Research Article

Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content

Table 3

The expression between mechanical properties and moisture content.

Rock typeMechanical propertiesExpression

SandstoneShear strength0.93
Cohesion0.94
Internal friction angle0.91

MudstoneShear strength0.94
Cohesion0.92
Internal friction angle0.86