Reliability analysis of wet-sprayed fiber reinforced concrete lining structure within soft and weak rock mass using response surface method

HUA Yuan; ZHOU Tai-quan; Lü Bao-hua

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Reliability analysis of wet-sprayed fiber reinforced concrete lining structure within soft and weak rock mass using response surface method

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- Reliability analysis of wet-sprayed fiber reinforced concrete lining structure within soft and weak rock mass using response surface method
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  1. 江南大学环境与土木工程学院,无锡,214122
  2. 中铁19局集团第5工程有限公司,大连,116000
- 作者简介：
- 基金信息：
- DOI：
  CLC： U459
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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HUA Yuan, ZHOU Tai-quan, Lü Bao-hua. Reliability analysis of wet-sprayed fiber reinforced concrete lining structure within soft and weak rock mass using response surface method[J]. 2008, 29(S1).
DOI：

HUA Yuan, ZHOU Tai-quan, Lü Bao-hua. Reliability analysis of wet-sprayed fiber reinforced concrete lining structure within soft and weak rock mass using response surface method[J]. 2008, 29(S1). DOI：

摘要

由于湿喷纤维混凝土支护结构物理、力学参数和喷层厚度的离散性及混凝土强度破坏准则难以用支护材料参数显式表达，对该类隧道支护结构进行可靠度分析十分困难，提出采用响应面方法计算湿喷纤维混凝土支护结构的可靠度方法，并给出了计算流程，其中围岩-支护结构的确定性分析采用非线性有限元方法，可靠度分析采用2次响应面法。以赣州－龙岩铁路金华山软岩隧道湿喷纤维混凝土支护结构为研究对象，对该支护结构的可靠度进行分析与计算。分析结果表明，金华山隧道湿喷纤维混凝土支护结构可靠度指标高，处于安全状态。

Abstract

Due to the diversity of the wet-sprayed fiber reinforced concrete lining structure physico-mechanical parameters and the difficulty of the explicit expression of limit state failure function for concrete strength

the reliability analysis for the wet-sprayed concrete lining structure is difficult to perform. The response surface method is proposed to calculate the reliability of the wet-sprayed concrete lining structure. The calculation process is given.In the determination calculation of the rockmass and tunnel lining structure

the nonlinear finite element method is used while the second order response method is used in the reliability analysis. As a case study

the wet-sprayed fiber reinforced concrete tunnel lining structure for Ganzhou-Longyan Jinhuashan Railway tunnel in soft and weak rockmass

the reliability analysis for the tunnel lining structure is performed using the method proposed. The numerical analysis result shows that the reliability index for the wet-sprayed concrete tunnel lining structure is higher and the tunnel lining structure is in safe state.

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