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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.1, 1992³â, pp.81-102
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( Porewater Pressure Predictions on Hillside Slopes for Assessing Landslide Risks(I) -Comparative Study of Groundwater Recharge- ) |
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| ¾ãÀº ÅäÃþÀ» °¡Áö´Â °¡ÆÄ¸¥ »ê»ç¸é¿¡¼ ¹ß»ýÇÏ´Â »ê»çÅ´ ÈçÈ÷ È£¿ì, Æø¿ì, ÅÂdz µîÀÇ °¿ì »ç»ó ¹ß»ýÀ¸·Î ÃÊ·¡µÈ ÁöÇϼöÀ§ Áõ°¡°¡ ±× ¿øÀÎÀÌ µÇ¸ç, °á±¹ »ê»ç¸é¿¡¼ÀÇ ÁöÇϼöÀ§¸¦ ¿¹ÃøÇÏ´Â °ÍÀÌ »ê»çÅ ¹ß»ý À§Çèµµ¸¦ ÃßÁ¤Çϴµ¥ Áß¿äÇÑ ¿ä¼Ò°¡ µÈ´Ù. º» ´«¹®¿¡¼´Â »ê»ç¸é¿¡¼ ÁöÇϼö À¯ÀÔ·®À» ¿¹ÃøÇÒ ¼ö ÀÖ´Â ºñÆ÷È´ë È帧 ¸ðµ¨µé Áß Sloan µîÀÌ Á¦¾ÈÇÑ ¸ðµ¨, Reddi°¡ Á¦¾ÈÇÑ ¸ðµ¨, Thomas abcd ¸ðµ¨µéÀ» ¼±ÅÃÇÏ¿© ¼·Î ºñ±³ ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ¶ÇÇÑ, Æ÷ÈÅõ¼ö°è¼ö¿Í ¸ðµ¨º¯¼öµé¿¡ ´ëÇÏ¿© ¸Å°³º¯¼öºÐ¼® ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. Æ÷È´ë È帧¿¡ ´ëÇØ¼´Â SloanµîÀÌ °³¹ßÇÑ Kinematic Storage Model(KSM)À» ¼±ÅÃÇÏ¿© Çѱ¹ÀÇ »ê»ç¸é¿¡ ´ëÇÑ Àû¿ë °¡´É¼ºÀ» ¿¬±¸ÇÏ¿´´Ù. ÀÌµé ¸ðµ¨µéÀº Çѱ¹ÀÇ µÎ »ê»çÅ ¹ß»ý Áö ¿ª¿¡ Àû¿ëÇÏ¿´°í, ±× Àû¿ë °¡´É¼º ¿¡ ´ëÇÑ ¿¬±¸°¡ ÀÌ·ç¾î Á³´Ù. ±× °á°ú, Sloan µî°ú Reddi°¡ Á¦¾ÈÇÑ µÎ ¸ðµ¨µéÀº Æ÷ÈÅõ¼ö°è¼ö¿Í °°Àº ºÒÈ®½Ç¼ºÀ» Áö´Ñ ½ÇÇè »ó¼öµéÀÇ ¿µÇâÀ» ¸¹ÀÌ ¹ÞÀ¸¸ç, abcd¸ðµ¨Àº ÁöÇϼöÀ§ º¯µ¿¿¡ ´ëÇÏ¿© °í·ÁÇÒ ¼ö ÀÖµµ·Ï ¼öÁ¤Çϰí ÀûÀýÇÑ ÃÖÀûÈ ±â¹ýÀ» »ç¿ëÇÏ¿© ¸ðµ¨º¯¼öµéÀ» ±¸ÇÑ´Ù¸é, ºñÆ÷È´ë ¸ðµ¨·Î¼ ÇöÀå Áö¿ª¿¡ Àû¿ë °¡´ÉÇÏ´Ù´Â °á·ÐÀ» ¾ò¾ú´Ù. ¶ÇÇÑ, KSMÀº Æ÷È´ë¿¡¼ÀÇ ½Ã°£ Áöü È¿°ú¸¦ °í·ÁÇØ ÁÙ ¼ö ÀÖµµ·Ï ¼öÁ¤µÇ¾î¾ß ÇÑ´Ù´Â °á·ÐÀ» ¾ò¾ú´Ù. º» ³í¹®ÀÇ °á°ú´Â °¡ÆÄ¸¥ »ê»ç¸é ¿¡¼ÀÇ »ê»çÅ ¹ß»ý À§Çèµµ¸¦ ÃßÁ¤Çϱâ À§ÇÑ ÁöÇϼöÀ§ ¿¹Ãø ¸ðµ¨ À» °³¹ßÇÏ´Â µ¥ ÀÌ¿ëÇÒ ¼ö ÀÖ´Ù. |
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| Landslides on hillside slopes with shallow soil cover over a sloping bedrock are frequently caused by increases in porewater pressures following of heavy rainfall and it is one of the most important factors of assessing the risk of landslide to predict the groundwater level fluctuations in hillslopes. This paper presents the comparative study of three unsaturated flow models developed by Sloan et al., Reddi, L.N., and Thomas, H.A., Jr., respectively, which are used to predict the increase of groundwater levels in hillside slopes. The parametric study for each of models is also presented. The Kinematic Storage Model(KSM) developed by Sloan et at. is utilized to predict the saturated groundwater flow. They are applied to the two sites in Korea so as to examine the possibility of use in the groundwater flow model. The results show that two unsaturated models developed by Sloan et al. and Reddi, L. N. are largely affected by the uncertain parameters like saturated permeability and saturated water content : the abed model has the potential of use in unsaturated flow model with the optimal estimates of model parameters utilizing available optimization techniques. And it is also found that the KSM must be modified to account for the time delay effect in the saturated zone. The results of this paper are able to be utilized in developing the predictive model of groan dwater level fluctuations in a hillslope. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.1, 1992³â, pp.81-102
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444494)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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