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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.6, 1999³â, pp.29-44
»çÁúÅä Áö¹Ý¿¡¼­ ´ÜÀÏ °­¼º¸»¶ÒÀÇ ¼öÆò°Åµ¿¿¡ ´ëÇÑ ½Ã°ø¹æ¹ýÀÇ ¿µÇâ
( Effect of Pile Construction on Lateral Behavior of Single Rigid Pile in Sand )
±èº´Å¹;±è¿µ¼ö;¼­ÀνÄ; °æºÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;°æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æµ¿Á¤º¸´ëÇÐ Åä¸ñ°ú;
 
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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»óÅ (Driven & Embedded), ¸»¶Ò ±ÙÀÔ±æÀÌ¿¡ ´ëÇÑ ÇϺÎÁö¹ÝÀÇ µÎ²²ºñ (H/L),±×¸®°í Áö¹ÝÀÇ »ó´ë¹ÐµµÀÇ ¿µÇâ¿¡ °üÇÏ¿© ½ÇÇèÀûÀÎ ¿¬±¸¸¦ ¼öÇàÇϰí ÀÌ·¯ÇÑ ¿µÇâµéÀ» Á¤·®È­ ÇÒ ¼ö ÀÖ´Â ½ÇÇè°á°ú¸¦ ¾ò¾ú´Ù. ¸ðÇü ½ÇÇè °á°úµé¿¡ ÀÇÇϸé, ¼öÆò°Åµ¿Àº ´À½¼ÇÑ ±ÕÁúÁö¹Ý¿¡¼­ ½Ã°ø¹æ¹ý¿¡ »ó´çÈ÷ ÀÇÁ¸ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¸»¶Ò½Ã°ø½Ã Çן¹æ¹ý¿¡ ÀÇÁ¸ÇÒ °æ¿ì ±ÕÁúÁö¹Ý¿¡¼­´Â ´À½¼ÇÑ Áö¹ÝÀϼö·Ï ±×¸®°í ºñ±ÕÁú Áö¹Ý $(E_{h1}/E_{h2}/=0.18)$¿¡¼­´Â »óºÎÃþ µÎ²²°¡ Ŭ¼ö·Ï ¼öÆòº¯À§ °¨¼Ò¿¡ »ó´çÇÑ È¿°ú¸¦ ¾òÀ» ¼ö ÀÖÀ¸³ª, ÃÖ´ë ÈÚ¸ð¸àÆ® °¨¼Ò´Â ¼öÆòº¯À§ °¨¼Ò¿Í Á¤¹Ý´ëÀÇ °á°ú¸¦ ³ªÅ¸³Â´Ù. ¼öÆòº¯À§ Ãø¸é¿¡¼­, ¸ÅÀÔ¸»¶Ò¿¡ ´ëÇÑ Çן¸»¶ÒÀÇ º¯À§ºñ $(y_{Driven}y_{Embedded})$´Â ±ÕÁúÁö¹ÝÀÇ °¢ »ó´ë ¹Ðµµ¿¡ ´ëÇÏ¿© 0.65-0.88 $(D_r=90%)$¿Í 0.38-0.65 (D$_{r}$=61.8%)ÀÇ ¹üÀ§·Î ±×¸®°í ºñ±ÕÁúÁö¹Ý¿¡¼­ 0.6-0.88 ÀÇ ¹üÀ§·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ, º» ¿¬±¸¿¡¼­´Â $y_D/y_E ;¿Í; NBM_D/MBM_E$¿¡ ´ëÇÑ Çן°í¿Í H/LÀÇ ¿µÇâµéÀ» ¸ðÇü½ÇÇè °á°úµé·ÎºÎÅÍ ½ÇÇè½ÄÀ¸·Î Á¦¾ÈÇÏ¿´´Ù.
This paper shows the results of model tests on the lateral behavior of single rigid pile, which was constructed by driving, in homogeneous and non-homogeneous (two layered) NakDong River sands. The purpose of the present paper is to investigate the effect of ratio of lower layer thickness to embedded pile length, relative density of sand and pile construction conditions (Driven & Embedded piles) on the characteristics of lateral behavior of single pile. These effects can be quantified only by the results of model tests. As a model result, the lateral behavior depends upon the pile construction condition in loose-density soil more than in high-density soil. If the pile construction depends upon driving construction, the decrease of deflection remarkably increases for both loose homogeneous sand and non-homogeneous soil$(E_{h1}/E_{h2}/=0.18)$ with high thickness of upper layer but the decrease of maximum bending moment shows the opposite result to the decrease of deflection. And, with respect to deflection, it was found that the deflection ratio $(y_{Driven}y_{Embedded})$ of embedded to driven piles has the ranges of 0.65 - 0.88 $(D_r=90%)$0.38 - 0.65 $(D_r=61.8%)$ for each relative density of homogeneous soil and the range of 0.6 - 0.88 for non-homogeneous soil. Also, in this study, the experimental equation for the effects of drop height (DH) and H/L on the ratios of $y_D/y_E; and MBM_D/MBM_ E$ is suggested from model tests.
 
Ű¿öµå
Laterally loaded pile;Non-homogeneous;Driven pile;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.6, 1999³â, pp.29-44
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749732)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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