Automatic monitoring equipment for preventing landslides during foundation pit excavation and its use method

Abstract

The automatic monitoring equipment for preventing landslides during foundation pit excavation of the present invention and its use method are aimed at the problem that the existing monitoring system has a slow identification and response speed for high-risk risks. It includes a fixed rod vertically inserted into the slope soil, a monitoring device arranged along the slope inclination direction, a separation device connected to the top of the fixed 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 signal; the middle part of the support rod of the monitoring device is locked and fixed with a sleeve connecting the top of the fixed rod, the two spirit levels of the monitoring device are symmetrically arranged on both sides of the support rod, the bottom end of the separation device is connected to the top of the fixed rod, and the curled lateral spring-start device and the bottom end of the mask cloth are embedded in the separation device; method of use: when the control system determines that the monitoring signal is abnormal, it triggers the separation device, 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 to fix the slope soil.

Description

Technical Field

[0001] The present 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] During the excavation and construction of 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 in terms of the overall changes in the slopes.

[0003] After the temporary slope appears, there will still be temporary slope loads, dynamic loads from heavy vehicles, and the impact of construction unloading itself during on-site construction. Landslides may even occur. Traditional monitoring methods use a monitoring frequency of once a day, which makes it difficult to quickly identify and respond to high-risk risks. Especially for sudden accidents, the monitoring system reacts slowly, and emergency response 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 for high-risk, which increases the risk factors in 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 same.

[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 spirit level. The support rod is arranged along the slope inclination direction. 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 spirit levels are symmetrically arranged on both sides of the support rod along the axis of the vertical rod.

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

[0009] The separation device has a bottom end connected to the top of the vertical rod of the fixed rod, and the bottom end of the curled side spring-opening device and the masking cloth is embedded in the top of the separation device;

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

[0011] The automatic monitoring device for preventing landslides during foundation pit excavation of the present invention comprises a fixed 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 fixed 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 provided on the top of the fixed 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; the two spirit levels of the monitoring device are symmetrically arranged on both sides of the support rod, and the scale comparison of the calibrated bubble is used to ensure that the support rod is in the correct position. The pole has the same slope as the slope, providing a basis for judging the subsequent monitoring of the slope gradient change; 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, it triggers the separation device, and the protective device is ejected upward and separated from the separation device. The mask cloth is quickly unfolded under the action of the lateral spring-start devices on both sides, fixing the soil within the effective area of ​​the temporary slope and collecting 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 contacts 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 is 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 end of the curled airbag and the mask cloth is 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 fixed pole, 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 first-level rod and a second-level rod that 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.

[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 slope soil. Sleeve the middle of the support rod of the monitoring device into 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. Adjust the tilt direction and angle of the support rod of the monitoring device so that the support rod is consistent with the current slope gradient.

[0021] When the level meter of the monitoring device detects an abnormal change in the slope gradient, 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 invention provides a method for using an automatic monitoring device for preventing landslides during foundation pit excavation, comprising the following steps: inserting the bottom of a fixing rod into the soil of a slope, sleeve-mounting a middle portion of a support rod of a monitoring device on a collar of a connecting sleeve at the top of the fixing rod and locking and fixing it with a nut, connecting the bottom end of a separation device to the top of the fixing rod, and embedding a protective device on the top of the separation device, adjusting the tilt direction and angle of the support rod of the monitoring device so that the support rod is consistent with the current tilt gradient of the slope; when a level meter of the monitoring device detects that the support rod is inconsistent with the slope gradient, a control system determines that an abnormality has occurred in the soil of the slope, triggering the separation device so that the protective device is ejected upward and separated from the separation device, and a mask cloth of the protective device is unfolded under the action of lateral spring-action devices on both sides thereof, fixing the soil within an effective area of ​​the temporary slope and collecting broken soil, thereby minimizing the risk of landslides; utilizing the monitoring device to monitor the slope in real time, dynamically grasping the deformation condition of the slope, and promptly issuing emergency measures when a sudden accident occurs on the slope, thereby reducing the safety risks 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 according to the present invention;

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

[0025] Figure 3 This is a schematic structural diagram of a protective device after deployment according to an embodiment of the present invention;

[0026] Figure 4 FIG. 1 is a schematic structural diagram 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; support rod 21; spirit level 23; 3D scanner 24; AI recognition machine 25; separation device 30; sleeve 32; alarm 34; trigger 35; spring 36; protective device 40; masking cloth 45; lateral spring-opening device 46; fixing buckle 47; airbag 48. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. For ease of description, the terms "upper" and "lower" will be used in the following text in the same direction as in the accompanying drawings, but this does not constitute a limitation of the present invention.

[0030] Combine Figures 1 to 4 The automatic monitoring device for preventing landslides during foundation pit excavation of the present invention is described, and includes:

[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 with a closed conical bottom end. 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. 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 spirit level 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 spirit levels 23 are symmetrically arranged on both sides of the support rod 21 along the vertical rod axis.

[0033] The protective device 40 includes a masking cloth 45, a side spring-opening device 46, and a fixing buckle 47. The two side spring-opening devices 46 are respectively connected to the two sides of the masking cloth 45. The fixing buckles 47 are connected to the corresponding corners of the masking cloth 45. After the side 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 has its bottom end 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 signal.

[0036] The automatic monitoring equipment for preventing landslides during foundation pit excavation of the present invention comprises a fixed rod 10 vertically inserted into the slope soil 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; the two spirit levels 23 of the monitoring device 20 are symmetrically arranged on both sides of the support rod 21, and the scale of the calibration bubble is compared 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-starting device 46 and the masking 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-starting device 46 and the masking 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 masking cloth 45 is quickly unfolded under the action of the lateral spring-starting devices 46 on both sides, fixing the soil within the effective area of ​​the temporary slope and collecting 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, and 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 abuts the bottom end of the protective device 40. After the trigger 35 is triggered, the spring 36 expands under the action of the 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, thereby quickly and timely fixing the temporary slope soil 1.

