Multi-parameter monitoring system and method for geotechnical material in landslide area

Abstract

The invention discloses a multi-parameter monitoring system and method for a geotechnical material in a landslide area. According to the method, a piezoelectric ceramic sensor array is embedded in an area prone to a landslide, by means of the inverse piezoelectric effect of piezoelectric ceramic sensors, voltage is applied to any piezoelectric ceramic sensor, stress waves are generated and emitted to the periphery, then the stress waves are received by the aid of the direct piezoelectric effect of the piezoelectric ceramic sensors, voltage signals can be output, and the modulus of elasticity of soil media can be calculated through the time difference between voltage signal emitting and voltage signal receiving and the arrangement distance; the change of the water content of the soil and whether crack damage happens can be determined through change of the amplitude values of the voltage signals. The property parameters of the geotechnical material in the landslide area can be known in real time, the method can be used for early warning of the landslide, and landslide accidents and casualties are reduced effectively; compared with other monitoring methods, the method is reliable, stable, low in cost and easy to implement and is applicable to engineering in the landslide area with high capacity and wide range.

Description

technical field [0001] The invention relates to the technical field of rock and soil material parameter monitoring in landslide areas, in particular to a multi-parameter monitoring system and method for rock and soil materials in landslide areas. Background technique [0002] Geological landslides pose a serious threat to people's lives and property safety. The moisture content, elastic modulus of soil and crack damage in the landslide area are the key parameters to characterize the geological stability of the landslide area. [0003] The existing landslide monitoring methods include four aspects: surface deformation monitoring, deep displacement monitoring, groundwater dynamic monitoring and related factors monitoring. The existing monitoring methods cannot simultaneously monitor the cracks, water content, and elastic modulus inside the landslide. Contents of the invention [0004] In order to solve the above technical problems, the present invention proposes a multi-para...

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Problems solved by technology

[0003] The existing landslide monitoring methods include four aspects: surface deformation monitoring, deep displacement monitoring, groundwater dynamic monitoring and related factors monitoring. The existing monitoring methods cannot simultaneously monitor the cracks, water content, and elastic modulus inside the landslide.

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