CN220982444U - Blasting vibration monitoring device in tunnel construction - Google Patents
Blasting vibration monitoring device in tunnel construction Download PDFInfo
- Publication number
- CN220982444U CN220982444U CN202323027188.2U CN202323027188U CN220982444U CN 220982444 U CN220982444 U CN 220982444U CN 202323027188 U CN202323027188 U CN 202323027188U CN 220982444 U CN220982444 U CN 220982444U
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- monitoring
- monitoring element
- monitored
- outer shell
- blasting vibration
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- 238000005422 blasting Methods 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000012806 monitoring device Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 69
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 description 9
- 238000012876 topography Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a blasting vibration monitoring device in tunnel construction, which comprises a monitoring element, an outer shell and a blasting vibration monitoring device, wherein the monitoring element is provided with a monitoring surface, the monitoring surface is attached to an object to be monitored, one side of the outer shell is provided with an opening, the outer shell is used for tightly wrapping the monitoring element, and the monitoring surface of the monitoring element is exposed from one side of the opening of the shell; rubber pads are arranged on the inner walls of the outer shell body, which are in contact with the monitoring element; fixing plates are fixedly arranged on two sides of the outer shell, waist-shaped holes are symmetrically formed in the fixing plates on two sides, and fasteners fixedly connected with an object to be monitored are arranged in the waist-shaped holes; the fixing plate and one side of the outer shell facing the object to be monitored are flush with the monitoring surface. The utility model can effectively promote the convenience of installing and detaching the monitoring element, and can provide protection for the monitoring element while fixing the monitoring element.
Description
Technical Field
The utility model relates to the technical field of blasting vibration monitoring. More particularly, the present utility model relates to a blasting vibration monitoring device in tunnel construction.
Background
In recent years, the construction of high-speed railways in China is rapidly developed, the topography and the topography of China are complex and changeable, 70% of the topography and the topography of China are mountain areas and hilly areas, and the tunnel engineering occupation ratio is large when the high-speed railways are constructed in mountain areas. Blasting is a frequently used construction means for tunnel engineering, and in order to monitor the influence of blasting on tunnel construction, a plurality of blasting vibration meters are usually provided on a tunnel arm adjacent to a tunnel face. The blasting vibration meter that conventional use at present includes monitor and sensor, and the sensor uses U type anchor clamps and expansion bolts to fix at the surface of measured object generally, and rethread cable is connected with the monitor, and the monitor generally sets up in the protective housing, but the sensor direct exposure is outside. On the one hand, the method cannot ensure the complete fixation of the sensor, the surface of the sensor and the surface of the object to be measured also needs to be glued to increase the connection tightness, and the sensor is difficult to disassemble; on the other hand, although the sensor is subjected to the packaging process, there is still a risk of damage by shock waves and crushed stones generated by the blasting. In order to solve the problem, the prior art generally adopts a complex vibration damper arranged on the periphery of the sensor, and the sensor is protected, but the sensor is complex to install, so that the construction efficiency is seriously influenced for a large use amount in a tunnel, and meanwhile, the construction cost is also improved.
Disclosure of utility model
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, as embodied and broadly described herein, there is provided a blast vibration monitoring apparatus in tunnel construction, comprising a monitoring element having a monitoring surface which is fitted to an object to be monitored, and an outer case having an opening at one side thereof, the outer case being adapted to closely wrap the monitoring element with the monitoring surface of the monitoring element exposed from the side of the opening of the case; rubber pads are arranged on the inner walls of the outer shell body, which are in contact with the monitoring element; fixing plates are fixedly arranged on two sides of the outer shell, waist-shaped holes are symmetrically formed in the fixing plates on two sides, and fasteners fixedly connected with an object to be monitored are arranged in the waist-shaped holes; the fixing plate and one side of the outer shell facing the object to be monitored are flush with the monitoring surface.
Preferably, a lower fixing plate is arranged at the bottom of the outer shell, the lower fixing plate and the fixing plates at two sides form a concave lower connecting plate together, and the top surfaces of the fixing plates at two sides are not lower than the center of the outer shell.
Preferably, the device further comprises an outer protective cover, wherein the outer protective cover is covered on the outer side of the outer shell; an upper connecting plate is fixedly arranged on one side, facing the object to be monitored, of the outer protective cover, and the upper connecting plate is in plug connection with the lower connecting plate.
Preferably, the lower connecting plate is provided with a concave slot corresponding to the periphery of the outer protective cover, and the outer protective cover is correspondingly provided with an inserting block matched with the slot.
Preferably, rubber pads are arranged on the inner walls of the slots, which are in contact with the plug blocks.
