| 摘要 |
Provided are a land settlement measuring apparatus and a land settlement measuring system. The land settlement measuring apparatus includes a magnetic field detection unit, a microprocessor, and a containing unit. The magnetic field detection unit includes a plurality of magnetic field detection sensors that are separated from each other in a predetermined interval. The microprocessor calculates a differential settlement amount based on a magnetic field detection signal transmitted from the magnetic field detection unit, in the case where a change in the magnetic field is detected by the sensor. The containing unit contains the magnetic field detection unit and the microprocessor. The land settlement measuring system includes a magnetic field generation unit, a land settlement measuring apparatus, and a data logger. The magnetic field generation unit is disposed at a predetermined position of a ground to be adjacent to a hole which is perforated down to an unmovable layer. The land settlement measuring apparatus passes through the hole so that the one end thereof is fixed to the unmovable layer, the land settlement measuring apparatus measuring a differential settlement amount according to a change in the position of the magnetic field generation unit. The data logger stores a result of the measurement transmitted from the land settlement measuring apparatus. According to the configuration, it is possible to collectively measure a differential settlement amount of a surface of a settling layer and a differential settlement amount of the settling layer in one system and to obtain a more accurate value of the measurement. |
