| Chinese pagoda is an outstanding representation of ancient high buildings, which syncretizes the elites of Chinese traditional architectural art and external culture. The existent ancient pagodas not only have the precious cultural heritage value, but also have highly sightseeing value. However, these pagodas had experienced many vicissitudes of life, suffered much artificial and natural breakages such as war, earthquake, weathering, so, majority of them are need to be repaired and strengthened imminently. Along with the progress of social civilization, the people have been paying more attention to the protection of ancient buildings, and research for the pagodas has already become an important task of historical building protection and city construction. The developing modern technology is also promoting the protective work to change over to the science stage from the experience stage.The masonry pagoda is a main type of Chinese Pagodas, which has the longesthistory, the biggest type of build, and the most in numbers. But some masonry pagodas situated in inclination because they with the big weight, the low strength, and they are sensitive to the deformation of the foundation. Therefore, the inclination control and strengthening project is an important content of protection of masonry pagoda. To guarantee the achievement of expectant effect of the project, we must analyze the causation resulting in the inclination accurately, study out the reasonable reinforcement scheme, and organize and monitor the construction process carefully. It is a significant basic research task that applying the modern analysis and test techniques to protection of ancient buildings, and proposing a practicable analysis and monitoring system for the inclination control and strengthening project of masonry pagodas.The aim of the dissertation is to study the analysis method and monitoring technology applied to inclination-control and strengthening for sloped ancient masonry pagodas. Combining with science and technology foundation of JiangSu province "Research on Inclination-control, Strengthening and Monitoring Technology Applied to HuQiu Pagodas", this dissertation select a research object, HuQiu pagoda in Suzhou city, which is one with the longest age and largest gradient in the existing Chinese pavilion style pagodas, to discuss the reason of uneven subside and deformed, study the analysis and simulation method and monitoring technology to the reinforcement project. With computer simulating the reinforcing project, establishing the three-dimensional physical model of the primitive foundation and process of reinforcement, and analyzing the influence of each technical measure to stability of the pagoda.Centering on the study of the analysis method and monitoring technology applied to inclination-control and strengthening of to the ancient pagodas, some key technologies have be discussed as follows.1. Based on the analysis to the cause of incline condition of the masonry pagodas, proposing the reasonable reinforcement scheme.2. The theory research on the reinforcing technology applied to ancient pagoda, including the classical calculate theory on the foundation subside, modern finite-element method and the monitoring technology, and the integrated application of the three methods.3. Analyzing the major reason of settlement and inclination of HuQiu pagoda, and simulating the stress and strain of foundation and the uneven subsides of the pagoda during the strengthening process with software ANSYS.4. On the base of practical reinforcing model, expanding the research on the effect of foundation piles construction and the mechanism rectifying the deviation by soil extraction to the strengthening project, obtaining some important conclusions and rules, and providing some references for the similar ancient pagodas.
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