Study on deformation of mining coal roadway affected by strip mining based on field measurement

To investigate the deformation characteristics of mining coal roadway affected by strip mining, through the field measurement of one mining coal roadway by strip mining of Xuzhou coal mine in China, based on the key stratum theory and strata movement theory, its deformation is analyzed and studied. From the field measurement, some special deformation characteristics of mining coal roadway affected by strip mining have been found. For the mining coal roadway by strip mining, there are two peaks of displacement, and their lag distance is long. Therefore, the support of the mining coal roadway by strip mining should be reinforced before the second pressure arrives. Those can provide valuable reference for the support of the mining coal roadways by strip mining under the similar conditions.