Automatic real-time monitoring device for building foundation settlement

Abstract

The invention discloses an automatic real-time monitoring device for building foundation settlement, and particularly relates to a ground and a foundation, the foundation is installed in the ground, a monitoring cavity is formed between the ground and the foundation, and a transverse monitoring mechanism used for monitoring horizontal deviation of the foundation is arranged in the monitoring cavity; and a longitudinal monitoring mechanism for monitoring the vertical settlement of the foundation is arranged in the monitoring cavity. According to the automatic real-time monitoring device for building foundation settlement, through the designed transverse monitoring mechanism, when a foundation deviates in the horizontal direction due to the load effect and the geological condition change, due to the deviation of the foundation, light beams emitted by a laser generator will deviate from light holes formed in a box body at the moment, and the settlement of the foundation is monitored in real time; the light beam emitted by the laser generator cannot irradiate the surface of the photoresistor, the resistance value of the photoresistor is increased, the power supply in the alarm is in a disconnected state, and the alarm is turned off, so that building personnel are reminded of horizontal deviation of the foundation, and horizontal deviation monitoring of the foundation is realized.

Description

Technical Field

[0001] This invention relates to the field of building foundation settlement monitoring, and particularly to an automatic real-time monitoring device for building foundation settlement. Background Technology

[0002] Foundation settlement refers to the subsidence of the foundation surface caused by the compaction of the foundation soil layers under additional stress. Excessive settlement, especially uneven settlement, can cause buildings to tilt, crack, and become unusable.

[0003] There are many factors that contribute to settlement. From an internal perspective, foundation settlement may be caused by the compression deformation of the soil pores, resulting in vertical deformation. From an external perspective, it may be caused by the additional stress generated in the foundation under external loads, which changes the original stress of the soil. In engineering projects such as construction, highways, bridges, and tunnels, the observation and assessment of settlement is essential.

[0004] An automatic monitoring device for foundation settlement, disclosed in announcement number CN112945189A, includes a foundation body, a water-carrying box, a pressure chamber, and a float. A steel support and a settlement plate are installed at the bottom of the foundation body. A waterproof compression plate is connected to the other end of the settlement plate via a connector. This waterproof compression plate is located inside the water-carrying box. A pipe is connected to the bottom of the water-carrying box, and a storage tank is connected to the other end of the pipe. A float level gauge is installed inside the storage tank. A horizontal frame is connected to the longitudinal side wall of the pipe. This device enables automated monitoring of foundation settlement. The water-carrying box and the storage tank are connected at both ends of the pipe. The liquid level in the storage tank serves as a stable reference point. When foundation settlement occurs, the downward pressure forces the waterproof compression plate down, causing the liquid level to rise under pressure. Settlement data is obtained by calculating the difference in liquid level, enabling subsequent analysis of specific issues.

[0005] However, the device only monitors the vertical settlement of the foundation during use, while ignoring the horizontal displacement that may occur under the influence of load, changes in geological conditions, and other factors. The horizontal displacement of the foundation can also pose a serious threat to the building structure, causing minor issues such as wall cracks and window and door deformation, or even causing the building to tilt or collapse.

[0006] Therefore, we urgently need to improve an automatic real-time monitoring device for building foundation settlement. Summary of the Invention

[0007] The main objective of this invention is to provide an automatic real-time monitoring device for building foundation settlement, which can effectively solve the problems mentioned above.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automatic real-time monitoring device for building foundation settlement includes a ground surface and a foundation. The foundation is installed inside the ground surface, and a monitoring cavity is formed between the ground surface and the foundation. An installation plate is installed at the top of the monitoring cavity, and a settlement plate is installed at the bottom of the monitoring cavity. A transverse monitoring mechanism for monitoring the horizontal displacement of the foundation is provided inside the monitoring cavity, and a longitudinal monitoring mechanism for monitoring the vertical settlement of the foundation is provided inside the monitoring cavity.

[0009] The lateral monitoring mechanism includes a support plate, a mounting frame is fixedly installed on the front of the support plate, a mounting sleeve is fixedly installed on the left side of the front of the mounting frame, a laser generator is detachably connected inside the mounting sleeve, a box is installed on the top left side of the settlement plate directly below the laser generator, a light-transmitting hole is opened on the upper surface of the box for receiving the beam emitted by the laser generator, a photoresistor is installed inside the box, and an alarm is connected to the top of the ground, the alarm being electrically connected to the photoresistor through a wire.

[0010] Preferably, the laser generator is located directly above the light-transmitting hole in the housing. The alarm is equipped with a power supply. When the foundation shifts laterally, the laser beam emitted by the laser generator cannot pass through the light-transmitting hole and illuminate the surface of the photoresistor, causing the resistance of the photoresistor to increase instantaneously. At this time, the alarm light goes out, alerting construction workers that the foundation has shifted laterally.

