Deep foundation pit slope surface displacement monitoring device and monitoring method

Abstract

The invention discloses a deep foundation pit slope surface displacement monitoring device and monitoring method, and belongs to the technical field of foundation pit monitoring devices. Comprising a fixing bottom plate, a positioning hole is formed in one side of the fixing bottom plate, an anchoring rod is arranged in the positioning hole, the fixing bottom plate needs to be placed on the horizontal plane and is fixed through the anchoring rod, an arc-shaped protection shell is arranged on the side, away from the anchoring rod, of the upper surface of the fixing bottom plate, and the arc-shaped protection shell is located in a slope during application. A contact assembly and a measuring cylinder are fixed to the fixed bottom plate, the contact assembly is attached to the slope face in a contact mode to obtain the distance position of the slope and the slope angle change, a display screen is fixed to the upper end of the measuring cylinder, and a power connector is arranged on one side of the measuring cylinder through a power line. The technical problems that a large number of monitoring parts need to be installed when a monitoring tool is used, the process is tedious, a large number of manpower and materials need to be used for operation, the use cost is too high, and on-site observation by personnel is not facilitated are solved.

Description

Technical Field

[0001] The invention relates to a deep foundation pit slope surface displacement monitoring device and a monitoring method, belonging to the technical field of foundation pit monitoring devices. Background Art

[0002] During the construction process, it is necessary to open a foundation pit as the foundation of the building. The foundation pit bears the weight of the building and the foundation load. Therefore, according to the size of the building, the foundation pit needs to be adjusted accordingly when it is opened. The construction period is usually long, and the slope of the foundation pit will undergo different degrees of displacement. If the displacement of the slope of the foundation pit is too large, it will affect the progress of the project. In some cases, slope collapse may occur, endangering the safety of personnel and buildings. Therefore, it is necessary to monitor the displacement of the slope surface frequently.

[0003] For example, the Chinese patent document, with the announcement number CN219909098U, discloses a foundation pit displacement monitoring tool, which drills holes on the foundation pit slope, installs anchor rods, and performs grouting. Bolts are threaded at the ends of the anchor rods, and prestress is applied with nuts. The transverse connection gaskets and vertical gaskets jointly generate restraint forces on the soil through the anchor rods. The signal transmitted by the strain gauge installed on the anchor rod by the early warning system is converted by the signal converter. The intervention of the early warning system directly reduces the safety risk. Under an effective monitoring cycle, the occurrence of foundation pit collapse accidents can be avoided. The early warning system can also realize real-time monitoring of foundation pit displacement and present a three-dimensional displacement map, providing a simple and convenient new way for construction monitoring.

[0004] However, the above monitoring tools need to install a large number of monitoring components when in use. The process is cumbersome and requires a large amount of manpower and material supply to operate. The cost of use is too high and it is not conducive to on-site observation by personnel.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a deep foundation pit slope surface displacement monitoring device and monitoring method in order to solve the above-mentioned problems. The device and monitoring method have the advantages of flexible installation, can quickly display the displacement distance of the slope, and can also collect data on the slope change, and then display it on the display screen.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions: a deep foundation pit slope surface displacement monitoring device, including a fixed base plate, a positioning hole is opened on one side of the fixed base plate, an anchor rod is arranged in the positioning hole, the fixed base plate needs to be placed on a horizontal plane, and itself is fixed by the anchor rod, an arc-shaped protective shell is arranged on the side of the upper surface of the fixed base plate away from the anchor rod, and the arc-shaped protective shell is located in the slope when used, a contact component and a measuring cylinder are fixed on the fixed base plate, the contact component obtains the distance position and slope angle change of the slope by contacting and fitting the slope surface, a display screen is fixed on the upper end of the measuring cylinder, and the display screen is used to display information to be displayed, such as the current slope displacement or display warning information, the operation of this device also requires an intelligent control system to carry out operation control, and by linkage with an external early warning component, the slope displacement information can be better transmitted remotely, and a power connector is arranged on one side of the measuring cylinder through a power cord.

[0008] Furthermore, in order to facilitate the fixation of the device, an upper notch is provided on the side of the arc-shaped protective shell close to the measuring cylinder, and the end away from the measuring cylinder is a closed end. The fixed bottom plate close to the closed end is gathered toward the center, and the arc-shaped protective shell is buried or placed on the edge of the slope. When the slope moves, the device will not be buried. At the same time, the arc-shaped protective shell can also increase the stability of the fixed bottom plate.

[0009] Furthermore, in order to facilitate limiting the horizontal movement trajectory of the interactive component, a support plate located below the upper notch is fixed on the fixed bottom plate, and limiting columns with the same height are fixed on both sides of the top of the support plate.

