Pore Structure and Fractal Characteristics of Frozen–Thawed Soft Soil

Freezing action always results in great damage to the pore structure and fractal characteristics of freezing–thawing soft soil. Nuclear magnetic resonance (NMR) can help collect data describe microstructure frozen–thawed This paper conducted a series nuclear tests interpret effect freezing duration, pressure temperature on soil’s micro-pore characteristics. The size distributions (PSDs) tested materials were obtained from NMR T2 spectra, theory was introduced properties PSD. demonstrate that soil assembly with larger tends be skeleton strong characteristics; shorter duration is, less caused by action; during thawing lower dimension value for structure, while causes frozen-thawed