In recent years,there have been an increasing number of high-rise heterogeneous buildings in coal mining subsidence areas.Traditional point measurement methods can no longer meet the requirements for the deformation monitoring accuracy,mainly due to the following two reasons:①It is not easy to select feature points;② It is difficult to accurately measure the feature points.Regarding these two problems,based on point cloud data and by using the target central axis fitting method,this paper proposes a tilt measurement method for high-rise heterogeneous buildings based on surface mapping.Verified by practical examples,the tilt obtained by this algorithm for the structures is 22.97 mm/m,while the tilt obtained by the traditional measurement method is 21.53 mm/m,with a relative error of 6.9％,which meets the accuracy requirements for tilt measurement.The research results can provide technical support for the rapid and efficient tilt monitoring of similar high-rise structures in mining areas.
维普
万方数据
