A Comparative Study on Fracture Characteristics of the Red Sandstone under Water and Nitrogen Gas Fracturing

<div>Stress-strain curves of specimens under uniaxial compression. UT-1, UT-2, and UT-3 denote the uniaxial compression test of specimens 1, 2, and 3, respectively.</div>

Advances in Civil Engineering

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Figure 5

Figure 5: A Comparative Study on Fracture Characteristics of the Red Sandstone under Water and Nitrogen Gas Fracturing 