CN210155343U - Protection device of tunnel blasting near-zone vibration meter - Google Patents
Protection device of tunnel blasting near-zone vibration meter Download PDFInfo
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- CN210155343U CN210155343U CN201921165171.4U CN201921165171U CN210155343U CN 210155343 U CN210155343 U CN 210155343U CN 201921165171 U CN201921165171 U CN 201921165171U CN 210155343 U CN210155343 U CN 210155343U
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Abstract
The utility model discloses a protection device of tunnel blasting neighborhood vibrometer belongs to civil engineering technical field. Protection device of tunnel blasting nearzone vibration meter includes: the protective shell comprises a hexahedral protective shell and a fixed base connected to the bottom end of the protective shell, the bottom and one side of the protective shell are of open structures, and a first bolt hole is formed in the fixed base; the sensor fixing device comprises a sensor protection shell, a sensor fixing base and a second bolt hole formed in the sensor fixing base, wherein the sensor protection shell is provided with openings at the bottom and two sides. The utility model discloses a protection that the device can be used for tunnel near zone to survey vibration, and near zone's velocity of vibration decay law research provides effectual protection means.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to protection device of tunnel blasting nearly district vibrometer.
Background
The working principle of the blasting vibration meter is as follows: the blasting vibration generates vibration signals, a special three-way vector sensor of the blasting vibration meter collects the vibration signals generated by blasting, an instrument host analyzes and stores the signals, calculates information such as amplitude and the like generated by the blasting vibration, then leads the data into a computer, and analyzes by using professional analysis software.
By monitoring the blasting vibration, firstly, the characteristics, the propagation rule, the influence on buildings, the failure mechanism and the like of the blasting seismic waves can be known and mastered; secondly, blasting parameters and a construction method can be adjusted in time according to a test result, shockproof measures are made, blasting safety operation is guided, and the damage effect of blasting vibration is avoided or reduced.
The existing theoretical research shows that: the damping law of the vibration velocity (such as the Sudofski formula) obtained after the vibration test data of surrounding rocks in the far blasting area (more than 10m away from the blasting tunnel face) of the tunnel is fitted is not suitable for the near blasting area of the tunnel. And the tunnel near zone vibration velocity tester lacks corresponding protection device, easily causes the damage of vibration meter and the scheduling problem that drops of sensor.
The patent of the Chinese utility model with the application number of 201621207874.5 and the name of the invention of a protection device for a blasting vibration meter discloses a box body for protecting the vibration meter, which is provided with a sliding door for placing the vibration meter, a sensor and a connecting wire therein, and is provided with a bottom hole communicated with the ground. However, this device does not include a fixing device, does not include a sensor fixing device, and is not suitable for use in a tunnel (particularly, at a portion such as a tunnel face and a side wall), and is not suitable for protection of near-field vibration measurement in the tunnel.
Disclosure of Invention
The utility model aims at solving the not enough of prior art, and provide a protection device of tunnel blasting nearside vibration meter, this protection device is applicable to the protection that the tunnel nearside was surveyed and is shaken, provides effectual protection means for the research of the speed of vibration decay law of nearside.
The utility model adopts the following technical scheme:
the invention provides a protection device of a tunnel blasting near-zone vibration meter, which comprises:
the protective shell comprises a hexahedral protective shell and a fixed base connected to the bottom end of the protective shell, the bottom and one side of the protective shell are of open structures, and a first bolt hole is formed in the fixed base;
the sensor fixing device comprises a sensor protection shell, a sensor fixing base and a second bolt hole formed in the sensor fixing base, wherein the sensor protection shell is provided with openings at the bottom and two sides.
In some embodiments, the protective housing is a hexahedral structure.
In some embodiments, the bottom ends of the four side surfaces of the protective casing are provided with fixing bases, and the fixing bases are perpendicular to the side surfaces of the protective casing.
In some embodiments, the fixing base fixes the protection device by bolts.
In some embodiments, the sensor protection casing has a hexahedral structure, and the bottom surface and the two opposite side surfaces are open.
