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Çѱ¹µµ·ÎÇÐȸ / v.6, no.2, 2004³â, pp.25-36
°ø³»ÀçÇϽÃÇè¿¡ ÀÇÇÑ Æ÷ÀåÇϺαâÃÊ °­¼ºµµ Æò°¡
( Evaluation of Subgrade Stiffness using Pressuremeter Test )
ÀÓÀ¯Áø;´©¿£Æ¼¿£ÇÏÀÌ;Àå´ö¼ø; ¹èÀç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;¹èÀç´ëÇб³ ´ëÇпø Åä¸ñȯ°æ°øÇаú;´ëÀü±¤¿ª½Ã °¨»ç°ü½Ç(Àü ¹èÀç´ëÇб³ ´ëÇпø);
 
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³ë»ó ¹× º¸Á¶±âÃþ µî Æ÷ÀåÇϺαâÃÊÀÇ °­¼ºµµ Æò°¡¸¦ À§ÇØ °ø³»ÀçÇϽÃÇèÀÌ È¿°úÀûÀ¸·Î »ç¿ëµÉ ¼ö ÀÖ´Ù. ÇöÀç ±¹³»¿¡¼­ Æ÷ÀåÇϺαâÃÊ °­¼ºµµÀÇ Æò°¡¸¦ À§ÇØ »ç¿ëµÇ´Â °¡Àå ½Ç¿ëÀûÀÎ ¹æ¹ýÀº ÆòÆÇÀçÇϽÃÇè (PBT)°ú CBR ½ÃÇèÀ» µé ¼ö ÀÖ´Ù. ±×·¯³ª ÀÌ ¹æ¹ýµéÀº ½ÃÇè¹ý ÀÚü°¡ ¾È°íÀÖ´Â ºÒÇÕ¸®¼º°ú °á°úÄ¡ÀÇ º¯È­°¡ Å©´Ù´Â ´ÜÁ¡À¸·Î ÀÎÇØ °á°úÀÇ ½Å·Úµµ°¡ ¶³¾îÁø´Ù. ÁÖ ¿¬±¸¿¡¼­´Â °ø³»ÀçÇϽÃÇè±â¸¦ »ç¿ëÇÑ Æ÷ÀåÇϺαâÃÊ °­¼ºµµÀÇ Æò°¡¹æ¹ý°ú ½ÃÇèÀýÂ÷ÀÇ °³¹ß °¡´É¼ºÀ» °ËÅäÇÏ¿´´Ù. °³¹ßµÈ ½ÃÇè¹ýÀÇ Æò°¡¸¦ À§ÇØ ÇöÀå ÆòÆÇÀçÇϽÃÇè °á°ú¿Í ºñ±³ÇÏ¿´À¸¸ç À̷κÎÅÍ °ø³»ÀçÇϽÃÇè ÀçÀçÇÏ Åº¼º°è¼ö($E_R$)¿Í ÆòÆÇÀçÇϽÃÇè (PBT) ¼öÁ÷Áö¹Ý ¹Ý·Â°è¼ö k¿ÍÀÇ À¯È¿ÇÑ »ó°üµµ¸¦ ¼³Á¤ÇÒ ¼ö ÀÖ¾ú´Ù.
The pressuremeter test can be used as an effective tool for evaluating stiffness of lower pavement layers including subgrade and subbase. At present, the most practical and applicable methods for evaluation of the stiffness of the subgrade and subbase are PBT and CBR in Korea. However, these methods have inherent drawbacks and large variabilities of test results themselves. In this study, an evaluation method and a test procedure that can be used for decision of pavement stiffness using pressuremeter were developed. The obtained results representing stiffness of the subgrade and subbase can replace PBT's soil reaction value k and CBR in design methods. It is found that the developed procedure based on the pressuremeter can provide an effective correaltion between the PBT's soil reaction value k and PMT's reloading modulus ($E_R$).
 
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°ø³»ÀçÇϽÃÇè;³ë»ó;ź¼º°è¼ö;Æ÷ÀåÇϺαâÃÊ;pressuremeter test;subgrade;stiffness;plate bearing test;CBR;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.6, no.2, 2004³â, pp.25-36
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415637508281)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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