CN210426418U

CN210426418U - Slope deformation monitoring and early warning device

Info

Publication number: CN210426418U
Application number: CN201821710797.4U
Authority: CN
Inventors: 何忠明; 彭生辉; 陈勇超
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2020-04-28
Anticipated expiration: 2028-10-22

Abstract

The utility model discloses a side slope deformation monitoring and early warning device mainly includes: the combined type hollow anchor rod, the capacitance type liquid level meter, the wireless signal acquisition transmitter, the computer processing system, the early warning assembly and the like. The capacitance type liquid level meter adopted by the utility model can measure the liquid level change according to the change of the capacitance, thereby reflecting the deformation development condition inside the side slope; when the interior of a side slope deforms, the liquid level of the capacitive liquid level meter changes to generate an electric energy signal, the signal is recorded and transmitted by the wireless signal acquisition transmitter, then the signal is received by the computer system and checked with a set early warning threshold value, and finally a corresponding warning signal is sent out according to a checking result; meanwhile, the adopted combined anchor rod can play a good role in reinforcing the side slope; the utility model discloses can consolidate the side slope, can be to the side slope deformation monitoring early warning again, can all-weather automatic monitoring, measuring range is big, application scope is wide, can be used to various side slope engineering.

Description

Slope deformation monitoring and early warning device

Technical Field

The utility model relates to a road engineering field among the civil engineering specifically is about a slope deformation monitoring and early warning device.

Background

China has complex and various landforms, and along with the construction of a large amount of infrastructure, numerous complex rock-soil slope stability problems are continuously emerged in the slope engineering construction. The slope is a very complicated system project, the stability of the slope is related to the safety of the whole project, once the slope is deformed and unstable, the slope seriously threatens the construction and safe operation of nearby projects, causes casualties and property loss, and even brings about a devastating disaster. Therefore, the slope is reinforced, so that the stability of the slope is enhanced, and the service performance of the slope is improved.

In recent years, the number of side slope disasters is continuously increased, higher requirements and greater requirements are put forward on the side slope safety, and more attention is paid to how to monitor and pre-warn the side slope safety problem. The side slope disasters are caused in various aspects, such as side slope instability caused by weathering of rock mass, rainfall, terrain where the side slope is located, external applied load and the like, and all the factors threaten the stability of the side slope to a certain extent. The slope early warning is to inform the state of the slope in real time in the dynamic evolution process of the slope and send out warning to the possible dangerous case so as to quickly take effective prevention and control measures; therefore, how to set a reasonable early warning device to efficiently monitor the slope deformation is necessary, and the method has important significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a device which can monitor the deformation of the side slope and automatically generate early warning; the device still has the function of monitoring the development state of side slope stability ability during its in service while improving side slope stability.

In order to solve the technical problem, the utility model provides a side slope deformation monitoring and early warning device, collect transmitter, computer processing system, early warning subassembly etc. including capacitanc level gauge, inductive transducer, the combination formula cavity stock body of rod, screw anchor head, radio signal.

The combined hollow anchor rod body has the advantages that the front end of the rod body is provided with the threaded anchor head, the bottom of the rod body adopts the exhaust hole, the hollow rod body can be used as a high-pressure air channel and a grouting channel, and the hollow rod body can be designed to obtain better rigidity and shear strength; the anchor rod body outer surface full length standard coarse pitch helicitic texture, the cutting and the extension of stock of being convenient for of helicitic texture have increased thereby the bonding area of anchor rod body and slip casting material simultaneously and have improved anchor power. The hollow anchor rod bodies are connected through the combined connecting sleeves, and the length can be adjusted independently to select the rod bodies to be connected in a combined mode.

After the cavity stock carry out the slip casting, the mortar wraps up stock and capacitanc level gauge into a whole, closely packs simultaneously inside soil property side slope, if the side slope takes place to warp the displacement, will lead to the whole certain removal and the angle change that produces of stock, this change can arouse the capacitance variation of level gauge, can be fine be the signal of telecommunication by the transmission of level gauge, carry out signal collection and launch by wireless signal acquisition transmitter again.

The anchor head of the anchor rod is made of plastic made of PC polycarbonate materials, the surface of the anchor rod is formed into a stripe shape which is uniformly distributed through a process, and the anchor head is connected with the hollow rod body through thread anchoring.

The bottom of the combined hollow anchor rod is provided with an exhaust hole, and the anchor rod with a threaded structure is fixed through a tray and a hexagon nut.

The capacitance type liquid level meter is connected with the resistance wire and fixed on the upper part of the ceramic tube, quantitative electrolyte solution is filled at the bottom of the ceramic tube, the inductance sensor is arranged at the lowest part, and the capacitance type liquid level meter, the resistance wire, the inductance sensor and the ceramic tube form a closed loop; the head of the ceramic tube is led out of wires at two ends of the circuit, the ceramic tube is sheathed with a layer of PVC tube for protection, and the wires at two ends extend outwards along the PVC tube to be connected with the wireless signal collecting transmitter.

