CN216746261U - Tunnel water inflow monitoring device - Google Patents
Tunnel water inflow monitoring device Download PDFInfo
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- CN216746261U CN216746261U CN202123432060.5U CN202123432060U CN216746261U CN 216746261 U CN216746261 U CN 216746261U CN 202123432060 U CN202123432060 U CN 202123432060U CN 216746261 U CN216746261 U CN 216746261U
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Abstract
The utility model discloses a tunnel water inflow monitoring device which comprises a tunnel, wherein a water gaging weir groove is arranged at the position of a circular section of the inner side of the tunnel, the water gaging weir groove is hollow and cylindrical, the outer side surface of the water gaging weir groove is an arc surface attached to the inner side surface of the tunnel, an inclined baffle is arranged on one side in front of the water gaging weir groove, a clamp plate is arranged on the other side of the water gaging weir groove at the position symmetrical to the inclined baffle, a movable inclined baffle is embedded into an interlayer of the clamp plate in a sliding mode, the movable inclined baffle is driven by a hydraulic piston cylinder to move below the inner side surface of the water gaging weir groove and form a triangular weir or a trapezoidal weir between the movable inclined baffle and the inclined baffle, and a push-pull plate is fixed at the outer end of a piston rod of the hydraulic piston cylinder. The shape of throttling arrangement can be changed to the water gaging weir groove among the device to adapt to different gushing water volume size, cooperate ultrasonic flowmeter, measure with non-contact method, do not receive gushing the influence of inside impurity of water, monitoring accuracy and reliability are higher.
Description
Technical Field
The utility model relates to the technical field of tunnel safety monitoring equipment, in particular to a tunnel water inflow monitoring device.
Background
The tunnel water burst is a common geological disaster, and the tunnel water burst is widely distributed with tight anticline flexure in the southwest area of China, so that soluble rocks are exposed in a large area. Abundant rainfall promotes the development of surface karst, and concentrated runoff is easy to form underground, so that the water-rich structure is typical. Therefore, in these areas where tunnels are cut in soluble rock, the problem of water inrush is often the major hydrogeological problem that restricts the development of projects. The existing tunnel water inflow amount prediction generally adopts methods such as a hydrogeological analogy method, a water equilibrium method, a nonlinear theoretical method and the like, the method all needs tunnel daily water inflow amount data, because the water inflow overflowing state inside the tunnel is greatly different, the water inflow amount changes along with different seasons and production periods, a water weir groove of the existing fixing cushion section cannot adapt to the constantly changing flow speed and water level (if a triangular weir is small in water flow, the water level changes obviously, but when the water flow is large, the change is too rapid, and when the water flow is small, the water level does not change basically), the reliability of measured data is not high, in addition, the tunnel water inflow amount contains more impurities, and a contact type flowmeter is adopted. The measured data can have deviation and cannot accurately reflect the actual daily water inflow.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tunnel water inflow monitoring device, wherein a water gaging weir groove in the device can change the shape of a throttling device so as to adapt to different water inflow sizes, and the device is matched with an ultrasonic flowmeter to measure in a non-contact way, is not influenced by impurities in water inflow, and has higher monitoring precision and reliability.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a tunnel water inflow monitoring device comprises a tunnel, wherein a water weir groove is arranged at the position of a circular section at the inner side of the tunnel, the water weir groove is hollow and cylindrical, the outer side surface of the water weir groove is a cambered surface attached to the inner side surface of the tunnel, a slant baffle is arranged at one side in front of the water weir groove, a clamp plate is arranged at the other side of the water weir groove at the position symmetrical to the slant baffle, a movable slant baffle is embedded in a clamp plate interlayer in a sliding manner, the movable slant baffle is driven by a hydraulic piston cylinder to move below the inner side surface of the water weir groove and form a triangular weir or a trapezoidal weir with the slant baffle, a push-pull plate is fixed at the outer end of a piston rod of the hydraulic piston cylinder, the push-pull plate passes through a clamp plate surface groove to be connected and fixed on the outer side surface of the movable slant baffle, a hanging rod is arranged above the inner side surface of the water weir groove, and an ultrasonic flowmeter is hung on the hanging rod, the ultrasonic flowmeter is connected with a monitoring probe downwards through a line.
Furthermore, soft waterproof rubber is filled in the gap between the outer side surface of the water gaging weir groove and the tunnel.
Furthermore, the ultrasonic flowmeter is externally connected with a power supply through a circuit, and the hydraulic piston cylinder is externally connected with a power supply and a control panel.
Furthermore, the monitoring probe is positioned above the inner side surface of the water gaging weir groove and used for monitoring water level height data.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the movable oblique baffle structure is arranged, and the hydraulic piston cylinder is matched with the driving hydraulic piston cylinder, so that the shape of the weir groove of the water gaging weir can be changed, wherein the triangular weir is used for adapting to small-flow water gushing, and the trapezoidal weirs with different sizes are used for adapting to large-flow water gushing, so that the water level change is obvious, and the monitoring effect is good; through setting up ultrasonic flowmeter structure, can monitor the water level, not influenced by gushing water internal impurity, monitoring accuracy and reliability are higher.
