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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.8, 2006³â, pp.55-62
Á¡ÅäÁö¹Ý »÷µå¸ÅÆ®ÀÇ °£±Ø¼ö¾Ð °Åµ¿
( Behaviour of the Excess Pore Pressure Induced by Sand Mat on the Soft Clay )
±èÇüÁÖ;À̹μ±;¹éÇʼø;ÀüÇý¼±; ±º»ê´ëÇб³ Åä¸ñȯ°æ°øÇкÎ;±º»ê´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;±º»ê´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;±º»ê´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
 
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»÷µå¸ÅÆ®ÀÇ ¼³°è´Â ¿¬¾àÁö¹ÝÀÇ ¾Ð¹ÐħÇÏÆ¯¼º°ú ¸ÅÆ®ÀÇ Åõ¼ö¼ºÀÌ »óÈ£ °áÇÕµÈ ¿¬¼º¾Ð¹ÐÇØ¼®¿¡ ÀÇÇØ ¾ò¾îÁö´Â °£±Ø ¼ö¾Ð°Åµ¿¿¡ ÀÇÇØ °ËÅäµÇ¾î¾ß ÇÑ´Ù. º» ¿¬±¸¿¡¼­´Â »÷µå¸ÅÆ®ÀÇ ¼öµÎºÐÆ÷¿¡ ´ëÇÏ¿© Terzaghi 1Â÷¿ø ¾Ð¹Ð¹æÁ¤½ÄÀ» ÀÌ¿ëÇÑ ¼öÄ¡ÇØ¼®À» ½Ç½ÃÇÏ¿© Áؼ³¸ð·¡¸¦ »÷µå¸ÅÆ® Àç·á·Î ÀÌ¿ëÇÑ ¼ºÅä¸ðÇü½ÇÇèÀÇ °á°ú¿Í ºñ±³ºÐ¼®ÇÏ¿´´Ù. ½ÇÇè°á°ú ´Ü°è ¼ºÅä°¡ Áõ°¡Çϸ鼭 °£±Ø¼ö¾ÐÀº ¼ºÅäÁ߽ɺο¡¼­ Áõ°¡µÇ´Â ħÇÏ·®ÀÇ ¿µÇâÀ» ¹Þ°í ÀÖ´Ù. ±×¸®°í ÀÜ·ùµÈ °£±Ø¼ö¾Ð ¿µÇâÀ¸·Î °£±Ø¼ö¾ÐÀÇ »ó½Â¼Óµµ°¡ ¼öÄ¡ÇØ¼®°á°úº¸´Ù Áö¿¬µÇ°í ÀÖ´Ù. µû¶ó¼­ ÃÖÁ¾ÀûÀ¸·Î »÷µå¸ÅÆ® ½Ã°øÀº ¼ºÅäÁ߽ɺο¡¼­ Áõ°¡µÇ´Â µ¿¼ö±¸¹è¸¦ Àú°¨½Ã۵µ·Ï Æ÷¼³µÇ¾î¾ß ÇÑ´Ù.
The design of sand mat should be reviewed by the behaviour of excess pore pressure which is obtained by combining characteristics of soft ground with the permeability of sand mat. In this paper, in order to investigate the distribution of hydraulic gradient of sand mat, a banking model test was performed using dredged sand as materials of sand mat, and these results were compared by the numerical analysis results utilizing Terzaghi's consolidation equation. The results show that the pore pressure was influenced by the settlement increasing in the central area of sand mat as the height of embankment increases, and uprising speed of excess pore pressure due to residing water pressure is delayed compared with the results of numerical analysis. Finally, the construction of sand mat should be spreaded to reduce the increased hydraulic gradient at the central area of embankment.
 
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Banking model test permeability;Hydraulic gradient;Sand mat;Settlement;Soft ground;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.8, 2006³â, pp.55-62
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634741580416)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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