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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.5, 1999³â, pp.259-279
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±¼Âø¸ðÇü½ÇÇèÀ» ÅëÇÑ Åä·ùº®Ã¼ ¹× Áö¹Ý°Åµ¿¿¡ °üÇÑ ¿¬±¸
( Model Tests for The Behavior of Propped Retaining Walls in Sand ) |
| À̺À¿;±èÇй®; ´Ü±¹´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;´Ü±¹´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| º» ¿¬±¸¿¡¼´Â ´Ù´Ü°è ±¼Âø½Ã ¿¬¼ºÅä·ù º®Ã¼ÀÇ ¼öÆòº¯Çü, ±¼Âø´Ü°èº° Åä¾Ðº¯È ¹× ºÐÆ÷, ±×¸®°í ¹è¸éÁö¹ÝÀÇ ÁöǥħÇÏ¿Í ÁöÁߺ¯À§ÀÇ ºÐÆ÷¸¦ ±Ô¸íÇϱâ À§ÇÏ¿© º®Ã¼°¼º, º®¸¶ÂûÀÇ À¯¹« ¹× Áö¹ÝÁ¶°Ç¿¡ ´ëÇÏ¿© ±¼Âø¸ðÇü½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ¸ðÇü½ÇÇè °á°ú º®Ã¼°¼º ¹× º®Ã¼¿Í ¹è¸éÁö¹ÝÀÇ º®¸¶Âû°¢¿¡ À¯¹«¿¡ µû¸¥ ÁöǥħÇÏ ÇüÅ´ ´Ù¼Ò Â÷À̸¦ ³ªÅ¸³»¾úÀ¸¸ç, ÁöÁߺ¯À§ °á°ú´Â ÃÖ´ëÁöÁߺ¯À§ÀÇ ¹ß»ý½Éµµ´Â ½Éµµºñ 0.1H¿¡¼ 0.15H(H´Â ÃÖÁ¾±¼Âø½Éµµ)ÀÇ ¹üÀ§¿¡¼ ³ªÅ¸³µ´Ù. ±×¸®°í º®Ã¼ÀÇ °¼º¿¡ µû¶ó ¹è¸éÁö¹ÝÀÇ Åä¾ÐÀçºÐ¹è Çö»óÀÎ ¾ÆÄªÈ¿°ú´Â º®Ã¼°¼º°ú Áö¹ÝÁ¶°Ç¿¡ Á÷Á¢ÀûÀÎ °ü°è°¡ ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. ¸ðÇü½ÇÇè¿¡¼ ¾òÀº º®Ã¼º¯À§ ¹× Åä¾ÐºÐÆ÷´Â ±âÁ¸ ź¼Ò¼ºº¸¹ý ÇÁ·Î±×·¥À¸·Î ¶ÇÇÑ ÁöǥħÇÏ ¹× ÁöÁߺ¯À§´Â º» ¿¬±¸Áø¿¡ ÀÇÇØ °³¹ßµÈ GDHM Àç·á¸ðµ¨À» ÀÌ¿ëÇÑ À¯ÇÑ¿ä¼Ò¹ý ÇÁ·Î±×·¥À¸·Î °¢°¢ ºñ±³ºÐ¼®ÇÏ¿´´Ù. ±âÁ¸ ź¼Ò¼ºº¸¹ý ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© ¸ðÇü½ÇÇèÀ» ÇØ¼®ÇÑ °á°ú º®Ã¼º¯À§ ¹× Åä¾ÐºÐÆ÷´Â ¸ðÇü½ÇÇè °á°ú¿Í »óÀÌÇÑ °á°ú¸¦ ¾ò¾úÀ¸¸ç, GDHM Àç·á¸ðµ¨À» Àû¿ëÇÑ À¯ÇÑ¿ä¼ÒÇØ¼®¿¡¼´Â º®Ã¼¼öÆòº¯À§ÀÇ ÇüÅ´ ´Ù¼Ò »óÀÌÇÑ °á°ú¸¦ ¾ò¾úÀ¸³ª ¹è¸éÁö¹ÝÀÇ ÁöÁߺ¯À§ ºÐÆ÷´Â º®Ã¼°¼º¿¡ µû¶ó¼ À¯»çÇÑ °á°ú¸¦ ¾ò¾ú´Ù. |
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| Model tests on propped retaining walls were performed for the investigation of wall displacement, distribution of earth pressure, surface settlement and underground movement at various excavation stage in sand. The result of model tests on the trough of surface settlement showed considerable difference depending on the characteristic of wall stiffness, wall friction and soil condition. The location of maximum underground movement were found to be at range of 0.15H to 0. 1H(H: Final excavation depth). Effect of arching by the redistribution of earth pressure were closely related to the stiffness of wall as well as the soil condition. The wall displacement and earth pressure distribution were simulated by elasto - plastic beam analysis program and finite element method with GDHM model respectively. The result of elasto-plastic analysis showed some discrepancy on the wall displacement and earth pressure, but result of underground movement by FEM with various wall stiffness were in good agreement with the model tests. |
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| Ű¿öµå |
| Underground settlement;Surface settlement;Earth pressure;Wall displacement;Arching effect;Numerical Analysis;GDHM Model;Elasto-Plastic Analysis; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.5, 1999³â, pp.259-279
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749679)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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