[0038] like Figure 1As shown, the separation device 30 further includes an alarm 34, which is installed in the sleeve 32 and is 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 emit an audible and visual alarm signal.

[0039] like Figure 3 As shown, the side-activating device 46 includes an airbag 48, a collision sensor, a control module, and an airbag 48 inflation module (not shown). The airbag 48 is fixed to the edge of the masking cloth 45. The uninflated airbag 48 and the masking cloth 45 are curled and secured by a fixing buckle 47. The collision sensor, control module, and airbag 48 inflation module are mounted at the bottom of the airbag 48. The bottom ends of the curled airbag 48 and masking cloth 45 are embedded in the top of the sleeve 32 of the separation device 30. When the protective device 40 is activated, the collision sensor quickly senses the force and direction of the impact and transmits a signal to the control module. The control module sends a command to the airbag 48 inflation device, triggering a chemical reaction that rapidly produces a large amount of gas. The fixing buckle 47 opens, and the airbag 48 quickly inflates. The thrust of the airbag 48 quickly and powerfully deploys the masking cloth 45.

[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 3D scanners 24, symmetrically positioned on either side of the support rod 21. The scanners 24 are connected to the control system. The scanners 24 periodically scan slope deformation, allowing for settings for daily deformation changes and cumulative change rates to enhance monitoring accuracy. This embodiment utilizes a miniature 3D scanning device.

[0042] like Figure 1 As shown, the monitoring device 20 also includes multiple AI recognition machines 25, which are symmetrically arranged on both sides of the support rod 21 and located outside the 3D scanner 24. 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, for a total of six AI recognition machines 25. These machines are used to perform all-round real-time monitoring of both sides of the slope and the slope below. The monitoring content includes whether there is deformation exceeding the daily change amount, the presence of surrounding loads, and the presence of moving vehicles. If an abnormality occurs, an early warning is issued through the control system's linked alarm 34, and relevant information is sent to management personnel.

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

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

[0045] Combine Figures 1 to 4 The following describes the method for using the automatic monitoring device for preventing landslides during foundation pit excavation.

[0046] Insert the bottom of the fixing rod 10 into the slope soil 1. The middle part of the support rod 21 of the monitoring device 20 is placed on the collar of the connecting sleeve 14 at the top of the fixing rod 10 and is locked with a nut. Connect the bottom end of the separation device 30 to the top of the fixing rod 10. The protective device 40 is embedded in the top of the separation device 30. Adjust the inclination direction and angle of the support rod 21 of the monitoring device 20 so that the support rod 21 is consistent with the current inclination of the slope.

[0047] When the level meter 23 of the monitoring device 20 detects an abnormal change in the slope gradient, 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. The masking cloth 45 of the protective device 40 is unfolded under the action of the lateral spring-action devices 46 on both sides thereof. The masking 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 fixed 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 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; when the level meter 23 of the monitoring device 20 monitors that the support rod 21 is different from the slope gradient, When this happens, the control system determines that the slope soil 1 is abnormal, and the control system triggers the separation device 30, so that the protective device 40 is ejected upward 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. 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. When a sudden accident occurs on the slope, the current emergency measures can be issued in time to reduce the safety risks brought by the slope landslide.

[0049] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians 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 spirit level. The support rod is arranged along the slope inclination direction. 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 spirit levels are symmetrically arranged on both sides of the support rod along the axis of the vertical rod. The protective device includes a masking cloth, a side spring-opening device, and a fixing buckle. The two side spring-opening devices are respectively connected to the two sides of the masking cloth, and the multiple fixing buckles are connected to the corresponding corners of the masking cloth. After the side spring-opening devices and the masking cloth are curled, they are temporarily fixed by the fixing buckles corresponding to the corners. The separation device has a bottom end connected to the top of the vertical rod of the fixed rod, and the bottom end of the curled side spring-opening device and the masking cloth is embedded in the top of the separation device; a control system, which is signal-connected to the two levels and the separation device; 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 contacts the trigger, and the other end of the spring contacts the bottom end of the protective device; 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 end of the curled airbag and mask cloth is embedded in the top of the sleeve of the separation device.

2. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 1 is characterized in that: The separation device also includes an alarm, which is installed in the sleeve and is connected to the control system signal.

3. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 2 is characterized in that: The monitoring device further comprises two three-dimensional scanners, which are symmetrically arranged on both sides of the support rod and are connected to the control system signal.

4. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 3 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 located outside the three-dimensional scanner. The AI ​​recognition machines are connected to the control system signal.

5. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 4 is characterized in that: It also includes a power supply arranged in the fixed pole, and the power supply is electrically connected to the alarm, the three-dimensional scanner and the AI ​​recognition machine.

6. The automatic monitoring device for preventing landslides during foundation pit excavation according to claim 1 is characterized in that: The vertical rod is composed of a first-level rod and a second-level rod that 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.

7. The method for using the automatic monitoring device for preventing landslides during foundation pit excavation according to any one of claims 1 to 6, characterized in that: Here are the steps: Insert the bottom of the fixed rod into the slope soil. Sleeve the middle of the support rod of the monitoring device into 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. Adjust the tilt direction and angle of the support rod of the monitoring device so that the support rod is consistent with the current slope gradient. When the level meter of the monitoring device detects an abnormal change in the slope gradient, 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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