Failure Probability of Transverse Surface Settlement Induced by EPB Shield Tunneling in Clayey Soils: Fid-Bau Portal

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Failure Probability of Transverse Surface Settlement Induced by EPB Shield Tunneling in Clayey Soils

Zhou, Jianjun / Chen, Diming / Wang, Dongyuan / Zhang, Lu-Lu / Zhang, Li-Min

This paper compiles a database consisting of 16 tunnel excavation projects in clayey soils using the earth pressure balance (EPB) tunneling method. Statistical analysis of the data is performed and the probability distributions for ground loss ratio $η$ and fitting parameter $n$ , which are two major parameters in Peck’s formula for transverse surface settlement, are identified based on 78 and 29 points of field data, respectively. The correlation between $η$ and $n$ is fitted based on the data and its influences on the failure probability is evaluated. A serviceability performance function is modeled based on Peck’s settlement formula, and the serviceability failure probability is defined and analyzed with Monte Carlo simulations. A series of design charts, in terms of tunnel diameter, cover/diameter ratio, $η$ , and $n$ , are generated for practical uses without running Monte Carlo simulations.

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Failure Probability of Transverse Surface Settlement Induced by EPB Shield Tunneling in Clayey Soils

Zhou, Jianjun / Chen, Diming / Wang, Dongyuan / Zhang, Lu-Lu / Zhang, Li-Min

This paper compiles a database consisting of 16 tunnel excavation projects in clayey soils using the earth pressure balance (EPB) tunneling method. Statistical analysis of the data is performed and the probability distributions for ground loss ratio $η$ and fitting parameter $n$ , which are two major parameters in Peck’s formula for transverse surface settlement, are identified based on 78 and 29 points of field data, respectively. The correlation between $η$ and $n$ is fitted based on the data and its influences on the failure probability is evaluated. A serviceability performance function is modeled based on Peck’s settlement formula, and the serviceability failure probability is defined and analyzed with Monte Carlo simulations. A series of design charts, in terms of tunnel diameter, cover/diameter ratio, $η$ , and $n$ , are generated for practical uses without running Monte Carlo simulations.

Failure Probability of Transverse Surface Settlement Induced by EPB Shield Tunneling in Clayey Soils

Zhou, Jianjun / Chen, Diming / Wang, Dongyuan / Zhang, Lu-Lu / Zhang, Li-Min

This paper compiles a database consisting of 16 tunnel excavation projects in clayey soils using the earth pressure balance (EPB) tunneling method. Statistical analysis of the data is performed and the probability distributions for ground loss ratio $η$ and fitting parameter $n$ , which are two major parameters in Peck’s formula for transverse surface settlement, are identified based on 78 and 29 points of field data, respectively. The correlation between $η$ and $n$ is fitted based on the data and its influences on the failure probability is evaluated. A serviceability performance function is modeled based on Peck’s settlement formula, and the serviceability failure probability is defined and analyzed with Monte Carlo simulations. A series of design charts, in terms of tunnel diameter, cover/diameter ratio, $η$ , and $n$ , are generated for practical uses without running Monte Carlo simulations.

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Titel:

Failure Probability of Transverse Surface Settlement Induced by EPB Shield Tunneling in Clayey Soils

Beteiligte:

Zhou, Jianjun (Autor:in) / Chen, Diming (Autor:in) / Wang, Dongyuan (Autor:in) / Zhang, Lu-Lu (Autor:in) / Zhang, Li-Min (Autor:in)

Erschienen in:

ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering ; 4

Erscheinungsdatum:

30.06.2018

ISSN:

DOI:

https://doi.org/10.1061/AJRUA6.0000981

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Unbekannt

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