Foundation pit monitoring equipment

Abstract

This application discloses a foundation pit monitoring device, which includes an inclinometer and a water level gauge. The inclinometer includes an inclinometer rod, two partition plates disposed within the inclinometer rod, and an inclinometer component. The two partition plates and the inner wall of the inclinometer rod can be closed to form an assembly cavity. Multiple first permeable holes are provided on the periphery of the inclinometer rod, allowing the assembly cavity to communicate with the outside through these holes. The inclinometer component is installed on the inclinometer rod, and the water level gauge is placed inside the assembly cavity. When foundation pit monitoring is required, the foundation pit monitoring device only needs to be arranged in a borehole. The inclinometer component can monitor the deep horizontal displacement, and groundwater enters the assembly cavity through the multiple first permeable holes, allowing the water level gauge in the assembly cavity to monitor the groundwater level. Thus, groundwater level and deep horizontal displacement can be monitored simultaneously in one borehole, simplifying the monitoring process and improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of geotechnical engineering foundation pit monitoring technology, and in particular to a foundation pit monitoring device. Background Technology

[0002] Currently, foundation pit monitoring is a crucial part of the foundation pit engineering construction process. Foundation pit monitoring refers to the observation and analysis work carried out during the foundation pit excavation and underground engineering construction process, focusing on changes in the soil and rock properties, displacement of the support structure, and changes in the surrounding environmental conditions. The monitoring results are promptly reported back, and based on these results, the potential deformation and stability changes that may occur after further construction are predicted. The extent of the impact of construction on the surrounding environment is determined based on the prediction results, thereby providing guidance for design and construction.

[0003] In foundation pit monitoring, groundwater level monitoring and deep horizontal displacement monitoring are both critical monitoring items. However, these two monitoring tasks require separate monitoring points, separate boreholes, separate installation of water level pipes and inclinometers, and the use of different instruments to independently monitor the groundwater level and deep horizontal displacement. This series of operations makes the subsequent monitoring process cumbersome and seriously affects work efficiency. Utility Model Content

[0004] This application provides a foundation pit monitoring device that can solve the technical problem of cumbersome monitoring procedures in foundation pit monitoring work.

[0005] In a first aspect, embodiments of this application provide a foundation pit monitoring device, which includes:

[0006] An inclinometer includes an inclinometer rod, two partition plates disposed within the inclinometer rod, and an inclinometer component. The two partition plates are arranged at intervals along the extension direction of the inclinometer rod, and the two partition plates and the inner wall surface of the inclinometer rod enclose an assembly cavity. The inclinometer rod is provided with a plurality of first water-permeable holes, which communicate with the assembly cavity. The inclinometer component is installed on the inclinometer rod and is used to monitor horizontal displacement.

[0007] A water level gauge is disposed inside the assembly cavity and installed on the partition plate. The water level gauge is used to monitor the water level height.

[0008] In some embodiments, the inclinometer component and the water level gauge are arranged along the extension direction of the inclinometer rod;

[0009] The partition plate is provided with a wire hole, through which the connecting wire of the water level gauge passes and is electrically connected to the inclinometer component.

[0010] In some embodiments, the foundation pit monitoring device further includes a clinometer tube for insertion into the borehole, the bottom of the clinometer tube having multiple second permeable holes, and the clinometer being installed inside the clinometer tube.

[0011] In some embodiments, the pit monitoring device further includes a filter element fitted onto the bottom of the inclinometer tube and covering a plurality of the second permeable holes.

[0012] In some embodiments, the foundation pit monitoring device further includes:

[0013] A connecting cable, one end of which is electrically connected to the inclinometer;

[0014] The control center is electrically connected to the other end of the connecting cable and is used to receive monitoring data from the inclinometer and the water level gauge.

[0015] In some embodiments, the foundation pit monitoring device further includes:

[0016] A reel, on which the connecting cable is wound;

[0017] A drive unit, connected to the drive of the drum, is used to drive the drum to rotate, thereby raising and lowering the inclinometer.

[0018] In some embodiments, the connecting cable includes a suspension rope wound around the drum and connected to the inclinometer, so that the connecting cable can suspend the inclinometer.

[0019] In some embodiments, the drive unit is electrically connected to the control center, which is configured to control the drive unit to lower the inclinometer after a first predetermined time interval, and the control center is also configured to control the drive unit to raise the inclinometer after a second predetermined time interval.

[0020] In some embodiments, the control center includes a remote control device electrically connected to the drive element, the remote control device being configured to control the drive element to open and close.