Drawings
FIG. 1 is a schematic side view of a monitoring device according to the present invention;
FIG. 2 is a schematic view of another side of the monitoring device of the present invention;
in the figure: 1. a tunnel; 2. a water gaging weir groove; 3. an oblique baffle; 4. a splint; 5. moving the inclined baffle; 6. a push-pull plate; 7. a hydraulic piston cylinder; 8. monitoring the probe; 9. an ultrasonic flow meter; 10. a line; 11. a hanging rod.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific figures.
As shown in figures 1 to 2, a tunnel water inflow monitoring device comprises a tunnel 1, a water gaging weir groove 2 is arranged at the position of a circular section at the inner side of the tunnel 1, the water gaging weir groove 2 is hollow and cylindrical, the outer side surface of the water gaging weir groove is a cambered surface attached to the inner side surface of the tunnel 1, a slant baffle 3 is arranged at one side in front of the water gaging weir groove 2, a clamp plate 4 is arranged at the other side of the water gaging weir groove 2 at the position symmetrical to the slant baffle 3, a movable slant baffle 5 is embedded in a sandwich layer of the clamp plate 4 in a sliding manner, the movable slant baffle 5 is driven by a hydraulic piston cylinder 7 to move below the inner side surface of the water gaging weir groove 2 and form a triangular weir or a trapezoidal weir with the slant baffle 3, a push-pull plate 6 is fixed at the outer end of a piston rod of the hydraulic piston cylinder 7, the push-pull plate 6 passes through a surface groove of the clamp plate 4 and is connected and fixed at the outer side surface of the movable slant baffle 5, a hanging rod 11 is arranged above the inner side surface of the water gaging weir groove 2, an ultrasonic flowmeter 9 is hung on the hanging rod 11, ultrasonic flowmeter 9 has monitor 8 through the circuit downwardly connected, and soft waterproof rubber is filled to 2 lateral surfaces of gaging weir groove and 1 clearance position of tunnel, and ultrasonic flowmeter 9 is through 10 external power supplies of circuit, 7 external power supplies of hydraulic piston cylinder and control panel, and monitor 8 is located 2 medial surfaces of gaging weir groove top and is used for monitoring water level height data.
During the in-service use, can be according to 1 water inflow size of tunnel, through 7 work of control panel control hydraulic piston cylinder, push-and-pull removal slant baffle 5, form triangle-shaped weir or trapezoidal weir with slant baffle 3, wherein the triangle-shaped weir is used for the adaptation miniflow to gush water, not unidimensional trapezoidal weir is used for the large-traffic water of gushing of adaptation, through 1 inside water gaging weir groove 2 that sets up in tunnel, because the breach of weir is less than the cross-sectional area of tunnel, therefore, 1 inside water gushing level of tunnel mainly depends on the geometric dimensions of weir groove with the corresponding relation of flow, obtain the high data of water level through monitoring probe 8, different water levels correspond different flows. The water gaging weir groove 2 converts the flow data into water level data, and daily water inflow data can be obtained through calculation, so that the purpose of monitoring is achieved.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a tunnel water inflow monitoring devices, includes the tunnel, its characterized in that: a water weir notch is arranged at the position of the circular section at the inner side of the tunnel, the water weir notch is hollow and cylindrical, the outer side surface of the water weir notch is an arc surface jointed with the inner side surface of the tunnel, an inclined baffle is arranged on one side in front of the weir groove, a clamping plate is arranged on the other side of the weir groove at the position symmetrical to the inclined baffle, a movable oblique baffle is embedded in the interlayer of the clamping plate in a sliding manner, the movable oblique baffle is driven by a hydraulic piston cylinder to move below the inner side surface of the water gaging weir groove and form a triangular weir or a trapezoidal weir with the oblique baffle, the outer end of a piston rod of the hydraulic piston cylinder is fixed with a push-pull plate, the push-pull plate passes through a groove on the surface of the clamping plate and is fixedly connected with the outer side surface of the movable oblique baffle plate, the ultrasonic flow meter is characterized in that a hanging rod is arranged above the inner side surface of the water gaging weir groove, an ultrasonic flow meter is hung on the hanging rod, and the ultrasonic flow meter is connected with a monitoring probe downwards through a line.
2. The tunnel water inflow monitoring device of claim 1, wherein: and soft waterproof rubber is filled in the gap between the outer side surface of the water gaging weir groove and the tunnel.
3. The tunnel water inflow monitoring device of claim 1, wherein: the ultrasonic flowmeter is externally connected with a power supply through a circuit, and the hydraulic piston cylinder is externally connected with a power supply and a control panel.
4. The tunnel water inflow monitoring device of claim 1, wherein: the monitoring probe is positioned above the inner side surface of the water gaging weir groove and is used for monitoring water level height data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432060.5U CN216746261U (en) | 2021-12-31 | 2021-12-31 | Tunnel water inflow monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432060.5U CN216746261U (en) | 2021-12-31 | 2021-12-31 | Tunnel water inflow monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216746261U true CN216746261U (en) | 2022-06-14 |
Family
ID=81909814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123432060.5U Active CN216746261U (en) | 2021-12-31 | 2021-12-31 | Tunnel water inflow monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216746261U (en) |
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2021
- 2021-12-31 CN CN202123432060.5U patent/CN216746261U/en active Active
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