TEST APPARATUS FOR EARLY LANDSLIDE DETECTION FULLY-CONNECTED WITH PORE WATER PRESSURE, SURFACE DISPLACEMENT AND SHEAR SURFACE

摘要

Disclosed herein is a test apparatus for early landslide detection fully-connected with pore water pressure, surface displacement and shear surface. The test apparatus calculates a factor of safety of a slope based on variation in pore water pressure, surface displacement and shear surface of a soil mass, and predicts a change in factor of safety, thus making early landslide detection possible. In the test apparatus, while a container of a slider is moved with a soil mass loaded into the container, shear surface and surface displacement environment is provided, and the shear strength and the shear stress of the soil mass can be calculated based on the pore water pressure and the weight of the soil mass. Thereby, the factor of safety of the soil mass can be calculated, and early landslide detection can be realized by using variation of the factor of safety of the slope.

主权项

1. A test apparatus for early landslide detection fully-connected with pore water pressure, surface displacement and shear surface, the test apparatus comprising:
a frame; a flume installed on the frame so as to be adjustable in angle, the flume providing a slope for landslide materials; a slider coupled to the flume so as to be movable in a longitudinal direction of the flume, with a soil mass loaded into the slider, the soil mass constituting the landslide materials, the slider providing a shear surface of the soil mass, wherein the slider moves along with the soil mass in the longitudinal direction of the flume and simulates a surface displacement of an upper part of the soil mass and a slope failure of a lower surface of the soil mass; and a calculation unit calculating shear strength and shear stress on a failure plane of the slope based on pore water pressure and weight of the soil mass depending on the movement of the slider, and calculating a factor of safety of the slope based on the calculated shear strength and shear stress.