为了对桐梓境内煤炭资源勘探开发利用、水害防治提供宏观指导，根据桐梓地区煤矿分布区的主要构造形态及煤层赋存规律，划分出7个含煤构造单元，归纳总结了各单元的煤层赋存条件，指出境内煤系地层的厚度、可采煤层的数量、煤层总厚度均大致由南西向北东呈递减趋势。根据各构造单元煤层的赋存状态，分别指出了顶板长兴灰岩水、底板茅口灰岩水、老空水等主要充水水源对各单元煤矿开采的影响，进而提出了境内煤矿开采的主要防治水措施。

 In order to provide macro guidance for the exploration and development of coal resources and water disaster prevention and control in Tongzi area, seven coal-bearing tectonic units were divided according to the main structural forms and coal seam occurrence rules of coal mine distribution areas in Tongzi area. And the coal seam occurrence conditions of each unit were summarized. It was pointed out that the thickness of coal measures strata, the number of minable coal seams and the total thickness of coal seams in Tongzi area showed a decreasing trend from southwest to northeast. According to the occurrence state of coal seams in each structural unit, the influence of main water filling sources such as roof Changxing limestone water, floor Maokou limestone water and goaf water on coal mining in each unit was pointed out respectively, and then the main water prevention and control measures for coal mining in China were put forward.