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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.2, 2003³â, pp.15-25
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¼öÆò¹è¼öÀçÀÇ ºÒÆ÷È Åë¼öƯ¼º ¿¬±¸
( A Study on the Characteristics of Unsaturated Discharge Capacity of Horizontal Drains ) |
| À忬¼ö;¹ÚÁ¤¼ø;¹ÚÁ¤¿ë; µ¿±¹´ëÇб³ Åä¸ñȯ°æ°øÇаú;¹Ì±Øµ¿ °øº´´Ü ¼³°è´ã´ç°ü;ÅÂÁ¶ ¿£Áö´Ï¾î¸µ;
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| ¼öÆò¹è¼öÀç ³»ÀÇ ±âÆ÷·Î ÀÎÇÑ ºÒÆ÷È»óŰ¡ Åë¼ö´É¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡Çϱâ À§ÇÏ¿© ´Ü¸é Å©±â ¹× ÄÚ¾î ÇüÅ¿¡ µû¶ó 4Á¾·ùÀÇ ¹è¼öÀ縦 ¼±Á¤ÇÏ¿© ºÒÆ÷È Åë¼ö´É·Â½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. °¡¾Ð½Ã°£, ±¸¼Ó¾Ð, µ¿¼ö°æ»ç µîÀÇ º¯È¿¡ µû¸¥ ºÒÆ÷È Åë¼ö´ÉÀÇ º¯È¸¦ ºÐ¼®ÇÏ°í Æ÷È Åë¼ö´É°ú ºñ±³ÇÏ¿´´Ù. ºÐ¼®°á°ú, ºÒÆ÷È Åë¼ö´ÉÀº µ¿¼ö°æ»ç°¡ 0.01ÀÎ °æ¿ì, Æ÷È Åë¼ö´É¿¡ ºñÇØ ¹è¼öÀç ³»¿¡ ÀûüµÈ ÀÜ·ù±âÆ÷ÀÇ ¿µÇâÀ¸·Î ÀÎÇØ 17%~80% °¨¼ÒÇÏ¿´´Ù. ÀÌ´Â ¼öÆò¹è¼öÀçÀÇ °æ¿ì, ¼öÆòÀ¸·Î È帣´Â ¹°ÀÇ È帧 ¹æÇâ°ú ºÎ¾çµÇ·Á´Â ±âÆ÷ÀÇ À̵¿¹æÇâÀÌ ¼·Î ÀÏÄ¡ÇÏÁö ¾Ê±â ¶§¹®À¸·Î Æò°¡µÈ´Ù. ƯÈ÷ ¹è¼öÀçÀÇ ÄÚ¾î Çü»óÀÌ Çʶó¸àÆ® ¸ð¾çÀÎ °æ¿ì ±âÆ÷°¡ ºüÁ®³ª°¡±â ¾î·Á¿ö ºÒÆ÷È Åë¼ö´ÉÀÌ Å©°Ô ÀúÇϵǾú´Ù. |
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| To evaluate the effect of trapped air bubbles in horizontal drains on discharge capacity, unsaturated discharge capacity tests are carried out for four types of drains selected according to the size of section as well as the shape of core. Unsaturated discharge capacities with the elapse of time, the increase of confining pressures, and hydraulic gradients are examined and are compared with saturated discharge capacities. It is found that the unsaturated discharge capacities at a hydraulic gradient of 0.01 decreased by 17%~80% due to the remained air bubbles in the drains compared with the saturated discharge capacities. It is caused by the fact that the horizontal direction of water flow is not consistent with the direction of movement of floating air bubbles in case of horizontal drains. Especially, far the drain with filament shaped core, discharge capacities decreased significantly due to the difficulty in removing air bubbles. |
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| Ű¿öµå |
| Confining pressure;Horizontal drain;Hydraulic gradient;Trapped air bubbles;Unsaturated discharge capacity; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.2, 2003³â, pp.15-25
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921640666)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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