山区机场高填方边坡施工期沉降的灰色模型预测
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摘要
为研究西部山区某高填方边坡沉降的特点,通过全站仪在等时距情况下测得该填方边坡在55天之内的沉降值,总结出沉降随时间的变化规律,并引用灰色GM(1,1)和Verhulst模型方法建立起高填方边坡的沉降模型。通过实测结果与模型计算对比,证明这两种模型在预测高填方边坡沉降的可行性。这不仅可以减少沉降长期观测的浪费,而且可以较早的预测高填方边坡的沉降量。
The settlement model of the high embankment slope was set up after measuring the settlement value of the embankment slope within 55 days by using the total station on the premise of even time interval,concluding the change rule of the settlement along with time and using the grey GM(1,1)and Verhulst model method in order to research the settlement characteristics of certain high embankment slope in western mountainous area.The two models are feasible in forecasting settlement of the high embankment slope by comparing the result measured and the result calculated according to the model.Therefore,the waste during observation for a long time can be reduced,and the settling volume of the high embankment slope can be forecasted early.
The settlement model of the high embankment slope was set up after measuring the settlement value of the embankment slope within 55 days by using the total station on the premise of even time interval,concluding the change rule of the settlement along with time and using the grey GM(1,1)and Verhulst model method in order to research the settlement characteristics of certain high embankment slope in western mountainous area.The two models are feasible in forecasting settlement of the high embankment slope by comparing the result measured and the result calculated according to the model.Therefore,the waste during observation for a long time can be reduced,and the settling volume of the high embankment slope can be forecasted early.
引文
[1]Akira A,Observational Procedure of Settlement Prediction[J].Soil and Foundation,1978,18(4):87-101.
[2]吕秀杰.软土地基工后沉降预测模型的研究[J].岩土力学,2009,31(7):2 091-2 095,2 113.
[3]王清印,王峰松,左其亭,等.灰色数学基础[M].武汉:华中理工大学出版社,1996.
[4]左其亭,马军霞,张能奎.建筑物沉降量预测和最终沉降量早期确定的灰色Verhulst模型[J].岩土工程技术,1998,22(1):59-62.
[5]杜彦良,姬来,刘新福.高速铁路路基施工期沉降量的灰色预测模型及应用[J].铁道科学与工程学报,2009,31(1):36-40.
[6]邓聚龙.灰理论基础[M].武汉:华中科技大学出版社,2002.
[7]王琛艳,郑治.人工神经网络在预测高速公路路基沉降中的应用[J].公路交通技术,2004,20(3):11-14,22.
[8]雷学文,白世伟,孟庆山.灰色预测在预测软土地基沉降分析中的应用[J].岩土力学,2000,22(2):145-147.
[9]郭艳杰,李平,崔畅.基于神经网络误差修正的灰色广义预测控制[J].甘肃科学学报,2006,18(3):79-82.
[2]吕秀杰.软土地基工后沉降预测模型的研究[J].岩土力学,2009,31(7):2 091-2 095,2 113.
[3]王清印,王峰松,左其亭,等.灰色数学基础[M].武汉:华中理工大学出版社,1996.
[4]左其亭,马军霞,张能奎.建筑物沉降量预测和最终沉降量早期确定的灰色Verhulst模型[J].岩土工程技术,1998,22(1):59-62.
[5]杜彦良,姬来,刘新福.高速铁路路基施工期沉降量的灰色预测模型及应用[J].铁道科学与工程学报,2009,31(1):36-40.
[6]邓聚龙.灰理论基础[M].武汉:华中科技大学出版社,2002.
[7]王琛艳,郑治.人工神经网络在预测高速公路路基沉降中的应用[J].公路交通技术,2004,20(3):11-14,22.
[8]雷学文,白世伟,孟庆山.灰色预测在预测软土地基沉降分析中的应用[J].岩土力学,2000,22(2):145-147.
[9]郭艳杰,李平,崔畅.基于神经网络误差修正的灰色广义预测控制[J].甘肃科学学报,2006,18(3):79-82.