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中文摘要：
为了验证新景矿15#煤层远距离下保护3#煤层的可行性，通过科学合理地选择相似材料、选定测量方法、布置测点、设计及开采模型，对保护层开采进行了认真细致的相似模拟试验研究，考察了开采保护层期间被保护层的瓦斯涌出量，并对其膨胀变形量进行了测定，最终确定在保护区域内其膨胀变形为5．0～18．3mm，相对变形为4．0‰～7．84‰。该研究采用的方法和思路能为同类问题的解决提供一定的范例和参考。
英文摘要：
In order to verify feasibility of protecting 3#coal seam from below by mining 15# coal seam in far distance in Xinjing coal mine, through choosing similar material, defining measuring method, arranging measuring points, designing and mining model scientifically and rationally, similar simulation study on mining protective layer was seriously carried out. Emissing amount of gas of protected layer during mining protective layer wasinvestigatedand amount of swelling deformationof protected layer was finally determined. Result was that in protected area its swelling deformation was in range of 5.0 - 18.3mm and relative deformation was in range of 4. 0‰ -7.84‰. The method and thinking adopted in thisstudy can supply certain example and reference for solving the same kind of problems.
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