CN212001306U - Foundation pit horizontal displacement monitoring device - Google Patents

Abstract

The utility model relates to an engineering survey technical field discloses a foundation ditch horizontal displacement monitoring devices, including first casing, monitoring board, moving mechanism, displacement measurement mechanism, photosensitive sensor and controller, the monitoring board is located on the first casing, moving mechanism with displacement measurement mechanism with first casing is connected, photosensitive sensor locates on the monitoring board, moving mechanism with photosensitive sensor respectively with controller electric connection. The monitoring board can be utilized to acquire the vertical laser downwards emitted by the laser plummet, the photosensitive sensor can be utilized to automatically acquire the central point of the laser, the moving mechanism enables the photosensitive sensor to coincide with the central point of the laser, the displacement measuring mechanism acquires the deep horizontal displacement deformation amount of the point, the monitoring board can be directly installed on the monitoring point, and drilling is not needed to be carried out, and the monitoring board is buried or pre-buried.

Description

Foundation pit horizontal displacement monitoring device

Technical Field

The utility model relates to an engineering survey technical field especially relates to a foundation ditch horizontal displacement monitoring devices.

Background

At present, the deep horizontal displacement monitoring work of the traditional foundation pit monitoring engineering mainly relies on the inclinometer pipe which is buried in advance for monitoring, the inclinometer pipe is buried in advance and mainly has two methods of drilling burying and burying (binding and putting together with a reinforcement cage), however, the two methods have more problems in the process of burying and later use, the inclinometer pipe is easily damaged, meanwhile, the monitoring site environment is complex and changeable, the inclinometer pipe is also easily blocked at the bottom of the inclinometer pipe by falling sand and broken stones in the use process, so that an inclinometer probe cannot reach the bottom of the inclinometer pipe, the deep horizontal displacement below the blocking position cannot be measured, and the effect of monitoring the deep horizontal displacement is lost.

In addition, the depth of the foundation pit is large, the buried depth of the foundation rock is shallow, and because the support piles (underground continuous walls) are difficult to enter the medium-to-slightly weathered rock, the bottoms of the support piles (underground continuous walls) do not reach a certain depth below the pit bottom, so that a unique support type of 'hanging foot piles (underground continuous walls)' isformed. And (3) adopting a rock-socketed and prestressed anchor cable treatment mode at the bottom lock foot of the pile (underground continuous wall), namely socketed by 2-3 m, and simultaneously locking the foot by using the prestressed anchor cable. When the foundation pit is excavated to the middle and slightly weathered rock stratum, the integrity of the middle and slightly weathered rock stratum under the foot-hanging pile (underground continuous wall) can be influenced due to blasting construction, in addition, the middle and slightly weathered rock saccular fully-strong weathered rock develops, and the foundation pit has the risk of generating integral bedding slippage along the foot-hanging pile (underground continuous wall). The upper part of the foundation pit support is provided with a foot-hanging pile (underground continuous wall), the lower part of the foundation pit support is provided with a spray anchor support, so that the length of the inclinometer pipe is limited, the width of the outer rock shoulder of the foot-hanging pile (underground continuous wall) is small, the middle and micro weathered rock stratum under the foot-hanging pile (underground continuous wall) cannot be drilled and buried, and the middle and micro weathered rock stratum under the foot-hanging pile (underground continuous wall) cannot be monitored by deep horizontal displacement. In addition, in some high and steep dangerous slope emergency monitoring, foundation pit emergency rescue or reinforcement projects, for example, under the conditions that water leakage and sand gushing occur or cracking occur in a support pile (underground continuous wall), deep horizontal displacement monitoring needs to be carried out on the pile (underground continuous wall) at the specified position, the situation that the inclinometer is not allowed to be buried again for emergency monitoring or emergency monitoring is not allowed, and the deep horizontal displacement monitoring is difficult to carry out.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: how to realize the foundation pit horizontal displacement monitoring device which can be installed on the spot does not need to be drilled and embedded or pre-embedded.

In order to solve the technical problem, the utility model provides a foundation ditch horizontal displacement monitoring devices, including first casing, monitoring board, moving mechanism, displacement measurement mechanism, photosensitive sensor and controller, the monitoring board is located on the first casing, moving mechanism with displacement measurement mechanism with first casing is connected, photosensitive sensor locates on the monitoring board, moving mechanism with photosensitive sensor respectively with controller electric connection.

Preferably, the displacement measuring mechanism is an electronic vernier caliper, the electronic vernier caliper is arranged on the moving mechanism, and the electronic vernier caliper is electrically connected with the controller.

Preferably, the monitoring plate is a circular plate, and the photosensitive sensor is arranged at the center of the monitoring plate.

