CN212903151U

CN212903151U - Automatic monitoring devices of mountain landslide

Info

Publication number: CN212903151U
Application number: CN202022065644.2U
Authority: CN
Inventors: 谢远彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-06
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses an automatic monitoring device for landslide, which comprises a connecting rod, wherein the connecting rod passes through a drill hole and is fixedly connected with a sliding bed; the drill hole penetrates through the sliding mass to be communicated with the sliding bed, and a solidifiable object is arranged in the drill hole; the stress sensor is arranged on the connecting rod and close to the position of the sliding bed; the first end of the fixed rod is embedded into the landslide body; and the first end of the displacement sensor is connected with the second end of the fixed rod, and the second end of the displacement sensor is connected with the connecting rod. The utility model discloses with the stress change through the stress sensor real-time supervision landslide body, through the displacement change of displacement sensor real-time supervision landslide body to improve reliability and the promptness to the landslide monitoring. The utility model discloses but wide application in automation technology field.

Description

Automatic monitoring devices of mountain landslide

Technical Field

The utility model belongs to the technical field of the automatic technique and specifically relates to an automatic monitoring devices of massif landslide.

Background

The landslide is a natural phenomenon that soil or rock mass on a slope slides downwards along the slope integrally or dispersedly under the action of gravity along a certain weak surface or a weak zone under the influence of factors such as river scouring, underground water activity, rainwater immersion, earthquake, artificial slope cutting and the like. Landslide often causes great loss, some even devastating disasters to industrial and agricultural production and people's life and property. Before the slip mass slips, the soil stress near the toe changes due to the squeezing effect, and the stability of the slip mass is judged by monitoring the soil stress between the slip mass and the relatively static toe. If changes in the stress of the toe soil can be detected, it would be a great help to predict the occurrence of landslide. The prior art is through installing the soil pressure gauge, but, the method of installing the soil pressure gauge to the landslide mass that does not set up retaining wall, the installation soil pressure gauge effect is not good, and the exact position of installing the soil pressure gauge is difficult to confirm, and often can appear having taken place the landslide, but the condition that the soil pressure value has not changed yet, and the reliability of the monitoring of installation soil pressure gauge is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a: provided is an automatic monitoring device for landslide, which can improve monitoring reliability.

The utility model adopts the technical proposal that:

an automated landslide monitoring device, comprising:

the connecting rod penetrates through the drill hole and is fixedly connected with the sliding bed; the drill hole penetrates through the sliding mass to be communicated with the sliding bed, and a solidifiable object is arranged in the drill hole;

the stress sensor is arranged on the connecting rod and close to the position of the sliding bed and is used for monitoring the stress change of the sliding mass;

the first end of the fixed rod is embedded into the landslide body;

and the first end of the displacement sensor is connected with the second end of the fixed rod, the second end of the displacement sensor is connected with the connecting rod, and the displacement sensor is used for monitoring the displacement change of the landslide body.

Further, the monitoring device further comprises a lead wire, a first end of the lead wire is connected with the stress sensor, and a second end of the lead wire passes through the solidifiable object and is connected to the orifice of the drill hole.

Furthermore, the monitoring device also comprises buffer rubber, and the buffer rubber is sleeved outside the stress sensor.

Further, the connecting rod is deformed steel bar or a galvanized iron pipe.

Further, the diameter of the drill hole is between 50mm and 90 mm.

Further, the settable object is cement paste.

Further, the monitoring device further comprises a communication module, and the communication module is used for transmitting the stress change monitored by the stress sensor and the displacement change monitored by the displacement sensor to external equipment.

The utility model has the advantages that: the utility model discloses a drilling that the connecting rod that will be equipped with stress sensor passed the landslide body is connected with the sliding bed to set up displacement sensor on the connecting rod in drilling exit, be connected displacement sensor's the other end and dead lever, with the stress variation through the stress sensor real-time supervision landslide body, through the displacement variation of displacement sensor real-time supervision landslide body, thereby improve reliability and the promptness to the landslide monitoring.

Drawings

Fig. 1 is a schematic view of an application of an automatic monitoring device for landslide according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a point a position in fig. 1 according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of a position of a point B in fig. 1 according to an embodiment of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments.

