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Çѱ¹Áö¹Ý°øÇÐȸ / v.16, no.1, 2000³â, pp.31-42
À̾ÏdzȭÅäÀÇ È¾¹æÇâ¾Ð¹Ð ¹× Åõ¼öƯ¼º
( A Study on the Horizontal Consolidation and Permeability Characteristics of Decomposed Mudstone Soil in Pohang )
±è¿µ¼ö;±è±â¿µ;¹é¿µ½Ä; °æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æÈñ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°ÇÃà°øÇаú;
 
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¾Ð¹Ð°ú Åõ¼ö´Â ÈëÀÇ Áß¿äÇÑ °øÇÐÀû Ư¼ºÁß ÇϳªÀÌ´Ù. ÀϹÝÀûÀ¸·Î Á¡Åä¿¡ ´ëÇÑ ¾Ð¹Ð ¹× Åõ¼ö°è¼ö´Â Ç¥ÁؾйнÃÇèÀ» ÅëÇÑ °£Á¢ÀûÀÎ ¹æ¹ý¿¡ ÀÇÇØ ±¸ÇØÁö°í ÀÖ´Ù. ±×·¯³ª Ç¥ÁؾйнÃÇèÀº ½Ã·áÀÇ Æ÷È­¹®Á¦, °£±Ø¼ö¾ÐÀÇ ÃøÁ¤ÀÌ ¿ëÀÌÇÏÁö ¾ÊÀ» »Ó ¾Æ´Ï¶ó, Ⱦ¹æÇ⠾йнÃÇèÀ» ¼öÇà ÇÒ ¼ö ¾ø¾î ±×³ª¸¶ Á¤È®ÇÑ È¾¹æÇ⠾йаè¼ö¸¦ »êÁ¤ÇÒ ¼ö ¾ø´Ù. ±×¸®°í ¾Ð¹Ð°è¼ö¸¦ ±¸Çϴµ¥ °¡Àå ³Î¸® ÀÌ¿ëµÇ°í ÀÖ´Â ÇØ¼®¹æ¹ýÀÎ Taylor¹æ¹ý°ú Casagrande ¹æ¹ýÀº 2Â÷¾Ð¹ÐÀÌ ºÒºÐ¸íÇϰí Ãʱâ Á÷¼±ºÎºÐÀ» ãÀ» ¼ö ¾ø´Â °æ¿ì¿¡ ´ëÇØ¼­´Â ½Å·Ú¼ºÀÌ ¶³¾îÁø´Ù°í ÇÒ ¼ö ÀÖ´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ½ÇÇè»óÀÇ ´ÜÁ¡À» º¸¿ÏÇÒ ¼ö ÀÖ°Ô Á¦ÀÛµÈ RowecellÀ» ÀÌ¿ëÇÏ¿© Æ÷Ç×Áö¿ªÀÇ À̾ÏdzȭÅ並 À̹漺 ¹× ½Ã·áÀÇ Å©±â¸¦ °í·ÁÇØ Ⱦ¹æÇâ¾Ð¹Ð½ÃÇèÀ» ½Ç½ÃÇϰí ÀÌ °á°ú¸¦ 4°¡Áö ÇØ¼®¹æ¹ý$(Taylor,; Casagrande,; Hyperbolic,; delta/t-logt)$À¸·Î ºñ±³ ºÐ¼®ÇÏ¿© ÇØ¼®¹æ¹ý¿¡ µû¸¥ ¾Ð¹Ð°è¼öÀÇ Â÷ÀÌÁ¡À» ÆÄ¾ÇÇÏ¿´´Ù. ¶ÇÇÑ Åõ¼ö°è¼ö(k)¿Í °£±Øºñ(e)ÀÇ °ü°è¸¦ ±ÔÁ¤ÇÒ ¼ö ÀÖ´Â Åõ¼ö»ó¼ö¸¦ ÇØ¼®¹æ¹ý¿¡ µû¶ó ±¸ÇÏ¿´À¸¸ç, ¾Ð¹Ð½ÃÇè¿¡¼­ °è»êµÈ °£Á¢Åõ¼ö°è¼öÀÇ Å¸´ç¼ºÀ» °ËÁõÇϱâ À§ÇØ RowecellÀ» ÀÌ¿ëÇÑ Á÷Á¢Åõ¼ö½ÃÇèÀ» ½Ç½ÃÇÏ°í ±× °á°ú¸¦ ºñ±³ÇÏ¿´´Ù.
Consolidation and permeability are major engineering properties of soil. In clay, coefficient of permeability and consolidation can be calculated by incremental loading consolidation test. However, it is known that the incremental loading test has several deficiencies including long testing time, non-uniform stress state, very soft clay and problem of back pressure saturation. Specially, it is not performed with horizontal consolidation test. Several methods have been proposed for obtaining reliable values of $C_v$. Among these, the square root of time-fitting method proposed by Taylor(1948) and logarithm of time-fitting method, also called Casagrande's method, are used extensively in soil engineering practice. But these methods are not amenable for the absence of initial linear portion and have the difficulties involved in distinguishing secondary compression from primary compression. Rowecell consolidation tests were carried out in this study with different trimming axis and sample size. The results were compared with those of other methods; Casagrande,$Taylor,; Casagrande,; Hyperbolic,; delta/t-logt$. From the results, we explained a relationship between horizontal coefficient of permeability and void ratio was obtained. Finally, the directly measured horizontal coefficient of permeability obtained by using the Rowecell was compared with the permeability derived indirectly from the consolidation test result.
 
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Horizontal coefficient of consolidation;Horizontal coefficient of permeability;Rowecell;Direct permeability test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.16, no.1, 2000³â, pp.31-42
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011921749995)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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