In some embodiments, the bottom ends of the two sides of the sensor protection housing, which are not opened, are respectively connected to the sensor fixing base 5, and are perpendicular to the side surface of the sensor protection housing.
In some embodiments, the sensor fixing base is fixed to the sensor fixing base by bolts.
In some embodiments, each of the fixing bases has two first bolt holes, and each of the sensor fixing bases has two second bolt holes.
In some embodiments, the outer surface of the protective shell is provided with a reflective strip.
Compared with the prior art, the beneficial effects of the utility model are that:
the device of the utility model can be used for the protection of tunnel near zone vibration measurement, and the research of near zone vibration velocity attenuation law provides an effective protection means, thus solving the problem that the near zone vibration measurement in the tunnel lacks a protection device; the problem that the existing protection device is not suitable for the vibration measurement in the near region of the tunnel is solved.
Drawings
Fig. 1 is a schematic structural view of the protective casing of the present invention;
fig. 2 is a schematic structural view of the sensor fixing device of the present invention;
FIG. 3 is a schematic view of the sensor protection device and the instrument installation of the present invention;
FIG. 4 is a top view of the overall protection device of the present invention;
fig. 5 is an installation front view of the integral protection device of the present invention;
fig. 6 is the overall installation effect diagram of the protection device of the present invention.
Reference numerals: 1. a protective shell 2 and a fixed base; 3. a first bolt hole; 4. a sensor protective housing; 5. a sensor fixing base; 6. a second bolt hole; 8. a sensor fixing device; 9. a sensor; 10. a connecting wire; 11. a vibration meter.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined. The utility model discloses well parts that use like inclination sensor are current product, can purchase and obtain.
The invention provides a protection device of a tunnel blasting near-zone vibration meter, which comprises:
the protective shell comprises a hexahedral protective shell 1 and a fixed base 2 connected to the bottom end of the protective shell 1, the bottom and one side of the protective shell 1 are of an open structure, and a first bolt hole 3 is formed in the fixed base 2;
In one embodiment, the protective housing 1 has a hexahedral structure.
In one embodiment, the bottom ends of the four side surfaces of the protective casing 1 are provided with the fixing bases 2, and the fixing bases 2 are perpendicular to the side surfaces of the protective casing 1.
In one embodiment, the fixing base 2 fixes the protection device by bolts.
In one embodiment, the sensor protection housing 4 has a hexahedral structure, and a bottom surface and two opposite side surfaces are open.
In one embodiment, the bottom ends of the two sides, which are not opened, of the sensor protection casing 4 are respectively connected to the sensor fixing base 5, and are perpendicular to the side surface of the sensor protection casing 4.
In one embodiment, the sensor fixing base 5 fixes the sensor fixing base 5 by bolts.
In one embodiment, each of the fixing bases 2 defines two first bolt holes 3, and each of the sensor fixing bases 5 defines two second bolt holes 6.
In one embodiment, the outer surface of the protective housing 1 is provided with reflective stripes.
The invention is further illustrated by the following example.
Examples
The protection device of the tunnel blasting near-zone vibration meter shown in fig. 1 to 2 comprises:
the protective housing comprises a hexahedral protective housing 1 and fixed bases 2 connected to the bottom end of the protective housing 1, the protective housing 1 is of a hexahedral structure, the bottom and one side of the protective housing are of an open structure, first bolt holes 3 are formed in the fixed bases 2, each fixed base 2 is provided with two first bolt holes 3, the fixed bases 2 are arranged at the bottom ends of four side surfaces of the protective housing 1, the fixed bases 2 are perpendicular to the side surfaces of the protective housing 1, and the fixed bases 2 fix the protective device through bolts; the bottom surface and the side surface are of an opening structure, the bottom surface opening aims to facilitate installation of a sensor, the side surface opening facilitates reading and placement of a vibration meter, and the side surface opening is adjusted according to the direction of a blasting face.
The sensor fixing device is installed as shown in fig. 3, the sensor 9 is adhered to the side wall or the tunnel face of the tunnel by gypsum powder or other adhesives, the sensor fixing device 8 is installed by using the second bolt hole 6, and then the connecting wire 10 is connected with the vibration meter 11.
