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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.10, 2006³â, pp.47-54
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¹«¸®¸»¶ÒÀÇ Áָ鸶Âû·Â ºÐ´ãºñÀ² Ư¼º
( Characteristics of Distribution Ratio for Skin Friction in Group Piles ) |
| ÀÌÁØ´ë;¾Èº´Ã¶; ¼¼¸í´ëÇб³ Åä¸ñ°øÇаú;ÃæºÏ´ëÇб³ Åä¸ñ°øÇаú;
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| H pileÀº ¿øÇü¸»¶Ò¿¡ ºñÇØ Çן¿¡ ÀÇÇØ ½±°Ô °üÀÔÀÌ µÇ¸ç, ³ôÀº Áָ鸶Âû·Â°ú Æó»öÈ¿°ú¸¦ ³ªÅ¸³»´Â Ư¡À» °¡Áö°í ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ½Ç³»½ÃÇèÀ» ÅëÇÑ È°Ç³ÈÅä Áö¹Ý¿¡ °üÀÔµÈ HÇü° ¹«¸®¸»¶ÒÀÇ Áָ鸶Âû·Â ºÐÆ÷Ư¼ºÀ» °üÂûÇϴµ¥ ¸ñÀûÀÌ ÀÖ´Ù. ¸»¶ÒÀÇ ¹è¿$(1{ imes}2,;1{ imes}3,;2{ imes}2,;2{ imes}3,;3{ imes}3)$, ¸»¶Ò¼³Ä¡°£°Ý(2D, 4D, 6D)°ú Áö¹Ý¹Ðµµ(40%, 80%)¿¡ µû¸¥ ÀçÇϽÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÇÇè°á°ú Àüü ÀçÇÏÁß¿¡ ´ëÇÑ Áָ鸶Âû·ÂÀÇ ºÐÆ÷ºñÀ²Àº $3{ imes}3$ ¹«¸®¸»¶ÒÀÇ °æ¿ì ¸»¶Ò°£°Ýºñ°¡ Áõ°¡ÇÒ¼ö·Ï Á¶¹ÐÇÑ Áö¹ÝÀÇ °æ¿ì $48{sim}39%$, ´À½¼ÇÑ Áö¹ÝÀÇ °æ¿ì¿¡´Â $32{sim}27%$·Î °¢°¢ °¨¼ÒÇÏ¿´´Ù ±×¸®°í ¸»¶ÒħÇÏ·®¿¡ µû¸¥ Áָ鸶Âû·Â ºÐÆ÷ºñÀ²Àº ´À½¼ÇÑ Áö¹ÝÁ¶°Ç¿¡¼ $2{ imes}2$¹«¸®¸»¶ÒÀÇ °æ¿ì $58{sim}33.2%$, $3{ imes}3$¹«¸®¸»¶ÒÀÇ °æ¿ì $65{sim}38%$·Î °¢°¢ °¨¼ÒµÇ¾ú´Ù. |
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| H-pile can be more easily driven than pipe pile by pile driver and shows high skin friction and plugging effect. This experimental study was devoted to investigate skin friction of H group piles in granite soil under laboratory test. Pile arrangements $(1{ imes}2,;1{ imes}3,;2{ imes}2,;2{ imes}3,;3{ imes}3)$, pile space (2D,4D,6D), and soil density $(D_r=40%,;80%)$ were tested. The main results obtained from the model tests can be summarized as follows. Distribution ratio of skin friction for total load decreased by $48{sim}39%$ (dense soil), $32{sim}27%$ (loose soil) as piles space ratio increases in case of $3{ imes}3$ group piles. And the distribution ratio of skin friction by pile settlements under loose soil decreased by about $58{sim}33.2%$ in $2{ imes}2$ group piles and about $65{sim}38%$ in $3{ imes}3$ group piles respectively |
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| Ű¿öµå |
| Distribution ratio;Pile arrangements;Piles space ratio;Skin friction;Soil density; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.10, 2006³â, pp.47-54
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623520965)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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