Deposit formation back analysis of a two-year iron ore slime impoundment managed by the sub-aerial method is performed using two complementary approaches. The first one tries to identify the deposit stratigraphy and its formation history. This is made possible through sorted document review (reports, design documents, personal communication, photos, etc...
View ArticleThe main purpose of this paper is to study the effect of annulus thickness on the quality of resin mixture for fully grouted resin bolt. Pullout and mixture tests were made in underground coal mines for the following arrangements: (a) 29 mm borehole diameter, and 19 mm roof bolt diameter with steel wire around the roof bolt; (b) 29 mm borehole diameter,...
View ArticleQuality of compacted fills is essential to the proper functioning of a structure as a whole. Currently, quality control is achieved by testing to determine the deviation of moisture content of recently compacted soil in relation to optimum moisture and degree of compaction reached. Based on the results, deformability, permeability and strength related c...
View ArticleGeosynthetic geofoam has a cellular structure made of expanded polystyrene (EPS) and has been used as a lightweight material for geotechnical use in embankments, bridges seat, base and sub-base of roads pavements and infrastructure protection applications. This paper presents research data on EPS laboratory tests aiming to characterize Brazilian EPS for...
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