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Çѱ¹Áö¹Ý°øÇÐȸ / v.17, no.6, 2001³â, pp.123-133
È­°­Ç³È­Åä Áö¹ÝÀÇ ºÒÆ÷È­ Ư¼ºÀ» °í·ÁÇÑ ÃÖÀûÈ­±â¹ý¿¡ ÀÇÇÑ »ç¸é¾ÈÁ¤Çؼ® ¹æ¹ý
( Slope Stability Analysis by Optimization Technique Considering Unsaturated Characteristics of Weathered Granite Soil )
À̽·¡;À̼ºÁø;º¯À§¿ë;Àå¹ü¼ö; Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;½Ã¼³¾ÈÀü±â¼ú°ø´Ü ±â¼ú°³¹ßÁö¿ø½Ç;
 
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´ëºÎºÐÀÇ Åä»ç»ç¸éÀº ºÒÆ÷È­»óÅ·μ­, ÀÌ °æ¿ì ±âÁ¸ÀÇ ¸ð°üÈí¼ö·ÂÀ» ¹«½ÃÇÑ ÇØ¼®¿¡ ºñÇØ º¸´Ù ÇÕ¸®ÀûÀÎ °á°ú¸¦ ¾òÀ» ¼ö ÀÖµµ·Ï ´ë»ó »ç¸éÁö¹ÝÀÇ ºÒÆ÷È­ Ư¼ºÀ» °í·ÁÇÒ Çʿ䰡 ÀÖ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â Áö¹ÝÀÇ ºÒÆ÷È­ Ư¼ºÀ» °í·ÁÇÒ ¼ö ÀÖµµ·Ï ÇѰèÆòÇü¹ý¿¡ ÀÇÇÑ »ç¸é¾ÈÁ¤Çؼ® ÇÁ·Î±×·¥À» º¸¿ÏÇÏ¿© ÀÛ¼ºÇÏ¿´À¸¸ç ÀÓ°è´Ü¸é Ž»öÀ» À§ÇÏ¿© ÃÖÀûÈ­ ±â¹ýÀ» Àû¿ëÇÏ¿´´Ù. ±×¸®°í ÀÌ¿Í °°Àº ÇØ¼®À» À§ÇÑ ºÒÆ÷È­ ¼³°èº¯¼ö¸¦ ¾ò±â À§ÇØ ±¹³»ÀÇ ´ëÇ¥Àû Áö¹Ý Àç·áÀÎ È­°­Ç³È­Åä¿¡ ´ëÇØ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÇÇèÀÚ·á ºÐ¼®°á°ú ºÒÆ÷È­ °­µµÆ¯¼ºÀ» ¾ÈÁ¤Çؼ®¿¡ Àû¿ëÇϱâ À§ÇØ ¸ð°üÈí¼ö·Â¿¡ µû¸¥ °Ñº¸±â Á¡Å¹·Â º¯È­¸¦ ºñ¼±Çü¼ºÀ» °í·ÁÇÏ¿© ¼ö½ÄÈ­ÇÏ¿´´Ù. ¶ÇÇÑ ºÎÇǺ¯È­¸¦ ÃøÁ¤ÇÔÀ¸·Î½á ÇÔ¼öƯ¼º°î¼±À» º¸´Ù Á¤È®ÇÏ°Ô ¾ò°íÀÚ ÇÏ¿´´Ù. º» ¿¬±¸ °á°ú¸¦ ÅëÇØ °­¿ì¿¡ ÀÇÇÑ Ä§Åõ·Î ¾ß±âµÇ´Â »ç¸é³»ºÎÀÇ ¸ð°üÈí¼ö·ÂÀÇ º¯È­¿Í ±×¿¡ µû¸¥ Åõ¼öƯ¼º ¹× °­µµÆ¯¼ºº¯È­¸¦ °í·ÁÇÔÀ¸·Î½á °­¿ì°­µµ¿Í Áö¼Ó½Ã°£¿¡ µû¸¥ ¾ÈÀüÀ² º¯È­¸¦ º¸´Ù ÀûÀýÈ÷ ÆÇ´ÜÇÒ ¼ö ÀÖ¾ú´Ù.
Since most of soil slopes are in an unsaturated state, it is necessary to consider the unsaturated characteristics of soil slopes, in order to obtain more reasonable results. Therefore in this study we supplemented a slope stability analysis program to consider them, based on the concept of limit equilibrium. We also applied an optimization technique to search for a failure surface. Besides, we carried out experiments to obtain the unsaturated soil properties required in the analysis with weathered granite soils. We formulated a nonlinear apparent cohesion relationship with the matrix suction to be able to apply the unsaturated shear strength characteristics to the stability analysis. In addition, we intended to obtain more accurate soil water characteristic curves(SWCC) by measuring the change in volume of the specimen in the SWCC tests. As a result, we could appropriately assess the change of the safety factor according to the rainfall intensity and duration, by considering the variation of suction, permeability, and shear strength caused by the infiltration of rainfall into slopes.
 
Ű¿öµå
Limit equilibrium;Optimization technique;Shear strength;Slope stability;Soil water characteristic curve;Unsaturated soil;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.17, no.6, 2001³â, pp.123-133
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920879547)
¾ð¾î : Çѱ¹¾î
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