Fig. 6 shows the overall installation effect of the protection device, and after the sensor fixing device is completely installed, the overall protection housing 1 is installed by using the first bolt hole 3.
When the utility model is applied specifically, the outer surface of the protective shell 1 can be provided with the reflective strips, which is convenient for effective identification under the condition of poor lighting condition in the tunnel; also can be at the bottom installation buffer spacer of protection device and wall contact, like the rubber gasket, waterproof dustproof better, effectively protect the vibration meter.
In order to protect the vibration meter better and prevent the vibration meter from falling from the protection device when being impacted, a baffle plate can be arranged on one side of the opening of the protection shell 1.
Although the embodiments of the present invention have been described in detail in the above examples, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (9)
1. Protection device of tunnel blasting nearzone vibration meter, its characterized in that includes:
the protective shell comprises a hexahedral protective shell (1) and a fixed base (2) connected to the bottom end of the protective shell (1), the bottom and one side of the protective shell (1) are of an open structure, and a first bolt hole (3) is formed in the fixed base (2);
sensor fixing device (8), this sensor fixing device (8) include sensor protecting sheathing (4), sensor unable adjustment base (5) and set up in second bolt hole (6) on sensor unable adjustment base (5), bottom and both sides portion opening that sensor protecting sheathing (4) were.
2. The protection device of the tunnel blasting near-zone vibration meter according to claim 1, characterized in that the protective casing (1) is of a hexahedral structure.
3. The protection device of the tunnel blasting near-zone vibration meter according to claim 2, characterized in that the bottom ends of four sides of the protective casing (1) are provided with fixing bases (2), and the fixing bases (2) are perpendicular to the sides of the protective casing (1).
4. The protection device of the tunnel blasting near zone vibration meter according to claim 1, characterized in that the fixing base (2) fixes the protection device through bolts.
5. The protection device of the tunnel blasting near zone vibration meter according to claim 1, characterized in that the sensor protection shell (4) is of a hexahedral structure, and the bottom surface and the two opposite side surfaces are open.
6. The protection device of the tunnel blasting near-zone vibration meter according to claim 5, wherein the bottom ends of the two unopened sides of the sensor protection shell (4) are respectively connected with the sensor fixing base (5) and are perpendicular to the side surface of the sensor protection shell (4).
7. The protection device of the tunnel blasting near zone vibration meter according to claim 1, characterized in that the sensor fixing base (5) is fixed to the sensor fixing base (5) by bolts.
8. The protection device of the tunnel blasting near zone vibration meter according to any one of the claims 3 or 6, wherein each fixing base (2) is provided with two first bolt holes (3), and each sensor fixing base (5) is provided with two second bolt holes (6).
9. The protection device of the tunnel blasting near-zone vibration meter according to claim 1, characterized in that the outer surface of the protective shell (1) is provided with a reflective strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165171.4U CN210155343U (en) | 2019-07-23 | 2019-07-23 | Protection device of tunnel blasting near-zone vibration meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165171.4U CN210155343U (en) | 2019-07-23 | 2019-07-23 | Protection device of tunnel blasting near-zone vibration meter |
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| Publication Number | Publication Date |
|---|---|
| CN210155343U true CN210155343U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921165171.4U Active CN210155343U (en) | 2019-07-23 | 2019-07-23 | Protection device of tunnel blasting near-zone vibration meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143856A (en) * | 2022-08-11 | 2022-10-04 | 北京市政路桥股份有限公司 | Vibration damping column and novel blasting vibration protection device thereof |
-
2019
- 2019-07-23 CN CN201921165171.4U patent/CN210155343U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143856A (en) * | 2022-08-11 | 2022-10-04 | 北京市政路桥股份有限公司 | Vibration damping column and novel blasting vibration protection device thereof |
| CN115143856B (en) * | 2022-08-11 | 2024-04-02 | 北京市政路桥股份有限公司 | Vibration-resistant column and blasting vibration protection device thereof |
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