Early warning equipment and early warning method for loess foundation collapsibility

Abstract

The loess foundation collapse early warning equipment comprises a monitoring device and an information processing terminal in communication connection with the monitoring device, the monitoring device comprises a vertical measuring rod, and the lower end of the vertical measuring rod is embedded in a corresponding position according to engineering monitoring requirements; the top end of the vertical measuring rod is provided with a first monitoring device, the middle end of the vertical measuring rod is provided with a second monitoring device, and the lower end of the vertical measuring rod is provided with a third monitoring device under the ground; the first monitoring device comprises a first induction device and a first communication device, the second monitoring device comprises a second induction device and a second communication device, and the third monitoring device comprises a third induction device and a third communication device. Through the information processing terminal, once the collected information exceeds a warning threshold value, the alarm is started to give an alarm in time, the position of a collapsing risk area is reported, and workers are required to take related measures to prevent loess collapsing.

Description

Technical Field

[0001] The invention belongs to the technical field of loess foundation collapse, and in particular relates to a loess foundation collapse early warning device and an early warning method. Background Art

[0002] When loess is soaked in water under a certain pressure, its structure is rapidly destroyed and significant additional settlement occurs, which is called collapsibility. The most fundamental reason for the collapse of loess is that it has special components and structures that are conducive to collapse due to obvious weakening of bonds when it comes into contact with water. Collapsibility is a special engineering property of loess. If the loess foundation produces excessive collapse deformation under water conditions, causing foundation settlement, especially uneven settlement, it will cause the building to tilt, crack or even collapse, affecting normal use. Loess collapse is sudden and catastrophic. In order to prevent disasters caused by loess collapse, it is urgent to invent early warning methods. Summary of the invention

[0003] The present invention provides a loess foundation subsidence early warning device and an early warning method, which are used to solve the problems raised by the background technology.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a loess foundation subsidence early warning device, comprising: a monitoring device and an information processing terminal that are communicatively connected to the monitoring device, the monitoring device comprising a vertical measuring rod, the lower end of the vertical measuring rod is buried in a corresponding position according to the engineering monitoring requirements; a first monitoring device is arranged at the top of the vertical measuring rod, a second monitoring device is arranged at the middle end of the vertical measuring rod, and a third monitoring device is arranged at the lower end of the vertical measuring rod below the ground; the first monitoring device comprises a first sensing device and a first communication device, the second monitoring device comprises a second sensing device and a second communication device, and the third monitoring device comprises a third sensing device and a third communication device.

[0005] Preferably, the first sensing device, the second sensing device and the third sensing device are all provided with a pressure sensor and a humidity sensor.

[0006] Preferably, the first communication device, the second communication device and the third communication device are all provided with a positioning node and a communicator.

[0007] Preferably, the information processing terminal is used to display warning location information, an alarm is installed on the outside of the information processing terminal, and a battery is installed inside the information processing terminal.

[0008] Preferably, the information processing terminal includes a communication module and a data processing module; the communication module is a wireless receiver for obtaining underground soil humidity and pressure information in real time; the data processing module is used to convert humidity into water content, and the conversion relationship is soil humidity (%) = soil moisture content (%) × dry weight.

[0009] An early warning method for loess foundation collapse early warning equipment comprises the following steps:

[0010] Step S1: collecting geological information and location information of the corresponding underground area in real time through the first monitoring device, the second monitoring device and the third monitoring device, and transmitting the information to the information processing terminal;

[0011] Step S2: Analyze the data through the information processing terminal to determine whether there is a foundation settlement risk;

[0012] Step S3: When the risk of foundation collapse and deformation is detected, the alarm of the information processing terminal sounds an alarm. In case of pressure warning, a short sound and flashing light alarm is issued; in case of water content warning, a long sound and a long light alarm is issued.

