1.1 本规程涵盖了人员进入或远程检查已安装钢筋混凝土管道的检查和验收要求，如所示 图1和 2. 分别。 1.2 本规范的范围旨在进行与安装相关的观察，并假设已完成安装前检查。 1.3 钢筋混凝土涵洞、雨水管和雨水管应按照规范制造 C76 , C506 , C507 , C655 , C1417 ，或 C1846/C1846M 并按照AASHTO R 73进行验收。 本规范仅适用于重力、无压雨水排放应用。 1.4 除非情有可原，否则应使用人员条目进行此类检查。除非业主或工程师另有规定，否则远程检查可用于直径为30英寸[750毫米]及以下的管道。 1.5 手动检查已安装管道的通道应遵循OSHA 29 CFR第1926部分AA子部分关于进入密闭空间的规定。 然而，本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。 本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 这种做法不包括变形或挠度评估。混凝土管被归类为刚性结构，因为它们在开裂前在负载下不会明显弯曲或偏斜。由于这些事实，在评估混凝土管道时，形状评估几乎没有价值。 1.7 以英制/美制或[SI单位]表示的值应单独视为标准值。 国际单位制显示在括号中。每个系统中所述的值可能不是完全等效的；因此，每个系统都应独立使用。 1.8 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。 =====意义和用途====== 4.1 对已安装的钢筋混凝土管的检查验证了产品的正确安装，并为进一步的比较评估设定了阈值。 4.2 业主在编制项目规范以及在管道安装后检查期间识别、评估和解释观察结果时，这种做法非常有用。

1.1 This practice covers the requirements for inspection and acceptance of installed reinforced concrete pipe by either person-entry, or remote inspection as shown in Figs. 1 and 2 , respectively. 1.2 The scope of this specification is intended for installation related observations and assumes that pre-installation inspection has been completed. 1.3 The reinforced concrete culvert, storm drain and storm sewer pipe shall be manufactured in accordance with Specification C76 , C506 , C507 , C655 , C1417 , or C1846/C1846M and accepted in accordance with AASHTO R 73. This specification shall only be used for gravity, non-pressure storm drainage applications. 1.4 Person Entry shall be used unless extenuating circumstances preclude this type inspection. Remote inspection is acceptable for use for pipe diameters of 30 in. [750 mm] and smaller unless otherwise specified by owner or engineer. 1.5 Access of installed pipe for manual inspection shall follow OSHA 29 CFR PART 1926 SUBPART AA regulations for confined space entry. However, this standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This practice does not cover deformation or deflection assessment. Concrete pipe is classified as a rigid structure because they do not bend or deflect appreciably under load before cracking. Due to these facts shape evaluation are of little or no value when evaluating concrete pipe. 1.7 The values stated in either Imperial/US or [SI units] are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. 1.8 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. ====== Significance And Use ====== 4.1 The inspection of installed reinforced concrete pipe verifies proper installation of the product and establishes thresholds for comparison further evaluation. 4.2 This practice is useful as a reference by an owner in preparing project specifications and to identify, evaluate and interpret observations during post installation inspections of pipe.