Research on Application of the Bolt-Truss Coupling Support Technology in Roadway With Water-Rich and Soft Rock

• DOI: 10.3389/feart.2022.842672
• Publication Date: 2022-07-14T11:00:36Z
• Authors: Jianguo Zhang; Yingwei Wang; Xiaohan Qi; Tongguang Zhu
• Keywords: Rock bolt

In the process of underground energy mining, stability roadway support is an important guarantee. order to study application anchor cable-truss technology in water-rich soft rock roadways, mechanical analysis structure carried out, and surrounding deformation different supporting methods numerically simulated under consideration fluid–solid coupled interaction. We observed that cable (rod)-double arch truss coupling can control expansion plastic zone well. The maximum vault subsidence 0.017 m, horizontal convergence 0.054 floor heave 0.02 which are 3.8, 16.3, 4% unsupported conditions, respectively; effectively controlled. research results have certain guiding significance for design broken roadway.