Risk Assessment of Cement-soil Pile Composite Foundation Using Rough Set
Rough set theory was used to analyze the stability level and risk grade of 30 site tests of cement-soil pile in Chaozhou Water Supply Control Project. And the confidence level and risk of cement-soil pile composite foundation was evaluated to determine th
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Risk Assessment of Cement-Soil Pile Composite Foundation Using Rough Set Hongqi Wang, Yiwen Zhu, Junsheng Chen and Shanshan He Abstract Rough set theory was used to analyze the stability level and risk grade of 30 site tests of cement-soil pile in Chaozhou Water Supply Control Project. And the confidence level and risk of cement-soil pile composite foundation was evaluated to determine the stability of whole Chaozhou Water Supply Control Project. With the refined deduce of rough set analysis theory, the results according to five steps are shown in this paper. The results indicate that the contrast test between rough set analysis results and the site test results are consistent. The contrast results prove that the risk assessment method of rough set theory is effective for analysis cement-soil pile composite foundation. Keywords Rough set theory • Cement-soil pile • Risk assessment • Reliability analysis
53.1 Introduction At present, geotechnical engineering risk assessment theory in our country is still in the stage of development. Mature risk assessment system has not been formed. Only in nuclear power station, tunnel, oil drilling platform, large group of underground cavern, metro tunnel, and other large civil engineering construction, risk assessment is widely used, while risk assessment of cement-soil pile composite foundation is almost a blank. There are certain aspects of the research results on reliability analysis of cement-soil pile composite foundation. A lot of scholars did some relation calculation of the reliability analysis and engineering test, and got some regularity
H. Wang · Y. Zhu · S. He School of Civil Engineering and Architecture, Wuhan University, Wuhan, China J. Chen (*) School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China e-mail: [email protected]
Z. Zhong (ed.), Proceedings of the International Conference on Information Engineering and Applications (IEA) 2012, Lecture Notes in Electrical Engineering 220, DOI: 10.1007/978-1-4471-4844-9_53, © Springer-Verlag London 2013
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and beneficial conclusion. Since the 1950s, geotechnical engineering risk analysis research also has made some achievements. But the achievements are mainly in the establishment of the concept and qualitative research, and quantitative research often troubled in the calculation of reliability. Present findings are not much on how to further the combination of technology and economic indicators, and are lack of qualitative and quantitative adaptable risk analysis and evaluation methods. No special risk assessment method is present for cement-soil pile composite foundation. Only the reliability of cement-soil pile composite foundation is being researched. So, it is still needed to build a complete risk analysis system and model.
53.2 Guangdong Chaozhou Water Supply Control Project Survey General Situation Guangdong Chaozhou Water Supply Control Project is located in Chaozhou, Guangdong Province of China, which is close to Chaozhou cit
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