Automatic monitoring equipment for preventing landslide in foundation pit excavation process and use method thereof

Abstract

According to the automatic monitoring equipment for landslide prevention in the foundation pit excavation process and the use method of the automatic monitoring equipment, the problem that an existing monitoring system is low in high risk recognition and response speed is solved. The device comprises a fixing rod vertically inserted into a slope soil body, a monitoring device arranged in the slope inclination direction, a separation device connected to the top end of the fixing rod, a protection device embedded in the top of the separation device, and a control system in signal connection with the monitoring device and the separation device. The middle of a supporting rod of the monitoring device is locked and fixed to a connecting sleeve at the top of the fixing rod, two gradienters of the monitoring device are symmetrically arranged on the two sides of the supporting rod, the bottom end of a separating device is connected to the top of the fixing rod, and a curled lateral bouncing device and the bottom end of shielding cloth are embedded in the separating device; the using method comprises the steps that when the control system judges that a monitoring signal is abnormal, the separation device is triggered, the protection device is ejected upwards and is separated from the separation device, and the shielding cloth is rapidly unfolded under the action of the lateral ejection devices on the two sides to fix a slope soil body.

Description

Technical Field

[0001] The invention relates to the field of building engineering equipment and construction technology, and in particular to an automatic monitoring device for preventing landslides during foundation pit excavation and a use method thereof. Background Art

[0002] In the process of excavating foundation pits using temporary slope reduction, it is usually necessary to use instruments such as total stations to monitor the artificial settlement of temporary slopes. However, the existing monitoring methods are relatively one-sided and localized for the overall changes of the slopes.

[0003] After the temporary slope appears, there will still be temporary slope loads, dynamic loads from heavy vehicles, the impact of construction unloading itself, etc. during the on-site construction process, and even landslides may occur. The traditional monitoring method uses a monitoring frequency of once a day, which makes it difficult to quickly identify and respond to high-risk risks. Especially for sudden unexpected situations, the monitoring system reacts slowly, and emergency measures require a long preparation time, which increases the risk factors of foundation pit construction. Summary of the invention

[0004] The existing monitoring system has a slow identification and response speed to high-risk, which increases the risk factors of foundation pit construction. The purpose of the present invention is to provide an automatic monitoring device for preventing landslides during foundation pit excavation and a method for using the device.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an automatic monitoring device for preventing landslides during foundation pit excavation, comprising:

[0006] The fixing rod is composed of a vertical rod and a connecting sleeve. The vertical rod is a cylindrical hollow steel pipe with a closed conical bottom. The bottom of the vertical rod is vertically inserted into the slope soil. The connecting sleeve is sleeved on the top of the vertical rod. A rotatable collar is provided on the side of the connecting sleeve.

[0007] The monitoring device includes a support rod and a level meter. The support rod is arranged along the inclination direction of the slope. The middle part of the support rod is sleeved on the collar of the connecting sleeve and is locked and fixed by a nut. Two level meters are symmetrically arranged on both sides of the support rod along the axis of the vertical rod.

[0008] The protective device includes a mask cloth, a lateral spring-opening device and a fixing buckle, wherein two lateral spring-opening devices are respectively connected to two sides of the mask cloth, and a plurality of fixing buckles are connected to corresponding corners of the mask cloth. After the lateral spring-opening devices and the mask cloth are curled, they are temporarily fixed by the fixing buckles corresponding to the corners.

[0009] A separation device, the bottom end of which is connected to the top of the vertical rod of the fixed rod, and the bottom end of the curled lateral spring-opening device and the masking cloth are embedded in the top of the separation device;

[0010] The control system is connected to the two levels and the separation device by signals.