[0011] Preferably, the lateral monitoring mechanism further includes a laser rangefinder for monitoring the lateral offset distance of the foundation. The laser rangefinder is fixedly installed on the left side of the mounting frame, and a positioning plate is fixedly installed at the top center of the settlement plate to determine the initial position of the laser rangefinder.

[0012] Preferably, the longitudinal monitoring mechanism includes a U-shaped tube, which is fixedly installed on the front of the mounting frame. A sealing head is slidably connected to the left side inside the U-shaped tube, and a push rod is fixedly installed on the top of the sealing head. One end of the push rod is fixedly connected to the sealing head, and the other end extends to the outside of the U-shaped tube and is bent and fixedly connected to the settling plate. A left top cover is fixedly installed on the top left side inside the U-shaped tube, a floating plate is installed on the right side inside the U-shaped tube, and a right top cover is fixedly installed on the top right side inside the U-shaped tube. An electrical contact is installed on the side of the floating plate adjacent to the right top cover.

[0013] Preferably, there are multiple alarms. The first electrical contact is connected to the alarm via a wire. When the foundation settles, the push rod moves downward and pushes the sealing head downward. At this time, the liquid in the left end of the U-shaped tube is forced into the right end, which pushes the float to move the first electrical contact upward and contact the first electrical contact at the bottom of the right top cover, thereby causing the alarm to sound and alert building personnel to the ground settlement.

[0014] Preferably, the longitudinal monitoring mechanism further includes a second laser rangefinder for monitoring the depth of foundation settlement, the second laser rangefinder being fixedly installed on the right side of the front of the mounting frame.

[0015] Preferably, the signal output terminals of the laser rangefinder 2 and the laser rangefinder 1 are integrated with LoRa modules, and the LoRa modules are connected to the data processing terminal via Ethernet. The LoRa modules convert analog signals into LoRa wireless signals, which are received by the LoRa gateway. The LoRa gateway then forwards the aggregated data stream to the data processing terminal via Ethernet to obtain real-time data.

[0016] Preferably, an electrical contact 2 is installed on the side of the left top cover adjacent to the sealing head for monitoring the ground heave. The electrical contact 2 is electrically connected to the alarm via a wire.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This device, through its designed lateral monitoring mechanism, detects when the foundation shifts horizontally due to load or changes in geological conditions. Because of this shift, the laser beam emitted by the laser generator deviates from the light-transmitting hole in the housing. The laser beam cannot illuminate the surface of the photoresistor, causing its resistance to increase. This disconnects the power supply inside the alarm, extinguishing the alarm and alerting construction personnel to the horizontal shift of the foundation, thus achieving foundation horizontal shift monitoring.

[0018] 2. This device, through its designed longitudinal monitoring mechanism, will cause the floating plate to move upward and contact the electrical contact one on the right top cover when there is vertical settlement in the foundation. At this time, the alarm will sound to remind the construction personnel that the foundation has settled. When the foundation heaves, the push rod will cause the sealing head to move upward. When the sealing head contacts the electrical contact two connected to the left top cover, the alarm will sound to remind the construction personnel that the foundation has heaves. This device realizes the monitoring of foundation settlement and heave, and improves the monitoring flexibility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the connection between the lateral monitoring mechanism and the longitudinal monitoring mechanism of the present invention; Figure 4 This is a schematic diagram of the lateral monitoring mechanism structure of the present invention; Figure 5 This is a cross-sectional view of the internal structure of the U-shaped tube of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Ground; 2. Foundation; 3. Mounting plate; 4. Settlement plate; 5. Support plate; 6. Mounting frame; 7. Mounting sleeve; 8. Laser generator; 9. Box; 10. Photoresistor; 11. Laser rangefinder I; 12. Positioning plate; 13. U-tube; 14. Sealing head; 15. Push rod; 16. Left top cover; 17. Floating plate; 18. Right top cover; 19. Electrical contact I; 20. Laser rangefinder II; 21. Electrical contact II; 22. Alarm. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1, as Figures 1-4 As shown, an automatic real-time monitoring device for building foundation settlement includes a ground surface 1 and a foundation 2. The foundation 2 is installed inside the ground surface 1. A monitoring cavity is provided between the ground surface 1 and the foundation 2. An installation plate 3 is installed at the top inside the monitoring cavity, and a settlement plate 4 is installed at the bottom inside the monitoring cavity. A lateral monitoring mechanism for monitoring the horizontal displacement of the foundation 2 is provided inside the monitoring cavity. The lateral monitoring mechanism includes a support plate 5. An installation frame 6 is fixedly installed on the front of the support plate 5. An installation sleeve 7 is fixedly installed on the left side of the front of the installation frame 6. A laser generator 8 is detachably connected inside the installation sleeve 7. The laser generator 8 is located directly above the light-transmitting hole opened in the housing 9.

