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43
Vol

Tunnel Misalignment with Geostatic Principal Stress Directions in Anisotropic Rock Masses

February 13, 2020
Rock masses may present pronounced stress anisotropy, and so it is likely that a tunnel is misaligned with the geostatic principal stress directions. As a consequence, anti-symmetric axial displacements and axial shear stresses are induced around the tunnel due to the presence of far-field axial shear stresses. Limited research has been conducted on the effects ...
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43
Vol

Modifications in the Chemical and Mineralogical Composition of Compacted Mature Residual Soil Submitted to the Percolation of Acidic Leachates

January 29, 2020
The main goal of this paper is to evaluate the chemical and mineralogical composition of a compacted residual clay soil with the addition of Portland cement and under different compaction conditions to observe and to understand the chemical and mineralogical changes that these structures undergo. Results of chemical and mineralogical composition of compacted spe...
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43
Vol

Spread footings bearing on circular and square cement-stabilized sand layers above weakly bonded residual soil

July 06, 2020

The practice of soil-cement reinforced layers to bear shallow foundations is a feasible option in low bearing capacity soils. This paper addresses the interpretation of plate load tests bearing on compacted artificially cemented sand layers of distinct sizes and shapes (cylindrical and prismatic) overlaying a weakly bonded residual soil stratum. Static ...

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43
Vol

Guidelines and recommendations on minimum factors of safety for slope stability of tailings dams

June 24, 2020

Recent major upstream raised tailings dam failures have led to a reopening of the discussion of the validity of some of the existing routine practices within the profession. Despite its many shortcomings, deterministic slope stability limit equilibrium analysis is and will continue to be, at least for some time ahead, an important tool for tailings dams...

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