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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.2, 2011³â, pp.27-34
Àΰø°­¿ì¿¡ ÀÇÇÑ ¸ðÇüÅäÁ¶»ç¸éÀÇ ºØ±«¸ÞÄ«´ÏÁò °áÁ¤ (I)
( Determination of Failure Mechanism of Slope Calibration Chamber Tests Using Rainfall Simulation (I) )
Á¤Áö¼ö;Á¤Ãá±³;ÀÌÁ¾ÀÎ;À̽ÂÈ£; »óÁö´ëÇб³ °Ç¼³½Ã½ºÅÛ°øÇаú;±¹ÅäÇØ¾çºÎ ÁÖÇѹ̱º ±âÁöÀÌÀü »ç¾÷´Ü;±¹ÅäÇØ¾çºÎ °ø°ø±â°ü Áö¹æÀÌÀü ÃßÁø´Ü;»óÁö´ëÇб³ °Ç¼³½Ã½ºÅÛ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â °­¿ì ½Ã Áö¹ÝÁ¤¼ö º¯È­¿¡ µû¸¥ »ç¸éºØ±« ¸ðµ¨°áÁ¤¿¡ °üÇÑ ±âÃÊ¿¬±¸·Î¼­ °­¿ìÀçÇöÀåÄ¡¸¦ Ȱ¿ëÇÑ ¸ðÇü½ÇÇèÀ» ½Ç½ÃÇÏ¿© ºÒÆ÷È­ »óÅÂÀÇ »ç¸é¿¡ ħÅõÇÏ´Â °­¿ì¿¡ ´ëÇÏ¿© Áö¼Ó°­¿ìƯ¼º°ú Åõ¼öƯ¼ºÀ» °í·ÁÇÏ¿© °£±Ø¼ö¾Ð, Åä¾Ð, ÇÔ¼öºñÀÇ º¯È­¿¡ µû¸¥ »ç¸é °Åµ¿¿¡ ´ëÇØ ºÐ¼®ÇÏ¿´´Ù. ¿¬±¸°á°ú °­¿ì(50mm/h)°¡ Áö¼ÓÀûÀ¸·Î ¹ß»ýµÊ¿¡ µû¶ó È­°­ dzȭÅäÀÇ °£±Ø¼ö¾ÐÀº »óºÎ¿¡¼­ ¸ÕÀú »ó½ÂÇϱ⠽ÃÀÛÇϸç, À̾ Áß°£ºÎ¿Í ÇϺο¡¼­ °£±Ø¼ö¾ÐÀÌ »ó½ÂÇϱ⠽ÃÀÛÇÏ¿´´Ù. Ç¥ÁØ»çÀÇ °£±Ø¼ö¾ÐÀº ¿ªÀ¸·Î ÇϺο¡¼­ »óºÎ·Î °£±Ø¼ö¾ÐÀÌ »ó½ÂÇÏ´Â °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾úÀ¸¸ç ÀÌ °°Àº ¿øÀÎÀº Ç¥ÁØ»ç ¿Í È­°­Ç³È­ÅäÀÇ Åõ¼ö°è¼öÀÇ Â÷ÀÌ·Î ÆÇ´ÜµÈ´Ù. ½ÇÇè°á°ú Áö¹ÝÁ¶°Ç º°·Î ´Ù¸¥ Â÷À̰¡ ÀÖÀ¸³ª ¾à 60~75% Á¤µµ Æ÷È­µÉ °æ¿ì¿Í ´©Àû°­¿ì·® 120mmÀÌ»ó Áö¼Ó ½Ã »ç¸éºØ±«ÀÇ ¹ß»ý À§Ç輺ÀÌ ÀÖ´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
This study analyzes the determination of slope failure model due to changes in ground condition followed by heavy rainfall. With a simulated rainfall system, the movement of a slope from the rainfall penetrating the unsaturated soil is investigated with respect to various conditions of pore-water pressure, earth pressure, and moisture content, considering rainfall duration and permeability. As a result of the experiment, under the persistent precipitation of 50mm/h, pore-water pressure of weathered granite soil started increasing from the upper position of the slope, and then the pressure increased in middle and bottom portion of it in timely manner. In case of the pore-water pressure of the standard soil, the pressure increased from the middle and bottom portion, and the cause of the different order is suspected to be the difference in permeability between the standard soil and the weathered granite soil. As an outcome, though the result may vary by each foundation, there exists a danger of slope failure not only when the cumulative rainfall is more than 120 mm but also when the saturation level amounts to 60~75%.
 
Ű¿öµå
Pore-water pressure;Rainfall durations;Rainfall intensity;Soil slope;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.2, 2011³â, pp.27-34
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201116637923615)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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