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Çѱ¹Áö¹Ý°øÇÐȸ / v.16, no.4, 2000³â, pp.95-105
Æò¸éº¯Çü·ü¾ÐÃà½ÃÇè¿¡ ÀÇÇÑ °¢Á¾ ¸ð·¡ÀÇ °­µµ.º¯ÇüƯ¼ºÀÇ À̹漺(III) -Àü´Üº¯Çü Ư¼º-
( Anisotropy in Strength and Deformation Properties of a Variety of Sands by Plane Strain Compression Tests(Part III) -Shear Deformation Characteristics- )
¹ÚÃá½Ä;Ȳ¼ºÃá;ÀåÁ¤¿í; Á¤È¸¿ø, â¿ø´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, °æÁÖ´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ½Ã½ºÅÛ°øÇкÎ;Á¤È¸¿ø, ûÁÖ´ëÇб³ °ø°ú´ëÇÐ ÀÚ¿ø°øÇаú;
 
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°øÁß³«ÇϹý¿¡ ÀÇÇØ ¸¸µç µî¹æ¾Ð¹Ð ¸ð·¡°ø½Ãü¸¦ ¹Ì¼Òº¯Çü·ü ÃøÁ¤ÀåÄ¡¸¦ »ç¿ëÇÑ Æò¸éº¯Çü·ü¾ÐÃà½ÃÇèÀ» ½Ç½ÃÇÏ¿© ¹Ì¼Òº¯Çü·ü¿¡¼­ ÆÄ±«ÈıîÁöÀÇ Àü´Ü°­¼º°è¼ö¿¡ ´ëÇÑ À̹漺À» ¿¬±¸ÇÏ¿´´Ù. ¼¼°è°¢±¹ÀÇ ÁÖ¿ä ¿¬±¸±â°ü¿¡¼­ »ç¿ëµÇ°í ÀÖ´Â 7Á¾·ùÀÇ ¿¬±¸¿ë Ç¥ÁØ»ç °ø½Ãü¸¦ ¸âºê·¹ÀÎÀÇ °üÀÔ¿¡ ÀÇÇÑ ¿ÀÂ÷¿Í º¯À§¸¦ ¿ÜºÎ¿¡¼­ ÃøÁ¤ÇÔÀ¸·Î ÇÏ¿© »ý±â´Â ¿ÀÂ÷(bedding error)µîÀÇ ¿µÇâÀ» Á¦°ÅÇÏ¿© ÃøÁ¤ÇÑ ÃÖ´ëÁÖÀÀ·Â¹æÇâÀÇ º¯Çü·ü°ú ÃÖ¼ÒÁÖÀÀ·Â¹æÇâÀÇ º¯Çü·üÀ» °¢°¢ 0.0001%¿¡¼­ 10%±îÁö ³ÐÀº ¹üÀ§¿¡ °ÉÄ£ ÀÀ·Â-º¯Çü·ü °ü°è¸¦ ¾ò¾ú´Ù. ±× °á°ú ÃÖ´ëÀü´Ü°­¼º°è¼ö Gmax´Â ÅðÀû¸é°ú ÃÖ´ëÁÖÀÀ·Â $sigma$1ÀÌ ÀÌ·ç´Â °¢µµ $delta$¿¡ °ü°è¾øÀÌ ÀÏÁ¤ÇÏ¿´´Ù. ±×·¯³ª Á¤±ÔÈ­ÇÑ Gmax´Â ¸ð·¡ÀÇ Á¾·ù¿¡ µû¶ó ´Þ¶ú´Ù. ¶Ç Àü´Ü°­¼º°è¼öÀÇ º¯Çü·ü ¼öÁذú ÀÀ·Â ¼öÁØ¿¡ ´ëÇÑ ÀÇÁ¸¼ºÀº $delta$°¡ °¨¼ÒÇÔ¿¡ µû¶ó Áõ°¡ÇÏ¿´´Ù.
Anisotropy of stiffiness, from extremely small strains to post-failure strains, of isotropically consolidated air-pulviated sands in plane strain compression was studied by using the newly developed instrumentation for small strain measurements. Seven types of sand of the world-wide origins were tested, which have been extensively used for research purposes. Stress-strain relationships for a wide range of strain from about 0.0001% to 10% were obtained with measuring axial and lateral strains locally free from the effects of bedding and membrane penetration errors at the specimen boundaries. It was found that the maximum shear modulus Gmax was irrespective of the angle $delta$of the $sigma$1 direction relative to the bedding plane. However, the normalized Gmax was varied with the types of sand. Furthermore, the dependency of the strain and stress level on the stiffness increased as decreased.
 
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Small strain;Stress-strain relationship;Shear modulus;Anisotropy;Sands;Plane strain compresstion;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.16, no.4, 2000³â, pp.95-105
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920441367)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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