نتایج جستجو برای: riprap design

تعداد نتایج: 960206  

Journal: :Microscopy Microanalysis Microstructures 1996

ژورنال: علوم آب و خاک 2016
سبهانی, مرتضی , مسجدی, علیرضا ,

Riprap is used to control scouring around the bridge abutment. In order to study the stability of riprap around two bridge abutments with two different shapes, experiments were conducted in a laboratory flume made of Plexiglass in 180 degree bend.  In this research, several experiments were done by placing the two bridge abutments made of Plexiglas in a series of riprap. Experiments included tw...

2005
Robert Ettema

Observations of bridge abutment scour lead to a practical new approach for estimating realistic scour IIHR-Hydroscience and Engineering depths at bridge abutments. Prior design approaches usually led to unrealistically deep estimates of abutment scour depth. The observations presented stem from flume experiments conducted with abutments with approach embankments subject to a range of erodibilit...

Journal: :Water 2022

There are increasing demands from dam safety regulations and guidelines to upgrade the rockfill dams, especially in Norway where over 180 large dams present. To protect hydraulic structure against overtopping events or leakages, it is important use defence mechanisms such as a protective layer of riprap on downstream slope. In this article, we display 9 experimental setups riprap, conducted at ...

Journal: :Sustainability 2022

The spur dike is widely used in the waterway renovation project upper reaches of Yangtze River as a remediation structure, but its water destruction very common, and influence permeable characteristics riprap on stability has been neglected many studies. Through method combining generalized flume test theoretical analysis, submerged degree dike, porosity body, size void nearby turbulent kinetic...

Journal: :Journal of Hydraulic Engineering 2015

Journal: :E3S web of conferences 2021

The current blasting compaction faces technical difficulties brought by mud depth increment. strength similarity theory provides theoretic support for deep compaction, offering a large room parameters optimization. author applied the to engineering practice and introduced soft foundation selection, safety processing effect. According detection results, riprap settlement elevation width can meet...

Journal: :Coastal Engineering Proceedings 1970

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