[0013] Preferably, the step 1 specifically comprises the following steps:

[0014] Step S11: using the pressure sensors and humidity sensors of the first sensing device, the second sensing device, and the third sensing device to monitor the pressure and humidity information of the soil at the location;

[0015] Step S12: The pressure and humidity information and the location information collected by the first sensing device, the second sensing device, and the third sensing device are transmitted to the information processing terminal through the positioning nodes and the communicator of the first communication device, the second communication device, and the third communication device.

[0016] Preferably, the step 2 specifically comprises the following steps:

[0017] Step S21: the information processing terminal acquisition module collects the foundation soil information and location information transmitted by the positioning nodes and communicators of the first communication device, the second communication device, and the third communication device, and pre-processes the humidity information in the foundation soil information into moisture content;

[0018] Step S22: Compare and analyze the pressure collected by the information processing terminal with the collapsible starting pressure corresponding to the moisture content after preprocessing; if the preset pressure threshold is not reached, proceed to step S23; if the preset pressure threshold is reached, execute step S3;

[0019] Step S23: Compare the moisture content collected by the information processing terminal with the initial moisture content of the collapsible under the pressure conditions collected in step S21: if the moisture content threshold is not reached, repeat step S1; if the moisture content threshold is reached, execute step S3.

[0020] Preferably, the information processing terminal in step S22 and step S23 presets the overall evaluation index for the pressure threshold and moisture content threshold at different positions of the foundation where the loess foundation collapse warning device is located according to the basic information of the loess at the foundation where the loess foundation collapse warning device is buried, the collapse starting conditions under various factors and the building specifications, and after comparing the information transmitted inside the foundation with the preset thresholds at different positions, issues a yes or no signal to execute step S3.

[0021] Beneficial effects of the present invention:

[0022] The present invention uses an information processing terminal to monitor the geological conditions of corresponding underground locations in real time, and compares data with thresholds based on the starting conditions for subsidence under the corresponding conditions to determine whether there is a risk of foundation settlement. Once the information collected through the information processing terminal exceeds the warning threshold, the alarm is activated to promptly sound an alarm, and the location of the subsidence risk area is reported, requiring staff to take relevant measures to prevent loess subsidence. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of the loess foundation collapse warning device in the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the loess foundation collapse warning device in the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 A schematic diagram of the underground installation position of the monitoring device of the loess foundation subsidence early warning device in the present invention;

[0026] Figure 4 The present invention is a flowchart of the loess foundation subsidence early warning method.

[0027] In the accompanying drawings: information processing terminal 1, alarm module 2, information collection module 3, analysis and evaluation module 4, battery 5, display screen 6, alarm 7, vertical measuring rod 8, first sensing device 9, first communication device 10, second sensing device 11, second communication device 12, third communication device 13, third sensing device 14, first monitoring device 15, second monitoring device 16, third monitoring device 17, monitoring device 18. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not necessary. In addition, for the purpose of simplifying the illustration, some conventional structures and components will be depicted in a simple schematic manner in the illustration.

[0029] Embodiment 1:

[0030] like Figure 1-3 As shown, the present invention provides an embodiment of a loess foundation subsidence early warning device, comprising: a monitoring device 18 and an information processing terminal 1 which are communicatively connected to the monitoring device 18, the monitoring device 18 comprising a vertical measuring rod 8, the lower end of the vertical measuring rod 8 being buried in a corresponding position according to engineering monitoring requirements; a first monitoring device 15 is arranged at the top of the vertical measuring rod 8, a second monitoring device 16 is arranged at the middle end of the vertical measuring rod 8, and a third monitoring device 17 is arranged at the lower end of the vertical measuring rod 8 below the ground; the first monitoring device 15 comprises a first sensing device 9 and a first communication device 10, the second monitoring device 16 comprises a second sensing device 11 and a second communication device 12, and the third monitoring device 17 comprises a third sensing device 14 and a third communication device 13.

