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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.5, 1998³â, pp.111-128
Áö¹Ý ±ªÃ¢·® ¿¹Ãø°ú ºÐ¸®Çü ÇöÀå Ÿ¼³ ¸»¶ÒÀÇ °Åµ¿
( On Prediction of Ground Heave and the Performance of the Isolation-tube Shafts )
±è¸íÇÐ; Á¤È¸¿ø, ÀÎÁ¦´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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¹ÌÇÕÁß±¹ ÅØ»ç½º ÁÖ ÈÞ½ºÅϽà ¼ÒÀçÀÇ ÈÞ½ºÅÏ ´ëÇÐ ³»¿¡ À§Ä¡ÇÑ ¹ÌÇÕÁß±¹ ±¹¸³ Áö¹Ý ½ÇÇèÁö (National Geotechnical Experimentation Site at the University of Houston)ÀÇ ÆØÃ¢¼º Á¡Åä¿¡ ¼³Ä¡µÈ Á÷°æ 305mm 1°³ÀÇ ÀÏ¹Ý ÇöÀ埼³ ¸»¶Ò°ú 3°³ÀÇ ºÐ¸®Çü ÇöÀ埼³ ¸»¶ÒÀÇ 18°³¿ù°£ÀÇ °Åµ¿¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. Áö¹ÝÀÇ Èí¼ö·Â º¯È­¿¡ µû¸¥ Áö¹Ý ÆØÃ¢·® ¿¹ÃøÀ» À§ÇØ ½ÇÇè ¸»¶Ò ÁÖÀ§ÀÇ Áö¹Ý¿¡ ±íÀ̺°·Î Áö¹Ý Èí¼ö·Â °¨Áö ÀåÄ¡¸¦ ¼³Ä¡ÇÏ¿© °üÃøÇÑ °á°ú, Áö¹ÝÀº ÃÖ´ë 35mm±îÁö ÆØÃ¢ÇÏ¿´°í ÀÏ¹Ý ÇöÀ埼³ ¸»¶ÒÀº 4-5mm, ºÐ¸®Çü ÇöÀ埼³ ¸»¶ÒÀº 1-2mmÀÇ ¼öÁ÷ º¯À§°¡ °üÃøµÇ¾ú´Ù. ¶ÇÇÑ Áö¹Ý Èí¼ö·Â, Àü¾Ð·Â°ú üÀû º¯Çü·ü °£ÀÇ °ü°è½ÄÀ» ¾ò±â À§ÇØ 3Ãà ¾ÐÃà ½ÇÇè ÀåÄ¡¸¦ º¯ÇüÇÑ ½Ç³» ½ÇÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, ÀÌ °á°ú¸¦ ÀÌ¿ëÇÏ¿© ÃÖ´ë Áö¹Ý ÆØÃ¢·® ¿¹Ãø ¸ðµ¨À» ¸¸µé¾î ÇöÀå ½ÇÃøÄ¡¿Í ºñ±³ °ËÅäÇÏ¿´´Ù.
An experimental study, which included four 305mm-diameter test shafts, one reference shaft with standard design and three test shafts with isolation tubes, is described. The soil was also soil heave and shrinkage that occur during suction changes at the field site. The test shafts were monitored for a period of about 18 months. Maximum ground movements exceeding 35mm were observed. Movements of only 1 to 2mm were observed in the test shafts with isolation tubes, while movements of 4 to 5mm were observed in the reference shaft. A simple computing model was developed to predict, based on suction changes, the maximum amount of ground heave. Relationship among suction. total stress, and volumetric strain was abtained in the laborstory. This relationship, used as inputs to the predictive model, enabled the computation of the maximum ground heave.
 
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Expansive soil;Drilled shaft;Isolation tube;Suction;NGES-UH;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.5, 1998³â, pp.111-128
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448469)
¾ð¾î : Çѱ¹¾î
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