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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.4, 2004³â, pp.65-74
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¿¬¾àÁö¹Ý¿¡ ¼³Ä¡µÈ ¾ÞÄ¿ÁöÁö °³Î¸»¶Ò È븷À̺®ÀÇ °Åµ¿
( The Behavior of Sheet Piling Walls supported by Anchors in Soft Ground ) |
| È«¿øÇ¥;¼Û¿µ¼®;±èµ¿¿í; Áß¾Ó´ëÇб³ °Ç¼³È¯°æ°øÇаú;Áß¾Ó´ëÇб³ ±â¼ú°úÇבּ¸¼Ò;Áß¾Ó´ëÇб³ °Ç¼³È¯°æ°øÇаú;
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| ÀÎõ±¹Á¦°øÇ× °ø»çÇöÀåÀÇ 7°³ È븷ÀÌ ±¼Âø´Ü¸é¿¡¼ °èÃøµÈ ÀڷḦ Åä´ë·Î ¿¬¾àÁö¹Ý¿¡ ¼³Ä¡µÈ ¾ÞÄ¿ÁöÁö °³Î¸»¶Ò È븷À̺®ÀÇ ¼öÆòº¯À§°ú È븷À̺®¿¡ ÀÛ¿ëÇÏ´Â Ãø¹æÅä¾ÐÀ» Á¶»çÇÏ¿´´Ù. ¿¬¾àÁö¹Ý¿¡¼ ¾ÞÄ¿ÁöÁö È븷À̺®¿¡ ÀÛ¿ëÇÏ´Â Ãø¹æÅä¾ÐÀÇ ºÐÆ÷´Â Á÷»ç°¢Çü ¸ð¾çÀ̸ç, Ãø¹æÅä¾ÐÀÇ Å©±â´Â $0.6gamma H$ÀÓÀ» ¾Ë ¼ö ÀÖ´Ù. Á¦¾ÈµÈ Ãø¹æÅä¾ÐÀÇ Å©±â´Â NAVFAC(1982)ÀÇ °æÇèÅä¾Ð°ú µ¿ÀÏÇÔÀ» ¾Ë ¼ö ÀÖ´Ù. ÇÑÆí, ¿¬¾àÁö¹Ý¿¡ ¼³Ä¡µÈ ¾ÞÄ¿ÁöÁö È븷À̺®ÀÇ ¾ÈÁ¤¼º¿¡ ´ëÇÑ ÆÇ´Ü±âÁØÀº È븷À̺®ÀÇ ÃÖ´ë¼öÆòº¯À§¼Óµµ¿Í ¾ÈÁ¤¼ö¸¦ ÀÌ¿ëÇÏ¿© ¸¶·ÃÇÒ ¼ö ÀÖ´Ù. È븷À̺®ÀÇ ÃÖ´ë¼öÆòº¯À§¼Óµµ°¡ 1mm/dayÀÌÇÏÀ̸é È븷À̺®ÀÇ ¾ÈÁ¤¼ºÀÌ ¾çÈ£ÇÑ ÇöÀåÀ̰í, 1-2mm/dayÀ̸é ÁÖÀǽðøÀ» ¿äÇÏ´Â ÇöÀåÀ̸ç, 2mm/dayÀÌ »óÀ̸é È븷À̺®ÀÇ ¾ÈÁ¤¼ºÀÌ ºÒ·®ÇÑ ÇöÀåÀ̶ó°í ÆÇ´ÜÇÒ ¼ö ÀÖ´Ù. |
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| Based on the field measuring data obtained from seven excavation sections in Inchon International Airport Project, the horizontal displacement of sheet piling walls supported by anchors and the lateral earth pressure acting on sheet piling walls was investigated in soft ground. The proposed diagram of lateral earth pressure is a rectangular form, and the maximum earth pressure corresponds to $0.6gamma H$. The maximum earth pressure is similar to the empirical earth pressure proposed by NAVFAC(1982). The quantitative safe criterion of sheet piling walls with struts is established from the relationships between increasing velocity of maximum horizontal displacement and stability number in excavated ground. If the velocity of maximum horizontal displacement shows lower than 1mm per day, the sheet piling walls exist under stable state. When the velocity of maximum horizontal displacement becomes more than 1mm and less than 2mm per day, excavation works should be observed with caution. Also, when the velocity of maximum horizontal displacement becomes more than 2mm per day, appropriate remediations and reinforcements are applied to sheet piling walls. |
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| Ű¿öµå |
| Sheet piling walls;Anchor;Soft ground;Lateral earth pressure;Horizontal displacement;Stability number; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.4, 2004³â, pp.65-74
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922383234)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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