Automatic monitoring system for horizontal displacement of deep layer of foundation pit

Abstract

The utility model discloses an automatic monitoring system for horizontal displacement of a deep layer of a foundation pit, and particularly relates to the technical field of horizontal monitoring of the foundation pit, which comprises a base for supporting, a surveying and mapping monitoring assembly is arranged on the base, and the surveying and mapping monitoring assembly comprises a protective cover which is arranged at the top of the base and is used for supporting. A first dislocation opening is formed in the bottom of the protective cover and located in the upper surface of the base. The surveying and mapping monitoring assembly is arranged, the bottom of a surveying and mapping device extends to the bottom of the inner wall of the foundation pit through guiding of a limiting sleeve, and the surveying and mapping device can make contact with the bottom of the inner wall of the foundation pit through displacement of a base through a supporting wheel, so that the accuracy of the device during monitoring is ensured; when the surveying and mapping device displaces, the displacement sensor is driven to displace, the concave-convex surface of the foundation pit is surveyed and mapped by combining the surveying and mapping device and displayed on the vertical plate, and the plane condition of the foundation pit is easy to know.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit level monitoring, and more specifically, to an automatic monitoring system for deep horizontal displacement of a foundation pit. Background Art

[0002] The depth of the foundation pit refers to the deeper part of the foundation pit excavation, usually the part exceeding a certain depth (such as 10 meters). When excavating the foundation pit, horizontal monitoring is required to ensure the safety and stability of the project;

[0003] Horizontal monitoring refers to the monitoring and measurement of horizontal displacement of the deep foundation pit. The main purpose is to timely discover and grasp the deformation of the soil and structure around the foundation pit, so as to take appropriate measures to control and prevent possible safety problems such as tilting, settlement, sliding, etc.

[0004] Among them, it was found through search that the utility model patent with patent application number CN202022384763.4 discloses an automatic antenna monitoring device for deep horizontal displacement of foundation pit. A moving wheel and a sensor fixing plate are installed on the axle of the device, and the sensor fixing plate is fixed on the outside of the moving wheel; an inclination measurement unit is provided in the middle of the axle, and the inclination measurement unit is composed of multiple MEMS accelerometers connected in series. The inclination measurement unit can measure the deep horizontal displacement of the foundation pit. The sensor fixing plate is equipped with a wireless data acquisition and transmission device and a charging and power supply system. A sensor protective cover is provided on the outside of the sensor fixing plate;

[0005] When the structure is in use, the device is a trolley case structure and can be directly dragged on site. It is easy to use and can measure the horizontal displacement of deep layers of foundation pits in real time in an unattended environment. It is an automated wireless monitoring technology and equipment with high precision, easy installation and reusability. However, when the structure is in use, the mobile wheels are used as support points for displacement detection. However, this also causes the device to move up and down as a whole due to the unevenness of the ground, making it difficult to map the horizontality, resulting in inaccurate monitoring. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides an automatic monitoring system for deep horizontal displacement of foundation pits, aiming to solve the problems raised in the above-mentioned background technology.

[0007] The utility model is implemented in this way. The utility model provides the following technical solutions: an automatic monitoring system for deep horizontal displacement of a foundation pit, comprising a base for support, on which a surveying and mapping monitoring component is arranged;

[0008] The surveying and monitoring assembly includes a protective cover arranged on the top of the base for support, a first offset opening is opened at the bottom of the protective cover and located on the upper surface of the base, and a second offset opening is opened through the protective cover;

[0009] A reinforcing support plate installed on the base is arranged in the first offset opening, a positioning groove is opened on one side of the inner wall of the second offset opening, a limiting sleeve is arranged in the positioning groove, and a surveying device for surveying is slidably connected in the limiting sleeve.

