A displacement tension sensing device applied to slope collapse monitoring string pile

Abstract

The utility model discloses a kind of applied in side slope collapse monitoring string pile displacement tension sensing device, including main pile, and the monitoring component tension sensor of main pile is integrated, tail pile and the multiple groups of middle piles being set between the two, by a monitoring rope string connection integrated into the base body of monitoring device, in the installation scene of side slope on highway two sides mountain and subgrade surface lower side slope, various terrains can be maximized to meet, various concave-convex, slope and the slope surface of the size of area inequality, the present technology is combined by tail pile tension spring and tension adjusting screw rod, and monitoring rope and main pile tension sensor form set tension, when slope surface activity causes the deviation of any one pile body, it will inevitably change the tension value set by monitoring rope which is previously tensioned, quickly respond by monitoring component and accurately monitor data, the greater the slope surface activity range is, the greater the tension value variable is, the present application has the advantages of monitoring wide slope surface, high sensitivity and accurate data, strong durability and low implementation cost.

Description

Technical Field

[0001] This utility model relates to the field of early warning slope monitoring devices for the upper slopes and lower slopes of highways, and in particular to a displacement tension sensing device for monitoring slope collapse using a series of piles. Background Technology

[0002] Currently, many technologies and methods are applied to slope safety monitoring both domestically and internationally, mainly including macro-geological observation, station-based observation, instrumental observation, and remote monitoring. Through these methods, we primarily obtain feedback on slope deformation mechanisms, geological disaster prevention and control effects, and thus predict potential damage to slope engineering projects, providing a basis for disaster prevention and mitigation.

[0003] my country is one of the countries most severely affected by geological disasters in the world. With the development of my country's social economy, especially the gradual shift of highway construction from plains to mountainous areas, the complex natural geological conditions, varied climate, and natural factors, along with human activities (highway construction), have disrupted the original slope balance. This can lead to geological disasters such as landslides, mudslides, debris flows, and roadbed subsidence on both the upper and lower slopes (mountain slopes on both sides of the highway) and the lower slopes (sloping roadbed surfaces), significantly impacting social life and economic development. Existing slope safety monitoring technologies, such as the high slope surface deformation monitoring and early warning system and method disclosed in Chinese invention patent number 201810026811.7, include a system reference point system used as a reference system for high slope surface deformation; a deformation monitoring system used to monitor the surface deformation of the high slope at various measurement points, collect real-time deformation monitoring data, and send the real-time deformation monitoring data to a data acquisition and transmission system; and a data acquisition and transmission system. The technical solution is quite complex, requiring close monitoring, processing, and ensuring smooth transmission of data between various systems. In extreme weather conditions, the equipment is susceptible to damage, leading to data loss, compromised monitoring accuracy, and high implementation costs. Utility Model Content

[0004] The purpose of this invention is to provide a displacement tension sensing device for monitoring pile displacement in slope collapse, addressing the problems of complex technical solutions in existing technologies, requiring close monitoring, processing, and ensuring smooth transmission of data between various systems. Furthermore, these solutions are susceptible to damage in extreme weather, leading to data loss, compromised monitoring accuracy, and high implementation costs.

[0005] The technical solution of this utility model is: a displacement tension sensing device for monitoring slope collapse using a series of piles, including a main pile, wherein a monitoring pipe is formed in the inner side of the main pile, and a monitoring component is provided at the upper end of the inner side of the monitoring pipe;

[0006] The tail pile is connected to the main pile by multiple sets of interconnected piles via monitoring ropes.

[0007] The monitoring component includes an S-shaped tension sensor, a fixed-end fastener, and a tension-end pull ring bolt. The S-shaped tension sensor is installed inside the monitoring pipe, with one end connected to the side wall of the monitoring pipe via the fixed-end fastener, and the other end fixedly connected to the tension-end pull ring bolt. The tension-end pull ring bolt is connected to the monitoring rope, and the two are fixedly connected by a monitoring rope clamp.

