A retaining wall for open-pit mine slope protection with pressure monitoring function

Abstract

The present invention discloses a retaining wall for open-pit mine slope protection with a pressure monitoring function, belonging to the technical field of slope protection equipment. The retaining wall mechanism includes a retaining wall mechanism plugged into a base mechanism, and the retaining wall mechanism includes a vertical plate, a controller, a mounting plate, and a conveying assembly. The retaining wall mechanism of the present invention is provided with a vertical plate, a distributed fiber optic pressure sensor, a controller, a mounting plate, and a conveying assembly. The distributed fiber optic pressure sensor can monitor the pressure of inferior rock on the retaining wall in real time. When the detected pressure value exceeds a preset threshold, the servo motor is automatically activated, driving the spiral conveying rod to rotate and convey the inferior rock. This can effectively prevent the inferior rock from excessively squeezing the retaining wall, thereby improving the stability and service life of the retaining wall.

Description

Technical Field

[0001] The present invention belongs to the technical field of slope protection equipment, and in particular relates to a retaining wall for open-pit mine slope protection with a pressure monitoring function. Background Art

[0002] As mining depths and scale increase, slope rock masses, under the influence of multiple factors such as gravity, groundwater activity, and blasting vibration, are prone to geological disasters such as landslides and collapses, seriously threatening the safety of mine workers and the normal operation of mining equipment. To effectively prevent and control slope instability, slope protection technologies have been widely researched and applied.

[0003] Traditional slope protection devices, designed solely based on preset safety factors, are unable to cope with the dynamic changes in slope stress during mining. Once rock accumulation causes sudden changes in slope pressure, traditional slope protection devices are unable to detect and respond in a timely manner, potentially leading to device damage and slope instability. Summary of the Invention

[0004] The present invention aims to provide a retaining wall for open-pit mine slope protection with pressure monitoring capabilities. This approach addresses the technical problem that conventional slope protection devices, designed solely based on a preset safety factor, are unable to cope with dynamic changes in slope stress during mining. If rock accumulation causes sudden changes in slope pressure, conventional slope protection devices are unable to detect and respond in a timely manner, potentially leading to device damage and slope instability.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A retaining wall for open-pit mine slope protection with a pressure monitoring function includes a retaining wall mechanism plugged into a base mechanism, the retaining wall mechanism including: a vertical plate, on which two groups of cleaning doors are installed, and distributed optical fiber pressure sensors are installed on the vertical plate and the cleaning doors; a controller, which is installed on the top surface of the vertical plate through a mounting plate; a conveying assembly, which includes: a fixed cylinder, located between the two groups of cleaning doors, installed through the vertical plate, and a spiral conveying rod rotatably installed inside the cylinder; a discharge pipe, installed on the fixed cylinder; a servo motor, installed on the fixed cylinder, and its power output shaft is connected to the spiral conveying rod.

[0007] Preferably, the controller includes: a threshold setting module for receiving pressure thresholds P1, P2 and P3 set by the user, and P1<P2<P3; a data receiving module for receiving the measured pressure value sent by the distributed optical fiber pressure sensor every 60 seconds, and screening out the maximum measured pressure value P; a data comparison module for receiving the maximum measured pressure value sent by the data receiving module, and then comparing the maximum measured pressure value with the pressure threshold to determine and generate a corresponding cleaning mode; and then generating a corresponding control signal according to the corresponding cleaning mode and the maximum measured pressure value; a control module for receiving the control signal sent by the data comparison module, controlling the speed and rotation direction of the servo motor, or controlling the remote sending module to send an alarm message to the user terminal; and a remote sending module for sending an alarm message to the user terminal.

[0008] Preferably, the cleaning mode is generated as follows: when P1≤P<P2, the cleaning mode generated by the data comparison module is a low-speed mode; when P2≤P<P3, the cleaning mode generated by the data comparison module is a medium-speed mode; when P≥P3, the cleaning mode generated by the data comparison module is a high-speed impact mode; when the maximum measured pressure value after three consecutive forward cleanings is compared with the maximum measured pressure value before three consecutive forward cleanings, if the rate of change is less than 10%, the cleaning mode generated by the data comparison module is a forward and reverse mode; after the forward and reverse mode is completed, if the maximum measured pressure value measured after the next cleaning is compared with the maximum measured pressure value measured last time, the cleaning mode generated by the data comparison module is an alarm mode.

