A monitoring device of a stress monitoring system of a steel slag slope and a stress monitoring system

Abstract

This disclosure relates to the field of slope disaster monitoring technology for steel slag accumulation bodies, and particularly to a monitoring device and a stress monitoring system for steel slag slopes. The monitoring device includes: a pre-embedded pipe inserted into a stress monitoring hole in the steel slag slope, with its sidewall fitting against the sidewall of the stress monitoring hole. An opening is provided at the top of the pipe, and an L-shaped groove is formed on the sidewall of the opening. A water-permeable hole is formed on the bottom sidewall of the pre-embedded pipe. A stress monitoring mechanism includes a stress sensor, which is disposed within the groove, with its sensing diaphragm attached to the bottom wall of the groove. This monitoring device, by providing a water-permeable hole on the bottom sidewall of the pre-embedded pipe, can balance the water pressure inside and outside the pre-embedded pipe in real time, allowing free flow of water between the inside and outside of the pipe. This ensures consistent water pressure inside and outside the pipe, completely eliminating interference from hydrostatic pressure on the stress sensor, avoiding deviations in the monitoring data, and ensuring the accuracy of the monitoring data.

Description

Technical Field

[0001] This disclosure relates to the field of steel slag slope disaster monitoring technology, and in particular to a monitoring device and stress monitoring system for a steel slag slope stress monitoring system. Background Technology

[0002] Steel slag is a large-scale industrial waste generated during steel production, with enormous emissions. Due to the difficulty in handling steel slag and the relatively low cost of temporary storage, it is often temporarily stored around the factory area through stockpiling, forming steel slag slopes. Steel slag itself is characterized by uneven particle size distribution, high porosity, and loose internal structure. Furthermore, some steel slag undergoes late-stage hydration and expansion reactions during long-term stockpiling, resulting in extremely poor stability of steel slag slopes.

[0003] Under the influence of external forces such as rainwater erosion, slag loading, and earthquakes, the slopes of steel slag accumulation bodies are highly susceptible to geological disasters such as landslides and collapses. These disasters can damage surrounding production facilities and transportation routes, and seriously threaten the lives and property of people in the vicinity. Therefore, real-time monitoring of the stability of steel slag accumulation body slopes, timely detection of potential instability and issuance of early warnings have become a crucial link in ensuring the safe production of steel plants.

[0004] Lateral stress is a core indicator reflecting the stability of steel slag slopes, and its distribution and changes directly predict the stress state and instability risk of the slope's internal structure. When abnormal fluctuations occur in the lateral stress within a steel slag slope, it often indicates deformation or damage to the internal structure. If this is not detected in time, it can easily trigger a landslide. Therefore, accurate monitoring of the lateral stress in steel slag slopes is of great significance for slope stability assessment and landslide risk early warning.

[0005] Currently, most existing slope stress monitoring devices are suitable for ordinary soil or rock slopes. When applied to steel slag accumulation slopes, the most prominent problem is that steel slag accumulation slopes have high internal porosity and poor permeability, making them prone to water accumulation after rainwater erosion or groundwater infiltration. The hydrostatic pressure formed by the accumulated water will directly affect the pipe and sensor of the monitoring device, interfering with the accuracy of stress monitoring data and resulting in large deviations in monitoring results, thus failing to provide reliable data support for slope stability assessment.

[0006] Based on the above, the existing technology needs further improvement. Summary of the Invention

[0007] To address the aforementioned technical problems, this disclosure provides a monitoring device for a stress monitoring system on a steel slag slope. The device includes: a pre-embedded pipe inserted into a stress monitoring hole in the steel slag slope, with its sidewall abutting against the sidewall of the stress monitoring hole. An opening is provided at the top of the pipe, and an L-shaped groove is formed on the sidewall of the opening. A water-permeable hole is formed on the bottom sidewall of the pre-embedded pipe. A stress monitoring mechanism includes a stress sensor disposed within the groove, with the sensor's diaphragm abutting against the bottom wall of the groove.

[0008] In some embodiments, a fixing plate is provided on the bottom of the pre-embedded pipe, and the fixing plate has mounting holes.

