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Çѱ¹µµ·ÎÇÐȸ / v.5, no.1, 2003³â, pp.35-45
Æ÷À嵿Àû°üÀÔ½ÃÇè±â(PDCP)¿¡ ÀÇÇÑ º¸Á¶±âÃþ ¹× ³ë»ó ÁöÁö·Â ÃøÁ¤
( Estimation of Bearing Capacity of Subbase and Subgrade Using Pavement Dynamic Cone Penetrometer )
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º» ¿¬±¸´Â µµ·Î¸¦ ¼³°è, °Ç¼³, À¯Áö°ü¸®ÇÏ´Â µµ·Î±â¼úÀÚµéÀÌ ½ÇÁ¦ µµ·ÎÀÇ °Ç¼³°ú À¯Áö°ü¸®°¡ ÀÌ·ç¾îÁö°í ÀÖ´Â ÇöÀå¿¡¼­, µµ·Î¸¦ ±¸¼ºÇϰí ÀÖ´Â ±âÃþ º¸Á¶±âÃþ ¼±ÅÃÃþ. ³ë»ó, ³ëü µîÀÇ ÇöÀå°­µµ¼ººÐÀ» PDCP(Pavement Dynamic Cone Penetrometer)¶ó´Â Á¶ÀÛÀÌ ¿ëÀÌÇÏ°í ½ÇÇè°á°ú ÇØ¼®ÀÌ °£´ÜÇϸ鼭 ½Å·Ú¼º ÀÖ´Â ±â±¸¸¦ »ç¿ëÇÏ¿© ÇöÀå¿¡¼­ÀÇ ÃøÁ¤ÀÌ °¡´ÉÇϵµ·Ï ÇϰíÀÚ ¼öÇàÀÌ µÇ¾ú´Ù. ÀÌ¿Í °°Àº ¸ñÀûÀ» ¼öÇàÇϱâ À§ÇÏ¿© ¸ÕÀú ÇöÀå¿¡¼­ Á¶¸³ ¹× À̵¿ÀÌ ¿ëÀÌÇϵµ·Ï Æ÷Àå°üÀÔ½ÃÇè±â(PDCP)¸¦ Á¦ÀÛÇÏ¿´À¸¸ç, µ¿ÀÏÇÑ ½Ã·á¿¡ CBR½ÃÇè ¹× PDCP °üÀÔ½ÃÇèÀ» ½ÃÇàÇϱâ À§ÇÏ¿© ±âÁ¸ÀÇ Á÷°æ 15cm CBR ¸ôµå¸¦ ¿©·¯°³ ¿¬°áÇÏ¿© ³ôÀ̸¦ Ű¿î Ư¼ö CBR ¸ôµåµµ µ¿½Ã¿¡ Á¦ÀÛÇÏ¿´´Ù. ½ÇÇè½Ç¿¡¼­ ´Ù¾çÇÑ ½Ã·á¿¡ ´ëÇÏ¿© ´ÙÁü½ÃÇèÀ» ½Ç½ÃÇÏ¿© ÃÖÀûÇÔ¼öºñ ¹× ÃÖ´ë °ÇÁ¶¹Ðµµ¸¦ ±¸ÇÑ ÈÄ, °¢°¢ B´ÙÁü ¹× D´ÙÁüÀ¸·Î ´ÙÁ® PDCP °üÀÔ½ÃÇè ¹× CBR ½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ÀÌ¿Í °°Àº ½ÃÇè °á°ú ½º¹« °³ÀÇ CBR °ª°ú °üÀÔÁö¼ö¿ÍÀÇ »ó°ü°ü°è½ÄÀ» ±¸ÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ÇØ¼®Àû ÀÎ ¹æ¹ýÀ¸·Î PDCP ½ÃÇèÀÇ °á°úÄ¡ÀÎ °üÀÔÁö¼ö·ÎºÎÅÍ Åº¼º°è¼ö¸¦ »êÁ¤ÇÏ´Â ¹æ¹ýÀ» ¼Ò°³ÇÏ¿´´Ù. Çö´Ü°è¿¡¼­´Â ´Ù¾çÇÑ ÅäÁúºÐ·ù¿¡ ´ëÇÑ °üÀÔÁö¼ö¿Í ź¼º°è¼ö »êÁ¤½ÄÀÌ Á¦½ÃµÇ¾î ÀÖÁö ¾Ê¾Æ Á¤È®ÇÑ Åº¼º°è¼ö°ªÀ» ±¸ÇÏ´Â µ¥¿¡´Â ¾î·Á¿òÀÌ ÀÖÁö¸¸, ÃßÈÄ º¸´Ù ´Ù¾çÇÑ ÅäÁúºÐ·ù¿¡ ´ëÇÑ °üÀÔÁö¼ö¿Í ź¼º°è¼ö »êÁ¤½ÄÀ» ¾ò´Â ³ë·Â ÀÌ ½ÃÇàµÈ´Ù¸é º¸´Ù Á¤È®ÇÑ Åº¼º°è¼ö°ª ¹× ȸº¹Åº¼º°è¼ö($M_R$)°ªµµ ±¸ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÈ´Ù.
This paper presents a theoretical approach for estimation of CBR-value of subbase course and subgrade using a portable pavement dynamic cone penetrometer(PDCP). The PDCP used in this paper was based on a design from South Africa and extensive studies by Kleyn(1982) and more recently by Liveneh and Ishai(1987) and Chua(1988). To date, California Bearing Ratio[CBR] value was studied mainly for application of pavement structural design. This study was initiated to develop a method of obtaining the in situ CBR-values of subbase and subgrade for the structural evaluation of pavements in the swift and inexpensive manner. PDCP tests were implemented at 20 different kinds of soil samples in the lab and test results were analysed by a theoretical approach introduced. The procedure presented provides acceptable and promising results.
 
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µ¿ÀûÆ÷Àå°üÀÔ½ÃÇè±â;ź¼º°è¼ö;pavement dynamic cone penetrometer;CBR;elastic modulus;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.5, no.1, 2003³â, pp.35-45
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200315637507981)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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