An Efficient Probabilistic Back-Analysis Method for Braced Excavations

2020 ◽  
pp. 241-269
Author(s):  
Wan-Huan Zhou ◽  
Zhen-Yu Yin ◽  
Ka-Veng Yuen
Keyword(s):  
Back Analysis ◽  
Analysis Method ◽  
Braced Excavations

Back Analysis Methods in Geotechnical Engineering

2014 ◽  
Vol 1020 ◽  
pp. 423-428 ◽  
Author(s):  
Eva Hrubesova ◽  
Marek Mohyla
Keyword(s):  
Rock Mass ◽  
Geotechnical Engineering ◽  
Back Analysis ◽  
Rheological Parameters ◽  
Analysis Method ◽  
Direct Optimization ◽  
Initial Stress State ◽  
Analytical Functions ◽  
Is Evaluation

The paper deals with the back analysis method in geotechnical engineering, that goal is evaluation the more objective and reliable parameters of the rock mass on the basis of in-situ measurements. Stress, deformational, strength and rheological parameters of the rock mass are usually determined by some inaccuracies and errors arising from the complexity and variability of the rock mass. This higher or lower degree of imprecision is reflected in the reliability of the mathematical modelling results. The paper presents the utilization of direct optimization back analysis method, based on the theory of analytical functions of complex variable and Kolosov-Muschelischvili relations, to the evaluation of initial stress state inside the rock massif.

Method of Estimating the Foundation Settlement under Different Working Conditions through Settlement Measurement

2015 ◽  
Vol 744-746 ◽  
pp. 527-530
Author(s):  
Ai Min Liu ◽  
Ai Jun ZhuGe
Keyword(s):  
Working Conditions ◽  
Curve Fitting ◽  
Back Analysis ◽  
Foundation Settlement ◽  
Analysis Method ◽  
Large Area ◽  
Soft Foundation ◽  
Fitting Method ◽  
Service Load ◽  
Curve Fitting Method

In the large-area soft foundation reinforcement project, the loading process is relatively complicated and the preloading load is not consistent with the service load in most cases; thus the conventional settlement curve fitting method cannot nicely predict the post-construction settlement of foundation under the service load. The back analysis method can be used to obtain the calculation parameters, so the settlement and consolidation conditions under various different loads at different time can be calculated and the foundation settlement hereby can be estimated exactly.

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