@article{(Open Science Index):https://publications.waset.org/pdf/12730,
	  title     = {Stabilization of Angular-Shaped Riprap under Overtopping Flows},
	  author    = {Dilavar Khan and  Z. Ahmad},
	  country	= {},
	  institution	= {},
	  abstract     = {Riprap is mostly used to prevent erosion by flows
down the steep slopes in river engineering. A total of 53 stability tests
performed on angular riprap with a median stone size ranging from
15 to 278 mm and slope ranging from 1 to 40% are used in this study.
The existing equations for the prediction of medium size of angular
stones are checked for their accuracy using the available data.
Predictions of median size using these equations are not satisfactory
and results show deviation by more than ±20% from the observed
values. A multivariable power regression analysis is performed to
propose a new equation relating the median size with unit discharge,
bed slope, riprap thickness and coefficient of uniformity. The
proposed relationship satisfactorily predicts the median angular stone
size with ±20% error. Further, the required size of the rounded stone
is more than the angular stone for the same unit discharge and the
ratio increases with unit discharge and also with embankment slope
of the riprap.},
	    journal   = {International Journal of Civil and Environmental Engineering},
	  volume    = {5},
	  number    = {11},
	  year      = {2011},
	  pages     = {550 - 554},
	  ee        = {https://publications.waset.org/pdf/12730},
	  url   	= {https://publications.waset.org/vol/59},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 59, 2011},
	}