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The Risk Analysis of Shield Tunneling Caused Settlement Loss and Its Utilization in Engineering Insurance

Author: WangMi
Tutor: PanZuo；ZhouJinCao
School: South China University of Technology
Course: Architecture and Civil Engineering
Keywords: Shield Tunnel Environmental Impact Settlement Risk Xin Engineering Insurance
CLC: U455.43
Type: Master's thesis
Year: 2010
Downloads: 118
Quote: 0
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Abstract


The security of the tunnel construction period and its adjacent structures affect not only the engineering problems, but also social problems. The construction of the tunnel project faces risks and uncertainties. Adjacent to the tunnel under the building conditions than the tunnel project under the general conditions facing more complex conditions and social supervision, and risk management measures to be incorporated into the day-to-day management of the construction of such a tunnel, is powerful for the smooth implementation of the project protection, to achieve a certain degree of risk transfer, by way of insurance after nearly a decade the actual inspection proved to be an effective risk management models. In recent years, there are more research of basic theory and risk management of project risks, however, for the risk management of the tunnel but is seldom used. Is based on the quantitative methods of risk sub-less Xin research, which led to the risk of the project work has always been the lack of mathematical points Xin basis points of Xin and engineering insurance. The article, environmental risk shield tunnel construction of Xin and engineering insurance underwriting conditions evaluation using quantitative methods. This is a simplified and can adapt to the actual construction conditions of the settlement formula sedimentation sub Xin, compared with the actual monitoring data, good agreement Peck formula. Destruction of the theoretical basis of the membership function calculation based on the Peck formulas and buildings more reasonable solution Shield Tunnel beneath the buildings to the upper part of the building may result in direct property loss estimates, calculations to reflect the actual loss trends and approximate range . In order to facilitate the examination of the actual effect of this approach, the authors selected a real case of the Guangzhou Metro Shield Tunnel may be caused by specific economic loss is measured by calculating to the page, combined with the actual incidents of loss of score Xin results more anastomosis. The article based on the recommendations of the shield tunnel construction environmental risks of Xin and quantitative method based engineering insurance. Shield Tunnel quantitative research, the article beneath buildings may result in the construction process, the upper part of the building subsidence loss to select a relatively simple and practical method. On this basis, it is possible to provide data for risk management, risk decisions, the basis for calculating the appropriate insurance insurance company also provides the basis for the development of underwriting conditions.

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CLC: > Transportation > Road transport > Tunnel project > Tunnel construction > Construction methods > Shield Law ( full- face excavation )
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