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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.4, 1999³â, pp.247-260
ÃøÁ¤¹æÇâ¿¡ µû¸¥ Ç¥¸é °ÅÄ¥À½ Á¤µµÀÇ º¯È­ ¾ç»ó
( Directional Variations in Surface Roughness Determinations )
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¿©·¯ ¿¬±¸µéÀ» ÅëÇÏ¿© Ç¥¸é °ÅÄ¥À½ Á¤µµ°¡ Á¢Ã˸é Àü´Ü·Â¿¡ ¸Å¿ì Áß¿äÇÔÀÌ ¹àÇôÁ³À¸¸ç, µû¶ó¼­ ±× ¿ªÇÒÀ» ÃæºÐÈ÷ ÀÌÇØÇϱâ À§Çؼ­´Â Ç¥¸é °ÅÄ¥À½ Á¤µµ°¡ Á¤È®È÷ Á¤·®È­ µÇ¾îÁ®¾ß ÇÑ´Ù. ÇöÀç±îÁö ÀÌ·¯ÇÑ Ç¥¸é °ÅÄ¥À½ Á¤µµ¸¦ ³ªÅ¸³»´Â Ç¥¸é °ÅÄ¥±â ¸Å°³º¯¼ö´Â ´ëºÎºÐ ¹æÇ⼺À» °í·ÁÇÏÁö ¾ÊÀº 3Â÷¿øÀûÀÎ trisector¿¡¼­ ÃøÁ¤µÇ¾î ¿Ô°í, ±× °á°ú´Â Á¤ÀûÀΠǥ¸éÀ» ´ëÇ¥ÇÏ´Â °ªÀ¸·Î Àû´çÇÏ¿´´Ù. ±×·¯³ª, Ç¥¸é °ÅÄ¥±â ¸Å°³º¯¼ö¿Í Á¢Ã˸é Àü´Ü·Â°ú °°ÀÌ ¹æÇ⼺À» °®´Â ¸Å°³º¯¼ö¿ÍÀÇ »ó°ü°ü°è¸¦ Á¶»çÇϱâ À§Çؼ­´Â Àü´Ü¹æÇâ°ú µ¿ÀÏÇÑ ¹æÇâÀ¸·Î ÃøÁ¤µÈ 2Â÷¿øÀûÀΠǥ¸é °ÅÄ¥À½ °ªÀÌ ´õ¿í´õ ÇÕ¸®ÀûÀÎ ´ëÇ¥ °ªÀÌ µÉ ¼ö ÀÖ´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­´Â Àü´Ü¹æÇâÀ» °í·ÁÇÑ Ç¥¸é °ÅÄ¥À½ Á¤µµ¸¦ ±¸ÇÒ ¼ö ÀÖ´Â »õ·Î¿î Ç¥¸é °ÅÄ¥±â ¸Å°³º¯¼ö¸¦ Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ ¹æÇ⼺ ¸Å°³º¯¼ö¿Í ±âÁ¸ÀÇ Ç¥¸é °ÅÄ¥±â ¸Å°³º¯¼ö¸¦ ºñ±³ ºÐ¼®ÇÔÀ¸·Î¼­, ¹æÇ⼺ ¸Å°³º¯¼ö¿Í ºñ ¹æÇ⼺ ¸Å°³º¯¼ö¿ÍÀÇ »ó°ü°ü°è¸¦ Á¶»çÇÏ¿´´Ù. Ç¥¸é °ÅÄ¥À½ Á¤µµ´Â µðÁöÅÐ À̹ÌÁö ºÐ¼® ½Ã½ºÅÛÀ» ÀÌ¿ëÇÑ Optical Profile Microscopy(OPM) ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. ±× °á°ú, º» ¿¬±¸¿¡¼­ ÃøÁ¤µÈ ¿©·¯ °¡Áö Ç¥¸é °ÅÄ¥±â ¸Å°³º¯¼ö´Â ÃøÁ¤°ª¿¡ À־ ºñ½ÁÇÑ °æÇâÀ» º¸¿©ÁÖ¾úÀ¸¸ç, µû¶ó¼­, ¼­·Î°£ÀÇ »ó°ü°ü°è°¡ ÁÁÀ½ÀÌ ¹àÇôÁ³´Ù. ¶ÇÇÑ Ç¥¸é °ÅÄ¥À½ Á¤µµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó, ºñ ¹æÇ⼺ÀÇ 3Â÷¿ø ¸Å°³º¯¼ö °ªÀÌ ¹æÇ⼺ÀÇ 2Â÷¿ø ¸Å°³º¯¼öº¸´Ù °è¼ÓÀûÀ¸·Î Áõ°¡ÇÏ´Â ¾ç»óÀÌ º¸¿©Á³´Ù.
It was found that surface roughness has a first-order effect on the interface shear strength and accordingly it should be accurately quantified if its role is to be properly understood. Most of the surface roughness parameters are based on the trisector approach (three dimensional parameter) which can provide a good measure of the surface roughness from a static perspective. However, if roughness is to be correlated with a directional sensitive parameter such as interface shear then a two dimensional parameter could be more meaningful if the roughness measurements are made parallel to the direction of shearing. In this paper, alternative roughness parameters which consider the direction of shearing are described. These directional parameters are compared with the existing roughness parameters, and the relationship between these directional and non-directional parameters are investigated. The surface roughness was quantified by using the Optical Profile Microscopy (OPM) method (Dove and Frost, 1996) based on the digital image analysis. The results showed that the various surface roughness parameters measured in this study exhibit similar trend of roughness values, so that, good relationships are obtained between these roughness parameters. As the surface roughness increases, the roughness values measured in trisector coupons are increasing higher than those measured in parallel coupons.
 
Ű¿öµå
Surface roughness;Geomembrane;Interface;Digital image analysis;Shear;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.4, 1999³â, pp.247-260
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749458)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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