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Best Practices for Conducting Pre-Construction Surveys: Lessons Learned From Construction Claims

机译：进行施工前调查的最佳实践：从施工索赔中吸取的教训

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摘要

Demolition, excavation, and construction that are performed in close proximity to existing buildings and structures, and in particular those in an urban environment, may cause damage to the surrounding structures ranging from the loss of serviceability to complete collapse. In these instances, disputes often arise over the cause and the extent of the damage and also the roles and responsibilities of the contractors engaged in the work. A forensic investigation of the alleged damage, and in particular, the cause and the extent of the damage and a determination of new versus pre-existing damage after the construction has begun, or after it has been completed, can be challenging. One approach is to compare the alleged damage with those conditions, or the lack of conditions, identified in the pre-construction survey report. This paper surveys the industry literature on the code requirements for conducting pre-construction surveys, practices for conducting condition surveys used in the assessment and the rehabilitation of existing structures, and types of damage and the causes of that damage that are often alleged in construction claims arising from adjacent construction. This paper also compiles some of the best practices for conducting pre-construction surveys and for reporting the findings. These practices are taken from the lessons learned from actual construction claim disputes.
机译：与现有建筑物和结构（尤其是城市环境中的建筑物和结构）非常接近的拆除，开挖和施工可能会对周围结构造成破坏，包括丧失使用性到彻底倒塌。在这些情况下，通常会就损坏的原因和程度以及从事这项工作的承包商的角色和责任引起争执。法医调查指称的损坏，尤其是损坏的原因和程度，以及在施工开始或完成后确定新的损坏与已有的损坏，可能是一项挑战。一种方法是将所谓的损坏与在施工前调查报告中确定的那些状况或缺乏状况进行比较。本文调查了有关进行施工前检验的代码要求，用于评估和修复现有结构的条件调查实践的行业文献，以及在施工索赔中经常声称的损坏类型和损坏原因产生于邻近建筑。本文还汇编了一些进行施工前调查和报告调查结果的最佳实践。这些做法是从实际的建筑索赔纠纷中汲取的教训。

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