000151684 001__ 151684
000151684 005__ 20190416055742.0
000151684 020__ $$a978-3-939230-00-7
000151684 037__ $$aCONF
000151684 245__ $$aExperimental design of a diversion structure of granular debris flows
000151684 269__ $$a2010
000151684 260__ $$bEd. Dittrich, Koll, Aeberle & Geisenhainer (eds)$$c2010$$aBraunschweig, Germany
000151684 336__ $$aConference Papers
000151684 500__ $$a[735]	
000151684 520__ $$aMany alpine torrents convey regularly debris flows of high destructive hazard. After several granular events observed in Bruchji?s torrent near the Blatten village in the Swiss Alps, it was decided to manage the risk of similar debris flows by designing and constructing a control structure inside the torrent bed. Associated with a breach in the right bank side of the torrent, this control structure should divert part of the moderate and high debris flow events toward the original alluvial cone. Two different configurations of the control structure were tested and optimized through a series of physical tests. The basic concept of this structure is to create a local lateral contraction of the torrent section topped by a horizontal rack or by a deflector beam. A physical model at the scale of 1:20 was built and granular debris flows were simulated by four successive discrete pulses. The behavior of the structure was tested inside the linear part and inside the bend of the channel reach. The geometry and dimensions of the control structure were also optimized to divert laterally a maximum volume of debris flow materials.This paper describes the physical model experiments, presents and discusses the main test results, and proposes an optimized geometry of the control structure. The most efficient configuration consists of a unilateral contract of the channel flow section inside a channel bend and to install a deflector beam.
000151684 6531_ $$aGranular debris flows, Experimental study, Diversion structure, Physical scaled modeling
000151684 700__ $$aStuder, M.
000151684 700__ $$0242666$$g169461$$aHachem, Fadi
000151684 700__ $$aBoillat, Jean-Louis$$g104572$$0240225
000151684 7112_ $$dSeptember 8-10, 2010$$cBraunschweig, Germany$$aRiver Flow 2010
000151684 773__ $$tRiver Flow 2010$$q1363-1369
000151684 8564_ $$uhttp://www.riverflow2010.org/$$zURL
000151684 8564_ $$uhttps://infoscience.epfl.ch/record/151684/files/2010-735-Studer_Hachem_Boillat_Experimental_design_of_a_diversion_structure_of_granular_debris_flows_River_Flow_2010.pdf$$zn/a$$s4087438$$yn/a
000151684 909C0 $$xU10263$$0252079$$pLCH
000151684 909C0 $$pPL-LCH$$xU10263$$0255473
000151684 909CO $$qGLOBAL_SET$$pconf$$pENAC$$ooai:infoscience.tind.io:151684
000151684 917Z8 $$x206365
000151684 937__ $$aEPFL-CONF-151684
000151684 973__ $$rNON-REVIEWED$$sPUBLISHED$$aEPFL
000151684 980__ $$aCONF