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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.6, 1999³â, pp.167-185
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ºñ±ÕÁú Áö¹Ý¿¡¼ Çן °üÀÔÇÑ ´ÜÀÏ °¼º¸»¶ÒÀÇ ¼öÆò°Åµ¿ ¿¬±¸
( Lateral Behavior of Single Rigid Driven Pile in Non-Homogeneous Sand ) |
| ±è¿µ¼ö;±èº´Å¹; °æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æºÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
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| ¼öÆò°Åµ¿ÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇÏ¿© ÀÏ·ÃÀÇ ¿¬¼ÓµÈ ¸ðÇü½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. º» ³í¹®Àº ±ÕÁú ¹× ºñ±ÕÁúÀÇ »çÁúÅä Áö¹Ý¿¡¼ Çן ½Ã°øµÈ ´ÜÀÏ °¼º¸»¶ÒÀÇ ¼öÆò°Åµ¿¿¡ ´ëÇÑ ¸ðÇü½ÇÇè °á°úµéÀ» °íÂûÇÏ¿´´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ¸»¶ÒÀÇ ¼öÆò°Åµ¿ Ư¼º¿¡ ´ëÇÑ ¸»¶Ò ½Ã°ø»óÅÂ(Driven & Embedded), ¸»¶Ò ±ÙÀÔ±æÀÌ¿¡ ´ëÇÑ ÇϺÎÁö¹ÝÀÇ µÎ²²ºñ(H/L), ±×¸®°í Áö¹Ý¹Ý·Â °è¼öºñÀÇ ¿µÇâ¿¡ °üÇÏ¿© ½ÇÇè ÀûÀÎ ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ¸ðÇü½ÇÇè °á°úµé¿¡ ÀÇÇϸé, ¼öÆò°Åµ¿Àº ºñ±ÕÁú Áö¹Ý¿¡¼ Çן ¿¡³ÊÁö¿¡ »ó´çÈ÷ ÀÇÁ¸Çϰí ÀÖ´Ù. Áï, H/L=0.75ÀÇ °æ¿ì Çן ¿¡³ÊÁö°¡ 3¹è Áõ°¡¿¡ ÀÇÇÏ¿© ¸ÅÀÔ¸»¶Ò¿¡ ´ëÇÑ ¼öÆòº¯À§ °¨¼ÒÀ²ÀÌ ¾à 2.12¹è Á¤µµ Áõ°¡ÇÏ¿´´Ù. $E_{h1}/E_{h2}=5.56$ÀÎ ºñ±ÕÁú Áö¹Ý¿¡¼ Çן¸»¶ÒÀÇ °æ¿ì ¼öÆòº¯À§ÀÇ °¨¼Ò¿¡ ´ëÇÑ °¼ºÀÌ Å« »óºÎÃþÀÇ È¿°ú°¡ ¸ÅÀÔ¸»¶Ò¿¡ ºñÇÏ¿© »ó´çÈ÷ Àû°Ô ÀÛ¿ëÇÏ¿´´Ù. Çן Áøµ¿À¸·Î Å丳ÀÚÀÇ Àç¹è¿ Çö»óÀ¸·Î ¸»¶ÒÁÖº¯ Áö¹Ý °¼ºÀÌ Áõ°¡Çϰí ÀÌ·Î ÀÎÇÏ¿© ¸»¶ÒÀÇ »ó´ë°¼ºÀÌ Å©°Ô Áõ°¡ÇÏ¿© ¸»¶ÒÀÌ ÈÚ¼º¸»¶Ò°ú ºñ½ÁÇÑ °Åµ¿À» º¸¿´À¸¸ç, ºñ±ÕÁú Áö¹Ý¿¡¼ Çן ½Ã°ø¿¡ µû¸¥ ÃÖ´ë ÈÚ¸ð¸àÆ®´Â ¸ÅÀÔ¸»¶ÒÀÇ 100 - 132%Á¤µµ Å©°Ô ³ªÅ¸³µ´Ù. º» ¿¬±¸¿¡¼´Â $y_D/y_E; ¿Í; MBM_D/MBM_E$¿¡ ´ëÇÑ ¼öÆòÇÏÁß°ú H/LÀÇ ¿µÇâµéÀ» ¸ðÇü½ÇÇè °á°úµé·ÎºÎÅÍ ½ÇÇè½ÄÀ¸·Î Á¦¾ÈÇÏ¿´´Ù. |
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| A series of model tests was performed to find the characteristics of lateral behavior of single rigid pile. This paper shows the results of model tests on the lateral behavior of single rigid driven pile in non-homogeneous(two layered) Nak-Dong River sands. The purpose of this paper is to investigate the effect of the ratio of lower layer thickness to embedded pile length, the coefficient ratio of the subgrade reaction and the pile construction conditions(driven & embedded piles) on the characteristics of lateral behavior of single pile. The results of model tests show that the lateral behavior in non-homogeneous soil depends upon drop energy considerably, that is, in the case of H/L=0.75, as the drop energy increases three times the decrease percentage increases about 2.12 times. In the driven pile with non-homogeneous soil of $E_{h1}/E_{h2}=5.56$, the effect of upper layer with large stiffness on the decrease of lateral deflection is remarkably smaller than embedded pile. In non-homogeneous soil, the maximum bending moment of driven pile is in the range of 100 132% in comparison with embedded pile. The reason is that the stiffness of soil around pile increases with drop vibration and so the pile behavior is similar to the flexible pile behavior by means of the increase of relative stiffness of pile, In this paper, the experimental equations for lateral load and H/L on $y_D/y_E ; & ; MBM_D/MBM_E$ |
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| Ű¿öµå |
| Laterally loaded pile;Non-homogeneous;Driven Pile;Two layers; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.6, 1999³â, pp.167-185
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749850)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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