[0011] The automatic monitoring device for preventing landslides during foundation pit excavation of the present invention comprises a fixing rod vertically inserted into the soil of the slope, a monitoring device arranged along the inclination direction of the slope, a separation device connected to the top of the fixing rod, a protective device embedded in the top of the separation device, and a control system connected to the monitoring device and the separation device by signal; a connecting sleeve is sleeved on the top of the fixing rod, and the middle part of the support rod of the monitoring device is locked and fixed with the connecting sleeve, so that the construction personnel can flexibly adjust the inclination angle of the support rod relative to the slope; two level gauges of the monitoring device are symmetrically arranged on both sides of the support rod, and the scale comparison of the calibration bubble is used to ensure that the support rod is aligned with the slope. The slope of the pole is consistent with that of the slope, providing a basis for subsequent monitoring of the slope gradient changes; the bottom end of the separation device is connected to the top of the vertical pole of the fixed pole, and the bottom ends of the curled lateral spring-start device and the mask cloth are embedded in the top of the separation device, and the fixing buckle is used to fix the curled lateral spring-start device and the mask cloth; when the control system determines that the level monitoring signal is abnormal, the separation device is triggered, the protective device is ejected upward and separated from the separation device, and the mask cloth is quickly unfolded under the action of the lateral spring-start devices on both sides, so as to fix the soil within the effective area of ​​the temporary slope and collect the broken soil, thereby reducing the risk of landslide.

[0012] Furthermore, the separation device includes a sleeve, a trigger and a spring installed in the sleeve, the bottom end of the sleeve is connected to the vertical rod of the fixed rod, the bottom end of the protective device is embedded in the top end of the sleeve, the trigger is connected to the control system signal, one end of the compressed spring is in contact with the trigger, and the other end thereof is against the bottom end of the protective device.

[0013] Furthermore, the separation device also includes an alarm, which is installed in the sleeve and connected to the control system signal.

[0014] Furthermore, the side pop-up device includes an airbag, a collision sensor, a control module and an airbag inflation module. The airbag is fixed to the edge of the mask cloth. The uninflated airbag and the mask cloth are curled and fixed by a fixing buckle. The collision sensor, control module and airbag inflation module are installed at the bottom of the airbag. The bottom ends of the curled airbag and the mask cloth are embedded in the top of the sleeve of the separation device.

[0015] Furthermore, the monitoring device also includes two three-dimensional scanners, which are symmetrically arranged on both sides of the support rod, and the three-dimensional scanners are connected to the control system signal.

[0016] Furthermore, the monitoring device also includes a plurality of AI recognition machines, which are symmetrically arranged on both sides of the support rod, and the AI ​​recognition machines are located outside the three-dimensional scanner, and the AI ​​recognition machines are connected to the control system signal.

[0017] Furthermore, it also includes a power supply arranged in the fixing rod, and the power supply is electrically connected to the alarm, the three-dimensional scanner and the AI ​​recognition machine.

[0018] Furthermore, the vertical rod is composed of a primary rod and a secondary rod which are connected to each other. The primary rod is vertically anchored in the slope soil, and the top of the primary rod is exposed on the surface of the slope soil. The secondary rod is bolted to the top of the primary rod.

[0019] In addition, the present invention also provides a method for using an automatic monitoring device for preventing landslides during foundation pit excavation, the steps of which are as follows:

[0020] Insert the bottom of the fixed rod into the soil of the slope, sleeve the middle part of the support rod of the monitoring device on the collar of the connecting sleeve at the top of the fixed rod and lock it with a nut, connect the bottom end of the separation device to the top of the fixed rod, embed the protective device on the top of the separation device, and adjust the inclination direction and angle of the support rod of the monitoring device so that the support rod is consistent with the current inclination of the slope;

[0021] When the level meter of the monitoring device detects an abnormal change in the slope, the control system receives the signal and triggers the separation device. The protective device is ejected and separated from the separation device. The mask cloth of the protective device is unfolded under the action of the lateral spring-action devices on both sides. The mask cloth fixes the soil within the effective area of ​​the temporary slope and collects the broken soil.

