| 摘要 |
An apparatus and a system for measuring ground subsidence are disclosed. The apparatus for measuring ground subsidence according to the present invention includes a magnetic field detection unit, a micro-computer, and a load unit. The magnetic field detection unit includes a plurality of magnetic field detection sensors spaced apart from each other by a predetermined gap, the micro-computer calculates the volume of ground subsidence in accordance with the magnetic field detection signal transmitted from the magnetic field detection unit in cases where a sensor for sensing the magnetic field from among a plurality of sensors is changed, and the load unit is loaded with the magnetic field detection unit and the micro-computer. Further, the system for measuring ground subsidence according to the present invention includes a magnetic field generating apparatus, a ground subsidence measuring apparatus, and a data logger. The magnetic field generating apparatus is installed at a predetermined position on the ground such that the magnetic field generating apparatus is adjacent to the work hole drilled in a non-moving layer, and generates a magnetic field. Further, the ground subsidence measuring apparatus has one end fixed at the non-moving layer through the work hole, and measures the volume of ground subsidence in accordance with the variation of the position of the magnetic field generating apparatus. The data logger receives the measurement result from the ground subsidence measuring apparatus, and stores the received result. The above-described configuration of the present invention enables the measurement of the subsidence volume of a ground surface and the subsidence volume for each ground layer to be integrally performed with a single system, and improves the accuracy of the measured value. |
