نتایج جستجو برای: dike emplacement

تعداد نتایج: 2977  

            Spur dikes are one of the common methods to protect rivers against erosion. Scouring around the spur dike is an important factor that can disorder the structural performance. Using protective spur dike is proper technique reduce the scour amount. In this research, the GMDH and GEP model used in order to evaluate and estimate the effect of various parameters of protective spur dike o...

2010
Ran Qin W. Roger Buck

Numerical models show that maximum dike width at oceanic spreading centers should scale with axial lithospheric thickness if the pre-diking horizontal stress is close to the Andersonian normal faulting stress and the stress is fully released in one dike intrusion. Dikes at slow-spreading ridges could be over 5 m wide and maximum dike width should decrease with increasing plate spreading rate. H...

Journal: :پژوهش های حفاظت آب و خاک 0

spur dike is an important element for protection of river banks. spur dike causes variations in flow field, sediment transport and bed topography. the mechanism of flow and sediment transport in a channel bend is very complex, especially when a spur dike is constructed in a bend. in this paper the time variations of dimension of the scour hole and the bed’s topography were considered around a t...

Journal: :CoRR 2012
N. B. Melnikova Valeria V. Krzhizhanovskaya Peter M. A. Sloot

The paper describes concept and implementation details of integrating a finite element module for dike stability analysis “Virtual Dike” into an early warning system for flood protection. The module operates in real-time mode and includes fluid and structural submodels for simulation of porous flow through the dike and for dike stability analysis. Realtime measurements obtained from pore pressu...

Journal: :Journal of Structural Geology 2021

Plutons in crustal shear zones may exploit inherited structures, interfere with strain localizing or be deformed passively. To constrain the relative timing of such tectono-magmatic relationships natural settings is not always straight-forward. We here present sandbox-type analogue model experiments simulating magma emplacement into simple and transtensional to test diagnostic potential pluton ...

ژورنال: علوم آب و خاک 2018

In this study, the performance of slot in the spur dike was evaluated as a way to reduce the scouring around the installed flat spur dike in a 180 degree bend and the development of scouring in the slotted spur dike was compared with that of the spur dike with no slot. To evaluate the effect of the slot on the development of scouring around it, a flat spur dike made of Plax Glass was installed ...

2004
Derman Dondurur Oya Ankaya Pamukçu

A theoretical and a field study were performed for the interpretation of the vertical component magnetic anomalies from dipping dike model with infinite depth extent. Damped least squares inverse solution, Hilbert transform and power spectrum methods were used in interpretation. The parameters affecting the power spectrum of the analytical model response were determined and discussed. Damped le...

Journal: :Frontiers in Earth Science 2021

Dikes feed most eruptions, so understanding their mechanism of propagation is fundamental for volcanic hazard assessment. The variation in geometry a propagating dike as function the injection rate remains poorly studied. Here we use experiments injecting water into gelatin to investigate thickness, width and length flux-driven connected its source time intruded volume. Results show that thickn...

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