1、

Because the blocks in deep rock mass exist in the form of tectonic order, therefore continuous medium mechanics as the analytic foundation of rock mechanics lacks basis.

由于深部岩体存在构造等级现象,因而使作为岩石力学分析基础的连续介质力学缺乏依据。

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2、

Heavy medium separation technique for sedimentary phosphate rock

沉积型磷块岩的重介质选矿技术

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3、

Through the medium of expound surface subsidence mechanism, analyses underground rock mass states of in-plane stress and underground opening spatial establishment.

通过阐述地面沉陷机理,分析地下岩体内应力状态和地下开挖空间的形成过程。

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4、

The load and displacement distribution characteristic of anchor cable and host rock medium were compared single anchor with anchor cable group.

比较了群锚与单锚作用下的岩锚本身及宿主介质的荷载、位移分布特征。

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5、

Based on the experiment research of rock matrix dissolution change in different temperature zone under the condition of high temperature, the law of change containing porosity and permeability in oil layer and waterflooding layer which are lied in wide spacing, medium spacing, and close spacing.

以前人对高温状况下,不同温度区带内岩石骨架溶解变化的实验研究为基础,研究了大、中、小井距条件下,油层与水淹层的孔隙度渗透率的变化规律。

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6、

Natural Frequency Formulas for Underground Structures with Consideration of Infinite Space Effect of Rock Medium

计入岩土介质无限空间效应的地下结构自振特性计算公式

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7、

It is expected that diamond enhanced inserts cutter and thermally stable diamond composite cutters are ideal tools for drilling both in hard rock and medium hard rock.

预计在硬岩、中硬岩石中使用金刚石强化柱齿截齿、热稳定性金刚石聚晶截齿是最有前途的。

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8、

We must develop the PDC coring bits technology exteriorly if we want to achieve that kind of drilling results in hard rock such as in soft-medium hard rock.

要想PDC取心钻头在钻进硬岩上取得象钻软~中硬岩层那样的效果,有待于我们进行进一步开发。

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9、

Calculation of bearing capacity of socketed pile in extremely soft medium weathered rock

极软质中风化岩嵌岩桩承载力计算方法探讨

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10、

Suggestions on structural study during geological mapping at the medium-large scale in metamorphic rock areas

加强变质岩区中大比例尺填图工作中构造研究的建议

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12、
13、

The rootless tube shoots rooted on pearl rock medium in 20 days and survived up to95%.

无根苗扦插在珍珠岩基质中约20天发根,成活率达95%。

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14、

Rock is known as a kind of medium material in the construction of tunnel engineering, foundation engineering and mining engineering; therefore, its mechanical properties are the foundation of construction safety.

岩石作为实际工程建设如隧道工程、基础工程、煤矿工程的介质材料,其力学特性为建筑物安全的基础。

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15、

The Haojiahe sandstone copper deposit occurs in the red elastic rock formation of Mesozoic continental facies in central Yunnan, being a medium size one.

郝家河砂岩型铜矿床产于滇中中生代陆相红色碎屑岩建造中,规模中型。

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16、

The values of organic carbon, IH and S1+ S2 reflect that the source rock ranks medium-good one;

有机碳、热解氢指数IH及产烃潜量(S1+S2)反映烃源岩达到中等&好的级别。

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17、

As a typical binary medium, talus deposit is made up of weak parent soil, stiff macadam or rock blocks.

堆积体是一种典型的二元介质,由软弱的基质土与坚硬的碎、块石构成。

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18、

experimental study of lithology and nuclear magnetic resonance for medium sand rock in low resistivity reservoir

低电阻率油层中孔砂岩岩电及核磁实验研究

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19、

for small rotary rock drill bits and rotary prospecting bits to cut soft, medium-hard rock.

用于中小规格冲击钻及旋转勘探钻具,凿进软岩层、中硬岩层。

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20、

application of medium and deep hole blasting technology in medium hard rock tunnel boring at haizi coalmine

中深孔爆破在海孜煤矿中硬岩巷道掘进中的应用

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