Construction Technique of Underground Cavern with Big Span in Hard Rock

1、

New method for calculating GEOSTRESSES IN FEM analysis of underground houses

地下洞室群有限元分析的地应力场计算方法

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2、

Control of Blasting Vibration of Underground Chamber at a Hydropower Station

地下洞室爆破振动控制研究

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3、

Application of incremental displacement back analysis to hydropower station underground caverns

增量位移反分析在水电地下洞室工程中的应用

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4、

Standard for engineering classification of rock masses ( GB50218-94), the rock engineering geological classification of Code for water resources and hydropower engineering geological investigation ( GB50267-99), Rock Mass Rating system ( Bieniawski, 1973) and Q-system were used in the rock mass quality classification.

采用工程岩体分级标准（GB50218-94）、水利水电围岩工程地质分类（GB50267-99）、岩体地质力学RMR分类及岩体质量指标Q系统围岩分类，对左岸地下洞室区围岩按其基本指标作出定量化评分、分级。

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5、

This paper has got the initial stress field and boundary conditions. On this basis, the overall planar elastic-plastic finite element model of the underground caverns was established by ADINA ( a finite element program for automatic dynamic incremental nonlinear analysis).

本文在确定了厂房区的初始应力场和边界条件的基础上，应用ADINA自动动态增量非线性有限元程序对思林水电站地下洞室群建立了平面弹塑性有限元计算模型。

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6、

Based on center diagram method and center cross diagram method, Center drift excavation method is developed as a new construction method for the large-scale shallow tunnel engineering after side drift excavation method and PBA method.

北京地铁施工中所采用的中洞法是以CD、CRD法为基础，继侧洞法和柱洞法（PBA工法）之后发展起来的一种开挖大型浅埋暗挖地下洞室的新工法。

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7、

Based on the NURBS technique and the theory of partition for geologic body, the 3-D engineering geologic model for underground structures is established.

工程区域地质条件是影响地下洞室群布置最主要的因素。本文基于NURBS技术和地质结构单元实体分割理论，建立了工程地质三维整体模型。

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8、

FLAC Analysis of Interaction Between Foundation and Underground Cavern

地下洞室与其上部地基相互作用的FLAC分析

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9、

A series solution for surface motion amplification due to underground group cavities: incident SH waves

地下洞室群对地面运动影响问题的级数解答：SH波入射

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10、

Numerical analysis with flac~ ( 3d) on rock mass stability surrounding cavern group in the left bank slope of a hydropower station on lan-cang-jiang River

澜沧江某电站左岸地下洞室群围岩稳定性的FLAC~（3D）分析

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11、

Improvement of the generation of the initial stress field by using flac~ ( 3d) and application in a huge underground cavern group

FLAC~（3D）分析中的初始应力场生成及在大型地下洞室群计算中的应用

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12、

An analytical solution for dynamic stress concentration of underground cavities under incident plane P waves

平面P波入射下地下洞室群动应力集中问题解析解

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13、

Computer analysis model for natural ventilation network of underground cavity group

地下洞室群自然通风网络计算机分析模型

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14、

Application of CAD three-dimensional model to the stability analysis of underground cavity's wall

CAD真三维实体模型在地下洞室边墙稳定性评价中的应用

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15、

He was seen talking with a young girl.

有人看见他和一个年轻姑娘在讲话。

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16、

Cinderella Story about a young girl doing all the housework was outdated.

《灰姑娘》故事里描述的年轻姑娘做所有家务活已经过时了。

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17、

No man will bear unprotected exposure to a young girl's eyes.

没有人可以忍受赤裸裸地暴露在一个年轻姑娘的眼皮下。

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18、

In it, a young girl had been followed and murdered.

片中，一位年轻姑娘被跟踪并被杀害。

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19、

He has started keeping company with that young girl.

他跟那位年轻姑娘交上朋友了。

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20、

And that's no way for a young lady to behave!

这可不是一位年轻姑娘该做的事！

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