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万家沟水库主体工程为自治区第一座变半径变厚度混凝土双曲拱坝，采用了当今大坝设计上诸多新技术，因而施工测量要求高，难度大。其中施工控制网的建立和施工放线的实施在很大程度上制约着工程的进度和质量。本文就上述两方面进行了严谨的论证和探索，对影响施工精度的因素进行了多方分析，建立了一整套规范化的施工测量方法，确保了施工进度和质量。
The main project of Wanjiagou Reservoir is the first concrete double curved arch dam with variable radius and thickness in the autonomous region. It adopts many new technologies in the design of dams. Therefore, the construction survey requires high and difficult. The establishment of construction control network and the implementation of construction release line to a large extent restrict the progress and quality of the project. This article carries on the rigorous argumentation and the exploration to these two respects, has carried on the multi-aspect analysis to the factors affecting the construction precision, has established a set of standardized construction survey method, has guaranteed the construction schedule and the quality.