CN211652270U - Geotechnical model experiment compaction device suitable for multiple working conditions - Google Patents

Abstract

The utility model provides a geotechnical model experiment compaction device suitable for multiple working conditions, comprising a model box and a compaction device connected with the model box. The compaction device includes a hydraulic device and a fixing device which are connected in sequence. The hydraulic device is connected with a hydraulic rod, the fixing device is a hollow structure, the hydraulic rod passes through the fixing device, and one end of the hydraulic rod passing through the fixing device is connected with a compacted steel plate; the fixing device is also hinged with a support The support device is a handle-type connection device or an inner support-type connection device. The compaction device of the utility model has a simple design, is flexible and convenient to operate, light in weight, safe and reliable, has two operation modes, and can compact the soil at any position. Use space.

Description

A compaction device for geotechnical model experiments suitable for multiple working conditions

technical field

The utility model belongs to the technical field of geotechnical model experiments, in particular to a compaction device for geotechnical model experiments suitable for multiple working conditions.

Background technique

Centrifugal model experiment is an experimental method that simulates the gravity field to simulate the actual engineering state, and is a method used to solve practical engineering problems and theoretical research. The geotechnical centrifuge is mainly composed of a support, a counterweight box, a model box, and a hanging basket. The geotechnical centrifuge is used to simulate the stress, deformation and failure of the prototype geotechnical structure, verify the design scheme, conduct material parameter research, verify the mathematical model and numerical analysis calculation results, and is widely used in the field of geotechnical engineering. Through the principle of similarity, the geometric shape of the object is scaled down, and the soil with the same physical properties is used to make a model, so that the stress state in the centrifugal force field is consistent with the prototype in the gravity field, so as to study the testing technology of engineering properties.

Soil compaction refers to the use of artificial or mechanical means to apply mechanical energy to the soil, so that the soil particles are rearranged and compacted, so that the soil can obtain new structural strength in a short time, including enhancing the friction and occlusion between coarse-grained soils. , as well as increasing the molecular attraction between fine-grained soils. In the centrifugal model experiment, various actual working conditions need to be simulated in the model box, such as the pile settlement simulation experiment, which needs to simulate the actual soil layer. Due to the limitation of the size of the model box, manual compaction hammers are generally used for soil compaction, while larger machinery is generally not used for compaction. Physical expenditure and a lot of time wasted at the same time, but sometimes the compaction effect is not ideal, such as uneven soil compaction, difficult to control the soil compaction depth and so on.

SUMMARY OF THE INVENTION

Aiming at the above-mentioned deficiencies and defects of the prior art, the purpose of this utility model is to provide a compaction device for geotechnical model experiments suitable for multiple working conditions, so as to solve the problem of uneven soil compaction and difficult soil compaction depth in the device in the prior art. Controlling technical issues.

In order to achieve the above purpose, the present application adopts the following technical solutions to achieve: a compaction device for geotechnical model experiments suitable for multiple working conditions, comprising a model box and a compaction device connected with the model box, and the compaction device includes sequentially The hydraulic device and the fixing device are connected, the hydraulic device is connected with a hydraulic rod, the fixing device is a hollow structure, one end of the hydraulic rod is connected with the hydraulic device, and the other end passes through the fixing device and is connected with a compacted steel plate;

The fixing device is also hinged with a supporting device, and the supporting device is a handle-type connection device or an inner support-type connection device.

The utility model also has the following technical features:

The handle-type connecting device includes a telescopic grab handle and a connecting sliding rod, one end of the connecting sliding rod is socketed with the telescopic grab handle, and the other end is connected with a connecting sleeve head, and the connecting sleeve head is connected through a first connection. The parts are connected to the fixing device;

The first connecting piece includes an ear plate connected to the fixing device and a connection ring connected to the ear plate, and the connection sleeve is hinged with the connection ring;

The lugs are arranged at intervals of 120° on the fixing device.

A tightening bolt is arranged on the telescopic handle.

