CN103033304B - Steel spring and tension sensor based dangerous rock collapse detection device and steel spring and tension sensor based dangerous rock collapse detection method - Google Patents

Abstract

The invention discloses a steel spring and tension sensor based dangerous rock collapse detection device and a steel spring and tension sensor based dangerous rock collapse detection method. The steel spring and tension sensor based dangerous rock collapse detection device comprises a plurality of tension sensors, the two ends of each tension sensor are both fixedly installed with one end of each steel spring, the other end of each steel spring is fixedly connected with a foundation seat which is fixed in an underholing formed in one side of a crack of a dangerous rock, a wireless module is arranged on each tension sensor, the wireless modules are connected with a receiving main engine through wireless signals, and the receiving main engine is connected with a receiving terminal. The invention simultaneously and further discloses the detection method of the steel spring and tension sensor based dangerous rock collapse detection device. According to the steel spring and tension sensor based dangerous rock collapse detection device and the steel spring and tension sensor based dangerous rock collapse detection method, mechanical parameter variation of the dangerous rock is used for collapse trend monitoring, and a data wireless sensor network is achieved and established. The steel spring and tension sensor based dangerous rock collapse detection device and the steel spring and tension sensor based dangerous rock collapse detection method has the advantages of being high in precision, breakage-proof, strong in antijamming capacity, convenient in measuring and the like.

Description

Device and method for detecting dangerous rock mass collapse based on steel spring and tension sensor

technical field

The invention relates to a detection device and method, in particular to a device and method for detecting dangerous rock mass collapse based on a steel spring and a tension sensor.

Background technique

The safety monitoring research of dangerous rock mass has a long history, and there are many monitoring methods. The traditional method adopts the intuitive micrometer observation method, which is to directly measure the crack width change of dangerous rock mass with a micrometer. The measurement method is intuitive and simple. However, there are problems such as poor precision and inability to record.

With the further development of science and technology, GPS and INSAR three-dimensional laser scanners have also been introduced into the safety detection of dangerous rock masses. Although the data collection is convenient, the accuracy still cannot meet the monitoring requirements, and the cost is expensive. In engineering applications, it is still not effective in monitoring and predicting the collapse of dangerous rock mass.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art above, to provide a device and method for detecting the collapse of dangerous rock mass based on steel springs and tension sensors, which utilizes the change of mechanical parameters of dangerous rock mass to monitor its collapse tendency, realizes and establishes The wireless sensor network that collects data has many advantages such as high precision, anti-destruction, strong anti-interference ability, and convenient measurement.

To achieve the above object, the present invention adopts the following technical solutions:

A device for detecting dangerous rock mass collapse based on steel springs and tension sensors, including several tension sensors, the two ends of each tension sensor are fixedly installed with one end of two steel springs, and the other end of each steel spring is connected with a The base is fixedly connected, and the base is fixed in the cutout on one side of the crack in the dangerous rock mass; each tension sensor is provided with a wireless module, and the wireless module is connected to the receiving host through wireless signals, and the receiving host is connected to the receiving terminal.

The base is T-shaped.

The cutout is T-shaped matched with the base.

The receiving host is connected to the receiving terminal in a wired or wireless manner.

A detection method based on a steel spring and a tension sensor to detect the collapse of a dangerous rock mass, the steps are as follows:

1) On the cracks of the dangerous rock mass, select several points to be measured, and fix the base on both sides of the cracks of the dangerous rock mass, and connect the high-precision tension sensor with a wireless module outside through the steel spring, so that when the dangerous rock mass Before the collapse occurs, the cracks continue to develop and cause the tension between the cracks to increase, and the tension sensor will transmit this change through wireless communication;

2) The data collected by the tension sensors at each monitoring point are sent to the receiving host through wireless signals and processed to realize real-time monitoring of the monitoring points, thereby forming a wireless monitoring network;

3) The receiving host transmits the received change data of each monitoring point to the receiving terminal through wireless or wired communication, further processing and analysis, realizing the graphic of the data, and giving the tension change curve between cracks, so as to realize the analysis of dangerous rocks. The monitoring of body collapse provides accurate basis for judging mechanical property parameters.

The two ends of the high-precision tension sensor of the present invention are respectively fixed with a steel spring, and the other end of the steel spring is fixed on one side of the crack in the dangerous rock mass. When the crack continues to develop, the tension between the cracks will increase, and the data collected by the tension sensor will be Through the wireless module of the peripheral, send data to the receiving host through wireless communication; the receiving host accepts and completes the digital conversion of the analog signal, and further sends it wirelessly to the receiving terminal, and then uses specific software to give the tension between the cracks The size change curve of the scale; pass the relevant judgment criteria, so as to predict the trend of the collapse of dangerous rock mass, and realize the purpose of efficient monitoring of the collapse of dangerous rock mass.