[0009] In some embodiments, the permeable holes include a plurality of holes, which are evenly distributed on the bottom sidewall of the pre-embedded pipe.

[0010] In some embodiments, the stress monitoring mechanism further includes a data acquisition module and a battery, both of which are electrically connected to the stress sensor.

[0011] In some embodiments, the stress monitoring mechanism further includes a waterproof box mounted above the stress sensor, with the data acquisition module and battery housed inside the waterproof box.

[0012] In some embodiments, the stress monitoring mechanism further includes a flange and a bracket, the flange being disposed on an opening, the bottom of the bracket being connected to the flange, and a waterproof box being detachably disposed on the bracket.

[0013] In some embodiments, the stress sensor includes a columnar vibrating wire earth pressure gauge.

[0014] This disclosure also provides a stress monitoring system for a steel slag slope, including multiple stress monitoring holes and multiple monitoring devices as described above. The multiple stress monitoring holes are distributed on the steel slag slope, and one monitoring device is inserted into one stress monitoring hole.

[0015] In some embodiments, a display is also included, which is electrically connected to a plurality of monitoring devices.

[0016] In some embodiments, a memory is also included, which is electrically connected to a plurality of monitoring devices.

[0017] This disclosure also provides a displacement monitoring system for steel slag slopes, including the aforementioned monitoring devices, which are distributed at different locations on the steel slag slope.

[0018] By adopting the above technical solution, this disclosure has at least the following beneficial effects: This disclosure discloses a monitoring device and a stress monitoring system for a steel slag slope. The monitoring device can balance the water pressure inside and outside the pre-embedded pipe in real time by opening a water-permeable hole on the bottom side wall of the pre-embedded pipe, allowing the water inside and outside the pre-embedded pipe to flow freely, ensuring that the water pressure inside and outside the pipe is consistent, completely eliminating the interference of hydrostatic pressure on the stress sensor, avoiding deviations in monitoring data, and ensuring the accuracy of monitoring data. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 disclosure. 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 a monitoring device according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of a stress sensor according to an embodiment of the present disclosure; Figure 3 This is a schematic diagram of a groove according to an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the bottom of a monitoring device according to an embodiment of the present disclosure; Figure 5 This is a schematic diagram of the top of a monitoring device according to an embodiment of the present disclosure.

[0021] 1. Embedded pipe; 2. Fixing plate; 3. Flange; 4. Waterproof box; 5. Bracket; 6. Water-permeable hole; 7. Stress sensor; 8. Groove. Detailed Implementation

[0022] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0024] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0026] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0027] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0029] As mentioned in the background section, existing slope stress monitoring devices are mostly suitable for ordinary soil or rock slopes. When applied to steel slag slopes, the most prominent problem is that steel slag slopes have high porosity and poor permeability, making them prone to water accumulation after rainwater erosion or groundwater infiltration. The hydrostatic pressure generated by this water directly affects the pipe and sensors of the monitoring device, interfering with the accuracy of stress monitoring data and leading to significant deviations in the monitoring results. This makes it impossible to provide reliable data support for slope stability assessment. Therefore, this disclosure provides a monitoring device and a stress monitoring system for steel slag slopes. The monitoring device, by opening permeable holes on the bottom sidewall of a pre-embedded pipe, can balance the water pressure inside and outside the pre-embedded pipe in real time, allowing free flow of water inside and outside the pipe. This ensures consistent water pressure inside and outside the pipe, completely eliminating the interference of hydrostatic pressure on the stress sensor, avoiding deviations in the monitoring data, and ensuring the accuracy of the monitoring data. This solves one or more problems in the prior art.

[0030] Some embodiments of the present invention also disclose a monitoring device for a stress monitoring system of steel slag slopes, such as... Figures 1-4 As shown, it includes: a pre-embedded pipe 1, which is inserted into the stress monitoring hole of the steel slag slope, and its sidewall is attached to the sidewall of the stress monitoring hole. An opening is provided at the top of the pipe, and an L-shaped groove 8 is provided on the sidewall of the opening. A water-permeable hole 6 is provided on the bottom sidewall of the pre-embedded pipe 1; a stress monitoring mechanism, which includes a stress sensor 7, which is installed in the groove 8, and the sensing diaphragm of the stress sensor 7 is attached to the bottom wall of the groove 8.

