天府矿区在矿井中所遇中、小型断层较多,煤层变化较大,给生产带来了一定的困难。为使地质工作更好地为矿井生产服务,笔者运用地质力学的观点,对矿区地质构造特征,及煤层变化规律,提出一些初步认识和看法,谬误处望批评指正。 矿区构造。天府矿区位于新华夏系第三沉降带的川东褶皱带,华蓥山弧形褶皱群中的华蓥山复背斜南段。该复背斜在三汇坝以 Tianfu mine encountered in the mine, more small faults, large coal seam changes, to the production has brought some difficulties. In order to make geology work better for mine production, the author puts forward some preliminary understanding and opinions on the geologic tectonic characteristics and the law of coal seam variation from the view of geomechanics. Mining area structure. The Tianfu Mine is located in the eastern Sichuan Fold Belt of the Third Subsidence Belt of the Xinhuaxia Formation and in the southern part of the Huaying Shan anticlock anticline in the arc-shaped fold folds of the Huaying Mountain. The complex anticlines in Sanhui dam