Browse > Article

Modelling of Soil Extraction Technique for Restoration of Building Tilt from Geotechnical Centrifuge Tests  

Lee Cheol Ju (Construction Division, Samsung Heavy Industries Co., Ltd.)
Ng C.W.W. (Dept. of Civil Engrg., Hong Kong Univ. of Science and Technology)
Publication Information
Journal of the Korean Geotechnical Society / v.21, no.2, 2005 , pp. 121-126 More about this Journal
Abstract
It is not uncommon to observe tilt of buildings and towers as a result of unexpected differential foundation settlements. Over the years, a number of engineering methods including the soil extraction technique have been attempted to reduce inclination of buildings and towers. In this research, a series of novel geotechnical centrifuge model tests by using a state-of-the-art in-flit robotic manipulator have been conducted to study key factors which govern the restoration of building tilts. In the centrifuge model tests, the robotic manipulator was used to drill and extract soil in-flight near an initially tilted model building. The soil extraction was to induce stress release, thereby mitigating the inclination of the model building. Insights into the effects of different configurations, soil density and sequences of drilling observed during the centrifuge model tests on the restoration of the model building are to be investigated.
Keywords
Citations & Related Records
연도 인용수 순위
  • Reference
1 Ranzani, S. M. T. (2001), Stabilisation of leaning structures: the Tower of Pisa case, Geotechnique 51, No.7, 647-648   DOI   ScienceOn
2 Tamez, E., Ovando, E. & Santoyo, E. (1997), Underexcavation of Mexico City's Metropolitan Cathedral and Sagrario Church. Proc. XIV ICSMFE, Hamburg. 2105-2126
3 Ng, C. W. W., Lee, C. J., Zhou, X. W., and Xu, G. M. (2005), Novel centrifuge simulations of restoration of building tilt, 16th Int. Conf. on Soil Mechanics and Geotechnical Engineering, Osaka, Japan. (in press)
4 Liu, Z. D. (1990), A new technique of remediation of leaning building -Relieving subgrade stress, Chinese Journal of Soil Engineering and Foundation 4, No.1, 1-6. (in Chinese)
5 Ng, C. W. W., Van Laak, P. A., Zhang, L. M., Tang, W. H., Zong, G. H., Wang, Z. L., Xu, G. M., and Liu, S. H. (2002), Development of a four-axis robotic manipulator for centrifuge modeling at HKUST. Proc. Int. Conf. on Physical Modelling in Geotechnics, St. John's Newfoundland, Canada. 71-76
6 Amirsoleymani, T. (1991), Removing soil layers under foundations to rotate buildings, Proc. 9th Asian Regional Conf. on. Soil Mechanics and Foundation Engineering, 2, 201-204
7 Jamiolkowski, M. B. (2001), The leaning Tower of Pisa-Present situation, A look back for future geotechnics. (Editors, Wu, Zhang & Woods), Rotterdam: A. A. Balkema, 93-129
8 Ng, C. W. W., Van Laak, P. Tang, W. H., Li, X. S., and Zhang, L. M. (2001), The Hong Kong Geotechnical Centrifuge. Proc. 3rd Int. Conf. Soft Soil Engineering, Dec., Hong Kong. 225-230