The inner support type connecting device includes a telescopic rod and a connecting rod that are sleeved. One end of the telescopic rod is sleeved with the connecting rod, and the other end is hinged with the inner wall supporting steel plate. One end of the connecting rod is connected with the telescopic rod, and the other end is connected with the telescopic rod. One end is connected with the connecting sleeve, and the connecting sleeve is hinged with the fixing device through the second connecting piece; the inner supporting connecting devices are used in pairs;

The second connecting pieces are arranged at intervals of 120° on the fixing device.

The connecting rod is provided with a tightening bolt.

A handle is also connected to the fixing device, and a circular level is also arranged on the fixing device.

The hydraulic rod is provided with a scale, and the hydraulic rod is connected with the compacted steel plate through a steel plate fixing bolt.

Compared with the prior art, the present utility model has the following beneficial technical effects:

(I) The compaction device of the present utility model is simple in design, flexible and convenient to operate, light in weight, safe and reliable, has two operation modes, and can carry out compaction of soil at any position. At the same time, the device is detachable and does not occupy a larger space for use;

(II) The utility model can greatly improve the compaction effect through this device, reduce the experimental error caused by problems such as uneven compaction, save manpower, reduce the overall experimental time, and improve the experimental efficiency.

(III) The utility model can effectively control the compaction depth by having a scale at the lower part of the hydraulic device.

Description of drawings

Figure 1 is the overall schematic diagram of the handle type and inner support type device

Figure 2 is a top view of the handle-type device

Figure 3 is a top view of the inner support device

Figure 4 is a working schematic diagram of the handle-type device

Figure 5 is a schematic diagram of the working of the inner support device

Figure 6 is a schematic diagram of the connection between the hydraulic device and the handle-type device

Figure 7 is a schematic diagram of the connection between the hydraulic device and the inner support device

Figure 8 is an enlarged view of the inner wall supporting steel plate

Figure 9 is a schematic diagram of the lower scale of the hydraulic device

Figure 10 is a schematic diagram of the complete set of compacted steel plates

Figure 11 is a schematic diagram of the model box

The meanings of the symbols in the figure are: 1-model box, 2-compacting device, 3-hydraulic device, 4-fixing device, 5-hydraulic rod, 6-compacting steel plate, 7-supporting device, 8-grip handle Connection device, 9-inner support type connection device, 10-telescopic handle, 11-connecting sliding rod, 12-connecting sleeve, 13-first connecting piece, 14-ear plate, 15-connecting ring, 16-tightening bolt, 17- telescopic rod, 18- connecting rod, 19- inner wall supporting steel plate, 20- second connecting piece, 21- handle, 22- circular level, 23- scale, 24- steel plate fixing bolt, 25- soil body.

The specific content of the present utility model will be further explained in detail below in conjunction with the accompanying drawings and embodiments.

Detailed ways

Specific embodiments of the present utility model are given below. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solutions of the present application all fall into the protection scope of the present utility model.

The multiple working conditions in the present utility model refer to the working conditions that require more compacted soil and the working conditions that require less compacted soil.

Example 1:

Following the above technical solutions, as shown in Figures 1 to 11, the present embodiment provides a geotechnical model experiment compaction device suitable for multiple working conditions, including a model box 1 and a compaction device 2 connected to the model box 1, It is characterized in that the compaction device 2 includes a hydraulic device 3 and a fixing device 4 which are connected in sequence, a hydraulic rod 5 is connected to the hydraulic device 3, the fixing device 4 is a hollow structure, and the hydraulic rod 5 passes through. Through the fixing device 4, one end of the hydraulic rod 5 is connected with the hydraulic device 3, and the other end passes through the fixing device 4 and is connected with a compacted steel plate 6;

The hydraulic device 3 drives the compacted steel plate 6 to compact the soil in the model box 1 . The hydraulic device 3 may be an automatic hydraulic device or a manual hydraulic device.

The fixing device 4 is also hinged with a support device 7 , and the support device 7 is a handle-type connection device 8 or an inner support-type connection device 9 . The handle-type connection device 8 and the inner support-type connection device 9 are used to connect the model box 1 and the compaction device 2 .