The base is nested and fixed on both sides of the cracks in the dangerous rock mass by means of cutting. The length and specific mechanical parameters of the steel spring can be customized and adjusted according to the actual geological conditions of the monitored cracks (and this customized adjustment is a well-known technology mastered by those skilled in the art). The range and precision of the tension sensor are determined by the specific geological conditions of the dangerous rock mass (the range and precision of the tension sensor are technologies well known to those skilled in the art). The workmanship of the steel spring and the tension sensor is strong and durable, meeting the requirements of the field environment such as anti-vandalism and waterproof, and can work continuously for two weeks or even longer. The receiving host is fixed at a safer fixed location, and can work continuously for two weeks or even longer in the harsh environment in the wild. The data of the whole system can completely realize the wireless transmission of data. In order to ensure the stability of data and meet the requirements of transmission distance, wired communication can be used between the receiving host and the receiving terminal.

The present invention uses the change of mechanical parameters between the cracks of the dangerous rock mass to accurately reflect the characteristic of the collapse of the dangerous rock mass, adopts a high-precision tension sensor and a steel spring combination method, and establishes a wireless sensor network to successfully and efficiently realize the detection of the collapse of the dangerous rock mass It has many advantages such as high precision, anti-sabotage, strong anti-interference ability, and convenient measurement.

Description of drawings

Fig. 1 is the installation schematic diagram of steel spring of the present invention and tension sensor;

Fig. 2 schematic diagram of wireless sensor network of the present invention;

Among them, 1 is a tension sensor; 2 is a steel spring; 3 is a base; 4 is a groove, 5. Cracks in dangerous rock mass, 6. Dangerous rock mass

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 and 2, the device for detecting dangerous rock mass collapse based on steel springs and tension sensors includes several tension sensors 1, and the two ends of each tension sensor 1 are fixedly installed with two steel springs 2 respectively. The other ends of each steel spring 2 are all fixedly connected with a T-shaped base 3, and the base 3 is fixed in the T-shaped cutout 4 matched with the base 3 on one side of the dangerous rock mass crack; each tension sensor 1 is equipped with a wireless module, the wireless module is connected to the receiving host through wireless signals, and the receiving host is connected to the receiving terminal through wired or wireless means.

The detection method of the device for detecting the collapse of dangerous rock masses based on steel springs and tension sensors, the steps are as follows:

1) On the crack 5 of the dangerous rock mass, select a number of points to be measured, on the dangerous rock mass 6 on both sides of the crack of the dangerous rock mass, fix the base 3, and connect the high-precision sensor with a wireless module through the steel spring 2. tension sensor 1, so that before the collapse of the dangerous rock mass 6, the cracks continue to develop and cause the tension between the cracks to increase, and the tension sensor 1 will transmit this change through wireless communication;

2) The data collected by the tension sensor 1 of each monitoring point is sent to the receiving host through wireless signals and processed to realize real-time monitoring of the monitoring points, thus forming a wireless monitoring network;

3) The receiving host transmits the received change data of each monitoring point to the receiving terminal through wireless or wired communication, further processing and analysis, realizing the graphic of the data, and giving the tension change curve between cracks, so as to realize the analysis of dangerous rocks. The monitoring of body collapse provides accurate basis for judging mechanical property parameters.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (3)

1. a device that detects Dangerous Rock Body avalanche based on steel spring and pulling force sensor, it is characterized in that, comprise several pulling force sensors, the two ends of each pulling force sensor fixedly mount with one end of two steel springs respectively, the other end of each steel spring is all fixedly connected with a T-shaped pedestal, and pedestal is fixed in the slotting of Dangerous Rock Body crack one side; Described slotting is T-shaped for what match with pedestal; On described each pulling force sensor, be equipped with wireless module, wireless module is connected with Receiving Host by wireless signal, and Receiving Host is connected with receiving terminal.

2. device as claimed in claim 1, is characterized in that, described Receiving Host is connected by wired or wireless mode with receiving terminal.

3. utilize a detection method of installing described in any one in claim 1-2, step is as follows:

1) on Dangerous Rock Body crack, choose some tested points, in both sides, Dangerous Rock Body crack, fixedly install pedestal, by steel spring, connect the high-precision pulling force sensor that peripheral hardware has wireless module, thereby before Dangerous Rock Body avalanche occurs, crack is continued growth and is caused pulling force between crack to increase, and pulling force sensor can the mode by wireless telecommunications spread out of this variation;

2) data that the pulling force sensor of each monitoring point gathers, are sent to Receiving Host and are processed by wireless signal, realize the Real-Time Monitoring to monitoring point, thereby form wireless monitor network;

3) Receiving Host is each monitoring point delta data receiving, mode by wireless or wire communication transfers to receiving terminal, further Treatment Analysis, realization is graphical to data, provide tension variations curve between crack, thereby realize the monitoring to Dangerous Rock Body avalanche, mechanical property parameter basis for estimation is accurately provided.