围岩

Beginning with areal geologic background, the authors have discussed the features of quartz vein at Rujigou mining area Ningxia, such as lithology, contact correlation with wall rock, scales, space-time distribution, attitudes, assemblage, mineral inclusion, and have compared the quartz vein with the veins within other coalfields and coal measures.

笔者从地质背景入手，较详细的论述了汝箕沟矿区石英脉的岩性、与围岩的接触关系、规模、时空分布、产状、组合、矿物包裹体等发育特征，比较了该区石英脉与诸多煤田和煤系中脉岩的差异。

Gold quartz vein ; country rock alteration type ; prospecting Wulashan lnnerMongolia.

含金石英脉；围岩蚀变；勘查；内蒙古乌拉山

The deformation of oil well casing by creep of surrounding rocks is analysed with finite element methods.

用有限元方法分析了围岩蠕变引起的油井套管变形。

With the construction of large water-power engineering projects in alpine and canyon area,the stability of surrounding rock,stress and deformation of lining under outer and inner water pressure become important.

随着高山峡谷地区大型水电工程的兴建，深埋地下水工隧洞的围岩稳定和内外水压力作用下衬砌应力变形等成为重点关注问题。

Computation makes clear as a result, through the oar is being noted after bracket wall, improved bracket to get power state and suffer force to distributing, achieved support - the body that note an oar - country rock 3 person bear the weight of jointly.

计算结果表明，通过支架壁后注浆，改善了支架受力状况和受力分布，实现了支架-注浆体-围岩三者共同承载。

The main characteristic of shallow tunneling method is to fully utilize the bearing capability of wall rock itself; that is, provide support timely when it is constructed.

浅埋暗挖法的主要特点是要充分利用围岩的自承能力，即施工时适时施作支护。

The practices indicate that comprehensively determining physical and mechanical parameters of rock mass and fully utilizing the bearing capacity of wall rock to optimize the design are of great significance to assure the engineering safety and approve the design level.

实践表明，综合测定岩体的物理力学参数，充分利用围岩承载力优化工程设计，对确保工程安全和提高设计水平具有重要意义。

1 Bring displacement impact analysis for the orthogonal law surrounding rock mechanics parameters and initial tests to stress Quzhi changes will lead to varying degrees of influence displacement volume changes, we can make this change, as the parameters for the impact of displacement.

2.1 巷道位移影响度分析的正交试验法围岩力学参数和初始地应力取值的变化将会导致巷道位移量不同程度的变化，我们可以把这一变化，看作是各参数对位移的影响度。

The result shows that, in the whole range of investigation, the main tensile stress in the tunnel vault crown and bottom is in the horizontal direction, which proves that the vertical peak particle vibration cannot totally represent the stress state of rock.

结果表明，在整个考察范围内，拱顶和底板单元的主要拉伸应力为水平方向，说明垂直振速不能完全代表围岩的受力状况。

This paper presents results of the wall rock resistance, the lining-stress, distortion and stability of XinDaoGou double vault tunnel along Beijing-Chengde highway using the finite element method.

本文以京承高速公路新道沟连拱隧道为实例，应用有限元数值方法对连拱隧道二次衬砌的围岩抗力、应力、变形及其稳定性等问题进行了模拟与分析。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。