地下的

So, in order to achieve safety mining , itis necessary in the course of underground mining that research the super terrane moving-rule and the effect on ground movement and the stope ground pressure's regularities ofdistribution.

因此，为实现矿山的安全开采，在地下开采过程中，必须对地下开采引起的上覆岩层的移动规律及其对地表移动的影响和采场地压分布规律进行研究。

Jianghan plain, located in the middle-south of Hubei province. Its ground water resources degree of development and utilization are high. The primary exploitation layers are the upside pore confined aquifer and the underpart cranny and pore confined aquifer. With the rapidly development of urbanization and economic,the water consumption is increasing.That have coused the local ground water table decent.In someplace,the excessive exploitation have induced the groundwater table fall and collapse.

江汉平原位于湖北省中南部，其地下水资源开发利用程度较高，主要开采的为上部[Q_(2+3)]孔隙承压含水层和下部[Q_1+N]裂隙孔隙承压含水层中的水，随着区内城市化建设和经济的迅速发展，用水量增加，区域地下水位已有一定幅度的下降，局部地区因过量开采已形成地下水降落漏斗和地面塌陷等现象。

By and large, research projects undertaken by the Group fall into three categories. The first is geotechnical properties and prevention of geological hazards, with the stress on researches on dynamic properties of marine soil, coast-beach erosion and seabed failure, sediment reformation by benthonic fauna, failure of submarine pipelines, environmental geotechnical techniques, etc. The second is research on pollution and treatment of water and soil, with the stress on researches on ecological effects of exploitation activities in the marine environment, treatment of beach sediment pollution, treatment techniques of sea organism pollution, groundwater PRB treatment technique development, etc. The third is exploration of underground environment and geophysical data processing techniques, with the stress on devising equipment for detecting underground pollution and geological hazards, environmental GIS (Geographical Information System) and related analysis software, etc.

学术团队开展的研究课题大体上分三类：第一类课题是岩土体性质与灾害防治，侧重于海洋土动力特征研究，岸滩侵蚀与海床破坏研究，海洋底栖生物对沉积物改造研究，海底管线失稳研究，环境岩土工程技术研究等；第二类课题是水土污染过程与治理研究，侧重于海洋开发活动的生态环境效应研究，海滩沉积物污染治理研究，海水生物污染治理技术研究，地下水PRB治理技术开发等；第三类课题是地下环境探测技术与软件开发研究，侧重于地下环境污染与灾害探测设备的研制，环境地理信息系统，专业性应用软件的开发等。

And it is verified that the simulation methods in this paper are rational and the model is feasible.(2)Using the unconditionally stable implicit Newmark time intergration algorithm, the effects of some key factors such as buried depth, condition of soil layers and the earthquake excitative orientation are studied.The results show that dynamic response of structure is considerably affected by the thickness of overburden layer, and horizontal slice is more dangerous than upright slice.

2采用无条件稳定的Newmark隐式积分法进行地震响应分析，讨论各种因素对地下结构动力响应的影响，如：结构埋深、土层分布条件和地震激励方向等，并通过对结构的应力、位移、加速度等结果的分析，发现上覆土层厚度对结构动力响应比较大，水平分层比竖向分层更容易使地下结构遭受破坏。

Through investigating a large number of surface fractures in the eastern Sichuan Basin and combining the observation results of subsurface core fractures in the middle part of the Sichuan Basin, the relation between the surface fractures and the subsurface fractures is discussed and a set of projects to classify fractural types based on the structural origin is proposed out in this paper.

通过对四川盆地东部大量地面裂缝的调查研究，结合川中地下岩心裂缝观测结果的验证，探讨了地面裂缝与地下裂缝的关系，提出了一套以预测为目的的构造成因裂缝类型划分方案。

In the meantime, Ingersoll and plass Kelvin line source in accordance with the concept of the underground pipe line heat source heat exchanger theory, but at that time because of low energy prices, high system costs, has not been widely applied. 70 era, the oil crisis put people's attention to the energy-saving, cost-effective use of energy, so that the development of ground-source heat pump into the climax stage, when the underground pipe from an early plastic pipes replaced by the amount of possession.

在此期间，Ingersoll和Plass根据Kelvin线源概念提出了地下埋管换热器的线热源理论，但当时由于能源价格低，系统造价高，没有得到广泛应用。70年代，石油危机把人们的注意力集中到节能、高效益使用能源，使地源热泵的发展进入了高潮阶段，此时地下埋管已由早期的金额管改为塑料管。

It was in these subterranean levels that the native Utai carved an underground society, while on the surface plains, the taller Pau'ans developed.

过去的时代中，地下各层里本土的优泰人经营着一个地下社会，而在行星的表面平原上高个的帕安人发展出了另一个文明。

According to the characteristics of huge underground openings and the layered rock mass, the author finds that the rock mass of side wall along the dip direction is easy to slide along bed plane and the rock mass of side wall athwart the dip direction is easy to bend. The possible geological problems of excavating underground openings in layered rock mass are analyzed, some corresponding countermeasures are also put forward.

结合巨型地下洞室群工程及陡倾角层状岩体的特点，通过分析得出陡倾角层状岩体中大型地下洞室顺倾向侧高边墙岩体易于顺层滑动、反倾向侧高边墙岩体易于倾倒弯折变形破坏的特点，并提出了围岩稳定可能面临的工程地质问题，以及可供采用的对策技术。

Some conclusions are drawn from the calculating results: when buried pipes cross fault, pipe's embedded depth should be shallow, and big pipe diameter and thick wall should be selected. Avoid the site where fault moves severe, and select suitable pipe-fault angle. Bigger pipe-soil friction coefficient is helpful for buried pipe crossing fault. Under dynamic loading, buried pipe would first damaged in compressive region of bilateral fault, so special treatment should be done to pipe in bilateral fault region.

依据计算结果分析了各因素对地下管道破坏的影响，并得出几点结论：管土摩擦系数较大情况下，管道破坏较轻；地下管道在穿越断层时，管道宜浅埋，并选取大管径、壁厚的管道；应尽量避开断层错动较大的位置，并选取合适的管道穿越断层角度；在受动荷载作用时，管道在断层两侧受压区先破坏，故在断层两侧要进行特殊处理进行防护。

From the water pressure test and the collapsing examples, the thesis analysis the force expression of Karst collapse in water table dropping down, and presents that the additional stress from water table descending in overlying soil layer and rock, which is equal to approximately the descending depth of water table, which can be applied to about ten meters descending depth.

针对地下水位波动引发的岩溶塌陷进行了专门性研究。通过试验文章指出了岩溶区地下水位受迫下降至基岩面以下时的力学效应为：附加力在一定范围内，与在基岩面以上一样，等于水位下降的幅度值，并与盖层下基岩中洞穴的形态及体积无关。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。