[0023] The alarm 22 is equipped with a power supply. When the foundation 2 shifts laterally, the beam emitted by the laser generator 8 cannot pass through the light-transmitting hole and shine on the surface of the photoresistor 10, causing the resistance of the photoresistor 10 to increase instantaneously. At this time, the alarm 22 lights up, reminding the construction personnel that the foundation 2 has shifted laterally.

[0024] A box 9 is installed on the top left side of the settling plate 4, directly below the laser generator 8. A light-transmitting hole is opened on the upper surface of the box 9 to receive the beam emitted by the laser generator 8. A photoresistor 10 is installed inside the box 9. An alarm 22 is connected to the top of the ground 1. The alarm 22 is electrically connected to the photoresistor 10 through a wire.

[0025] Specifically, during the horizontal monitoring of foundation 2, a laser beam emitted by laser generator 8 passes through the light-transmitting hole in the housing 9 and illuminates the surface of photoresistor 10. At this time, the resistance of photoresistor 10 decreases, the power supply inside alarm 22 is turned on, and alarm 22 flashes to remind construction personnel that foundation 2 has not shifted. When foundation 2 shifts horizontally due to load or changes in geological conditions, the laser beam emitted by laser generator 8 will deviate from the light-transmitting hole in housing 9 due to the shift of foundation 2. The laser beam emitted by laser generator 8 cannot illuminate the surface of photoresistor 10. At this time, the resistance of photoresistor 10 increases, the power supply inside alarm 22 is turned off, and alarm 22 is extinguished, thus reminding construction personnel that foundation 2 has shifted horizontally.

[0026] like Figures 1-3 As shown, the lateral monitoring mechanism also includes a laser rangefinder 11 for monitoring the lateral offset distance of the foundation 2. The laser rangefinder 11 is fixedly installed on the left side of the mounting frame 6, and a positioning plate 12 is fixedly installed at the top center of the settlement plate 4 to determine the initial position of the laser rangefinder 11.

[0027] The monitoring chamber is equipped with a longitudinal monitoring mechanism for monitoring the vertical settlement of the foundation 2. The longitudinal monitoring mechanism includes a U-shaped tube 13, which is fixedly installed on the front of the mounting frame 6. A sealing head 14 is slidably connected to the left side of the U-shaped tube 13. A push rod 15 is fixedly installed on the top of the sealing head 14. One end of the push rod 15 is fixedly connected to the sealing head 14, and the other end extends to the outside of the U-shaped tube 13 and is bent to be fixedly connected to the settlement plate 4. A left top cover 16 is fixedly installed on the top left side of the U-shaped tube 13. A floating plate 17 is installed on the right side of the U-shaped tube 13. A right top cover 18 is fixedly installed on the top right side. An electric contact 19 is installed on the side of the floating plate 17 adjacent to the right top cover 18. There are multiple alarms 22. The electric contact 19 is connected to the alarm 22 through a wire. When the foundation 2 settles, the push rod 15 will move downward and push the sealing head 14 downward. At this time, the liquid in the left end of the U-shaped tube 13 will be forced into the right end and push the floating plate 17 to move the electric contact 19 upward and contact the electric contact 19 at the bottom of the right top cover 18, so that the alarm 22 will sound an alarm and alert the construction personnel to the settlement of the foundation 2.

[0028] Specifically, when there is vertical settlement in foundation 2, as foundation 2 settles, foundation 2 will cause push rod 15 to move downward. At the same time, push rod 15 will push sealing head 14 downward, pressing the liquid on the left side of U-tube 13 into the right side. At this time, the liquid level on the right side of U-tube 13 rises, and under the action of buoyancy, it will cause float 17 to move upward and contact the electrical contact 19 of right top cover 18. At this time, alarm 22 will sound an alarm to remind construction personnel that foundation 2 has settled.

[0029] Example 2, like Figures 1-3 As shown, the longitudinal monitoring mechanism also includes a laser rangefinder 20 for monitoring the settlement depth of the foundation 2. The laser rangefinder 20 is fixedly installed on the right side of the front of the mounting frame 6. The signal output terminals of the laser rangefinder 20 and the laser rangefinder 11 integrate LoRa modules, and the LoRa modules are connected to the data processing terminal via Ethernet. The analog signals are converted into LoRa wireless signals by the LoRa modules, which are received by the LoRa gateway. The LoRa gateway then forwards the aggregated data stream to the data processing terminal via Ethernet to obtain real-time data.

