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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.4, 1992³â, pp.81-98
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¾ÞÄ«ÁöÁö ±¼ÂøÈ븷À̺®¿¡ ÀÛ¿ëÇÏ´Â Ãø¹æÅä¾Ð
( Lateral Pressure on ,anchored Excavation Retention walls ) |
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| °íÃþ°Ç¹°À̳ª ÁöÇÏöµîÀÇ °Ç¼³½Ã ÁöÇϱ¼ÂøÀ» ±í°Ô ½Ç½ÃÇϹǷμ ÁöÇϰø°£ÀÇ È°¿ëµµ¸¦ Áõ´ë½Ãų ¼ö ÀÖ´Ù. ÀÌ °æ¿ì ÁöÇϸ¦ ¿¬Á÷À¸·Î ±¼ÂøÇϱâ À§ÇÏ¿©´Â È븷À̺®°ú ÁöÁö±¸Á¶¸¦ ¾ÈÀüÇÏ°Ô ¼³°è ½Ã°øÇÏ¿©¾ß ÇÑ´Ù. ÃÖ±Ù¿¡´Â ÁöÇϱ¼Âø½Ã ÁöÇÏÀÛ¾÷°ø°£È®º¸µîÀÇ ÀÌÁ¡ ¶§¹®¿¡ È븷À̺®ÁöÁö ±¸Á¶·Î ¾Þ°¡¸¦ ¸¸ÀÌ »ç¿ëÇÏ´Â °æÇâÀÌ ÀÖ´Ù. º» ³í¹®¿¡¼´Â »çÁúÅäÁö¹ÝÀÇ ÁöÇϱ¼ÂøÀ» ½Ç½ÃÇÑ 8°³ °¨°¢ÇöÀå¿¡¼ ±¼ÂøÀ» À§ÇÑ È븷À̺®À» ÁöÁöÇϱâ À§ÇÏ¿© »ç¿ëµÈ ¾ÞÄ«¿¡ ÇÏÁ߰踦 ºÎÂøÇÏ¿© ¾ÞÄ«ÀÇ Ãà·ÂÀ» ÃøÁ¤ÇÏ¿´´Ù. ÃøÁ¤µÈ ¾ÞÄ«Ãà·ÂÀ¸·ÎºÎÅÍ È¯»êµÈ Ãø¹æÅä¾ÐÀº Èë¶ôÀ̺®Ã¼ÀÇ °¼º¿¡ °ü°è¾øÀÌ ÁöÇ¥¸éÀ¸·Î ŹÅÍ ±¼Âø±íÀÌÀÇ 30%¿¡ ÇØ´çµÇ´Â ±íÀ̱îÁö´Â ¼±ÇüÀûÀ¸·Î Áõ°¡ÇÏ´Ù°¡ ±× ±íÀÌ ¾Æ·¡ºÎÅÍ´Â ÀÏÁ¤ºÐÆ÷¸¦ º¸ÀÌ´Â »ç´ÙÁö²Ã¸ð¾çÀÇ ºÐÆ÷¸¦ º¸¿´´Ù. ÀÌ ÀÏÁ¤Åä¾Ð ºÐÆ÷ºÎºÐÀÇ Åä¾ÐÀº Æò±ÕÀûÀ¸·Î ÃÖÁ¾±¼Âø ±íÀÌ¿¡¼ÀÇ Rankine ÁÖµ¿Åä¾ÐÀÇ 63%¿¡ ÇØ´çÇϰųª ÃÅÁ÷»ó°³ÀÔÀÇ 17Á¡¿¡ ÇØ´çÇÏ¿´´Ù. ÀÌ ¿¬±¸ °á°ú »çÁúÅäÁö¹ÝÀÇ ¾ÞÄ«ÁöÁö È븷À̺®ÀÇ ¾ÞÄ«Ãà·Â¼³°è¿¡ Àû¿ëÇϱâ À§ÇÑ Ãø¹æÅä¾ÐÀ¸·Î´Â Terzaghi-PeckÀ̳ª TschebotarioffÀÇ °æÇèÀûºÐÆ÷¸¦ ´Ù¼Ò ¼öÁ¤ÇÏ¿© Àû¿ëÇÒ ¼ö ÀÖÀ½À» ¾Ë¾Ò´Ù. |
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| Deep excavation increases utility of underground spaces for high buildings. subways etc. To excavate vertically the underground, safe earth retaining walls and supporting systems should be prepared. Recently anchors have been used to support the excavation wall. The anchored excavation has some advantages toprovide working space for underground construction. In this paper the prestressed anchor loads were measured by load cells which attacted to the anchors to support the excavation walls at eight construction fields. where under-ground deep excavation was performed on cohesionless soils. The lateral pressures on the retaining walls, which are estimated from the measured anchor forces, shows a trapezoidal distribution that the pressure increases linearly with depth from the ground surface to 30% of the excavation depth and then keeps constant value regardless of the stiffness of the walls. The maximum lateral pressure was same to 63% of the Ranking active earth pressure or 17% of the vertical overburden pressure at the final depth The investigation of the measured lateral pressure on the anchored excavation walls shows that empirical earth pressure diagram presented by Terzaghi-Peck and Tschebotarioff could be applied with some modifications to determine anchor loads for the anchored excavation in cohesionless soils. |
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.4, 1992³â, pp.81-98
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444826)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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