1.1 本规范涵盖了拟采用顶管技术安装的圆形混凝土管的制造要求。这种类型的管道的典型用途是输送污水、工业废物、雨水、公用设施或人员。 1.2 本规范的要求旨在补充预制混凝土管道的现有制造标准，并提供将使用顶升技术安装的管道所需的额外制造细节。混凝土管道的母制造标准在本文件中表示为“指定混凝土管道制造标准”。当混凝土管道用于顶升时，其中包含的要求应补充指定的混凝土管道制造标准。 注1: 本规范是使用顶升技术安装的混凝土管道的制造和采购规范，将与指定的混凝土管道制造标准一起使用。这种管道可能需要特殊设计来承受预期的纵向载荷。除了直埋管道所需的额外计算和信息外，还需要确定最大顶推力。为了计算容许顶推力，可参考ASCE 27。 注2: 当使用非开挖方法安装管道时，本标准可用于补充预制混凝土管道的现有标准。此类“指定混凝土管道标准”包括但不限于: C14 ， C76 ， C361 ， C655 ， C985 ， C1417 ， C1765 和 C1846/C1846M 。 1.3 顶管有多种形式。其中最先进的是微型隧道管，它属于自己的一个类别。由于微隧道中使用了高度精确的制导系统，管道可用于更长的推进长度、更具挑战性的配置和土壤条件。本标准不涉及用于微隧道的混凝土管道。对于微隧道中使用的混凝土管道，鼓励工程师、生产商和安装商共同确定每个项目的具体需求。 1.4 在一些应用中，混凝土管被用作输送管，并在土壤被清除后被推入套管。由于这些类型的装置的要求与典型的顶升装置的要求不同，因此本标准未具体说明这些应用。 1.5 单位-- 以英寸-磅为单位的数值应视为标准。本标准中不包括其他计量单位。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers the manufacturing requirements for circular concrete pipe that is intended to be installed using pipe jacking techniques. The typical use of this type of pipe is for the conveyance of sewage, industrial wastes, storm water, utilities, or personnel. 1.2 The requirements of this specification are intended to supplement the existing manufacturing standards for precast concrete pipe and provide the additional manufacturing details required for pipe that will be installed using jacking techniques. The parent manufacturing standard for the concrete pipe is denoted as the “designated concrete pipe manufacturing standard” throughout this document. The requirements included within shall supplement the designated concrete pipe manufacturing standard when the concrete pipe is to be used for jacking. Note 1: This specification is a manufacturing and purchase specification for concrete pipe installed using jacking techniques, to be utilized in conjunction with the designated concrete pipe manufacturing standard. It is possible that such pipe will require a special design to withstand the anticipated longitudinal loading. Additional calculations and information beyond what is required for a direct bury pipe are required to establish maximum jacking forces. For calculating allowable jacking forces, ASCE 27 may be referenced. Note 2: This standard may be used to supplement existing standards for precast concrete pipe when the pipe will be installed using trenchless methods. Such “designated concrete pipe standards” include, but are not limited to: C14 , C76 , C361 , C655 , C985 , C1417 , C1765 , and C1846/C1846M . 1.3 There are many forms of pipe jacking. The most advanced of these, and in a category all its own, is microtunneling pipe. With the highly accurate guidance systems used in microtunneling, the pipes are utilized in longer push lengths and more challenging configurations and soil conditions. This standard does not address concrete pipe used for microtunneling. For concrete pipe used in microtunneling, the engineer, producer, and installer are encouraged to work together in establishing the specific needs of each project. 1.4 There are applications where concrete pipe is utilized as a carrier pipe and is pushed through a casing after the soil has already been removed. These applications are not specifically addressed by this standard since the requirements for these types of installations differ from those for a typical jacking installation. 1.5 Units— The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.