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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.5, 2002³â, pp.109-122
¸ð°üÈí¼ö·Â ¹× ÇÔ¼öºñ¿¡ µû¸¥ ³ë»óÅäÀÇ µ¿Àûº¯ÇüƯ¼º ¿¬±¸
( Dynamic Deformational Characteristics of Subgrade Soils with Variations of Capillary Pressure and Water Content )
±èµ¿¼ö;±è¹ÎÁ¾;¼­¿ø¼®; Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;
 
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ÁöÇ¥ºÎ±ÙÀÇ Áö¹ÝÀÇ °æ¿ì, ÇÔ¼öºñ°¡ Áö¹ÝÀÇ µ¿Àû ¹°¼ºÄ¡¿¡ Å« ¿µÇâÀ» ÁÖ´Â ¿ä¼Ò°¡ µÈ´Ù. º» ¿¬±¸¿¡¼­´Â ÇÔ¼öºñÀÇ º¯È­ ¶§¹®¿¡ ¹ß»ýÇÏ´Â ÃÖ´ëÀü´Üź¼º°è¼ö, Àü´Üź¼º°è¼ö °¨¼Ò°î¼±, °¨¼èºñÀÇ Àü¹ÝÀûÀÎ º¯È­¸¦ °øÁøÁÖ/ºñƳÀü´Ü ½ÃÇèÀ» ÅëÇØ Æò°¡Çß´Ù. ±âÁ¸ÀÇ µ¿Àû¹°¼ºÄ¡¿¡ ´ëÇÑ ´ÙÁüÇÔ¼öºñÀÇ ¿µÇâ ¿¬±¸¿Í´Â ´Þ¸® ÀÏÁ¤ÇÑ ´ÙÁüÇÔ¼öºñ·Î ¼ºÇüµÈ ½Ã·á¿¡ ´ëÇÏ¿© ¸ð°üÈí¼ö·Â(capillary pressure)À» Á¶ÀýÇÏ´Â ¹æ¹ýÀ¸·Î ÇÔ¼öºñ¸¦ º¯È­½Ã۰í À̶§ÀÇ µ¿Àû¹°¼ºÄ¡ÀÇ º¯È­¸¦ Æò°¡ÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© ±âÁ¸ÀÇ °øÁøÁÖ/ºñƲÀü´Ü½ÃÇè ½Ã½ºÅÛÀ» °³·®ÇÏ¿© ÇÔ¼öºñ º¯È­»Ó¸¸ ¾Æ´Ï¶ó ¸ð°üÈí¼ö·ÂÀÇ º¯È­¿¡ µû¸¥ µ¿Àû¹°¼ºÄ¡ÀÇ º¯È­µµ ÇÔ²² Æò°¡ÇÒ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù. ¶ÇÇÑ ½Ç³»¿¡¼­ °øÁøÁÖ/ºñƳÀü´Ü ½ÃÇèÀ¸·Î °áÁ¤µÈ ÇÔ¼öºñ¿¡ µû¸¥ Àü´Üź¼º°è¼öÀÇ º¯È­ ¾ç»óÀ» µ¿ÀÏÇöÀå(Çѱ¹µµ·Î°ø»ç ½ÃÇèµµ·Î)¿¡¼­ ¼öÇàµÈ Å©·Î½ºÈê ½ÃÇè°á°ú¿Í ºñ±³ÇÏ¿© ±× Ÿ´ç¼ºÀ» °ËÁõÇÏ¿´À¸¸ç, ÇöÀåÀ¸·ÎÀÇ È®Àå °¡´É¼ºÀ» È®ÀÎÇÏ¿´´Ù. ½Ç³»½ÃÇè°ú ÇöÀå½ÃÇèÀ¸·ÎºÎÅÍ ±¸ÇÑ Àü´Üź¼º°è¼ö´Â ÇÕ¸®ÀûÀÎ ¹üÀ§¿¡¼­ ÀÏÄ¡ÇÏ¿´À¸¸ç, ÇÔ¼öºñ°¡ °¨¼ÒÇÔ¿¡ µû¶ó Áõ°¡ÇÏ´Â °æÇâÀ» ³ªÅ¸³»¾ú´Ù.
The water content of soil near the ground subgrade varies seasonally, and dynamic deformational characteristics of soil are affected by the variation of water content. Contrary to previous studies which used various specimens of different compaction moisture contents, the influences of water content and capillary Pressure on dynamic deformational characteristics of soil were investigated using the given specimen controlling the matric suction. RC/TS(resonant column and torsional shear) testing equipment was modified so that it can control water content with changing capillary pressure(matric suction). RC/TS tests were performed on subgrade soil collected in the KHC(Korea Highway Corporation) test road. In the field, the cross-hole tests were performed and the water contents were measured at the same site to verify the feasibility and applicability of RC/TS test results. As water content decreased, the tendency of increasing shear moduli in field was well matched with laboratory test results.
 
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Capillary pressure;Cross-hole test;Dynamic deformational characteristics;RC/TS test;Water content;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.5, 2002³â, pp.109-122
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921407794)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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