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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.3, 1998³â, pp.73-94

( Three-Dimensional Limit Equilibrium Stability Analysis of the Irregularly Shaped Excavation Comer with Skew Soil Nailing System )
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»ç¸éº¸°­ ¶Ç´Â ±¼Âø¸éÀÇ ¾ÈÁ¤¼º È®º¸¸¦ À§ÇØ ½îÀÏ·ÊÀϸµ °ø¹ýÀÌ Á¾Á¾ Àû¿ëµÇ°í ÀÖ´Ù. ±×·¯³ª ¿À¸ñÇüÅ ¶Ç´Â º¼·ÏÇüÅ ¸ð¼­¸®ºÎ¿Í °°Àº Ư¼öÇÑ Áö¿ª¿¡ ½îÀϳ×Àϸµ °ø¹ýÀÌ Àû¿ëµÇ¾îÁú °æ¿ì, Æí±â°¢º¸°­ÇüÅÂ, Áï skew ½îÀϳ×ÀÏ ÇüÅ·ΠÁÖ·Î ½Ã°øÁã°í ÀÖ´Ù. ÇÏÁö¸¸, Áö±Ý±îÁö skew ½îÀÏ·ÊÀϸµ °ø¹ýÀÌ Àû¿ëµÈ ±¼Âø ¸ð¼­¸®ºÎ¿¡ ´ëÇÑ 3Â÷¿ø ¾ÈÁ¤Çؼ® ¹× °Åµ¿ºÐ¼® µî¿¡ ´ëÇÑ ½ÇÇèÀ̳ª ¿¬±¸°á°ú´Â ¹ÌÈíÇÑ ½ÇÁ¤À̸ç, µû¶ó¼­ º¸°­ÀçÀÇ ¹èÄ¡ÇüÅÂ, »ðÀÔ°¢µµ ¹× ±æÀÌ µî °ü·Ã ¼³°èº¯¼ö°ª °áÁ¤¿¡ °üÇÏ¿© ÁÖ·Î °æÇè¿¡ ÀÇÁ¸Çϰí ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. µû±ÛÀ¹ º» ¿¬±¸ÀÇ ÁÖµÈ ¸ñÀûÀº, skew ½îÀϳ×Àϸµ °ø¹ýÀÌ ¿À¸ñÇüÅ ±¼Âø ¸ð¼­¸®ºÎ¿¡ Àû¿ëµÇ´Â °æ¿ì ÀÌ¿¡ ´ëÇÑ 3Â÷¿ø ÇѰèÆòÇü ¾ÈÁ¤¼º Æò°¡±â¹ýÀ» Á¦½ÃÇÏ´Â µ¥ ÀÖ´Ù. 3Â÷¿ø ¿¹»ó ÆÄ±«Èë½û±âÀÇ Çü»óÀº FLAC ÇÁ·Î±×·¥ ¸ðµ¨¸µ ¹× ÇØ¼®À» ÅëÇØ °áÁ¤ÇÏ¿´À¸¸ç, ¸ð¼­¸®ºÎ¿¡ ´ëÇÑ 3Â÷¿ø ħÅõ¼ö¾Ð »êÁ¤½ÄÀÇ Á¦½Ã ¹× ÇØ¼®½Ã ´ÙÃþÁö¹ÝÁ¶°ÇÀÇ °í·Á µîÀÌ Æ÷ÇԵǾú´Ù. ¶ÇÇÑ Á¦½ÃµÈ 3Â÷¿ø ¾ÈÁ¤Çؼ®¹ý À» ÀÌ¿ëÇØ, °ü·Ã ¼³°èº¯¼öµéÀÇ ¸ð¼­¸®ºÎ ¾ÈÁ¤¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ Á¤µµ¸¦ ºÐ¼®ÇÏ¿´´Ù. ¾Æ¿ï·¯ ±â Á¦½ÃµÈ º¼·ÏÇüÅ ±¼Âø ¸ð¼­¸®ºÎÀÇ 3Â÷¿ø ¾ÈÁ¤Çؼ® ¹ýÀ» ÀÌ¿ëÇØ skew ½îÀϳ×ÀÏ º¸°­ÆÐÅÏÀÇ È¿À²¼ºÀ» ºÐ¼®ÇÏ¿´À¸¸ç, ¶ÇÇÑ ±¼Âø°úÁ¤À» ÅëÇØ Àü¸éºÎ º®Ã¼º¯À§ ¹× ÀÎÁ¢Áö¹ÝÀÇ Ä§ÇÏ µîÀÌ »ó´ëÀûÀ¸·Î ¹® Á¦½ÃµÇ´Â º¼·ÏÇüÅ ±¼Âø ¸ð¼­¸®ºÎ¿¡ ´ëÇÑ º¯À§¿¹ÃøÀ» À§ÇØ ÁØ 3Â÷¿ø À¯ÇÑ¿ä¼Ò ÇØ¼®±â¹ý ¹× Áßø±â¹ý µîÀÇ Àû¿ëÀ» ½ÃµµÇÏ¿´´Ù.
In the present study, a method of the three-dimensional limit equilibrium stability analysis of shape of the potential failure wedge for the concave-shaped excavation corner is assumed on the basis of the results of the FLACSU program analysis. Estimation of the three-dimensional seepage forces expected to act on the failure wedge is made by solving the three-dimensional continuity equation of flow with appropriate boundary conditions. By using the proposed method of three-dimensional stability analysis of the concave-shaped excavation corner, a parametric study is performed to examine the reinforcement effect of skew soil nailing system, range of the efficient skew angles and seepage effect on the overall stability. Also examined is the effect of an existence of the right-angled excavation corner on three-dimensional deflection behaviors of the convex-shaped skew soil nailing walls. The results of analyses of the convexshaped excavation corner with skew soil nailing system is further included to illustrate the effects of various design parameters for typical patterns of skew nails reinforcement system.
 
Ű¿öµå
Concave-Shaped Corner;Convex-Shaped Corner;Skew Soil Nailing System;3D Limit Equilibrium Stability Analysis;3D Seepage Forces;3D Deflection Behaviors;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.3, 1998³â, pp.73-94
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448140)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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