CN211655063U - Tunnel geological radar detection device - Google Patents
Tunnel geological radar detection device Download PDFInfo
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- CN211655063U CN211655063U CN202020399022.0U CN202020399022U CN211655063U CN 211655063 U CN211655063 U CN 211655063U CN 202020399022 U CN202020399022 U CN 202020399022U CN 211655063 U CN211655063 U CN 211655063U
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- geological radar
- radar antenna
- tunnel
- detection device
- waterproof casing
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Abstract
The utility model discloses a tunnel geological radar detection device, including geological radar antenna and waterproof casing, geological radar antenna installs in waterproof casing to be equipped with the recess respectively in waterproof casing's bottom four corners, the double-phase opposite side of recess is equipped with the slot hole, and the slot hole is built-in to be equipped with the pivot, and the pivot facial make-up is equipped with the shock attenuation wheel, and the spring has been installed to the bottom of recess, the terminal intermittent type formula of spring contradict extremely shock attenuation wheel surface. The utility model discloses a tunnel geological radar detection device, through the waterproof casing with the outer parcel of geological radar antenna to the realization is to the waterproof protection of address radar antenna and reduce the wearing and tearing between geological radar antenna and the tunnel surface, meanwhile, through installation damping wheel cooperation spring, can cushion the shake that geological radar antenna produced through two lining seam surfaces, guarantees that geological radar antenna moves fast even stability, reduces the number of times of pausing, guarantees data acquisition's stability and high efficiency.
Description
Technical Field
The utility model relates to a tunnel detecting instrument technical field, more specifically relates to a tunnel geology radar detection device.
Background
Geological radar is a reflection detection technology of underground electromagnetic waves using very high frequency to ultra high frequency bands. The working principle is that the transmitter directionally transmits electromagnetic waves to the primary support and the surrounding rock through the transmitting antenna, the electromagnetic waves are reflected when meeting an interface with electrical property (dielectric constant and conductivity) difference on a transmission path, all reflected waves returning from different depths are received by the receiving antenna and the receiver, and in addition, direct waves transmitted to the receiving antenna from the reflecting antenna through the surface of a medium where the two antennas are located are received firstly and serve as a time starting zero point of a system. After signal processing, half of the time of the transmitted wave reflected by the direct wave at different time is taken, and the transmission speed of the electromagnetic wave of the corresponding medium is multiplied to obtain the depth of the reflection target. And then the properties of the reflecting target are judged according to the characteristics of the reflecting information (reflecting intensity, the combination characteristics of the reflected waves, transverse and longitudinal changes and the like). The primary support and surrounding rock, a cavity or an under-compact area in the surrounding rock, a water-bearing area or a crack in the surrounding rock, a primary support crack and the like are good reflection interfaces or target bodies.
At present, geological radars are mainly adopted to cooperate with antennas with different frequencies (commonly used 270MHz, 400MHz and 900MHz) to detect the structural state of a tunnel, such as the thickness of concrete with two linings and the compactness between the two linings and a primary support, and most antennas are ground coupling antennas, namely, the radar antennas are required to be closely attached to a detected object during detection. However, in the actual use process, due to the fact that the seam of each plate of the secondary lining of the tunnel is uneven, when the geological radar detects sliding, the geological radar antenna tightly attached to the surface of the secondary lining is separated from the surface of the secondary lining, and therefore data abnormity is generated due to pause or contact separation in a time scanning mode.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple structure, tunnel geological radar detection device that survey data accuracy is high to solve the technical problem of the inaccurate efficiency of current geological radar survey data survey.
According to the utility model discloses an aspect provides a tunnel geological radar detection device, including geological radar antenna and waterproof casing, geological radar antenna installs in the waterproof casing, and the bottom four corners of waterproof casing is equipped with the recess respectively, the double-phase opposite side of recess is equipped with the slot hole, the slotted hole is internal to erect the pivot, the pivot facial make-up is equipped with the shock attenuation wheel, and the spring has been installed to the bottom of recess, the terminal intermittent type formula of spring contradicts extremely the shock attenuation wheel surface.
On the basis of the scheme, preferably, the waterproof shell is also provided with a handle.
On the basis of the scheme, the damping wheel is preferably an insulating wheel.
On the basis of the scheme, preferably, the top of the waterproof shell is provided with at least two accommodating grooves, and the accommodating grooves are respectively provided with a transmitting antenna and a receiving antenna.
