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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.6, 2006³â, pp.41-49
¹Ýº¹ÀçÇÏ¿¡ ÀÇÇÑ ¹Ì¾×»óÈ­ À缺Çü dzȭÅäÀÇ º¯Çü Ư¼º
( Deformation Characteristics of Non-liquefied, Reconstituted, Weathered Residual Soils due to the Cyclic Loading )
ÃÖ¿¬¼ö;À±Âù¿µ;ÀåÀÇ·æ;Á¤Ãæ±â; ¼­¿ï´ëÇб³ ´ëÇпø Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ±¹ÅäÁö¹Ý¿¬±¸ºÎ;¼­¿ï´ëÇб³ ´ëÇпø Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;
 
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ÀÌ ³í¹®¿¡¼­´Â ¹Ýº¹ÀûÀÎ ÇÏÁß¿¡ ÀÇÇØ ¹ß»ýÇÑ µ¿Àû °úÀ×°£±Ø¼ö¾ÐÀÇ ¹ß»ý°ú ¼Ò»êÀ» ½Ç³»½ÃÇèÀ» ÅëÇÏ¿© ¿¬±¸ÇÏ¿´´Ù. À̸¦ À§ÇØ ±¹³» °Ç¼³ ÇöÀå¿¡¼­ °Ç¼³Àç·á·Î ³Î¸® »ç¿ëµÇ°í Àִ dzȭÅ並 À缺ÇüÇÏ¿© ½Ç³»¿¡¼­ ¹Ýº¹»ïÃà½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ±× °á°ú ºñ¹è¼ö ¹Ýº¹ ÀçÇÏ °úÁ¤¿¡¼­ ¹ß»ýÇÏ´Â °úÀ×°£±Ø¼ö¾ÐÀº ¹Ýº¹ÀçÇÏÇÏÁß°ú ±¸¼Ó¾ÐÀÌ Áõ°¡ÇÒ¼ö·Ï Å©°Ô ³ªÅ¸³²À» È®ÀÎÇÏ¿´´Ù. ¿©±â¼­ ÀÌ µÎ °¡Áö ¿µÇâ¿ä¼Ò°¡ ¹Ý¿µµÈ ¼öÁ¤°úÀ×°£±Ø¼ö¾Ðºñ(MEPPR)¸¦ Á¦¾ÈÇÏ¿©, °úÀ×°£±Ø¼ö¾Ð °Åµ¿À» ¹Ýº¹ÀçÇÏȽ¼ö¸¸À¸·Î ³ªÅ¸³¾ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ °úÀ×°£±Ø¼ö¾ÐÀ» ±¸¼Ó¾ÐÀ¸·Î Á¤±ÔÈ­ÇÑ °úÀ×°£±Ø¼ö¾Ðºñ(EPPR)¸¦ ÀÌ¿ëÇÏ¿©, ±¸¼Ó¾ÐÀÇ Áõ°¡¿¡ µû¶ó °¨¼ÒÇÏ´Â °úÀ×°£±Ø¼ö¾Ð ¼Ò»ê ½Ã ºÎÇǺ¯Çü·üÀ» °£ÆíÈ÷ ³ªÅ¸³¾ ¼ö ÀÖ¾ú´Ù. °á·ÐÀûÀ¸·Î À缺Çü dzȭÅä¿¡ ´ëÇÏ¿© ¾ò¾îÁø ½Ç³» ½ÃÇè °á°ú¸¦ Åä´ë·Î ÁöÁø ÇÏÁß°ú °°Àº µ¿Àû ¹Ýº¹ ÀçÇÏ ½Ã ¹Ì¾×»óÈ­ Á¶°Ç¿¡¼­ ¹ß»ýÇϴ ħÇÏ·®À» ÀûÀº ¼öÀÇ ½ÇÇè °á°ú·Î °£ÆíÇÏ°Ô ¿¹ÃøÇÒ ¼ö ÀÖ´Â ¹æ¹ý ¹× °³³äÀ» µµÃâÇÏ¿´´Ù.
This paper deals with development and dissipation of excess pore pressure induced by the cyclic load. Cyclic triaxial tests on reconstituted samples of weathered residual soils, which were widely used as construction materials in Korea, were performed. Test results showed that excess pore pressures developed under undrained condition increased with the increase of cyclic loads and confining pressures. And a new concept based on modified excess pore pressure ratio (MEPPR) was proposed for simply estimating excess pore pressures in terms of the number of cyclic load, irrespective of cyclic loads and confining pressures. Also, it was proposed that excess pore pressure ratio (EPPR) could be effectively utilized to estimate volumetric strains during dissipation which decreased as confining pressures increased. Consequently, concept and method to effectively estimate settlements under non-liquefied condition, induced by dynamic loads such as earthquake loads were evaluated based on laboratory test results for reconstituted weathered residual soils.
 
Ű¿öµå
Cyclic triaxial test;Deformation characteristics;Excess pore pressure dissipation tests;Modified excess pore pressure ratio;Weathered soil;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.6, 2006³â, pp.41-49
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200633242257317)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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