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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.10, 2006³â, pp.55-67
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ÅØ»ç½º ÄÜ °üÀÔ½ÃÇèÀ» ÀÌ¿ëÇÑ IGM¿¡ ±ÙÀÔµÈ ÇöÀ埼³¸»¶ÒÀÇ ¼³°è
( Design of IGM Socketed Drilled Shafts Using Texas Cone Penetrometer Tests ) |
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| IGM(Intermediate Geomaterial)¿¡ ±ÙÀÔµÈ ÇöÀ埼³¸»¶ÒÀÇ ¼³°è¸¦ ¼öÇàÇϱâ À§Çؼ´Â ´ë»ó Áö¹ÝÀÇ °µµÆ¯¼ºÀ» ¾Ë¾Æ¾ß Çϰí, À̸¦ À§ÇØ IGM¿¡ ´ëÇÑ ÀÏÃàÀ̳ª »ïÃà µîÀÇ ¾ÐÃà°µµ½ÃÇèÀ» ¼öÇàÇÑ´Ù. ±×·¯³ª, ¼³°è ´ë»óÀÇ IGMÁö¹ÝÀÌ Ç³È°¡ µÈ °æ¿ì¿¡´Â ¾ÐÃà°µµ½ÃÇèÀ» ÅëÇÑ °µµÆ¯¼º ÆÄ¾ÇÀÌ Èûµé´Ù. ÀÌ·¯ÇÑ °æ¿ì¿¡´Â ¾ÐÃà°µµ½ÃÇèÀ» ´ëüÇÏ¿© IGMÁö¹ÝÀÇ °µµ Ư¼ºÀ» ÆÄ¾ÇÇÒ ¼ö ÀÖ´Â ¹æ¹ýµéÀÌ ÇÊ¿ä·Î ÇÑ´Ù. º» ¿¬±¸¿¡¼´Â ÇöÀç ÅØ»ç½ºÁÖ µµ·Î±¹(Texas Department of Transportation)¿¡¼ ¸»¶Ò±âÃÊÀÇ ¼³°èÀÎÀڷμ »ç¿ë ÁßÀÎ ÅØ»ç½º ÄÜ °üÀÔ½ÃÇè(Texas Cone Penetrometer Test)À» ÀÌ¿ëÇÏ¿© IGMÁö¹ÝÀÇ ¿ªÇÐÆ¯¼ºÀ» ÆÄ¾ÇÇÏ¿´´Ù. ±×¸®°í ¹Ì±¹ÀÇ ÅØ»ç½ºÁÖ Áö¿ª¿¡ ºÐÆ÷ÇÏ´Â IGMÁö¹ÝÀÎ ¼ÎÀÏ(Clay Shale)°ú ¼®È¸¾Ï(Limestone)À» ´ë»óÀ¸·Î ½ÃÇèÇöÀåÀ» ¼±ÅÃÇÏ¿´°í ¸»¶ÒÀçÇϽÃÇè°ú ÅØ»ç½º ÄÜ °üÀÔ½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. º» ¿¬±¸°á°ú¸¦ ¹ÙÅÁÀ¸·Î ÅØ»ç½º ÄÜ °üÀÔ½ÃÇè°ú IGM ±ÙÀÔ ÇöÀ埼³¸»¶ÒÀÇ Áָ鸶Âû·Â°ú ¼±´ÜÁöÁö·Â°úÀÇ »ó°ü°ü°è¸¦ Á¦½ÃÇÏ¿´´Ù. |
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| Modern methods for designing IGM(Intermediate Geomaterial) socketed drilled shafts require knowledge of the compressive strength and modulus of the IGM. However, the weathered IGMs at many sites prohibit the recovery of samples of sufficient length and integrity to test cores in either unconfined or triaxial compression tests. Since rational design procedures usually require values of compressive strength, surrogate methods must be employed to estimate the compressive strength of the IGM. A surrogate method considered in this study was Texas cone penetrometer tests which were performed at several sites in North Central Texas. Correlations of Texas cone penetrometer tests and compressive strengths of cores from these formations are provided in the paper. In order to develop the relationships between Texas cone penetrations and side and base resistance of IGM socketed drilled shafts, three filed load tests were conducted in the same sites. Based on the field study and literature reviews, a design method for IGM socketed drilled shafts using Texas cone penetration test was proposed. |
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| Base resistance;IGM socketed drilled shafts;Side resistance;Texas cone penetration test; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.10, 2006³â, pp.55-67
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623521015)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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