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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.4, 1998³â, pp.33-46
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Æò¸éº¯Çü·ü¾ÐÃà½ÃÇè¿¡ ÀÇÇÑ °¢Á¾ ¸ð·¡ÀÇ °µµ.º¯ÇüƯ¼ºÀÇ À̹漺(II)-¹Ì¼Òº¯Çü·ü¿¡¼ÀÇ º¯ÇüƯ¼º À̹漺
( Anisotropy in Strength and Deformation Properties of a Variety of Sands by Plane Strain Compression Tests(Part II) -Deformation Characteristics at Extremely Small Strain Level ) |
| ¹ÚÃá½Ä;ÀåÁ¤¿í; Á¤È¸¿ø, â¿ø´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, ûÁÖ´ëÇб³ °ø°ú´ëÇÐ ÀÚ¿ø°øÇаú;
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| °øÁß³«ÇϹý¿¡ ÀÇÇØ ¸¸µç µî¹æ¾Ð¹Ð ¸ð·¡°ø½Ã ü¸¦ ¹Ì¼Òº¯Çü·ü ÃøÁ¤ÀåÄ¡¸¦ »ç¿ëÇÑ Æò¸éº¯Çü·ü¾ÐÃà ½ÃÇèÀ» ½Ç½ÃÇÏ¿© ¹Ì¼Òº¯Çü·ü¿¡¼ ÆÄ±« ÈıîÁöÀÇ °¼º·ü¿¡ ´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´ë ¿µ·ü $E_{max}$Àº ÅðÀû¸é°ú ÃÖ´ëÁÖÀÀ·Â $delta_1$ÀÌ ÀÌ·ç´Â °¢µµ¿¡ °ü°è¾øÀÌ ÀÏÁ¤ÇÏ¿´´Ù. ±×·¯³ª, Á¤±ÔÈÇÑ$E_{max}$Àº ¸ð·¡ÀÇ Á¾·ù¿¡ µû¶ó ´Þ¶ú´Ù. ¶Ç, °¼º·üÀÇ º¯Çü·ü ¼öÁذú ÀÀ·Â ¼öÁØ¿¡ ´ëÇÑ ÀÇÁ¸¼ºÀº $delta$°¡ °¨¼ÒÇÔ¿¡ µû¶ó Áõ°¡ÇÏ¿´´Ù. |
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| Anisotropy of stiffness, from extremely small strains to post-failure strains, of isotropically consolidated air-pluviated 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 at the specimen boundaries. It was found that the maximum Young's modulus $E_{max}$ was irrespective of the angle $delta$ of the $delta_1$ direction relative to the bedding plane. However, the normalized$ E_{max}$ was varied with the types of sand. Furthermore, the dependency of the strain and stress level on the stiffness was increased as $delta$ decreased. |
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| Ű¿öµå |
| Small strain;Stress-strain relationship;Youngs modulus;Anisotropy;Sands;Plane strain comperssion; |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.4, 1998³â, pp.33-46
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448219)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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