High and steep slope rapid construction and whole process safety degree control method

The invention relates to a high and steep slope rapid construction and whole process safety degree control method which comprises the following steps: firstly, dividing a high and steep slope into multiple stages of slopes from top to bottom according to the height and geological conditions of the high and steep slope, and arranging a wide riding track between every two adjacent stages of slopes; then a geologic model of the high and steep slope is constructed, static and dynamic safety degree calculation and analysis are carried out on each stage of slope and the whole slope before and after rapid excavation and support, and the layer-following support strength and the whole support scheme are determined; each stage of side slope is subjected to step-by-step blasting excavation, and narrow riding tracks are arranged between excavation steps of the side slopes of the same stage; the side slope is excavated in each ladder section for layered deslagging, and shallow-layer shotcrete-anchor supporting of the side