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Çѱ¹Áö¹Ý°øÇÐȸ / v.9, no.4, 1993³â, pp.65-82
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ºñƲ¸²Àü´Ü½ÃÇè¿¡ ÀÇÇÑ ¸ð·¡ÀÇ ÀÀ·Â -º¯Çü·ü °Åµ¿
( The Stress -Strain Behavior of Sand in Torsion Shear Tests ) |
| ³²Á¤¸¸;È«¿øÇ¥; Áß¾Ó´ëÇб³ ´ëÇпø, Åä¸ñ°øÇаú;Á¤È¸¿ø, Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| ÁÖÀÀ·ÂȸÀü½Ã ¸ð·¡ÀÇ ÀÀ·Â-º¯Çü·ü °Åµ¿À» Á¶»çÇϱâ À§ÇÏ¿© Santa MoniesÇØº¯ÀÇ ¸ð·¡¿¡ ´ë ÇÑ ºñƲ¸²Àü´Ü½ÃÇèÀÌ ¿©·¯°¡Áö ÀÀ·Â°æ·Î¿¡ ´ëÇØ ½Ç½ÃµÇ¾ú´Ù. ¸ð·¡¿¡ ´ëÇÑ ºñƲ¸²Àü´Ü½ÃÇè¿¡¼´Â Á¡Åä¿¡¼¿Í ´Þ¸® TorqueÀÇ ÀÛ¿ë¹æÇâÀ» ½Ã°è¹æÇâ°ú ¹Ý½Ã°è¹æÇâ ¸ðµÎ¿¡ ´ëÇØ ÀÛ¿ëÇÏ¿´À¸¸ç, °ø½ÃüÀÇ Ãø¹æº¯Çü·® ÃøÁ¤µµ ³»ºÎ¾ÐÃà½ÇÀÇ Ã¼Àûº¯Çü·®À¸·ÎºÎÅÍ Æò±Õ º¯Çü·®À» ÃøÁ¤ÇÔÀ¸·Î Á¡Åä½Ã »ç¿ëÇÏ¿´´ø Clip gage¸¦ Á¦°ÅÇÏ¿© ½ÃÇèÀ» º¸´Ù Æí¸®ÇÏ°Ô ÇÒ ¼ö ÀÖ¾úÀ¸¸ç ¾î´À ÀϺκп¡¼ ÃøÁ¤Çß´ø Ãø¹æº¯ÇüÀ» ´ëÇ¥°ªÀ¸·Î »ç¿ëÇÏ¿´´ø ´ÜÁ¡À» º¸¿ÏÇÏ¿´´Ù. ±×¸®°í °ø½ÃüÀÇ Á¦ÀÛÀº ¸ð·¡¸¦ °øÁß³«ÇϹý¿¡ ÀÇÇØ ½Ç½ÃÇÏ¿© ¹Ðµµ¸¦ ±ÕµîÇÏ°Ô ¸¸µé¾úÀ¸¸ç °ø½ÃüÀÇ Ã¼Àûº¯Çü·®Àº COI °¡½º¸¦ ÀÌ¿ëÇÏ¿© üÀûº¯Çü·® ÃøÁ¤À» º¸´Ù Á¤È®ÇÏ°Ô ÇÒ ¼ö ÀÖ¾ú´Ù. ½ÃÇè°á°ú·ÎºÎÅÍ ºñƲ¸²Àü´Ü½ÃÇè¿¡ ÀÇÇÑ ¸ð·¡ÀÇ ÀÀ·Â -º¯Çü·ü °Åµ¿ÀÌ Á¶»çµÇ¾úÀ¸¸ç ¶ÇÇÑ ÁÖÀÀ·ÂÃà ȸÀüÈ¿°ú°¡ °ËÅäµÇ¾ú´Ù. ±×¸®°í ¿¬Á÷ÀÀ·ÂÀ̳ª Àü´ÜÀÀ·ÂÁß Çϳª°¡ °íÁ¤ÀÎ »óÅ¿¡¼ ´Ù¸¥ ÇÏÁßÀ» ÀÛ¿ëÇÏ¿´À»½Ã ¼±ÇàÇÏÁß¿¡ ÀÇÇÑ °áÇÕÈ¿°ú(coupling effect)¿¡ ÀÇÇØ ¼±ÇàÇÏÁß¿¡ ´ëÇÑ Àü´Üº¯Çü·ü°ú ¿¬Á÷º¯Çü·üÀÌ °è¼Ó °üÂûµÇ¾ú´Ù. ÇÑÆí ÃຯÇü·ü¿¡ ´ëÇÑ ÁÖÀÀ·Âºñ o1/o3ÀÇ °ü°è¿¡¼ ÆÄ±«°¡ ¹ß»ýÇÏ´Â ÃຯÇü·üÀÇ À§Ä¡´Â ÃàÂ÷ÁÖÀÀ·Âºñ b(=(o2-o3)/(o1-o3))°¡ Áõ°¡ÇÔ¿¡ µû¶ó °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| A series of torsion shear tests were performed to study the drained stress -strain behavior of medium dense Santa Monica Beach sand under various stress paths. The torque was applied to both clockwise and counterclockwise directions at the end of hollow cylinder specimen. Two clip gages had been previously used to measure the changes in wall thickness and diameter of the specimen. In this study, however, the lateral strain was determined by measuring volume changes in specimen. Specimens were prepared by the air pluviation method and gaseous carbon deozide( CO2) was used to measure precisely volumetric strain in specimen. The drained stress -strain behavior of cohesionless Boils during rotation of principal stress directions was analysed based on the results of torsion shear tests. The coupling of mal stress were applied. It was also found from the test results that the atrial strain at failure decreased with increasing value. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.9, no.4, 1993³â, pp.65-82
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920445212)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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