CN206056769U - A kind of pedestal - Google Patents

Abstract

The utility model provides a pedestal, which comprises: a fixed abutment, one end of the fixed abutment is connected with a movable plate; The other ends are connected; sensors for testing the vibration signals of rock and soil bodies at different depths, the sensors are installed on the fixed base; drill rods for screwing the base into the rock and soil bodies, the drill One end of the rod is connected to the other end of the connecting rod; wherein, the connecting rods have different lengths; in this way, the arrangement of measuring points can be completed only by using the force-applying parts, because the base also includes azimuth positioning Components and direction calibration components, so the test direction and orientation of the sensor arrangement can be ensured, and then high-precision rock and soil vibration signals can be obtained.

Description

a base

technical field

The utility model belongs to the technical field of rock and soil testing, in particular to a base.

Background technique

In the field vibration test of rock and soil, the test sensor is generally used to collect rock and soil signals.

In the prior art, the fixing method of the vibration test sensor on the measuring point is generally to use gypsum and 502 glue to directly fix the sensor on the rock and soil mass test site to be tested. This method has four disadvantages: first, the fixation effect is not good for the loose rock-soil medium on the surface; The additional workload of the test; third, for special environments, such as tunnels containing accumulated water, short-term or perennial water accumulation on the surface (such as depressions, streams) and other environments that are not suitable for sensor work, the side walls of tunnels and rock and soil In the environment where it is difficult to place the sensor, the normal operation of the sensor is blocked; fourth, for the vibration signal at a certain depth of the rock and soil that needs to be tested, if the sensor is directly fixed on the surface of the measuring point without excavating to the measuring point, the measured The vibration signal cannot truly reflect the signal at the measuring point.

In addition, there are certain requirements for the test direction and orientation of the sensor arrangement, such as horizontal and vertical directions, and the test orientation is uniform, but in the field, it is generally arranged by human estimation. The test direction and orientation of the sensor layout have an important impact on the test results. Excessive deviations in direction and orientation may even cause data failure and make it unusable.

Based on this, there is an urgent need for a base to fix the test sensor to solve the above-mentioned problems in the prior art.

Utility model content

Aiming at the problems existing in the prior art, the embodiment of the utility model provides a base, which is used to solve the cumbersome way of fixing the test sensor and the obtained test data when using the test sensor to test the vibration signal of the rock and soil body in the prior art. Inaccurate technical issues.

The utility model provides a base, which comprises:

a fixed abutment, one end of which is connected to the movable plate;

connect the high rod, one end of the connected high rod is connected with the other end of the fixed abutment;

A sensor, the sensor is installed on the fixed base for testing the vibration signal of the rock and soil body;

a drill rod, one end of the drill rod is connected to the other end of the extension rod, and is used to screw the base into the rock-soil body; wherein,

The drilling rod is screwed into a predetermined depth by using extension rods of different lengths, and the sensor can acquire vibration signals of rock and soil bodies at different depths.

In the above scheme, the fixed base includes:

a fixed plate, one end of the fixed plate is connected with the movable plate through a first screw;

A base block, one end of the base block is connected with the other end of the fixing plate.

In the above solution, the base further includes: a connecting tube, one end of the drill rod is connected to the other end of the connecting rod through the connecting tube.

In the above solution, the base further includes: an azimuth positioning component, and the azimuth positioning component is installed at one end of the movable plate.

In the solution above, the base further includes: a direction calibrating part, the direction calibrating part is installed on the movable plate and located on one side of the direction calibrating part.

In the above solution, the azimuth positioning component specifically includes: a compass.

In the above solution, the direction calibration component specifically includes: a vertical strip vial.

In the above solution, the base further includes: a force applying component, before the fixed base is connected to the rising pole, one end of the rising pole is also connected to the force applying component.

In the above solution, the force applying component includes:

a ring connected to the sleeve;

The second screw rod passes through the sleeve and is respectively connected with the screw holes of the connecting rod and the drill rod.

In the above solution, the movable plate, the fixed plate and the base block are all provided with slots for dredging the wiring of the sensor.

The utility model provides a pedestal, the pedestal comprises: a fixed abutment, one end of the fixed abutment is connected with a movable plate; The other ends are connected; sensors for testing the vibration signals of rock and soil bodies at different depths, the sensors are installed on the fixed base; drill rods for screwing the base into the rock and soil bodies, the drill One end of the rod is connected to the other end of the connecting rod; wherein, the connecting rods have different lengths; in this way, the arrangement of measuring points can be completed only by using the force-applying parts, because the base also includes azimuth positioning Components and direction calibration components, so the test direction and orientation of the sensor arrangement can be ensured, and then high-precision rock and soil vibration signals can be obtained.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the base provided by the embodiment of the present invention;

Fig. 2 is the top view of the movable plate provided by the embodiment of the utility model;

Fig. 3 is a top view of the fixed abutment provided by the embodiment of the present invention;

Fig. 4 is the side view of the connecting rod provided by the embodiment of the utility model;

Fig. 5 is the top view of the connecting rod provided by the embodiment of the present invention;

Figure 6 is a side view of the drill rod provided by the embodiment of the present invention;

Figure 7 is a top view of the drill rod provided by the embodiment of the present invention;

Fig. 8 is a top view of the height connecting cylinder provided by the embodiment of the present invention;

Fig. 9 is a top view of the force application component provided by the embodiment of the present invention.

