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Title of Journal: KSCE J Civ Eng

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Abbravation: KSCE Journal of Civil Engineering

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Korean Society of Civil Engineers

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1976-3808

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Prediction of ground load by performing back analy

Authors: Jungjoo Kim Jeongsoo Kim Moonkyum Kim Hankyu Yoo
Publish Date: 2015/01/05
Volume: 19, Issue: 6, Pages: 1697-1706
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Abstract

A ground load prediction method is suggested herein based on the deterioration of the primary support during its durable life This study includes two contents firstly the real behavior of primary support was evaluated and secondly it was used to propose back analysis procedure based on measurement data To predict the ground load acting on the primary support it is important to estimate the real behavior of shotcrete and steel sets by performing experiments Thus largescale experiments were performed on archshaped specimens combining the application of axial forces and bending moments The results show that shotcrete can resist only axial forces but steel sets can withstand both axial and flexural loads Based on these results back analysis was performed to predict ground load using the measurement data from a domestic construction site Compared to other widely used methods the proposed method predicts 21 to 51 smaller ground load values in different zones Because the proposed method predicted different ground loads in the same ground conditions it was deduced that these ground load values were more realistic than the previously predicted results

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