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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.10, 2008³â, pp.83-91
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( Prediction Method of Settlement Based on Field Monitoring Data for Soft Ground Under Preloading Improvement with Ramp Loading ) |
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| ÇöÀå°èÃø ÀڷḦ ÀÌ¿ëÇÏ¿© ¿¬¾àÁö¹ÝÀÇ ÇâÈÄ Ä§Çϰŵ¿À» ¿¹ÃøÇÏ´Â ±âÁ¸ÀÇ ¹æ¹ýµéÀº ¸ðµÎ Áï½ÃÀçÇÏ Á¶°ÇÀ» °¡Á¤ÇÏ°í °³¹ßµÈ ¹æ¹ýÀ¸·Î½á ½ÇÁ¦·Î´Â ¿¬¾àÁö¹ÝÀÇ ¾ÈÁ¤¼º µîÀ» °í·ÁÇÏ¿© Á¡ÁõÀçÇϰ¡ ÀÌ·ç¾îÁö´Â ÇöÀå¿¡ Àû¿ëÇϱ⿡´Â ¸¹Àº Á¦¾àÀÌ ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ¿¬¾àÃþÀÇ µÎ²², ¼ºÅäÇÏÁß Å©±â, ¼±Çà¾Ð¹ÐÇÏÁß, ¹è¼ö°Å¸®, ¼ºÅä¼Óµµ µîÀÇ ´Ù¾çÇÑ ¿µÇâÀÎÀÚ¸¦ °í·ÁÇÏ¿´À¸¸ç Á¡ÁõÀçÇϰ¡ ¿Ï·áµÈ ÀÌÈÄÀÇ Áö¹Ý°³·® ±â°£¿¡µµ Áö¼ÓÀûÀ¸·Î ¿¹Ãø Á¤È®µµ¸¦ ³ôÀÏ ¼ö ÀÖ´Â °èÃø±â¹Ý ħÇϰŵ¿ ¿¹Ãø±â¹ýÀ» °³¹ßÇÏ¿´´Ù. Á¡ÁõÀçÇÏ °úÁ¤¿¡¼ÀÇ ¿¹Ãø¹æ¹ý°ú ¼ºÅä¿Ï·á ÀÌÈÄÀÇ ¿¹Ãø¹æ¹ýÀÌ °³¹ßµÇ¾úÀ¸¸ç, ¼ºÅä ¿Ï·á ÀÌÈÄÀÇ ¿¹Ãø¹æ¹ýÀº ±âÇÏÇÐÀû º¸Á¤À» ÀÌ¿ëÇÑ Á¤È®µµ Çâ»ó±â¹ý°ú È®·ü·ÐÀû º¸Á¤À» ÀÌ¿ëÇÑ Á¤È®µµ Çâ»ó±â¹ý µÎ °¡Áö¸¦ Á¦¾ÈÇÏ¿´´Ù. ´ëÇü¾Ð¹Ð½ÃÇè °á°ú¸¦ ÀÌ¿ëÇÑ ¿¹Ãø±â¹ýÀÇ Àû¿ë¼º °ËÁõ °á°ú, ±âÁ¸ÀÇ ¿¹Ãø±â¹ýÀ» Àû¿ëÇÒ ¼ö ¾ø´Â Á¡ÁõÀçÇÏ Ãʱ⿡µµ ºñ±³Àû ÀûÀº µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© »ó´çÈ÷ ³ôÀº Á¤È®µµ¸¦ °¡Áö°í ħÇϰŵ¿À» ¿¹ÃøÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ, ¼ºÅä¿Ï·áÀÌÈÄ¿¡µµ ±âÁ¸ ¿¹Ãø±â¹ý°ú Á¦¾ÈµÈ ¹æ¹ýÀÇ ºñ±³, ºÐ¼® °á°ú ÃÖÁ¾Ä§ÇÏ·®°ú RMSE¿¡¼ ¸ðµÎ Á¦¾ÈµÈ ¹æ¹ýÀÌ ±âÁ¸ÀÇ ¿¹Ãø±â¹ý¿¡ ºñÇÏ¿© ¿ì¼öÇÑ ¿¹Ãø°á°ú¸¦ º¸¿´´Ù. |
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| Previous settlement prediction methods based on settlement monitoring were developed under instantaneous loading condition and have restriction to be applied to soft ground under ramp loading condition. In this study, settlement prediction method under ramp loading was developed. New settlement prediction method under ramp loading considered influence factors of consolidation settlement such as thickness of clayed layer, quantity of surcharge load and preconsolidation pressure, etc. Geometrical correction method based on hyperbolic method (1991) and correction method based on probability theory were applied to increase accuracy of settlement prediction using field monitoring data after ramp loading. Large consolidation tests for ideally controlled one dimensional consolidation under ramp loading condition were performed and the settlement behavior was predicted based on the monitoring data. New prediction method yielded good result of entire settlement behavior by using data during an early stage of ramp load. Additionally, new prediction method offered better settlement prediction which had final settlement prediction in close proximity and low RMSE(Root Mean Square Error) than previous method such as hyperbolic method did. |
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| Ű¿öµå |
| FDM;Field monitoring;Hyperbolic;Ramp loading;Settlement prediction; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.10, 2008³â, pp.83-91
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200800557077756)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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