[0009] Preferably, the base mechanism includes: a bottom plate, which is provided with a plurality of slots and a plurality of jacks; a guide plate, which is fixedly connected to the bottom plate and has a top surface arranged in a V shape.

[0010] Preferably, the base mechanism further includes: two first inserts, both mounted on the top surface of the base plate; and a plurality of drainage holes, all penetrating the base plate.

[0011] Preferably, the wall retaining mechanism further includes: a plurality of plug blocks, all installed on the bottom surface of the vertical plate, respectively engaged with the plurality of slots; a plurality of steel nails, respectively installed on the bottom surfaces of the plurality of plug blocks; and two second plug tubes, both installed on the vertical plate.

[0012] Preferably, the base mechanism also includes two support assemblies and multiple anchor rod assemblies, and the support assembly includes: a fixed rod, and a first plug rod and a second plug rod are respectively installed at both ends of the fixed rod, the first plug rod is plugged into the first plug tube, and the second plug rod is plugged into the second plug tube.

[0013] Preferably, the anchor rod assembly includes: a hollow rod passing through the insertion hole; a limiting head threadedly connected to the upper end of the hollow rod, and a top surface of the limiting head is provided with a plurality of slots, and the slots are plugged into and matched with the first insertion rod.

[0014] Preferably, the wall retaining mechanism further includes: four connecting cylinders, which are respectively installed on the two groups of cleaning doors; and two limiting rods, which are plugged into the two connecting cylinders.

[0015] Preferably, the retaining wall mechanism further comprises: a fixing frame installed on a side of the vertical plate away from the distributed optical fiber pressure sensor; and a solar cell panel installed on the fixing frame.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The retaining wall mechanism of the present invention is equipped with vertical plates, distributed fiber optic pressure sensors, controllers, mounting plates and conveying components. The distributed fiber optic pressure sensors can monitor the pressure of inferior rock on the retaining wall in real time. When the detected pressure value exceeds the preset threshold, the servo motor will be automatically started to convey the inferior rock through the spiral conveying rod, which can effectively prevent the inferior rock from excessively squeezing the retaining wall and improve the stability and service life of the retaining wall.

[0018] 2. The controller in the present invention can automatically select different cleaning modes according to the detected pressure values ​​by setting a threshold setting module, a data receiving module, a data comparison module, a remote sending module and a control module, thereby avoiding unnecessary energy consumption and equipment wear and improving the cleaning effect.

[0019] 3. The retaining wall for open-pit mine slope protection with pressure monitoring function in the present invention is equipped with slots, plugs, steel nails, a first plug tube, a second plug tube and a support assembly. By plugging the plugs on the vertical plate into the slots of the bottom plate, and then fixing the ground with steel nails, and then connecting the support assembly with the first plug tube and the second plug tube, the retaining wall can be quickly assembled, shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The present invention is a three-dimensional retaining wall for open-pit mine slope protection with a pressure monitoring function. Figure 1 ;

[0022] Figure 2 The present invention is a three-dimensional retaining wall for open-pit mine slope protection with a pressure monitoring function. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the bottom plate, riser and conveying assembly in the present invention;

[0024] Figure 4 is a three-dimensional diagram of the bottom plate of the present invention;

[0025] Figure 5 A three-dimensional diagram of the retaining wall mechanism of the present invention;

[0026] Figure 6 Schematic diagram of the internal structure of the fixed cylinder in the present invention;

[0027] Figure 7 Schematic diagram of the assembly structure of the limit head and the support assembly in the present invention;

[0028] Figure 8 It is a module diagram of the controller in the present invention;

[0029] 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: 1. The support assembly includes the following components: DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in this field without creative work should fall within the scope of protection of the present invention.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0033] The present invention is described in detail with reference to the accompanying drawings. When describing embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale for ease of illustration. Furthermore, the accompanying drawings are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0034] At the same time, in the description of the present invention, it should be noted that the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In this disclosure, unless otherwise specified or limited, the terms "mounted, connected, and connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections. They may also refer to mechanical, electrical, or direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure.

