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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.6, 1998³â, pp.33-44
ÁöÇ¥¼ö ħÅõ¿Í õºÎ »ç¸éÆÄ±«¿ÍÀÇ °ü°è¿¡ °üÇÑ ±âÃÊ¿¬±¸
( Preliminary Study on the Co-relation between the Water Infiltration and the Shallow Slope Failure )
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º» ¿¬±¸´Â ¿ì±â¿¡ ÈçÈ÷ ¹ß»ýµÇ´Â õºÎ »ç¸éÆÄ±«¿Í ÁöÇ¥¼ö ħÅõ¿ÍÀÇ °ü°è¸¦ ±Ô¸íÇϱâ À§ÇÑ ±âÃÊ¿¬±¸·Î¼­ ¼öÇàµÇ¾ú´Ù. »ç¸éÀÌ Ä§Åõ¼ö¿¡ ÀÇÇÏ¿© ºÎºÐÀûÀ¸·Î Æ÷È­µÇ¾úÀ» °æ¿ì¿¡ Åä¾ç¿¡ ÀÛ¿ëÇÏ´Â ÀÀ·ÂÀÇ º¯È­¸¦ °íÂûÇϰí ÀÌ¿Í °ü·ÃµÈ »ç¸éÀÇ Àü´Ü°­µµ À̷п¡ ´ëÇÏ¿© ³íÀÇÇÏ¿´´Ù. ±×¸®°í ÀÓÀÇÀÇ ¹«ÇÑ Æò¸é»ç¸é¿¡ ÇѰèÆòÇü¹ýÀ» Àû¿ëÇÏ¿© ÁöÇ¥¼ö ħÅõ°¡ »ç¸éÀÇ ¾ÈÁ¤¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ ÇѰèÆòÇü ÇØ¼®¿¡¼­ »ç¿ëÇÑ ÀϺΠ¸ðµ¨°ú µ¿ÀÏÇÑ Á¶°ÇÇÏ¿¡¼­ À¯ÇÑÂ÷ºÐ¹ý ÇÁ·Î±×·¥ÀÎ FLACÀ» ÀÌ¿ëÇÏ¿© ¼öÄ¡ÇØ¼®À» ½Ç½ÃÇÏ°í ±× °á°ú¸¦ ÇѰèÆòÇü ÇØ¼®¿¡¼­ ±¸ÇÑ °á°ú¿Í ºñ±³Çغ½À¸·Î½á ÁöÇ¥¼öħÅõ¿Í »ç¸éÀÇ ¾ÈÁ¤¼º ¹®Á¦¿¡ °üÇÑ ¼öÄ¡ÇØ¼®Àû Á¢±Ù °¡´É¼ºÀ» °ËÅäÇÏ¿´´Ù. º» ¿¬±¸´Â ´Ü¼ø »ç¸é¿¡ ´ëÇÑ ÇØ¼®°á°úÀ̹ǷΠº¸´Ù ÀϹÝÀûÀÎ »ç¸é¿¡ Àû¿ëÇϱâ À§Çؼ­´Â ´õ¿í ³ªÀº ¿¬±¸°¡ ¼öÇàµÇ¾î¾ß ÇÒ °ÍÀÌ´Ù.
Preliminary study has been conducted to analyse the co-relation between shallow landslides frequently occurring in rainy seasons and the water infiltration into the slope. The change of stress state due to partial saturation of a soil and hence the reduction of its shear strength have been reviewed. The variation of the safety factor of an infinite planar slope in accordance with various water infiltration scenarios has been estimated by limit equilibrium method to explain the mechanism of shallow slope failure. Numerical analysis under the same condition as those of some models dealt with in the previous method has been carried out by using FLAC, a finite difference program, and the results have been compared with the ones obtained by limit equilibrium method. Both results proved to be identical, which implies the ability of the numerical approach to the problems related to the stability analysis of unsaturated slope with the irregular geometry. Further improvement, however, should be made to apply the present analysis procedure to general slopes since it deals with a simple one.
 
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Slope stability;Water infiltration;Unsaturated soil;Matric suction;Pore-pressure;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.6, 1998³â, pp.33-44
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811921757664)
¾ð¾î : Çѱ¹¾î
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