Numerical modeling of pre-built and prestressed innovative support system for super cross-section highway tunnel with lower flat-ratio

YUAN Yong; WANG Sheng-hui

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Numerical modeling of pre-built and prestressed innovative support system for super cross-section highway tunnel with lower flat-ratio

更新时间：2026-06-25

- Numerical modeling of pre-built and prestressed innovative support system for super cross-section highway tunnel with lower flat-ratio
- Vol. 29, Issue 1, (2008)
- 作者机构：
  
  1. 同济大学土木工程学院,上海,200092
  2. 国家开发银行湖南分行,长沙,410007
- 作者简介：
- 基金信息：
- DOI：
  CLC： U451
- Online First：18 July 2013，
  
  Published：2008
- 稿件说明：
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YUAN Yong, WANG Sheng-hui. Numerical modeling of pre-built and prestressed innovative support system for super cross-section highway tunnel with lower flat-ratio[J]. 2008, 29(1).
DOI：

YUAN Yong, WANG Sheng-hui. Numerical modeling of pre-built and prestressed innovative support system for super cross-section highway tunnel with lower flat-ratio[J]. 2008, 29(1). DOI：

摘要

为适应日益增长的经济和交通发展需求，修建以4车道公路隧道为代表的超大断面低扁平率公路隧洞的需求初露端倪，这类隧道的低扁平率特征使传统的隧道支护体系面临许多困难，急待开发新型的隧洞支护体系。采用FLAC数值模拟平台研究了基于隧洞“先成结构法”支护理念的“先成预应力结构”新型支护体系在提高超大断面低扁平率公路隧洞洞室稳定性方面的效果，为“先成结构法”支护理念在超大断面低扁平率公路隧洞中的应用实施提供了有力的支持。

Abstract

To satisfy the rapid development of economy and traffic

super cross-section highway tunnel with lower flat-ratio such as four-lane tunnel seems very necessary; and its lower flat-ratio makes that the traditional tunnel support system is difficult to support it. New support system has to be researched to enhance present status. The effects of an innovative “pre-built and prestressed” support system that come of “pre-built” ideology in enhancing the stability of super cross-section highway tunnel with lower flat-ratio have been studied by numerical modeling with FLAC

which are significant for the practice of “pre-built” ideology in super cross-section highway tunnel with lower flat-ratio.

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