[0036] Example 1: Figure 1-Figure 3 、 Figure 5 and Figure 6 As shown, a retaining wall for open-pit mine slope protection with a pressure monitoring function includes a retaining wall mechanism 200 plugged into a base mechanism 100 , and the retaining wall mechanism 200 includes a vertical plate 201 , a controller 214 , a mounting plate 213 and a conveying assembly 220 .

[0037] Two sets of cleaning doors 205 are mounted on the vertical plate 201. Each set of cleaning doors 205 consists of two doors, both hinged to the vertical plate 201. Distributed fiber optic pressure sensors (not shown) are mounted on both the vertical plate 201 and the cleaning doors 205. Wooden boards are mounted on the cleaning doors 205 and the vertical plate 201. Rubber protective strips are installed between the wooden boards, the vertical plate 201, and the cleaning doors 205. The distributed fiber optic pressure sensors are mounted within the rubber protective strips. A controller 214 is mounted on the top surface of the vertical plate 201 via a mounting plate 213.

[0038] The conveying assembly 220 includes a fixed cylinder 221, a discharge pipe 223, and a servo motor 224. The fixed cylinder 221 is located between the two sets of cleaning doors 205 and is installed through the vertical plate 201. A screw conveying rod 225 is rotatably mounted inside the fixed cylinder 221. The discharge pipe 223 is mounted on the fixed cylinder 221. The servo motor 224 is mounted on the fixed cylinder 221, and the servo motor 224 power output shaft is connected to the screw conveying rod 225.

[0039] Specifically, the vertical plate 201 and the cleaning door 205 are used to block the inferior rock rolling down the slope. When the inferior rock comes into contact with the cleaning door 205 and the vertical plate 201, the distributed optical fiber pressure sensor will detect the pressure. When the detected pressure value exceeds the preset threshold, the servo motor 224 will be started, thereby driving the spiral conveying rod 225 to rotate. The rotating spiral conveying rod 225 will convey the inferior rock, reducing the pressure of the inferior rock on the cleaning door 205 and the vertical plate 201, and improving the stability of the retaining wall.

[0040] The inferior rock mass transported by the fixed cylinder 221 and the spiral conveying rod 225 will be discharged from the discharge pipe 223, and the inferior rock mass discharged from the discharge pipe 223 will fall on the base mechanism 100, thereby increasing the overall weight of the base mechanism 100 and further improving the stability of the device.

[0041] like Figure 2 and Figure 4 As shown, the base mechanism 100 includes a base plate 101, a guide plate 102, two first inserts 105, and a plurality of drainage holes 106. The base plate 101 is provided with a plurality of slots 103 and a plurality of inserts 104. The fixed cylinder 221 contacts the base plate 101 via a plurality of support brackets 222, so that the base plate 101 supports the fixed cylinder 221. The guide plate 102 is fixedly connected to the base plate 101, with the top surface of the guide plate 102 arranged in a V-shape, and the fixed cylinder 221 is connected to the lowest point of the guide plate 102. Both first inserts 105 are mounted on the top surface of the base plate 101; the plurality of drainage holes 106 are provided throughout the base plate 101.

[0042] Specifically, by providing the guide plate 102 , it is convenient to guide the falling inferior rock mass into the fixing cylinder 221 .

[0043] like Figure 2 As shown, the wall retaining mechanism 200 also includes multiple insert blocks 202, multiple steel nails 203, and two second insert cylinders 204. The multiple insert blocks 202 are all mounted on the bottom surface of the vertical plate 201. The multiple insert blocks 202 are respectively plugged into the multiple slots 103; the multiple steel nails 203 are respectively mounted on the bottom surface of the multiple insert blocks 202; and the two second insert cylinders 204 are both mounted on the vertical plate 201.

[0044] Specifically, by providing the insert block 202, it is convenient to plug the vertical plate 201 into the bottom plate 101. By providing a plurality of steel nails 203, it is convenient to improve the connection stability between the vertical plate 201 and the ground.

