|
|
|
Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.7, 2010³â, pp.657-666
|
Áؼ³ÇÏõÀÇ ¿õµ¢ÀÌ ÀûÀÀ¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸
( Experimental Study on the Adjustment Processes of Minning Pit in the Dredged Channels ) |
| Àåâ·¡;Á¤°ü¼ö; ÃæÁÖ´ëÇб³ Åä¸ñ°øÇаú;Ãæ³²´ëÇб³ Åä¸ñ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸¿¡¼´Â ÇϵµÁؼ³ ¹× °ñÀçäÃë¿¡ ÀÇÇÑ ±³¶õÇÏõÀÇ ÀûÀÀ°úÁ¤À» Á¤·®ÀûÀ¸·Î ÆÄ¾ÇÇϱâ À§ÇÏ¿© À̵¿»ó ½Ç³»½ÇÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, ÇÏ»ó°æ»ç ¹× °ñÀçäÃ븦 À§ÇÑ Áؼ³ ±Ô¸ðÀÇ º¯È¿¡ µû¸¥ ÇϵµÀÇ ÀÀ´ä Ư¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ¿õµ¢ÀÌÀÇ µÇ¸Þ¿ì±â°¡ ÁøÇà ÁßÀÏ ¶§¿¡´Â ¿õµ¢ÀÌÀÇ À̵¿¼Óµµ´Â ÀÏÁ¤ÇÏÁö¸¸, µÇ¸Þ¿ì±â°¡ ¿Ï·áµÈ ÈÄ¿¡´Â ¿õµ¢ÀÌ(pit)ÀÇ À̵¿¼Óµµ°¡ ºü¸£°Ô ÁøÇàµÈ´Ù. ¶ÇÇÑ ¿õµ¢À̰¡ µÇ¸Þ¿öÁö´Â µ¿¾È¿¡ ¿õµ¢ÀÌÀÇ ¼öÁß ¾È½Ä°¢Àº ÀÏÁ¤ÇÏ°Ô À¯ÁöµÇ¾ú´Ù. ÇÏ»ó°æ»ç°¡ ±ÞÇÒ °æ¿ì¿¡, ¿õµ¢À̰¡ µÇ¸Þ¿öÁö´Â ½Ã°£°ú À̵¿¼Óµµ°¡ Áõ°¡ÇÏ¿´´Ù. °ñÀçäÃë¿¡ ÀÇÇÑ ÇÏõÁؼ³ÀÇ ±Ô¸ð°¡ Áõ°¡ÇÏ°Ô µÇ¸é, ¿õµ¢ÀÌÀÇ µÇ¸Þ¿öÁö´Â ½Ã°£ÀÌ Áõ°¡ÇÏ°Ô µÇ¸ç, ¿õµ¢ÀÌÀÇ ±Ô¸ð°¡ Áõ°¡ÇÒ¼ö·Ï ÀûÀÀ½Ã°£ÀÌ Áõ°¡ÇÏ¿´´Ù. ¹«Â÷¿ø ¸¶Âû¼Óµµ°¡ Áõ°¡ÇÏ¸é ¹«Â÷¿ø ¿õµ¢ÀÌ ±íÀÌ´Â °¨¼ÒÇÏ°í ¹«Â÷¿ø ¿õµ¢ÀÌ À̵¿¼Óµµ°¡ Áõ°¡ÇÏ¿´´Ù. ¿õµ¢ÀÌ À̵¿¼Óµµ°¡ Áõ°¡ÇÏ¸é ¹«Â÷¿ø ¿õµ¢ÀÌ ±íÀ̰¡ °¨¼ÒÇÏ¿´´Ù. ¹«Â÷¿ø »çÁÖÀÇ À̵¿¼Óµµ°¡ Áõ°¡Çϸé, ¿õµ¢ÀÌÀÇ À̵¿¼Óµµ°¡ Áõ°¡ÇÏ¿´´Ù. »ó·ù¿¡¼ ¹ß´ÞÇÑ »çÁÖÀÇ À̵¿ÀÌ ÆíÇâµÇ¸é, È帧ÀÌ ÁýÁߵǴ »çÁÖÀÇ ¼±´ÜºÎÀÇ À§Ä¡¿¡ µû¶ó ¿õµ¢ÀÌÀÇ Çü»óÀÌ º¯ÇüµÇ¾î ÇÏ·ù·Î À̵¿ÇÏ¿´´Ù. |
|
| The adjustment processes of mining pits in the disturbed channels by sand or gravel mining were investigated by laboratory experiments in this study. The pit migrated with speed when the river bed was steep. The pit migrated slow and steady when the pit was filling with sand, but the pit migrated with speed after the filling processes was finished. The submerged angle of repose in the pit was nearly constant during the pit was filling. The pit was filled with sand with speed as the channel slope was increased. It took time for the pit to be filled with sand as the pit dimension was increased. This meant that the disturbed channels by sand or gravel mining to adjust the new environment was dependent on the slope of the channels and the dimension of the pits. The dimensionless pit length was short and the dimensionless pit depth was shallow as the time was increased. The dimensionless pit depth was shallow, but the dimensionless pit migration speed was increased as the dimensionless shear velocity and the migration speed of the pit were increased. The dimensionless pit depth was increased with the dimensionless bar migration speed. The shape of the pit was deformed and migrated downstream in accordance with the location and shape of the biased bar front which was developed upstream. |
| |
| Ű¿öµå |
| Áؼ³ÇÏõ;¿õµ¢ÀÌ;Çϻ󺯵¿;ÀûÀÀ°úÁ¤;dredged channel;mining pit;bed change;adjustment processes; |
| |
|
|
 |
|
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.7, 2010³â, pp.657-666
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201022262412333)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|