【摘 要】
：
The freeway passes over the gob area of the Zaibo coalmine or its neighborhood when it is built. It is a noticeable problem that the construction of freeway and the underground coal mining interact, especially the deformation and destruction of the gob ar
【机 构】
：
Department of Geologic and Environment Engineering, Xi’an University of Science and Technology, Xi’a
论文部分内容阅读
The freeway passes over the gob area of the Zaibo coalmine or its neighborhood when it is built. It is a noticeable problem that the construction of freeway and the underground coal mining interact, especially the deformation and destruction of the gob area of the coalmine influence the long-term stability of the freeway. In the paper, based on the actual data of the exploration about the gob area of Zaibo coalmine and the built project of the freeway, the variety rule of the coal beds below the freeway was studied by using of FEM during the process of coal mining. The statuses of the stresses and strains, the varieties of the plastic area were simulated in the whole rock mass. The characters of stresses and deformation of the gob area of the coalmine were analyzed and evaluated after the freeway built. The long-term stability of the gob area was predicted. The deformation of the gob area under the freeway has not been finished, and the relative measures must be taken.
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