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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.3, 1999³â, pp.27-40
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( Slope Failure Surface Using Finite Element Method ) |
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| »ç¸é¾ÈÁ¤Çؼ®À» ¼öÇàÇϱâ À§ÇÏ¿© ¸¹ÀÌ »ç¿ëÇÏ´Â ÇѰèÆòÇü¹æ¹ýÀº ÀÏÁ¤ÇÑ °¡Á¤À» ÇÏ¿© ¾ÈÀüÀ²À» ÆòÇü¿¡ ÇÊ¿äÇÑ ÀÀ·Â°ú ÈëÀÇ Àü´Ü°µµÀÇ ºñ·Î Á¤ÀÇÇÏ¿© ´ë»ó»ç¸éÀÇ ¾ÈÀüÀ²À» ±¸ÇÑ´Ù. À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÑ »ç¸é¾ÈÁ¤Çؼ®¹æ¹ýÀº ÀÀ·Â»óŸ¦ À¯ÇÑ¿ä¼Ò¹ýÀ¸·Î ±¸ÇÑ ÈÄ ¿øÈ£³ª ´ë¼ö³ª¼±ÇüµîÀÇ ÀÏÁ¤ÇÑ ¸ð¾çÀÇ »ç¸é ÆÄ±«¼±À» °¡Á¤ÇÏ¿© ¹Ýº¹ÀûÀ¸·Î ÃÖ¼Ò¾ÈÀüÀ²À» ±¸ÇÑ´Ù. º» ¿¬±¸¿¡¼´Â À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÑ »ç¸é¾ÈÁ¤Çؼ®¹æ¹ýÀ» °³¹ßÇÏ¿© »ç¸éÀÇ °¡Àå Ãë¾àÇÑ ºÎºÐÀ» µû¶ó ÆÄ±«¼±ÀÌ ¹ß»ýÇϵµ·Ï ÇÏ¿´´Ù. À̰ÍÀº ¿ä¼Ò³»ÀÇ ±¹ºÎ¾ÈÀüÀ²°ú ÆÄ±«°¢À» °í·ÁÇÏ¿© »ç¸éÆÄ±«¼±À» ÀÚµ¿ÀûÀ¸·Î ±¸ÇÒ ¼ö ÀÖµµ·Ï ÇÔÀ¸·Î½á °¡´ÉÇѵ¥ ÀÌ ¹æ¹ýÀº ÀÓÀÇÀÇ ÆÄ±«¼±À» °¡Á¤ÇÒ Çʿ䰡 ¾øÀ¸¸ç ÀýÆí¿¡ ÀÛ¿ëÇÏ´Â Èû¿¡ ´ëÇÏ¿© °¡Á¤À» ÇÒ Çʿ䰡 ¾ø°í ÀÓÀÇÀÇ ¸ð¾çÀÇ ÆÄ±«¼±À» ±¸ÇÒ ¼ö ÀÖ´Â ÀåÁ¡ÀÌ ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â °³¹ßµÈ ÇØ¼®¹æ¹ýÀ» °ËÁõÇϱâ À§ÇÏ¿© °¡»óÀÇ »ç¸é, ÀÚ¿¬»ç¸é, ±×¸®°í ´ï»ç¸é¿¡ Àû¿ëÇÏ¿© ½Ç¹«¿¡¼ ¸¹ÀÌ »ç¿ëÇÏ´Â ÇѰèÆòÇü¹æ¹ý ÇÁ·Î±×·¥ÀÎ STABL5M°ú SLOPE/W°ú ºñ±³ Æò°¡ÇÏ¿´´Ù. |
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| In limit equilibrium methods(LEM), all methods employ the same definition of the safety factor as a ratio of the shear strength of the soil to the shear stress required for equilibrium, employing certain assumptions with regard to equilibrium. In addition, in the conventional finite element method of analysis, the minimum safety factor is obtained assuming certain slip surfaces after the state of stress are found. Although the stress states are obtained from the finite element method(FEM), the slope stability analysis follows the conventional method that assumes a potential slip surface. In this study, a slope stability analysis based on FEM is developed to locate the slip surface by tracking the weakest points in the slope based on the local safety factor considering the magnitude and direction of the shear stresses. It has also been applied to be compared with the slip surfaces predicted by LEM. A computer program has been developed to draw contour lines of the local safety factors automatically. This method is illustrated through a simple hypothetical slope, a natural soil slope, and a dam slope. The developed method matches very well with the conventional LEM methods, with slightly lower global safety factors. |
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| Ű¿öµå |
| Slope stability;FEM;Local safety factor;Slip surface;Element equation; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.3, 1999³â, pp.27-40
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749178)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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