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Çѱ¹Áö¹Ý°øÇÐȸ / v.10, no.4, 1994³â, pp.167-180
»çÀü¾Ð¹ÐµÈ Æ÷È­Á¡ÅäÀÇ ÀÀ·ÂÀ̷°ú 2Â÷¾Ð¹Ð¿¡ °üÇÑ ¿¬±¸
( A Study on the Stress History and Secondary Compression of Saturated Clays Subjected to Precompression )
±èÇüÁÖ; Á¤È¸¿ø, ±º»ê´ëÇб³ °ø°ú´ëÇÐ ÇØ¾ç°øÇаú;
 
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»çÀü¾Ð¹ÐµÈ Æ÷È­Á¡ÅäÀÇ ÀÀ·ÂÀÌ·ÂÀÌ 2Â÷¾Ð¹ÐƯ¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ ¹× Bjerrum¸ðµ¨ÀÌ °ú¾Ð¹ÐÁ¡ÅäÀÇ 2Â÷¾Ð¹ÐħÇÏÃßÁ¤¿¡ Àû¿ë°¡´ÉÇÑÁö¸¦ ½ÇÇèÀûÀ¸·Î ÆÄ¾ÇÇϱâ À§ÇÏ¿© À缺ÇüÁ¡Å並 ÀÌ¿ëÇÏ¿© ÀçÇÏ-Á¦ÇÏ ¹× ÀçÇÏ-Á¦ÇÏ-ÀçÀçÇÏ ÀÀ·ÂÀÌ·ÂÀÇ Á¶°Ç¿¡¼­ ÀÏ·ÃÀÇ Àå±â¾Ð¹Ð½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÇÇè°á°ú¿¡ ÀÇÇÏ¸é °ú¾Ð¹ÐÁ¡ÅäÀÇ 2Â÷¾Ð¹ÐħÇÏ´Â Àü¹ÝºÎ¿¡¼­ ÀÀ·ÂÀÌ·ÂÀÇ ¿µÇâÀ» ¹Þ°í Àü¹ÝºÎÀÇ 2Â÷¾Ð¹Ð°è¼ö CnÀº OCR(¼±Çà ¾Ð¹ÐÇÏÁß PcyÀçÀçÇÏÇÏÁß Pr), ÃÖ´ë OCR(¼±Çà¾Ð¹ÐÇÏÁß PcyÁ¦ ÇϽÃÀÇ ÇÏÁß Pu)°ú,Á¦ÇϽ𣿡 ÀÇÁ¸ÇÏ¸ç °ú¾Ð¹Ðºñ Áõ°¡¿¡ µû¶ó °¨¼ÒÇÑ´Ù. ¶ÇÇÑ 2Â÷¾Ð¹ÐÈĹݺΠÀÇ 2Â÷¾Ð¹Ð°è¼ö C.2´Â OCRÀÇ ¿µÇâÀ» ¹ÞÀ¸¸ç °ú¾Ð¹Ðºñ Áõ°¡¿¡ µû¶ó °¨¼ÒÇÑ´Ù. ÃÖÁ¾ÀûÀ¸·Î ½ÇÇè °á°ú¿Í Bjerrum¸ðµ¨À» ºñ±³ºÐ¼®ÇÑ °á°ú ÀÓÀÇ ÀÀ·ÂÀ̷¹üÀ§¸¦ ¹þ¾î³ª¸é °ú¾Ð¹ÐÁ¡Åä¿¡¼­ Bjerrum¸ðµ¨ÀÇ Àû¿ëÀº °¡´ÉÇÏ´Ù.
A series of long term consolidation tests were conducted under loading -unloading and loading(pc) -unloading(p.) -reloading(p,) conditions using reconstituted clay in order to investigate the effect of stress history on secondary consolidation characteristics and the applicability of the secondary consolidation model suggested by Bjerrum to overconsolidated clays. According to the test results, the secondary compression settlement affected by the stress history in the first half of experimental period and the coefficient of secondary compression, C¡¥¡¥ is dependent on overconsolidation ratio, OCR(p,1 p.), maBium OCR (p./p.), and unloading duration time. Moreover the coefficient of secondary consolidation in the latter half of experimental period Cn is mainly affected by OCR and it gradually reduces with OCR increment. Finally the comparison of the experimental results with the Bjerrum model indicates that the Bjerrum model can be applied beyond certain range of stress history in the overconsolidated clay.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.10, no.4, 1994³â, pp.167-180
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411920445778)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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