The utility model at least comprises the following beneficial effects:
1. according to the blasting vibration monitoring device in tunnel construction, the monitoring element is used for monitoring the influence of blasting in tunnel construction, the outer shell body tightly wrapped on the outer side of the monitoring element is used for ensuring that the monitoring element is tightly attached to an object to be monitored by matching with the fixing plates on two sides, meanwhile, protection is provided for the monitoring element, and the monitoring element is more convenient to mount and dismount.
2. According to the blasting vibration monitoring device in tunnel construction, the mounting angles of the monitoring elements can be accurately adjusted during mounting through the waist-shaped holes formed in the fixing plates on the two sides, the Z-axis of the monitoring elements is ensured to be vertically upwards, and further the accuracy of measured data is ensured.
3. According to the blasting vibration monitoring device in tunnel construction, the outer protective cover is used for protecting the monitoring element, and the outer protective cover is connected with the lower connecting plate in an inserting mode, so that the blasting vibration monitoring device can be installed and replaced quickly.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a front view of a blast vibration monitoring apparatus according to the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 3 is a left side view of the blast vibration monitoring apparatus according to the present utility model;
FIG. 4 is a front view of the outer shield of the present utility model;
FIG. 5 is a left side view of the outer shield of the present utility model;
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1 and 3, the utility model provides a blasting vibration monitoring device in tunnel construction, which comprises a monitoring element, a shell body 1 and a blasting vibration monitoring device, wherein the monitoring element is provided with a monitoring surface, the monitoring surface is attached to an object to be monitored, the shell body 1 is provided with an opening at one side, the shell body 1 is used for tightly wrapping the monitoring element, and the monitoring surface of the monitoring element is exposed from one side of the opening of the shell body 1; the inner walls of the outer shell 1, which are in contact with the monitoring element, are provided with rubber pads 5; the two sides of the outer shell 1 are fixedly provided with fixing plates 21, waist-shaped holes 4 are symmetrically formed in the fixing plates 21 on the two sides, and fasteners fixedly connected with an object to be monitored are arranged in the waist-shaped holes 4; the fixing plate 21 and the side of the outer shell 1 facing the object to be monitored are flush with the monitoring surface.
In this technical solution, the monitoring element is a monitoring element, typically a sensor, used in a conventional blasting rangefinder. Considering that the installation requirement of the monitoring element is that the monitoring surface is tightly attached to the object to be monitored, such as a tunnel side wall, and the monitoring surface and the tunnel side wall are rigidly connected into a whole, the monitoring element is tightly wrapped by the outer shell 1, only the monitoring surface of the monitoring element is exposed, and the monitoring element is fixed while the protection is provided for the monitoring element. The sensor used by the conventional blasting range finder is generally cubic, and the outer shell 1 can be of a box structure with one side open at the moment, and the size of the box structure is matched with that of the sensor to limit the sensor. During installation, the monitoring surface is attached to the tunnel side wall, then the outer shell 1 is fixed to the tunnel side wall through the fastener, and the monitoring surface is flush with one side, facing the object to be monitored, of the outer shell 1 through the fixing plate 21, so that the monitoring element is ensured to be attached to the object to be monitored. The fasteners may be bolts and nuts conventionally used. Through the waist-shaped holes 4 formed in the fixing plates 21 on two sides, the installation angle of the monitoring element can be accurately adjusted during installation, the Z-axis of the monitoring element is ensured to be vertically upward, and the accuracy of measurement data is further ensured. And in order to avoid hard contact between the outer housing 1 and the monitoring element, cushioning is provided by providing a rubber pad 5 between the two. Referring to fig. 3, a through hole 11 is formed at one side of the outer casing 1 for connecting the cable with the monitoring element.
In another technical solution, a lower fixing plate 22 is disposed at the bottom of the outer casing 1, the lower fixing plate 22 and the fixing plates 21 on two sides form a concave lower connecting plate 2 together, and the top surfaces of the fixing plates 21 on two sides are not lower than the center of the outer casing 1. Referring to fig. 1, the lower connecting plates 2 are correspondingly enclosed at both sides and the bottom of the outer case 1, and the lower fixing plates 22 and the fixing plates 21 may be integrally formed. In this case, the outer housing 1 is not completely enclosed, considering that the monitoring element is attached to the tunnel side wall for ease of installation. And the top surfaces of the fixing plates 21 on both sides are not lower than the center of the outer case 1, the stability of the mounting of the monitoring element is ensured by defining the length of the fixing plates 21 to be not less than half the height of the outer case 1.