[0010] Furthermore, in order to better obtain the inclination degree and relative distance of the slope, the contact assembly includes a sliding component that is slidably clamped on the limit column, the first end of the sliding component extends above the arc-shaped protective shell, and a fitting plate is rotatably installed on the first end. The fitting plate can make the uneven slope equivalent to a plane, thereby facilitating data measurement and acquisition.

[0011] Furthermore, in order to facilitate the measurement of the horizontal displacement of the slope, a measuring scale is fixed to the second end of the sliding component, one end of the measuring scale extends to one side and passes through the measuring cylinder, and a transmission part composed of continuous teeth is provided on the upper surface of the measuring scale.

[0012] Furthermore, in order to facilitate the display of the degree of displacement, a lower shaft rod is fixed between the inner walls of the measuring cylinder, a force-bearing gear meshing with the transmission part is fixed on the lower shaft rod, a movable belt is connected to the lower shaft rod through a limiting wheel, the top end of the movable belt is looped on the upper shaft rod, an indicator frame is fixed on the side of the movable belt close to the display screen, a bar hole is opened on one side of the measuring cylinder, and the indicator frame extends through the bar hole to the outside of the measuring cylinder.

[0013] Furthermore, in order to facilitate the measurement of the change in the inclination of the slope, an infrared laser transmitter is rotatably installed on the surface of the measuring cylinder close to the bonding plate, a reflective layer is attached to the bonding plate, and a receiver capable of identifying infrared laser is installed on the side wall of the measuring cylinder, and the receivers are arranged above and below the infrared laser transmitter.

[0014] Furthermore, in order to facilitate the operational alignment of the infrared laser emitter, an auxiliary mechanism is provided on one side of the measuring cylinder, and the auxiliary mechanism includes a storage tube body rotatably installed on one side of the measuring cylinder, and a flat-head contact rod is slidably clamped in the storage tube body, and one end of the flat-head contact rod extends outside the storage tube body, and the flat-head contact rod is T-shaped.

[0015] A monitoring method for a deep foundation pit slope surface displacement monitoring device comprises the following steps:

[0016] Step 1: Determine the location, determine the location where the slope needs to be inspected and monitored, install the fixed base plate and plug it into the deep foundation pit slope through the anchor rod;

[0017] Step 2, horizontal monitoring: when the slope is inclined, the inclined surface causes the contact component to slide along the inner groove under its own weight through the sliding component, which includes an inner groove provided with a limit column, so that the measuring scale plate moves;

[0018] Then, the meshing force-bearing gear is driven to rotate, which drives the moving belt, thereby causing the indicator frame to move up and down;

[0019] Step 3, vertical monitoring;

[0020] Pull out the flat-head contact rod so that one end of the flat-head contact rod is perpendicular to the bonding board; then, adjust the infrared laser transmitter so that the emitted light beam can be perpendicular to the bonding board; in this way, when the slope changes inclination, the receiver can receive it and then determine the inclination change angle of the slope.

[0021] The technical effects and advantages of the present invention are as follows: the device has the advantage of flexible installation, and can quickly display the displacement distance of the slope, and can also collect data on the slope change of the slope, and then display it on the display screen. After being used in conjunction with an intelligent control device, it can cooperate with other early warning devices for joint early warning and information exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of another side of the present invention;

[0025] Figure 3 It is a cross-sectional schematic diagram of the auxiliary mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the contact assembly structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the measuring cylinder of the present invention;

[0028] Figure 6 This is a schematic diagram of the installation structure of the infrared laser transmitter of the present invention;

[0029] In the figure: 1. Fixed base plate; 101. Anchor rod; 102. Support plate; 103. Limit column; 2. Arc-shaped protective shell; 201. Upper notch; 3. Contact assembly; 301. Sliding component; 302. Laminating plate; 303. Measuring scale plate; 304. Transmission part; 305. Lower shaft rod; 306. Force gear; 307. Moving belt; 308. Indicator frame; 309. Upper shaft rod; 4. Measuring cylinder; 401. Display screen; 402. Infrared laser transmitter; 403. Receiver; 5. Auxiliary mechanism; 501. Storage tube; 502. Flat-head contact rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The application principle of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] See also Figure 1-Figure 6 As shown, a deep foundation pit slope surface displacement monitoring device includes a fixed base plate 1, a positioning hole is opened on one side of the fixed base plate 1, an anchor rod 101 is arranged in the positioning hole, the fixed base plate 1 needs to be placed on a horizontal plane, and is fixed by the anchor rod 101, an arc-shaped protective shell 2 is arranged on the side of the upper surface of the fixed base plate 1 away from the anchor rod 101, and the arc-shaped protective shell 2 is located in the slope when in use, a contact component 3 and a measuring cylinder 4 are fixed on the fixed base plate 1, the contact component 3 obtains the distance position and slope angle change of the slope by contacting and fitting the slope surface, a display screen 401 is fixed on the upper end of the measuring cylinder 4, and the display screen 401 is used to display information that needs to be displayed, such as the current slope displacement or display warning information, the operation of this device also requires an intelligent control system to carry out operation control, and by linking with an external early warning component, the slope displacement information can be better transmitted remotely, and a power connector is arranged on one side of the measuring cylinder 4 through a power cord.

