开平煤田构造发育规律对煤层赋存的影响

依据开平煤田地质勘查和矿井开采资料，并结合前人的研究成果，在系统分析地质构造展布规律和组合特征的基础上，选取NW向剖面作为平衡剖面，采用平衡剖面方法，对煤田构造变形及其对煤层赋存影响进行了研究。研究表明：开平煤田标志层缩短率为e=～23．5％，地层变形程度总体自NW—SE减弱；唐山推覆构造巾间后屯断层与FV断层所夹岩体变形更为强烈，缩短率达到42．9％；开平向斜NW翼地层陡倾甚至倒转，煤层韧性流变和脆性流变广泛发育，唐山矿FⅢ断层上部煤层形成不协调褶皱，局部煤层形成煤仓。

Tectonic Development Pattern and Its Impact on Coal Seam Hosting in Kaiping Coalfield

Based on geological exploration and mining data in the Kaiping coalfield, combined with studied results of the predecessors, systematically analyzed structural distribution and combination features in the area. To take NW sections as balanced cross sections, studied coalfield tectonic deformation and its impact on coal seam hosting. The study demonstrated that： the key horizon shortening ratio in Kaiping coalfield is e = -23.5%, strata deformation extent totally weakening from northwest to southeast. In the Tangshan nappe structure, the deformation of rock body between the Houtun fault and fault FV is even stronger; the shortening ratio can be 42.9% as high. The NW limb strata of the Kaiping syncline are steeply dipping even overturned. Ductile and brittle rheological deformations are vastly developed in coal seams, disharmonic folds formed in coal seams above fault Fill in the Tangshan coalmine, and coal pockets formed locally.