[0021] In some embodiments, the control center includes a wireless transmission device configured to remotely transmit the monitoring data.

[0022] The foundation pit monitoring device based on the embodiments of this application has at least the following beneficial effects:

[0023] By placing two partition plates inside the inclinometer rod and arranging them spaced apart along its extension direction, the partition plates and the inner wall of the inclinometer rod can enclose an assembly cavity. Multiple first permeable holes are provided on the periphery of the inclinometer rod, allowing the assembly cavity to communicate with the outside. The inclinometer component is installed on the inclinometer rod, and the water level gauge is placed inside the assembly cavity. When foundation pit monitoring is required, the monitoring equipment only needs to be placed in a single borehole. The inclinometer component can monitor deep horizontal displacement, and groundwater enters the assembly cavity through the multiple first permeable holes, allowing the water level gauge within the assembly cavity to monitor the groundwater level. Thus, both groundwater level and deep horizontal displacement can be monitored simultaneously within a single borehole, simplifying the monitoring process and improving work efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a foundation pit monitoring device provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the inclinometer provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the inclinometer installed inside the inclinometer tube according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Excavation pit monitoring equipment;

[0030] 10. Inclinometer; 1. Inclinometer rod; 101. Assembly cavity; 102. First water-permeable hole; 2. Divider plate; 21. Wire hole; 3. Inclinometer component;

[0031] 20. Water level gauge;

[0032] 30. Inclinometer tube; 301. Second permeable hole; 31. Filter element;

[0033] 40. Connecting cables;

[0034] 50. Control Center;

[0035] 60. Roll;

[0036] 70. Drive components. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0038] Please see Figures 1 to 3 This application provides a foundation pit monitoring device 100, which includes an inclinometer 10 and a water level gauge 20. The inclinometer 10 includes an inclinometer rod 1, two partition plates 2 disposed within the inclinometer rod 1, and an inclinometer component 3. The two partition plates 2 are arranged at intervals along the extension direction of the inclinometer rod 1, and the two partition plates 2 and the inner wall of the inclinometer rod 1 enclose an assembly cavity 101. The inclinometer rod 1 is provided with a plurality of first water-permeable holes 102, which are connected to the assembly cavity 101. The inclinometer component 3 is installed on the inclinometer rod 1 and is used to monitor horizontal displacement. The water level gauge 20 is disposed within the assembly cavity 101 and is installed on the partition plates 2. The water level gauge 20 is used to monitor water level height.

[0039] Optionally, the inclinometer rod 1 is a long straight rod, and at least part of the inclinometer rod 1 is a hollow tube, so that two partition plates 2 can be set inside the inclinometer rod 1. The two partition plates 2 are arranged at intervals along the extension direction of the inclinometer rod 1, and the two partition plates 2 and the inner wall surface of the inclinometer rod 1 enclose an assembly cavity 101. The inner wall surface of the inclinometer rod 1 is also provided with a plurality of first water permeable holes 102. The assembly cavity 101 communicates with the outside through the first water permeable holes 102. The inclinometer component 3 is installed on the inclinometer rod 1. The inclinometer component 3 may include an accelerometer or a gravity sensing element for sensing changes in tilt angle. The water level gauge 20 is set inside the assembly cavity 101, so that the inclinometer component 3 and the water level gauge 20 can be integrated on one inclinometer rod 1.

[0040] When foundation pit monitoring is required, only one borehole needs to be excavated at the monitoring point of the foundation pit, and an inclinometer tube 30 needs to be buried. The inclinometer 10 is then placed into the inclinometer tube 30. The deep horizontal displacement can be monitored through the inclinometer component 3. Groundwater enters the assembly cavity 101 from multiple first permeable holes 102, so that the water level gauge 20 in the assembly cavity 101 can monitor the groundwater level. Thus, the groundwater level and deep horizontal displacement can be monitored simultaneously in one borehole, which simplifies the monitoring process and improves work efficiency.

[0041] Please see Figure 1 In some embodiments, the inclinometer 3 and the water level gauge 20 are arranged along the extension direction of the inclinometer rod 1. The partition plate 2 is provided with a wire hole 21, through which the connecting wire of the water level gauge 20 passes, and the connecting wire of the water level gauge 20 is electrically connected to the inclinometer 3.

