| URN | etd-0729125-000214 | Statistics | This thesis had been viewed 19 times. Download 0 times. |
| Author | Hao-Xsiang Chang | ||
| Author's Email Address | No Public. | ||
| Department | Institute of construction technology | ||
| Year | 2024 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 120 |
| Title | Practical Research on the Expansion of Old Fundations in Urban Redevelopment Projects | ||
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| Abstract | This study investigates the techniques and applications of foundation expansion in existing buildings within the context of urban renewal and redevelopment projects. The practical planning includes on-site surveys, protection of adjacent buildings and public infrastructure, and the setup of a comprehensive safety monitoring system. Special emphasis is placed on the design principles of column enlargement, conversion slab structures at diaphragm walls, and load-transferring foundation slabs. A complete construction plan and structural response strategy are developed accordingly. Chapter Four focuses on the actual construction process, detailing three main aspects: column enlargement, diaphragm wall thickening and reinforcement, and the transition in foundation slab thickness. Each construction step and method is reviewed thoroughly. Through the execution of on-site operations and evaluation of engineering records, this chapter validates the rationality of the initial design assumptions and proposes suggestions for method optimization and structural integration. Based on the findings, the following recommendations are presented: 1. On-site measurement and layout serve as the cornerstone for construction accuracy, directly determining the positioning, elevation, and geometric relationships of structural components. Preservation methods for layout markings must also be considered. 2. Depending on structural requirements, core washing techniques may be used as an alternative to drilling, which can improve construction efficiency and reduce costs. 3. A well-designed basement ventilation system not only helps eliminate hazardous gases and regulate temperature and humidity, but also ensures the health and safety of construction personnel. Its design must comply with regulations, optimize airflow efficiency, and minimize operational noise, making it an essential component in deep underground construction projects. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2025-07-09 | Date of Submission | 2025-07-31 |