软岩隧道变形失稳机理及处置对策研究

On the instability mechanism and disposal countermeasures of the deformation of soft rock tunnel

通过对隧道变形严重的地段展开现场调查,确定了影响隧道变形的主要因素,在隧道变形严重的地段取样,进行室内X射线、偏光镜、膨胀率、膨胀力等相关方面的试验研究工作,揭示了隧道变形的机理,进而提出了支护方案。

Through site investigation on severe deformation of the tunnel sections,this thesis identifies the main factors affecting the tunnel deformation.It also chooses some samples in severe deformation of the tunnel sections,and does related aspects of experimental research work with indoor X-ray,polarizing microscope,swelling,swelling power.Finally,it reveals the deformation mechanism of the tunnel,and then presents a supporting program.