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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.9, 2005³â, pp.77-86
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( Stability Analysis of the Concave Zone in a Slope Considering Rainfall ) |
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| ÁýÁß°¿ì·Î ÀÎÇÑ Ã¶µµ¿¬º¯ »ç¸éÀÇ È°µ¿ ¹× ¼±·ÎÀÇ À¯½ÇÀº öµµ ¿îÇà¿¡ ÀÖ¾î ºÒ¾ÈÁ¤¼ºÀ» À¯¹ßÇÏ´Â ¿äÀÎÀ¸·Î¼ ÀÌ¿¡ ´ëÇÑ ÀûÀýÇÑ Æò°¡±â¹ýÀÌ ¿ä±¸µÈ´Ù. ÇöÀåÁ¶»ç °á°ú °¿ì·Î ÀÎÇÑ »ç¸éÀÇ È°µ¿Àº »ç¸é³» ÈëÀÇ Æ¯¼º, °¿ì°µµ, »ç¸éÀÇ 3Â÷¿ø»ó Çü»ó°ú ÁöÃþÀÇ ÁöÁúÇÐÀû Á¶°Ç°ú »ó°üÀÌ ÀÖ´Â °ÍÀ¸·Î °üÃøµÇ¾ú´Ù. º» ¿¬±¸¿¡¼´Â »ç¸éÀÇ È°µ¿ÆÐÅÏ Áß »ç¸é³» ¿äºÎ¿¡¼ ÁÖº¯ ¼ö°è·ÎºÎÅÍ Èê·¯ µé¾î¿Â Ç¥¸éÀ¯Ãâ¼ö·Î ÀÎÇÏ¿© ¹ß»ýÇÏ´Â »ç¸éÀÇ È°µ¿À» ´ë»óÀ¸·Î Çϰí ÀÖ´Ù. Ç¥¸éÀ¯Ãâ¼öÀÇ ¹ß»ýÀº Philip °ø½Ä¿¡¼ °è»êµÈ ħÅõÀ²°ú °¿ì°µµÀÇ ºñ±³¸¦ ÅëÇØ¼ ÆÇÁ¤µÇ¾ú´Ù. Ç¥¸éÀ¯Ãâ¼öÀÇ ½Éµµ¸¦ °è»êÇϱâ À§ÇÏ¿© ÇÕ¸®½Ä°ú Manning °ø½ÄÀ» Àû¿ëÇÏ¿´À¸¸ç, ½Éµµº° »ç¸éÀÇ ¾ÈÀüÀ²À» ±¸Çϱâ À§ÇÏ¿© Iverson ¸ðÅÚÀ» ¼öÁ¤ÇÏ¿© Àû¿ëÇÏ¿´´Ù. ¼öÁ¤µÈ Iverson ¸ðµ¨ÀÇ Àû¿ë¿¡ ÀÖ¾î Ç¥¸é À¯Ãâ¼öÀÇ ½Éµµ¸¦ °í·ÁÇϹǷΠÃÖ´ë µ¿¼ö°æ»ç°¡ 1 ÀÌ»óÀÇ °æ¿ì¸¦ °í·ÁÇÏ¿´´Ù. |
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| Since slope sliding and loss of railway triggered by a rainfall produce instability in the operation of trains, a proper method to estimate the slope stability considering rainfall Is required. from the field study, sliding induced by rainfall depends on the engineering properties of soils, three dimensional aspect of the slope, rainfall intensity and geological conditions of the soil layers. In this study, among various types of sliding, slope Instability caused by the surface runoff water at the concave zones in a slope is investigated. The depth of runoff water is calculated by using the Rational method and Manning equation. The occurrence of runoff water is evaluated by a comparison between the calculated infiltration rate and rainfall intensity. Pressure heads which can be calculated from the modified Iverson model are used to calculate the factor of safety along the vertical depth of the slope. The modified Iverson model considers the depth of runoff water, thus the maximum hydraulic gradient along the depth of slope is greater than one. |
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| Ű¿öµå |
| Iverson model;Manning equation;Rainfall;Slope;Watershed; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.9, 2005³â, pp.77-86
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200508824125648)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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