rock stratum

One of the crucial elements influencing the rock burst is the structure of roof rock stratum, especially the flinty and thick sandstone roof over the coal seam.

顶板岩层结构，特别是煤层上方坚硬、厚层砂岩顶板是影响冲击矿压发生的主要因素之一。

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In 1999, Wang Xiaohai brought forward a method to generate 3D rock-cliff project groundsill model based three-dimensional topological grid structure in the researching of GIS stratum models.

1999年中国科学院岩士所王笑海博士在基于三维拓扑格网结构的GIS地层模型研究中，介绍了利用钻孔资料建立三维岩土工程地基模型的方法。

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Clastic rock and low-grade metamorphic rock , and the non-disease area is mainly in the coal stratum.

通过对重病区 、 轻病区及 非 病区人群的环境摄碘量估算.

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The stratum of main source rock among the marine facies is the upper Sinian and the Paleozoic group.

其中海相地层中的主力烃源岩层为上震旦统和上古生界石炭―二叠系。

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The rock mass structure can be expressed by rock stratum effect thickness influence coefficient. It is more scientific then using roof rock and sand content in the study of coal seam gas preservation.

研究表明，煤层围岩岩体结构控制了煤层瓦斯的赋存，岩体结构可用岩层效应厚度影响系数来表示，应用这一参数研究煤层瓦斯赋存比用煤层顶板岩性及含砂率更科学。

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Jiamuhe formation along the northwestern margin of the Junggar basin is volcanic rock bearing stratum.

准噶尔盆地西北缘五八区二迭系佳木河组是含火山岩系地层,即火山岩和碎屑岩混积地层.

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As to the slant and layered stratum, flaccidity interlayer and fault texture, it separately plotted them out element to simulate the anisotropic character of layered rock mass in finite element ( FEM) analysis.

有限元分析中，对倾斜成层的岩层、软弱夹层及断层节理等分别划分了单元，据以模拟成层岩体的各向异性特征。

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The caving of thick and strong roof stratum, key stratum, causes tremendous rock pressure in mine.

采场上覆岩层中的厚硬岩层, 即厚硬关键层, 其冒落会造成剧烈的矿山压力显现.

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A horizontal dislocation, as of a rock stratum, at a fault.

(地质学)因断层而造成的 、 通常指侧向或水平移位.

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The bearing capacity of these piles consists of frictional resistance of each stratum of soil and rock, and the end bearing of rock.

桩基设计应以桩身混凝土强度、地基对桩所能提供的承载力及桩体总沉降量作为三个控制标准进行设计；

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The geological conditions of Lijiaxia Hydropower Station are very complex, with the slide mass of high slope and week rock stratum.

李家峡水电站地质条件特别复杂，有滑坡体高边坡，软弱岩区等。

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An aquifer is a water-bearing rock stratum such as sandstone and chalk.

地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.

《简明英汉词典》

The Cambrian-Ordovician system is the effective source rock and container rock in the east Tarim area, and it's the target stratum.

塔东地区寒武、奥陶系为有效的烃源岩及储层，为研究目的层系。

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The Carlin-type gold deposit, Wunan gold deposit, was first found recently in carbonate rock stratum.

梧南金矿床是产于碳酸盐岩地层的微细粒浸染型金矿类型.

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The research results showed that when a key layer in the model, the top boundary of the model should be set above the key layer, otherwise, the load distribution and broken distance of the rock stratum would seriously not be true to the original.

研究结果表明，当模型中存在关键层时，应将模型的上边界取至主关键层以上，否则将导致岩层载荷分布和破断距的严重失真；

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