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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.7, 2010³â, pp.171-186
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( Case Study of the Characteristic of Ground Deformation and the Strut Axial Force Change in Long Span Deep Excavation )
±è¼º¿í;ÇѺ´¿ø; (ÁÖ)¹ÙÀÌÅØÄÚ¸®¾Æ °èÃø¿£Áö´Ï¾î¸µ »ç¾÷º»ºÎ;(ÁÖ)¹ÙÀÌÅØÄÚ¸®¾Æ °èÃø¿£Áö´Ï¾î¸µ »ç¾÷º»ºÎ;
 
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ÀϹÝÀûÀ¸·Î °­¼ºº®Ã¼¿¡ ºñÇÏ¿© ¿¬¼ºº®Ã¼ÀÇ °æ¿ì°¡ °Åµ¿ mechanismÀÌ »ó´ëÀûÀ¸·Î º¹ÀâÇÑ °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖÀ¸¸ç ¿©±â¿¡´Ù ¹öÆÀº¸ ÁöÁöÀÇ ÀåÁö°£ÀÎ °æ¿ì ±¼Âø´Ü¸é ¾çÂÊÀÇ Áö¹ÝÁ¶°Ç°ú ±¼Âø°øÁ¤ÀÇ Â÷À̰¡ ºÎ°¡µÇ¸é ¹öÆÀº¸ Ãà·Âº¯È­ ºÐ¼®Àº ´õ¿í ¾î·Æ°Ô µÈ´Ù. ½Ã°ø°úÁ¤¿¡¼­ ÇöÀå¿©°Ç¿¡ ÀÇÇÑ °ú±¼ÂøÀ̳ª Áöº¸ÀçÀÇ ¼³Ä¡Áö¿¬, Áö¹ÝÁ¶°ÇÀÇ º¯È­ µîÀÌ ¹ß»ý ÇÒ °æ¿ì ƯÁ¤ ¹öÆÀº¸¿¡ Å« Ãà·ÂÀÌ ¹ß»ýÇÏ¿© ¾ÈÀü ½Ã°øÀ» À§ÇùÇÏ°Ô µÉ ¼ö ÀÖ´Ù. º» ³í¹®Àº °ÅÀÇ À¯»çÇÑ Áö¹ÝÁ¶°Ç, ±¼Âø ¹× Áöº¸Á¶°ÇÀ» °®´Â µ¿ÀÏÇöÀåÀÇ ¾à 50m ÀÌ°ÝµÈ 2°³¼ÒÀÇ ¹öÆÀº¸ ¹× rock bolt ÁöÁö ÀåÁö°£ ¿¬¼ºº®Ã¼ ±íÀº ±¼Âø´Ü¸éµéÀÇ ½Ã°ø°úÁ¤¿¡¼­ ¾ò¾îÁø °èÃø°á°úÀÎ Áö¹Ýº¯Çü ¹× ¹öÆÀº¸ Ãà·Âº¯È­ Ư¼ºÀ» ºÐ¼®Çϰí 2´Ü¸é °èÃø°á°úÀÇ À¯»ç¼º ¹× Â÷ÀÌÁ¡À» ºñ±³ °íÂûÇÔÀ¸·Î½á ÇâÈÄ À¯»çÁö¹Ý ¹× µ¿Àϰø¹ý Àû¿ë projectµéÀÇ ¼³°è, ½Ã°ø°úÁ¤¿¡¼­ °³¼±, º¸¿ÏÇØ¾ß ÇÒ »çÇ× µéÀ» Á¦¾ÈÇϰíÀÚ ÇÑ´Ù.
It is generally known that the mechanism of behavior in the flexible earth retaining system is relatively more complicated than in the rigid earth retaining system. Moreover in the case of long span strut supporting system the analysis of strut axial force change becomes more difficult when the differences of ground condition and excavation work progress on both sides of excavation section are added. When deeper excavation than the specification or installation delay of supporting system or change of ground condition happen during construction process, lots of axial force can be induced in some struts, which threaten the safety of construction. This paper introduces two examples of long span deep excavation where struts and rock bolts were used as a supporting system with flexible wall structure. The characteristics of ground deformation and strut axial force change, which were measured in the sections of two examples that are 50 meters apart in one construction site and have almost similar design and construction conditions were analysed, the similarity and difference between measurement results of two examples were compared and investigated. This article aims to improve and develop the technique of design and construction in future projects having similar ground condition and supporting method.
 
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Deep excavation;Flexible earth retaining systems;Long span strut;Similarity and difference;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.7, 2010³â, pp.171-186
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201033062365002)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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