查询词典 rock-bottom

Tiefeng rock tunnel is a control project in Wanzhou-Kaixian expressway.The length of the tunnel exceeds 6?000m.The geological conditions of the tunnel are very complex,including groundwater ingression,firedamp,gypsum strata,soft rock deformation, rock outburst etc.The construction is difficult.Some construction methods are studied for Tiefeng rock tunnel to pass the complex zone mentioned above.

铁峰山2号隧道是重庆万-开高速公路控制性工程之一，隧道左右线长度均超过6 000m，隧道穿越的地层复杂，存在突水、煤层瓦斯、煤巷采空区、石膏岩地层、软岩变形、岩爆等不良地质现象，工程地质条件极为复杂，施工难度大，施工防护要求高。

Actually this is not west Qiao mountain formerly pretty, and break forth before being seven hundreds and eighty millions years from submarine volcano the extinct volcano that rock thick liquid, rock piece and volcano form after ash, level besides mountain body in steep, form if lotus clothing complex, scale the summit rock forms such as first, 9 dragon rocks, the stone of dried mushrooms and swallow rock of summit house crowd summit multifariously.

其实，这并非西樵山原本的俊俏，而是七八千万年前由海底火山喷发岩浆、岩块、火山灰后形成的死火山，山体外陡内平，状若莲衣复合，大秤峰居群峰之首，九龙岩、冬菇石、燕岩等峰岩态万千。

According to characteristics of igneous petrology and spatial types of reservoir, igneous reservoirs of Jiyang depression are divided into four categories: fractured irruptive rock reservoir, fracture-pore thermocontact metamorphic rock and irruptive rock compound reservoir, pore volcanic debris cone reservoir and fracture-pore overfall basaltic rock reservoir.

根据火成岩岩石学特征及主要储集空间类型，将济阳坳陷火成岩油藏分为四类：裂缝型侵入岩油藏，裂缝—孔隙型热接触变质岩、侵入岩复合油藏，孔隙型火山碎屑锥油藏，裂缝—孔隙型溢流玄武岩油藏。

The model can reflect the multi-sets feature of the rock masses in practice, consider the influence of the joint orientation and strength to the rock masses deformation feature, and simulate the simultaneous sliding, tension and close behaviors of the multi-sets jointed rock masses extending the joint surface, and reflect the plastic deformation induced the rotation of the principle stress axes. The result can be extended to fractured rock masses with arbitrary set joints.

该模型能反映实际工程中岩体的成组节理特性，考虑节理产状和强度对岩体变形特性的影响，可用来模拟岩体中多组节理同时存在滑动、张开、闭合的行为，并能反应由于应力主轴旋转所产生的塑性变形的影响。

It is a megadepression evolving from a Mesozoic back-arc paraforeland basin to a Cenozoic intermountain basin, and filled with large sets of argillaceous rock, calcareous mudstone, carbonate rock and clastic rock of saliniferous-semisaliniferous environment under the semidry climate of inland lakes which form a set of giant-thick hydrocarbon source rock with two periods of hydrocarbon-expulsion peaks, two types of reservoir series as well as special capping and migration conditions.

是一个由中生代弧后准前陆盆地向新生代山间盆地发展演化的一个大型坳陷。充填了内陆湖泊半干旱气候下咸化环境－半咸化环境的大套泥质岩，含钙质泥岩及碳酸盐岩和碎屑岩。形成一套巨厚的具两期排烃高峰的烃源岩，两种类型的储集岩系、特殊的盖层条件及运移条件。

In order to study the stability of stratified rock slope in Zhu-Cheng road and its reinforcement method, the potential deformation and slipping mechanism of slope were analyzed using insitu-investigation and stereographic projection analysis method. The numerical calculation model for stratified rock slope was founded with UDEC software. The deformation of rock mass was analyzed in the excavation procedure, and the long-short compound bolt reinforcement structure was proposed according to the deformation failure mode of stratified rock slope.

摘 要：为了研究竹城公路层状岩质边坡的稳定性及防治措施，通过现场调查和赤平投影分析边坡潜在变形滑动机理；利用UDEC软件建立层状边坡数值计算模型，分析开挖过程中岩土体的变形情况；根据变形破坏模式提出层状岩质边坡的长短锚杆交替复合支护结构。

A good many mico-landblock of the early Neoproterozoic-Cambrian volcanic rock that distribute in the Tianshan orogenic belt and on its both sides, and the Carboniferous-Permian volcanic rocks that widely distribute in the Tianshan and adjacent regions are selected for subject investigating in this paper. Renewing the ocean-land format and ocean-land conversion process of Tianshan orogenic belt in the Paleozoic is the masterstroke for this paper. On the basis of detailed field investigation, many subjects, such asregional lithology、geochemistry、structural geology、volcanic sedimentology geology、sotope geochronology and synthesis analysis study of geophysics data, are adopted as instrumentality in the paper, this study lays emphasis on the formation, evolution and dynamics of early Neoproterozoic-Cambrian and Carboniferous-Permian volcanic rock in the Tianshan and its adjacent regions to find out Carboniferous-Permian volcanic rock property, eruptive sequence, time and space distribution characteristics, to resume and reconstruct evolution process of Carboniferous-Permian volcanic rock, and to explore connection of magmatism process and lithosphere stretching action of neopaleozoic ocean-land transformation in the Tianshan region.

本文选择分布于天山及其两侧的诸多微陆块上新元古代—早寒武世火山岩和天山地区广泛发育的石炭纪—早二叠世火山岩为研究对象，以恢复重建天山造山带古生代洋陆格局和洋陆转换过程为主线，在详细的野外工作基础上，综合运用区域岩石学、地球化学、构造地质学、火山沉积学、同位素地质年代学、区域地球物理资料综合分析研究等多学科手段，重点研究天山及其邻区新元代—早寒武世和石炭—二迭纪火山岩系的形成演化及其动力学，查明天山石炭纪火山岩系的性质、喷发序列、时空分布特点，恢复重建其形成演化过程，探索天山地区晚古生代洋陆转换过程中火山岩浆作用与岩石圈拉伸作用的关系。

This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.

本文主要模拟岩石渐进损伤破坏过程，确定岩石三维损伤张量的定义，对损伤张量进行简化计算并得出其工程计算方法，采用等效应力假设得出有效应力的基本表达形式，对有效应力进行对称化，得出节理损伤岩体的三维本构关系，在有限元方程中实现弹塑性和损伤耦合；借鉴弹塑性渐进退化方法的思想，采用有限元的方法模拟岩石损伤渐进破坏过程，用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序，通过模拟已有的实验破坏过程，得出模型的破坏图像和轴向荷载变形曲线，与实验结果基本一致。

Seismites can be subdivided into many types,such as seismic corrugated rock,shattered rock,seismic collapse rock,autoclastic breccias,intraclastic parabreccia,liquefied breccia and seismoturbidite rock.

研究区震积岩的岩石类型则主要包括震褶岩、震裂岩、震塌岩、自碎屑角砾岩、自碎屑副角砾岩、液化角砾岩及震浊积岩等。

Because of rock formation drillability is very important to our dilling program,we need to design one equipment to test the rock formation drillability,which is rock formation drillability experment equipment..this equipment is delight and dependentable,which can quickly testing the rock formation drillability,This equipment has wide useful feature.

因为岩石可钻性对钻井工程有很重要的作用，所以我们需要设计一台测定岩石可钻性的实验设备，即岩石可钻性试验机。该设备轻便、可靠，能方便、快捷的测定岩石的可钻性，具有广阔的应用前景。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。