| Autor: |
Cong-Oanh Nguyen, Van-Tram Dao Thi, Duc-Tung Bui |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Civil Engineering ISBN: 9789811521836 |
| DOI: |
10.1007/978-981-15-2184-3_16 |
| Popis: |
Recent development of infrastructures in urban area, especially Ho Chi Minh City, has generated massive construction in waste water treatment and connecting pipelines. Construction of these treatment facilities in soft ground condition, therefore, is such a challenge for practical Engineer who carries design task. The paper presents a case study of difficulty in driving Pre-stressed Concrete (PC) piles with the assistance of pre-boring method by continuous flight auger. A series of static load test with a range from 200% to 300% of working load were performed on D450mm PC piles. This was to investigate the bearing capacity of the piles which were not possibly driven to the initial design level due to the variation of the top of dense sandy soil layer. Adoption of Chin’s method was done accordingly to determine the ultimate bearing capacity of those tested piles. A correlation between the pressing force and ultimate/allowable bearing capacity is eventually established in order to confirm the bearing of the pile group under the waste water treatment reservoir for permanent operation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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