| 珠江三角洲地区高速公路软基瞬时沉降计算方法探讨 |
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| 引用本文： | 马传明,蔡鹤生.珠江三角洲地区高速公路软基瞬时沉降计算方法探讨[J].地球科学,2002,27(2):212-216. |
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| 作者姓名： | 马传明 蔡鹤生 |
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| 作者单位： | 中国地质大学工程学院，湖北武汉430074 |
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| 摘 要： | 目前高速公路软基瞬时沉降尚无成熟的计算方法，从产生剪切变形的主要因素入手，同时考虑土体结构损伤、砂井加筋作用，推导出珠江三角洲地区高速公路软基瞬时沉降的计算关系式。根据填土荷载大于或小于Rc的两类情况而得到各自的计算公式，并利用实测资料进行反馈分析得到经验系数，5个断面的计算表明，所得计算公式是可信的。
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| 关 键 词： | 损伤理论 瞬时沉降 结构性软土 土体结构 剪切变形 路基 |
| 文章编号： | 1000-2383(2002)02-0212-05 |
Calculation Method of Instant Settlement of Freeway Soft Foundation in Zhujiang Delta Area |
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| MA Chuan ming,CAI He sheng.Calculation Method of Instant Settlement of Freeway Soft Foundation in Zhujiang Delta Area[J].Earth Science-Journal of China University of Geosciences,2002,27(2):212-216. |
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| Authors: | MA Chuan ming CAI He sheng |
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| Abstract: | At present, no perfect calculation method has been found for the freeway soft foundation instant settlement quality. This paper tries to establish a calculation formula of the freeway instant settlement quality in Zhujiang delta area by starting with the main factors leading to shear deformation, and considering soil structure damage and sand well restraining displacement of soft foundation. Two calculation formulas have been obtained according to the loading larger than P c and the loading smaller than P c. Also experience coefficient was attained by the analysis of the practical data. The engineering example proves that this method is credible. |
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| Keywords: | freeway mar theory instant settlement structural soft soil |
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