WITHDRAWN: Study on the Floor Heave Mechanism and Control Technology of a Gob-side Roadway Under Advanced Mining Influence

Deep beneath the earth, where coal seams lie like thick, dark blankets, miners carve out long tunnels to reach the fuel. These tunnels, known as roadways, are the arteries of a mine, allowing people and machinery to move safely. But the ground above these tunnels is not static; it is a heavy, shifting mass of rock that constantly presses down. When a section of coal is removed, the weight of the rock above it must find a new place to rest. This process causes the floor of the tunnel to buckle and rise, a phenomenon engineers call floor heave. It is a stubborn problem that can crush equipment, block passage, and make mining dangerous. Understanding why the ground pushes up and how to stop it is a matter of safety and efficiency for the industry.

Researchers from Inner Mongolia University of Science and Technology and the Mataihao Coal Mine Branch set out to investigate this specific issue in a challenging setting: a roadway built right next to a mined-out area, known as a gob. In this configuration, the tunnel sits on the edge of a void where coal has already been taken, meaning the rock above is already settling and shifting. The team focused on how the advanced mining influence—the pressure and movement caused by mining operations nearby—affects the stability of the tunnel floor. They aimed to map out the exact mechanism of this rising floor and to test technologies that could control it, hoping to find a way to keep the tunnel flat and safe for workers.

However, the story of this research does not end with a solution. The full text of the study, originally posted as a preprint, has been withdrawn by the authors. On October 7, 2026, the researchers issued a statement indicating that they no longer stand by the findings or conclusions presented in the work. Because of this, the authors have asked that the paper not be cited as a reference. While the initial goal was to clarify the forces at play in the mine floor and propose a method to hold it steady, the scientific community is now left with the understanding that these specific results are no longer considered valid by the team that produced them. The work remains a record of an inquiry that was ultimately retracted, reminding us that in the complex, high-stakes environment of underground mining, even the most carefully constructed theories must be held up to rigorous, ongoing scrutiny.