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由四川省交通厅高速公路管理局、我校(土木工程学院)组成的课题组以川藏公路二郎山隧道为依托工程,研究了在高地应力和极高地应力条件下。隧道发生大变形破坏机理和工程治理方法。该成果已通过了省科委组织的技术鉴定。其主要成果如下:1.在国内外首次提出了因剪切变形发生错动、断裂分离为破坏源的隧道围岩大变形的性质和定义;
The task force, composed of Sichuan Provincial Department of Transportation Highway Administration and our school (Civil Engineering Institute), relied on the Erlangshan Tunnel of Sichuan-Tibet Highway, and studied under conditions of high ground stress and extremely high stress. Large deformation and failure mechanism of tunnel and engineering management methods. The results have passed the technical appraisal organized by the Provincial Science and Technology Commission. The main achievements are as follows: 1. At home and abroad, for the first time, the nature and definition of large deformation of surrounding rock mass of tunnel have been proposed due to the dislocation and fracture of shear deformation.