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2. ASTM D2216-19, 2019. Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass. ASTM International: West Conshohocken, PA, USA, 1990.
3. ASTM D3080-04, 2012. Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions. ASTM International: West Conshohocken, PA, USA, 1990.
4. ASTM D6913-04, 2017. Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis. ASTM International: West Conshohocken, PA, USA, 1990.
5. Budach, C., 2012. Untersuchungen zum erweiterten Einsatz von Erddruckschilden in grobkörnigem Lockergestein (Transl.: Investigations for extended use of EPBShields in coarse-grained soils). Ph.D. Thesis, Ruhr-Universität Bochum, Bochum, Germany.