[0030] Specifically, when laser rangefinder 11 and laser rangefinder 20 monitor the horizontal offset and vertical settlement depth of foundation 2, respectively, the signal output terminals of laser rangefinder 11 and laser rangefinder 20 integrate LoRa modules. The LoRa modules convert analog signals into LoRa wireless signals, which are then received by the LoRa gateway and forwarded to the data processing terminal via Ethernet to obtain real-time data.

[0031] like Figure 6 As shown, electrical contacts 21 are installed on the side of the left top cover 16 adjacent to the sealing head 14 to monitor the rise of the foundation 2. The electrical contacts 21 are electrically connected to the alarm 22 through wires.

[0032] Specifically, when the foundation 2 rises, the push rod 15 will drive the sealing head 14 to rise as the foundation 2 moves upward. When the sealing head 14 and the electrical contact 21 connected to the left top cover 16 come into contact, the alarm 22 will sound an alarm to remind the construction personnel that the foundation 2 has risen.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic real-time monitoring device for building foundation settlement, comprising a ground surface (1) and a foundation (2), wherein the foundation (2) is installed inside the ground surface (1), characterized in that: A monitoring cavity is provided between the ground (1) and the foundation (2). An installation plate (3) is installed at the top inside the monitoring cavity, and a settlement plate (4) is installed at the bottom inside the monitoring cavity. A transverse monitoring mechanism for monitoring the horizontal displacement of the foundation (2) is provided inside the monitoring cavity, and a longitudinal monitoring mechanism for monitoring the vertical settlement of the foundation (2) is provided inside the monitoring cavity. The horizontal monitoring mechanism includes a support plate (5), a mounting bracket (6) is fixedly installed on the front of the support plate (5), a mounting sleeve (7) is fixedly installed on the left side of the front of the mounting bracket (6), a laser generator (8) is detachably connected inside the mounting sleeve (7), a box (9) is installed on the top left side of the settling plate (4) directly below the laser generator (8), a light-transmitting hole is opened on the upper surface of the box (9) to receive the light beam emitted by the laser generator (8), a photoresistor (10) is installed inside the box (9), an alarm (22) is connected to the top of the ground (1), and the alarm (22) is electrically connected to the photoresistor (10) through a wire.

2. The automatic real-time monitoring device for building foundation settlement according to claim 1, characterized in that: The laser generator (8) is located directly above the light-transmitting hole in the housing (9), and the alarm (22) has a power supply installed inside.

3. The automatic real-time monitoring device for building foundation settlement according to claim 1, characterized in that: The lateral monitoring mechanism also includes a laser rangefinder (11) for monitoring the lateral offset distance of the foundation (2). The laser rangefinder (11) is fixedly installed on the left side of the mounting frame (6). A positioning plate (12) is fixedly installed at the top center of the settlement plate (4) to determine the initial position of the laser rangefinder (11).

4. The automatic real-time monitoring device for building foundation settlement according to claim 1, characterized in that: The longitudinal monitoring mechanism includes a U-shaped tube (13), which is fixedly installed on the front of the mounting frame (6). A sealing head (14) is slidably connected to the left side inside the U-shaped tube (13). A push rod (15) is fixedly installed on the top of the sealing head (14). One end of the push rod (15) is fixedly connected to the sealing head (14), and the other end extends to the outside of the U-shaped tube (13) and is bent and fixedly connected to the settling plate (4). A left top cover (16) is fixedly installed on the top left side inside the U-shaped tube (13). A floating plate (17) is installed on the right side inside the U-shaped tube (13). A right top cover (18) is fixedly installed on the top right side inside the U-shaped tube (13). An electric contact (19) is installed on the side adjacent to the floating plate (17) and the right top cover (18).

5. An automatic real-time monitoring device for building foundation settlement according to claim 4, characterized in that: There are multiple alarms (22), and the first electrical contact (19) is connected to the alarm (22) via a wire.

6. The automatic real-time monitoring device for building foundation settlement according to claim 4, characterized in that: The longitudinal monitoring mechanism also includes a laser rangefinder (20) for monitoring the settlement depth of the foundation (2), which is fixedly installed on the right side of the front of the mounting frame (6).

7. An automatic real-time monitoring device for building foundation settlement according to claim 6, characterized in that: The signal output terminals of the laser rangefinder 2 (20) and laser rangefinder 1 (11) integrate LoRa modules, and the LoRa modules are connected to the data processing terminal via Ethernet. The LoRa modules convert analog signals into LoRa wireless signals, which are received by the LoRa gateway. The LoRa gateway then forwards the aggregated data stream to the data processing terminal via Ethernet.

8. An automatic real-time monitoring device for building foundation settlement according to claim 4, characterized in that: The left top cover (16) and the sealing head (14) are each equipped with an electrical contact (21) to monitor the rise of the foundation (2). The electrical contact (21) is electrically connected to the alarm (22) through a wire.

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