[0034] An upper notch 201 is provided on one side of the arc-shaped protective shell 2 close to the measuring cylinder 4, and the end away from the measuring cylinder 4 is a closed end. The fixed base plate 1 close to the closed end is gathered toward the center, and the arc-shaped protective shell 2 is buried or placed on the edge of the slope. When the slope moves, the device will not be buried. At the same time, the arc-shaped protective shell 2 can also increase the stability of the fixed base plate 1, which can facilitate the fixation of the device.

[0035] A support plate 102 located below the upper notch 201 is fixed on the fixed bottom plate 1 , and limiting columns 103 of the same height are fixed on both sides of the top of the support plate 102 , which can facilitate limiting the horizontal movement trajectory of the interactive component.

[0036] The contact assembly 3 includes a sliding component 301 that is slidably connected to the limit column 103. The first end of the sliding component 301 extends above the arc-shaped protective shell 2, and a fitting plate 302 is rotatably installed on the first end. The fitting plate 302 can make the uneven slope equivalent to a plane, so as to facilitate data measurement and acquisition, so that the inclination degree and relative distance of the slope can be better obtained. A measuring scale plate 303 is fixed to the second end of the sliding component 301. One end of the measuring scale plate 303 extends to one side and passes through the measuring cylinder 4. A transmission part 304 composed of continuous teeth is provided on the upper surface of the measuring scale plate 303, so that the horizontal displacement of the slope can be conveniently measured. A lower shaft is fixed between the inner walls of the measuring cylinder 4. Rod 305, a force-bearing gear 306 meshing with the transmission part 304 is fixed on the lower shaft rod 305, a moving belt 307 is connected to the lower shaft rod 305 through a limiting wheel, the top end of the moving belt 307 is looped on the upper shaft rod 309, an indicator frame 308 is fixed on the side of the moving belt 307 close to the display screen 401, a bar hole is opened on one side of the measuring cylinder 4, the indicator frame 308 extends through the bar hole to the outside of the measuring cylinder 4, so that the degree of displacement can be displayed conveniently. When in use, when the slope undergoes horizontal displacement, it will push the sliding component 301 and thus move the measuring scale plate 303, and then drive the indicator frame 308 to move through the moving belt 307, thereby showing the displacement of the slope.

[0037] An infrared laser transmitter 402 is rotatably mounted on one side of the measuring cylinder 4 close to the bonding plate 302, and a reflective layer is attached to the bonding plate 302. A receiver 403 capable of identifying infrared lasers is mounted on the side wall of the measuring cylinder 4, and receivers 403 are arranged above and below the infrared laser transmitter 402, so that it is convenient to measure the change in the inclination of the slope. An auxiliary mechanism 5 is provided on one side of the measuring cylinder 4, and the auxiliary mechanism 5 includes a storage tube body 501 rotatably mounted on one side of the measuring cylinder 4, and a flat-head contact rod 502 is slidably engaged in the storage tube body 501, and one end of the flat-head contact rod 502 extends outside the storage tube body 501, and the flat-head contact rod 502 is T-shaped, so that it is convenient to operate and align the infrared laser transmitter 402.

[0038] A monitoring method for a deep foundation pit slope surface displacement monitoring device comprises the following steps:

[0039] Step 1, position determination, determine the position of the slope that needs to be detected and monitored, install the fixed base plate 1 and plug it into the deep foundation pit slope through the anchor rod 101;

[0040] Step 2, horizontal monitoring: when the slope is inclined, the inclined surface causes the contact component 3 to slide along the inner groove of the sliding component 301 under its own weight, and the sliding component 301 includes an inner groove provided with the installation limit column 103, so that the measuring scale plate 303 moves;

[0041] Then, the meshed force-bearing gear 306 is driven to rotate, thereby driving the moving belt 307, so that the indicating frame 308 moves up and down;

[0042] Step 3, vertical monitoring;

[0043] Pull out the flat-head contact rod 502 so that one end of the flat-head contact rod 502 is perpendicular to the bonding plate 302; then, adjust the infrared laser transmitter 402 so that the emitted light beam can be perpendicular to the bonding plate 302; in this way, when the slope changes inclination, the receiver 403 can receive it, and then determine the inclination change angle of the slope. The receiver 403 is added according to demand.

