Abstract
In the densely populated urban environment, ground movements induced by deep excavations inevitably present a risk of damage to adjacent buildings and structures. An important and necessary aspect to justify the engineering design is to evaluate the degree of risk of such damage. This paper presents a specific procedure to evaluate the engineering design by assessing the risk level of building damage based on the deformation profiles along the ground surface which are calculated via numerical modelling and verified by empirical methods. This procedure is afterwards applied to justify the engineering design of the extension line construction of a metro project between PK0 + 344.00 and PK0 + 407.00 with the cut-and-cover excavation method. The results demonstrate that the damage risk levels of all the buildings adjacent to the excavations are within category level 0 indicating that the relevant design is acceptable while considering the risk of building damage induced by deep excavations.
Highlights
A specific procedure to justify the engineering design is established in this paper as described in the following four
Advances in Civil Engineering steps: (1) prediction of the magnitude and distribution of ground movements behind diaphragm walls; (2) selection of appropriate damage criterion; (3) assessment of risk level of building damage under selected criterion based on known ground deformation profiles; (4) justification of engineering design according to the results of ground movements and risk assessment
The distribution shape of the ground settlement obtained from FLAC3D could be checked by comparison with that predicted from the empirical method
Summary
A specific procedure to justify the engineering design is established in this paper as described in the following four. E proposed engineering design of deep excavations is accepted only if the ground movements and risk level of damage are within the range of engineering safety. The development of advanced computational tools allows delicate calculation of these ground movements induced by deep excavations via numerical modelling. In this paper, both empirical and advanced numerical methods are presented. Is specific procedure is applied to justify the engineering design of the extension line construction of a metro project from PK0 + 344.00 to PK0 + 407.00 with the cut-and-cover excavation method by assessing the risk of building damage via numerical modelling As for the damage criterion, different theories are reviewed and analysed to select the damage criterion. e details will be described later in this paper. is specific procedure is applied to justify the engineering design of the extension line construction of a metro project from PK0 + 344.00 to PK0 + 407.00 with the cut-and-cover excavation method by assessing the risk of building damage via numerical modelling
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
