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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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孔压静力触探(CPTU)探求高速公路软基固结系数研究
, PP. 30-34
Keywords: 道路工程,软基,孔压静力触探,固结系数,孔压消散试验
Abstract:
基于孔压静力触探(CPTU)的原理,简要介绍了利用CPTU试验求解地基土固结系数的理论方法,并以Tor-stensson理论模型为例,详细叙述了利用CPTU试验资料探求地基土固结系数的方法和步骤。结合连盐高速公路灌云三标的CPTU试验进行了实例计算,结果表明,现场所得的固结系数较室内试验的固结系数大1~2个数量级,与其他研究者的结果一致;在淤泥土层内,现场固结系数较室内试验所得的固结系数变化小,与现场资料反演值很接近;若采用此方法为实际工程提供设计固结系数时,进行修正后效果会更好。
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