[0044] The present invention has the advantage of flexible installation when in use, and can quickly display the displacement distance of the slope, and can also collect data on the slope change of the slope, and then display it on the display screen 401. After being used in conjunction with the intelligent control device, it can cooperate with other early warning devices for joint early warning and information exchange.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A deep foundation pit slope surface displacement monitoring device, comprising a fixed base plate (1), a positioning hole is opened on one side of the fixed base plate (1), and an anchor rod (101) is installed in the positioning hole; Features: An arc-shaped protective shell (2) is provided on the side of the upper surface of the fixed base plate (1) away from the anchor rod (101), and a contact assembly (3) and a measuring cylinder (4) are installed on the fixed base plate (1). A display screen (401) is fixed to the upper end of the measuring cylinder (4), and a power connector is provided on one side of the measuring cylinder (4) via a power cord.

2. A deep foundation pit slope surface displacement monitoring device according to claim 1, characterized in that: The arc-shaped protective shell (2) is provided with an upper notch (201) on one side close to the measuring cylinder (4), and the end away from the measuring cylinder (4) is a closed end and is closed with the fixed bottom plate (1); the side plates on both sides of the fixed bottom plate (1) are retracted toward the horizontal center line near the closed end.

3. A deep foundation pit slope surface displacement monitoring device according to claim 2, characterized in that: A support plate (102) located in the upper notch (201) is fixed on the fixed bottom plate (1), and the top height of the support plate (102) is higher than the height of the upper notch (201); Limiting columns (103) are fixedly mounted on both sides of the top end of the support plate (102) and have the same height and are higher than the support plate (102).

4. A deep foundation pit slope surface displacement monitoring device according to claim 3, characterized in that: The contact assembly (3) comprises a sliding component (301) slidably engaged with the limiting column (103); the two ends of the sliding component (301) are respectively a first end and a second end, the first end of the sliding component (301) extends above the arc-shaped protective shell (2), and a fitting plate (302) is rotatably mounted on the first end.

5. A deep foundation pit slope surface displacement monitoring device according to claim 4, characterized in that: A measuring scale plate (303) is fixed to the second end of the sliding component (301), and the measuring scale plate (303) is extended on the side facing away from the bonding plate (302) and passes through the measuring cylinder (4). A transmission part (304) composed of continuous teeth is provided on the upper surface of the measuring scale plate (303).

6. A deep foundation pit slope surface displacement monitoring device according to claim 5, characterized in that: A lower shaft (305) is installed in the measuring cylinder (4), a force-bearing gear (306) meshing with the transmission part (304) is fixed on the lower shaft (305), a moving belt (307) is connected to the lower shaft (305) via a limiting wheel, and the top end of the moving belt (307) is looped on the upper shaft (309); An indicator frame (308) is fixed on one side of the moving belt (307) close to the display screen (401), and a strip hole is opened on one side of the measuring cylinder (4), and the indicator frame (308) passes through the strip hole and extends to the outside of the measuring cylinder (4).

7. A deep foundation pit slope surface displacement monitoring device according to claim 4, characterized in that: An infrared laser transmitter (402) is rotatably mounted on one side of the measuring cylinder (4) close to the bonding plate (302); a reflective layer is attached to the bonding plate (302), and a receiver (403) capable of identifying infrared laser is mounted on the side wall of the measuring cylinder (4); Receivers (403) are arranged above and below the infrared laser transmitter (402).

8. The deep foundation pit slope surface displacement monitoring device according to claim 7, characterized in that: An auxiliary mechanism (5) is provided on one side of the measuring cylinder (4), and the auxiliary mechanism (5) comprises a storage tube (501) rotatably mounted on one side of the measuring cylinder (4), a flat-head contact rod (502) being slidably engaged in the storage tube (501), and one end of the flat-head contact rod (502) extending out of the storage tube (501); the flat-head contact rod (502) is T-shaped, and the bottom is horizontal.

9. A monitoring method for the deep foundation pit slope surface displacement monitoring device as claimed in claim 8, characterized in that: The following steps are involved: Step 1, position determination, determine the position of the slope that needs to be detected and monitored, install the fixed base plate (1) and plug it into the deep foundation pit slope through the anchor rod (101); Step 2, horizontal monitoring: when the slope is inclined, the inclined surface causes the contact component (3) to slide under its own weight through the sliding component (301), the sliding component (301) including an internal groove provided with a stop column (103), and the sliding component (301) slides along the internal groove, so that the measuring scale plate (303) moves; Then, the meshing force-bearing gear (306) is driven to rotate, thereby driving the moving belt (307), thereby causing the indicating frame (308) to move up and down; Step 3, vertical monitoring; Pull out the flat-head contact rod (502) so that one end of the flat-head contact rod (502) is perpendicular to the bonding plate (302); then, adjust the infrared laser transmitter (402) so that the emitted light beam can be perpendicular to the bonding plate (302); in this way, when the slope changes inclination, the receiver (403) can receive it, and then determine the inclination change angle of the slope.

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