Analysis of Strata Behavior Process Characteristics of Gob-Side Entry Retaining with Roof Cutting and Pressure Releasing Based on Composite Roof Structure

<div>Schematic diagram of roof cutting with different composite roof structures: (a) layout of roof cutting entry retaining and (b) inclination section of retained entry: (1) weak layer in upper, (2) weak layer in middle, and (3) weak layer in lower.</div>

Shock and Vibration

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Figure 3: Analysis of Strata Behavior Process Characteristics of Gob-Side Entry Retaining with Roof Cutting and Pressure Releasing Based on Composite Roof Structure 

Figure 3 | Analysis of Strata Behavior Process Characteristics of Gob-Side Entry Retaining with Roof Cutting and Pressure Releasing Based on Composite Roof Structure 