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What Voids a Retaining Wall's Stability?

机译：挡土墙稳定是什么？

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摘要

The project's objective was to investigate and remediate distressed MSE walls at a highway interchange system with multiple direct connectors supported by MSE Walls. The contract scope was to develop the construction plans, specifications and engineer's estimate and provide engineering support during construction. The investigation utilized advanced in-situ testing, laboratory testing, and detailed modeling/analysis to determine the root cause of distress for walls as well as secondary distress features that have contributed to the walls degraded performance. Remediation alternatives presented to the client with their cost and value helped develop the comprehensive repair plans. The holistic design approach addressed structural, drainage, paving, geotechnical, roadway, and environmental problem areas. This presentation will discuss major design items such as void remediation within the reinforced zone of the MSE wall, installation of underdrains in an existing wall, and restoration of flexibility to the MSE wall system. Additionally, the presentation will highlight construction issues encountered and lessons learned for construction plan development and communication with the different teams involved in the construction.
机译：该项目的目的是调查在与MSE墙支持多个直接连接高速公路立交系统[修复心疼MSE的墙壁。合同范围是开发建设规划，规范和工程师的估算及施工过程中提供工程技术支持。调查使用先进原位测试，实验室测试，和详细的建模/分析，以确定窘迫的根本原因的墙壁以及那些向壁恶化的性能贡献次级窘迫特征。呈现给他们的成本和价值客户的替代补救措施帮助开发了全面修复计划。在整体设计方法解决结构，给排水，路面，岩土工程，道路和环境问题领域。本报告将讨论重大设计项目，如MSE墙的钢筋区域内无效整治，在现有的墙面安装排水系统，以及灵活的MSE墙系统恢复。此外，该演示将突出遇到的施工问题和教训，施工计划的发展和与参与建设的不同团队沟通的经验教训。

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