| 碎石填筑场地强夯加固机制及施工工艺 |
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| 引用本文： | 高政国,杜雨龙,黄晓波,来阳,黄新.碎石填筑场地强夯加固机制及施工工艺[J].岩石力学与工程学报,2013,32(2):377-384. |
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| 作者姓名： | 高政国 杜雨龙 黄晓波 来阳 黄新 |
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| 作者单位： | (1. 北京航空航天大学 交通科学与工程学院，北京 100191；2. 空军工程设计研究局，北京 100077) |
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| 摘 要： | This paper carried out the in-situ tests and laboratory tests to study the reinforcement mechanism and construction technology of a high fill airport under dynamic consolidation. The dynamic response of broken stone fills，of which gradation can not meet the specifications for earthwork construction，has been studied by measuring the acceleration. Then the relationship between compact energy，compact momentum(the height of hammer raised)，the size of hammer and settlement，effective reinforced range were researched by numerical simulation. The results show that the acceleration of the range of sideways and downward of the broken stone fills is weaker than around. The plastic dissipation energy and volume of plastic zone of fills for every ramming are stable；while the settlement for each ramming is decreased because the plastic zone is increasing. The larger compact energy is，the larger settlement is；but the compact energy can not affect the ramming time for stable settlement. The settlement and plastic zone can be affected by the height of hammer raised and the size of hammer when the compact energy is constant. Construction technology indices were proposed by the research results.
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| 关 键 词： | soil mechanicsbroken stone fillslaboratory testin-situ testdynamic consolidationnumerical simulationdynamic response |
| 收稿时间： | 2012-07-19; |
REINFORCEMENT MECHANISM AND CONSTRUCTION TECHNOLOGY OF BROKEN STONE FILLS BY DYNAMIC CONSOLIDATION |
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| GAO Zhengguo
,
DU Yulong
,
HUANG Xiaobo
,
LAI Yang
,
HUANG Xin.REINFORCEMENT MECHANISM AND CONSTRUCTION TECHNOLOGY OF BROKEN STONE FILLS BY DYNAMIC CONSOLIDATION[J].Chinese Journal of Rock Mechanics and Engineering,2013,32(2):377-384. |
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| Authors: | GAO Zhengguo DU Yulong HUANG Xiaobo LAI Yang HUANG Xin |
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| Affiliation: | (1. School of Transportation Science and Engineering，Beihang University，Beijing 100191，China；2. Air Force Engineering Design and Research Institute，Beijing 100077，China) |
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| Abstract: | This paper carried out the in-situ tests and laboratory tests to study the reinforcement mechanism and construction technology of a high fill airport under dynamic consolidation. The dynamic response of broken stone fills，of which gradation can not meet the specifications for earthwork construction，has been studied by measuring the acceleration. Then the relationship between compact energy，compact momentum(the height of hammer raised)，the size of hammer and settlement，effective reinforced range were researched by numerical simulation. The results show that the acceleration of the range of sideways and downward of the broken stone fills is weaker than around. The plastic dissipation energy and volume of plastic zone of fills for every ramming are stable；while the settlement for each ramming is decreased because the plastic zone is increasing. The larger compact energy is，the larger settlement is；but the compact energy can not affect the ramming time for stable settlement. The settlement and plastic zone can be affected by the height of hammer raised and the size of hammer when the compact energy is constant. Construction technology indices were proposed by the research results. |
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| Keywords: | soil mechanics broken stone fills laboratory test in-situ test dynamic consolidation numerical simulation dynamic response |
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