高速公路采动影响下移动变形规律分析

Study on Movement and Deformation Law of Expressway Under Mining Influence

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.