System and method for measuring dynamic relative slip time history and path of soil and underground structure

The invention provides a system and method for a measuring dynamic relative slip time history and path of soil and an underground structure. The system comprises a connecting plate (1), a sliding block (2), a capacitive screen (3), a capacitive pen (4), and a protective cover (5). A first end surface of the sliding block (2) is in contact with a soil body; and a second end surface of the sliding block (2) is connected with the capacitive pen (4) firmly. A pointed end of the bottom of the capacitive pen (4) is in electric contact with the capacitive screen (3) and the capacitive screen (3) is tightly connected to the connecting plate (1). The protective cover (5) is disposed between the connecting plate (1) and the sliding block (2) and is used for forming space for accommodating the capacitive screen and the capacitive pen. When the relative slip occurs between the soil and the underground structure, the relative sliding occurs between the pointed end of the bottom of the capacitive pen and the capacitive scr