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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.229-238
¾Ï¼®ÀÇ Àý¸®¸é °ÅÄ¥±â Á¤·®È­ ±â¹ý °³¹ßÀ» ÅëÇÑ Àý¸®¸é Àü´Ü°­µµ Ư¼º ºÐ¼®
( Analysis fo the Rock Joint Strength Characteristics Using New Rock Joint Roughness Quantification Method )
ÀÌÀθð;È«Àº¼ö;¹è¼®ÀÏ;À̼®¿ø; °í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;Ææ½Çº£´Ï¾Æ ÁÖ¸³´ëÇб³ Åä¸ñȯ°æ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸ºÎ;
 
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º» ¿¬±¸¿¡¼­´Â Àý¸®¸é °ÅÄ¥±â¸¦ Á¤·®ÀûÀ¸·Î »êÃâÇϱâ À§ÇÏ¿© Ç¥¸é °ÅÄ¥±â °è¼ö, Rs¸¦ ÀÌ¿ëÇÑ ÃøÁ¤¹æ¹ýÀ» Á¦¾ÈÇϰí, À̸¦ ¹ÙÅÁÀ¸·Î Àý¸®¸é °ÅÄ¥±â°¡ Àý¸®¸é Àü´Ü°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¦½ÃÇÏ¿´´Ù. Á¦½ÃµÈ Rs¸¦ ÀÌ¿ëÇÏ¿© »õ·Î¿î Àý¸®¸é Àü´Ü°­µµ ¸ðµ¨À» Á¦¾ÈÇÏ¿´´Ù. ¿¬±¸ °á°ú, Ç¥¸é °ÅÄ¥±â °è¼öÀÎ Rs´Â ¾Ï¹ÝÀÇ Àý¸®¸é °ÅÄ¥±â¸¦ Á¤·®ÀûÀ¸·Î Ç¥ÇöÇÒ ¼ö ÀÖ´Â À¯¿ëÇÑ ¹æ¹ýÀÌ µÉ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. Rs¿¡ ÀÇÇÑ ¾ÏÄÚ¾Æ ±Ô¸ðÀÇ Àý¸®¸é °ÅÄ¥±â ÃøÁ¤¿¡´Â ÃÖ´ë ÃøÁ¤°£°ÝÀ¸·Î 2mm, ÃÖ¼Ò ÃøÁ¤ ±æÀÌ·Î 5cm°¡ Àû´çÇϳª, À̸¦ ´ë±Ô¸ðÀÇ ÇöÀå Àý¸®¸é¿¡ È®´ë Àû¿ëÇϱâ À§Çؼ­´Â º¯µ¿±Ô¸ð(scale of fluctuation), $delta_u$¸¦ µµÀÔÇÏ¿©¾ß ÇÑ´Ù. Àý¸®¸é °ÅÄ¥±â°¡ ÀÛÀº °æ¿ì, Àü´Ü°­µµ´Â Àý¸®¸é¿¡¼­ÀÇ ¹Ì²ô·¯ÁüÀ¸·Î À¯¹ßµÇ¾úÀ¸³ª, °ÅÄ£ Àý¸®¸é¿¡¼­ÀÇ Àü´Ü°­µµ´Â °ÅÄ¥±âÀÇ ÀϺκÐÀÌ ÆÄ±«µÊÀ¸·Î ÀÎÇÏ¿© ¹ß»ýµÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
This paper introduces the surface roughness parameter, Rs to the characterization of joint roughness and quantitatively illustrates the influence of joint roughness on the joint shear strength. A new peak shear strength criterion for rock joints using Rs is suggested. The results show that the surface roughness parameter, Rs can appropriately reflect the degree of roughness for the rock joint surfaces tested in this study A measuring interval of 2mm and profile length of 5cm can be used to characterize the joint roughness of the rock core size surfaces; however, the scale of fluctuation, $delta_alpha$ should be considered to extend the surface roughness parameter, Rs to the large-scale field rock joint surfaces. For the smooth joint roughness, sliding of the rock cores is the principal shear mechanism; however, the breakage of roughness from the rock cores is inferred for rougher joint roughness.
 
Ű¿öµå
Joint roughness;Joint shear strength;Joint shear test;JRC;Surface roughness parameter;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.229-238
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921342107)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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