As the preferred scheme, the monitoring plate is provided with circular ring scale marks.

Preferably, the first shell is provided with horizontal air bubbles.

Preferably, a second shell is arranged on one side of the first shell, and a reflecting plate is arranged on the second shell.

Preferably, the first housing is perpendicular to the second housing.

Preferably, the controller is provided with a wireless transmission module for transmitting data to the mobile terminal.

The utility model provides a foundation ditch horizontal displacement monitoring devices compares with prior art, and its beneficial effect lies in:

the utility model discloses it is usable the monitoring panel acquires laser plumb aligner launches vertically laser downwards, utilizes photosensitive sensor automatic acquisition laser's central point, through controller control the moving mechanism drive first casing with the monitoring panel removes, makes photosensitive sensor coincides with the central point of laser, at this in-process, utilizes displacement measurement mechanism automatic acquisition the displacement of monitoring panel, this displacement is exactly the deep horizontal displacement deformation volume of this point promptly, this monitoring devices the moving mechanism can direct mount to the monitoring point that needs to monitor deep horizontal displacement, need not to waste a large amount of manpower, material resources and time and drills underground or bury underground in advance.

Drawings

Fig. 1 is the utility model discloses preferred embodiment's foundation ditch horizontal displacement monitoring devices's schematic structure diagram.

Fig. 2 is another view structure diagram of the foundation pit horizontal displacement monitoring device according to the preferred embodiment of the present invention.

Fig. 3 is a schematic view of a state of use of the foundation pit horizontal displacement monitoring device according to the preferred embodiment of the present invention.

Fig. 4 is a schematic view of another view angle of the foundation pit horizontal displacement monitoring device according to the preferred embodiment of the present invention.

In the figure:

10. a monitoring device; 11. a first housing; 12. a monitoring plate; 13. a moving mechanism; 14. a displacement measuring mechanism; 15. a photosensitive sensor; 16. horizontal bubbles; 17. a second housing; 18. a reflective plate;

20. laser plummet.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral body; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-2, the utility model discloses preferred embodiment provides a foundation ditch horizontal displacement monitoring devices 10, including first casing 11, monitoring board 12, moving mechanism 13, displacement measurement mechanism 14, photosensitive sensor 15 and controller, monitoring board 12 is located on the first casing 11, moving mechanism 13 with displacement measurement mechanism 14 with first casing 11 is connected, photosensitive sensor 15 locates on the monitoring board 12, moving mechanism 13 with photosensitive sensor 15 respectively with controller electric connection.

Based on the foundation ditch horizontal displacement monitoring devices 10 of above-mentioned technical characteristics, usable monitoring panel 12 acquires laser plummet 20 and launches vertically laser downwards, utilizes photosensitive sensor 15 acquires the central point of laser automatically, through controller control moving mechanism 13 drive first casing 11 with monitoring panel 12 removes, makes photosensitive sensor 15 and the coincidence of the central point of laser, and at this in-process, utilize displacement measurement mechanism 14 acquires automatically the displacement of monitoring panel 12, and this displacement is exactly the deep horizontal displacement deformation volume of this point promptly, and this monitoring devices 10 moving mechanism 13 can directly install on the monitoring point that needs to monitor deep horizontal displacement, need not to waste a large amount of manpower, material resources and time and carry out drilling and bury underground or bury underground in advance.

In this embodiment, moving mechanism 13 is automatic telescopic link, on the monitoring point was located to moving mechanism 13's stiff end, moving mechanism 13's flexible end with first casing 11 is connected under the drive of controller, moving mechanism 13 can utilize the driving piece to drive first casing 11 removes, reaches and lets photosensitive sensor 15 carries out the mesh of coincidence with the central point of laser, at initial condition, the surface coincidence of moving mechanism 13's zero scale position variant, in the measurement process, the distance that the control board removed to laser central point is the offset of the initial vertical starting position that the monitoring point found for laser plummet 20, the deep level displacement deformation volume of this point promptly. It is understood that the moving mechanism 13 can be driven by a telescopic cylinder or the like, and the detailed structure thereof is not described herein.

In this embodiment, the displacement measuring mechanism 14 is an electronic vernier caliper, the electronic vernier caliper is arranged on the moving mechanism 13, the electronic vernier caliper is electrically connected with the controller, and the distance from the photosensitive sensor 15 to the laser center of the laser plummet 20 is obtained by acquiring the distance moved by the moving mechanism 13 through the electronic vernier caliper, so that the numerical value is automatically read, a technician is not required to perform manual measurement and recording, and the method is real-time, simple, convenient, and fast and efficient in operation.

