高速公路采动影响下移动变形规律分析
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摘要
以某高速公路为研究对象,采用FLAC~(3D)数值模拟方法,对煤矿采动影响下高速公路的移动变形规律进行了研究,研究结果表明:采动影响下半刚性沥青路面随地表的下沉而连续下沉;两者变化趋势一致,路面下沉滞后于相应地表下沉,当总下沉量越大时,两者的差异表现越明显,而路面的水平移动大于对应地表值,路面与地表各项移动变形近似呈线性的变化关系。
In order to study the movement and deformation law of under the influence of mining, an expressway was taken as the research object,through using the FLAC3 D numerical simulation method, the movement and deformation law of expressway under the influence of mining were studied, the research results show that: under the influence of mining, semi-rigid asphalt pavement continues to sink with the subsidence of ground, the variation trend of pavement and ground subsidence is consistent, the sinking of pavement lags behind corresponding ground, when the total subsidence is bigger, the difference between the two is more obvious, the horizontal movement of the pavement is greater than the corresponding ground value, there is a linear relationship of each movement and deformation between the pavement and the ground.
In order to study the movement and deformation law of under the influence of mining, an expressway was taken as the research object,through using the FLAC3 D numerical simulation method, the movement and deformation law of expressway under the influence of mining were studied, the research results show that: under the influence of mining, semi-rigid asphalt pavement continues to sink with the subsidence of ground, the variation trend of pavement and ground subsidence is consistent, the sinking of pavement lags behind corresponding ground, when the total subsidence is bigger, the difference between the two is more obvious, the horizontal movement of the pavement is greater than the corresponding ground value, there is a linear relationship of each movement and deformation between the pavement and the ground.
引文
[1]童立元,刘松玉,邱钰,等.高速公路下伏采空区问题国内外研究现状及进展[J].岩石力学与工程学报,2004,23(7):1198-1202.
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[3]范洪冬,邓喀中,祝传广,等.基于时序SAR技术的采空区上方高速公路变形监测及预测方法[J].煤炭学报,2012,37(11):1841-1846.
[4]彭帅英.高速公路下伏多层采空区地表沉陷数值模拟及预测研究[D].长春:吉林大学,2013.
[5]吴盛才,徐鹏,贺跃光.高速公路下伏采空区地表变形预计及稳定性评价[J].测绘科学,2012,37(2):97-99.
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[7]刁心宏,刘峰,龚葛萍,等.高速公路路基下采空区稳定性评估与治理措施[J].华东交通大学学报,2006,23(2):5-8.
[8]童立元,邱钰,刘松玉,等.高速公路与下伏煤矿采空区相互作用规律探讨[J].岩石力学与工程学报,2010,29(11):2271-2276.
[9]芮勇勤,陈佳艺,丁晓利.基于InSAR与GPS技术的公路采空区变形监测[J].东北大学学报(自然科学版),2010,31(12):1773-1776.
[10]王乐杰,李景岱.谈路下采煤对高速公路的损害影响[J].金属矿山,2008(8):123-125.
[11]邵强,冯德学.采动影响下公路损害特征及防护[J].煤炭工程,2004(2):40-42.
[12]李鹏,何程.高速公路下伏浅层采空区地表变形的数值分析[J].路基工程,2013(1):144-148.
[2]芮勇勤,陈佳艺,丁晓利.基于InSAR与GPS技术的公路采空区变形监测[J].东北大学学报(自然科学版),2010,31(12):1773-1776.
[3]范洪冬,邓喀中,祝传广,等.基于时序SAR技术的采空区上方高速公路变形监测及预测方法[J].煤炭学报,2012,37(11):1841-1846.
[4]彭帅英.高速公路下伏多层采空区地表沉陷数值模拟及预测研究[D].长春:吉林大学,2013.
[5]吴盛才,徐鹏,贺跃光.高速公路下伏采空区地表变形预计及稳定性评价[J].测绘科学,2012,37(2):97-99.
[6]童立元,刘松玉,方磊.高速公路下伏采空区治理质量监控技术试验研究[J].公路交通科技,2002,19(6):52-56.
[7]刁心宏,刘峰,龚葛萍,等.高速公路路基下采空区稳定性评估与治理措施[J].华东交通大学学报,2006,23(2):5-8.
[8]童立元,邱钰,刘松玉,等.高速公路与下伏煤矿采空区相互作用规律探讨[J].岩石力学与工程学报,2010,29(11):2271-2276.
[9]芮勇勤,陈佳艺,丁晓利.基于InSAR与GPS技术的公路采空区变形监测[J].东北大学学报(自然科学版),2010,31(12):1773-1776.
[10]王乐杰,李景岱.谈路下采煤对高速公路的损害影响[J].金属矿山,2008(8):123-125.
[11]邵强,冯德学.采动影响下公路损害特征及防护[J].煤炭工程,2004(2):40-42.
[12]李鹏,何程.高速公路下伏浅层采空区地表变形的数值分析[J].路基工程,2013(1):144-148.