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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.2, 1992³â, pp.5-20
»ê»çÅ À§Çèµµ ÃßÁ¤À» À§ÇÑ °£±Ø¼ö¾Ð ¿¹Ãø¿¡ °üÇÑ ¿¬±¸(II) -»ê»ç¸é¿¡¼­ÀÇ ÁöÇϼöÀ§ ¿¹Ãø ¸ðµ¨ÀÇ °³¹ß-
( Porewater Pressure Predictions on Hillside Slopes for Assessing Landslide Risks (II) Development of Groundwater Flow Model )
ÀÌÀθð;¹Ú°æÈ£;ÀÓÃæ¸ð; °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;°í·Á´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú ¼®»ç°úÁ¤¼ö·á, ¸ñÆ÷Àü¹®´ëÇÐ Åä¸ñ°ú;;
 
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The physical-based and lumped-parameter hydrologic groundwater flow model for predicting the rainfall-triggered rise of groundwater levels in hillside slopes is developed in this paper to assess the risk of landslides. The developed model consists of a vertical infiltration model for unsaturated zone linked to a linear storage reservoir model(LSRM) for saturated zone. The groundwater flow model has uncertain constants like soil depttL slope angle, saturated permeability, and potential evapotranspiration and four free model parameters like a, b, c, and K. The free model parameters could be estimated from known input-output records. The BARD algorithm is uses as the parameter estimation technique which is based on a linearization of the proposed model by Gauss -Newton method and Taylor series expansion. The application to examine the capacity of prediction shows that the developed model has a potential of use in forecast systems of predicting landslides and that the optimal estimate of potential 'a' in infiltration model is the most important in the global optimum analysis because small variation of it results in the large change of the objective function, the sum of squares of deviations of the observed and computed groundwater levels. º» ³í¹®¿¡¼­´Â °¡ÆÄ¸¥ »ê»ç¸é¿¡¼­ »ê»çÅÂÀÇ ¹ß»ýÀ» ¿¹ÃøÇϱâ À§ÇÑ ¼ö¹®ÇÐÀû ÀÎ ÁöÇϼö È帧 ¸ðµ¨À» °³¹ßÇÏ¿´´Ù. ÀÌ ¸ðµ¨Àº ¹°¸®ÀûÀÎ °³³ä¿¡ ±âº»ÇÏ¿´À¸¸ç, Lumped-parameter¸¦ ÀÌ¿ëÇÏ¿´´Ù. °³¹ßµÈ ÁöÇϼö È帧 ¸ðµ¨Àº µÎ ¸ðµ¨À» Á¶ÇÕÇÏ¿© ±¸¼ºµÇ¾î ÀÖÀ¸¸ç, ºñÆ÷È­´ë È帧À» À§Çؼ­´Â ¼öÁ¤µÈ abcd ¸ðµ¨À», Æ÷È­´ë È帧¿¡ ´ëÇØ¼­´Â ½Ã°£ Áöü È¿°ú¸¦ °í·ÁÇÒ ¼ö ÀÖ´Â ¼±Çü Àú¼öÁö ¸ðµ¨À» ÀÌ¿ëÇÏ¿´´Ù. ÁöÇϼö È帧 ¸ðµ¨Àº ÅäÃþÀÇ µÎ²², »ê»ç¸éÀÇ °æ»ç°¢, Æ÷È­Åõ¼ö°è¼ö, ÀáÀç Áõ¹ß»ê ·®°ú °°Àº ºÒÈ®½ÇÇÑ »ó¼öµé°ú a, b, c, ±×¸®°í K¿Í °°Àº ÀÚÀ¯¸ðµ¨º¯¼öµéÀ» °¡Áø´Ù. ÀÚÀ¯¸ðµ¨º¯¼öµéÀº À¯ÀÔ-À¯Ãâ ÀÚ·áµé·ÎºÎÅÍ Æò°¡ÇÒ ¼ö ÀÖÀ¸¸ç, À̸¦ À§Çؼ­ º» ³í¹®¿¡¼­´Â Gauss-Newton ¹æ¹ýÀ» ÀÌ¿ëÇÑ Bard ¾Ë°í¸®ÁòÀ» »ç¿ëÇÏ¿´´Ù. ¼­¿ï ±¸·Î±¸ ½ÃÈﵿ »ê»çÅ ¹ß»ý Áö¿ªÀÇ »ê»ç¸é¿¡ ´ëÇÏ¿© °³¹ßµÈ ¸ðµ¨À» Àû¿ëÇÏ¿© ¿¹Á¦ ÇØ¼®À» ¼öÇàÇÔÀ¸·Î½á, ÁöÇϼö È帧 ¸ðµ¨ÀÌ »ê»çÅ ¹ß»ý ¿¹ÃøÀ» À§ÇÏ¿© ÀÌ¿ëÇÒ ¼ö ÀÖÀ½À» ÀÔÁõÇÏ¿´´Ù. ¶ÇÇÑ, ¸Å°³º¯¼öºÐ¼® ¿¬±¸¸¦ ÅëÇÏ¿©, º¯¼ö a°ªÀº ÀÛÀº º¯È­¿¡ ´ëÇÏ¿© ¸ñÀûÇÔ¼ö°ª¿¡ Å« º¯È­¸¦ ÀÏÀ¸Å°¹Ç·Î aÀÇ °ª¿¡ ´ëÇÑ ÃÖÀû°ªÀ» ±¸ÇÏ´Â °ÍÀÌ °¡Àå Áß¿äÇÑ ¿ä¼Ò¶ó´Â °á·ÐÀ» ¾ò¾ú´Ù.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.2, 1992³â, pp.5-20
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444529)
¾ð¾î : Çѱ¹¾î
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