Explanation of reference signs:

1-movable plate; 2-connecting high rod; 3-sensor; 4-drilling rod; 5-fixed plate; 6-base block; 7-connecting high cylinder; Ring; 11-sleeve; 12-second screw.

detailed description

When using the test sensor to test the vibration signal of the rock and soil body, in order to solve the technical problem that the method of fixing the test sensor is cumbersome and the obtained test data is inaccurate, the utility model provides a base, and the base includes: a fixed base platform, one end of the fixed abutment is connected to the movable plate; a high pole is connected, one end of the high pole is connected to the other end of the fixed abutment; sensors for testing vibration signals of rock and soil bodies at different depths, the The sensor is installed on the fixed base; a drilling rod for screwing the base into the rock and soil body, one end of the drilling rod is connected with the other end of the connecting rod; wherein, the The extension poles come in different lengths.

The technical scheme of the utility model is described in further detail below through the accompanying drawings and specific embodiments.

This embodiment provides a base, as shown in Figure 1, the base includes: a fixed base, a movable plate 1, a connecting rod 2, a sensor 3, a drill rod 4; wherein,

One end of the fixed abutment is connected with the movable plate 1; one end of the connecting rod 2 is connected with the other end of the fixed abutment; the sensor 3 is installed on the fixed abutment for testing rock and soil The vibration signal of the body; one end of the drilling rod 4 is connected with the other end of the extension rod 2 for screwing the base into the rock and soil body. The sensor 3 is a vibration sensor.

Specifically, referring to Fig. 1, the fixed abutment includes: a fixed plate 5, a base block 6 and a height-connecting tube 7; the fixed plate 5 is arranged with a first screw along a diagonal line, and the first screw includes two , one corner of the fixed plate 5 is connected with one corner of the movable plate 1 by a first screw, and the other corner of the fixed plate 5 is connected with the other corner of the movable plate 1 by a first screw; the base block 6 One end of the base block 6 is connected with the other end of the fixing plate 5, and the other end of the base block 6 is connected with one end of the connecting rod 2 through threads. One end of the drill rod 4 is connected to the other end of the connecting rod 2 through the connecting tube 7 .

Wherein, referring to FIG. 2 , a slot is opened on the movable plate 1 for dredging the wiring of the sensor 3 ; in this embodiment, the diameter of the slot is 2 cm, and the thickness is 0.5 cm. The center of the movable plate 1 has a height of 0.5 cm and a thickness of 0.2 cm. The movable plate 1 is also provided with a wing wall with an inner side length of 6 cm to limit the displacement of the sensor 3 . In other embodiments, the diameter and thickness of the slot; the center height, thickness and side length of the wing wall of the movable panel 1 can be set according to actual needs.

Referring to FIG. 3 , a slot is opened on the fixed base for dredging the wiring of the sensor 3 ; the diameter of the slot is 2 cm, and the thickness is 0.5 cm.

Referring to Fig. 4 and Fig. 5, one end of the connecting rod 2 is also provided with three screw holes and threads. In this embodiment, the diameter of the thread is 2.5 cm, and the outer diameter of the connecting rod 2 is 5 cm. Also be provided with scale mark on described connecting high bar 2. In other embodiments, the thread diameter and outer diameter of the extension rod 2 can be set according to actual needs.

6 and 7, one end of the drill rod 4 is also provided with three screw holes and threads. In this embodiment, the length of the drill rod 4 is 25 cm, and the tapered part at the other end is 10 cm. Scale marks are also arranged on the drill rod 4 . In other embodiments, the length of the drill rod 4 and the length of the tapered portion can be set according to actual needs.

Referring to Fig. 8, in the present embodiment, the length of the connecting tube 7 is 5cm, the inner diameter is 1.5cm, and the outer diameter is 5cm; in other embodiments, the length, inner diameter and outer diameter of the drill rod connecting tube 7 It can be set according to actual needs.

Here, in order to measure the vibration signal of the rock-soil mass under different coating thicknesses or ponding depths, the connecting rods 2 may include a plurality, and the lengths of each connecting rod 2 are different.

Further, in order to ensure the installation direction and orientation of the sensor 3, the base also includes: an orientation positioning component 8 and a direction calibration component 9; wherein, the orientation positioning component 8 is installed at one end of the movable plate 1, and the The direction calibrating part 9 is installed on the movable board 1 and is located on one side of the direction calibrating part 8 , and the direction calibrating part 8 may include two, which are installed on the movable board 1 perpendicular to each other. The azimuth positioning component 9 may specifically include: a compass; the direction calibration component may specifically include: a vertical strip vial.

