论文部分内容阅读
第一章总则第40条适用范围本篇中规定了有关用盾构法修建的园形隧道衬砌的设计和制造的主要条款。[解释] 用盾构法修建的铁路隧道的形状多为园形,故本篇中也以园形断面为对象,规定了必要的条款。但是,即使断面是马蹄形等形状,如认为本指南中某些条款是适合的,也可使用。虽然目前也有以就地浇注的混凝土作为用盾构法修建的隧道衬砌的主要结构的实例,但尚未获得广泛应用。本篇中,在把预制构件作为衬砌的主要构件而规定细则的同时,对第有关二次衬砌没计的条款也作了规定。
Chapter I General Provisions Article 40 Scope of application This section sets out the main provisions concerning the design and manufacture of circular tunnel linings constructed by the shield method. [Explanation] The shape of a railway tunnel constructed by the shield method is mostly circular in shape, so this section also sets the necessary section for the circular section. However, even if the cross section has a horseshoe shape or the like, some terms of this guideline may be used if they are deemed appropriate. Although cast concrete has been used as an example of the main structure of a tunnel lining constructed by a shield method, it has not yet been widely used. In this section, the provisions relating to the secondary lining are also provided for while prescribing the prefabricated components as the main components of the lining.