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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.5, 2005³â, pp.111-122
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¾Ï¹Ý¿¡ ±ÙÀÔµÈ ´ë±¸°æ ÇöÀ埼³¸»¶ÒÀÇ Ä§ÇÏÆ¯¼º
( Settlement Characteristics of Large Drilled Shafts Embedded in Bed Rocks ) |
| È«¿øÇ¥;¿©±Ô±Ç;³²Á¤¸¸;ÀÌÀçÈ£; Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ°øÇаú;»ïºÎÅä°Ç(ÁÖ), ±â¼ú¿¬±¸½Ç;Á¦ÁÖ´ëÇб³ ÇØ¾ç°úÇдëÇÐ ÇØ¾ç°úÇкÎ;Áß¾Ó´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
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| ¾Ï¹Ý¿¡ ±ÙÀÔµÈ ´ë±¸°æ ÇöÀ埼³¸»¶Ò¿¡ ´ëÇÑ ÇÏÁß-ħÇÏ·® Ư¼ºÀ» Á¶»çÇϱâ À§ÇÏ¿© 35°³¼Ò¿¡¼ ½Ç½ÃµÈ ¸»¶ÒÀçÇϽÃÇè °á°ú¸¦ ºÐ¼®ÇÏ¿´´Ù. ÀϹÝÀûÀ¸·Î ´Ü´ÜÇÑ ¾Ï¹Ý¿¡ ±ÙÀÔµÈ ´ë±¸°æ ÇöÀ埼³¸»¶ÒÀÇ Ä§ÇÏ·®Àº ´ë´ÜÈ÷ ¹Ì¼ÒÇÏ¿© ¸»¶ÒÀÇ ¼³°è ½Ã¹æ¼»ó¿¡ Á¦½ÃµÈ ¸»¶ÒÀÇ ÀüüħÇÏ·®À̳ª ÀÜ·ùħÇÏ·®¿¡ ´ëÇÑ ±ÔÁ¤À» Àû¿ëÇÏ¿© ±ØÇÑÇÏÁßÀ» °áÁ¤ÇÒ ¼ö°¡ ¾ø´Ù. µû¶ó¼ ¾Ï¹Ý¿¡ ±ÙÀÔµÈ ´ë±¸°æ ÇöÀ埼³¸»¶ÒÀÇ Ç׺¹ÇÏÁßÀ» °áÁ¤Çϱâ À§ÇÏ¿© Çן¸»¶ÒÀ» ´ë»óÀ¸·Î ÀÌÀü¿¡ Á¦½ÃµÈ P-logSºÐ¼®¹ýÀ» Àû¿ëÇÏ¿© º¸¾Ò´Ù. Àû¿ë°á°ú, ÀÌ ¹æ¹ýÀº ±âÁ¸ÀÇ ´Ù¸¥ ºÐ¼®¹ýÀÎ P-S, logP-logS, S-logt ¹× P-SºÐ¼®¹ý¿¡ ºñÇÏ¿© Ç׺¹ÇÏÁß°áÁ¤ÀÌ ºñ±³Àû °£ÆíÇϰí Á¤È®ÇÏ¿´´Ù. ±×¸®°í ¾Ï¹Ý¿¡ ±ÙÀÔµÈ ´ë±¸°æ ÇöÀ埼³¸»¶ÒÀÇ ÇÏÁßÀÌ Ç׺¹ÇÏÁß¿¡ µµ´ÞÇϱâ Àü±îÁöÀÇ ¸»¶ÒÀÇ ÇÏÁß-ħÇÏ·® °ü°è¸¦ ³ªÅ¸³¾ ¼ö Àִ ȸ±ÍºÐ¼®½ÄÀÌ Á¦½ÃµÇ¾ú´Ù. ¶ÇÇÑ, ÁöÁöÃþÀÇ Á¾·ù¿Í ¾Ï¹Ý ±ÙÀԽɵµ¿¡ µû¸¥ ¸»¶ÒÀÇ Ä§Çϰŵ¿Æ¯¼ºµµ Á¶»çÇÏ¿´´Ù. ³¡À¸·Î ÇöÀ帻¶ÒÀçÇϽÃÇè°á°ú¿¡ ´ëÇÑ °íÂûÀ» ÅëÇÏ¿© ¾Ï¹Ý¿¡ ±ÙÀÔµÈ ÇöÀ埼³¸»¶ÒÀÇ Ç׺¹ÇÏÁßÀ» °áÁ¤ÇÒ ¼ö ÀÖ´Â »õ·Î¿î ħÇÏ·® ±âÁذªÀÌ Á¦½ÃµÇ¾ú´Ù. |
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| The data on the pile load tests performed on 35 large drilled shafts are analyzed to investigate the load-settlement characteristics of large drilled shafts embedded in bed rocks. Generally, the settlement of large drilled shafts embedded in bed rocks is too small to determine the ultimated load with application of the regulation in design code for either the total settlement or the residual settlement. Therefore, to determine the yield load of large drilled shafts embedded in bed rocks, p(load)-logS (settlement) curve method, which has been proposed originally for the driven pile, was applied to the investigation on the data of the pile load tests. This technique shows that the yield load can be determined accurately and easily rather than other conventional techniques such as P-S, logp-logS, S-logt, and P-S curve methods. An empirical equation is proposed to represent the relationship between pile load and settlement before the yield loading condition. And the settlement of piles was related with the depth embedded in rock as well as rock properties. Based on the investigation on the data of pile load tests, the resonable regulations f3r both the total settlement and the residual settlement are proposed to determine the yield load of large drilled shafts embedded in bed rocks. |
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| Ű¿öµå |
| Large drilled shaft;Pile load test;Settlement;Ultimate load;Yield load; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.5, 2005³â, pp.111-122
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200504704323589)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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