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Çѱ¹Áö¹Ý°øÇÐȸ / v.16, no.4, 2000³â, pp.83-94
Elastometer-200À» ÀÌ¿ëÇÑ ºÎ»êÁö¿ª ÇØÀúÁö¹ÝÀÇ Áö¹ÝƯ¼ºÄ¡ Æò°¡
( Evaluation of Ground Properties for Marine Ground in Pusan Area using Elastometer-200 Type )
±èµ¿Ã¶;ÃÖ¿ë±Ô; Á¤È¸¿ø, °æ¼º´ëÇб³ ´ëÇпø;Á¤È¸¿ø, °æ¼º´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ±¹³»¿¡¼­ PMTÀÇ Àû¿ë¼º, ½ÃÇèÀýÂ÷, ±×¸®°í ½ÃÇè°á°ú·ÎºÎÅÍ Áö¹ÝÀÇ Àü´Ü°­µµÁ¤¼ö $(cu,phi)$¿Í º¯ÇüƯ¼ºÄ¡ (E)¸¦ °áÁ¤ÇÏ´Â ÀýÂ÷µîÀ» °í·ÁÇÏ¿´À¸¸ç, Elastometer-200À» »ç¿ëÇÏ¿© ºÎ»êÁö¿ªÀÇ ÇØÀúÁö¹Ý 3°³Áö¿ª, 6°³ ½ÃÃß°ø¿¡¼­ PMT¸¦ ¼öÇàÇÏ¿´´Ù. ½ÃÇè°úÁ¤¿¡¼­ ¹ß»ýµÇ¾ú´ø ¹®Á¦Á¡µéÀ» ºÐ¼®ÇÏ¿´À¸¸ç ½ÃÇè°á°ú¸¦ ºÐ¼®ÇÏ¿´´Ù. PMT ½ÃÇè°øÀÇ Á¤Áö¾Ð·ÂÀº ÇÁ·¹¼Å¹ÌÆ®°î¼±¿¡¼­ Á÷Á¢ ÆÇµ¶ÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ÇѰè¾Ð·Â £ð Àº ¿Ü»ðÀûÀÎ ¹æ¹ýÀÎ $£ð-log(Deltav/v)$¹æ¹ý¿¡ ÀÇÇÏ¿© °áÁ¤ÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ Áö¹ÝÀÇ °­µµÁ¤¼ö$(cu,phi)$¿Í º¯Çü°è¼ö(E)µµ ±¸ÇÒ¼ö ÀÖ¾úÀ¸¸ç, PMT°á°ú·Î ±¸ÇÑ Áö¹Ý Ư¼ºÄ¡´Â ½Ç³»½ÇÇè¿¡¼­ ±¸ÇÑ Æ¯¼ºÄ¡º¸´Ù Å©°Ô Æò°¡µÇ¾ú´Ù.PMT°á°ú·Î Áö¹ÝÀÇ Á¾·ù¸¦ °³·«ÀûÀ¸·Î Æò°¡ÇÒ ¼ö ÀÖ¾ú´Ù. ºÎ»êÁö¿ª ÇØÀúÁö¹ÝÀÇ °æ¿ì, £ð ÀÇ °ªÀº Á¡¼ºÅäÀÇ °æ¿ì 6.4~22.5 $kg/cm^2$, »çÁúÅäÀÇ °æ¿ì 2.2~30.0$kg/cm^2$, dzȭÅäÀÇ °æ¿ì 13.0~58.0$kg/cm^2$, , dzȭ¾ÏÀÇ °æ¿ì 47.0~190.0 $kg/cm^2$ÀÇ, ¹üÀ§¿¡ ÀÖ¾ú´Ù. ¶ÇÇÑ, Em/£ð Àº Á¡¼ºÅäÀÇ °æ¿ì 2.4~7.6, »çÁúÅäÀÇ °æ¿ì 2.6~12.1, dzȭÅäÀÇ °æ¿ì 6.8~17.1, dzȭ¾ÏÀÇ °æ¿ì 7.2~29.6ÀÇ ¹üÀ§¿¡ ÀÖ¾ú´Ù.
Applicability of PMT in domestic area, test procedure, and methods determining the shear strength parameters $(cu,phi)$and deformation character (E) using PMT results were studied. At six test boreholes of three construction sites in Pusan, PMT using Elastometer-200 type was performed. The problems occurring during tests were investigated and the test results were analysed.In-situ total horizontal stress could be obtained by observation from pressuremeter curve and limit pressure, £ð could be determined by $£ð-log(Deltav/v)$ method. Shear strength parameters$(cu,phi)$ and deformation modulus(G, E) could be determined from the PMT results. But effective friction angle and undrained cohesion determined from PMT results were greater than those obtained from laboratory test.Using PMT results, marine soil in Pusan could be classified approximately. Net limite pressure values were in the range of 6.4~22.5 $kg/cm^2$, in clay, 2.2~30.$kg/cm^2$, in sand, 13.0~58.0$kg/cm^2$, in weathered soil and 47.0~190.0 $kg/cm^2$, in weathered rock. Also, Em/£ð values were in the range of 2.4~7.0 in clay, 2.6~12.1 in sand, 6.8~17.1 in weathered soil and 7.2~29.6 in weathered rock.
 
Ű¿öµå
PMT(pressuremeter test);In-situ total horizontal stress, Limit pressure;Modulus of ground;Shear strength parameters;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.16, no.4, 2000³â, pp.83-94
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920441355)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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