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Lessons Learned: Failure of a Hydroelectric Power Project Dam
Publisher: American Society of Civil Engineers
Abstract: The case of a hydroelectric power project is presented to show how lack of understanding and poor filter design, along with insufficient control of construction quality, caused the failure of a dam. This paper summarizes ...
Assessment and Rehabilitation of Embankment Dams
Publisher: American Society of Civil Engineers
Abstract: A series of observations, studies, and analyses to be made in the field and in the office are presented to gain a proper understanding of how an embankment dam fits into its geologic setting and how it interacts with the ...
Deep Excavation in Shale for a Hydroelectric Facility
Publisher: American Society of Civil Engineers
Abstract: This paper describes the important engineering features relating to the design and construction of a deep excavation for power canal, intake, and powerhouse structure of the Hudson Falls hydroelectric development on the ...
Airborne Laser Terrain Mapping for Expediting Highway Projects: Evaluation of Accuracy and Cost
Publisher: American Society of Civil Engineers
Abstract: A typical highway project generally takes 5 years or more from planning phase to construction stage, particularly in wooded and difficult terrain using traditional topographic terrain mapping methods. This paper presents ...
Mechanical and Durability Properties of Mortars Modified with Combined Polymer and Supplementary Cementitious Materials
Publisher: American Society of Civil Engineers
Abstract: Repair and restoration work of reinforced-concrete (RC) structures is increasing because of the deterioration of aging infrastructures worldwide. Generally, plain mortar and polymer-modified mortar are widely used as repair ...
Existence of Dividing Strength in Concrete Containing Recycled Coarse Aggregate
Publisher: American Society of Civil Engineers
Abstract: Concrete is a composite material consisting of mortar and coarse aggregates. The use of recycled aggregates in concrete is increasing gradually. Recycled coarse aggregates are highly porous and often contain microcracks ...
Dynamic Response of Concrete-Faced Rockfill Dams to Strong Seismic Excitation
Publisher: American Society of Civil Engineers
Abstract: A dynamic plane-strain finite-element study of the response of a typical 100-m-tall concrete-faced rockfill (CFR) dam to strong seismic shaking is presented. The rockfill is modeled as an equivalent-linear material, whose ...
Permanent Deformation on Preexisting Sliding Surfaces in Dams
Publisher: American Society of Civil Engineers
Abstract: A finite‐element model capable of computing permanent deformations along preexisting sliding surfaces in dams and embankments is used to evaluate the error in the current state‐of‐practice two‐step procedures that are based ...
Ballistic Testing of Polymer Composites to Manufacture Emergency Safe House Shelters
Publisher: American Society of Civil Engineers
Abstract: Ballistic impact testing was carried out on panels of both S-2 glass/epoxy system and graphite/epoxy laminates with and without polycarbonate facing. Both the striking velocity and exit velocity were measured using magnetic ...
Determination of Dynamic Amplification Factors Using Site-Specific B-WIM Data
Publisher: American Society of Civil Engineers
Abstract: The dynamic amplification factor (DAF) is a significant parameter for new bridge design and characterization of existing bridges. The AASHTO code provides a predicted value based on an assumed structural model, but not one ...
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