As a preference of this embodiment, the handle-type connecting device 8 includes a telescopic grab handle 10 and a connecting sliding rod 11 that are sleeved. One end of the connecting sliding rod 11 is sleeved with the telescopic grab handle 10, and the other end Connected with the connecting sleeve 12, the connecting sleeve 12 is connected with the fixing device 4 through the first connecting piece 13; one end of the telescopic handle 10 is a hook-shaped structure, which is convenient to connect with the model box 1, and the telescopic handle 10 is connected with the sliding rod 11 Socketed, telescopic grab handle 10 can be turned to find the right position.

The first connecting piece 13 includes an ear plate 15 connected to the fixing device 14 and a connecting ring 16 connected to the ear plate 15. The connecting sleeve head 12 is hinged with the connecting ring 16; the arrangement of the connecting ring 16 can make the connecting sleeve head 12 can slide on the connecting ring 16, so that the telescopic handle 10 can find the most suitable connection position with the model box;

The lugs 15 are arranged on the fixing device 4 at intervals of 120°.

As a preferred feature of this embodiment, the telescopic handle 10 is provided with a tightening bolt 17 . After the telescopic handle 10 finds the most suitable connection position with the model box, the telescopic handle 10 is fixed by tightening the bolts 17 so that it can no longer be rotated.

As a preference of this embodiment, the inner support type connecting device 9 includes a telescopic rod 18 and a connecting rod 19 that are sleeved, one end of the telescopic rod 18 is sleeved with the connecting rod 19, and the other end is sleeved with the inner wall supporting steel plate 20 is hinged, one end of the connecting rod 19 is connected with the telescopic rod 18, and the other end is connected with the connecting sleeve 12, the connecting sleeve 12 is hinged with the fixing device 4 through the second connecting piece 21; the telescopic rod 18 and the connecting rod 19 are sleeved After connecting, the telescopic rod 18 can be rotated to help the inner wall support the steel plate 20 to be in close contact with the inner wall of the model box 1, so as to facilitate the compaction operation.

When in use, the inner support type connecting devices 9 appear in pairs to form a triangular support, which is more stable.

The second connecting pieces 21 are arranged at intervals of 120° on the fixing device 4 .

As a preference of this embodiment, the connecting rod 19 is provided with a tightening bolt 17 .

As a preference of this embodiment, the fixing device 4 is further connected with a handle 22 , and the fixing device 4 is also arranged with a circular level 23 . The handle 22 plays the role of facilitating the carrying and carrying of the compaction device 2, and the circular level 23 can make the device in a horizontal plane, so that the soil layer is compacted more evenly and the error of the experiment is reduced.

As a preference of this embodiment, the hydraulic rod 5 is provided with a scale 24 , and the hydraulic rod 5 is connected to the compacted steel plate 6 through a steel plate fixing bolt 15 . According to the scale 24, the compaction depth can be accurately controlled and the test deviation can be reduced.

The usage of this embodiment is as follows:

When there is a lot of soil to be compacted in the model box, the handle-type connecting device 8 is used,

Grab handle type: the fixing device 4 is connected with the connecting sliding rod 11 through the connecting sleeve 12, the connecting sliding rod 11 can be removed from the connecting sleeve 12, and the connecting sliding rod 11 is connected with the telescopic grab handle 10. There are three telescopic grab handles 10 in total. The telescopic handle 10 can be freely disassembled, and the telescopic handle 10 can be rotated horizontally around the fixing device 4 by 120 degrees, and the telescopic handle 10 can be rotated 360 degrees. The telescopic handle 10 is fixed on the outer wall of the model box 1 to adjust different angles. , to adapt to the different positions of the top edge of the model box 1, the telescopic handle 10 is controlled by the tightening bolt 17 for its telescopic length. The lower part of the hydraulic device 3 is provided with a scale 24, which can accurately control the compaction depth. At the same time, the lower part is fixed by a steel plate fixing bolt 25 to fix the compacted steel plate 6. The compacted steel plate 6 has a complete set of types of steel plates. Change to a different model.