[0022] The method for using the automatic monitoring device for preventing landslides during foundation pit excavation of the present invention comprises the following steps: inserting the bottom of the fixing rod into the soil of the slope, sleeve-mounting the middle part of the support rod of the monitoring device on the collar of the connecting sleeve at the top of the fixing rod and locking and fixing it with a nut, connecting the bottom end of the separation device to the top of the fixing rod, embedding the protection device on the top of the separation device, adjusting the inclination direction and angle of the support rod of the monitoring device so that the support rod is consistent with the current inclination gradient of the slope; when the level meter of the monitoring device monitors that the support rod is inconsistent with the gradient of the slope, the control system determines that an abnormality has occurred in the soil of the slope, triggering the separation device, causing the protection device to eject upward and separate from the separation device, and the mask cloth of the protection device is unfolded under the action of the lateral spring-starting devices on both sides thereof, fixing the soil within the effective area of ​​the temporary slope and collecting the broken soil of the temporary slope with the mask cloth, thereby reducing the danger of landslide as much as possible; using the monitoring device to monitor the slope in real time, dynamically grasping the deformation condition of the slope, and being able to take immediate emergency measures in time when a sudden accident occurs on the slope, thereby reducing the safety risk caused by the slope landslide. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of an automatic monitoring device for preventing landslides during foundation pit excavation of the present invention;

[0024] Figure 2It is a schematic diagram of a protective device after being separated from a fixing rod according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the protective device after unfolding according to one embodiment of the present invention;

[0026] Figure 4 FIG. 1 is a schematic diagram of the structure of a monitoring device according to an embodiment of the present invention.

[0027] The numbers in the figure are as follows:

[0028] Slope soil 1; fixing rod 10; primary rod 11; secondary rod 12; connecting sleeve 14; monitoring device 20; supporting rod 21; level 23; three-dimensional scanner 24; AI recognition machine 25; separation device 30; sleeve 32; alarm 34; trigger 35; spring 36; protective device 40; mask cloth 45; lateral spring-opening device 46; fixing buckle 47; airbag 48. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this cannot be a limitation of the technical solution of the present invention.

[0030] Combination Figures 1 to 4 The automatic monitoring device for preventing landslide during foundation pit excavation of the present invention is described, and it comprises:

[0031] The fixing rod 10 is composed of a vertical rod and a connecting sleeve 14. The vertical rod is a cylindrical hollow steel pipe, and its bottom end is a closed cone. The bottom end of the vertical rod is vertically inserted into the slope soil 1. The connecting sleeve 14 is sleeved on the top of the vertical rod, and a rotatable ring is provided on the side of the connecting sleeve 14.

[0032] The monitoring device 20 includes a support rod 21 and a level meter 23. The support rod 21 is arranged along the slope inclination direction. The middle part of the support rod 21 is sleeved on the collar of the connecting sleeve 14 and is locked and fixed by a nut. Two level meters 23 are symmetrically arranged on both sides of the support rod 21 along the axis of the vertical rod.

[0033] The protective device 40 includes a masking cloth 45, a lateral spring-opening device 46 and a fixing buckle 47. Two lateral spring-opening devices 46 are respectively connected to two sides of the masking cloth 45, and a plurality of fixing buckles 47 are connected to corresponding corners of the masking cloth 45. After the lateral spring-opening devices 46 and the masking cloth 45 are curled, they are temporarily fixed by the fixing buckles 47 corresponding to the corners.

[0034] The separation device 30, the bottom end of the separation device 30 is connected to the top of the vertical rod of the fixed rod 10, and the bottom ends of the curled side spring-opening device 46 and the masking cloth 45 are embedded in the top of the separation device 30;

[0035] A control system is connected to the two levels 23 and the separation device 30 by signals.