[0010] It can be seen that in the above technical solution, the bottom of the surveyor is extended to the bottom of the inner wall of the foundation pit through the guidance of the limit sleeve, and the base is displaced through the support wheels, so that the surveyor can contact the bottom of the inner wall of the foundation pit, and the surveyor can move up and down along the guidance of the limit sleeve through the arc of the concave and convex ground;

[0011] Optionally, in a possible implementation manner, a displacement sensor is provided on the top of the surveyor, and the displacement sensor is detachably connected to the surveyor by bolts, the bottom of the limit sleeve penetrates the reinforcing support plate and extends to the bottom of the reinforcing support plate, and the reinforcing support plate is detachably connected to the limit sleeve, a pad for support is provided on the top, and a limiting outer stopper installed on the pad for limiting the pad is provided on the outer side of the pad, and an electric push rod for driving is provided on the top of the pad, and a vertical plate is provided at the output end of the electric push rod, and a main machine is provided on the top of the vertical plate, and support wheels are provided at the four corners of the bottom of the base;

[0012] It can be seen that in the above technical solution, when the surveying device is displaced, the displacement sensor will be driven to move, and then the concave and convex surface of the foundation pit will be surveyed and displayed on the vertical plate in combination with the surveying device, which makes it easy to understand the plane situation of the foundation pit, and when the device is in use, it can be started by an electric push rod. The output end of the electric push rod drives the vertical plate to drive the main machine to move upward, which makes it easy to adjust the height of the vertical plate and easy for the staff to observe the monitoring results of the device.

[0013] Technical effects and advantages of the utility model:

[0014] By setting up the surveying and mapping monitoring assembly, compared with the prior art, the overall design is simple and the structure is reasonable. Through the corresponding coordinated use of various structures, the bottom of the surveyor is extended to the bottom of the inner wall of the foundation pit through the guidance of the limit sleeve, and the base is displaced through the support wheel, so that the surveyor can contact the bottom of the inner wall of the foundation pit, so as to ensure the accuracy of the device during monitoring;

[0015] And the surveyor can move up and down along the guide of the limit sleeve through the arc of the uneven ground. At the same time, when the surveyor moves, it will drive the displacement sensor to move. Combined with the surveyor, the uneven surface of the foundation pit is measured and displayed on the vertical plate, which makes it easy to understand the plane situation of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0017] Figure 1 It is the front view of the overall structure of the utility model.

[0018] Figure 2 It is a side view of the overall structure of the utility model.

[0019] Figure 3 This is a front view of the base, protective cover, limit sleeve, surveyor and displacement sensor of the utility model.

[0020] Figure 4 It is a front view of the pad, electric push rod and vertical plate of the utility model.

[0021] The accompanying drawings are marked as follows: 1. base; 2. protective cover; 3. first offset opening; 4. reinforcing support plate; 5. second offset opening; 6. positioning groove; 7. limit sleeve; 8. surveyor; 9. displacement sensor; 10. pad; 11. limit outer block; 12. electric push rod; 13. vertical plate; 14. main machine; 15. support wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1-4 The deep horizontal displacement automatic monitoring system of the foundation pit shown in the figure, through the surveying and mapping monitoring component set on the base 1, extends to the bottom of the inner wall of the foundation pit through the bottom of the surveyor 8 through the guide of the limit sleeve 7, and the base 1 is displaced through the support wheel 15, so that the surveyor 8 can contact the bottom of the inner wall of the foundation pit, and the surveyor 8 can move up and down along the guide of the limit sleeve 7 through the arc of the concave and convex ground. At the same time, when the surveyor 8 is displaced, it will drive the displacement sensor 9 to move, and then the concave and convex surface of the foundation pit is surveyed and mapped in combination with the surveyor 8 and displayed on the vertical plate 13, which makes it easy to understand the plane situation of the foundation pit, and the specific structure of the component is set as follows;

[0024] The surveying and mapping monitoring assembly includes a protective cover 2 arranged on the top of a base 1 for support, a first offset opening 3 is opened at the bottom of the protective cover 2 and located on the upper surface of the base 1, and a second offset opening 5 is opened through the protective cover 2;

[0025] A reinforcing support plate 4 installed on the base 1 is arranged in the first offset opening 3, a positioning groove 6 is opened on one side of the inner wall of the second offset opening 5, a limiting sleeve 7 is arranged in the positioning groove 6, and a surveying device 8 for surveying is slidably connected in the limiting sleeve 7.

