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Decision Support System of Underground Construction Based on Adjacent Buildings Safety

Author: ZhangYingXue
Tutor: YuGuangMing
School: Qingdao Technological University
Course: Geotechnical Engineering
Keywords: Tunnel excavation Ground movement and deformation Building damage Spatial Decision Support System Protection decision-making
CLC: TP311.52
Type: Master's thesis
Year: 2010
Downloads: 11
Quote: 0
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Abstract


City Tunnel excavation Inevitably be surrounding soil disturbance, and thus have an impact on neighboring buildings, severe to endanger the safety of the building. With the improvement of the level of economic development and urbanization, the increasingly dense surface buildings, tunneling between the surface buildings have become increasingly prominent. Therefore, the study of the influence of surface movement and deformation caused by urban tunneling on adjacent buildings, the extent of the damage of the evaluation of the building, appropriate defensive measures for damage to buildings, for ensuring the safety of buildings and normal use, and tunnel project smooth excavation has very important significance. To solve this problem, this paper Qingdao City regional geological environment based Jiaozhou Bay tunnel the Qingdao-side wiring near the building as the prototype established neighboring buildings secure underground engineering construction-based decision support system. The research topics include the following aspects: (1) From the theoretical analysis of the surrounding rock stress and displacement caused by underground excavation, due to the stress and displacement caused by surface subsidence and settlement buildings, and classic surrounding rock stress the displacement solution methods and peck formula do. Surrounding rock stress and displacement caused by surface subsidence, an example of a tunnel excavation numerical simulation using ANSYS. (2) a detailed introduction to the basic definition and basic characteristics of spatial decision support system, and given the basic structural framework of spatial decision support system. Analysis of spatial decision support systems of two important building blocks - the database management subsystem, model base management subsystem composed, and the establishment of procedures and functions, and detailed description of the Analytic Hierarchy Process the method database management subsystem. (3) the overall plan to build a decision support system platform, ArcGIS-based platform, combined with the Access database, and take full advantage of the powerful programming capabilities of the VB language, the secondary development of the system, the preparation of the two modules of the analysis, evaluation and protection decisions. (4) combined terminal of Qingdao Jiaozhou Bay tunnel project, the background to Qingdao's unique hard rock and mixed with broken and geological conditions of the fault zone, established a \framework based on enriched the actual engineering information in the database, and elaborate on the implementation of key technologies, and finally to a specific building, for example, analysis of the effect of the realization of the decision support system, and further validate the system viable sex.

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