| 桩端加环对PHC桩影响的试验研究 |
| |
| 引用本文： | 陈亮. 桩端加环对PHC桩影响的试验研究[J]. 岩土工程技术, 2011, 25(1): 5-9,37. DOI: 10.3969/j.issn.1007-2993.2011.01.002 |
| |
| 作者姓名： | 陈亮 |
| |
| 作者单位： | 华东电力设计院,上海,200331 |
| |
| 摘 要： | PHC桩在动力打桩过程中,往往会因为锤击数或锤击能量过高而发生桩头或桩身损坏,引起的挤土效应和振动效应也会对周围环境造成不良影响.PHC桩桩端加环可减少沉桩过程中桩侧土体摩阻力的影响,结合某电厂工程综合试桩工作,通过对沉桩总锤击数、最终贯入度、土塞高度、打桩振动测试及高应变检测结果的分析,指出桩端加环对保证PHC桩的完...
|
| 关 键 词： | PHC桩 桩端加环 沉桩 挤土效应 振动效应 单桩承载力 |
Experimental Study on the Effect of Adding a Hoop Beneath the PHC Pile Endpoint |
| |
| Chen Liang. Experimental Study on the Effect of Adding a Hoop Beneath the PHC Pile Endpoint[J]. Geotechnical Engineering Technique, 2011, 25(1): 5-9,37. DOI: 10.3969/j.issn.1007-2993.2011.01.002 |
| |
| Authors: | Chen Liang |
| |
| Affiliation: | Chen Liang (East China Electric Power Design Institute, Shanghai 200331, China) |
| |
| Abstract: | In the course of power driving, damage to the PHC pile head and body often occur because of the exorbitant blow count or blow energy, the compacting effect and vibration effect also have an evil influence to the surroundings. By adding a hoop beneath the PHC pile endpoint, the influence of frictional force of pile side can be reduced. Based on the comprehensive test pile in a power plant project, through the research to the total blow count, final injection depth, soil plugging height, vibration test and high-strain test, we show that adding a hoop beneath the PHC pile endpoint has better effect to keep the pile integrity and reduce the vibration effect, the final ultimate bearing capacity of single pile is not be affected, the effect to corn pacting effect is also weak. This research results have references to pile driving in the construction of the power plant and similar porjects. |
| |
| Keywords: | PHC pile add a hoop beneath pile endpoint pile sinking compacting effect vibration effect bearing capacity of single pile |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
