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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.10, 2006³â, pp.93-100
¼ºÅäÇϺΠ¿¬¾àÁö¹ÝÀÇ Ãø¹æÀ¯µ¿ Æò°¡
( Evaluation of Lateral Flow in Soft Ground under Embankment )
È«¿øÇ¥;Á¶»ï´ö;ÀÌÀçÈ£;À̱¤¿ì; Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ±¹ÅäÁö¹Ý¿¬±¸ºÎ;Áß¾Ó´ëÇб³ ±â¼ú°úÇבּ¸¼Ò;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ±¹ÅäÁö¹Ý¿¬±¸ºÎ;
 
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¿¬Á÷¹è¼ö°ø¹ýÀÌ Àû¿ëµÈ ¿¬¾àÁö¹Ý »ó ¼ºÅä ½Ã ¹ß»ýÇÒ ¼ö ÀÖ´Â Áö¹ÝÀÇ Ãø¹æÀ¯µ¿¿¡ ´ëÇÑ Æò°¡±â¹ýÀ» ¸¶·ÃÇϱâ À§ÇÏ¿©, ¼¼ °³ ÇöÀåÀÇ 56°³ ÁöÁ¡¿¡¼­ ¼öÇàÇÑ ÇöÀå°èÃø ÀڷḦ ºÐ¼®ÇÏ¿´´Ù. °èÃø°á°ú ºÐ¼®À» ÅëÇØ Áö¹ÝÀÇ Ãø¹æÀ¯µ¿ °¡´É¼º¿¡ ´ëÇÑ Æò°¡ ¹æ¾ÈÀÌ ¸¶·ÃµÇ¾ú´Ù. ¹«Ã³¸® ¿¬¾àÁö¹Ý¿¡ ´ëÇÏ¿© Marche & Chapuis(1974)°¡ Á¦¾ÈÇÑ ¹«Â÷¿ø°è¼ö RÀ» ¿¬Á÷¹è¼ö °ø¹ýÀ¸·Î °³·®µÈ ¿¬¾àÁö¹Ý¿¡ Àû¿ëÇϱâ À§Çؼ­´Â ¼ºÅäü ¼±´ÜºÎ Á÷ÇÏÀÇ ÃÖ´ëÁöÁß¼öÆòº¯À§¸¦ Ȱ¿ëÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷Çϰí, ¿¬¾àÁö¹Ý µÎ²²¿Í ¼ºÅ䯸ÀÇ ºñ(H/B)°¡ $0.05 {sim}1.15$ÀÎ °æ¿ì, »ç¸é¾ÈÀüÀ²ÀÌ $1.2{sim}1.4$À̸é Áö¹ÝÀÇ Ãø¹æº¯À§·®ÀÌ ±Þ°ÝÈ÷ Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ÃÖ´ë·Î ¼ºÅäÇÒ ¼ö ÀÖ´Â ³ôÀÌ¿Í ºñ¹è¼öÀü´Ü°­µµÀÇ °ü°è¸¦ ³ªÅ¸³½ Tschebotarioff(1973)ÀÇ ¹æ¹ýÀ» ÀÌ¿ëÇϸé, ¿¬¾àÁö¹ÝÀÇ Ãø¹æÀ¯µ¿ °¡´É¼ºÀ» °£ÆíÇÏ°Ô Æò°¡ÇÒ ¼ö ÀÖ´Ù.
The lateral soil movement in soft grounds undergoing improvement with application of vertical drains is analyzed on the basis of monitoring data at three fields, in which fifty six monitoring sites are located. Based on the investigations, the criterions are suggested to predict the lateral soil movement. In order to predict the lateral soil movement in the improved soft grounds by using the dimensionless parameter R suggested by Marche & Chapuis (1974), it is desirable that the maximum lateral displacement in the soft ground below the toe of embankment should be applied to calculate R instead of the lateral displacement at the toe of embankment. The lateral soil movement may increase rapidly, if the safety factor of slope is less than 1.4 in case of high ratio of H/B (Thickness of soft ground/Embankment width) such as 1.15 or is less than 1.2 in case of low ratio of H/B such as 0.05. Also, the graph suggested by Tschebotarioff (1973), which illustrates the relationship between the maximum height of embankments and the undrained shear strength of soft grounds, can be applied to the evaluation for the possibility of the lateral soil movement due to embankments on soft grounds.
 
Ű¿öµå
Dimensionless parameter R;Embankment on soft ground;Field monitoring;Lateral soil movement;Soft ground;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.10, 2006³â, pp.93-100
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623521159)
¾ð¾î : Çѱ¹¾î
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