Research

Important aspects when modelling the interaction between surface structures and tunnelling in sand


Reference:

Giardina, G., DeJong, M. J. and Mair, R. J., 2014. Important aspects when modelling the interaction between surface structures and tunnelling in sand. In: Yoo, C., Park, S.-W., Kim, B. and Ban, H., eds. 8th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, TC204 ISSMGE - IS-SEOUL 2014, 2014-08-25 - 2014-08-27. Leiden, The Netherlands: CRC Press/Balkema, pp. 263-268.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below. (Contact Author)

Related URLs:

Abstract

Tunnelling in urban areas continues to increase and has highlighted the need for a better understanding of the impact of tunnel excavations on existing buildings. This paper considers the influence of surface structures on ground displacements caused by tunnelling in sand through finite element modelling and centrifuge testing. First, the importance of modelling assumptions is evaluated by comparing centrifuge modelling results to finite element modelling results for various soil constitutive models: both a Young's modulus that linearly increases with depth and a power law relation between the soil stiffness and stresses are considered. Second, the most effective soil constitutive model was used to perform a sensitivity study on the effect of different factors governing the structural response. In particular, the effect of the building stiffness and weight on the modification of soil displacements is investigated by introducing a simple surface structure. The use of a no-tension interface between the building and the soil was found to be essential to investigate the effect of weight on gap formation between the soil and the structure, as observed during the experimental tests. Results show the importance of considering the relation between the building weight and the relative stiffness between the building and the soil when assessing the structural response.

Details

Item Type Conference or Workshop Items (UNSPECIFIED)
CreatorsGiardina, G., DeJong, M. J. and Mair, R. J.
EditorsYoo, C., Park, S.-W., Kim, B. and Ban, H.
Related URLs
URLURL Type
http://www.scopus.com/inward/record.url?scp=84907315917&partnerID=8YFLogxKUNSPECIFIED
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
StatusPublished
ID Code53795

Export

Actions (login required)

View Item