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ARS Home » Research » Publications at this Location » Publication #68569
Title: ROCK CHUTES RESEARCH

Author
item Robinson, Kerry

Submitted to: Association of State Dam Safety Officials Newsletter
Publication Type: Popular Publication
Publication Acceptance Date: 5/1/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary: No new research results are reported; interpretive summary not required.

Technical Abstract: The stability of rock chutes or riprap-lined channels was examined in three separate flumes and two field-scale channels. Eight angular crushed limestone rock sizes with median particle sizes ranging from 15 to 278 mm were tested to failure on slopes of 10, 12.5, 16.7, 22.2, 33.3, and 40%. Chute stability increased as the stone size increased and as the bed slope decreased. An empirical relationship is presented to predict the highest stable unit discharge as a function of the stone size and the bed slope.