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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.7, 2007³â, pp.77-86
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½Ç³» ½ÃÇè±â¿¡ ÀÇÇÑ Áö¿À±×¸®µåÀÇ ½Ã°ø ½Ã ¼Õ»ó Æò°¡
( Installation Damage Assessment of Geogrids by Laboratory Tester ) |
| ÀüÇÑ¿ë;Áø¿ë¹ü;À忬¼ö;À¯Ãæ½Ä; ÀÎÇÏ´ëÇб³ ³ª³ë½Ã½ºÅÛ°øÇкÎ;Çѱ¹ÀÇ·ù½ÃÇ迬±¸¿ø;µ¿±¹´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;¼º±Õ°ü´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;
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| ½Ç³» ½ÃÇè±â¿¡ ÀÇÇÏ¿© 3°¡Áö ŸÀÔÀÇ Áö¿À±×¸®µåÀÇ ½Ã°ø ½Ã ¼Õ»óÀ» ¾Ð¹ÐÁ¶°Ç¿¡ µû¶ó Æò°¡ÇÏ¿´´Ù. ÀÌ ½ÇÇèÀº ENV ISO 10722-1¿¡ ±Ù°ÅÇÏ¿© ½ÇÇàµÇ¾ú´Ù. ¿ì¼± ½ÇÇè¿¡ »ç¿ëµÈ Èë ÀÔÀÚÀÇ ÀÔµµºÐ¼®°ú ÇÔ¼öºñ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ±×¸®°í ³»½Ã°ø¼º¿¡ ¿µÇâÀ» ÁÖ´Â ÀÎÀڷμ ¹Ýº¹ÇÏÁß°ú Áö¿À±×¸®µåÀÇ Å¸ÀÔÀ» º¯È½ÃÄ×´Ù. ½ÇÇè¿¡ »ç¿ëµÈ ½Ã·á´Â 6, 8, 10T woven, warp-knitted, welded typeÀÇ Áö¿À±×¸®µåÀÌ´Ù. ÀÌ ½ÇÇèÀº ¹Ýº¹ÇÏÁß°ú °¨¼Ò°è¼öÀÇ °ü°è¸¦ ¼³¸íÇϱ⠱ԸíÇϱâ À§ÇÏ¿© ÁøÇàµÇ¾ú´Ù. ½ÇÇè °á°ú ¹Ýº¹ÇÏÁßÀº Áö¿À±×¸®µåÀÇ ¼Õ»ó°ú ¹ÐÁ¢ÇÑ °ü·ÃÀÌ ÀÖ¾ú´Ù. ƯÈ÷, welded typeÀÇ Áö¿À±×¸®µåÀÇ °æ¿ì´Â ´Ù¸¥ Á¾·ùÀÇ Áö¿À±×¸®µåº¸´Ù ´õ ³·Àº °¨¼Ò°æÇâÀ» º¸¿´´Âµ¥ ÀÌ´Â coating material ¶§¹®ÀÌ´Ù. Áï welded typeÀÇ Áö¿À±×¸®µå´Â ÇǺ¹ Àç·á°¡ PPÀ̳ª ³ª¸ÓÁö ´Ù¸¥ µÎ Á¾·ùÀÇ °æ¿ì PVC·Î µÇ¾îÀÖ´Ù. ´ÙÁü Ƚ¼ö ÀÌ¿ÜÀÇ °¨¼Ò °è¼ö¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© ½ÇÇèÀ» ÇÏ¿´´Ù. Èë ÀÔÀÚÀÇ Å©±â°¡ 9.5mmÀÌ»ó 23.5mmÀÌÇÏÀÎ ÀÚ°¥À» °¡Áö°í ´Ù½Ã ³»½Ã°ø¼º ½ÃÇèÀ» ÇÏ¿´´Ù. ½Ã·á Æ÷¼³ Àü ÈëÀÇ ´ÙÁü Ƚ¼ö¸¦ 200ȸ·Î ÇÏ¿´À¸¸ç, ±× ÀÌÀ¯´Â À̶§ÀÇ °¨¼Ò°è¼ö°¡ ´Ù¸¥ Á¶°Çº¸´Ù ´õ Å©±â ¶§¹®À̾ú´Ù. |
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| Installation damage of 3 types of geogrids was evaluated with compaction condition by laboratory tester. This experimental was in accordance with ENV ISO 10722-1. First, soil distribution and water content were conducted. And then we changed cyclic loading time and type of geogrids as a factor of installation damage. The samples are woven, warp-knitted, welded type of 6, 8, 10T. This study aims to give an insight into the relationships between installation damage and cyclic loading time. The result of studies was that strength of the damaged geogrids can be closely correlated with the time of loading cycles. Especially, welded type shows slower slope than two types of geogrids due to coating materials. That means welded type is coated with PP (Polypropylene), but the other two types of geogrids are coated with PVC (Polyvinyl Chloride). To confirm another factor different method was performed. The size of soil was used between 9.5 mm and 23.5 m to compare initial experimental. Cyclic loading compaction is taken 200 times before installation test and the reason is that the reduction factor of this case by installation damage was higher than other compaction loading conditions. |
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| Ű¿öµå |
| Cyclic loading compaction number;ENV ISO 10722-1;Geogrids;Installation damage;Soil distribution and water content; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.7, 2007³â, pp.77-86
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734514821667)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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