[0045] like Figure 1-Figure 3 As shown, the base mechanism 100 further includes two support assemblies 110 and a plurality of anchor rod assemblies 120. The support assembly 110 includes a fixing rod 111. A first insertion rod 112 and a second insertion rod 113 are respectively mounted at both ends of the fixing rod 111. The first insertion rod 112 is plugged into the first insertion tube 105, and the second insertion rod 113 is plugged into the second insertion tube 204.

[0046] Specifically, by providing the support assembly 110 , the vertical plate 201 is supported, the stability of the vertical plate 201 is improved, and the vertical plate 201 can block more inferior rock masses.

[0047] like Figure 1 and Figure 7 As shown, the anchor rod assembly 120 includes a hollow rod 121 and a stopper 122. The hollow rod 121 passes through the insertion hole 104; the stopper 122 is threadedly connected to the upper end of the hollow rod 121, and a plurality of slots 123 are formed on the top surface of the stopper 122, which are plugged into and matched with the first insertion rod 112.

[0048] Specifically, the hollow rod 121 is passed through the socket 104 and drilled into the ground, and mortar is poured into the hollow rod 121. After the mortar solidifies, the limit head 122 is threadedly connected to the hollow rod 121 so that the limit head 122 abuts against the base plate 101, thereby fixing the base plate 101.

[0049] When rotating the limit head 122, the first insertion rod 112 can be inserted into the slot 123, and then the fixing rod 111 can be rotated to drive the limit head 122 to rotate. Since the force arm is increased, the limit head 122 can be rotated more labor-savingly.

[0050] like Figure 3 As shown, the retaining wall mechanism 200 further includes four connecting cylinders 206 and two limiting rods 207. The four connecting cylinders 206 are respectively installed on the two sets of cleaning doors 205; the two limiting rods 207 are plugged into the two connecting cylinders 206.

[0051] Specifically, by providing the connecting tube 206 and the limiting rod 207, the cleaning door 205 can be placed so as to open automatically.

[0052] like Figure 1 As shown, the retaining wall mechanism 200 further includes a fixing frame 211 and a solar panel 212. The fixing frame 211 is mounted on a side of the vertical plate 201 away from the distributed optical fiber pressure sensor; the solar panel 212 is mounted on the fixing frame 211.

[0053] Specifically, by providing the solar cell panel 212 , light energy can be converted into electrical energy and stored. The stored electrical energy is used to power the controller 214 , the distributed optical fiber pressure sensor and the servo motor 224 .

[0054] Working principle: For slopes of inferior rock masses with hidden dangers, assembled retaining walls are installed. The specific operations are as follows: Place the base plate 101 on the ground, then use a blasting drilling machine to drill a hole from the socket 104. The hole depth is generally 10-15 meters. Then insert the hollow rod 121 into the drilled hole, and pour mortar into the inside of the hollow rod 121. After the mortar solidifies, the limit head 122 is threadedly connected to the hollow rod 121 to fix the base plate 101.

[0055] When rotating the limiting head 122 , the first insertion rod 112 can be inserted into the slot 123 , and then the fixing rod 111 can be rotated to drive the limiting head 122 to rotate, so that the limiting head 122 can be rotated more labor-savingly.

[0056] The steel nail 203 is inserted into the ground by plugging the plug block 202 on the vertical plate 201 into the slot 103 on the bottom plate 101. Finally, the first plug rod 112 and the second plug rod 113 are plugged into the first plug tube 105 and the second plug tube 204 respectively, and the vertical plate 201 is supported by the fixing rod 111.

[0057] The above completes the installation of the retaining wall. The vertical plate 201 and the cleaning door 205 block the low-quality rock mass rolling down the slope. The solar panel 212 converts light energy into electrical energy and stores the electrical energy. The stored electrical energy is used to power the controller 214, the distributed fiber optic pressure sensor, and the servo motor 224. When the low-quality rock mass contacts the cleaning door 205 and the vertical plate 201, the distributed fiber optic pressure sensor detects the pressure. When the highest value of the detected pressure exceeds a preset threshold, the servo motor 224 is activated, which in turn drives the screw conveyor rod 225 to rotate. The rotating screw conveyor rod 225 conveys the low-quality rock mass, reducing the pressure of the low-quality rock mass on the cleaning door 205 and the vertical plate 201, and improving the stability of the device.

