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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.3, 2002³â, pp.13-21
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¸ð·¡ÀÇ ÀÎÀå°µµ¿¡ ¹ÌÄ¡´Â ÇÔ¼öºñÀÇ ¿µÇâ
( Effect of Moisture on Tensile Strength in Sand ) |
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| 0.5% ~ 4.0%ÀÇ ÇÔ¼öºñ¸¦ °¡Áø ½ÀÀ±¸ð·¡ÀÇ ÀÎÀå°µµ º¯È¸¦ Á¶»çÇϱâ À§ÇÏ¿© °³¹ßµÈ ÀÎÀå ½ÃÇè±â¸¦ ÀÌ¿ëÇÑ ÀÏ·ÃÀÇ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ÀÌ·¯ÇÑ ½ÇÇèÀ» ÅëÇÏ¿© ÇÔ¼öºñ, »ó´ë¹Ðµµ, ¼¼¸³ÀÚ ÇÔÀ¯·® ¹× Precompression¼öÁØ¿¡ µû¶ó ¸ð·¡ÀÇ ÀÎÀå°µµ´Â º¯ÈÇÏ´Â °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. ÇÔ¼öºñ¿Í ¼¼¸³ÀÚ ÇÔÀ¯·®ÀÌ Áõ°¡ÇÔ¿¡ µû¶ó ÀÎÀå°µµ´Â Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ƯÈ÷, »ó´ë¹Ðµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ÀÎÀå°µµÀÇ Áõ°¡ °æÇâÀº ´õ¿í ºÐ¸íÇÏ°Ô ³ªÅ¸³µ´Ù. ±×·¯³ª, ÀÎÀå°µµ¿¡ ´ëÇÑ »ó´ë¹Ðµµ¿Í ¼¼¸³ÀÚÀÇ È¿°ú´Â ½ÇÁúÀûÀ¸·Î´Â ÇÔ¼öºñ¿¡ µû¶ó °áÁ¤µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ³·Àº ÇÔ¼öºñ(w < 0.5%) ¿¡¼ ¸ð·¡ÀÇ ÀÎÀå°µµ¿¡ ¹ÌÄ¡´Â »ó´ë¹Ðµµ¿Í ¼¼¸³ÀÚÀÇ ¿µÇâÀº °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ, ÀÎÀå°µµ¿¡ ¹ÌÄ¡´Â Precompression È¿°úµµ ½ÇÁúÀûÀ¸·Î´Â ÇÔ¼öºñ¿¡ ÀÇÇØ °áÁ¤µÇ¸ç, PrecompressionÀÇ Å©±â¿Í ±â°£ÀÇ ¿µÇâÀº »ó´ëÀûÀ¸·Î Àû°Ô ³ªÅ¸³µ´Ù. |
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| An extensive tension experiment was carried out to examine the variation of tensile strength in moist sand having moisture contents in the range of 0.5% < w < 4.0% with newly developed direct tension apparatus. It was observed that tensile strength of sand varied as functions of moisture content, relative density, presence of fines, and level of precompression. Tensile strength increases with increasing moisture content and fines, and this trend is more noticeable at increasing relative densities. However, the influences of relative density and fines on the tensile strength are substantially dependent on the water content. These effects are reduced at low moisture levels (w < 0.5%). The precompression effects also depend on the water content but less on the duration and level of the precompression. |
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| Ű¿öµå |
| Moist sand;Moisture effect;Precompression;Relative density;Tensile strength; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.3, 2002³â, pp.13-21
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921035302)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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