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Çѱ¹Áö¹Ý°øÇÐȸ / v.7, no.4, 1991³â, pp.35-48
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( A Study on Failure Mechanism of Reinforced Earth Retaining Wall under Strip Load ) |
| À¯³²Àç;±è¿µ±æ; Á¤È¸¿ø, °¿ø´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, °¿ø´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| º» ³í¹®¿¡¼´Â ¿ø½É¸ðÇü½ÇÇè °á°ú¸¦ ¹ÙÅÁÀ¸·Î ´ë»óÀÇ »óÀçÇÏÁßÇÏÀÇ º¸°Åä¿Ëº®ÀÇ ÆÄ±« ¸ÞÄ«´ÏÁò¿¡ °üÇÏ¿© ¿¬±¸¸¦ ½Ç½ÃÇÏ¿´´Ù. ¸ðÇü½ÇÇèÀº º¸°ÀçÀÇ ÀçÁú, ±æÀÌ, ¹è¿À» º¯È½ÃŰ¸é¼ ½Ç½ÃÇÏ¿´À¸¸ç º¸°Àç¿¡ À¯¹ßµÇ´Â ÀÎÀå·Â À» ÃøÁ¤Çϱâ À§ÇÏ¿© strain gauge¸¦ ºÎÂøÇÏ¿´´Ù. ½ÇÇè °á°ú¸¦ ºÐ¼®ÇÏ¿© ÇöÀç »ç¿ëµÇ°í ÀÖ´Â ¼³°è ¹× ÇØ¼®¹æ¹ýµé°ú ºñ±³ÇÔÀ¸·Î¼ ±×µéÀÇ Å¸´ç¼º ¿¡ ´ëÇÑ °ËÁõÀ» ½Ç½ÃÇÏ¿´´Ù. °á·ÐÀûÀ¸·Î ¿ø½É¸ðÇü½ÇÇèÀº º¸°Åä¿Ëº®ÀÇ °Åµ¿À» ¿¬±¸Çϱâ À§ÇÑ ¸Å¿ì È¿°úÀûÀÎ ¹æ¹ýÀ̾ú´Ù. »ó ÀçÇÏÁßÇÏÀÇ º¸°Åä¿Ëº®ÀÇ ±ØÇÑ ÁöÁö·ÂÀ» »êÁ¤Çϱâ À§ÇÑ 2:1ÀÀ·Â ºÐÆ÷¹ýÀº ½ÇÇè°á°ú¿Í ÀÏÄ¡ÇÏ¿´´Ù. µÞä¿òÀçÀÇ ÀÚÁß°ú »óÀçÇÏÁß¿¡ ÀÇÇÏ¿© º¸°Àç¿¡ À¯¹ßµÇ´Â ÀÎÀå·ÂÀ» »êÁ¤Çϱâ À§ÇÑ Áßø¹ýÀÌ À¯È¿ÇÏ´Ù´Â °á·ÐÀ» ¾ò¾ú´Ù. ź¼ºÀÌ·ÐÀ» »ç¿ëÇÏ¿© »óÀçÇÏÁß¿¡ ÀÇÇØ º¸°Àç¿¡ À¯¹ßµÇ´Â ÃÖ´ë ÀÎÀå·ÂÀ» »êÁ¤ÇÑ °á°ú Boussinesq¿Í WestergaarÇØ´Â ½ÇÇè°á°ú º¸´Ù ÀÛ°Ô »êÁ¤µÈ ¹Ý¸é¿¡ FrohlichÇØ´Â ½ÇÇè°á°ú¿Í ÀÏÄ¡ÇÏ¿´´Ù. |
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| Based on centrifuge model tests, the failure mechanism of reinforced earth retaining wall under strip load was investigated in this paper. Tests were performed by changing the materials of reinforcing strips, strip lengths, and strip arrangements. The strips were strain-gauged to measure the tensions in strips. The results were analyzed and compared with various design methosds in use to verify their feasibility. Consequently, a centrifuge model test was an effective method of investigating the behavior of reinforced earth retaining wall. The 2 : 1 stress diffusion method showed comparable results with tests in estimating the capacity of the reinforced earth wall under strip load. The superposition of tensions due to selfweight of the backfill and strip load was valid to estimate total tensions mobilized in strips. Using the elasticity theory to estimate the maximum tension mobilized in strips due to surcharge, while solutions of Boussinesq and Westergaard underestimated less tensions than the measured valises, Frohlich solution showed the comparable results with tests. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.7, no.4, 1991³â, pp.35-48
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199111920444368)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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