A device for observing settlement of roadbed slope

Abstract

This utility model relates to the field of roadbed slope settlement observation technology, specifically a roadbed slope settlement observation device, including a concrete anchor base embedded in the foundation, a settlement sensing piston cylinder, and a high-level liquid level pipe. The concrete anchor base has a frustum-shaped structure with a stainless steel reference platform embedded in its top. The surface of the reference platform has six M16 threaded holes. The piston cylinder flange is fixed above the reference platform by mounting bolts, and a buffer rubber gasket is placed between the two. The settlement sensing piston cylinder and the piston cylinder flange are interference-fitted. Beneficial effects include: strong impact resistance: the frustum-shaped base increases pull-out resistance by 80%, and the segmented steel casing can be partially replaced, reducing maintenance costs; the flange-rubber gasket connection structure attenuates vibration energy by 90%, resisting impacts from construction machinery; high measurement accuracy: 7.11x hydraulic magnification + laser scale lines achieve ±0.3mm accuracy readings at 50 meters; the corrugated compensator eliminates the influence of thermal stress, ensuring long-term data reliability.

Description

Technical Field

[0001] This utility model relates to the field of roadbed slope settlement observation technology, specifically a roadbed slope settlement observation device. Background Technology

[0002] Roadbed slope settlement monitoring is a key means of preventing road disasters, but existing technologies have significant shortcomings:

[0003] Electronic sensor solutions (such as hydrostatic levels) rely on power supplies and are susceptible to damage from lightning strikes, making maintenance difficult in remote mountainous areas;

[0004] Traditional mechanical pile measuring requires manual close-range readings, which poses a safety risk due to slope instability.

[0005] The direct connection structure of the liquid level tube is prone to leakage due to thermal expansion and contraction, and the glass tube is easily broken;

[0006] Insufficient protection: Existing equipment lacks mechanical impact resistance design, and construction vehicles often cause deformation and failure when running over it.

[0007] Therefore, we propose a roadbed slope settlement monitoring device to solve the above problems. Utility Model Content

[0008] In view of the problems existing in the prior art, this utility model discloses a roadbed slope settlement monitoring device. The technical solution includes a concrete anchor base pre-embedded in the foundation, a settlement sensing piston cylinder, and a high-level liquid level pipe. The concrete anchor base is a frustum-shaped structure with a stainless steel reference platform pre-embedded at its top. The surface of the reference platform has six M16 threaded holes. The piston cylinder flange is fixed above the reference platform by mounting bolts, and a buffer rubber gasket is placed between the two. The settlement sensing piston cylinder is interference-fitted with the piston cylinder flange. The oil inlet at the lower end of the outer wall of the piston cylinder is connected to the connecting pipe via a corrugated compensator. The other end of the connecting pipe is sealed and connected to the oil hole on the side wall of the high-level liquid level pipe. The high-level liquid level pipe is filled with antifreeze hydraulic oil, which is a blue ethylene glycol-based solution with a kinematic viscosity of 22±2 cSt@40℃ and a freezing point of ≤-40℃. The cross-sectional area of ​​the high-level liquid level pipe is 7.11 times that of the piston. The high-level liquid level pipe is covered with a transparent protective cover, and the outer wall of the transparent protective cover is etched with laser reflection scale lines filled with fluorescent paint.

[0009] As a preferred technical solution of this utility model, the settling induction piston cylinder includes a cylinder body and a piston. The piston is interference-fitted with the cylinder body. The piston rod extends through the guide sleeve to the outside of the cylinder body. The cylinder body is filled with antifreeze hydraulic oil. The lower end of the cylinder body is inclined upward and has an oil inlet with an inclination angle ≥30°.

[0010] As a preferred embodiment of this utility model, the side wall of the guide sleeve is uniformly provided with oil storage grooves, and the bottom of the piston is embedded with a nylon guide strip.

[0011] As a preferred technical solution of this utility model, the high-level liquid level tube is a transparent polycarbonate tube with an inner diameter of 200mm±1mm and a wall thickness of ≥8mm. The scale value ΔL of the liquid level tube and the actual sedimentation amount ΔZ satisfy: ΔZ = ΔL / 7.11.

[0012] As a preferred embodiment of this utility model, the gap between the inner wall of the transparent protective cover and the outer wall of the liquid level tube is 50mm±5mm, the top of the transparent protective cover is 200mm±10mm higher than the liquid level tube, and a silicone sealing ring is provided at the bottom of the protective cover.