[0036] The automatic monitoring device for preventing landslides during foundation pit excavation of the present invention comprises a fixed rod 10 vertically inserted into a slope soil body 1, a monitoring device 20 arranged along the inclination direction of the slope, a separation device 30 connected to the top of the fixed rod 10, a protective device 40 embedded in the top of the separation device 30, and a control system connected to the monitoring device 20 and the separation device 30 by signal; a connecting sleeve 14 is sleeved on the top of the fixed rod 10, and the middle part of the support rod 21 of the monitoring device 20 is locked and fixed with the connecting sleeve 14, so that the construction personnel can flexibly adjust the inclination angle of the support rod 21 relative to the slope; two level gauges 23 of the monitoring device 20 are symmetrically arranged on both sides of the support rod 21, and the scale comparison of the calibration bubble is used to confirm the inclination angle of the support rod 21 relative to the slope. The support rod 21 is kept consistent with the slope gradient, providing a basis for subsequent monitoring of slope gradient changes; the bottom end of the separation device 30 is connected to the top of the vertical rod of the fixed rod 10, and the bottom ends of the curled lateral spring-start device 46 and the mask cloth 45 are embedded in the top of the separation device 30, and the fixing buckle 47 is used to fix the curled lateral spring-start device 46 and the mask cloth 45; when the control system determines that the monitoring signal of the level meter 23 is abnormal, the separation device 30 is triggered, the protective device 40 is ejected upward and separated from the separation device 30, and the mask cloth 45 is quickly unfolded under the action of the lateral spring-start devices 46 on both sides, so as to fix the soil within the effective area of ​​the temporary slope and collect the broken soil, thereby reducing the risk of landslide.

[0037] like Figure 1 As shown, the separation device 30 includes a sleeve 32, a trigger 35 and a spring 36 installed in the sleeve 32, the bottom end of the sleeve 32 is connected to the vertical rod of the fixing rod 10, the bottom end of the protective device 40 is embedded in the top end of the sleeve 32, the trigger 35 is connected to the control system signal, one end of the compressed spring 36 contacts the trigger 35, and the other end thereof abuts against the bottom end of the protective device 40. After the trigger 35 is triggered, the spring 36 opens under the action of elastic force, pushing the protective device 40 upward to automatically separate from the sleeve 32 of the separation device 30. The separation device 30 is remotely triggered by the control system, pushing the protective device 40 to automatically eject and separate from the supporting structure below it, thereby quickly and timely fixing the temporary slope soil 1.

[0038] like Figure 1As shown, the separation device 30 also includes an alarm 34, which is installed in the sleeve 32 and connected to the control system signal. When the control system determines that the monitoring signal of the level meter 23 is abnormal, the alarm 34 is controlled to send out an audible and visual alarm signal.

[0039] like Figure 3 As shown, the side spring-opening device 46 includes an airbag 48, a collision sensor, a control module and an airbag 48 inflation module (not shown in the figure). The airbag 48 is fixed to the edge of the mask cloth 45. The uninflated airbag 48 and the mask cloth 45 are curled and fixed by a fixing buckle 47. The collision sensor, the control module and the airbag 48 inflation module are installed at the bottom of the airbag 48. The bottom ends of the curled airbag 48 and the mask cloth 45 are embedded in the top of the sleeve 32 of the separation device 30. In the process of the protective device 40 being spring-opened, the collision sensor quickly senses the force and direction of the impact and transmits the signal to the control module. The control module sends a command to the airbag 48 inflation device, triggering a chemical reaction and quickly generating a large amount of gas. The fixing buckle 47 opens, the airbag 48 is quickly inflated, and the mask cloth 45 is quickly and powerfully unfolded by the thrust of the airbag 48.

[0040] like Figure 3 As shown, the fixing buckles 47 at corresponding positions in this embodiment can be connected by means of magnetism or the like, and can be quickly connected or disconnected.

[0041] like Figure 1 As shown, the monitoring device 20 also includes two three-dimensional scanners 24, which are symmetrically arranged on both sides of the support rod 21, and the three-dimensional scanners 24 are connected to the control system signal. The three-dimensional scanner 24 is used to scan the slope deformation at a regular time, and the daily change amount and cumulative change rate of the deformation can be set to improve the monitoring accuracy. This embodiment uses a miniature three-dimensional scanning device.

