Device for monitoring internal displacement change of side slope anchor rod

Abstract

The utility model provides a monitoring device for internal displacement change of a side slope anchor rod, and relates to the technical field of side slope anchor rod monitoring. The monitoring device comprises an anchor rod, a data transmission module, a power supply unit and a plurality of monitoring assemblies. All the monitoring assemblies are sequentially arranged on the anchor rod at intervals in the length direction of the anchor rod; the anchor rod is arranged in a drill hole reserved in the side slope; each monitoring assembly comprises a displacement monitoring component and a tensioning elastic component. The displacement monitoring part is arranged on the anchor rod and tightly attached to the inner wall of the drill hole through the tensioning elastic part, and the tensioning elastic part is in a compressed state; the displacement monitoring part is connected with the data transmission module through a signal line; the displacement monitoring part is connected with the power supply unit through a wire. By adopting the monitoring device, the internal displacement change data of the anchor rod at different depths of the side slope can be obtained, and further the depth of an internal unfavorable structural surface which affects the stability of the side slope can be directly and accurately judged.

Description

Technical Field

[0001] The utility model relates to the technical field of slope anchor monitoring, in particular to a monitoring device for internal displacement changes of a slope anchor. Background Art

[0002] Anchor rods are important components used to fix support structures or reinforce geological bodies in slope protection projects. Specifically, anchor rods play an important role in resisting groundwater pressure, protecting slope safety, and reinforcing ground structures. Anchor rods are usually composed of steel rods (rebars) and mortar and other materials. The support principle is to change the stress state of a certain range of rock mass in the surrounding rock from unidirectional (or bidirectional) compression to tridirectional compression through the axial force of the anchor rod, thereby improving its circumferential compressive strength, so that the compression zone can bear both its own weight and a certain external load, so that it can effectively control the deformation of the surrounding rock.

[0003] Slope anchor monitoring is an important part of engineering construction and is of great significance to the safety and reliability of engineering construction. Through slope anchor monitoring, geological changes can be predicted for risk assessment and management, making engineering construction more stable and reliable. In addition, slope anchor monitoring can also reduce unnecessary repairs and adjustments, thereby reducing costs and risks.

[0004] There are many methods for monitoring slope anchors, and common methods include: fiber Bragg grating sensor monitoring, deformation observation method, stress observation method, digital measurement method, etc. These existing slope anchor monitoring methods can not only monitor the anchors comprehensively, but also identify different types of monitoring data, thereby improving the accuracy and reliability of monitoring. Although the existing slope anchor monitoring methods are relatively mature, there are still some problems in practical applications, that is, they can only monitor the deformation displacement of the anchor head and the internal force of the anchor, and further convert the internal displacement deformation through the anchor force, but there is no device and method for directly monitoring the internal displacement deformation of the anchor, and it is difficult to directly and accurately determine the depth of the internal unfavorable structural surface that affects the stability of the slope.

[0005] In summary, a monitoring device for the internal displacement change of a slope anchor is needed to solve the problem in the prior art that the internal displacement deformation of the anchor cannot be directly monitored. Utility Model Content

[0006] The utility model aims to provide a monitoring device for the internal displacement change of a slope anchor rod, and the specific technical scheme is as follows:

[0007] A monitoring device for internal displacement changes of a slope anchor, comprising an anchor, a data transmission module, a power supply unit and a plurality of monitoring components for monitoring internal displacement changes of the slope anchor; all monitoring components are arranged on the anchor at intervals in sequence along the length direction of the anchor; the anchor is arranged in a borehole reserved on the slope; each group of monitoring components includes a displacement monitoring component and a tensioning elastic component; the displacement monitoring component is arranged on the anchor, and is closely attached to the inner wall of the borehole through the tensioning elastic component, and the tensioning elastic component is in a compressed state; the displacement monitoring component is connected to the data transmission module through a signal line; the displacement monitoring component is connected to the power supply unit through a wire.

[0008] Optionally, the number of the tensioning elastic components is at least two, and they are arranged on the displacement monitoring component at equal intervals.

[0009] Optionally, the tensioning elastic component includes a first elastic sheet, which is obliquely arranged on the displacement monitoring component and is arranged at an obtuse angle to the direction in which the anchor rod is inserted into the borehole.

[0010] Optionally, the tensioning elastic component further includes a second elastic sheet, which is arranged on an end of the first elastic sheet away from the displacement monitoring component and is arranged toward the inner wall of the borehole.

[0011] Optionally, the device for monitoring displacement changes inside the slope anchor rod further comprises a sleeve, wherein the sleeve is sleeved on the anchor rod and is arranged closely to the anchor rod; a mounting hole is arranged on the sleeve, and the monitoring assembly is connected to the mounting hole via a locking member.

