TY - JOUR N2 - Sand drifting on road networks in the region of the Lower Algerian Sahara is one of the main problems for the sector. Machines are repeatedly deployed to overcome this phenomenon. The long experience acquired while dealing with the removal of sand from roads pushed us to focus on obstacles called "Draas". The purpose of this study is to perform an optimization of these special protective structures called “Draas”, using a reduced physical model. Model tests were performed in flow channel. The principle of modeling the wind transport using a reduced model is to simulate the wind using a liquid stream while respecting the laws of hydraulic and sedimentological similarity. The results obtained are extrapolated to make a normal size prototype. L1 - http://journals.pan.pl/Content/115609/PDF-MASTER/02_ace-2018-0042.pdf L2 - http://journals.pan.pl/Content/115609 PY - 2018 IS - No 4/I EP - 35 KW - Road networks KW - sand drifting KW - anti-sand walls KW - reduced model KW - Lower Algerian Sahara A1 - Sebaa, A.K. A1 - Belhamra, M. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES VL - Vol. 64 DA - 15.12.2018 T1 - Study of the curative role of "Draas" in evacuating dunes threatening roads in the Lower Algerian Sahara: physical model on a smaller scale SP - 15 UR - http://journals.pan.pl/dlibra/publication/edition/115609 T2 - Archives of Civil Engineering ER -