Referring to fig. 1, the embodiment of the present invention provides an installation schematic diagram of an automatic monitoring device for landslide in an actual application process, wherein the installation schematic diagram includes a connecting rod 120, a stress sensor 130, a fixing rod 140 and a displacement sensor 150, specifically, in an application process, after determining a position of a toe 115 of a geological disaster landslide, according to a related disaster investigation report, selecting a proper position, then, drilling a borehole 116 with a diameter of 50mm to 90mm along a slope 114 and penetrating through a landslide body 112 to communicate with a slide bed 111, wherein the slide bed 111 has a certain stability, and a bottom of the borehole 116 should reach a slide bed surface 113 with sufficient bearing capacity. The enlarged view at position a of fig. 1 is shown in fig. 2, and the connecting rod 120 passes through the bore hole 116 and is fixedly connected with the slider bed 111; the stress sensor 130 is disposed on the connecting rod 120 and near the sliding bed surface 113, and is used for monitoring the stress variation of the sliding mass 112; in some embodiments, to improve the monitoring capability of the stress sensor, the monitoring device further comprises a lead 160 and a cushion gum 170, a first end of the lead 160 is connected with the stress sensor 130, and a second end of the lead 160 passes through the borehole 116 and is connected to the orifice of the borehole 116; the cushion rubber 170 is sleeved outside the stress sensor 130. After the above setting is completed, the settable object 180 is injected into the borehole 116, and the settable object 180 may be cement slurry, so that when a landslide phenomenon is about to occur around the borehole, the stress sensor in the borehole can quickly and effectively detect the change of soil stress around the borehole. In this embodiment, the parameter selection of the stress sensor can be determined according to the diameter and depth of the borehole and the friction coefficient of the soil, so that the selected stress sensor can be more suitable for the landslide monitoring scene in the current state.

Next, as shown in fig. 3, an enlarged schematic view at position B of fig. 1, where a first end of the fixing rod 140 is embedded into the landslide body 112 at a proper position on the surface of the landslide body 112 to form a whole with the soil body, the fixing rod 140 may be made of stainless steel; the first end of the displacement sensor 150 is connected to the second end of the fixing rod 140, the second end of the displacement sensor 150 is connected to the end of the connecting rod 120 exposed outside the bore 116, and the displacement sensor 150 is used for monitoring the displacement change of the sliding mass. In this embodiment, through being fixed in the landslide body with the dead lever to set up displacement sensor in the other end of dead lever, when making the landslide body take place to slide, displacement sensor can in time effectual monitoring landslide body's displacement change condition.

The working principle of the above embodiment is as follows: before the landslide body slides, the soil stress near the drill hole can be increased due to the extrusion effect in the landslide body, and at the moment, the stress sensor arranged on the connecting rod can effectively monitor the changed soil stress; when the landslide body is displaced, the axial force of the landslide body can reach an extreme value, so that the position between the fixed rod and the connecting rod is changed, the displacement sensor can timely monitor the displacement value of the change, at the moment, the monitored stress change and displacement change can be timely transmitted to the external equipment through the communication module on the monitoring device, the external equipment can analyze whether the landslide phenomenon occurs according to the received stress change and displacement change, and before the landslide phenomenon occurs, alarm information is generated to prompt people nearby to evacuate timely, and the safety is improved.

In the above embodiments, the communication module may be a wireless communication module, such as a WiFi module; or a communication module to improve the stability of transmission. The external equipment can be terminal equipment such as a computer and a mobile phone of monitoring personnel, and can also be a data processing platform.

In some embodiments, the connecting rod may be a threaded steel or galvanized iron pipe to extend the service life of the monitoring device.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a mountain landslide automatic monitoring device which characterized in that includes:

the first end of the fixed rod is embedded into the landslide body;

2. The automated landslide monitoring device of claim 1 further comprising a lead wire having a first end connected to the stress sensor and a second end connected to the bore hole through the settable object.

3. The automatic monitoring device for landslide according to claim 1, further comprising a buffer rubber sleeved outside the stress sensor.

4. The automatic landslide monitoring device of claim 1 wherein the connecting rod is a threaded steel or galvanized iron pipe.

5. The automated landslide monitoring device of claim 1 wherein said bore hole is between 50mm and 90mm in diameter.

6. The automated landslide monitoring device of claim 1 wherein said settable object is a grout.

7. The automated landslide monitoring device of any one of claims 1-6, further comprising a communication module for transmitting changes in stress monitored by said stress sensor and changes in displacement monitored by said displacement sensor to an external device.