[0031] Specifically, the embedded pipe 1 can be made of stainless steel, which has advantages such as corrosion resistance, high temperature resistance, high strength, and strong wear resistance. It can adapt to the harsh environment of steel slag slopes—steel slag particles are hard and angular, and water accumulation easily leads to corrosion. Stainless steel can avoid being worn by steel slag particles or corroded by water accumulation, thus extending the service life of the device. The embedded pipe 1 is cylindrical in shape, and its length can be flexibly set according to the monitoring depth of the steel slag slope. The specific dimensions can be adapted and adjusted according to the monitoring requirements and the size of the stress monitoring holes to ensure that it can adapt to monitoring scenarios of steel slag slopes at different depths.

[0032] The pre-embedded pipe 1 is inserted into the stress monitoring hole of the steel slag slope, and its sidewall is tightly attached to the sidewall of the stress monitoring hole. Its functions are as follows: First, it serves as a carrier for stress transmission, uniformly transmitting the transverse stress inside the steel slag accumulation slope to the stress sensor 7. The transverse stress inside the steel slag accumulation slope acts on the outer wall of the pre-embedded pipe 1. Since the sidewall of the pre-embedded pipe 1 is tightly attached to the sidewall of the monitoring hole, the stress can be quickly and evenly transmitted to the inside of the pipe through the pipe wall of the pre-embedded pipe 1, avoiding loss, deviation or distortion during the stress transmission process, and providing a basis for accurate monitoring. Second, it serves as a carrier for water pressure balance. Through the water-permeable hole 6 opened at the bottom sidewall, the water inside and outside of the pipe can circulate, balancing the water pressure inside and outside the pipe.

[0033] The size of the opening at the top of the pre-embedded pipe 1 is matched with the size of the stress sensor 7, ensuring that the sensor can be smoothly installed and fixed. An L-shaped groove 8 is provided on the side wall of the opening. The L-shaped groove 8 serves two purposes: first, it limits and fixes the sensor; the size of the L-shaped groove 8 matches the size of the stress sensor 7, precisely limiting the stress sensor 7 within the groove 8, preventing displacement or shaking during monitoring, ensuring the sensor's stable position, and thus avoiding monitoring deviations caused by sensor displacement; second, it ensures stress transmission. The bottom wall of the L-shaped groove 8 is a planar structure, and the sensing diaphragm of the stress sensor 7 adheres to the bottom wall of the groove 8, allowing the lateral stress transmitted from the pre-embedded pipe 1 to act directly on the sensor's sensing diaphragm, reducing losses during stress transmission and ensuring the accuracy of the monitoring data.

[0034] The high porosity and poor permeability of steel slag slopes make them prone to water accumulation in the monitoring holes and around the pre-buried pipe 11 after rainwater runoff or groundwater infiltration. The hydrostatic pressure generated by this water acts on the pipe wall and is transmitted to the stress sensor 7, causing interference from hydrostatic pressure in the stress data detected by the sensor, resulting in significant monitoring deviations and failing to accurately reflect the actual lateral stress state of the steel slag slope. The permeable holes 6, however, allow free flow of water between the inside and outside of the pre-buried pipe 1, balancing the water pressure inside and outside the pipe in real time. This ensures consistent water pressure inside and outside the pipe, completely eliminating the interference of hydrostatic pressure on the stress sensor 7. This enables the sensor to accurately capture the actual lateral stress of the steel slag slope, solving the core problem of large monitoring deviations in existing devices.

[0035] Compared with the prior art, this disclosure proposes a monitoring device for a stress monitoring system of steel slag slope. By opening a water-permeable hole 6 on the bottom side wall of the pre-embedded pipe 1, the water pressure inside and outside the pre-embedded pipe 1 can be balanced in real time, allowing the water inside and outside the pre-embedded pipe 1 to flow freely, ensuring that the water pressure inside and outside the pipe is consistent, completely eliminating the interference of hydrostatic pressure on the stress sensor 7, avoiding deviations in monitoring data, and ensuring the accuracy of monitoring data.

