Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"earthen dams"”.
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Seismic Tomography for the Integrity Assessment of Earthen Dams and Levees.
Dams are a vital part of a nation's infrastructure. Considering the fact that many of the dams in the United States have approached or are approaching their projected life expectancy of 50 years, these critical infrastructures represent a risk to public safety. Minimizing this risk requires an …
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Geoelectric monitoring of seepage in porous media with engineering applications to earthen dams
… investigating seepage and internal erosion in earthen dams with time-lapse measurements of self-potential anomalies associated with conservative salt and non-conservative heat tracer migration in the subsurface. The method allows for 1) detecting seepage zones in earthen dams and determining …
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Integrity Assessment Of Earthen Dams And Levees Using Cross-Plot Analysis Of Seismic Refraction And Electrical Resistivity Tomograms
… to its surrounding. Geophysical anomalies in dams and levees can be due to the overall heterogeneity of the subsurface, structures such as principal spillways, artifacts of inversion software, or to a true compromised location, such as an air void due to internal erosion or seepage. Therefore, …
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Fluid flow and slope stability model
… factors of safety for the downstream slope of earthen dams were evaluated for various soil properties and various levels of water behind the dam.
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Using BCSA Cement to Repair Waterway Transportation Structures
<p>Many maritime structures (e.g., locks, dams, ports) in the US are either reaching or are past their design lives, and there are limited funds for the necessary maintenance activities which can lead to repairs that requires closures. These structures are not easy to detour and often require …
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Pilot study of horizontal roughing filtration in northern Ghana as pretreatment for highly turbid dugout water
… runoff and intermittent streams are collected in earthen dams called dugouts. These dams serve as many communities' main source of drinking and domestic water despite their physical and microbial contamination. Slow sand filtration (SSF), a low-cost technology for treating microbial contaminated …
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The development of an interactive computer model for managing geologic hazard databases
… continue to age and become more unstable and earthen dams are subjected to ever increasing flood events, a more proactive management system is required in order to provide timely information to planners and emergency personnel on demand. In recent years, deaths have occurred associated with …