Precision in Prediction: Landslide Monitoring Equipment in Action

Landslide monitoring equipment, as an important tool for ensuring geological safety, can monitor the characteristics of landslide masses and related environmental factors, providing crucial data for analyzing landslide risks.

Displacement monitoring equipment: The GNSS monitoring system utilizes the Global Navigation Satellite System. By receiving satellite signals, it determines the three - dimensional coordinates of monitoring points, achieving high - precision, all - weather real - time monitoring of the horizontal and vertical displacements of the landslide mass. Moreover, it can transmit data remotely, making it suitable for large - area long - term monitoring. The total station calculates the coordinate changes of monitoring points by measuring distances and angles. It has relatively high accuracy, but requires line - of - sight and has a limited monitoring range. The laser displacement monitor, based on the principle of laser ranging, monitors displacement by measuring distance changes. It features high precision, non - contact operation, and fast response, making it suitable for close - range precise monitoring.

Deformation monitoring equipment: The inclination sensor is used to measure the change in the inclination angle of the landslide mass to judge the development trend of the landslide. The strain gauge is installed at specific positions on the landslide mass. As the rock and soil mass deforms, it generates strain. By measuring the change in its physical quantity, the strain value is calculated, thereby understanding the deformation of the landslide mass.

Hydrological monitoring equipment: The rain gauge measures rainfall amount and intensity by sensing raindrops, providing data for analyzing the relationship between rainfall and landslides. The water - level sensor monitors the changes in the groundwater level or surface water level around the landslide mass. Since water - level fluctuations can affect the stability of the landslide, for example, a rising water level may reduce the anti - sliding force and increase the landslide risk.

Other monitoring equipment: The crackmeter is installed on both sides of the cracks in the landslide mass to monitor the changes in crack width, length, and depth, providing a basis for judging the danger level of the landslide. The geophone uses sensors to receive the sound signals generated by the rupture and sliding of the rock and soil mass inside the landslide mass. By analyzing the signal characteristics and intensity, the internal activities can be judged. An abnormally enhanced signal may indicate an impending landslide.