[0012] Optionally, a glue layer is provided between the casing and the anchor rod.

[0013] Optionally, the monitoring device for internal displacement changes of the slope anchor further includes a concrete filling layer, which is arranged in the borehole and located in a gap enclosed by an inner wall of the borehole, the casing and the monitoring assembly.

[0014] Optionally, the power supply unit includes a battery and a photovoltaic panel, and the battery and the photovoltaic panel are connected by a wire.

[0015] Optionally, the monitoring device for internal displacement changes of the slope anchor further includes a server and a monitoring platform, one end of the server is connected to the data transmission module, and the other end of the server is connected to the monitoring platform.

[0016] The application of the technical solution of the utility model has at least the following beneficial effects:

[0017] The utility model provides a monitoring device for the internal displacement changes of a slope anchor rod, which adopts a plurality of monitoring components for monitoring the internal displacement changes of the slope anchor rod; all the monitoring components are arranged on the anchor rod in sequence and at intervals along the length direction of the anchor rod; in the monitoring component, the displacement monitoring component monitors the internal displacement changes of the slope anchor rod in real time through the tensioning elastic component, obtains the internal displacement change data of the anchor rod at different depths of the slope, and then directly and accurately determines the depth of the internal unfavorable structural surface that affects the stability of the slope.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a cross-sectional view of a monitoring device for internal displacement changes of a slope anchor in an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 A magnified image of area A;

[0022] Among them, 1. anchor rod, 2. data transmission module, 3. displacement monitoring component, 4. tensioning elastic component, 4.1. first elastic sheet, 4.2. second elastic sheet, 5. casing, 6. concrete filling layer, 7. battery, 8. photovoltaic panel, 9. signal line, B. drilling. DETAILED DESCRIPTION

[0023] 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 belong to the scope of protection of the utility model.

[0024] Example:

[0025] See also Figure 1-2A monitoring device for internal displacement changes of a slope anchor, comprising an anchor 1, a data transmission module 2 (specifically a 4G communicator for transmitting data), a power supply unit and a plurality of monitoring components for monitoring internal displacement changes of the slope anchor 1; all monitoring components are arranged on the anchor 1 in sequence and at intervals along the length direction of the anchor 1, wherein the number of the monitoring components and the size of the anchor 1 are determined according to actual conditions; the anchor 1 is arranged in a borehole B reserved on the slope; each group of monitoring components includes a displacement monitoring component 3 (specifically a displacement sensor) and a tensioning elastic component 4; the displacement monitoring component 3 is arranged on the anchor 1, and is closely attached to the inner wall of the borehole B through the tensioning elastic component 4, the tensioning elastic component 4 is in a compressed state, and is an integrated structure with the displacement monitoring component 3; the displacement monitoring component 3 is connected to the data transmission module 2 through a signal line 9; the displacement monitoring component 3 is connected to the power supply unit through a wire.

[0026] The number of the tensioning elastic components 4 is three, and they are arranged on the displacement monitoring component 3 at equal intervals, so as to provide a stable supporting force for the displacement monitoring component 3 .

[0027] The tensioning elastic component 4 includes a first elastic sheet 4.1, which is obliquely arranged on the displacement monitoring component 3 and is arranged at an obtuse angle to the direction in which the anchor rod 1 is inserted into the borehole B, so as to facilitate the insertion of the anchor rod 1 into the borehole B. It is also convenient for the first elastic sheet 4.1 to be in a compressed state after the anchor rod 1 is inserted into the borehole B, so as to be tightly attached to the inner wall of the borehole B, thereby preventing the anchor rod 1 from slipping out of the borehole B.

[0028] The tensioning elastic component 4 also includes a second elastic sheet 4.2, which is arranged on an end of the first elastic sheet 4.1 away from the displacement monitoring component 3 and is arranged toward the inner wall of the borehole B, so as to increase the friction between the tensioning elastic component 4 and the inner wall of the borehole B, provide a stable supporting force for the displacement monitoring component 3, and ensure the reliability of the monitoring result.

[0029] The monitoring device for the internal displacement change of the slope anchor also includes a sleeve 5, which is sleeved on the anchor 1 (if necessary, a lubricant can be coated on the anchor 1 to make it easier for the sleeve 5 to be sleeved on the anchor 1), and is arranged in close contact with the anchor 1; a mounting hole is set on the sleeve 5, and a mounting hole is also set at a corresponding position of the anchor 1 simultaneously, and the monitoring component is connected to the mounting holes on the sleeve 5 and the anchor 1 through a locking member (specifically a bolt), so as to enhance the installation effect of the monitoring component.

[0030] A glue layer is provided between the sleeve 5 and the anchor rod 1 to facilitate the sleeve 5 and the anchor rod 1 to form an integrated structure.

