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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.1, 1999³â, pp.31-40
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( Effects of Strut Preloading on the Restraining of Adjacent Ground Displacement at Braced Excavations )
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The bracing system using screw jack is not effective for the restraining of adjacent ground displacement. since the screw jack dose not induce sufficient preloading on struts. In order to protect excessive displacement of adjacent ground at braced excavation, new preloading jack was developed in the country. In this paper, the new preloading jack and the measurement results of the lateral displacement of braced wall at three deep excavation sites in Seoul city are introduced. The measurement results showed that the maximum displacements of braced wall are smaller than 0.15% of excavation depth, therefore the wall displacements can be minimized by preloading which is acted on bracing. If the bracing system with new preloading jack is used in braced excavation, it is effective for reducing the cost and period of construction.
 
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braced excavation;bracing system;wall displacement;strut preloading;preloading jack;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.1, 1999³â, pp.31-40
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921748876)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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