查询词典 strata granulosum

Due to the over-exploitation of groundwater, subsidence occurred which threaten the development of economy and people's life. It's very important to inspect the structure of water-bearing layer, the distribution of strata and the processing of subsidence.

地下水的长期过量开采导致了苏锡常地区的地面沉降，引发了严重的地质灾害，威胁人民的生活安全，影响了该地区经济的发展；因此，查明含水层结构及各地层的分布规律，研究地面沉降的发生发展过程和机理甚为重要。

Using the advanced analysis technology, such as inclusion measuring temperature, calcite cement's electronic probe and isotope analysis, and the water-core reaction theory, the paper sets up the diagenefic model of coal measures strata, time-temperature model and pore evolutionary model, and provides the basis for seeking the high efficient reservoirs.

利用包体测温、自生石英的氧同位素测定、方解石胶结物的电子探针和同位素分析等先进分析测试技术，结合水岩反映理论，建立了煤系地层的成岩模式和相应的时间温度模型和孔隙演化模式，为高效储层的寻找提供了依据。

As the field work in Xi Shanping Tunnel showing, constructing tunnel in flat dip coal-bearing strata, if there is thick-bedded hard rock nearby, the stability of the wall rock is ensured by the control in soft rock supporting reinforce.

本文对近水平煤系地层中修筑隧道的围岩稳定性进行了深入分析，在含煤岩的围岩变形及应力重分布规律的研究上有所创新，为近水平围岩的支护设计优化提供了可靠依据。

In the steam soak exploitation phase, with time extension and strata pressure drop, steam channeling phenomena becomes serious.

中文摘要：稠油在蒸汽吞吐开采阶段，随着开采时间的延长，地层压力下降，汽窜现象变得严重。

It is important to reduce the span of the hard roof to avoid its impact load on supports. However, at longwall top coal caving face, the periodical weight of roof is a main factor that crushes the top coal, which is beneficial to the top coal recovery. How to use the roof pressure safely is of crucial importance in top coal caving. Based on field monitoring, theoretical analysis of strata movement, the numerical model of compound structure of hard roof stepped cantilever and the top coal cantilever beam is built, and the parameters of the model are also determined. The elasto-plastic finite element method is used to analyze the effect of hard coal fracture under the abutment pressure of hard roof, and the cracking coefficient is defined according to the stress state of the element.

通过对岩层移动的现场观测，建立了&两硬&条件综放采场台阶悬臂—悬臂梁组合的煤岩组合结构力学模型，并以此煤岩结构为基础，建立&两硬&条件综放采场顶煤压裂的有限元数值模型，分析了坚硬顶板不同来压步距对坚硬顶煤的压裂效应，并确定了合理的支架阻力，从而对坚硬顶板进行有效的控制，消除坚硬项板对采场的冲击隐患，同时保证采场矿压对坚硬顶煤的有效压裂，达到提高顶煤回收率之目的，由此形成了坚硬顶煤、坚硬顶板条件下综放采场围岩控制的基本理论和方法。

Furthermore, the paper illustrates how to obtain topography influence depth on self-weight stress field of horizontal, homogeneous and isotropic strata.

此外，本文举例说明了如何求得地形对水平均质各向同性水平岩层的自重应力场的影响深度。

In this paper,by analyzing ground behavior measure data from the working face N101 in Qinyuan coal mine,strata pressure laws of fully mechanized top-coal caving face in three-soft seam are discussed.

通过对陕西秦源煤矿N101综放面实际观测数据进行分析，得出了&三软&复杂结构煤层综放面矿压显现活动规律，并对支架的适应性进行分析。

Screw can tolerate sand strata.

螺杆泵能耐受地层出砂。

During the operation of the salt cavern gas storage, the salt bed around the salt cavern will generate variation of stresses because of strata pressure and internal pressures of the salt cavern s.

盐穴储气库在运行过程中溶腔周围的盐层受到地层压力和溶腔内压的多重作用而产生应力变化。

Based on the efficient approach developed above, cases of foundationinhomogeneity with stiffness varying according to an exponential function along the radialdirection, and cases of foundation inhomogeneity with stiffness discontinuity and with weakinterlayer strata on the earthquake response of concrete arch dams as well as gravity damswere analyzed. It is found that taking into account the effect of foundation inhomegeneity forthe earthquake safety assessment of concrete arch and gravity dams has great significance.

在以上理论的基础上，本文充分利用比例边界有限元法能够模拟非均匀无限域的优点，合理地提出了重力坝、拱坝的非均匀无限地基模型，分别研究了地基材料弹性模量沿深度按指数变化的无限不均匀地基和地基中存在断层或软弱夹层时对重力坝和拱坝的地震响应影响。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。