1.1 本规程主要涵盖按照规范生产的波纹钢结构板管道、管拱、拱和地下通道的正确安装程序、土壤和土壤放置 A761/A761M ，在沟槽或路堤安装中。本规程还涵盖了结构板的安装，用于不涉及回填或土壤-结构相互作用的替代用途。 1.2 典型沟槽安装和典型路堤（投影）安装如所示 无花果。1和 2. 分别地本文所述的结构板结构是指工厂制造的板状结构，并在现场用螺栓固定在一起，以提供所需的形状、尺寸和结构长度。本规程适用于按照规程设计的结构 A796/A796M . 图1 典型沟槽安装 图2 典型路堤（投影）安装 1.3 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。 每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 1.3.1 为清晰起见，文本中的括号中显示了国际单位制，但当使用国际单位制进行安装时，这些数值是适用的。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 结构板结构在结构上起着柔性环的作用，由压实的周围土壤支撑并与之相互作用。因此，结构周围的土壤是结构系统的组成部分。因此，重要的是确保土壤结构由可接受的材料组成，并且结构良好。使用测试方法现场验证土壤结构的可接受性 D1556 , D2167 , D6938 或 D2937 ，并将结果与任一试验方法进行比较 D698 或 D1557 根据每个项目的规范，是安装可接受结构的最常见基础。根据使用的回填材料，也可以使用工程师可接受的其他定性或基于性能的方法。本规程未规定所需的密度和测量方法，但必须在每个项目的规范中确定。 4.2 结构板结构偶尔也用于不需要土壤的替代应用中- 支撑结构相互作用。根据应用情况，结构可提供临时或永久支撑、限制、隐蔽、屏蔽或与土壤-结构相互作用无关的其他功能。所需支架的性质、设计要求和结构的适当尺寸将由项目设计工程师确定，不属于本标准的范围。

1.1 This practice primarily covers procedures, soils, and soil placement for the proper installation of corrugated steel structural plate pipe, pipe-arches, arches, and underpasses produced to Specification A761/A761M , in either trench or embankment installations. This practice also covers installation of structural plate for alternative uses that do not involve backfilling or soil-structure interaction. 1.2 A typical trench installation and a typical embankment (projection) installation are shown in Figs. 1 and 2 , respectively. Structural plate structures as described herein are those structures factory fabricated in plate form and bolted together on site to provide the required shape, size, and length of structure. This practice applies to structures designed in accordance with Practice A796/A796M . FIG. 1 Typical Trench Installation FIG. 2 Typical Embankment (Projection) Installation 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3.1 SI units are shown in brackets in the text for clarity, but they are the applicable values when the installation is to be performed using SI units. 1.4 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. 1.5 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 Structural plate structures function structurally as a flexible ring that is supported by and interacts with the compacted surrounding soil. The soil placed around the structure is thus an integral part of the structural system. It is therefore important to ensure that the soil structure is made up of acceptable material and is well constructed. Field verification of soil structure acceptability using Test Methods D1556 , D2167 , D6938 , or D2937 , as applicable, and comparing the results with either Test Methods D698 or D1557 , in accordance with the specifications for each project, is the most common basis for installation of an acceptable structure. Depending on the backfill used, other qualitative or performance-based methods acceptable to the engineer may also be used. The required density and method of measurement are not specified by this practice, but must be established in the specifications for each project. 4.2 Structural plate structures are also occasionally used in alternative applications not requiring soil-structure interaction for support. Depending on the application the structure may provide temporary or permanent support, confinement, concealment, shielding, or other functions not related to soil-structure interaction. The nature of support required, design requirements, and proper sizing of the structure will be determined by a project design engineer and is not part of the scope of this standard.