[0042] like Figure 1 As shown, the monitoring device 20 also includes a plurality of AI recognition machines 25, which are symmetrically arranged on both sides of the support rod 21, and the AI ​​recognition machines 25 are located outside the three-dimensional scanner 24, and the AI ​​recognition machines 25 are connected to the control system signal. In this embodiment, three AI recognition machines 25 are symmetrically arranged on both sides of the support rod 21, and a total of six AI recognition machines 25 are used to perform all-round real-time monitoring of both sides and below the slope. The monitoring content includes whether there is deformation exceeding the daily change amount, whether there is load in the surrounding area, whether there is a moving vehicle, etc. If an abnormal situation occurs, an early warning is issued through the control system linkage alarm 34, and relevant information is pushed to the management personnel.

[0043] like Figure 1As shown, the vertical rod is composed of a primary rod 11 and a secondary rod 12 which are connected to each other. The primary rod 11 is vertically anchored in the slope soil 1, and the top of the primary rod 11 is exposed on the surface of the slope soil 1, and is used to fix the automatic monitoring equipment in the deep soil of the temporary slope, playing a primary fixing role; the secondary rod 12 is bolted to the top of the primary rod 11, and is used to fix the automatic monitoring equipment again in the surface soil of the temporary slope, playing a secondary fixing role.

[0044] In addition, the automatic monitoring device for preventing landslides during foundation pit excavation of the present invention also includes a power supply arranged in the fixed rod 10, and the power supply is electrically connected to the alarm 34, the three-dimensional scanner 24 and the AI ​​recognition machine 25, and is used to power the automatic monitoring device as a whole.

[0045] Combination Figures 1 to 4 The method for using the automatic monitoring device for preventing landslides during foundation pit excavation of the present invention is described, and the specific steps are as follows:

[0046] Insert the bottom of the fixed rod 10 into the slope soil 1, the middle part of the support rod 21 of the monitoring device 20 is sleeved on the collar of the top connecting sleeve 14 of the fixed rod 10 and is locked and fixed by a nut, the bottom end of the separation device 30 is connected to the top of the fixed rod 10, and the protective device 40 is embedded in the top of the separation device 30, and the inclination direction and angle of the support rod 21 of the monitoring device 20 are adjusted so that the support rod 21 is consistent with the current inclination gradient of the slope;

[0047] When the level meter 23 of the monitoring device 20 detects an abnormal change in the slope, the control system receives a signal and triggers the separation device 30, the protective device 40 is ejected and separated from the separation device 30, and the mask cloth 45 of the protective device 40 is unfolded under the action of the lateral spring-action devices 46 on both sides thereof, and the mask cloth 45 fixes the soil within the effective area of ​​the temporary slope and collects the broken soil.

[0048] The method for using the automatic monitoring device for preventing landslides during foundation pit excavation of the present invention is as follows: the bottom of the fixing rod 10 is inserted into the slope soil 1, the middle part of the support rod 21 of the monitoring device 20 is sleeved on the collar of the connecting sleeve 14 at the top of the fixing rod 10 and is locked and fixed by a nut, the bottom end of the separation device 30 is connected to the top of the fixing rod 10, and the protection device 40 is embedded in the top of the separation device 30, and the inclination direction and angle of the support rod 21 of the monitoring device 20 are adjusted so that the support rod 21 is consistent with the current inclination gradient of the slope; when the level meter 23 of the monitoring device 20 monitors that the support rod 21 is different from the slope gradient, When the control system determines that the slope soil 1 is abnormal, the control system triggers the separation device 30, so that the protection device 40 is ejected upward and separated from the separation device 30, and the mask cloth 45 of the protection device 40 is unfolded under the action of the lateral spring-starting devices 46 on both sides thereof, and the mask cloth 45 fixes the soil within the effective area of ​​the temporary slope and collects the broken soil, thereby reducing the risk of landslide as much as possible; the monitoring device 20 is used to monitor the slope in real time, and the deformation status of the slope is dynamically grasped, so that when a sudden accident occurs on the slope, the current emergency measures can be issued in time to reduce the safety risks caused by the slope landslide.

[0049] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of the claims.

