A reliability-based design (RBD) method for rigid pipes installed using induced trench with tire-derived aggregates (TDA) inclusion is introduced in this study. The design process is to find an optimal set of the TDA inclusion dimension (i.e., width B and thickness t) that satisfies the 0.01-inch crack serviceability limit state and ultimate failure limit state requirements of the pipe, and achieves a target probability of failure or target reliability index using Monte Carlo simulation. The uncertainty and load-dependent compressibility of TDA inclusion are considered. Two design examples are provided, which show that the serviceability limit state design controls the finial design of induced trench installation (ITI) pipes. Increasing the thickness of TDA inclusion is helpful to improve reliability of the pipes, while expanding the width of TDA inclusion might increase probability of failure. The sensitivity and flexibility of using different target reliabilities, parameter uncertainties and calculation models in the proposed RBD method are examined. The results show the importance of considering the variability and load-dependent compressibility of TDA in the proposed RBD method for the design of ITI pipes with TDA inclusions.

本研究介绍了一种基于可靠性的设计 (RBD) 方法，用于使用包含轮胎衍生骨料 (TDA) 的诱导沟槽安装的刚性管道。设计过程是寻找一组最优的 TDA 夹杂物尺寸（即宽度B和厚度t) 满足管道 0.01 英寸裂纹使用极限状态和最终失效极限状态要求，并使用蒙特卡罗模拟达到目标失效概率或目标可靠性指标。考虑了 TDA 夹杂物的不确定性和与载荷有关的可压缩性。提供了两个设计实例，表明使用极限状态设计控制诱导沟槽安装 (ITI) 管道的最终设计。增加TDA夹杂物的厚度有助于提高管道的可靠性，而扩大TDA夹杂物的宽度可能会增加失效概率。检验了在提出的 RBD 方法中使用不同目标可靠性、参数不确定性和计算模型的敏感性和灵活性。