原文传递
Design and Construction of Continuous Flight Auger Piles. Geotechnical Engineering Circular (GEC) No. 8.
| 题名： | Design and Construction of Continuous Flight Auger Piles. Geotechnical Engineering Circular (GEC) No. 8. |
| 关键词： | lateral pressure, clay soils, axial loads, soil struction interactions, grouting, specifications, design standards, screw piles, deep foundation testing, automated monitoring, performance specification |
| 摘要： | This manual presents the state-of-the-practice for design and construction of continuous flight auger (CFA) piles, including those piles commonly referred to as augered cast-in-place (ACIP) piles, drilled displacement piles, and screw piles. CFA pile types, materials, and construction equipment and procedures are discussed. A performance-based approach is presented to allow contractors greater freedom to compete in providing the most cost-effective and reliable foundation system, and a rigorous construction monitoring and testing program to verify the performance. Quality control (QC)/quality assurance (QA) procedures are discussed, and general requirements for a performance specification are given. Methods to estimate the static axial capacity of single piles are recommended based on a thorough evaluation and comparison of various methods used in the United States and Europe. Group effects for axial capacity and settlement, and lateral load capacities for single piles and pile groups are discussed. A generalized step-by-step method for selecting and designing CFA piles is presented, along with example calculations. An Allowable Stress Design (ASD) procedure is used. / Supplementary Notes: Sponsored by Federal Highway Administration, Washington, DC. Office of Bridge Technology. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0806；293p |
| 报告类型： | 科技报告 |
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