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7. Engineering Geological Problems Caused by City Planning and its Management Countermeasure

Author

Huang Junpeng, Zhang Xin-gui, Yi Nianping, and Wang Yang

Subjects
Harmony (color), Architectural engineering, Countermeasure, Work (electrical), City development, Urban planning, media_common.quotation_subject, Foundation (engineering), Function (engineering), Urban construction, media_common
Abstract

Geological environment condition is the basic factor for city existence and stability and the foundation for city construction. In city construction belts with comparably stable earth crust and good geological environment is preferable. Hence, engineering geological condition must be taken into consideration during urban construction. And city is a place where the geological environment is much influenced by human activities whose forming type, function, land used and development have a close relationship with geological environment. To survive and get maximum benefit, human make the best of environment to construct in many ways. Nowadays city planning and construction is developed from simplex plane style to the dimensional style. Increase of high-rising, unceasing construction of substructure work, development of higher, deeper, longer, larger, heavier, clustered urban construction arouse engineering geological problems brought by city construction. Characteristic of city construction is that it comes along with city and its harmfulness increases with city development. Yet an effective management way is to keep to the conception that human and geological environment should be in harmony among planning, construction and geological environment.

Published
2010

10. Numerical Analysis for Liquefaction Deformation of Low Embankment on Soft Foundation Based on Water Level Changes in Coastal Highway.

Author

Zhang, Xingui, Zhu, Jiaxiong, Zeng, Yi, Jiang, Peng, Yi, Nianping, Yan, Lier, and Li, Yijia

Subjects
EMBANKMENTS, WATER levels, PORE water pressure, NUMERICAL analysis, DEFORMATIONS (Mechanics), SUSTAINABLE development
Abstract

Zhang, X.-G.; Zhu, J.-X.; Zeng, Y.; Jiang, P.; Yi, N.-P.; Yan, L.-E., and Li, Y.-J., 2019. Numerical analysis for liquefaction deformation of low embankment on soft foundation based on water level changes in coastal highway. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal Research: Engineering, Industry, Economy, and Sustainable Development. Journal of Coastal Research, Special Issue No. 94, pp. 321–326. Coconut Creek (Florida), ISSN 0749-0208. This paper mainly studies the water level change of coastal soft foundation by taking the soft foundation in the liquefaction zone of the Xiniujiao-Dafengjiang section of the coastal first-class highway in Guangxi, China as the research object. To this end, by arranging the saturated silt soft foundation of 6 1.5m inverted trapezoidal gravel wall low embankment structure in the vertical direction, the numerical simulation method was adopted to simulate its liquefaction deformation of the soft foundation problem under the traffic load in the working condition I (constant annual water level) and working condition II (temporary water level rise), and also judge its liquefaction potential, the development and dissipation of the pore water pressure, and the excess pore pressure ratio. Finally, the results show that under different water levels, the gravel-paving on embankment can effectively improve the liquefaction-resistant ability of the soft foundation and improve the uneven settlement of the original compacted fill embankment. [ABSTRACT FROM AUTHOR]

Published
2021
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