On the basis of the above scheme, preferably, the long hole is waist-shaped, and the length direction of the long hole is arranged along the length direction of the spring.
The utility model discloses a tunnel geological radar monitoring devices, through the waterproof casing with the outer parcel of geological radar antenna to the realization is to the waterproof protection of address radar antenna and reduce the wearing and tearing between geological radar antenna and the tunnel surface, meanwhile, through installation damping wheel cooperation spring, can cushion the shake that geological radar antenna produced through two lining seam surfaces, guarantees that geological radar antenna moves fast even stability, reduces the number of times of pausing, guarantees data acquisition's stability and high efficiency.
Drawings
FIG. 1 is a perspective view of the tunnel geological radar detection device of the present invention;
fig. 2 is a bottom view of the tunnel geological radar detection device of the utility model;
fig. 3 is a structural diagram of the damping wheel of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, and shown in fig. 2 and fig. 3, the present invention provides a tunnel geological radar detection device, which includes a geological radar antenna and a waterproof casing 10, wherein the geological radar antenna is installed in the waterproof casing 10, and grooves 11 are respectively installed at four corners of the bottom of the waterproof casing 10, two opposite sides of each groove 11 are provided with a slot hole 14, a rotation shaft 15 is erected in each slot hole 14, a damping wheel 13 is installed on each rotation shaft 15, a spring 12 is installed at the bottom of each groove 11, and the ends of the springs 12 intermittently abut against the surface of the damping wheel 13.
The utility model discloses a tunnel geological radar monitoring devices, through waterproof casing 10 with the outer parcel of geological radar antenna to the realization is to the waterproof protection of address radar antenna and reduce the wearing and tearing between geological radar antenna and the tunnel surface, meanwhile, through installation damping wheel 13 cooperation spring 12, can cushion the shake that geological radar antenna produced through two lining seam surfaces, guarantees that geological radar antenna moves fast even stability, reduces the number of times of pausing, guarantees data acquisition's stability and high efficiency.
Further, the utility model discloses still install handle 20 on waterproof casing 10, during the use, can be through handle 20 with control address radar antenna to make things convenient for the workman to control the instrument for a long time, make its use more convenient. Preferably, the handle 20 is an insulated handle 20, and the insulated handle 20 is a double handle.
Preferably, the damping wheel 13 of the present invention is an insulating wheel.
The utility model discloses still be equipped with two at least storage tanks at waterproof casing 10's top, installed transmitting antenna and receiving antenna in the storage tank respectively.
The utility model discloses a slot hole 14 is waist type, and the length direction of slot hole 14 sets up along spring 12's length direction, works as the utility model discloses a when shock attenuation wheel 13 passes through the seam crossing of two linings, because the unevenness of seam crossing leads to spring 12 to shrink, pivot 15 along deviating from the contact surface direction rebound in slot hole 14 to realize its shock attenuation buffering's purpose.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a tunnel geological radar detection device, a serial communication port, including geological radar antenna and waterproof casing, geological radar antenna installs in the waterproof casing, and the bottom four corners of waterproof casing is equipped with the recess respectively, the double-phase offside of recess is equipped with the slot hole, the slot hole is built-up to be equipped with the pivot, the pivot facial make-up is equipped with the shock attenuation wheel, and the spring has been installed to the bottom of recess, the terminal intermittent type formula of spring contradicts extremely shock attenuation wheel surface.
2. A tunneling geological radar detection apparatus, as defined by claim 1, wherein said watertight housing is further provided with a handle.
3. A tunnel geological radar detection apparatus as claimed in claim 1, wherein said shock absorbing wheels are insulated wheels.
4. A tunnel geological radar detection device as claimed in claim 1, wherein the top of said waterproof housing is provided with at least two receiving slots, and said receiving slots are respectively provided with a transmitting antenna and a receiving antenna.
5. A tunnel geological radar detection device as claimed in claim 1, wherein said elongated hole is waist-shaped, and the length direction of said elongated hole is arranged along the length direction of said spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020399022.0U CN211655063U (en) | 2020-03-26 | 2020-03-26 | Tunnel geological radar detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020399022.0U CN211655063U (en) | 2020-03-26 | 2020-03-26 | Tunnel geological radar detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211655063U true CN211655063U (en) | 2020-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020399022.0U Active CN211655063U (en) | 2020-03-26 | 2020-03-26 | Tunnel geological radar detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211655063U (en) |
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2020
- 2020-03-26 CN CN202020399022.0U patent/CN211655063U/en active Active
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