frame body; 32. a placement section; 33. a counterweight portion.

Detailed Description

The technical solution of the present invention will be further described and illustrated with reference to the following examples. It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope or technical solutions of the present invention, and are only for facilitating the better understanding of the technical solutions of the present invention by those skilled in the art.

In the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

A rock performance test device comprises an upper box body 10 and a lower box body 17, wherein the upper box body 10 is positioned above the lower box body 17, the bottom surface of the upper box body 10 is attached to the top surface of the lower box body 17, the lower box body 17 is placed in a rectangular through hole 27 of a bottom plate 14, a limiting fixing plate 16 is arranged on the bottom plate 14 at the periphery of the rectangular through hole 27, and the limiting fixing plate 16 is contacted with the outer side surface of the lower box body 17 through a threaded hole and a limiting bolt 15; the bottom plate 14 is respectively provided with a tension pressure sensor 11 and a displacement sensor 18 in the direction of two parallel side surfaces of the lower box body 17; the tension and pressure sensor 11 is arranged at the end surface of the shaft body of the displacement device 12 and is in contact with the outer side surface of the upper box body 10, and the displacement device 12 is driven by a displacement power device 13; the displacement sensor 18 is in contact with the outer side surface of the upper box body 10, and the displacement sensor 18 is fixed on the bottom plate 14 through a sensor fixing seat 19; the two sides of the bottom plate 14 are also provided with sliding grooves 26 formed by notches, and the bottom plate 14 slides relative to the U-shaped bracket 1 through the sliding grooves 26; the top surface of the U-shaped support 1 is provided with a bottom plate gear box 2 connected with the U-shaped support, a bottom plate connecting shaft 8 driven by a bottom plate rocker 3 is arranged in the bottom plate gear box 2, and the bottom end of the bottom plate connecting shaft 8 is connected with a bottom plate 14.

Example 2

A geotechnical performance experimental device, wherein the said upper box 10 has lower caulking groove 28 on two parallel side surfaces contacting with its bottom surface, the position where the lower caulking groove 28 contacts with top surface of the lower box 17 has upper caulking groove 29, connect with the panel 25 of the box after the upper caulking groove 29 aligns with lower caulking groove 28, the panel 25 of the box is placed in the space formed by upper caulking groove 29 and lower caulking groove 28; the box panel 25 is L-shaped, and the part of the panel extending out of the lower caulking groove 28 is in contact with the bottom surface of the box sleeve 23; the bottom surface of the lower box body 17 is provided with an edge part 30, and the longitudinal section of the edge part 30 is of an inverted triangular structure; sleeve handles 24 are arranged on two sides of the box sleeve 23, the box sleeve 23 presses a box panel 25 through the sleeve handles 24, and the box sleeve 23 is taken out from the upper box body 10 and the lower box body 17 after sampling is completed. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

Example 3

A rock-soil performance test device is characterized in that bottom plate connecting shafts 8 are respectively arranged on two sides of a bottom plate 14, and the bottom plate connecting shafts 8 penetrate through a bottom plate shaft sleeve 7 below a bottom plate gear box 2 and then are connected with the bottom plate gear box 2; the bottom plate gear box 2 drives a bottom plate connecting shaft 8 to move up and down through a bottom plate rocker 3; the bottom plate gear boxes 2 are positioned on two sides of the U-shaped support 1, and the bottom plate gear boxes 2 on two sides of the U-shaped support 1 are connected through a synchronous rod 6; the U-shaped support 1 is further provided with a pressing plate gear box 4 at the middle position, a pressing plate shaft body 20 moving up and down is arranged in the pressing plate gear box 4, and the bottom end of the pressing plate shaft body 20 is connected with a pressing plate 9; the bottom surface of the pressing plate 9 is contacted with the top surface of the upper box body 10; the U-shaped support 1 is also provided with a pressure plate shaft sleeve 21 which is coaxial with the pressure plate shaft body 20 at the bottom of the pressure plate gear box 4, and the pressure plate shaft body 20 is connected with the pressure plate gear box 4 after penetrating through the pressure plate shaft sleeve 21; the top of the U-shaped bracket 1 is provided with a level 22. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

On the basis of the above embodiments, the present invention proceeds with detailed descriptions of technical features and functions thereof, so as to help those skilled in the art fully understand the technical solution of the present invention and reproduce it.

As shown in fig. 1 to 7, the rock-soil performance testing apparatus of the present invention requires aligning the upper casing 10 and the lower casing 17 when in use, and placing the casing panel 25 in the space formed by the upper caulking groove 29 and the lower caulking groove 28 after the alignment of the two, wherein the casing panel 25 is an L-shaped plate. The box panel 25 comprises a vertical plate and a transverse plate, the outer surface of the vertical plate can be flush with the outer side surfaces of the upper box body 10 and the lower box body 17, and the transverse plate of the box panel 25 can be lapped with the bottom surface of the box body sleeve 23. The box sleeve 23 is fitted over the entire upper box 10 and a part of the lower box 17, and the inner side surface thereof is fitted to the outer side surfaces of the upper box 10, the lower box 17, and the box panel 25, thereby integrating the box sleeve 23, the upper box 10, the lower box 17, and the box panel 25. In the process of sampling soil, an operator presses the sleeve handles 24 on two sides of the box sleeve 23 by hands or other auxiliary tools, so that the box sleeve is inserted into the soil through the blade part 30 at the bottom of the lower box 17, and the box sleeve stops inserting into the soil until the whole lower box 17 and the part of the upper box 10 are submerged into the soil.

