Design of Rock Protection to Prevent Erosion by Water Flows Down Steep Slopes
Conventional stability analysis methods for determining rock armor size to protect steep (tan θ>0.1) embankments from erosion due to downslope flow do not predict the correct dependency of armor size on the slope. Consequently, such methods become very conservative (discharge factor of safety ∼8...
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| Veröffentlicht in: | Journal of hydraulic engineering (New York, N.Y.) N.Y.), 2006-10, Vol.132 (10), p.1110-1114 |
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| container_title | Journal of hydraulic engineering (New York, N.Y.) |
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| creator | Peirson, William L Cameron, Shara |
| description | Conventional stability analysis methods for determining rock armor size to protect steep
(tan
θ>0.1)
embankments from erosion due to downslope flow do not predict the correct dependency of armor size on the slope. Consequently, such methods become very conservative (discharge factor of safety
∼8
) at high slopes. We review published large-scale measurements recorded in the literature and show that adequate representation of flow aeration is important as proposed by Hartung and Scheuerlein in 1970. However, the assembled measurements show that the Hartung and Scheuerlein design method is not conservative. The aerated flow equations of Hartung and Scheuerlein, when combined with a correctly formulated stability equation, yield good collapse of the available large-scale data and a conservative design method. |
| doi_str_mv | 10.1061/(ASCE)0733-9429(2006)132:10(1110) |
| format | Article |
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(tan
θ>0.1)
embankments from erosion due to downslope flow do not predict the correct dependency of armor size on the slope. Consequently, such methods become very conservative (discharge factor of safety
∼8
) at high slopes. We review published large-scale measurements recorded in the literature and show that adequate representation of flow aeration is important as proposed by Hartung and Scheuerlein in 1970. However, the assembled measurements show that the Hartung and Scheuerlein design method is not conservative. The aerated flow equations of Hartung and Scheuerlein, when combined with a correctly formulated stability equation, yield good collapse of the available large-scale data and a conservative design method.</description><identifier>ISSN: 0733-9429</identifier><identifier>EISSN: 1943-7900</identifier><identifier>DOI: 10.1061/(ASCE)0733-9429(2006)132:10(1110)</identifier><identifier>CODEN: JHEND8</identifier><language>eng</language><publisher>Reston, VA: American Society of Civil Engineers</publisher><subject>Applied sciences ; Buildings. Public works ; Computation methods. Tables. Charts ; Exact sciences and technology ; Geotechnics ; Hydraulic constructions ; Miscellaneous ; Structural analysis. Stresses ; TECHNICAL NOTES</subject><ispartof>Journal of hydraulic engineering (New York, N.Y.), 2006-10, Vol.132 (10), p.1110-1114</ispartof><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a419t-2710ee5744a831cf9d900c8414a63e42057a1461ef0f592a03dbddadffb577ed3</citedby><cites>FETCH-LOGICAL-a419t-2710ee5744a831cf9d900c8414a63e42057a1461ef0f592a03dbddadffb577ed3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)0733-9429(2006)132:10(1110)$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)0733-9429(2006)132:10(1110)$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,75964,75972</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18156414$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Peirson, William L</creatorcontrib><creatorcontrib>Cameron, Shara</creatorcontrib><title>Design of Rock Protection to Prevent Erosion by Water Flows Down Steep Slopes</title><title>Journal of hydraulic engineering (New York, N.Y.)</title><description>Conventional stability analysis methods for determining rock armor size to protect steep
(tan
θ>0.1)
embankments from erosion due to downslope flow do not predict the correct dependency of armor size on the slope. Consequently, such methods become very conservative (discharge factor of safety
∼8