The capacitance type liquid level meter is a metal cylinder, and the size of the capacitance type liquid level meter is 90mm in length and 26mm in diameter.

The wireless signal acquisition transmitter set up on the screw block, the screw block is in combination formula stock head position, in order to guarantee the safety and stability of wireless signal acquisition transmitter, has set up the one deck safety cover in screw block department with adding.

The wireless signal acquisition transmitter and the wireless signal receiver are in data transmission in a wireless communication mode, and the relative movement distance and the relative rotation angle obtained through calculation are intelligently judged by a computer processing system and are compared with a preset threshold value.

The early warning component is connected with the computer processing system and can make corresponding early warning signal feedback aiming at the calculation result of the computer processing system.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a slope reinforcement and deformation monitoring and early warning device of the present invention;

fig. 2 is the schematic diagram of the internal structure of the capacitive liquid level meter.

Detailed Description

The structure combination and implementation steps of the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a slope reinforcement and deformation monitoring early warning device embodiment schematic structure includes: the device comprises a capacitance type liquid level meter (1), an inductance sensor (2), a resistance wire (3), a combined hollow anchor rod body (4), a combined connecting sleeve (5), an anchor head (6), an exhaust hole (7), a ceramic pipe (8), a PVC pipe (9), a tray (10), a hexagon nut (11), a screw cap (12), a wireless signal acquisition transmitter (13), a protective cover (14), a wireless signal receiver (15), a computer processing system (16) and an early warning component (17).

1. And determining the position of an anchor rod hole, drilling by using a drilling machine, flushing and cleaning the anchor rod hole by using high-pressure air after the drill hole is formed, wherein the depth of the drill hole is determined according to the property of the slope.

2. And connecting the threaded anchor head with the hollow anchor rod body through thread anchoring.

3. The inductive sensor, the capacitance level meter and the resistance wire are assembled in a circuit and are arranged in a ceramic tube filled with certain electrolyte.

4. And connecting the ceramic tube with the assembled circuit with a wireless signal acquisition emitter to form a complete loop, sleeving a layer of PVC tube for protection, and fixing the PVC tube in the hollow anchor rod body.

5. Directly inserting the rod body provided with the anchor head into the bottom of the formed hole, and pre-tightening the rod body by force to ensure that the distance between the anchor head at the front end and the bottom of the hole is 100 mm; in order to enhance the overall effect of the anchor rod and improve the friction force between the combined connecting sleeve and the hole wall, the outer circumferential surface of the preferred combined connecting sleeve is in a thread shape.

6. The buffer plug, the tray and the hexagon nut are sequentially installed, and the nut is screwed by a spanner, so that the tray is tightly attached to form axial force.

7. The combined hollow anchor rod is grouted, mortar enters an anchor hole from a mortar outlet on the connecting sleeve through a hollow inner hole of a hollow anchor rod body, the mortar in the anchor hole is full from outside to inside, air in the anchor hole is discharged from the exhaust pipe, after grouting is completed, a screw cap with a wireless signal acquisition transmitter is immediately installed for blocking the mortar, and a protective cover is additionally arranged at the screw cap.

Claims

1. A slope deformation monitoring and early warning device comprises a capacitance type liquid level meter (1), an inductance sensor (2), a resistance wire (3), a combined hollow anchor rod body (4), a combined connecting sleeve (5), a threaded anchor head (6), an exhaust hole (7), a ceramic pipe (8), a PVC pipe (9), a tray (10), a hexagon nut (11), a screw cap (12), a wireless signal acquisition transmitter (13), a protective cover (14), a wireless signal receiver (15), a computer processing system (16) and an early warning component (17); the device is characterized in that a closed loop is formed by the capacitance type liquid level meter (1), the resistance wire (3), the inductance sensor (2) and the ceramic tube (8); the ceramic pipe (8) is additionally provided with a layer of PVC pipe (9) for protecting the ceramic pipe and is fixed inside the combined hollow anchor rod body (4).

2. The slope deformation monitoring and early warning device as claimed in claim 1, wherein the ceramic tube (8) is filled with a fixed amount of electrolyte solution, the bottom of the ceramic tube is provided with the inductive sensor (2), and the whole ceramic tube is in a sealed state.

3. The slope deformation monitoring and early warning device as claimed in claim 1, wherein the combined hollow anchor rod body (4) is in threaded connection through a combined connecting sleeve (5), and the front end of the combined rod body is provided with a threaded anchor head (6); wherein the bottom of the combined hollow anchor rod body (4) is provided with an exhaust hole (7).

4. The slope deformation monitoring and early warning device as claimed in claim 1, wherein the wireless signal acquisition emitter (13) is connected with the capacitive liquid level meter (1) through a resistance wire (3); adopt wireless connection between wireless signal acquisition transmitter (13) and wireless signal receiver (15), computer processing system (16) are connected with early warning subassembly (17), can in time transmit early warning signal.

5. The slope deformation monitoring and early warning device as claimed in claim 1, wherein a protective cover (14) is mounted above the wireless signal acquisition transmitter, and the protective cover (14) is made of aluminum alloy material.