摘要
研究旨在探讨于软土地盘进行基坑工程时,考虑空间变异性对于基坑隆起分析的影响程度。空间变异性对于基坑工程隆起分析的影响研究相当新颖,采用台湾建筑技术规则之隆起破坏分析法和随机场理论,透过蒙特卡罗模拟,可以同时考虑岩土材料性质的不确定性以及空间变异性。采用一个台北盆地实际的深基坑工桯隆起破坏案例,利用研究发展的可考虑空间变异性分析模式进行分析,和传统分析方法相较,分析结果显示考虑空间变异性其隆起破坏机率会降低。
The effect of spatial variability on analysis of excavation-induced basal-heave in soft ground in investigated. This kind of study on the effect of spatial variability on basal-heave analysis of braced excavation is very innovative. The basal-heave analysis proposed by the Taiwan building code and the random field theory are adopted to be able to simultaneously consider the uncertainties of geomaterials and spatial variability in such analysis using the Monte Carlo simulation. An actual excavation case, in which the basal-heave occurs, located in Taipei basin is used to perform the intended analysis of basal-heave on this case. Compared with the conventional analysis method for basal-heave, the analysis results revel that the probability of failure against basal-heave will reduce when the spatial variability is considered in the analysis.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2013年第S2期542-545,共4页
Chinese Journal of Geotechnical Engineering
基金
National Science Council(NSC 101-2221-E-146-008)
关键词
空间变异性
基坑
隆起分析
软土
spatial variability
braced excavation
basal-heave analysis
soft ground
