Soil landslide infrasonic signal recognizing and field monitoring device and method

Abstract

The invention discloses a soil landslide infrasonic signal recognizing and field monitoring device. The device comprises a plurality of ground infrasonic monitoring stations and an underground infrasonic monitoring station which are arranged in an array; the ground monitoring stations and the underground monitoring station are separately connected with a data acquiring center; each ground infrasonic monitoring station comprises a monitoring pile (1), a stylobate (3), a first infrasonic sensor (4) and a waterproof box (5), each monitoring pile (1) is mounted and fixed on the corresponding stylobate (3) of the ground, and each first infrasonic sensor (4) is mounted in the corresponding waterproof box (5) of the corresponding monitoring pile (1). On the basis of the device, the invention further provides a soil landslide infrasonic signal recognizing and field monitoring method, and landslide can be monitored. A ground and underground combined monitoring method is adopted, interference ofan infrasonic source in the environment is eliminated, and the landslide infrasonic signal detecting ability is improved.

Description

technical field [0001] The invention relates to the technical field of soil landslide monitoring and measurement, in particular to a device and method for soil landslide infrasound signal identification and field monitoring. Background technique [0002] Landslides are the most widely distributed and most frequent geological disasters in China. It is characterized by suddenness and high destructiveness, which seriously threatens the safety of people's lives and property. From the mechanical point of view of slope instability, the essence of landslide is that the sliding force is greater than the anti-sliding force. The change of hydrological parameters is the cause of the change of the mechanical state on the sliding surface, and the displacement change is the external macroscopic manifestation of the strain caused by the change of the mechanical state on the sliding surface. Therefore, whether it is monitoring hydrological parameters or displacement changes, it is not bas...

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Problems solved by technology

However, the current infrasound monitoring method has the problem of monitoring landslides: due to the existence of many infrasound interference sources in the atmosphere, the infrasound method for monitoring soil landslides is easily disturbed by environmental noise, resulting in false alarms.

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