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首页> 外文会议>American Society of Civil Engineers(ASCE) International Conference on Pipeline Engineering and Construction v.2; 20030713-20030716; Baltimore,MD; US >The Design of Non-Circular Linings
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The Design of Non-Circular Linings

机译：非圆形衬里的设计

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The French National project of research and experimentation named RERAU (Rehabilitation of Urban Network Sewers) has developed a design method for non-circular linings subject to groundwater pressure. The method is based on an analytical approach and gives a formula, recently obtained by O. Thepot, for the buckling pressure of a close-fit non-circular lining subject to external water pressure (with initial annular gap). The method puts the liners into two categories according to their shapes: "critical linings" that are liable to buckle but where the lobe remains localized and "sub-critical linings" that do not buckle but where the lobe may extend to the entire lining. This paper presents the complete analytical method for the critical linings.
机译：法国国家研究与实验项目RERAU（城市网络下水道修复）已经开发出一种针对地下水压力作用的非圆形衬砌的设计方法。该方法基于一种分析方法，并给出了O. Thepot最近获得的公式，该公式适用于紧密配合的非圆形衬砌在外部水压作用下（具有初始环形间隙）的屈曲压力。该方法根据衬里的形状将衬里分为两类：易于弯曲但凸耳仍位于局部的“关键衬里”和不弯曲但凸耳可延伸至整个衬里的“亚临界衬里”。本文介绍了关键衬砌的完整分析方法。

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