Claims

1. An automatic monitoring device for preventing landslides during foundation pit excavation, characterized in that: include: The fixing rod is composed of a vertical rod and a connecting sleeve. The vertical rod is a cylindrical hollow steel pipe with a closed conical bottom. The bottom of the vertical rod is vertically inserted into the slope soil. The connecting sleeve is sleeved on the top of the vertical rod. A rotatable collar is provided on the side of the connecting sleeve. The monitoring device includes a support rod and a level meter. The support rod is arranged along the inclination direction of the slope. The middle part of the support rod is sleeved on the collar of the connecting sleeve and is locked and fixed by a nut. Two level meters are symmetrically arranged on both sides of the support rod along the axis of the vertical rod. The protective device includes a mask cloth, a lateral spring-opening device and a fixing buckle, wherein two lateral spring-opening devices are respectively connected to two sides of the mask cloth, and a plurality of fixing buckles are connected to corresponding corners of the mask cloth. After the lateral spring-opening devices and the mask cloth are curled, they are temporarily fixed by the fixing buckles corresponding to the corners. A separation device, the bottom end of which is connected to the top of the vertical rod of the fixed rod, and the bottom end of the curled lateral spring-opening device and the masking cloth are embedded in the top of the separation device; The control system is connected to the two levels and the separation device by signals.

2. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 1 is characterized in that: The separation device includes a sleeve, a trigger and a spring installed in the sleeve, the bottom end of the sleeve is connected to the vertical rod of the fixed rod, the bottom end of the protective device is embedded in the top end of the sleeve, the trigger is connected to the control system signal, one end of the compressed spring is in contact with the trigger, and the other end thereof is against the bottom end of the protective device.

3. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 2 is characterized in that: The separation device also includes an alarm, which is installed in the sleeve and connected to the control system signal.

4. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 1 is characterized in that: The side pop-up device includes an airbag, a collision sensor, a control module and an airbag inflation module. The airbag is fixed to the edge of the mask cloth. The uninflated airbag and the mask cloth are curled and fixed by a fixing buckle. The collision sensor, the control module and the airbag inflation module are installed at the bottom of the airbag. The bottom ends of the curled airbag and the mask cloth are embedded in the top of the sleeve of the separation device.

5. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 1 is characterized in that: The monitoring device also includes two three-dimensional scanners, which are symmetrically arranged on both sides of the support rod, and the three-dimensional scanners are connected to the control system signal.

6. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 5 is characterized by: The monitoring device also includes a plurality of AI recognition machines, which are symmetrically arranged on both sides of the support rod, and the AI ​​recognition machines are located outside the three-dimensional scanner, and the AI ​​recognition machines are connected to the control system signal.

7. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 6 is characterized by: It also includes a power supply arranged in the fixed pole, and the power supply is electrically connected with the alarm, the three-dimensional scanner and the AI ​​recognition machine.

8. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 1 is characterized by: The vertical rod is composed of a first-level rod and a second-level rod which are connected to each other. The first-level rod is vertically anchored in the slope soil, and the top of the first-level rod is exposed on the surface of the slope soil. The second-level rod is bolted to the top of the first-level rod.

9. The method for using the automatic monitoring device for preventing landslides during foundation pit excavation according to any one of claims 1 to 8, characterized in that: Here are the steps: Insert the bottom of the fixed rod into the soil of the slope, sleeve the middle part of the support rod of the monitoring device on the collar of the connecting sleeve at the top of the fixed rod and lock it with a nut, connect the bottom end of the separation device to the top of the fixed rod, embed the protective device on the top of the separation device, and adjust the inclination direction and angle of the support rod of the monitoring device so that the support rod is consistent with the current inclination of the slope; When the level meter of the monitoring device detects an abnormal change in the slope, the control system receives the signal and triggers the separation device. The protective device is ejected and separated from the separation device. The mask cloth of the protective device is unfolded under the action of the lateral spring-action devices on both sides. The mask cloth fixes the soil within the effective area of ​​the temporary slope and collects the broken soil.

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