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Çѱ¹Áö¹Ý°øÇÐȸ / v.3, no.4, 1987³â, pp.41-54
»ê»çÅ À§Çèµµ ÃßÁ¤À» À§ÇÑ ÁöÇϼöÀ§ º¯µ¿ÀÇ Ãß°è·ÐÀû ¼öÄ¡ ÇØ¼®
( A Stochastic Numerical Analysis of Groundwater Fluctuations in Hillside Slopes for Assessing Risk of Landslides )
ÀÌÀθð; Á¤È¸¿ø, Çѱ¹°úÇбâ¼ú¿ø, Åä¸ñ°øÇаú;
 
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º» ³í¹®¿¡¼­´Â ¹«ÇÑ»ç¸é¿¡¼­ °­¿ì¿¡ µû¸¥ ÁöÇϼöÀ§ º¯µ¿À» ÇÕ¸®ÀûÀ¸·Î ÃßÁ¤ÇÒ ¼ö ÀÖ´Â Ãß°è·ÐÀû ¼öÄ¡ÇØ¼®¸ðµ¨ÀÌ °³¹ßµÇ¾ú´Ù. ƯÈ÷, Åõ¼ö°è¼ö, ºñ»êÃâÀ²(Specific Yield) µîÀÇ ÁöÇϼöÈ帧¿¡ ÇÊ¿äÇÑ °è¼öµé°ú ÁöÇϾϹÝÃþÀÇ °ø°£Àû º¯È­¿¡ ÀÇÇÏ¿© ÁöÇϼöÀ§°¡ °ø°£ÀûÀ¸·Î º¯ÇÏ´Â È¿°ú¿¡ °üÇØ ÁßÁ¡ÀûÀ¸·Î ¿¬±¸ÇÏ¿´À¸¸ç, ÀÌ·¯ÇÑ °è¼öµéÀÇ °ø°£Àû º¯È­¸¦ ÃßÁ¤Çϱâ À§ÇÏ¿© Kriging ÀÌ·ÐÀ» µµÀÔÇÏ¿´´Ù. Kriging ÀÌ·ÐÀº ¸î°³ÀÇ Á¦ÇÑµÈ ½ÇÃøÄ¡·ÎºÎÅÍ ½ÇÃøÀ» ÇÏÁö ¸øÇÑ °¢°¢ÀÇ ¼öÄ¡ÇØ¼® ¿ä¼Ò¿¡ ºÒÆí, ÃÖ¼Ò ºÐ»êÀ» °®´Â °ªµéÀ» ÃßÁ¤ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀÌ´Ù. »ç¸é¹æÇâÀÇ ÀÏÂ÷¿ø ¼öÄ¡ÇØ¼® ¸ðµ¨, Kriging ÀÌ·Ð, 1Â÷±Ù»çÇØ¹ýÀ» Á¶ÇÕÇÏ¿© Ãß°è·ÐÀû 1Â÷¿ø ¼öÄ¡ÇØ¼® ÇÁ·Î±×·¥À» °³¹ßÇÏ¿´´Ù. ¶ÇÇÑ »ç¸é¹æÇâÀÇ ÁöÇϼöÀ§ º¯µ¿»Ó¸¸ ¾Æ´Ï¶ó, Ⱦ¹æÇâÀÇ º¯µ¿µµ Á¶»çÇϱâ À§ÇÏ¿© È®Á¤·ÐÀû 2Â÷¿ø ¸ðµ¨µµ °³¹ßÇÏ¿´´Ù. ÇÑ ¹«ÇÑ»ç¸é¿¡ ´ëÇÏ¿© °³¹ßµÈ ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ¿¹Á¦Çؼ®À» ÇÑ °á°ú Åõ¼ö°è¼ö³ª ºñ»êÃâÀ²ÀÇ °ø°£Àû º¯È­»Ó¸¸ ¾Æ´Ï¶ó ÁöÇϾϹÝÃþÀÇ °ø°£¿¡ µû¸¥ ¿äöµµ ÁöÇϼöÀ§ÀÇ °ø°£Àû º¯È­¿¡ Å« ¿µÇâÀ» ¹ÌħÀ» ¾Ë°Ô µÇ¾ú´Ù. ¶ÇÇÑ ÁöÇϼöÀ§´Â »ç¸é¹æÇâÀ¸·Î Å« º¯µ¿À» º¸ÀÏ»Ó ¾Æ´Ï¶ó Ⱦ¹æÇâÀ¸·ÎÀÇ º¯µ¿ ¶ÇÇÑ ¹«½ÃÇÒ ¼ö ¾øÀ» Á¤µµ·Î Å­À» ¾Ë ¼ö ÀÖ¾ú´Ù. °³¹ßµÈ ¸ðµ¨ÀÇ °á°úµéÀº ÁöÇϼöÀ§ º¯µ¿¿¡ ÀÇÇÑ »ê»çÅ À§ Çèµµ ºÐ¼®½Ã¿¡ ÀÌ¿ëµÉ ¼ö ÀÖ´Ù.
A stochastic numerical analysis for predicting the groundswater fluctuations in hillside slopes is performed in this paper to account for the uncertainties associated with the rainfall and site characteristics. The effect of spatial variabilities of aquifer parameters and the effect of temporal variability of recharge on the groundwater fluctuations are studied in depth. The Kriging is used to account for the spatial tariabilities of aquifer parameters. This technique prolevides the best linear unbiased estimator of a parameter and its minimum variance from a litsitem number of measured data. A stochastic one-dimensional numerical model is delreloped b) combining the groundwater flow model, the Kriging, and the first-order second-moment analysis. In addition, a two dimensional detelministic groundwater model is developed to study the change of ground water surfas in the transverse direction as well as in the downslope direction. It is revealed that the undulations of the impervious bedrock in addition to the permeability and the specific yield have an important influence on the fluctuations of the groundwater surface. It is also found that th'e groundwater changes significantly in the transverse direction as well as in the downslope direction. The results obtained in this analysis may be used for evaluation of landslide risks due to high porewater pressure.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.3, no.4, 1987³â, pp.41-54
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198711920443105)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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