When there is less soil to be compacted in the model box, the inner support type connecting device 9 is used,

Internal support type: the fixing device 4 is connected with the connecting rod 19 through the connecting sleeve 12, the connecting sleeve 12 is hinged with the fixing device 4 through the second connecting piece 21, the connecting rod 19 can be freely removed, the connecting rod 19 is connected with the telescopic rod 18, and the telescopic The rod 18 is controlled by the tightening bolt 17 on the upper part of the connecting rod 19 to control the length of the telescopic rod 18. The telescopic rod 18 can rotate 360 degrees, and the telescopic rod 18 is connected to the inner wall supporting steel plate 20, which is supported on the inner wall of the model box 1 by the inner wall supporting steel plate 20. The inner wall supporting steel plate 20 can be rotated 120 degrees up and down, and the angle is adjusted to be supported on the inner wall of the model box 1, and then the test soil is compacted. There are six inner support connection devices, each of which is a group, and the space between each group is The included angle is 120 degrees, each supporting connection device can be rotated 90 degrees up and down, and a triangle is formed between the two supporting connection devices in each group and the model box 1, which is used to stabilize the whole device from tilting. The lower part of the hydraulic device 3 is provided with a detailed scale 24, which can accurately control the depth of compaction according to the scale 24. The lower part is fixed by 25 steel plate fixing bolts on the hydraulic device. The compacted steel plate 6 has a A complete set of types of steel plates, with regular and irregular types, can be selected according to the requirements of the working conditions.

Claims (7)

1. The geotechnical model experiment compaction device suitable for multiple working conditions comprises a model box (1) and a compaction device (2) connected with the model box (1), and is characterized in that the compaction device (2) comprises a hydraulic device (3) and a fixing device (4) which are sequentially connected, a hydraulic rod (5) is connected to the hydraulic device (3), one end of the hydraulic rod (5) is connected with the hydraulic device (3), and the other end of the hydraulic rod penetrates through the fixing device (4) and is connected with a compaction steel plate (6);

the fixing device (4) is also hinged with a supporting device (7), and the supporting device (7) is a grab handle type connecting device (8) or an inner support type connecting device (9).

2. The geotechnical model experiment compaction device applicable to multiple working conditions as claimed in claim 1, wherein said grab handle type connecting device (8) comprises a telescopic grab handle (10) and a connecting slide rod (11) which are sleeved, one end of the connecting slide rod (11) is sleeved with the telescopic grab handle (10), the other end is connected with a connecting sleeve head (12), and the connecting sleeve head (12) is connected with the fixing device (4) through a first connecting piece (13);

the first connecting piece (13) comprises an ear plate (14) connected with the fixing device (4) and a connecting ring (15) connected on the ear plate (14), and the connecting sleeve head (12) is hinged with the connecting ring (15);

the ear plates (14) are arranged on the fixing device (4) at intervals of 120 degrees.

3. The geotechnical model experiment compaction device applicable to multiple working conditions in accordance with claim 2, wherein the telescopic grab handle (10) is provided with a clamping bolt (16).

4. The geotechnical model experiment compaction device applicable to multiple working conditions, according to claim 1, is characterized in that the internal support type connecting device (9) comprises a telescopic rod (17) and a connecting rod (18) which are sleeved, one end of the telescopic rod (17) is sleeved with the connecting rod (18), the other end of the telescopic rod is hinged with an inner wall supporting steel plate (19), one end of the connecting rod (18) is connected with the telescopic rod (17), the other end of the connecting rod is connected with a connecting sleeve head (12), and the connecting sleeve head (12) is hinged with the fixing device (4) through a second connecting piece (20); the internal support type connecting devices (9) are used in pairs;

the second connecting pieces (20) are arranged on the fixing device (4) at intervals of 120 degrees.

5. The geotechnical model experiment compaction device applicable to multiple working conditions of claim 4 is characterized in that a clamping bolt (16) is arranged on the connecting rod (18).

6. The geotechnical model experiment compaction device applicable to multiple working conditions according to claim 1, characterized in that the fixing device (4) is further connected with a handrail (21), and the fixing device (4) is further provided with a circular level (22).

7. The geotechnical model experiment compaction device applicable to multiple working conditions of claim 1 is characterized in that a graduated scale (23) is arranged on the hydraulic rod (5), and the hydraulic rod (5) is connected with a compaction steel plate (6) through a steel plate fixing bolt (24).

Images