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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.8, 2009³â, pp.5-21
¼öÁß¿¡¼­ Àû¿ë°¡´ÉÇÑ ´ë±¸°æ ÇöÀ埼³¸»¶ÒÀÇ ±¼Âø°ø º®¸é°ÅÄ¥±â ÃøÁ¤ÀåÄ¡ÀÇ º¸Á¤¿¡ °üÇÑ ¿¬±¸
( Calibration of Borehole Roughness Measurement System for Large Diameter Drilled Shafts in Water )
¹ÚºÀ±Ù;³²¹®¼®;ÃÖ¿ë±Ô; (ÁÖ)¹é°æÁö¾Ø¾¾;Çѱ¹µµ·Î°ø»ç µµ·Î±³Å뿬±¸¿ø;°æ¼º´ëÇб³ °Ç¼³.ȯ°æ°øÇкÎ;
 
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¾Ï¹Ý¿¡ ±ÙÀÔµÈ ÇöÀ埼³¸»¶ÒÀÇ Áָ鸶Âû·Â¿¡ ´ëÇÑ ÃÖ±ÙÀÇ ¿¬±¸°á°ú¿¡ µû¸£¸é Áָ鸶Âû·ÂÀº ¾Ï¼®ÀÇ ÀÏÃà¾ÐÃà°­µµ ¿Ü¿¡ ±¼Âø¸éÀÇ °ÅÄ¥±â, ¾Ï¹ÝÀÇ Àç·áƯ¼º, Ãʱ⠼öÁ÷À½·Â, ¸»¶ÒÀÇ Á÷°æ, ¾Ï¹ÝÀÇ Àý¸® ¹× dzȭµµ µî¿¡ Å©°Ô ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î º¸°íµÇ¾î ÀÖ´Ù. Áö±Ý±îÁö °³¹ßµÈ ±¼Âø¸é °ÅÄ¥±â ½Ã½ºÅÛµéÀº °ø±â Áß¿¡¼­¸¸ ÃøÁ¤°¡´ÉÇϹǷΠÇöÀåÀÇ ±¼Âø°ø³»¿¡¼­ Á÷Á¢ ÃøÁ¤ÇÏ´Â °ÍÀº ºÒ°¡´ÉÇÏ¿´´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­´Â ¼öÁß¿¡¼­ »ç¿ë°¡´ÉÇÑ ±¼Âø°ø º®¸é°ÅÄ¥±â ÃøÁ¤ ½Ã½ºÅÛ(BKS-LRPS)À» °³¹ßÇÏ¿´À¸¸ç, Ư¼ö Á¦ÀÛµÈ º¸Á¤ÀåÄ¡¸¦ ÅëÇÏ¿© ¿©·¯ °¡Áö °æ¿ì¿¡ ´ëÇÑ °ËÁõÀ» ¼öÇàÇÏ¿´´Ù. ¿¬±¸°á°ú¿¡ ÀÇÇϸé, °³¹ßµÈ BKS-LRPS´Â ÀåÄ¡Á¦ÀÛÁ¶°Ç ¹× ÇöÀåÁ¶°ÇÀ» ¹Ý¿µÇϵµ·Ï °èȹµÈ °ËÁõÁ¶°Çµé¿¡ ´ëÇÏ¿© À¯È¿ÃøÁ¤¿µ¿ªÀ» Á¦½ÃÇÒ ¼ö ÀÖ¾ú´Ù.
Based on recent studies on rock socketed drilled shafts, it was found that the side resistance of rock socketed drilled shafts is affected by unconfined compressive strength of rock, socket roughness, rock types and joints, and initial normal stress. Especially, the socket roughness is affected by rock types and joints, drilling methods, and diameters. Since existing roughness measurement systems could be conducted only in the air, a new roughness measurement system, which can measure rock socket roughness in the air and also in the water, is needed. However, the development of new roughness measurement system fur civil engineers has been faced with difficulties of electrical applications. In this study, the laboratory verification system far BKS-LRPS (Backyoung-KyungSung Laser Roughness Profiling System) was developed, which can be applied both in the water and air. Based on the laboratory verification, it was found that the improved BKS-LRPS could define effective measurement distances for the conditions reflecting the apparatus and in-situ situations.
 
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BKS-LRPS;Effective measurement distance;Rock socketed drilled shafts;Side friction;Side roughness;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.8, 2009³â, pp.5-21
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200931559903662)
¾ð¾î : Çѱ¹¾î
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