[0008] Furthermore, the monitoring component also includes a high-precision strain gauge group and a wireless terminal device. The high-precision strain gauge group is disposed on the S-shaped tensile sensor and is interconnected with the wireless terminal device to realize the transmission of monitoring data.

[0009] Furthermore, the upper end of the tail pile is provided with a tension adjusting screw, one end of which is provided with a tension spring. The monitoring rope and the tension spring are connected and cooperate with each other to form an adjusting end for setting the deployment tension.

[0010] Furthermore, a crimped cold-pressed terminal is provided between the monitoring rope and the tension spring.

[0011] Furthermore, the upper end of the string of piles is provided with a left and right through hole at its center, and a wire eye is provided inside the through hole.

[0012] Furthermore, the main pile, multiple tandem piles, and tail piles are arranged in a straight line.

[0013] Furthermore, the main pile, multiple tandem piles, and tail piles are arranged in a zigzag or arc-shaped pattern.

[0014] The advantages of this utility model compared with the prior art are as follows: The monitoring device's base is constructed by connecting the main pile and tail pile, along with multiple sets of intermediate piles between them, via monitoring ropes. In actual installation scenarios on the upper and lower slopes (mountain slopes on both sides of the highway) and the lower slopes (roadbed slopes), it can maximize the suitability for various terrains, uneven slopes, slope gradients, and slopes of various sizes, making it widely applicable. This technology uses an S-shaped tension sensor installed inside the monitoring pipe on the main pile to receive signals from the main pile, intermediate piles, and tail piles connected in series via monitoring ropes. A combination of tension springs and tension adjusting screws creates a set tension between the monitoring rope and the S-shaped tension sensor. Any deviation of any pile due to slope movement will inevitably change the tension value set on the pre-tensioned monitoring rope. The monitoring components respond quickly and monitor the data accurately. The larger the range of slope movement, the greater the change in tension value; the two are directly proportional. This invention has significant advantages such as wide monitoring range, high monitoring sensitivity and accurate data, strong durability and low implementation cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 A schematic diagram showing the main pile, multiple cascade piles, and tail pile of this utility model arranged in a straight line for defense.

[0018] Figure 4 A schematic diagram showing the main pile, multiple cascade piles, and tail pile of this utility model arranged in a zigzag line for defense;

[0019] Figure 5 The main pile, multiple intermediate piles, and tail piles of this utility model are installed on the upper slope and under the roadbed surface of the highway.

[0020] Schematic diagrams of straight line combinations, arc combinations, and zigzag line combinations of slopes.

[0021] In the diagram, 901 - highway; 902 - arc-shaped installation of piles; 903 - upper slope of the roadside; 904 - straight installation of piles; 905 - zigzag installation of piles; 906 - lower slope of the roadbed. Detailed Implementation

[0022] 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.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] See Figure 1-5 In this utility model, a displacement tension sensing device for monitoring slope collapse using a series of piles includes a main pile 4, with a monitoring pipe 40 formed by a hollow inner side of the main pile 4. A monitoring component A is provided at the upper end of the inner side of the monitoring pipe. A tail pile 14 is provided, and multiple sets of series piles 10 are provided between the tail pile 14 and the main pile 4, and are connected in series by a monitoring rope 8. The monitoring component includes an S-shaped tension sensor 1, a fixed end fastener 3, a tension end pull ring bolt 7, and a monitoring rope clamp 9. The S-shaped tension sensor is set inside the monitoring pipe, with one end connected to the side wall of the monitoring pipe by the fixed end fastener 3, and the other end connected to the tension end pull ring bolt 7. The tension end pull ring bolt 7 is connected and cooperates with the monitoring rope 8, and the two are fixedly connected by the monitoring rope clamp 9. The tension sensor 1 used is an S-type tension sensor 1, with a fixed end 2 and a tension end 5 at both ends. The fixed end 2 of the S-type tension sensor 1 is fixed to the inner side of the main pile 4 by a fixed end fastener 3, forming a hollow monitoring pipe 40 at a suitable height. The inner diameter of the monitoring pipe 40 is larger than the outer diameter of the S-type tension sensor 1, which facilitates the fixing of the S-type tension sensor 1 inside the monitoring pipe 40 and provides sufficient stretching space when the tension is at its maximum. At the same time, a connection hole 6 is provided on the inner side wall of the monitoring pipe 40. The tension end 5 of the S-type tension sensor 1 is connected to the pipe wall through the connection hole 6, so that the tension end pull ring bolt 7 fixed on the tension end 5 of the S-type tension sensor 1 can be suspended and extended through the connection hole 6 on the monitoring pipe 40. Then, one end of the monitoring rope 8 is passed through the tension end pull ring bolt 7 and then fixed by the monitoring rope clamp 9.

