Abstract: A new experimental device for debris flow simulation, including a material supply device, a flow channel, a stacking groove, a pole, a first high-speed camera, a second high-speed camera, a fixing frame, and a sliding rail. The material supply device is used to release the debris flow simulation material to the flow channel, to realize the start of the debris flow simulation. The stacking groove is used for the accumulation of the debris flow. The pole is used to support the stacking groove and adjust the slope of the stacking groove. The fixing frame is used to fix the first high-speed camera. The second high-speed camera can monitor the movement of the debris flow. The invention can flexibly simulate the movement characteristics of various debris flow and obtain the test data, so as to provide data support for the subsequent study.

Abstract: A three-dimensional multi-point and multi-index early warning method for risk at a power grid tower in a landslide section, including: (1) classifying the risk level of each index; (2) obtaining the value of various indexes of the power grid tower in a landslide section during a certain period of time. (3) calculating the single-index measure of each index, and obtaining the evaluating matrix of the single index measure; (4) determining the weight of each index; (5) calculating the multi-index comprehensive measure of the landslide and power tower; (6) introducing the confidence level ? to determine the comprehensive risk level of the power tower instability; (7) performing early warning based on risk level. The invention greatly improves the warning accuracy of the landslide, and realizes the accurate judgment and warning of danger of the tower.

Abstract: A new experimental device for debris flow simulation, including a material supply device, a flow channel, a stacking groove, a pole, a first high-speed camera, a second high-speed camera, a fixing frame, and a sliding rail. The material supply device is used to release the debris flow simulation material to the flow channel, to realize the start of the debris flow simulation. The stacking groove is used for the accumulation of the debris flow. The pole is used to support the stacking groove and adjust the slope of the stacking groove. The fixing frame is used to fix the first high-speed camera. The second high-speed camera can monitor the movement of the debris flow. The invention can flexibly simulate the movement characteristics of various debris flow and obtain the test data, so as to provide data support for the subsequent study.