[0031] As mentioned above, the information processing terminal 1 is located on the ground. The information processing terminal 1 may include an alarm module 2, an information collection module 3, and an analysis and evaluation module 4. The alarm module 2 is used to trigger the alarm 7. The information collection module 3 is used to collect signals from the pressure sensors and humidity sensors of the first sensing device 9, the second sensing device 11, and the third sensing device 14, and receive the geological information and location information of the corresponding underground area collected in real time by the first monitoring device 15, the second monitoring device 16, and the third monitoring device 17. The analysis and evaluation module 4 is used to evaluate the received signals, geological information, and location information.

[0032] Furthermore, the first sensing device 9, the second sensing device 11, and the third sensing device 14 are all provided with a pressure sensor and a humidity sensor. The pressure sensor is used to receive pressure information, and the humidity sensor is used to receive humidity information.

[0033] Furthermore, the first communication device 10, the second communication device 12, and the third communication device 13 are all provided with a positioning node and a communicator.

[0034] Furthermore, the information processing terminal 1 is used to display the warning location information, an alarm 7 is installed outside the information processing terminal 1, and a battery 5 is installed inside the information processing terminal 1. The battery 5 supplies power to the information processing terminal 1.

[0035] Furthermore, the information processing terminal 1 includes a communication module and a data processing module; the communication module is a wireless receiver for obtaining underground soil moisture and pressure information in real time; the data processing module is used to convert humidity to moisture content, and the conversion relationship is soil moisture % = soil moisture content % × dry weight.

[0036] Embodiment 2:

[0037] The present invention also provides another embodiment of a warning method of a loess foundation collapse warning device, comprising the following steps:

[0038] Step S1: collecting geological information and location information of the corresponding underground area in real time through the first monitoring device 15, the second monitoring device 16 and the third monitoring device 17, and transmitting the information to the information processing terminal 1;

[0039] Furthermore, the step 1 specifically includes the following steps:

[0040] Step S11: using the pressure sensors and humidity sensors of the first sensing device 9, the second sensing device 11 and the third sensing device 14 to monitor the pressure and humidity information of the soil at the location;

[0041] Step S12: The pressure and humidity information and the location information collected by the first sensing device 9 , the second sensing device 11 , and the third sensing device 14 are transmitted to the information processing terminal 1 through the positioning nodes and communicators of the first communication device 10 , the second communication device 12 , and the third communication device 13 .

[0042] Step S2: Analyze the data through the information processing terminal 1 to determine whether there is a risk of foundation settlement;

[0043] Furthermore, the step 2 specifically includes the following steps:

[0044] Step S21: the acquisition module of the information processing terminal 1 collects the foundation soil information and position information transmitted by the positioning nodes and communicators of the first communication device 10, the second communication device 12, and the third communication device 13, and pre-processes the humidity information in the foundation soil information into moisture content;

[0045] Step S22: Compare and analyze the pressure collected by the information processing terminal 1 with the collapsible starting pressure corresponding to the moisture content after preprocessing; if the preset pressure threshold is not reached, proceed to step S23; if the preset pressure threshold is reached, execute step S3;

[0046] Step S23: Compare the moisture content collected by the information processing terminal 1 with the initial moisture content of the collapsible under the pressure conditions collected in step S21: if the moisture content threshold is not reached, repeat step S1; if the moisture content threshold is reached, execute step S3.

[0047] Furthermore, in step S22 and step S23, the information processing terminal 1 presets the pressure thresholds and moisture content thresholds of different positions of the foundation where the loess foundation collapse warning device is located according to the basic information of the loess where the loess foundation collapse warning device is buried, the collapse starting conditions under various factors and the building specifications, and after comparing the information transmitted inside the foundation with the preset thresholds at different positions, issues a yes or no signal to execute step S3.

[0048] Step S3: When the risk of foundation collapse and deformation is detected, the alarm 7 of the information processing terminal 1 sounds an alarm. In case of pressure warning, a short sound and flashing light alarm is sounded; in case of water content warning, a long sound and a long light alarm is sounded.

[0049] The alarm 7 in the above-mentioned information processing terminal 1 receives a command to start the alarm, and the alarm 7 sounds an alarm. The information processing terminal 1 may also be provided with a display screen 6 for displaying alarm information.

