Pile foundation structure and falling rock protection network null of standards for falling rock protection network

摘要

PURPOSE: To heighten support supporting performance and reliability as well as the constructing performance of pile foundation and improve support erection performance, falling stone protecting performance and durability. ;CONSTITUTION: The pile foundation structure for falling stone protective net supports is provided with a pipe anchor 1 driven into a slope (a) by the driving force of a driver 11, a resistance plate 2 provided along the upper part of the pipe anchor l so as to protrude on both sides, a base plate 3 fixed to the upper end part of the pipe anchor 1 and the upper edge part of the resistance plate 2, and a support bearer 4 fixed onto the base plate 3 and provided with a support fitting bolt 4a. Pile foundations 10 are driven with horizontal spaces into the slope (a). The support 5 is hinge-connected (4a) onto each pile foundation, and the upper part of each support 5 is supported by a hanging rope 6 or the like for erection. The upper part of a wire gauze 8 reinforced by longitudinal and lateral ropes 7a, 7b is connected to each support 5, and the lower part of the wire gauze 8 is anchored to the slope (a) to stretch the wire gauze 8.;COPYRIGHT: (C)1995,JPO