[0026] Of course, in actual production and manufacturing, the monitoring rope 8 can be made of soft stainless steel rope, the pile 10 has a hollow tube 100 inside, and the tail pile 14 also has a hollow tube 104 inside, so that the main pile 4, the piles 10, and the tail pile 14 are all hollow uprights. A crimped cold-pressed terminal 11 is provided between the monitoring rope 8 and the tension spring 12, and a tension adjusting screw 13 is provided at the upper end of the tail pile 14. One end of the tension adjusting screw 13 is provided with a tension spring 12. The monitoring rope 8 and the tension spring 12 are connected and cooperate with each other to form an adjustment end for setting the deployment tension. Furthermore, after passing through several external bollards 10, the other end is connected to the cold-pressed terminal block 11, which connects to the tension spring 12 and the tension adjusting screw 13, and is fixed to the tail bollard 14. The entire series of displacement tension sensing devices aims to obtain the optimal tension as a reference value for the deployment tension. The first step involves tightening the soft stainless steel rope 8 using the monitoring rope clamp 9, so that the tension spring 12 is in a stretched state, and then securing the monitoring rope clamp 9. The second step involves adjusting the tension adjusting screw 13 to connect the tension end 5 of the S-shaped tension sensor 1 in the built-in monitoring pipe 40 to the tail bollard. The stainless steel rope 8 between the piles 14 forms a set tension deployment value. This value is the deployment tension value under the stable conditions of the slope where the main pile 4, several cascade piles 10, and tail pile 14 of the serial displacement tension sensing device are installed. It is hereinafter referred to as the reference value 15. The reference value 15 is obtained by the high-precision strain gauge group 16 set in the S-type tension sensor 1 based on the stress change of the S-type tension sensor 1 caused by the current deployment tension value. The output unit of the reference value 15 is usually kilograms (kg) or Newton-meters (N·m).

[0027] Specifically, the upper end of the cascade pile 10 is provided with a left and right through hole at its center, and a wire ceramic eye 17 is provided inside the through hole. When the cascade displacement tension sensing device is installed on the slope, according to the slope topography, geological structure, geological composition, rainwater flow trajectory, etc., the main pile 4, several cascade piles 10, and tail piles 14 are respectively implanted at the points where debris flow, landslide, and collapse are likely to occur, forming a straight line, arc, or curve distribution. In order to improve the sensitivity of the cascade displacement tension sensing device, the roots of the main pile 4, several middle piles 10, and tail piles 14 must be reinforced with pull-out foundations. In the event of slope displacement and collapse, they can effectively drive and drag each monitoring pile. In order to ensure that the soft stainless steel rope 8 that is pierced by several middle piles 10 can move smoothly and with low friction in the hollow tube through hole of the middle pile 10 when the middle pile 10 is displaced or tilted, the wire ceramic eye 17 is installed in the hollow tube through hole of the middle pile 10.

[0028] Specifically, the main pile 4, multiple middle piles 10, and tail pile 14 are arranged in a straight line or arc along the longitudinal plane of the slope in the direction where displacement and collapse are likely to occur. If the movement of the mountain slope where any one of the middle piles 10 is located causes the pile series to sway or tilt, its tension value will inevitably increase. Thus, the tension value is greater than the benchmark value of 15. The larger the range of slope movement, the greater the tension value and the greater the tensile force variable. The two are directly proportional.