[0026] A displacement sensor 9 is provided on the top of the surveyor 8, and the displacement sensor 9 is detachably connected to the surveyor 8 by bolts. The bottom of the limit sleeve 7 passes through the reinforced support plate 4 and extends to the bottom of the reinforced support plate 4. The reinforced support plate 4 is detachably connected to the limit sleeve 7. A supporting pad 10 is provided on the top of the reinforced support plate 4. A limiting outer stopper 11 installed on the reinforced support plate 4 for limiting the pad 10 is provided on the outer side of the pad 10. An electric push rod 12 for driving is provided on the top of the pad 10. A vertical plate 13 is provided at the output end of the electric push rod 12. A main unit 14 is provided on the top of the vertical plate 13. Support wheels 15 are provided at the four corners of the bottom of the base 1.

[0027] According to the above structure, when in use, the staff installs the device at a designated position. When monitoring the horizontal movement of the foundation pit, the bottom of the surveyor 8 is extended to the bottom of the inner wall of the foundation pit through the guidance of the limit sleeve 7, and the base 1 is displaced through the support wheel 15, so that the surveyor 8 can contact the bottom of the inner wall of the foundation pit. The surveyor 8 can move up and down along the guidance of the limit sleeve 7 through the arc of the concave and convex ground.

[0028] At the same time, when the surveyor 8 is displaced, the displacement sensor 9 will be driven to displace, and the concave and convex surface of the foundation pit will be surveyed and mapped by the surveyor 8 and displayed on the vertical plate 13, so that the plane condition of the foundation pit can be easily understood;

[0029] When the device is in use, it can be started by the electric push rod 12. The output end of the electric push rod 12 drives the vertical plate 13 to drive the main unit 14 to move upward, which is easy to adjust the height of the vertical plate 13 and easy for the staff to observe the monitoring results of the device.

[0030] Different from the prior art, the present application discloses an automatic monitoring system for deep horizontal displacement of a foundation pit, in which the bottom of the surveyor 8 is extended to the bottom of the inner wall of the foundation pit through the guidance of the limit sleeve 7, and the base 1 is displaced through the support wheel 15, so that the surveyor 8 can contact the bottom of the inner wall of the foundation pit, and the surveyor 8 can be displaced up and down along the guidance of the limit sleeve 7 through the arc of the uneven ground. At the same time, when the surveyor 8 is displaced, the displacement sensor 9 will be driven to displace, and then the uneven surface of the foundation pit is surveyed and mapped by the surveyor 8 and displayed on the vertical plate 13, which makes it easy to understand the plane situation of the foundation pit.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic monitoring system for deep horizontal displacement of a foundation pit, comprising a base (1) for support, characterized in that: The base (1) is provided with a surveying and monitoring component; The surveying and monitoring assembly comprises a protective cover (2) arranged on the top of the base (1) for support, a first offset opening (3) is provided at the bottom of the protective cover (2) and located on the upper surface of the base (1), and a second offset opening (5) is provided through the protective cover (2); A reinforcing support plate (4) mounted on the base (1) is arranged in the first offset opening (3), a positioning groove (6) is provided on one side of the inner wall of the second offset opening (5), a limiting sleeve (7) is arranged in the positioning groove (6), and a surveying device (8) for surveying is slidably connected in the limiting sleeve (7).

2. The automatic monitoring system for deep horizontal displacement of foundation pit according to claim 1 is characterized by: A displacement sensor (9) is arranged on the top of the surveyor (8), and the displacement sensor (9) is detachably connected to the surveyor (8) via bolts.

3. The automatic monitoring system for deep horizontal displacement of foundation pit according to claim 1 is characterized by: The bottom of the limiting sleeve (7) passes through the reinforcing support plate (4) and extends to the bottom of the reinforcing support plate (4); the reinforcing support plate (4) and the limiting sleeve (7) are detachably connected.

4. The automatic monitoring system for deep horizontal displacement of foundation pit according to claim 1 is characterized by: A pad (10) for supporting is arranged on the top of the reinforcing support plate (4), and a limiting outer stopper (11) installed on the reinforcing support plate (4) for limiting the pad (10) is arranged on the outer side of the pad (10).

5. The automatic monitoring system for deep horizontal displacement of foundation pit according to claim 4 is characterized by: An electric push rod (12) for driving is arranged on the top of the pad (10), and a vertical plate (13) is arranged at the output end of the electric push rod (12).

6. The automatic monitoring system for deep horizontal displacement of foundation pit according to claim 5 is characterized by: A main machine (14) is arranged on the top of the vertical plate (13), and supporting wheels (15) are arranged at the four corners of the bottom of the base (1).

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