[0042] In this embodiment, the water level gauge 20 is fixed to the upper partition plate 2, and the upper partition plate 2 is provided with a wire hole 21, so that the connecting wire of the water level gauge 20 can pass through the wire hole 21 and be electrically connected to the inclinometer 3, and then the measurement data of the water level gauge 20 and the measurement data of the inclinometer 3 can be transmitted to the control center 50 together.

[0043] Please see Figure 2 and Figure 3 In some embodiments, the foundation pit monitoring device 100 further includes a clinometer tube 30, which is used to insert into the borehole. The bottom of the clinometer tube 30 is provided with a plurality of second water-permeable holes 301, and the clinometer rod 1 is disposed inside the clinometer tube 30.

[0044] Optionally, the inclinometer tube 30 is a measuring tube pre-embedded in the borehole. The inclinometer rod 1 is set inside the inclinometer tube 30, so that the inclinometer component 3 and the inclinometer tube 30 can work together to form an inclinometer system for monitoring the deep horizontal displacement of engineering structures such as soil and walls. Multiple second permeable holes 301 are provided at the bottom of the inclinometer tube 30, and groundwater can permeate into the borehole through the second permeable holes 301, so that the water level gauge 20 can monitor the water level, and the foundation pit monitoring equipment 100 can simultaneously monitor the groundwater level and the deep horizontal displacement.

[0045] Please see Figure 2 In some embodiments, the foundation pit monitoring device 100 further includes a filter element 31, which is sleeved on the bottom of the inclinometer tube 30 and covers a plurality of second permeable holes 301.

[0046] Optionally, the filter element 31 can be a geotextile. The geotextile has the characteristics of high elongation, permeability and filtration. The geotextile is wrapped around the bottom of the inclinometer tube 30 so that it can cover multiple second permeable holes 301. The permeability and filtration of the geotextile allow groundwater to enter the inclinometer tube 30 and prevent sediment from entering the inclinometer tube 30, which facilitates the water level gauge 20 to measure the water level.

[0047] Please see Figure 3 In some embodiments, the foundation pit monitoring device 100 also includes a connecting cable 40 and a control center 50. One end of the connecting cable 40 is electrically connected to the inclinometer 10, and the control center 50 is electrically connected to the other end of the connecting cable 40. The control center 50 is used to receive monitoring data from the inclinometer 3 and the water level gauge 20.

[0048] Optionally, the control center 50 can be located outside the borehole. The connecting cable 40 has strong structural strength, enabling it to suspend the inclinometer 10 inside the borehole. The control center 50 can receive monitoring data from the inclinometer component 3 and the water level gauge 20, and store the monitoring data in the control center 50. The control center 50 can also analyze the monitoring data to facilitate real-time feedback of monitoring results.

[0049] Please see Figure 3 In some embodiments, the foundation pit monitoring device 100 also includes a drum 60 and a drive unit 70. The connecting cable 40 is wound around the drum 60, and the drive unit 70 is driven to the drum 60. The drive unit 70 is used to drive the drum 60 to rotate so as to raise and lower the inclinometer 10.

[0050] Optionally, the drum 60 is rotatably mounted on the bracket, allowing it to rotate around its own axis. This allows the connecting cable 40 to be wound around the drum 60. The drive unit 70 is a rotary motor, and its output shaft is connected to the drum 60. When the drive unit 70 drives the drum 60 to rotate in the positive direction, the drum 60 can release the connecting cable 40 to lower the inclinometer 10 to the bottom of the borehole, enabling the foundation pit monitoring equipment 100 to simultaneously monitor the groundwater level and deep horizontal displacement. When the drive unit 70 drives the drum 60 to rotate in the opposite direction, the drum 60 can retract the connecting cable 40 to raise the inclinometer 10 above the borehole, facilitating the removal of the inclinometer 10 from the borehole. The drum 60 and the drive unit 70 allow for convenient raising and lowering of the inclinometer 10.

[0051] In some embodiments, the connecting cable 40 includes a suspension rope wound around a drum 60 and connected to the inclinometer 10, so that the connecting cable 40 can suspend the inclinometer 10.

[0052] Optionally, the suspension rope can be a high-strength rope such as a steel wire rope or a carbon fiber rope. The suspension rope can increase the structural strength of the connecting cable 40, ensuring that the connecting cable 40 has sufficient strength to lift and lower the inclinometer 10.

[0053] Please see Figure 3 In some embodiments, the drive unit 70 is electrically connected to the control center 50. The control center 50 is configured to control the drive unit 70 to lower the inclinometer 10 after a first preset time interval. The control center 50 is also configured to control the drive unit 70 to raise the inclinometer 10 after a second preset time interval.