) at high slopes. We review published large-scale measurements recorded in the literature and show that adequate representation of flow aeration is important as proposed by Hartung and Scheuerlein in 1970. However, the assembled measurements show that the Hartung and Scheuerlein design method is not conservative. The aerated flow equations of Hartung and Scheuerlein, when combined with a correctly formulated stability equation, yield good collapse of the available large-scale data and a conservative design method.</description><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Computation methods. Tables. Charts</subject><subject>Exact sciences and technology</subject><subject>Geotechnics</subject><subject>Hydraulic constructions</subject><subject>Miscellaneous</subject><subject>Structural analysis. Stresses</subject><subject>TECHNICAL NOTES</subject><issn>0733-9429</issn><issn>1943-7900</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEuXxD96A2kVgJnEeRiyoSnlIIBAFsbTcZIwCIS52CuLvcSiCJStrrKM7cw9jI4QDhAwPh-PZZDqCPEkiKWI5jAGyESbxEcIQEWG0xgYoRRLlEmCdDX7JTbbl_TMAikwWA3Z9Sr5-ark1_M6WL_zW2Y7KrrYt72yY6J3ajk-d9f3X_JM_6o4cP2vsh-en9qPls45owWeNXZDfYRtGN552f95t9nA2vZ9cRFc355eT8VWkBcouinMEojQXQhcJlkZW4ciyECh0lpCIIc11uA_JgEllrCGp5lWlK2PmaZ5TlWyz_VXuwtm3JflOvda-pKbRLdmlV7FETDFU_hcEWUgo8gCerMAyVPWOjFq4-lW7T4WgeuNK9cZV71H1HlVvXAXj30AwHiL2fnZpX-rGON2Wtf_LKTDNQsXAHa-4gJF6tkvXBle_e_5b8wUAhpKZ</recordid><startdate>20061001</startdate><enddate>20061001</enddate><creator>Peirson, William L</creator><creator>Cameron, Shara</creator><general>American Society of Civil Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20061001</creationdate><title>Design of Rock Protection to Prevent Erosion by Water Flows Down Steep Slopes</title><author>Peirson, William L ; Cameron, Shara</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a419t-2710ee5744a831cf9d900c8414a63e42057a1461ef0f592a03dbddadffb577ed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Buildings. Public works</topic><topic>Computation methods. Tables. Charts</topic><topic>Exact sciences and technology</topic><topic>Geotechnics</topic><topic>Hydraulic constructions</topic><topic>Miscellaneous</topic><topic>Structural analysis. Stresses</topic><topic>TECHNICAL NOTES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Peirson, William L</creatorcontrib><creatorcontrib>Cameron, Shara</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hydraulic engineering (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Peirson, William L</au><au>Cameron, Shara</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Design of Rock Protection to Prevent Erosion by Water Flows Down Steep Slopes</atitle><jtitle>Journal of hydraulic engineering (New York, N.Y.)</jtitle><date>2006-10-01</date><risdate>2006</risdate><volume>132</volume><issue>10</issue><spage>1110</spage><epage>1114</epage><pages>1110-1114</pages><issn>0733-9429</issn><eissn>1943-7900</eissn><coden>JHEND8</coden><abstract>Conventional stability analysis methods for determining rock armor size to protect steep
(tan
θ>0.1)
embankments from erosion due to downslope flow do not predict the correct dependency of armor size on the slope. Consequently, such methods become very conservative (discharge factor of safety
∼8
) at high slopes. We review published large-scale measurements recorded in the literature and show that adequate representation of flow aeration is important as proposed by Hartung and Scheuerlein in 1970. However, the assembled measurements show that the Hartung and Scheuerlein design method is not conservative. The aerated flow equations of Hartung and Scheuerlein, when combined with a correctly formulated stability equation, yield good collapse of the available large-scale data and a conservative design method.</abstract><cop>Reston, VA</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)0733-9429(2006)132:10(1110)</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of hydraulic engineering (New York, N.Y.), 2006-10, Vol.132 (10), p.1110-1114 |
| issn | 0733-9429 1943-7900 |
| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Applied sciences Buildings. Public works Computation methods. Tables. Charts Exact sciences and technology Geotechnics Hydraulic constructions Miscellaneous Structural analysis. Stresses TECHNICAL NOTES |
| title | Design of Rock Protection to Prevent Erosion by Water Flows Down Steep Slopes |
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