Full-coverage flexible sensing film, system and method for early warning of retaining wall

The invention provides a full-coverage flexible sensing film, system and method for early warning of a retaining wall, and an upper microstructure and a lower microstructure in the flexible sensing film each comprise a plurality of hemispherical microstructures which are oppositely arranged in a staggered manner to form an interlocking micro-dome array; and a plurality of pore water pressure monitoring units and underground water level monitoring units are arranged at the upper part of the first flexible substrate. Multiple factors affecting collapse and damage of the retaining wall are comprehensively considered, long-distance and distributed monitoring of the stress state of the pressure-bearing face of the retaining wall is achieved, and multiple load signals can be collected at the same time in a complex load environment to conduct full-time-space monitoring on deformation and stress conditions of the retaining wall structure. 本发明提供了一种用于挡土墙预警的全覆盖式柔性感知薄膜、系统及方法，柔性感知薄膜中的上微结构和下微结构均包括多个半球形微结构，错位相对布设，形成互锁微穹顶阵列；