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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.1, 2005³â, pp.123-131
µÚä¿òÁö¹Ý¿¡¼­ÀÇ °úÀ×°£±Ø¼ö¾Ð ¹ß»ýÀÌ Áß·Â½Ä ¾Èº®±¸Á¶¹°ÀÇ µ¿ÀûƯ¼º¿¡ ¹ÌÄ¡´Â ¿µÇ⠺м®
( Dynamic Characteristics of Gravity Quay Wall during Generation of Excess Pore Pressure in Backfill Soils )
ȲÀçÀÍ;±è¸í¸ð; ¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â ¼¼ Á¾·ùÀÇ ¾Èº®½Ã½ºÅÛ¿¡ ´ëÇØ ·£´ýÆÄ¸¦ ÀÌ¿ëÇÑ Áøµ¿´ë ½ÇÇèÀ» ¼öÇàÇÏ¿© Áøµ¿ Áß µÚä¿òÁö¹Ý¿¡¼­ ¹ß»ýÇÏ´Â °úÀ×°£±Ø¼ö¾ÐÀÌ Áß·Â½Ä ¾Èº®±¸Á¶¹° ½Ã½ºÅÛÀÇ °íÀ¯Áøµ¿¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ Áøµ¿´ë ½ÇÇè°á°ú¸¦ ÀÌ¿ëÇÑ ¿ªÇؼ®À» ÅëÇÏ¿© °úÀ×°£±Ø¼ö¾ÐÀÇ Å©±â¿¡ µû¸¥ µÚä¿òÁö¹ÝÀÇ Åº¼º°è¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. ±× °á°ú, µÚä¿òÁö¹Ý¿¡¼­ °úÀ×°£±Ø¼ö¾ÐÀÌ Áõ°¡ÇÏ¸é ¾Èº®½Ã½ºÅÛÀÇ °íÀ¯Áøµ¿¼ö´Â °¨¼ÒÇÏ°í °úÀ×°£±Ø¼ö¾ÐÀÌ °¨¼ÒÇÏ¸é °íÀ¯Áøµ¿¼ö°¡ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´À¸¸ç, ¾Èº®½Ã½ºÅÛÀÇ °íÀ¯Áøµ¿¼ö´Â µÚä¿òÁö¹Ý¿¡¼­ °úÀ×°£±Ø¼ö¾ÐÀÌ ¹ß»ýÇÏÁö ¾ÊÀ» ¶§ ¾à 44HzÀ̾úÀ¸¸ç °£±Ø¼ö¾Ðºñ°¡ 0.55ÀÏ ¶§ ¾à 16Hz±îÁö °¨¼ÒÇÏ¿´´Ù. ¶ÇÇÑ µÚä¿òÁö¹ÝÀÇ Åº¼º°è¼ö´Â °£±Ø¼ö¾Ðºñ°¡ ¾à 0.2ÀÌÇÏ¿¡¼­´Â ÃÖ´ë°ªÀ¸·Î °ÅÀÇ ÀÏÁ¤ÇÏÁö¸¸ °£±Ø¼ö¾Ðºñ°¡ ¾à 0.2ÀÌ»óÀ¸·Î Áõ°¡ÇÏ¸é ±Þ°ÝÈ÷ °¨¼ÒÇÏ¿© °£±Ø¼ö¾Ðºñ°¡ 0.55ÀÏ ¶§ °£±Ø¼ö¾Ðºñ°¡ 0ÀÏ ¶§ÀÇ Åº¼º°è¼öÀÇ ¾à $10%$±îÁö °¨¼ÒÇÏ¿´´Ù.
In this research, shaking table tests for three types of gravity quay wall system were performed to analyze the influence of excess pore pressure in backfill soils on the natural frequency of gravity quay wall systems. The elastic modulus of backfill soils was also estimated from the back analyses using the results of the shaking table tests. From the test results, it was observed that as the magnitude of excess pore pressures increased, the natural frequency of the gravity quay wall system decreased and vice versa. The natural frequency was about 44Hz when no excess pore pressure was generated in backfill soils, and decreased to about 16Hz at the pore pressure ratio of 0.55. The elastic modulus of backfill soils reached the constant maximum value when the pore pressure ratio was less than 0.2, and abruptly decreased as the pore pressure ratio became larger than that. The elastic modulus of backfill soils decreased to $10%$ of the maximum value when the pore pressure ratio was 0.55.
 
Ű¿öµå
Excess pore pressure;Gravity quay wall;Natural frequency;Shaking table test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.1, 2005³â, pp.123-131
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531935916828)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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