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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.12, 2009³â, pp.47-55
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¼öÁ¤ Bouwer and Rice ¹ýÀ» ÀÌ¿ëÇÑ ÇÊÅÍÄÉÀÌÅ©°¡ Á¸ÀçÇÏ´Â ¿¬Á÷Â÷¼öº®ÀÇ ÇöÀå Åõ¼ö°è¼ö »êÁ¤¹ý
( Modification of Bouwer and Rice Method to Evaluate Hydraulic Conductivity of Cutoff Wall Considering Filter Cake Development ) |
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| ¼ø°£º¯À§½ÃÇè(Slug test)À» ÅëÇØ ´ë¼öÃþÀÇ Åõ¼ö°è¼ö¸¦ ±¸ÇÒ ¶§, ½ÃÇè°á°ú ÇØ¼®¿¡ Àû¿ëÇÏ´Â line-fitting¹ý Áß °¡Àå ÀϹÝÀûÀÎ ¹æ¹ýÀÌ Bouwer and Rice¹ýÀÌ´Ù. Bouwer and Rice¹ýÀ» Àû¿ëÇÏ¿© ¾ÐÃ༺ÀÌ Å©°í º®Ã¼ÀÇ µÎ²²°¡ ¾ãÀº ¿¬Á÷Â÷¼öº®ÀÇ Åõ¼ö°è¼ö¸¦ »êÁ¤ÇÒ ¶§´Â ¼¼½ÉÇÑ ÁÖÀǰ¡ ÇÊ¿äÇÏ´Ù. ±×¸®°í ¿¬Á÷ Â÷¼öº®°ú ÁÖº¯ Áö¹Ý »çÀÌ¿¡ Çü¼ºµÈ »ó´ëÀûÀ¸·Î Åõ¼ö¼ºÀÌ ³·Àº ¿µ¿ª, Áï ÇÊÅÍÄÉÀÌÅ©(Filter cake)´Â Bouwer and Rice¹ýÀ» ¿¬Á÷Â÷¼öº®ÀÇ Åõ¼ö°è¼ö »êÁ¤½Ã, ÀÌ ¹æ¹ýÀ» Á÷Á¢Àû¿ëÇÏ±â ¾î·Æ°Ô ¸¸µç´Ù. º» ³í¹®¿¡¼´Â ±âÁ¸ÀÇ Bouwer and Rice¹ýÀÇ ÇѰ踦 ±Øº¹Çϱâ À§Çؼ À¯¼±¸Á °³³äÀ» µµÀÔÇÑ ¼öÁ¤ Bouwer and Rice¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ¼öÁ¤µÈ Bouwer and Rice¹ýÀº ¿¬Á÷Â÷¼öº®ÀÇ Åõ¼ö°è¼ö¸¦ »êÁ¤ÇÒ ¶§ ÇÊÅÍÄÉÀÌÅ©¸¦ Æ÷ÇÔÇÑ ¿¬Á÷Â÷¼öº®ÀÇ ±âÇÏÇÐÀû Á¶°ÇÀ» È¿À²ÀûÀ¸·Î ¹Ý¿µÇÒ ¼ö ÀÖµµ·Ï ÇÑ´Ù. ¶ÇÇÑ, ¼öÁ¤ Bouwer and Rice¹ýÀÇ Àû¿ë¼ºÀ» °ËÁõÇϱâ À§ÇÑ »ç·Ê ¿¬±¸°¡ º» ³í¹®¿¡¼ ¼öÇàµÇ¾ú´Ù. |
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| As a conventional line-fitting method, the Bouwer and Rice method has been popularly adopted to estimate the hydraulic conductivity of an aquifer through a slug test. Because a vertical cutoff wall is usually very compressible and features a small wall thickness, the Bouwer and Rice method should be carefully applied to analyzing slug test results to estimate the hydraulic conductivity of vertical cutoff walls. In addition, a relatively impermeable layer, called a filter cake, formed at the interface between the cutoff wall and the natural soil formation makes it difficult to use the Bouwer and Rice method directly. In order to overcome such limitations, the original Bouwer and Rice method has been modified by incorporating the concept of the flow net method. In this modification, the geometry condition of cutoff walls including the filter cake is effectively considered in evaluating the hydraulic conductivity of a vertical cutoff wall. |
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| Bouwer and Rice method;Filter cake;Flow net method;Slug test;Vertical cutoff wall; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.12, 2009³â, pp.47-55
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200919061726798)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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