Study on the Influence of Slope Static Load on Shallow Lining Support Structure

ABSTRACT On the basis of the background of the shallow‐buried main adit supported by stone lining, the mechanical model of the supporting structure is constructed and the stability of the supporting structure is analyzed by using the methods of field investigation, theoretical analysis, and numerical simulation. The results show that (1) the range from 38 to 82 m away from the entrance of the main adit belongs to the slope influence zone. (2) The bending moment and axial force of the supporting structure are asymmetrically distributed under the static load of the slope, and the maximum value of the bending moment is located on the side of the noncovered slope, while the maximum value of the axial force is located on the side of the covered slope, and the maximum displacement is biased to the side of the slope, which corresponds to the position of the cracks on the inner surface of the supporting structure measured in the field, thus verifying the correctness of the conclusions. (3) From the angle of stone bearing and dynamic load transfer, the supporting structure will be in a stable state. This study can provide a reference for the stability analysis of similar supporting structures.