《土木工程毕业论文-工程施工测量及精度控制的探讨》.doc

工程施工测量及精度控制的探讨姓 名专 业土木工程年 级2011级指导教师工程施工测量及精度控制的探讨 中文摘要 建筑施工测量是建筑施工的首要工序，在施工过程中是工序间链接的纽带并贯穿于施工全过程，是各工序确保施工质量的重要依据，测量的质量如何将直接影响建筑物的质量。随着我国现代化城市的发展，高层建筑日益增多，对施工测量的技术和精度提出了更高的要求。因此对施工测量进行研究是很有必要的。 本文针对某高层建筑施工测量的主要内容与精度控制进行阐述，包括高程传递、轴线竖向传递、沉降观测。比对工地上施工测量与规范操作之间的差异，明确其对测量精度的影响。同时，针对测量仪器本身固有误差的来源进行分析，并提出减小这种误差的测量方法。最后，在轴线竖向传递方面，采用分段控制可以减小仪器和测量误差。在沉降观测方面，对沉降曲线图分析能检验测量数据的准确性。 关键词：施工测量，测量精度，控制网，垂直控制，沉降观测Accuracy of measurement and construction of control Abstract The measurement of a construction is a primary process of the construction. It is a link between every process and run through the entire process of the construction. It is also the important basis to ensure the construction’s quality. The quality of the measurement will directly affect the quality of the buildings. With the development of modern cities in China, the number of high buildings become larger and larger, so the technology and precise measurement of construction are highly demanded. This paper will pay attention to a high building, analyze the main elements of the measurement and the control of the precision, Including the elevation transmission, the vertical axis of transmission, the observation of the settlement. To contrast the differences between the real measurement .on the site and the standards, analyze its impact on the accuracy of the measurement. At the same time .Analyze the inherent errors of the measuring instruments, and provide measurement methods which can reduce the measurement errors and improve the accuracy of the measurement. Final, In the vertical axis of transmission, the use of sub-control in the process can reduce apparatus and measurement error. In the observation of the settlement, Analysis of the subsidence curves to test the accuracy of measurement data. Key words: construction measurement, measurement accuracy, control networks, vertical control, settlement observation目录 绪论 1 1.1工程施工测量的作用 1 1.2工程施工测量的重要性 1 1.3测量精度控制的要求与意义 2 第二章 融汇江山工程施工测量的内容与方法 3 2.1工程概况 3 2.