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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.3, 2007³â, pp.133-140
Ư¼ö±³¹Ý³¯°³¸¦ »ç¿ëÇÑ DCM °ø¹ýÀÇ Áö¹Ý °üÀÔ Æ¯¼º¿¡ ´ëÇÑ »ç·Ê¿¬±¸
( Case Studies of Penetration Characteristics of DCM Wall Using Spiral Mixing Blades in Soil Layers )
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DCM°ø¹ý(½ÉÃþÈ¥ÇÕó¸® °ø¹ý)Àº È븷ÀÌ º®Ã¼ µî ±¸Á¶¹° Á¶¼º¿¡ Àû¿ëÇÏ¿´´Ù. ÀÌ·¯ÇÑ DCM º®Ã¼´Â °æÁúÃþ¿¡¼­ °üÀÔ´É·ÂÀÌ ÀÖ¾î¾ß ÇÑ´Ù. DCM Àåºñ¿¡ ºÎÂøµÈ ±³¹Ý³¯°³¿¡ ÀÇÇØ °æÁúÁö¹ÝÀÇ °üÀÔ´É·ÂÀÌ Áõ°¡µÇ´Â ¾Ë¾Æº¸±â À§ÇØ Æ¯¼ö±³¹Ý³¯°³°¡ °í¾ÈµÇ¾ú´Ù. °æÁúÁ¡ÅäÃþ¿¡ °üÀԵǴ Ư¼ö±³¹Ý³¯°³ÀÇ °üÀÔÆ¯¼ºÀº ±èÇØ¿Í ÀÎõÇöÀå¿¡¼­ Á¶»çÇÏ¿´´Ù. °í¾ÈÇÑ Æ¯¼ö±³¹Ý³¯°³´Â °üÀÔ¼Óµµ°¡ ´Ù¼Ò ´À·Áµµ N=30 ÀÌ»ó µÇ´Â Áö¹Ý±îÁö °üÀԵǾú°í °üÀԽà ȿÀ²ÀÌ °æÁúÁö¹Ý¿¡¼­ ³·¾ÆÁú ¼ö ÀÖÀ¸¹Ç·Î °æÁ¦ÀûÀÎ ±³¹Ý³¯°³ÀÇ °üÀÔ±íÀ̸¦ ºÐ¼®ÇÏ¿´´Ù.
DCM (Deep Cement Mixing Method) has been applied to build structures such as self-supported earth retaining walls. DCM columns should be penetrability into the stiff layer to assure the self-supporting ability. On the penetration increase of blade attached to the DCM mixing tools, a spiral mixing blade has been revised. Penetration characteristics of spiral blades in the stiff soil layer were evaluated through Gimhae and Incheon areas. The spiral mixing blades could penetrate into the stiff soil layers which have the N-value of greater than 30 although the penetration rate is somewhat slow. Penetration characteristics and economical efficiency should be discussed to determine the critical depth of the spiral mixing blade because the penetration efficiency can decrease in the stiff layer in this paper.
 
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Construction efficiency;Spiral mixing blades;Penetration characteristics;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.3, 2007³â, pp.133-140
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200714539254489)
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