At this time, the U-shaped bracket 1 is placed above the device described in the above paragraph, and the gear set in the pressure plate gear box 4 can drive the pressure plate shaft 20 to move downward by rocking the pressure plate rocker 5. It should be noted that the upper portion of the platen shaft 20 is formed with gear teeth or other structures, which can move up and down along the platen shaft sleeve 21 under the action of the gear set in the platen gear 4. The platen bushing 21 functions to prevent dust by a sealing member, and the platen gear case 4 is also provided with a telescopic dust cover above it to prevent dust from falling into a portion of the platen shaft body 20 extending out of the platen gear case 4, based on the same function.

In the present invention, the end of the pressing plate shaft body 20 described in the above paragraphs is provided with the pressing plate 9, and the pressing plate 9 is driven by the pressing plate shaft body 20 to move until the bottom surface is attached to the top surface of the upper box body 10 and then stops; at this time, the operator detaches the casing sleeve 23 from the assembly of the upper casing 10 and the lower casing 17 by the glove grip 24. Since the pressing plate 9 acts on the upper case 10 and the upper and lower cases 10 and 17 are still connected to the case panel 25 by the respective caulking grooves, the detachment of the case sleeve 23 does not affect the stability of the connected upper and lower cases 10 and 17. The disengaged casing sleeve is removed through the platen shaft 20 through the side opening 31 therein.

After the box sleeve 23 is separated, an operator needs to remove the soil outside the upper box 10 and above the lower box 17, and clean the soil adhered outside the upper box 10 and the lower box 17. After the cleaning is completed, the lower box 17 can still be stably located in the soil, and the soil outside the upper box 10 is cleaned so that the outer side surface is in contact with the tension and pressure sensor 11 and the displacement sensor 18.

After the cleaning of the above-mentioned section is completed, through hand bottom plate rocker 3, realize through bottom plate gear box 2 that drive bottom plate connecting axle 8 along bottom plate axle sleeve 7 downstream, stop after rectangle through-hole 27 on the bottom plate 14 passes lower box 17. Since the sliding grooves 26 formed by the notches are formed on both sides of the bottom plate 14, the state of the bottom plate 14 is always kept in balance with the horizontal plane in the process of moving downwards along the U-shaped bracket 1. The operator only needs to level according to the level 22 on the U-shaped bracket 1 when setting the bracket.

The utility model discloses in, rectangle through-hole 27 the medial surface can with the lateral surface contact of lower box 17, stop after bottom plate 14 is fixed through the spacing fixed plate 16 of ability, spacing bolt 15 and lower box. After the bottom plate 14 is fixed to the lower box 17 through the limiting fixing plate 16 and the limiting bolt 15, the displacement power device 13 drives the displacement device 12 to make the tension and pressure sensor 11 contact with the outer side surface of the upper box 10, and the displacement sensor 18 is adjusted to contact with the side surface of the upper box 10 in the moving direction. When the displacement device 12 drives the upper box 10 to move relative to the lower box 17, it can generate shearing force to the internal soil sample on the joint surface of the two boxes, and then realize measurement by reading the value of the sensor.

When the sensor is adjusted in place, the pressing plate gear box 4 drives the pressing plate shaft body 20 to move upwards through the pressing plate rocker 5, and the pressing plate 9 is separated from the upper box body 10 due to the upward movement of the pressing plate shaft body 20. After the pressing plate 9 is reset, the box panel 25 in the caulking groove at the joint of the upper box 10 and the lower box 17 is taken out.

The displacement power device 13 drives the displacement device 12 to act, the tension and pressure sensor 11 at the end of the extension rod of the displacement device 12 is in contact with the upper box 10 and pushes the upper box 10 under the pushing action of the extension rod, the pushing speed is determined according to the test requirement, for example, the pushing speed can be 3mm/min, and the pushing distance can be 6 mm.

In the present invention, a counterweight block can be placed at the top opening of the upper box 10, and the structure of the counterweight block is shown in fig. 8, wherein the counterweight part 33 can be inserted into the top opening of the upper box 10 and contact with the top surface of the internal soil sample; the frame body 31 is arranged above the counterweight part 33, the placing part 32 in a groove form is formed in the frame body 31, the cross section of the placing part 32 is the same as that of the counterweight part 33, and different counterweight blocks can be spliced with the counterweight part 33 through the placing part 32. Can realize applying the effort of vertical direction to the soil sample in last box 10, the lower box 17 through the balancing weight, satisfy experimental diversified demand then.

