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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.12, 2008³â, pp.53-63
°í°á¸ð·¡ÀÇ Äܼ±´ÜÀúÇ×°ú º¯Çü°è¼öÀÇ °ü°è
( Relation between Cone Tip Resistance and Deformation Modulus of Cemented Sand )
À̹®ÁÖ;ÃÖ¼º±Ù;ÃßÇö¿í;ÀÌ¿ìÁø; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ´ëÇü è¹ö½ÃÇèÀ» ÅëÇØ °áÁ¤µÈ °í°á¸ð·¡ÀÇ Äܼ±´ÜÀúÇ×°ú °í°á¸ð·¡ÀÇ È¾¹æÇⱸ¼Ó º¯Çü°è¼ö, ÀÏÃà¾ÐÃà °­µµ, Àü´Ü°­µµ¿ÍÀÇ °ü°è¸¦ °ËÅäÇÏ¿´´Ù. ½ÃÇè°á°ú ¸ð·¡ÀÇ »ó´ë¹Ðµµ³ª ¿¬Á÷±¸¼Ó¾Ð »Ó¸¸ ¾Æ´Ï¶ó °í°áÈ¿°ú°¡ Ä¿Áú¼ö·Ï Äܼ±´ÜÀúÇ×°ú Ⱦ¹æÇⱸ¼Ó º¯Çü°è¼ö°¡ Áõ°¡ÇÏ¿´´Ù. ¸ð·¡ÀÇ È¾¹æÇⱸ¼Ó º¯Çü°è¼ö´Â »ó´ë¹Ðµµ³ª ¿¬Á÷±¸¼Ó¾Ðº¸´Ù °í°áÀÇ ¿µÇâÀÌ ´õ Å©°Ô ÀÛ¿ëÇϸç, ¹Ý¸é Äܼ±´ÜÀúÇ×Àº º¯Çü°è¼öº¸´Ù »ó´ë¹Ðµµ³ª ¿¬Á÷±¸¼Ó¾ÐÀÇ ¿µÇâÀÌ ´õ Å©°Ô ³ªÅ¸³µ´Ù. °í°á°áÇÕ ¹ÌÆÄ±« »óÅ·Π°£ÁÖµÉ ¼ö ÀÖ´Â ÀÏÃà¾ÐÃà°­µµ, Àü´Ü°­µµ, Ⱦ¹æÇⱸ¼Ó º¯Çü°è¼ö¿Í´Â ´Þ¸® Äܼ±´ÜÀúÇ×Àº °í°á°áÇÕÀ» ÆÄ±«Çϸç ÃøÁ¤µÇ±â ¶§¹®¿¡, °í°á¸ð·¡ÀÇ º¯Çü°è¼ö¸¦ $70{sim}85%$ Á¤µµ °ú¼ÒÆò°¡ÇÏ¿´´Ù. ¶ÇÇÑ º» ¿¬±¸¿¡¼­´Â ȸ±ÍºÐ¼®À» ÅëÇØ °í°á¸ð·¡ÀÇ Äܼ±´ÜÀúÇ×°ú Àü´Ü°­µµÀÇ °ü°è, Äܼ±´ÜÀúÇ×°ú ÀÏÃà¾ÐÃà°­µµÀÇ °ü°è, ±×¸®°í Ⱦ¹æÇⱸ¼Ó º¯Çü°è¼ö¿Í Äܼ±´ÜÀúÇ×, ÀÏÃà¾ÐÃà°­µµÀÇ °ü°è°¡ Ç¥ÇöµÇ¾ú´Ù.
In this study, the cone tip resistances of cemented sand are measured by performing a series of miniature cone penetration tests in large calibration chamber, and the relations with constrained modulus, unconfined compressive strength, and shear strength of cemented sand are suggested. Experimental results show that both the cone tip resistance and constrained modulus of sand increase with increasing cementation effect as well as relative density and confining stress. However, it is observed that the relative density and confining stress have more significant influence on cone tip resistance than constrained modulus of cemented sand. Since the cone penetration into the ground induces the damage of cementation, the cone tip resistance can't properly reflect the cementation effect of sand. An analysis based on the constrained modulus shows that the measured cone tip resistance underestimates the deformation modulus of cemented sand by about $70{sim}85%$. In addition, this study establishes various relationships among the above soil properties from the regression analysis.
 
Ű¿öµå
Cementation;Cone tip resistance;Constrained modulus;Shear strength;Unconfined compressive strength;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.12, 2008³â, pp.53-63
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200806942466055)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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