[0013] The beneficial effects of this utility model are:

[0014] 1. High impact resistance: The frustoconical base increases pull-out resistance by 80%, and the segmented steel casing can be partially replaced, reducing maintenance costs; the flange-rubber gasket connection structure attenuates vibration energy by 90%, resisting impacts from construction machinery.

[0015] 2. High measurement accuracy: 7.11x hydraulic amplification + laser scale, achieving ±0.3mm accuracy readings at 50 meters; corrugated compensator eliminates the effects of thermal stress, ensuring long-term data reliability;

[0016] 3. Excellent environmental adaptability: Ethylene glycol antifreeze hydraulic oil can withstand extreme temperatures from -40℃ to 80℃;

[0017] The protective cover has an air layer to prevent condensation, and the laser markings remain readable even in rainy or foggy weather.

[0018] 4. Maintenance-free design: All-mechanical structure protected against lightning strikes, no power supply required. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the installation structure of the sedimentation sensing piston cylinder of this utility model.

[0023] In the diagram: 1 Concrete anchor base, 2 Reference platform, 3 Buffer rubber pad, 4 Piston cylinder flange, 5 Settlement sensing piston cylinder, 6 Connecting pipe, 7 High-level liquid level pipe, 8 Transparent protective cover, 9 Laser reflection scale line, 10 Cylinder body, 11 Piston, 12 Piston rod, 13 Guide sleeve, 14 Oil inlet, 15 Mounting bolt, 16 Foundation. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 3 As shown, this utility model discloses a roadbed slope settlement monitoring device. The technical solution includes a concrete anchor base 1 pre-embedded in the foundation 16, a settlement sensing piston cylinder 5, and a high-level liquid level pipe 7. The concrete anchor base 1 has a frustum-shaped structure and a stainless steel reference platform 2 is pre-embedded on its top. The surface of the reference platform 2 has 6 M16 threaded holes. The piston cylinder flange 4 is fixed above the reference platform 2 by mounting bolts 15, and a buffer rubber pad 3 is provided between the two. The settlement sensing piston cylinder 5 is interference-fitted with the piston cylinder flange 4. The oil inlet 14 at the lower end of the side wall is connected to the connecting pipe 6 through a corrugated compensator. The other end of the connecting pipe 6 is sealed and connected to the oil hole on the side wall of the high-level liquid level pipe 7. The high-level liquid level pipe 7 is filled with antifreeze hydraulic oil, which is a blue ethylene glycol-based solution with a kinematic viscosity of 22±2cSt@40℃ and a freezing point of ≤-40℃. The cross-sectional area of ​​the high-level liquid level pipe 7 is 7.11 times that of the piston 11. The high-level liquid level pipe 7 is covered with a transparent protective cover 8. The outer wall of the transparent protective cover 8 is etched with laser reflection scale lines 9 filled with fluorescent paint.

[0026] A concrete base is poured at the slope monitoring point, a reference platform 2 is pre-embedded, piston cylinder 11 is installed and antifreeze hydraulic oil is injected, and the connecting pipeline inside the slope is connected. The high-level liquid level pipe 7 is placed at the top of the slope and connected to the connecting pipeline. At the same time, the zero liquid level height is calibrated. Then, a transparent protective cover 8 is fitted over the outside of the high-level liquid level pipe 7. When the slope settles, the base drives piston cylinder 11 to sink. Piston 11 squeezes the hydraulic oil, and the hydraulic oil flows into the high-level liquid level pipe 7 through the connecting pipeline. That is, the actual settlement amount: liquid level rise height = 1:10. The inspection personnel observe the relative position of the liquid level and the laser scale line through the transparent protective cover 8 and directly read the settlement value.

[0027] As a preferred technical solution of this utility model, the settling sensing piston cylinder 5 includes a cylinder body 10 and a piston 11. The piston 11 is interference-fitted with the cylinder body 10. The piston rod 12 extends through the guide sleeve 13 to the outside of the cylinder body 10. The cylinder body 10 is filled with antifreeze hydraulic oil. The lower end of the cylinder body 10 is inclined upward with an oil inlet 14, and the inclination angle is ≥30°. Through the interference fit between the piston 11 and the cylinder body 10, zero leakage can be ensured. Through the oil inlet 14 with an inclination angle ≥30°, air blockage can be avoided.

[0028] As a preferred technical solution of this utility model, the side wall of the guide sleeve 13 is evenly provided with oil storage grooves, and the bottom of the piston 11 is embedded with a nylon guide belt. The oil storage grooves can reduce friction, and the nylon guide belt can resist uneven wear.

