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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.5, 2004³â, pp.109-116
º¸°­Àç ¼³Ä¡ °£°Ý¿¡ µû¸¥ Áö¿À±×¸®µå º¸°­Åä¿Ëº®ÀÇ º¯Çü°Åµ¿¿¡ °üÇÑ ¸ðÇü½ÇÇè
( Model Tests on the Behavior of Geogrid Reinforced Soil Walls with Vertical Spacing of Reinforcement Layers )
Á¶»ï´ö;¾ÈźÀ;À̱¤¿ì;¿À¼¼¿ë; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸ºÎ;¿ì¼Û´ëÇб³ Åä¸ñȯ°æ°øÇÐ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸ºÎ;
 
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»óÀçÇÏÁß ¹× º¸°­ÀçÀÇ Æ÷¼³ °£°ÝÀÌ º¸°­Åä¿Ëº®ÀÇ º¯Çü°Åµ¿¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡Çϱâ À§ÇÏ¿© ÀÏ·ÃÀÇ ¸ðÇü½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ¸ðÇü º¸°­Åä¿Ëº®Àº $100cm imes 140 imes 100cm$ Å©±âÀÇ ¸ðÇüÅäÁ¶³»¿¡ ÃàÁ¶ÇÏ¿´´Ù. º» ¸ðÇü½ÇÇè¿¡¼­´Â º¸°­Àç·Î ÀÎÀå°­µµ 2.26t/mÀÇ Áö¿À±×¸®µå¸¦ »ç¿ëÇÏ¿´°í, µÚä¿òÈëÀ¸·Î´Â ÅëÀϺзù¹ý»ó SM¿¡ ÇØ´çµÇ´Â È­°­Ç³È­Å並 »ç¿ëÇÏ¿´´Ù. ¸ðÇü¿Ëº® ÃàÁ¶ÈÄ »óÀçÇÏÁß ÀçÇÏ¿¡ µû¸¥ º®Ã¼¼öÆòº¯À§¿Í º¸°­ÀçÀÇ ÀÎÀ庯ÇüÀ» ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇè°á°ú, »óÀçÇÏÁßÀÌ Áõ°¡ÇÒ¼ö·Ï ¸ðÇü º¸°­Åä¿Ëº®ÀÇ º®Ã¼º¯À§ ¹× º¸°­Àç ÀÎÀå·ÂÀÌ Áõ°¡ÇÏ¿´´Ù. º®Ã¼ ÃÖ´ë¼öÆòº¯À§ ¹× º¸°­Àç ÃÖ´ë ÀÎÀå·ÂÀº º®Ã¼ ÇÏ´ÜÀ¸·ÎºÎÅÍ 0.7H ÁöÁ¡¿¡¼­ ÃøÁ¤µÇ¾úÀ¸¸ç, ±× Å©±â´Â »óÀçÇÏÁßÀÌ Áõ°¡ÇÒ¼ö·Ï º¯ÇüÁõ°¡À²ÀÌ Ä¿Áö´Â ºñ¼±ÇüÀûÀÎ ÇüŸ¦ º¸¿´´Ù.
The model tests are conducted to assess the behavior characteristics of geogrid reinforced soil walls according to different surcharge pressures and reinforcement spacings. The models are built in the box having dimension, 100cm tall, 140cm long, and 100cm wide. The reinforcement used is geogrid(tensile strength 2.26t/m). Decomposed ganite soil(SM) is used as a backfill material. The strain gauges and LVDTs are Installed to obtain the strain in the reinforcements and the displacements of the wall face. From the results, it can be concluded that the more the reinforcement tensile strength increases, the more the wall displacements and the geogrid strains decreases. The maximum wall displacements and geogrid strains of the model walls occur due to the uniform surcharge pressure at the 0.7H from the bottom of the wall. The horizontal displacements of the wall face nonlinearly increase with the increase of surcharge pressures, and this nonlinear behavior is significantly presented for larger surcharge due to the nonlinear tensile strength-strain relationship of the reinforcements.
 
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Model test;Reinforced soil wall;Reinforcement spacing;Surcharge load;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.5, 2004³â, pp.109-116
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922462144)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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