Device and method for monitoring displacement deformation of sliding surface of landslip

Abstract

The invention discloses a device and a method for monitoring displacement deformation of a sliding surface of a landslip. The device comprises a slope measuring pipe positioned under the ground and more than one obliquity angle sensor positioned inside the slope measuring pipe; and the device also comprises a large-deformation measurement system which corresponds to each obliquity angle sensor one by one; the large-deformation measurement system comprises a steel wire rope, a pulley, a coding sensor and a counter weight, wherein one end of the steel wire rope and the corresponding obliquity angle sensor are positioned at the same depth measuring position; the steel wire rope is wound around the pulley on a bracket; the other end of the steel wire rope is connected with the counter weight; and the coding sensor is fixed at the center of the pulley. Aiming at the defects of the conventional landslip drilling for measuring the slope displacement, the invention provides automatic monitoring equipment which is relatively low in construction cost and can monitor and describe the whole process of the sliding surface of the landslip from deformation to destabilization, and the measurement requirement can be met due to the measurement accuracy.

Description

technical field [0001] The invention relates to the fields of geological disaster monitoring and early disaster forecasting, in particular to a device and method for monitoring displacement and deformation of landslide sliding surfaces. Background technique [0002] The existing landslide inclinometers have high measurement accuracy and can also realize automatic monitoring. However, due to the limitation of the measurement principle, the measurement range of the inclinometer is very limited. In the case of large displacement changes on the sliding surface of the landslide, it cannot To continue the measurement, the sensor of the inclinometer is arranged in the measured borehole, and the sensor device is connected to the data acquisition device through a data line. When the sliding surface breaks the inclinometer tube, the measurement cannot be continued. The long-term and large-range monitoring has irreparable shortcomings. [0003] Therefore, an automatic monitoring equip...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a device and method for monitoring the displacement and deformation of the sliding surface of the landslide, which solves the problem that the existing technology cannot detect the large displacement change of the sliding surface of the landslide and cannot detect the inclinometer pipe when the sliding surface is frustrated. Continuing to measure the problem

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