Figure 4

Monitoring equipment layout diagram. (a) Preset fractured pvc sheets. (b) White ash line of soil. (c) Soil pressure monitoring equipment. (d) Optical fiber embedding process. (e) Surface displacement monitoring equipment. (f) Buried ___location diagram of various monitoring components. The bottom plate of the model box was 0Â m thick, and the surface of the soil was 2.2Â m thick.