[0050] The above description is only a specific embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A loess foundation subsidence early warning device, characterized in that: include: A monitoring device (18) and an information processing terminal (1) that is communicatively connected to the monitoring device (18), wherein the monitoring device (18) comprises a vertical measuring rod (8), the lower end of the vertical measuring rod (8) being buried in a corresponding position according to engineering monitoring requirements; a first monitoring device (15) is arranged at the top end of the vertical measuring rod (8), a second monitoring device (16) is arranged at the middle end of the vertical measuring rod (8), and a third monitoring device (17) is arranged at the lower end of the vertical measuring rod (8) below the ground; the first monitoring device (15) comprises a first sensing device (9) and a first communication device (10), the second monitoring device (16) comprises a second sensing device (11) and a second communication device (12), and the third monitoring device (17) comprises a third sensing device (14) and a third communication device (13).

2. The device according to claim 1, characterized in that The first sensing device (9), the second sensing device (11), and the third sensing device (14) are all provided with a pressure sensor and a humidity sensor.

3. The device according to claim 1, characterized in that The first communication device (10), the second communication device (12) and the third communication device (13) are all provided with a positioning node and a communicator.

4. The device according to claim 1, characterized in that The information processing terminal (1) is used to display warning location information. An alarm (7) is installed outside the information processing terminal (1), and a battery (5) is installed inside the information processing terminal (1).

5. The device according to claim 4, characterized in that The information processing terminal (1) comprises a communication module and a data processing module; the communication module is a wireless receiver used to obtain underground soil humidity and pressure information in real time; the data processing module is used to convert humidity into water content.

6. The early warning method of the loess foundation collapse early warning device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step S1: collecting geological information and location information of the corresponding underground area in real time through the first monitoring device (15), the second monitoring device (16) and the third monitoring device (17), and transmitting the information to the information processing terminal (1); Step S2: Analyze the data through the information processing terminal (1) to determine whether there is a risk of foundation settlement; Step S3: When the risk of foundation collapse and deformation is detected, the alarm (7) of the information processing terminal (1) sounds an alarm.

7. The method according to claim 6, characterized in that The step 1 specifically comprises the following steps: Step S11: using the pressure sensors and humidity sensors of the first sensing device (9), the second sensing device (11) and the third sensing device (14) to monitor the pressure and humidity information of the soil at the location; Step S12: The pressure and humidity information and the location information collected by the first sensing device (9), the second sensing device (11), and the third sensing device (14) are transmitted to the information processing terminal (1) through the positioning nodes and communicators of the first communication device (10), the second communication device (12), and the third communication device (13).

8. The method according to claim 6 or 7, characterized in that: The step 2 specifically comprises the following steps: Step S21: the acquisition module of the information processing terminal (1) collects the foundation soil information and position information transmitted by the positioning nodes and communicators of the first communication device (10), the second communication device (12), and the third communication device (13), and pre-processes the humidity information in the foundation soil information into moisture content; Step S22: Compare and analyze the pressure collected by the information processing terminal (1) with the initial pressure of the collapsible pressure corresponding to the moisture content after pre-processing; if the preset pressure threshold is not reached, continue Step S23: If the preset pressure threshold is reached, execute step S3; Step S23: Compare and analyze the moisture content collected by the information processing terminal (1) with the initial moisture content of the collapsible water content under the pressure conditions collected in step S21: if the moisture content threshold is not reached, repeat step S1; if the moisture content threshold is reached, execute step S3.

9. The method according to claim 8, characterized in that: In step S22 and step 23, the information processing terminal (1) presets the pressure thresholds and moisture content thresholds at different positions of the foundation where the loess foundation collapse warning device is located according to the basic information of the loess where the loess foundation collapse warning device is buried, the collapse starting conditions under the action of various factors, and the building specifications, and after comparing the information transmitted inside the foundation with the preset thresholds at different positions, issues a yes or no signal to execute step S3.

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