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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.2, 2008³â, pp.77-86
ÃʼÒÇü ¸¶ÀÌÅ©·ÎÄÜ °üÀÔ½ÃÇè±âÀÇ °³¹ß ¹× Àû¿ë
( Development and Application of Ultra Small Micro-Cone Penetrometer )
ÀÌÁ¾¼·;½Åµ¿Çö;À±Çü±¸;ÀÌ¿ìÁø; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;
 
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ÈëÀÇ ±³¶õ¿µ¿ª°ú ÃøÁ¤°ªÀº °üÀÔ½ÃÇè±âÀÇ Å©±â¿¡ ¿µÇâÀ» ¹Þ´Â´Ù. °üÀÔ±âÀÇ Å©±â°¡ ÀÛÀ»¼ö·Ï ´õ ±¹ºÎÀûÀÎ °ªÀ» ¾òÀ» ¼ö ÀÖ´Ù. °üÀÔ½ÃÇè ½Ã ÈëÀÇ ±³¶õÀ» ÃÖ¼ÒÈ­Çϸ鼭 ÈëÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇÏ¿© ±Ø¼ÒÇü ¸¶ÀÌÅ©·ÎÄÜ(¿Ü°æ 5mm)À» ¼³°è ¹× Á¦ÀÛÇÏ¿´´Ù. ¼±´ÜÀúÇ×·ÂÀº ¸¶ÀÌÅ©·ÎÄÜ ¼±´ÜºÎ¿¡ ¼³Ä¡µÈ º¯Çü·ü°è¸¦ ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. »Ó¸¸ ¾Æ´Ï¶ó ¼±´Ü ÀúÇ×·ÂÀ¸·ÎºÎÅÍ ¸¶ÂûÀúÇ×·Â ¼ººÐÀ» È¿°úÀûÀ¸·Î Á¦°ÅÇϱâ À§ÇÏ¿© ÀÌÁß°ü Çü½ÄÀÇ ¸¶Âû ½½¸®ºê¸¦ äÅÃÇÏ¿´´Ù. ¼³°è ½Ã º¯Çü·ü°èÀÇ ¼³Ä¡, ȸ·Î±¸¼º, °üÀԽýºÅÛ, °üÀÔ¼Óµµ, ÃøÁ¤·ü, ÀÛµ¿ ¿Âµµ, ±×¸®°í calibration °úÁ¤ÀÌ °í·ÁµÇ¾ú´Ù. Á¡ÅäÀÇ °æ°è¸é, Á¡Åä-¸ð·¡Áö¹ÝÀÇ °æ°è¸éÀ» ¸¶ÀÌÅ©·ÎÄÜÀ» Àû¿ëÇÔÀ¸·Î½á È¿°úÀûÀ¸·Î ã¾Æ ³¾ ¼ö ÀÖ¾ú´Ù. »Ó¸¸ ¾Æ´Ï¶ó, ¸¶ÀÌÅ©·Î Äܰú Á÷°æ 16mmÀÇ ¹Ì´Ï¾îó ÄÜÀ» ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÑ ¼±´ÜÀúÇ×·ÂÀÌ ¸Å¿ì À¯»çÇÏÁö¸¸, ¸¶ÀÌÅ©·Î ÄÜÀÇ ÇØ»óµµ°¡ ¸Å¿ì ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º» ³í¹®Àº ¸¶ÀÌÅ©·Î ÄÜÀÌ ¸Å¿ì ³ôÀº ÇØ»óµµ ±×¸®°í ÁÖº¯Áö¹ÝÀÇ º¯ÇüÀ» ÃÖ¼ÒÈ­Çϸ鼭 ÈëÀÇ °æ°è¸éÀ» È¿°úÀûÀ¸·Î °¨ÁöÇÒ ¼ö ÀÖÀ½À» º¸¿©ÁØ´Ù.
The disturbance zone and measured values are affected by the size of the penetrometer. The local value may be measured by the smaller penetrometer. An ultra small Micro-Cone penetrometer (5mm in outer diameter) is designed and manufactured to characterize soil properties with minimum disturbance during penetration tests. The tip resistance is measured by using stain gauges attached near the Micro-Cone. In addition, the friction sleeve is adopted to effectively remove the skin friction from the tip resistance. Design concern includes the installation of stain gauges, circuits, penetration systems, penetration rate, sampling rate, operating temperature, and calibration. Application tests show that the clay interface, and the soil layers consisting of clay and sand are clearly detected by the Micro-Cone. Furthermore, the cone tip resistances measured by the Micro-Cone and the miniature cone (16mm in outer diameter) are similar. Note the resolution is much higher in the Micro-Cone. This study shows that the Micro-Cone may effectively detect the soil interface with high resolution, and with minimum disturbance.
 
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Calibration Chamber;Cone tip resistance;Interface detection;Layer detection;Liquefaction;Miniature cone;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.2, 2008³â, pp.77-86
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814364033556)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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