Here, in order to facilitate the screwing of the base into the rock and soil mass, the base also includes: a force applying part, before the fixed base is connected with the elevated pole 2, the One end is connected with the force applying part to screw the base into the rock and soil mass.

Specifically, the force applying part may be a screw-in handwheel, as shown in FIG. 9, the force applying part includes: a ring 10, a sleeve 11 and a second screw 12; wherein,

The ring 10 is connected to the sleeve 11; the second screw rod 12 passes through the sleeve 11 and is connected to the screw holes of the connecting rod 2 and the drill rod 4 respectively. The second screw may include three.

Here, the movable plate 1, the connecting rod 2, the sensor 3, the drill rod 4, the fixed plate 5, the base block 6, the connecting rod 7 and the force application parts can be 7.85g/cm by density, and the modulus of elasticity is 200GPa, Poisson's ratio is 0.3, tensile strength is 420MPa ordinary carbon structural steel, also can be made of low carbon steel and stainless steel.

In practical application, according to the distance between the middle measuring point in the rock and soil mass and the distance from the ground surface, the number of connecting rods 2 of appropriate length is selected, and the selected connecting rods 2 are connected with the drill rod 4 by using the connecting tube 7, and the The coating thickness of the measuring point is marked on the drill rod 4, and finally the force-applying part is connected to the connecting rod 2 at the end, and the drill rod 4 and the connecting rod 2 are screwed into the specified At the depth of the rod, take the mark on the rod as the standard, then remove the force-applying part, connect the fixed abutment with one end of the high-rise rod 2, install and fix the sensor 3 on the fixed abutment, and finally pass the movable plate The vertical strip level on the 1 adjusts the horizontal and vertical squares, and records the compass 8 azimuths on the movable plate 1. After the adjustment is completed, the sensor is used to collect the vibration signal of the depth. Wherein, the base can collect vibration signals when the depth of rock and soil is 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, 55cm.

The vibration measuring sensor provided by the base arrangement of the utility model can test the vibration signal at a certain position in the rock and soil mass. Compared with the method of laying out points on the surface of rock and soil directly above the test points, the measuring points will be more accurate, and the obtained test results can more accurately reflect the signals at the test points; at the same time, using the base device to arrange the vibration measurement The sensor can complete the arrangement of measuring points without other tools in the field, and it can also be conveniently arranged in tunnels with accumulated water, in rock and soil, and on the side walls of tunnels or rock and soil, which are difficult to adapt to the use of sensors. In the environment where it is not convenient to arrange sensors; in loose rock and soil media, such as strongly weathered rock mass and residual slope deposits, it can better solve the problem of not being easy to connect to fixed sensors; it can also adjust the horizontal and vertical directions 1. Test orientation, so that the test orientation of the sensor can more accurately reflect the real orientation, the test orientation of the sensor array can be synchronized more accurately, and it is convenient for manual operation when there are few tools in the field.

The above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principles of the utility model are all Should be included in the scope of protection of the present utility model.

Claims (10)

1. A base, comprising:

one end of the fixed base platform is connected with the movable plate;

one end of the height connecting rod is connected with the other end of the fixed base station;

the sensor is used for testing vibration signals of rock and soil masses at different depths and is arranged on the fixed base station;

the drill rod is used for screwing the base into the rock-soil body, and one end of the drill rod is connected with the other end of the heightening rod; wherein the tie-rods have different lengths.

2. The base of claim 1, wherein the fixed abutment comprises:

one end of the fixed plate is connected with the movable plate through a first screw rod;

and one end of the base block is connected with the other end of the fixing plate.

3. The base of claim 1, wherein the base further comprises: and one end of the drill rod is connected with the other end of the heightening rod through the heightening cylinder.

4. The base of claim 1, wherein the base further comprises: an orientation positioning member mounted at one end of the movable plate.

5. The base of claim 4, wherein the base further comprises: a direction alignment member mounted on the movable plate and located at one side of the direction alignment member.

6. The base of claim 4, wherein the orientation positioning component specifically comprises: a compass.

7. The base of claim 5, wherein the orientation alignment component specifically comprises: a vertically elongated vial.

8. The base of claim 1, wherein the base further comprises: and the force application component is connected with one end of the heightening rod before the fixed base station is connected with the heightening rod.

9. The base of claim 8, wherein the force applying component comprises:

the circular ring is connected with the sleeve;

and the second screw rod penetrates through the sleeve and is respectively connected with the screw holes of the heightening rod and the drill rod.

10. The base of claim 2, wherein the movable plate, the fixed plate and the base block are all provided with a slot for dredging the wiring of the sensor.