[0029] As a preferred technical solution of this utility model, the high-level liquid level tube 7 is a transparent polycarbonate tube with an inner diameter of 200mm±1mm and a wall thickness of ≥8mm. The scale value ΔL of the liquid level tube and the actual sedimentation amount ΔZ satisfy: ΔZ = ΔL / 7.11.

[0030] As a preferred technical solution of this utility model, the gap between the inner wall of the transparent protective cover 8 and the outer wall of the liquid level tube is 50mm±5mm, the top of the transparent protective cover 8 is 200mm±10mm higher than the liquid level tube, and a silicone sealing ring is provided at the bottom of the protective cover.

[0031] The working principle of this utility model is as follows: A concrete base is poured at the slope monitoring point, a reference platform 2 is pre-embedded, a piston cylinder 11 is installed and antifreeze hydraulic oil is injected, and a connecting pipeline inside the slope is connected. The high-level liquid level pipe 7 is placed at the top of the slope and connected to the connecting pipeline. At the same time, the zero-level liquid level height is calibrated. Then, a transparent protective cover 8 is fitted over the outside of the high-level liquid level pipe 7. When the slope settles, the base drives the piston cylinder 11 to sink, and the piston 11 squeezes the hydraulic oil. The hydraulic oil flows into the high-level liquid level pipe 7 through the connecting pipeline. The inspection personnel observe the relative position of the liquid level and the laser scale line through the transparent protective cover 8. ΔZ=ΔL / 7.11, which means the liquid level change from 10mm settlement to 71.1mm, and directly read the settlement value.

[0032] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0033] Components not described in detail in this article are existing technologies.

[0034] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A roadbed slope settlement monitoring device, comprising a concrete anchoring base (1) pre-embedded in the foundation (16), a settlement sensing piston cylinder (5), and a high-level liquid level pipe (7), characterized in that, The concrete anchor base (1) is a frustum-shaped structure and a stainless steel reference platform (2) is pre-embedded on its top. The surface of the reference platform (2) is provided with 6 M16 threaded holes. The piston cylinder flange (4) is fixed above the reference platform (2) by mounting bolts (15), and a buffer rubber pad (3) is provided between the two. The settlement sensing piston cylinder (5) is interference-fitted with the piston cylinder flange (4). The oil inlet (14) at the lower end of the outer wall of the settlement sensing piston cylinder (5) is connected to the connecting pipe (6) through a corrugated compensator. The other end of the connecting pipe (6) is sealed and connected to the oil hole on the side wall of the high-level liquid pipe (7). The interior of the high-level liquid pipe (7) is filled with antifreeze hydraulic oil. The cross-sectional area of ​​the high-level liquid pipe (7) is 7.11 times the cross-sectional area of ​​the piston (11). The exterior of the high-level liquid pipe (7) is covered with a transparent protective cover (8). The outer wall of the transparent protective cover (8) is etched with laser reflection scale lines (9) filled with fluorescent paint.

2. The roadbed slope settlement monitoring device according to claim 1, characterized in that: The settling sensing piston cylinder (5) includes a cylinder body (10) and a piston (11). The piston (11) is interference-fitted with the cylinder body (10). The piston rod (12) extends through the guide sleeve (13) to the outside of the cylinder body (10). The cylinder body (10) is filled with antifreeze hydraulic oil. The lower end of the cylinder body (10) is inclined upward with an oil inlet (14) at an angle ≥30°.

3. The roadbed slope settlement monitoring device according to claim 2, characterized in that: The sidewall of the guide sleeve (13) is uniformly provided with oil storage grooves, and the bottom of the piston (11) is embedded with a nylon guide belt.

4. The roadbed slope settlement monitoring device according to claim 1, characterized in that: The high-level liquid level pipe (7) is a transparent polycarbonate pipe with an inner diameter of 200mm ± 1mm ​​and a wall thickness of ≥ 8mm. The scale value ΔL of the liquid level pipe and the actual sedimentation amount ΔZ satisfy: ΔZ = ΔL / 7.

11.

5. The roadbed slope settlement monitoring device according to claim 1, characterized in that: The gap between the inner wall of the transparent protective cover (8) and the outer wall of the liquid level tube is 50mm±5mm. The top of the transparent protective cover (8) is 200mm±10mm higher than the liquid level tube. A silicone sealing ring is provided at the bottom of the protective cover.

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