[0036] In some embodiments, such as Figure 4 As shown, a fixing plate 2 is provided on the bottom of the embedded pipe 1, and the fixing plate 2 has an installation hole. Specifically, after the embedded pipe 1 is placed into the stress monitoring hole, the fixing plate 2 is fixedly connected to the concrete base at the bottom of the monitoring hole by anchor bolts inserted in the installation hole, forming a stable bottom support. Furthermore, due to the requirements of the installation process, after the fixing plate 2 is installed on the concrete base, there is a gap between the outer wall of the embedded pipe 1 and the inner wall of the monitoring hole. In order to ensure that the internal stress of the steel slag slope is effectively transferred to the side wall of the embedded pipe 1, graded sand and gravel can be filled into the gap to transfer stress.

[0037] In some embodiments, such as Figure 4 As shown, there are multiple permeable holes 6, which are evenly distributed on the bottom sidewall of the pre-buried pipe 1. The evenly distributed multiple permeable holes 6 can further improve the water pressure balance efficiency inside and outside the pre-buried pipe 1, enable the water inside and outside the pre-buried pipe 1 to flow quickly, ensure that the water pressure at all positions at the bottom of the pre-buried pipe 1 is uniform, and avoid monitoring deviations caused by local water pressure imbalance.

[0038] In some embodiments, the stress monitoring mechanism further includes a data acquisition module and a battery (not shown in the figure), both of which are electrically connected to the stress sensor 7. The battery provides power to the stress sensor 7, and the data acquisition module acquires, converts, and processes the electrical signal output by the stress sensor in real time. When subjected to lateral stress, the stress sensor 7 outputs an electrical signal (usually a frequency signal or voltage signal) corresponding to the magnitude of the stress. This electrical signal is relatively weak and contains some interference (even after excluding hydrostatic pressure interference, a small amount of environmental interference may still exist). The data acquisition module can amplify, filter, and convert this electrical signal into a digital signal that is easy to store and transmit, facilitating subsequent data analysis and processing by personnel.

[0039] In some embodiments, such as Figure 5 As shown, the stress monitoring mechanism also includes a waterproof box 4, which is mounted above the stress sensor 7. The data acquisition module and battery are housed inside the waterproof box 4. The waterproof box 4 is made of high-strength waterproof plastic or stainless steel, and has excellent waterproof, dustproof, corrosion-resistant, and impact-resistant properties. It can effectively isolate external interference such as rainwater, dust, and steel slag particles, preventing short circuits and damage to electrical components such as the data acquisition module and battery, and ensuring the normal operation of the device in harsh environments.

[0040] In some embodiments, such as Figure 3 and Figure 5As shown, the stress monitoring mechanism also includes a flange 3 and a bracket 5. The flange 3 is located on the opening, and the bottom of the bracket 5 is connected to the flange 3. The waterproof box 4 is detachably mounted on the bracket 5. Specifically, the flange 3 and the bracket 5 ensure the stable installation of the waterproof box 4. The flange 3 can be fully welded to the embedded pipe 1 to ensure connection strength and sealing, preventing rainwater, dust, steel slag particles, etc., from entering the embedded pipe 1 through the connection between the flange 3 and the embedded pipe 1. Multiple bolt holes are evenly distributed around the flange 3 for connecting with the bracket 5, ensuring that the bracket 5 is securely installed.

[0041] In some embodiments, the stress sensor 7 includes a columnar vibrating wire earth pressure gauge. Specifically, the columnar vibrating wire earth pressure gauge has advantages such as high measurement accuracy, strong stability, strong anti-interference ability, wide measurement range, and long service life. It is very suitable for the complex monitoring environment of steel slag slopes—the internal stress changes of steel slag slopes are complex, and there are various interference factors such as electromagnetic and temperature interference. The columnar vibrating wire earth pressure gauge can effectively resist these interferences and ensure the authenticity of the monitoring data.

[0042] On the other hand, some embodiments of the present invention also disclose a stress monitoring system for steel slag slopes, including multiple stress monitoring holes and the aforementioned monitoring device. The multiple stress monitoring holes are distributed on the steel slag slope, and one monitoring device is inserted into one stress monitoring hole. Specifically, by setting up multiple stress monitoring holes and multiple monitoring devices, lateral stress monitoring of different areas of the steel slag slope is achieved, forming a comprehensive, multi-point monitoring network to fully understand the stress distribution of the steel slag slope and the stress change trend under different water accumulation conditions.

