Research on integrated prevention and control technology of disaster by gob-side entry retaining with flexible formwork wall

The concept and techniques of treating coal mine disasters separately under the dual pressures of coal supply guarantee and staff limitation in working face are no longer meet the requirements of coal mines development in the new era. Through industrial experimental research, this study puts forward a kind of flexible formwork concrete continuous wall that follows the stopping face to pour a full and dense roof and can be loaded immediately. The goaf is sealed, the original roadway is retained, and the retained roadway is used as an integrated prevention and control platform disaster. The study outlines the technical approaches to comprehensive treatment of major disasters such as mine water, fire, gas, roof collapse, heat damage and strong strata pressure using this platform, summarizes the application scope of the technology, and introduces the disaster integrated prevention and control effectiveness of this technology in the National Energy Group, Lu'an Chemical Industry Group, Shaanxi Coal Group, etc.