[0058] The inferior rock mass transported by the fixed cylinder 221 and the spiral conveying rod 225 will be discharged from the discharge pipe 223, and the inferior rock mass discharged from the discharge pipe 223 will fall on the base mechanism 100, thereby increasing the weight of the base mechanism 100 and further improving the stability of the device.

[0059] When the data of the pressure sensor at a certain height behind the cleaning door 205 increases, it means that the sliding low-quality rock has accumulated to a certain height. The staff can go to the site to open the cleaning door 205, clean out the sliding rock, and reduce the pressure on the back of the vertical plate 201.

[0060] Example 2: Figure 8 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is:

[0061] The controller 214 includes a threshold setting module, a data receiving module, a data comparing module, a remote sending module and a control module.

[0062] The threshold setting module is used to receive the pressure thresholds set by the user. The pressure thresholds include P1, P2, and P3, and P1 < P2 < P3. The pressure thresholds are determined by those skilled in the art according to specific application requirements. In this embodiment, P1, P2, and P3 are set to 5kPa, 15kPa, and 25kPa, respectively.

[0063] The data receiving module is used to receive the measured pressure value sent every 60 seconds by the distributed optical fiber pressure sensor behind the vertical plate 201 and the cleaning door 205, and to filter out the maximum measured pressure value P, and then send the maximum measured pressure value to the data comparison module; wherein, during the cleaning process, the data receiving module does not send the maximum measured pressure value to the data comparison module.

[0064] The data comparison module is used to receive the maximum measured pressure value sent by the data receiving module, and then compare the maximum measured pressure value with the pressure threshold to determine and generate a corresponding cleaning mode; then generate a corresponding control signal based on the corresponding cleaning mode and the maximum measured pressure value, and then send the control signal to the control module;

[0065] The remote sending module is used to send alarm information to the user terminal, where the user terminal includes a mobile phone, a computer, and a device capable of receiving and displaying information;

[0066] The control module is used to receive the control signal sent by the data comparison module, control the speed and rotation direction of the servo motor 224, and control the remote sending module to send an alarm message to the user terminal; wherein the alarm message includes the retaining wall number so that the user can quickly find the retaining wall.

[0067] Cleanup mode is generated as follows:

[0068] The cleaning modes include low-speed mode, medium-speed mode, high-speed impact mode, forward and reverse mode and alarm mode; low-speed mode, medium-speed mode and high-speed impact mode are all used to control the rotation speed of the servo motor 224. In this embodiment, the maximum rotation speed of the servo motor 224 is 1000r / min, and the low-speed mode, medium-speed mode and high-speed impact mode correspond to the rotation speed of the servo motor 224 increasing in sequence. The forward and reverse mode is used to control the rotation speed and rotation direction of the servo motor 224.

[0069] When P1≤P<P2, the cleaning mode generated by the data comparison module is the low-speed mode, and its control signal corresponds to the speed range of the servo motor 224 of 200-400r / min, and when the P value increases by 1kPa, the speed automatically increases by 50r / min. In this mode, the speed of the servo motor 224 remains constant after reaching 400r / min; the single cleaning time in the low-speed mode is 5 minutes.

[0070] When P2≤P<P3, the cleaning mode generated by the data comparison module is the medium-speed mode, and its control signal corresponds to the speed range of the servo motor 224 of 600-800r / min, and when the P value increases by ±1kPa, the speed compensation is ±30r / min. In this mode, the speed of the servo motor 224 remains constant when it reaches 600r / min or 800r / min; the single cleaning time of the medium-speed mode is 10 minutes.

[0071] When P≥P3, the cleaning mode generated by the data comparison module is the high-speed impact mode, and its control signal corresponds to the speed range of the servo motor 224 is 1000r / min, and the servo motor 224 will pause for 2 seconds every 3 seconds of operation, and cycle 3 times; the fixed cycle length of the high-speed impact mode is 15 seconds / time, and it can be triggered repeatedly.