In another technical solution, as shown in fig. 4 and 5, the device further comprises an outer protective cover 6, which is arranged on the outer side of the outer shell 1; an upper connecting plate 7 is fixedly arranged on one side, facing the object to be monitored, of the outer protective cover 6, and the upper connecting plate 7 is in plug connection with the lower connecting plate 2. When the outer casing 1 is made of conventional materials for cost consideration, the monitoring element may still be damaged after being deformed when being impacted by broken stone, so that the outer protection cover 6 is further covered on the outer side of the outer casing 1, and a certain space is arranged between the outer protection cover 6 and the outer casing 1 to ensure the protection of the monitoring element. On the other hand, in view of the convenience of installation, the installation of the outer shield 6 is achieved by the plugging of the upper connection plate 7 and the lower connection plate 2. Specifically, the plugging of the upper connection plate 7 and the lower connection plate 2 is achieved by the following manner: the fixing plates 21 on the two sides are provided with inserting grooves 221 on the opposite sides of the upper connecting plate 7, then two inserting blocks 71 are correspondingly arranged on the upper connecting plate 7, and the inserting blocks 71 are inserted into the corresponding inserting grooves 221 when the two inserting blocks are in butt joint.
In another technical solution, in order to increase the stability of the installation of the outer protection cover 6, referring to fig. 1 and 5, a concave slot 3 is disposed on the lower connection plate 7 corresponding to the outer periphery of the outer protection cover 6, and an insert 8 matched with the slot 3 is disposed on the outer protection cover 6 correspondingly. During installation, after the fixing of the outer casing 1 and the tunnel side wall is completed, the outer protection cover 6 is installed from top to bottom, the insert block 8 is aligned and inserted into the slot 3, and then moves downwards along the slot until the insert block 71 is inserted into the corresponding insert slot 221, and at this time, the insert block 8 at the bottom of the outer protection cover 6 also exactly enters the slot 3 at the bottom. It can be understood that the slot 3 has a concave structure, and the corresponding two sides of the outer casing facing the object to be monitored and the bottom are respectively provided with the insert 8. Preferably, the cross-sectional shapes of the slot 3 and the insert block 8 may be L-shaped, and the two are fastened in a staggered manner when combined, so that the connection is more stable.
Further, rubber pads are arranged on the inner walls of the slots 3, which are in contact with the insert blocks 8. When the outer shield 6 is hit or impacted, the impact on the outer housing 1 and the monitoring element is reduced by providing cushioning by the rubber pad.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (5)
1. The blasting vibration monitoring device in tunnel construction comprises a monitoring element, wherein the monitoring element is provided with a monitoring surface, and the monitoring surface is attached to an object to be monitored; rubber pads are arranged on the inner walls of the outer shell body, which are in contact with the monitoring element; fixing plates are fixedly arranged on two sides of the outer shell, waist-shaped holes are symmetrically formed in the fixing plates on two sides, and fasteners fixedly connected with an object to be monitored are arranged in the waist-shaped holes; the fixing plate and one side of the outer shell facing the object to be monitored are flush with the monitoring surface.
2. The blasting vibration monitoring device in tunnel construction of claim 1, wherein a lower fixing plate is provided at the bottom of the outer case, the lower fixing plate and the fixing plates at both sides together constitute a lower connecting plate in a concave shape, and the top surfaces of the fixing plates at both sides are not lower than the center of the outer case.
3. The blasting vibration monitoring device in tunnel construction of claim 2, further comprising an outer shield cover provided outside the outer housing; an upper connecting plate is fixedly arranged on one side, facing the object to be monitored, of the outer protective cover, and the upper connecting plate is in plug connection with the lower connecting plate.
4. The blasting vibration monitoring device in tunnel construction of claim 3, wherein the lower connecting plate is provided with a concave slot corresponding to the periphery of the outer shield, and the outer shield is provided with a plug block corresponding to the slot.
5. The blasting vibration monitoring device in tunnel construction of claim 4, wherein the inner walls of the insertion grooves and the insertion blocks are provided with rubber pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323027188.2U CN220982444U (en) | 2023-11-09 | 2023-11-09 | Blasting vibration monitoring device in tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323027188.2U CN220982444U (en) | 2023-11-09 | 2023-11-09 | Blasting vibration monitoring device in tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220982444U true CN220982444U (en) | 2024-05-17 |
Family
ID=91036092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323027188.2U Active CN220982444U (en) | 2023-11-09 | 2023-11-09 | Blasting vibration monitoring device in tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220982444U (en) |
-
2023
- 2023-11-09 CN CN202323027188.2U patent/CN220982444U/en active Active
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