[0043] In some embodiments, a display (not shown) is also included, which is electrically connected to multiple monitoring devices. Specifically, the display enables real-time display and alarm of monitoring data from multiple monitoring devices, allowing for timely detection of stress anomalies. This facilitates real-time monitoring of the stress state of the steel slag slope by staff, enhancing the practicality and early warning capabilities of the monitoring system.

[0044] In some embodiments, a memory (not shown) is also included, which is electrically connected to multiple monitoring devices. Specifically, the memory enables long-term storage and backup of monitoring data, providing reliable historical data support for the long-term stability assessment and scientific management of steel slag slopes, and meeting the needs of long-term monitoring of steel slag accumulation slopes.

[0045] In summary, compared with the prior art, this disclosure provides a monitoring device and a stress monitoring system for a steel slag slope. The monitoring device, by opening a water-permeable hole 6 on the bottom side wall of the pre-embedded pipe 1, can balance the water pressure inside and outside the pre-embedded pipe 1 in real time, allowing the water inside and outside the pre-embedded pipe 1 to flow freely, ensuring that the water pressure inside and outside the pipe is consistent, completely eliminating the interference of hydrostatic pressure on the stress sensor 7, avoiding deviations in monitoring data, and ensuring the accuracy of monitoring data.

[0046] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0047] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A monitoring device for a stress monitoring system of steel slag slope, characterized in that, include: The pre-embedded pipe (1) is inserted into the stress monitoring hole of the steel slag slope, and its side wall is attached to the side wall of the stress monitoring hole. An opening is provided at its top, and a groove (8) with an L-shaped cross section is provided on the side wall of the opening. A water-permeable hole (6) is provided on the bottom side wall of the pre-embedded pipe (1). The stress monitoring mechanism includes a stress sensor (7), which is disposed in the groove (8) and the sensing diaphragm of the stress sensor (7) is attached to the bottom wall of the groove (8).

2. The monitoring device of the stress monitoring system for steel slag slopes according to claim 1, characterized in that, A fixing plate (2) is provided on the bottom of the pre-embedded pipe (1), and the fixing plate (2) has an installation hole.

3. The monitoring device of the stress monitoring system for steel slag slopes according to claim 1, characterized in that, The permeable holes (6) include multiple holes, which are evenly distributed on the bottom sidewall of the pre-embedded pipe (1).

4. The monitoring device of the stress monitoring system for steel slag slopes according to claim 1, characterized in that, The stress monitoring mechanism also includes a data acquisition module and a battery, both of which are electrically connected to the stress sensor (7).

5. The monitoring device of the stress monitoring system for steel slag slopes according to claim 4, characterized in that, The stress monitoring mechanism also includes a waterproof box (4), which is mounted above the stress sensor (7), and the data acquisition module and the battery are located inside the waterproof box (4).

6. The monitoring device of the stress monitoring system for steel slag slopes according to claim 5, characterized in that, The stress monitoring mechanism also includes a flange (3) and a bracket (5). The flange (3) is disposed on the opening, the bottom of the bracket (5) is connected to the flange (3), and the waterproof box (4) is detachably disposed on the bracket (5).

7. The monitoring device of the stress monitoring system for steel slag slopes according to claim 1, characterized in that, The stress sensor (7) includes a columnar vibrating wire earth pressure gauge.

8. A stress monitoring system for steel slag slopes, characterized in that, It includes multiple stress monitoring holes and multiple monitoring devices as described in claims 1-7, with the multiple stress monitoring holes distributed on the steel slag slope, and each of the monitoring devices inserted into the corresponding stress monitoring hole.

9. The stress monitoring system for steel slag slopes according to claim 8, characterized in that, It also includes a display that is electrically connected to the plurality of the monitoring devices.

10. The stress monitoring system for steel slag slopes according to claim 8, characterized in that, It also includes a memory electrically connected to a plurality of the monitoring devices.

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