Application of Space Information Technology on Back-Analysis for Geological Parameters of Engineering Environment

作者：Wang Iau Teh^*; Lee Chin Yu

来源：Disaster Advances, 2011, 4(1): 34-40.

• Geological environment
• Slope stability analysis
• Limit equilibrium method
• Geographic information systems
• Remote sensing

Geological mechanical parameters are key factors in engineering safety management and disaster prevention in the planning and design phase. This paper develops a back-analysis technique using the. infinite slopes stability stratum parameter assessment technique under the GIS and RS platform. The landslide events were calculated based on the infinite slope stability theory consisting of factors including the slope, unit weight, cohesion and angle of friction of the stratum for each regional unit. Using methods developed in this study, the generated scatter charts showed the stratum. mechanical parameters for civil works compared to the site located in the southeast area of Hualien, Taiwan. According to the case study and parameter analyses results, the parameter value accuracy approaches to 80.3%. The study also demonstrated that the cohesion and angle of friction of stratum materials have important roles in controlling the safety factor. The results indicate that the back-analysis GIS and RS method provides practical engineering information for the design of potential geologic hazards evaluation. The proposed technique provides a rapid estimation for the safety factors which is quite useful for engineering requirements.

• 出版日期2011-1
• 单位防灾科技学院