The utility model discloses in, displacement sensor 18 adopt be magnetostrictive displacement sensor, the utility model discloses in displacement device 12 be the electronic jar of parallel type respectively with displacement power device 13, displacement device 12 is the cylinder body part, displacement power device 13 is the motor, displacement device 12 and displacement power device 13 parallel mount are connected through hold-in range and synchronous pulley with the drive lead screw in the electronic jar, except having the characteristics of the electronic jar of orthoscopic to because total length, it is more suitable to be in the less occasion of mounted position. Simultaneously, the hold-in range that parallel mode electronic jar chose for use has intensity height, the clearance is little, characteristics such as longe-lived for whole electronic jar has higher controllability and control accuracy.

Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims (9)

1. The utility model provides a ground performance test device, includes box (10) and lower box (17), its characterized in that: the upper box body (10) is positioned above the lower box body (17), the bottom surface of the upper box body (10) is attached to the top surface of the lower box body (17), the lower box body (17) is placed in a rectangular through hole (27) of the bottom plate (14), a limiting fixing plate (16) is arranged on the bottom plate (14) at the periphery of the rectangular through hole (27), and the limiting fixing plate (16) is in contact with the outer side surface of the lower box body (17) through a threaded hole and a limiting bolt (15); the bottom plate (14) is respectively provided with a tension and pressure sensor (11) and a displacement sensor (18) in the direction of two parallel side surfaces of the lower box body (17); the tension and pressure sensor (11) is arranged at the end face of the shaft body of the displacement device (12) and is in contact with the outer side face of the upper box body (10), and the displacement device (12) is driven by a displacement power device (13); the displacement sensor (18) is in contact with the outer side face of the upper box body (10), and the displacement sensor (18) is fixed on the bottom plate (14) through a sensor fixing seat (19); sliding grooves (26) formed by notches are further processed on two sides of the bottom plate (14), and the bottom plate (14) and the U-shaped bracket (1) slide relatively through the sliding grooves (26); the top surface of the U-shaped support (1) is provided with a bottom plate gear box (2) connected with the U-shaped support, a bottom plate connecting shaft (8) driven by a bottom plate rocker (3) is arranged in the bottom plate gear box (2), and the bottom end of the bottom plate connecting shaft (8) is connected with a bottom plate (14).

2. The geotechnical performance test apparatus according to claim 1, wherein: the upper box body (10) is provided with lower caulking grooves (28) on two parallel side surfaces contacted with the bottom surface of the upper box body, upper caulking grooves (29) are processed at the positions where the lower caulking grooves (28) are contacted with the top surface of the lower box body (17), the upper caulking grooves (29) are aligned with the lower caulking grooves (28) and then connected with box body panels (25), and the box body panels (25) are placed in a space formed by the upper caulking grooves (29) and the lower caulking grooves (28); the box panel (25) is L-shaped, and the part of the box panel extending out of the lower caulking groove (28) is contacted with the bottom surface of the box sleeve (23).

3. The geotechnical performance test device according to claim 2, characterized in that: the bottom surface of the lower box body (17) is provided with an edge part (30), and the longitudinal section of the edge part (30) is of an inverted triangular structure.

4. The geotechnical performance test apparatus according to claim 2 or 3, wherein: sleeve handles (24) are arranged on two sides of the box body sleeve (23), the box body sleeve (23) presses the box body panel (25) downwards through the sleeve handles (24), and the box body sleeve (23) is taken out from the upper box body (10) and the lower box body (17) after sampling is completed.

5. The geotechnical performance test apparatus according to claim 1, wherein: the bottom plate connecting shafts (8) are respectively arranged on two sides of the bottom plate (14), and the bottom plate connecting shafts (8) penetrate through a bottom plate shaft sleeve (7) below the bottom plate gear box (2) and then are connected with the bottom plate gear box (2); the bottom plate gear box (2) drives the bottom plate connecting shaft (8) to move up and down through the bottom plate rocker (3).

6. The geotechnical performance test apparatus according to claim 1, wherein: the bottom plate gear boxes (2) are located on two sides of the U-shaped support (1), and the bottom plate gear boxes (2) on two sides of the U-shaped support (1) are connected through the synchronizing rods (6).

7. The geotechnical performance test apparatus according to claim 1, wherein: the U-shaped support (1) is further provided with a pressing plate gear box (4) at the middle position, a pressing plate shaft body (20) moving up and down is arranged in the pressing plate gear box (4), and the bottom end of the pressing plate shaft body (20) is connected with a pressing plate (9); the bottom surface of the pressure plate (9) is contacted with the top surface of the upper box body (10).

8. The geotechnical performance test device according to claim 6, characterized in that: the U-shaped support (1) is further provided with a pressing plate shaft sleeve (21) coaxial with the pressing plate shaft body (20) at the bottom of the pressing plate gear box (4), and the pressing plate shaft body (20) penetrates through the pressing plate shaft sleeve (21) and then is connected with the pressing plate gear box (4).

9. The geotechnical performance test apparatus according to claim 1, wherein: the top of the U-shaped bracket (1) is provided with a level gauge (22).

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