夹岩水利枢纽工程施工控制网等级与精度论证

根据夹岩水利枢纽及黔西北供水工程的特点,通过理论推导,应用误差传播定律,依据各种建筑物放样的允许误差对平面及高程施工控制网的精度和主要技术指标进行计算分析,对控制网等级进行论证。提出了如何选择工程施工放样首级和加密施工控制网的建网等级,并在工程实践中开始应用,对类似工程有一定的借鉴意义。

Argumentation of Precision and Level for Construction Control Network of Jiayan Water Conservancy Engineering

The technology thought and ways of level selected for designing the control network of construction have been discussed. Based on the characteristics of Jiayan Water Conservancy and Northwestern Guizhou Water Supply Engineering, on the premise of various buildings lofting permissible error on the precision, the plane and elevation of the control network for construction have been analyzed by the theoretical derivation and applying law of error propagation, and the level of control network has been demonstrated. The ways of how to choose the level of control network for head and encryption construction control network in engineering lofting have been put forward. The research has some reference for similar projects.