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Çѱ¹¼öÀÚ¿øÇÐȸ / v.30, no.6, 1997³â, pp.661-669
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êÆ×µ¿¡ ÀÇÇÑ ÞªïÄó·àõ ð§ô÷¿¡¼ÀÇ êüô÷-ͳô÷ ûèùê×µÀÇ â©×â÷åàõ
( Hydraulic Characteristics of Fluid-Granule Mixed Flow in Embankment of Noncohesive Materials Due to Overflow ) |
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| º» ¿¬±¸¿¡¼´Â È«¼ö½Ã ºñÁ¡Âø¼º Á¦Ã¼ À§¸¦ ¿ù·ùÇÏ´Â È帧¿¡ ÀÇÇÑ À¯Ã¼-°íü È¥ÇÕ·ùÀÇ ¼Óµµ ºÐÆ÷¿Í ÆÇ¹ÚÇü ¼¼±¼À» ´Ù·ç°í ÀÖ´Ù. ¼Óµµ ºÐÆ÷´Â ÀÔÁö-°ü¼º ¹ýÄ¢À» ±âÃÊ·Î ÇÑ ÀÀ·Â-º¯Çü·ü °ü°è½ÄÀ¸·ÎºÎÅÍ ±¸ÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ¼¼±¼ ±íÀÌ´Â CoulombÀÇ µ¿¿ªÇÐÀû ¹ýÄ¢À» ÀÌ¿ëÇÏ¿© ±¸ÇÒ ¼ö ÀÖ¾ú´Ù. »ó±â ÀÌ·ÐÀ¸·ÎºÎÅÍ ±¸ÇÑ ÀÌ·ÐÄ¡¸¦ °ËÅäÇϱâ À§ÇØ ½ÇÇèÀ» ½Ç½ÃÇÏ¿´À¸¸ç, ½ÇÇèÄ¡¿Í ºñ±³Àû Àß ÀÏÄ¡ÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼ ¾ò¾îÁø ¼Óµµ ºÐÆ÷ÀÇ À̷нÄÀº À¯Ã¼-°íü È¥ÇÕ·ùÀÇ ¿©·¯ À¯¼Ó ºÐÆ÷¿¡ ¸ðµÎ Àû¿ë °¡´ÉÇÑ °ÍÀ¸·Î¼, Åä¼®·ù¿¡ °üÇÑ ±âÁ¸ ÀÌ·ÐÀ» »ó´çÈ÷ °³¼±½Ãų ¼ö ÀÖ´Â ½ÄÀ¸·Î Æò°¡µÇ¾ú´Ù. ¼³°è ¸ñÀûÀ» À§Çؼ, ¸¸¾à È«¼ö·®°ú ÀÔÀÚÀÇ ¼ºÁú ¹× Á¦Ã¼ÀÇ ±Ô°ÝÀÌ ÁÖ¾îÁø´Ù¸é, ¼Óµµ ºÐÆ÷¿Í ¼¼±¼ ±íÀÌ, ¿ù·ù ¼ö½É ¹× Åä»ç À¯Ãâ·®À» ±¸ÇÒ ¼ö ÀÖ´Â ½Ä ¹× µµÇ¥¸¦ Á¦½ÃÇÏ¿´´Ù. |
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| This paper presents a theoretical analysis for a velocity profile of fluid-granule mixed flow and a sheet erosion of an embankment having noncohesive materials due to overflow. The velocity profile were obtained using the stress-strain relationships based on a grain-inertia regime and an erosion depth was obtained using dynamic Coulomb criterion. Experiments were performed to compare with theoretical values and fairly good agreements were found. Theoretical results on velocity profiles, which can be applied to any type of velocity profiles in a fluid-granule mixed flow, showed a considerable improvement for the existing theories on a debris flow. for a design purpose, formulas and figure diagrams for obtaining a velocity profile, an erosion depth, an overflow depth and a granular discharge were proposed for given values of a flood discharge, particle properties and embankment scale. |
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| À¯Ã¼-°íü È¥ÇÕ·ù;ÆÇ¹ÚÇü ¼¼±¼;ÀÔÀÚ-°ü¼º ¹ýÄ¢;Åä¼®·ù;fluid-granule mixed flow;sheet erosion;grain-inertia regime;debris flow; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.30, no.6, 1997³â, pp.661-669
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920100601)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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