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

<div>Diagram of composite roof beam model: q is the uniformly distributed load of roof beam model; h1, h2, and h3 are the thicknesses of each rock layer; E1, E2, and E3 are the elasticity moduli of each rock layer; and I1, I2, and I3 are the inertia moments of each rock layer.</div>

Shock and Vibration

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Figure 2: Analysis of Strata Behavior Process Characteristics of Gob-Side Entry Retaining with Roof Cutting and Pressure Releasing Based on Composite Roof Structure 

Figure 2 | Analysis of Strata Behavior Process Characteristics of Gob-Side Entry Retaining with Roof Cutting and Pressure Releasing Based on Composite Roof Structure 