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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.295-307
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( Compressibility Characteristics of Estuarine Clays in the Nakdong River Plain )
Á¤¼º±³;°ûÁ¤¹Î;Àå¿ì¿µ;±è´ö°ï; µ¿¾Æ´ëÇб³ Åä¸ñ°øÇаú;µ¿¾Æ´ëÇб³ Åä¸ñ°øÇаú;ÀϺ» ±³Åä´ëÇÐ ´ëÇпø;µ¿¾Æ´ëÇб³ Åä¸ñ°øÇаú ´ëÇпø;
 
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³«µ¿°­Çϱ¸ Áö¿ª¿¡´Â µÎÅÍ¿î Á¡¼ºÅä ÅðÀûÁö¹ÝÀÌ ³Ð°Ô ºÐÆ÷µÇ¾î ÀÖ´Ù. 1990³â´ë ÃʹݺÎÅÍ ÀÌ·¯ÇÑ Á¡¼ºÅä ÅðÀûÁö¹ÝÀ» ÀÌ¿ëÇÑ °ø¾÷ ¹× ÁÖ°Å´ÜÁö µîÀÇ È®º¸¸¦ À§ÇØ °³¹ßÀÌ È°¹ßÇÏ°Ô ÁøÇàµÇ¾î ¿Ô´Ù. ÀÌ °úÁ¤¿¡¼­ ¼ö¸¹Àº Áö¹ÝÁ¶»ç°¡ ½Ç½ÃµÇ¾úÀ½¿¡µµ ºÒ±¸Çϰí À̵é Á¡¼ºÅä Áö¹ÝÀÇ ÅäÁúƯ¼ºÀÌ ¸íÈ®ÇÏ°Ô ±Ô¸íµÇÁö ¸øÇßÀ¸¸ç, ¶ÇÇÑ À߸ø °áÁ¤µÈ ÅäÁúÁ¤¼ö·Î ÀÎÇÏ¿© Áö¹ÝħÇÏ ¿¹ÃøÀÌ °ú¼ÒÆò°¡ µÇ´Â µîÀÇ ¹®Á¦Á¡À» ¾È°íÀÖ´Ù. ÀÌ·¯ÇÑ Ä§Çϰŵ¿À» ÀÌÇØÇϱâ À§Çؼ­´Â ¾ÐÃàÆ¯¼ºÀ» Æ÷ÇÔÇÑ ÅäÁúƯ¼ºÀ» ¸íÈ®È÷ ±Ô¸íÇÏ´Â °ÍÀÌ ÇÊ¿äÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â, ºÎ»êÁ¡ÅäÀÇ ¾ÐÃàÆ¯¼ºÀ» ±Ô¸íÇϱâ À§ÇÏ¿© À籸¼ºµÈ ½Ã·á¿Í ºÒ±³¶õ ½Ã·á¸¦ ÀÌ¿ëÇÏ¿© ±âº»ÀûÀÎ ¹°¼º½ÃÇè°ú ¾Ð¹Ð½ÃÇèÀÌ ¼öÇàµÇ¾ú´Ù. ¹°¸®Àû Ư¼ºÀ¸·ÎºÎÅÍ ºÎ»êÁ¡Åä´Â »óºÎ¿Í ÇϺÎÃþÀÇ ±¸ºÐÀÌ ¶Ñ·ÇÇÏ°Ô ³ªÅ¸³ª¸ç, ÅðÀûȯ°æÀÌ ¼­·Î »óÀÌÇÑ °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. Bluland(1990)¿Í Nagaraj(2000)ÀÇ ¿¬±¸¸¦ ¹è°æÀ¸·Î ºÎ»êÁ¡ÅäÀÇ °íÀ¯»óż±°ú ÇöÀå¾ÐÃà°î¼±À» ±¸ÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ºÎ»êÁ¡Åä°¡ °í°áÀÛ¿ëÀÌ ¹ß´ÞµÈ Àå³â±â(young) Á¤±Ô¾Ð¹Ð Á¡Åä¶ó´Â °Í°ú ´ë°³ 2°³ÀÇ ¼ºÁúÀÌ ´Ù¸¥ ÁöÃþÀ¸·Î ±¸¼ºµÇ¾î ÀÖ´Ù´Â »ç½ÇÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ¾ÐÃàÁö¼öºñ(Tsuchida et.al.,1991)¿Í ¿¹¹Îºñ(Leroueil et. al.,1983)·ÎºÎÅÍ °í°áÈ¿°ú¸¦ È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In the Nakdong River plain a very thick clayey soils are covered widely. Since the early 1990's, some huge reclamation projects have been performed for the development of industrial and residential complexes and so on. Despite a large number of soil investigations have been carried out for the projects, the geotechnical properties have never been elucidated well, so that the settlements of the ground due to the mischaracterized properties were greatly underestimated. Therefore, it has been needed to evaluate definitely the characteristics of the clayey soils, particularly for the compressibility characteristics to help understand the settlement behavior. For the compressibility characteristics of the Pusan clays, physical index and consolidation tests were conducted on the reconstituted and undisturbed samples. Using the result of physical index, the Pusan clays could be divided into two different units, which have different depositional environments. According to the concepts of Burland (1990) and Nagaraj et. al. (1990), the intrinsic state line and field compression curve of the Pusan clays could be established. It could be found from their concepts that the Pusan clays are under the cemented and young normally consolidated state and largely consisted of two units. The cementation of the clays was as well identified by compression index ratio (Tsuchida et. al.,1991) and sensitivity (Leroueil et. al.,1983).
 
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Clayey soil;Compressibility characteristics;Depositional state;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.295-307
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921342168)
¾ð¾î : Çѱ¹¾î
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