[0072] When a high-speed impact mode is completed, the pressure behind the vertical plate 201 and the cleaning door 205 is immediately measured by the distributed optical fiber pressure sensor, and the maximum measured pressure value is obtained; the newly obtained maximum measured pressure value is compared with the maximum measured pressure value before the high-speed impact mode cleaning. If the pressure behind the vertical plate 201 and the cleaning door 205 (maximum measured pressure value) drops by ≥10kPa, the cleaning mode is switched to the medium-speed mode; if the maximum measured pressure value drops by <10kPa, the high-speed impact mode is continued, and the speed of the servo motor 224 is reduced by 10% to increase the torque of the servo motor 224; it should be noted that the default working mode of the servo motor 224 is constant torque, and it is switched to constant power during high-speed impact;

[0073] When the maximum measured pressure value after three consecutive forward cleanings is compared with the value before the three consecutive forward cleanings, and the change rate is less than 10%, the cleaning mode generated by the data comparison module is the forward and reverse mode. The control signal in the forward and reverse mode corresponds to: switching the power output shaft of the servo motor 224 to counterclockwise rotation, and making the servo motor 224 reverse at 150r / min for 20 seconds, and immediately resuming the clockwise rotation of the servo motor 224 after the reversal is completed;

[0074] After the forward / reverse rotation mode is completed, and after the next cleaning cycle (low-speed mode, medium-speed mode, or high-speed impact mode) is performed, pressure measurement is immediately performed. If the maximum measured pressure value decreases by less than 10% compared to the maximum measured pressure value of the previous measurement (i.e., before the forward / reverse rotation mode is performed), the cleaning mode generated by the data comparison module is selected as the alarm mode. The corresponding control signal in the alarm mode is: shutting down the servo motor 224 and sending an alarm message to the user terminal via the remote transmission module. By sending the alarm message to the user terminal, it is convenient to remind the staff to clean the rock mass manually or repair the equipment in a timely manner.

[0075] When P<P1, it indicates that there is no inferior rock mass or significant accumulation behind the vertical plate 201 and the cleaning door 205, and no cleaning is required;

[0076] When P1≤P<P2, it means that there is slight accumulation of loose and inferior rock mass, but the resistance is small. The low-speed mode is used to transport the loose and inferior rock mass, which can also reduce energy consumption.

[0077] When P2≤P<P3, it means that there are massive rocks or dense accumulations of inferior rock behind the vertical plate 201 and the cleaning door 205, and the conveying resistance of the rock is significantly increased. The medium speed mode is selected to prioritize the conveying efficiency, and the cleaning time is shortened by increasing the speed to avoid further accumulation of inferior rock and compaction.

[0078] When P≥P3, it indicates that there are large rocks or serious dense accumulation behind the vertical plate 201 and the cleaning door 205. The conveying resistance of the rock is large and may cause the servo motor 224 to overload. The high-speed impact mode is used to perform instant impact and intermittent start and stop on the inferior rock to prevent the servo motor 224 from getting stuck.

[0079] After three consecutive forward cleaning cycles, if the pressure change behind the vertical plate 201 and the cleaning door 205 is less than 10%, the low-quality rock behind the vertical plate 201 and the cleaning door 205 is determined to be compacted and adhered. The forward and reverse modes are selected, using the impact force of the spiral conveyor rod 225 blades to break the adhered structure and improve cleaning efficiency. The servo motor 224 rotates clockwise by default, and the spiral blades default to a clockwise cleaning direction.

[0080] The controller 214 has three levels of pressure thresholds. The measured pressure value P is compared with the threshold through the data comparison module to generate cleaning modes such as low-speed, medium-speed, and high-speed impact, and accurately control the speed and direction of the servo motor 224 to avoid the problems of high energy consumption under low load or low efficiency under high load.

[0081] Moreover, the forward and reverse modes can break the adhesion of the rock through mechanical disturbance, solve the problem of difficult cleaning with traditional one-way rotation, and improve the cleaning effect.

