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Çѱ¹Áö¹Ý°øÇÐȸ / v.17, no.6, 2001³â, pp.193-205
½Ç³»¸ðÇü½ÇÇèÀ» ÅëÇÑ ±º¸»¶Ò±âÃÊÀÇ °Åµ¿ºÐ¼®
( Model Tests of Pile Groups in Sand )
Á¤»óÈÆ;Á¤»ó¼¶; ¿¬¼¼´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¿¬¼¼´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¼öÁ÷ ¹× ¼öÆòÇÏÁßÀ» ¹Þ´Â ±º¸»¶ÒÀÇ ¹è¿­ ¹× Á߽ɰ£°ÝÀ» °í·ÁÇÑ ½Ç³»¸ðÇü½ÇÇèÀ» ¼öÇàÇÏ¿© ±º¸»¶Ò±âÃÊÀÇ °Åµ¿Æ¯¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ¸ðÇü¸»¶ÒÀº PVC¸»¶ÒÀ» »ç¿ëÇÏ¿´À¸¸ç ¸ðÇüÁö¹ÝÀº ÁÖ¹®ÁøÇ¥Áػ縦 ÀÌ¿ëÇØ Á¶¹ÐÇÑ »çÁúÅä Áö¹Ý(Dr=73%)À¸·Î Á¶¼ºÇÏ¿´´Ù. ¸»¶ÒÀÇ ¹è¿­Àº $2 imes2,; 3 imes3$ ¹è¿­, ¸»¶ÒÁ߽ɰ£°ÝÀº ¸»¶ÒÁ÷°æÀÇ 2.5, 5.0, 7.5 ¹èÀÎ °æ¿ì¸¦ °í·ÁÇÏ¿´´Ù. ½ÇÇè°á°ú ¼öÁ÷ÇÏÁßÀ» ¹Þ´Â ¸»¶Ò¿¡¼­´Â µÎºÎ¿¡¼­ÀÇ ¼öÁ÷ÇÏÁß-ħÇÏ·®°î¼±, ÇÏÁßÀüÀÌÇÔ¼öÀÎ Áָ鸶Âû¶ô·Â-º¯À§°î¼±(t-z °î¼±)°ú ¼±´ÜÁöÁö·Â-º¯À§°î¼±(q-z °î¼±)À» ±¸ÇÏ¿´À¸¸ç, ¼öÆòÇÏÁßÀ» ¹Þ´Â ¸»¶Ò¿¡¼­´Â µÎºÎ¿¡¼­ÀÇ ¼öÆòÇÏÁß-¼öÆòº¯À§°î¼±, ÇÏÁßÀüÀÌÇÔ¼öÀÎ Áö¹Ý¹Ý·Â-º¯À§°î¼±(p-y°î¼±)À» ±¸ÇÏ¿´°í À̸¦ Åä´ë·Î ¸»¶ÒÀÇ ¹è¿­ ¹× Á߽ɰ£°Ý¿¡ µû¸¥ ±º¸»¶Ò°è¼ö¸¦ Á¦¾ÈÇÏ¿´´Ù. ¶ÇÇÑ ¼öÆòÇÏÁßÀ» ¹Þ´Â ±º¸»¶ÒÀÇ °¢ ¿­¿¡ ´ëÇØ »óÈ£ÀÛ¿ë°è¼ö(P-multiplier)¸¦ »êÁ¤ÇÏ¿´´Ù.
In this study the behavior of pile groups is investigated experimentally. Special attention is given to the load transfer characteristics of pile groups and to the evaluation of the group effects under vertical and horizontal loadings. In the laboratory experiments, vertical and lateral loadings were imposed on model piles in sand. Model piles made of PVC embedded in Joomoonjin sand were used in this study. Pile arrangements($2 imes2,; 3 imes3$) and pile spacings(2.5D, 5.OD, 7.5D) were considered. Load-transfer curves(t-z, q-z and p-y curves), load-deflection curves and group interaction factors were obtained from the experimental results. The group interaction factors under both vertical and horizontal loadings were proposed for the cases of $2 imes2; and; 3 imes3$ pile groups with varying ratios of pile spacings. p-multipliers in this study were found for the individual piles in $2 imes2; and; 3 imes3$ pile groups.
 
Ű¿öµå
Group interaction factors;Load transfer curves;Pile groups;Pile arrangements;p-multipliors;Pile spacings;Sand;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.17, no.6, 2001³â, pp.193-205
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920879648)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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