Proceedings of the symposium on engineering geological aspects of deltaic areas (Renesse, 1979)
-investigation methods for soil mechanics and foundation engineering in deltaic regions. Engineering geology and the Thames Barrier project. The storm surge barrier in the Oosterschelde. Foundation aspects of the Eastern Scheldt storm surge barrier. Engineering
The regional extent of computer numerically controlled (CNC) machine tool adoption and post adoption success in small British mechanicalengineering firms
Industry ; Innovation ; Investment ; Mechanicalengineering ; Production cost ; Public assistance ; Small firm ; Technology ; United Kingdom
Bank undercutting and tension failure by groundwater seepage : predicting failure mechanisms
The goal of this study was to induce and evaluate seepage failure mechanisms (i.e. reduced soil shear strength, seepage gradient forces, and seepage particle mobilization and undercutting) using varying hydraulic conditions across a range of soil
types. The AA. also hypothesized a factor of safety concept to derive a dimensionless seepage mechanism (SM) number and evaluated it based on the ratio of resistive cohesion forces to the driving forces leading to instability including seepage gradients
with an assumed steady-state seepage angle. The SM number reasonably predicted the seepage failure mechanism (tension failure versus undercutting) based on the geotechnical properties and assumed steady-state seepage gradients of the physical-scale laboratory
[b1] Dept. of Biosystems and Agricultural Engineering, Oklahoma State Univ., Stillwater, Etats-Unis
[b2] US Army Corps of Engineers (USACE), Hydraulics Division, Tulsa, Etats-Unis
response. This research represented the first attempt to link the mechanical properties of developing regolith with slope angle changes over geological time, and is a significant milestone in the integration of engineering soil mechanical principles
In the southwest Yukon the landscape is dominated by mass movement forms, many of which developed rapidly. The importance of an understanding of the occurence of instability, trigger mechanisms and mass movement mechanisms for landscape
interpretation is stressed. Engineering studies, which have long recognized the importance of catastrophic rock slides and avalanches, serve as models for the development of hypothesis that instability and mass movement characterized the paraglacial environment.
This paper describes seepage flows, soil moisture conditions, and failure mechanisms for 3 laboratory experiments on reconstructed eastern North Carolina streambanks with layered soils subject to lateral seepage. The observed failure mechanisms
[b1] North Carolina State Univ., Biological and Agricultural Engineering, Raleigh, Etats-Unis
[b2] Dep. of Biosystems and Agricultural Engineering, Oklahoma State Univ., Stillwater, Etats-Unis
This paper enlists appropriate concepts in soil mechanics, structural geology and agricultural engineering to interpret the possible stress-strain components that rearrange fabric units into plasma separations. A conceptual model is suggested
Some engineering geomorphologic, soil-mechanic and hydrogeologic researches have been made. Danube appeared on this site only in the mid-Würmian period according to radiocarbon date. - (DLO)
Based on existing field and experimental observations, the AA. propose 2 different mechanisms that may be responsible for the presence of mid-channel bars in meandering channels : a ‘width-forced’ and a ‘curvature-forced’ mechanism. They investigate
the 2 processes separately within the same mathematical framework. Hypotheses on how these mechanisms operate are further discussed through an application to field cases (Sacramento River, USA; River Bollin and River Dean UK). The outcomes of this first
[b1] Dep. of Civil and Environmental Engineering, Univ., Trento, Italie
[b1] Key Lab. of Mechanics on Environment and Disaster in Western China, the Ministry of Education of China, School of Civil Engineering and Mechanics, Univ., Lanzhou, Chine