研究生学术英语读写译期末论文试卷举例
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西南交通大学研究生2015-2016学年 第(1)学期期末考试试卷 课程名称 研究生学术英语读写译 课程代码 51321001 考试形式 课程论文
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Economic Co-operation and Development (OECD) at a tunnel conference in 1970, at which tunnel was defined as ‘A underground cavity, whose cross-sectional area is larger than 2, that is
(1993), the initial stress can be calculated by:
where is the gravity stress; is the tectonic stress (Guo, Ma, & Xue, 1983).
The tectonic stress is so complicated that…This paper ignores tectonic stress, in other
In Figure 1, 、are both the gravity stress in the center of tunnel. They are calculated by: where is the depth of the center of tunnel…the solution of stress and relative tunnel; E is the elastic modulus;is the Poisson’s ratio…
The scale of the model is . The parameters of the rock are
.
radial distance is smaller than 5 to 6 times of the tunnel radius… The impact of lateral pressure coefficient has not been studied. The software of ABAQUS can be used to solve this
i Several scholars have offered their explanations on…