[0029] Specifically, the main pile 4, multiple intermediate piles 10, and tail pile 14 are installed on the slope in a zigzag pattern. If any of the intermediate piles 10 is located on the slope and its movement causes the pile series to sway or tilt, the tension value will increase or decrease accordingly. Generally, the tension value fed back by the movement of the intermediate pile 10 on the upper zigzag pattern will decrease, while the tension value fed back by the movement of the intermediate pile 10 on the lower zigzag pattern will increase. Therefore, the tension value will be greater than or less than the reference value of 15. The larger the range of slope movement, the greater the tension variable, and the two are directly proportional. In use, the pile series is installed according to the slope design requirements, such as... Figure 5 In the middle, it can be a straight line, an arc, a bend, or other layout structures.

[0030] If a large-scale landslide causes the main pile, multiple tandem piles, and tail piles to move simultaneously, the reinforcement tension value will change in multiple ways, including increasing or decreasing the reinforcement tension value and the reinforcement tension value failing. This results in multiple states where the reinforcement tension value is >15, <15, or ≒0. It can also reflect different risk levels of landslides. All changes in the reinforcement tension value are ultimately reflected in the output of the high-precision strain gauge group 16 in the S-type tension sensor 1, which is connected to the wireless terminal (4G LTE DTU) device 18 for data conversion and transmission and provides real-time early warning to the highway network center 19.

[0031] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A device for sensing the displacement tension of a series of piles used in slope collapse monitoring, characterized in that, include: The main pile (4) has a hollow inner side forming a monitoring pipe (40), and a monitoring component (A) is provided at the upper end of the inner side of the monitoring pipe. Tail pile (14), and multiple sets of string piles (10) are provided between the tail pile (14) and the main pile (4), and are connected in series by monitoring rope (8); The monitoring component (A) includes an S-type tension sensor (1), a fixed end fastener (3), and a tension end pull ring bolt (7). The S-type tension sensor is located inside the monitoring pipe. One end is connected to the side wall of the monitoring pipe through the fixed end fastener (3), and the other end is fixedly connected to the tension end pull ring bolt (7). The tension end pull ring bolt (7) is connected to the monitoring rope (8), and the two are fixedly connected through the monitoring rope clamp (9).

2. The displacement tension sensing device for slope collapse monitoring using a series of piles as described in claim 1, characterized in that, The monitoring component also includes a high-precision strain gauge group (16) and a wireless terminal device (18). The high-precision strain gauge group (16) is disposed on the S-shaped tensile sensor (1) and is interconnected with the wireless terminal device (18).

3. A displacement tension sensing device for monitoring slope collapse using piles, as described in claim 1 or 2, characterized in that... The upper end of the tail pile (14) is provided with a tension adjustment screw (13), and one end of the tension adjustment screw (13) is provided with a tension spring (12). The monitoring rope (8) and the tension spring (12) are connected to each other to form an adjustment end for setting the deployment tension.

4. The displacement tension sensing device for monitoring slope collapse using a series of piles as described in claim 3, characterized in that, A crimped cold-pressed terminal (11) is provided between the monitoring rope (8) and the tension spring (12).

5. A displacement tension sensing device for monitoring slope collapse using a series of piles, as described in claim 4, is characterized in that... The upper end of the spool (10) is provided with a left and right through hole, and the inside of the through hole is provided with a wire eye (17).

6. The displacement tension sensing device for monitoring slope collapse using sluice piles as described in claim 1, characterized in that, The main pile (4), multiple tandem piles (10), and tail pile (14) are arranged in a straight line.

7. The displacement tension sensing device for monitoring slope collapse using a series of piles as described in claim 1, characterized in that, The main pile (4), multiple tandem piles (10), and tail pile (14) are arranged in a zigzag or arc shape.

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