In this embodiment, monitoring board 12 is the circular plate, photosensitive sensor 15 locates the center of monitoring board 12 will photosensitive sensor 15 sets up the central point of monitoring board 12 puts, works as when photosensitive sensor 15 and the central point coincidence of laser, can very directly perceivedly see this monitoring devices 10 and have adjusted in place, is convenient for simultaneously photosensitive sensor 15 acquires peripheral laser information.

Furthermore, the monitoring plate 12 is provided with a ring scale mark to ensure that the reading can be manually carried out under special conditions.

In this embodiment, the horizontal air bubble 16 is disposed on the first housing 11, and is used to help a technician level the device when installing the device, so that the installed device can ensure the level, the subsequent measurement process is not affected, and the accuracy and the tightness of the measurement data are ensured.

In this embodiment, a second housing 17 is disposed on one side of the first housing 11, a reflective plate 18 is disposed on the second housing 17, when the first housing 11 moves, the second housing 17 can be driven to move, and the reflective plate 18 or other reflective marks are attached to the second housing 17, so that the deep horizontal displacement of a monitoring point can be monitored by using conventional means such as a total station, and the total station can be used to measure a distance, an angle and a three-dimensional coordinate point thereof, i.e., the deep horizontal displacement of the monitoring point can be monitored at the same time, and the settlement measurement can be completed.

Wherein, the first housing 11 is perpendicular to the second housing 17, which ensures that the monitoring board 12 on the first housing 11 and the reflection board 18 on the second housing 17 will not interfere with each other.

In this embodiment, the controller is provided with a wireless transmission module for transmitting data to the mobile terminal, and the value automatically read by the displacement measurement mechanism 14 can be automatically uploaded to the terminal through the wireless transmission module such as the WiFi module or the bluetooth module of the controller and stored to perform subsequent calculation work, so that a technician is not required to perform manual measurement and recording, and full automation and digitization of the monitoring process are realized.

To sum up, the embodiment of the utility model provides a foundation ditch horizontal displacement monitoring devices 10 has following advantage: (1) the installation is convenient, and is not limited by the operating environment. The monitoring device 10 can be installed on site at any time and any place, and does not need to waste a large amount of manpower, material resources and time for drilling and embedding or pre-embedding, as shown in fig. 3 and 4, can monitor the horizontal displacement of a deep layer under the conditions that the bottom of an inclinometer is blocked, the inclinometer cannot reach a medium and slightly weathered rock stratum, a high and steep slope collapse disaster, a foundation pit support pile (underground diaphragm wall) leaks water and gushes sand, and the like, and plays an important role in emergency work. (2) Digital and full-automatic operation. This monitoring devices 10 can accomplish the measurement automatically and read numerical value to with measured data through bluetooth or wiFi transmission to customer end, do not need the technical staff to carry out manual measurement record, real-time, simple and convenient, the operation is swift and high-efficient. (3) Collect multiple functions in an organic whole, save monitoring point set cost and time. The monitoring device 10 can not only utilize the laser plummet 20 to combine with the monitoring plate 12 to measure the deep horizontal displacement, but also the reflecting plate 18 can help instruments such as a total station to measure the distance, the angle and the three-dimensional coordinate point thereof, thus simultaneously monitoring the deep horizontal displacement and completing the work such as settlement measurement, saving the measuring point laying cost and time in the construction and installation process and better meeting the complex operation environment.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a foundation ditch horizontal displacement monitoring devices, its characterized in that, includes first casing, monitoring board, moving mechanism, displacement measurement mechanism, photosensitive sensor and controller, the monitoring board is located on the first casing, moving mechanism with displacement measurement mechanism with first casing is connected, photosensitive sensor locates on the monitoring board, moving mechanism with photosensitive sensor respectively with controller electric connection.

2. The foundation pit horizontal displacement monitoring device of claim 1, wherein the displacement measuring mechanism is an electronic vernier caliper, the electronic vernier caliper is arranged on the moving mechanism, and the electronic vernier caliper is electrically connected with the controller.

3. The foundation pit horizontal displacement monitoring device of claim 1, wherein the monitoring plate is a circular plate, and the photosensitive sensor is arranged at the center of the monitoring plate.

4. The foundation pit horizontal displacement monitoring device of claim 3, wherein the monitoring plate is provided with annular scale marks.

5. The foundation pit horizontal displacement monitoring device of claim 1, wherein the first housing is provided with a horizontal bubble.

6. The foundation pit horizontal displacement monitoring device of claim 1, wherein a second shell is arranged on one side of the first shell, and a reflecting plate is arranged on the second shell.

7. The foundation pit horizontal displacement monitoring device of claim 6, wherein the first housing is perpendicular to the second housing.

8. The foundation pit horizontal displacement monitoring device of any one of claims 1 to 7, wherein the controller is provided with a wireless transmission module for transmitting data to a mobile terminal.

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