[1]Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China;
[2]School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China;
[3]Post-Doctoral Scientific Research Station, Yankuang Group Company Limited, Zoucheng 273500, China;
[4]Liangjia Coal Mine, Longkou Coal-Electric Company Limited, Longkou 265700, China;