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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.6, 2002³â, pp.83-101
ź¼ºÆÄ¸¦ ÀÌ¿ëÇÑ ÈëÀÇ Æ¯¼º¿¬±¸
( Soil Properties in Relation to Elastic Wave )
Á¶°èÃá;ÀÌÀθð; Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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ź¼ºÆÄ´Â ÁöÇ¥¸é¿¡ °¡±î¿î Èë¿¡ °üÇÑ Áß¿äÇÑ Á¤º¸¸¦ °ø±ÞÇÑ´Ù. ÈëÆ¯¼º ÆÄ¾Ç¿¡ ¹°¸®Å½»ç±â¹ýÀÇ ¿øÈ°ÇÑ Àû¿ëÀ» À§ÇÏ¿© ź¼ºÆÄÀÎÀÚ¿Í ÈëÆ¯¼º°úÀÇ °ü°è¸¦ °íÂûÇÏ¿´´Ù. Àû¿ë ¿¹·Î¼­, ºñÆ÷È­ÅäÀÇ °Åµ¿ ¹× Ư¼ºÀ» Àü´ÜÆÄ ½ÃÇèÀ» ÅëÇÏ¿© ¾Ë¾Æº¸¾Ò´Ù. Æ÷È­½Ã·á¸¦ °ÇÁ¶Çϸ鼭 ¹ê´õ¿¤¸®¸ÕÆ®¸¦ »ç¿ëÇÏ¿© ¹Ì¼Òº¯Çü·ü Àü´Ü°­¼ºÀ» ¿¬¼ÓÀûÀ¸·Î ÃøÁ¤ÇÏ¿´´Ù. ºñÆ÷È­Åä¿¡¼­´Â ¸ð¼¼°üÇö»ó, À̿°øÀ¯¿¡ ÀÇÇÑ Á¢Âø, ¼¼¸³ÀÚ À̵¿¿¡ ÀÇÇÑ °­È­È¿°ú, ¿° ħÀü¿¡ ÀÇÇÑ ½Ã¸àÆ®°áÇÕ°ú °°Àº ÀÔÀÚ°£ ÈûÀÇ º¯È­°¡ °­¼ºÀÇ º¯È­¿¡ Á÷Á¢ÀûÀ¸·Î ¿µÇâÀ» ³¢Ä¡´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ºñÆ÷È­ÅäÀÇ ½Ã·á¸¦ ±³¶õÇÔÀ¸·Î½á ¸Þ´Ï½ºÄ¿½ºÀÇ È¸º¹¿¡ ´ëÇÑ ¿¬±¸¸¦ ¼öÇàÇÏ¿´°í, ºñÆ÷È­Åä¿¡¼­ ÀϾ´Â ¿©·¯ °¡Áö Çö»óµéÀ» Á¦½ÃÇÏ¿´´Ù.
Elastic waves provide an important information about the soil mass in the near-surface. Soil properties in relation to elastic wave parameters are clarified to facilitate the application of geophysical technique to soil characterization. As an example, experiments are performed to gain further insight into the behavior of unsaturated particulate materials using bender elements. The small strain stiffness is continuously measured on specimens subjected to drying, and changes in stiffness are related to changes in interparticle forces such as capillarity, bonding due to ion sharing, buttress effect due to fine migration, and cementation due to salt precipitation. The rate of menisci regeneration is studied after a perturbation as well. Finally, several phenomena associated with the evolution of capillary forces during drying are identified.
 
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Bender element;Capillary force;Elastic wave;Geophysical technique;Meniscus;Small strain stiffness;Shear wave;Unsaturated soil;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.6, 2002³â, pp.83-101
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921511350)
¾ð¾î : Çѱ¹¾î
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