In Dayugou mining area, Henan Province, many departments have carried out regional geology and coalfield geology for many times, and the related achievements include Xingyang-Gongyi 1∶65438+ Million Geological Map and Mineral Geology Report of Western Henan (1950) by Feng Jinglan and Zhang Bosheng. 1∶ 200,000 geological map drawn by North China Petroleum Exploration Brigade (1951~1953); Geophysical Exploration Team and Team 127 of Central South Coalfield Geological Bureau carried out electrical exploration and drilling (1951~1953); Exploration Geological Report of Henan Xinggong Mining Area/KOOC-0/No.2 and No.3 Minefields (/KOOC-0/953 ~/KOOC-0/968) completed by Henan Coalfield Geology Bureau/KOOC-0/05 Team and Central South Coalfield Geology Bureau/KOOC-0/27 Team; Supplementary Exploration Geological Report of Dayugou Minefield in Xingyang Coalfield, Henan Province (1981~1982) completed by Team 3 of Henan Coalfield Geology Bureau; Verification Report of Coal Resources and Reserves of Dayugou Hongqi Coal Industry Co., Ltd. completed by Henan Coal Geological Survey and Research Institute (2006). The above results have a detailed and in-depth discussion on the strata, structure and coal seam distribution in this mining area, but the hydrogeological content is less. In 2006, Zhengzhou Mining Bureau organized the technical force of Henan Province to carry out land consolidation and reclamation project in the ground subsidence area of No.3 Mine, and its nature was mainly engineering construction. In addition, systematic environmental geological research and investigation have not been carried out in the study area.
Figure 2.7 Mine Environmental Geological Map