Download - Three-Dimensional Numerical Investigations of Ground Movements of Taipei 101 Deep Excavation
Three-Dimensional Numerical Investigations of Ground Movements of Taipei 101 Deep Excavation
國立中興大學水土保持學系研究所九十九學年度第二學期
專討四授課老師 : 陳文福 教授指導老師 : 林德貴 教授
學生 : 蔡怡臻 學號 : 7098042018
2011/6/10土石流防災中心地下室
Methodology
Soil Model
Field Description and Construction
Introduction
OutlineOutline
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Introduction
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IntroductionIntroduction
Based on the actual construction sequences, a three-dimensional (3-D) deformation analysis was performed to simulate the ground movement of deep excavation in Taipei 101 construction project. In 3-D analysis, an optimized geometry model and mesh density was adopted according to the convergence study to achieve a computation with high efficiency and accuracy.
This paper is divided into three parts: data collection, calibration of 3-D numerical model of Taipei 101 deep excavation and investigations of various numerical models.
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Methodology
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Flow ChartFlow Chart
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Data Collection of Taipei 101 Deep Excavation
Site Investigations and Soil Tests(1) boring and exploration of subsoil(2) laboratory tests (DST, TRT, PMT)(3) field tests (SPT, PM, LLT, VST)
Deep Excavation Construction(1) tower zone and podium zone(2) construction sequence(3) diaphragm wall (D-wall)(4) buttress wall(5) supporting system (bottom-up and top-down)(6) bored pile foundation
Monitoring and Instrumentation(1) lateral displacement(2) ground settlement(3) pore water pressure(4) internal force of diaphragm wall and supporting strut
Data Processing(1) photos (construction and field site)(2) lateral displacement-depth(3) ground settlement-distance(4) pore water pressure-time(5) material model parameters (soil, reinforced concrete, steel structure)
A
B
Calibration of 3-D Numerical Model of Taipei 101 Deep Excavation
Establishment of 3-D Numerical Model(1) full-scale (tower zone &podium zone)(2) retaining system(3) supporting system(4) foundation system
Numerical Results Coincidewith Measurements
(1) soil model parameters(2) structural model parameters
(1) dimension of geometry(2) initial condition(3) boundary condition(4) construction sequences
Parametric Study of Deep Excavation(1) soil model parameters(2) structral model parameters
Sensitivity Analysis(1) lateral movement – depth(2) ground settlement - distance
Evaluation of the Effects of Soil and Structural Model Parameters
Sensitivity Parameters(1) (h)soil
(1) (h)structure
Yes
No Noadjustment adjustment
B
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Flow ChartFlow Chart
Field Description and Construction
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Brief of deep excavation of Taipei 101 Brief of deep excavation of Taipei 101 construction projectconstruction project
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Excavation configuration and selected Excavation configuration and selected zones and sections for numerical analyseszones and sections for numerical analyses
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Podium Tower
Construction ProcedureConstruction Procedure
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Soil Model
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SoilSoil ModelModel
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Soft Soil Creep Model
Hardening Soil Model with small strain
Mohr-Coulomb
Soil ModelSoil Model
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Hardening Soil Model with small strain
Soil ModelSoil Model
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Soft Soil Creep Model
Cc
Cs
C α
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