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ANALYSIS OF INFLUENCE ON POST-CONSTRUCTION SETTLEMENT OF EXISTING EMBANIKMENT BY FILLING NEWLY WIDENED SUBGRADE |
ZHENG Ming-hui, CAO Xiao-lin, YUAN Ming |
Chinese Railway Engineering Corporation |
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Abstract Based on the crack change and settlement monitoring result of one embankment, this paper gives a conclusion that crack occurring to existing embankment is caused by unbalanced settlements between old embankment and new embankment owing to the outside force during filling newly widened subgrade in combination with theoretic analysis, proposes the suggestion that two aspects, namely materials and depth of subgrade treatment and reinforcing embankment body, should be considered for treatment of connection between new subgrade and old subgrade, for providing the basis for taking measures to avoid the crack of embankment and disaster of subgrade.
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Received: 31 March 2005
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