[0031] The monitoring device for the internal displacement change of the slope anchor rod also includes a concrete filling layer 6, which is arranged in the borehole B and is located in the gap surrounded by the inner wall of the borehole B, the casing 5 and the monitoring component, so as to strengthen the stability of the monitoring component and the anchor rod 1 in the borehole B and improve the monitoring accuracy.

[0032] The power supply unit includes a storage battery 7 and a photovoltaic panel 8. The storage battery 7 and the photovoltaic panel 8 are connected by a wire to achieve energy saving through solar power generation.

[0033] The monitoring device for the internal displacement change of the slope anchor also includes a server (not shown in the figure) and a monitoring platform (not shown in the figure), one end of the server is connected to the data transmission module 2, and the other end is connected to the monitoring platform.

[0034] A method for monitoring displacement changes inside a slope anchor bolt, comprising:

[0035] Step S1, assembling the monitoring device for displacement changes inside the slope anchor, and supplying power to the displacement monitoring component 3 through the power supply unit;

[0036] Step S2, the displacement monitoring component 3 monitors the internal displacement changes of the slope anchor 1 in real time through the tensioning elastic component 4, and obtains the internal displacement change data of the anchor 1 at different depths of the slope. The data is transmitted to the data transmission module 2 through the signal line 9, and then transmitted to the server by the data transmission module 2. After being stored and processed by the server, the monitoring platform displays the monitoring results in real time.

[0037] The present embodiment adopts the method for monitoring the internal displacement changes of the slope anchor rod 1 to monitor the internal displacement changes of the slope anchor rod 1 in real time, obtain the internal displacement change data of the anchor rod 1 at different depths of the slope, and then directly and accurately determine the depth of the internal unfavorable structural surface that affects the stability of the slope.

[0038] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A monitoring device for internal displacement changes of slope anchor bolts, characterized in that: The invention comprises an anchor rod (1), a data transmission module (2), a power supply unit and a plurality of monitoring components for monitoring displacement changes inside the slope anchor rod (1); all monitoring components are arranged on the anchor rod (1) at intervals in sequence along the length direction of the anchor rod (1); the anchor rod (1) is arranged in a borehole (B) reserved on the slope; each group of monitoring components comprises a displacement monitoring component (3) and a tensioning elastic component (4); the displacement monitoring component (3) is arranged on the anchor rod (1) and is closely attached to the inner wall of the borehole (B) through the tensioning elastic component (4), and the tensioning elastic component (4) is in a compressed state; the displacement monitoring component (3) is connected to the data transmission module (2) through a signal line (9); and the displacement monitoring component (3) is connected to the power supply unit through a wire.

2. The monitoring device for internal displacement changes of slope anchor rods according to claim 1, characterized in that: The number of the tensioning elastic components (4) is at least two, and they are arranged on the displacement monitoring component (3) at equal intervals.

3. The monitoring device for internal displacement changes of slope anchor rods according to claim 1, characterized in that: The tensioning elastic component (4) comprises a first elastic sheet (4.1), the first elastic sheet (4.1) being arranged obliquely on the displacement monitoring component (3) and being arranged at an obtuse angle to the direction in which the anchor rod (1) is inserted into the borehole (B).

4. The monitoring device for internal displacement changes of slope anchor rods according to claim 3, characterized in that: The tensioning elastic component (4) further comprises a second elastic sheet (4.2), wherein the second elastic sheet (4.2) is arranged on an end of the first elastic sheet (4.1) away from the displacement monitoring component (3) and is arranged toward the inner wall of the borehole (B).

5. The monitoring device for internal displacement changes of slope anchor rods according to claim 1, characterized in that: It also comprises a sleeve (5), the sleeve (5) being sleeved on the anchor rod (1) and being arranged closely to the anchor rod (1); a mounting hole is arranged on the sleeve (5), and the monitoring component is connected to the mounting hole via a locking member.

6. The monitoring device for internal displacement changes of slope anchors according to claim 5, characterized in that: A glue layer is provided between the sleeve (5) and the anchor rod (1).

7. The monitoring device for internal displacement changes of slope anchors according to claim 5, characterized in that: It also comprises a concrete filling layer (6), wherein the concrete filling layer (6) is arranged in the borehole (B) and is located in a gap enclosed by the inner wall of the borehole (B), the casing (5) and the monitoring component.

8. The monitoring device for internal displacement changes of slope anchors according to claim 1, characterized in that: The power supply unit comprises a storage battery (7) and a photovoltaic panel (8), and the storage battery (7) and the photovoltaic panel (8) are connected via a wire.

9. The monitoring device for internal displacement change of a slope anchor according to any one of claims 1 to 8, characterized in that: It also comprises a server and a monitoring platform, wherein one end of the server is connected to the data transmission module (2), and the other end is connected to the monitoring platform.

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