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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.8, 2005³â, pp.85-93
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´ÙÁü ȰdzÈÅäÀÇ ÀÀ·ÂÀ̷¿¡ µû¸¥ Á¤Áö»óÅ Åä¾Ð°è¼öÀÇ º¯È
( Variations of Coefficient of Earth Pressure at Rest According to Stress Paths for Compacted Residual Soils ) |
| À̺´½Ä;¹Ú¼º±¹; °øÁÖ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;(ÁÖ)¿ÀÁÖ¿£Áö´Ï¾î¸µ, ÅͳκÎ;
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| º®Ã¼ º¯À§°¡ Á¦ÇѵǴ ¿Ëº® ±¸Á¶¹°¿¡ ÀÛ¿ëÇÏ´Â Åä¾ÐÀº ½Ã°ø Áß µÞä¿òÅä¿¡ ÀÛ¿ëÇÏ´Â ´ÙÁüÀÀ·ÂÀÇ ¿µÇâ¿¡ µû¶ó º¯ÈÇÑ´Ù. Á¤ÁöÅä¾ÐÀ» º¸´Ù ÀûÀýÇÏ°Ô ÃßÁ¤Çϱâ À§Çؼ´Â ÀÌ·¯ÇÑ ¿µÇâÀ» °í·ÁÇÏ¿© Á¤ÁöÅä¾Ð°è¼ö¸¦ »êÁ¤ÇÏ¿©¾ß ÇÒ Çʿ䰡 ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ´ÙÁü ȰdzÈÅä¿¡ ´ëÇØ¼ Á¤ÁöÅä¾Ð»óÅ¿¡¼ ÈëÀÌ ¹Þ´Â ÀÀ·ÂÀÇ ÀçÇÏ, Á¦ÇÏ, Àç ÀçÇÏ ´Ü°è¸¦ ¸ð»çÇÏ´Â ÀÀ·ÂÀ̷¸ðµ¨À» ´ÜÁÖ±â $K_o$-»ïÃà½ÃÇèÀ¸·Î ÀçÇöÇÏ¿´´Ù. ½ÇÇè°á°ú·ÎºÎÅÍ °¢ ÇÏÁߴܰèÀÇ ÀÀ·ÂÀÌ·ÂÁ¶°Ç¿¡ ´ëÇÑ Á¤Áö»óÅÂÅä¾ÐÀ» °áÁ¤ÇÏ¿´´Ù. ÀÌµé °ªÀ» °æÇè½ÄÀ¸·ÎºÎÅÍ ¾òÀº °ª°ú ºñ±³ÇÏ¿© ´ÙÁü ȰdzÈÅä¿¡ ´ëÇÑ Á¤ÁöÅä¾Ð°è¼ö °áÁ¤À» À§ÇÑ °æÇè½ÄÀÇ Àû¿ë¼ºÀ» Æò°¡ÇÏ¿´´Ù. °á°úÀûÀ¸·Î ´ÙÁü ȰdzÈÅä¿¡ ´ëÇÑ °æÇè½ÄÀÇ Àû¿ë¼ºÀº Àç ÀçÇÏ °æ·Î¿¡ ´ëÇØ¼ ¿ÀÂ÷ °¨¾ÈÀÌ °¡´ÉÇÑ °æ¿ì¿¡ ´ëüÀûÀ¸·Î ÀûÀýÇÑ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. |
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| Earth pressures acting on unmovable rigid walls vary according to loading-unloading conditions due to compaction experienced by backfill soil. Appropriate coefficients of earth pressure at rest with considering this influence need to be determined to estimate earth pressures more reasonably.0 this study, a single cycle hysteretic model simulating soil's loading-unloading-reloading behavior under $K_o-condition$ was reproduced by conducting a series of $K_o-triaxial$ test for compacted residual soils. Based on the results, coefficients of earth pressure at rest at each stage of stress paths such as, virgin loading, unloading and reloading were determined. Also, applicabilities of empirical equations to the estimation of the coefficients were evaluated by comparing the experimental results with those estimated by the equations. As a result, it was concluded that the empirical equations could be applied reasonably to the estimation of the coefficients for compacted residual soils in cases where some amount of error might be acceptable for the reloading stage of the hysteretic model. |
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| Ű¿öµå |
| Coefficient of earth pressure at rest;Compaction induced earth pressure;Soil compaction hysteretic model; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.8, 2005³â, pp.85-93
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200507523322618)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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