[0054] Optionally, the control center 50 is configured to, after a first preset time interval, control the drive unit 70 to drive the drum 60 to rotate in the positive direction, so that the drum 60 can release the connecting cable 40, thereby allowing the connecting cable 40 to lower the inclinometer 10 to the bottom of the borehole, enabling the foundation pit monitoring equipment 100 to simultaneously monitor the groundwater level and deep horizontal displacement. The control center 50 is also configured to, after a second preset time interval, control the drive unit 70 to drive the drum 60 to rotate in the opposite direction, so that the drum 60 can retract the connecting cable 40, thereby allowing the connecting cable 40 to lift the inclinometer 10 to the top of the borehole, facilitating the removal of the inclinometer 10 from the borehole. Of course, the second preset time here is the time required for the foundation pit monitoring equipment 100 to monitor the groundwater level and deep horizontal displacement.

[0055] Thus, the foundation pit monitoring equipment 100 has an automatic control function, which can control the drive component 70 to drive the drum 60 to rotate at regular intervals or according to a set time interval, thereby automatically lowering and raising the inclinometer 10 integrated with the water level gauge 20, realizing the unattended automatic monitoring function.

[0056] In some embodiments, the control center 50 may also include a remote control device electrically connected to the drive unit 70, enabling staff to remotely control the drive unit 70 to lower and raise the inclinometer 10 integrated with the water level gauge 20, thereby enabling remote control of the foundation pit monitoring equipment 100 to perform deep horizontal displacement and groundwater level monitoring work.

[0057] In some embodiments, the control center 50 may also include a wireless transmission device that can communicate with a remote server, such as a mobile phone or computer, so that monitoring data can be transmitted to the remote server in real time, making it convenient for staff to remotely query the monitoring data in real time.

[0058] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A foundation pit monitoring apparatus characterized by, include: An inclinometer includes an inclinometer rod, two partition plates disposed within the inclinometer rod, and an inclinometer component. The two partition plates are arranged at intervals along the extension direction of the inclinometer rod, and the two partition plates and the inner wall surface of the inclinometer rod enclose an assembly cavity. The inclinometer rod is provided with a plurality of first water-permeable holes, which communicate with the assembly cavity. The inclinometer component is installed on the inclinometer rod and is used to monitor horizontal displacement. A water level gauge is disposed inside the assembly cavity and installed on the partition plate. The water level gauge is used to monitor the water level height.

2. The equipment for monitoring a foundation pit according to claim 1, characterized in that, The inclinometer component and the water level gauge are arranged along the extension direction of the inclinometer rod; The partition plate is provided with a wire hole, through which the connecting wire of the water level gauge passes and is electrically connected to the inclinometer component.

3. The excavation monitoring apparatus of claim 1, wherein, The foundation pit monitoring equipment also includes a clinometer tube, which is inserted into the borehole. The bottom of the clinometer tube is provided with multiple second water-permeable holes, and the clinometer is installed inside the clinometer tube.

4. The equipment for monitoring of foundation pits according to claim 3, characterized in that, The foundation pit monitoring equipment also includes a filter element, which is sleeved on the bottom of the inclinometer tube and covers multiple second permeable holes.

5. The excavation monitoring apparatus of claim 1, wherein, The foundation pit monitoring equipment also includes: A connecting cable, one end of which is electrically connected to the inclinometer; The control center is electrically connected to the other end of the connecting cable and is used to receive monitoring data from the inclinometer and the water level gauge.

6. The excavation monitoring apparatus of claim 5, wherein, The foundation pit monitoring equipment also includes: A reel, on which the connecting cable is wound; A drive unit, connected to the drive of the drum, is used to drive the drum to rotate, thereby raising and lowering the inclinometer.

7. The excavation monitoring apparatus of claim 6, wherein, The connecting cable includes a suspension rope, which is wound around the drum and connected to the inclinometer so that the connecting cable can suspend the inclinometer.

8. The excavation monitoring apparatus of claim 6, wherein, The drive unit is electrically connected to the control center. The control center is configured to control the drive unit to lower the inclinometer after a first predetermined time interval. The control center is also configured to control the drive unit to raise the inclinometer after a second predetermined time interval.

9. The excavation monitoring apparatus of claim 6, wherein, The control center includes a remote control device electrically connected to the drive component, and the remote control device is configured to control the opening and closing of the drive component.

10. The excavation monitoring apparatus of claim 5, wherein, The control center includes a wireless transmission device configured to remotely transmit the monitoring data.

Images