重载铁路压覆煤炭资源综合利用技术

随着铁路的不断发展,铁路压煤问题成为“三下”采煤新的问题,开采这部分矿产资源成为生产中亟待解决的问题。以冀中能源集团邢台矿区铁路下开采为例,采用能够较好处理岩体工程中各种复杂非线性问题的ABAQUS软件,模拟了地表沉降的复杂非线性过程,得出了地表位移与移动速度和开采距离之间的关系,较准确地预测了地表沉降规律。以此为基础,分析了铁路路基沉陷与列车荷载之间的耦合关系,提出了列车通过采空区地段的安全措施,保证了铁路工程在开采条件下的稳定,达到了充分利用地下矿产资源、解决制约煤炭产业发展的后备资源不足问题的目的。

The comprehensive utilization technology for coal resources under Heavy haul railway

The exploitation of coal resources under the Railway in three-underground mining is becoming the new problem with the continuous development of railway. Mining the production of this part of the exploitation of mineral resources becomes an urgent problem. With the example of mining under railways in Jizhong energy group, the complex nonlinear process of surface subsidence is simulated, the relationship between surface displacement and moving speed and mining distance is gained, and the surface subsidence law is predicted, the ABAQUS software dealed with nonlinear problems of rock mass is adopted. The coupling relationship between the train load and the subgrade settlement. The safety measures are put forward when trains pass through the goaf the stability of railway engineering in mining conditions is ensured. the full utilization of mineral resources is achieved, and the problem of resources shortage restricting the development of the coal industry is solved.