[0082] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

[0083] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A retaining wall for open-pit mine slope protection with a pressure monitoring function, comprising a retaining wall mechanism plugged into a base mechanism, characterized in that: The retaining wall mechanism comprises: A vertical plate with two sets of cleaning doors installed on it, and distributed optical fiber pressure sensors are installed on both the vertical plate and the cleaning doors; A controller is mounted on the top surface of the vertical plate through a mounting plate; A conveying assembly comprising: A fixed cylinder is located between the two sets of cleaning doors and is installed through the vertical plate. A spiral conveying rod is rotatably installed inside the fixed cylinder. A discharge pipe is installed on the fixed cylinder; A servo motor is mounted on the fixed cylinder, and its power output shaft is connected to the screw conveying rod; The controller includes: A threshold setting module is used to receive pressure thresholds P1, P2 and P3 set by the user, and P1<P2<P3; The data receiving module is used to receive the measured pressure value sent by the distributed optical fiber pressure sensor every 60 seconds and filter out the maximum measured pressure value P; The data comparison module is used to receive the maximum measured pressure value sent by the data receiving module, compare the maximum measured pressure value with the pressure threshold, determine and generate a corresponding cleaning mode; and generate a corresponding control signal according to the corresponding cleaning mode and the maximum measured pressure value; A control module is used to receive the control signal sent by the data comparison module, control the speed and direction of rotation of the servo motor, or control the remote transmission module to send alarm information to the user terminal; Remote sending module, used to send alarm information to user terminals; The cleanup pattern is generated as follows: When P1≤P<P2, the cleaning mode generated by the data comparison module is the low-speed mode; When P2≤P<P3, the cleaning mode generated by the data comparison module is the medium speed mode; When P≥P3, the cleaning mode generated by the data comparison module is the high-speed impact mode; When the maximum measured pressure value after three consecutive forward cleanings is compared with the maximum measured pressure value before three consecutive forward cleanings, if the change rate is less than 10%, the cleaning mode generated by the data comparison module is the forward and reverse mode; After the next cleaning is completed in the forward and reverse mode, if the maximum measured pressure value measured is less than 10% lower than the maximum measured pressure value measured last time, the cleaning mode generated by the data comparison module is the alarm mode.

2. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 1 is characterized in that: The base mechanism comprises: A bottom plate having a plurality of slots and a plurality of jacks extending therethrough; The guide plate is fixedly connected to the bottom plate, and the top surface of the guide plate is arranged in a V shape.

3. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 2 is characterized in that: The base mechanism also includes: Two first inserts are both installed on the top surface of the bottom plate; A plurality of drainage holes are all provided through the bottom plate.

4. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 3 is characterized in that: The retaining wall mechanism further comprises: A plurality of plug-in blocks are installed on the bottom surface of the vertical plate and are respectively plugged into and matched with the plurality of slots; A plurality of steel nails are respectively installed on the bottom surfaces of the plurality of insert blocks; The two second inserts are both installed on the vertical plate.

5. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 4 is characterized in that: The base mechanism further comprises two support assemblies and a plurality of anchor rod assemblies, wherein the support assemblies comprise: A fixing rod, wherein a first plug rod and a second plug rod are respectively installed at both ends of the fixing rod, the first plug rod is plugged into and matched with the first plug tube, and the second plug rod is plugged into and matched with the second plug tube.

6. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 5 is characterized in that: The anchor rod assembly comprises: a hollow rod passing through the insertion hole; The limiting head is threadedly connected to the upper end of the hollow rod, and a plurality of slots are provided on the top surface of the limiting head, and the slots are plugged and matched with the first insertion rod.

7. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 6 is characterized in that: The retaining wall mechanism further comprises: Four connecting cylinders are respectively installed on the two sets of cleaning doors; Two limiting rods are plugged into two connecting tubes.

8. The retaining wall for open-pit mine slope protection with pressure monitoring function according to claim 7 is characterized in that: The retaining wall mechanism further comprises: A fixing bracket is installed on a side of the vertical plate away from the distributed optical fiber pressure sensor; The solar panel is mounted on the fixing frame.

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