围岩

Therefore, it is necessary to take some reasonable reinforcement measures to guarantee safety of the intersection of adit and main tunnel.

归纳来看，交叉角越小，围岩应力集中程度越高，从设计角度考虑，交叉角应尽量大一些。

Through 3D FEM numerical simulation analysis of construction of the adit and main tunnel intersection structure with different intersection angles, this paper draws the conclusions that the smaller the intersection angle, the higher the concentration degree of the surrounding rock stresses and the larger the adit lining stresses.

本文采用三维有限元数值模拟主隧道与横通道组成不同交角的空间复杂受力交叉结构的施工过程，得出交叉角越小，围岩应力集中程度越高、横通道衬砌结构受力越大的结论。

The orebearing rock is magnetitequartzite, with wall rocks mainly being amphibolite, amphibolemetadolerite and quartz schist.

含矿岩石为磁铁石英岩，围岩主要为斜长角闪岩、角闪变粒岩、石英片岩等。

Furthermore, the effective supporting intensity derived from analogic material simulating test is 0.4—0.5MPa.

指出软岩巷道维护效果好坏的关键是提供给围岩的支护强度是否合理。

Because the increasing of dip angle can lead to special strata behavior which cause difficulties to mining, The strata behavior theory can not be simpely borrowed from that of flat and gently inclined seams. In order to cut down roof accidents and increase production efficiency, the strata movement and stress distribution must be reassessed for seam with deep dip angle.

煤层倾角增大带来了矿压显现的特殊性和开采上的困难，不能再简单地借用水平和缓倾斜煤层的矿压理论，而必须对大倾角煤层围岩运动与应力分布予以重新评价，以降低顶板事故，提高生产效率。

The main paragenetic minerales are: uranophane, uranium blacks, autunite, meta-torbernite, microquartz, quartz, ankerite, calcite, fluorite, hydromica, pyrite, galena, sphalerite, and chalcopyrite.

矿化作用共可分为八个阶段，同位素研究结果表明，矿床中的铀主要来自岩浆溶液，部分轴来自围岩——侏罗系长石石英砂岩。沥青铀矿的同位素年龄为108—109百万年。

The surrounding rocks of Dongwujiazi gold ore vein are mainly metamorphic intermediate-basic volcanic rocks in Jianping Group of Archean.

东五家子金矿矿脉围岩主要是太古宙建平群变质中基性火山岩。

Combined with a progression arithmetic, time series analysis of rock pressure in a tunnel in Zhejiang Province is carried out.

结合累进算法，对浙江某新建隧道围岩压力进行时间序列预测。

Based on the petrological and geochronological study of metamorphic complexes from the Grove Mountains, the following conclusions are reached.(1)Exsolution texture is widely found in clinopyroxene in mafic granulites. A peak metamorphic temperature of 850 C was obtained from the reintegrated compositions of exsolved clinopyroxene. The preservation of augite megacrysts suggests a single episode of high-grade metamorphism for the Grove Mountains.(2)The compositional comparison of garnet from pegmatites with that from country rocks demonstrates that garnet in pegmatites is of xenocryst origin, and late amphibolite facies metamorphism does not occur in this area.(3)The Pan-African charnockite and post-tectonic sheet-like granite were first recognized in East Antarctica. Their occurrences suggest a collisional orogeny during the Pan-African time.(4)The SHRIMP U-Pb zircon dating on various rock types indicates that the major metamorphism in the Grove Mountains occurs at c. 550 Ma, and the tectonothermal evolution terminated at c. 500 Ma. The Grenvillian granulite facies metamorphism did not develop in the studied area.(5)The Prydz belt, the second Pan-African suture within the Gondwana suppercontinent, was further comfirmed based on this study. The Gondwana suppercontinent was not formed by the simply juxtaposition of East and West Gondwana, but by the collision of several blocks during the Pan-African time.

本项目通过格罗夫山地区高级变质杂岩的变质岩石学和同位素年代学研究，获得如下重要认识：（1）发现辉石出溶结构，由此获得峰期变质温度为850 C，并根据火成普通辉石的识别确定该区只存在单相麻粒岩相变质；（2）通过伟晶岩中石榴石斑晶与围岩中石榴石的对比研究提出了石榴石的捕虏晶成因，进而确定该区不存在晚期角闪岩相变质作用；（3）在东南极首次识别出泛非期紫苏花岗岩和后构造层状花岗岩，为泛非构造热事件的碰撞造山成因提供了重要佐证；（4）对不同岩石类型的锆石SHRIMP定年精确地限定了格罗夫山地区主期变质作用发生于泛非期，～550 Ma，热事件结束于～500 Ma，年代学数据没有揭示在该区存在格林威尔期麻粒岩相变质作用的迹象；（5）进一步确认了东南极内部普里兹带的存在，它属于冈瓦纳超大陆内部的第二条泛非期缝合带，据此认为冈瓦纳超大陆并不是由东、西冈瓦纳陆块的简单拼合而成，而是多个不同块体拼合的结果。

The results indicate that the discontinuous surface such as weak interlayer, bedding plane and joints are the major factors which control the deformation of the rock mass, the existence of weak interlayer influenced the distribution of shear displacement, stress and plastic zones, which is also a major factor result the axial forces increased rapidly during construction.

结果表明，结构面（如软弱夹层、层面和节理裂隙等）是控制图岩变形的主要因素，软弱夹层的存在控制了围岩剪位移、应力和塑性区的分布，是导致锚杆轴力增大的主要因素，实时监测资料和理论计算成果吻合良好。

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。