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NEW TECHNIQUES FOR RELIABLE PILE INSTALLATION AND PILE BEHAVIOR DESIGN AND ANALYSIS.
| 题名： | NEW TECHNIQUES FOR RELIABLE PILE INSTALLATION AND PILE BEHAVIOR DESIGN AND ANALYSIS. |
| 作者： | England-M |
| 关键词： | PILES-; CONSTRUCTION-; MONITORING-; ON-BOARD-RIG-COMPUTERS; QUALITY-ASSURANCE; AUGERED-PILES; PILE-BEHAVIOR; MATHEMATICAL-MODELS; ACCURACY-; STATIC-LOAD-TESTS; DESIGN- |
| 摘要： | Recent advances in rig-mounted computer-controlled monitoring and recording of pile-installation processes have allowed reliable and high-quality control to be developed. An automatic method for assessing the quality of continuous-flight-auger (CFA) pile-installation data, recorded during construction, is now well proven and most successful as both a management tool and as part of internal quality control of Cementation Piling & Foundations Limited in the United Kingdom. The data contain all the pertinent control parameters that when analyzed can identify important imperfections in the pile construction. The impact of these anomalies on the foundation behavior may then be assessed and any additional pile testing or corrective action prescribed if appropriate. Computers have also found their way into the practice of static load-testing for which they may be employed to monitor the pile-head displacement and the load applied by using electronic sensors. In addition, they can be made to control directly the load applied with regularity and accuracy that are unsurpassed. The quality of data returned from such test equipment has promoted the development of pile-behavioral models that have demonstrated remarkable accuracy in characterizing the measured pile behavior. The advances in this field are significant to soil mechanics generally, not just to pile behavior. The technique for modeling pile behavior under load has been developed into an important foundation-design tool that also allows the introduction of a sensible partial-factoring system that can be applied according to specific design conditions. |
| 总页数： | Transportation Research Record. 1994. (1447) pp39-48 (8 Fig., 7 Ref.) |
| 报告类型： | 科技报告 |
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