Abstract: The present disclosure relates to a three-dimensional drainage device suitable for a loose filling slope and methods for constructing the three-dimensional drainage device. The slope includes a stable stratum and a filling soil stratum above the stable stratum. The three-dimensional drainage device includes a surface drainage mechanism, a shallow drainage mechanism and a deep drainage mechanism. The surface drainage mechanism includes one or more catchment canals arranged on an upper surface of the filling soil stratum and a pool arranged on an edge of the filling soil stratum. The shallow drainage mechanism includes one or more first collecting pipes. The deep drainage mechanism includes one or more drainage gabions and one or more second collecting pipes.

Abstract: The present disclosure relates to a three-dimensional drainage device suitable for a loose filling slope and methods for constructing the three-dimensional drainage device. The slope includes a stable stratum and a filling soil stratum above the stable stratum. The three-dimensional drainage device includes a surface drainage mechanism, a shallow drainage mechanism and a deep drainage mechanism. The surface drainage mechanism includes one or more catchment canals arranged on an upper surface of the filling soil stratum and a pool arranged on an edge of the filling soil stratum. The shallow drainage mechanism includes one or more first collecting pipes. The deep drainage mechanism includes one or more drainage gabions and one or more second collecting pipes.

Abstract: The present disclosure relates to a device for laying out a prefabricated magnetic field and a method for responding state of a slip mass in the prefabricated magnetic field. The device may include a traction mechanism, a control mechanism and a layout probe. The layout probe may include a shell, a circuit board and at least one set of layout mechanism equipped in the shell. The layout mechanism may include a cartridge, a screw pole, an electromagnet, a driving mechanism and a pressing mechanism. The traction mechanism may lay down the layout probe to a default location of a drill hole. The control mechanism may control the driving mechanism to transmit an uppermost permanent-magnet in the layout probe to the cartridge nozzle and be attracted by the electromagnet. The pressing mechanism may move the electromagnet which presses the permanent-magnet in the inner wall of the drill hole.