Foundation pit safety early warning method based on adaptive entropy weight fuzzy analytic hierarchy process

The invention belongs to the technical field of building engineering construction, and relates to a foundation pit safety early warning method based on an adaptive entropy weight fuzzy analytic hierarchy process, which comprises the following steps: establishing a foundation pit index stability grading table; establishing an overall foundation pit safety early warning hierarchical structure chart; calculating the weight by an adaptive entropy weight analytic hierarchy process; performing fuzzy comprehensive evaluation; and quantitatively evaluating and analyzing. According to the invention, a weight adaptive matrix A and an overall index system containing all monitoring items are provided, and the overall index weight corrected by an entropy weight method is adaptive based on the weight adaptive matrix A according to different indexes required in actual engineering, so that the index weight for specific engineering is obtained. The foundation pit automatic monitoring safety evaluation requirements of dynamic