rock strata 中文意思是什麼
rock strata
解釋
巖層-
The lay of the strata can imply that the rock splits easily along its direction of cleavage.
成層的地層意味著巖石易於沿著其解理方向裂開。 -
Eight aspects related to the study of early precambrian metamorphic stratigraphy are dealt with in this paper : general situation of the study ; complexity of the stratigraphy and difficulties of the study ; thoughts and methods of the study ; division of rock suite, rock group and complex rock ; researches on important regional discordances ; types and characteristics of protolith and recovery of palaeoenvironment ; correct differentiation of the metamorphic strata, ttg rock system and other metamorphic plutonic rocks ; determination of the ages of the metamorphic strata
摘要主要論述了與早前寒武紀變質地層（學）有關的8個方面的問題：早前寒武紀變質地層的研究概況；早前寒武紀變質地層的復雜性和研究難度；早前寒武紀變質地層研究的思路和工作方法；早前寒武紀變質巖石地層單位巖群、巖組和雜巖的劃分問題；重要區域性不整合的研究；鑒定變質地層的原巖類型、巖石性質和恢復古環境；正確區分變質地層和ttg巖系以及其他變質深成巖；變質地層時代的確定。 -
Based on testing data in worksite and engineering practice, the strata damage movement characteristics, rock properties of weathered zone and qualitative and quantitative analysis of the mechanism of coal layer safety extraction in efflorescent oxygenized belts were discussed
摘要根據現場觀測和工程實踐，論述了風氧化帶內煤層開采時，覆巖破壞移動特徵，風化帶巖石屬性和風氧化帶內煤層安全開采機理的定性、定量分析。 -
The strata of the region are divided into two structural layers : the basement rock consisting of metamorphic rock and cover layer of mesozoic and neozoic sedimentary rock.
將本區的地層劃分為兩個構造層：既變質巖系構成的基底構造層；中生代、新生代的沉積巖系構成的蓋層構造層。 -
To provide the fundamental concepts of sedimentary processes and environments and the main features of sedimentary rock strata so that the students can apply the knowledge of sedimentology to the research of resource exploration and environmental changes
提供同學沉積作用和沉積環境的基本概念和沉積巖層的主要特性，並介紹如何利用沉積學的知識從事資源探勘和環境變遷的研究。 -
The interaction between sensor and wall rock in the measurements of strata stress in theological rock
在軟巖中測量地應力傳感器與圍巖的相互作用 -
Dongzigou ag deposit and jianbaoshan au deposit are hosted in the sandstone of middle - proterozoic suberathem, which are developed from the proterozoic sediment metal source - rocks formed during the meso - proterozoic volcanism and reworked by the mesozoic tectono - magmatism during the formation of the metamorphic core complexes in eastern hebei. the dongzigou ag deposit has the characteristics of reformed strata - bound origin, the jianbaoshan au deposit, located in the detachment fault, is the alterated rock type. both deposits have the similar wall - rock alteration, and show the same trace element behavior, and ree patterns. they are the results of the multi - stage tectono - magmatism in the environment of continental extension in eastern hebei region. their mineralization depended on their wall rocks and relative location in metamorphic core complexs
賦存於中元古宙長城系常州溝組的洞子溝銀礦床和尖寶山金礦床是由密雲-都山變質核雜巖構造體系所控制的一組礦床。其成因為中元古宙火山巖漿活動形成的沉積礦源，后經中生代的變質核雜巖構造巖漿體系疊加改造而成。洞子溝銀礦床具有層控迭加改造的特點尖寶山金礦床則具有破碎蝕變巖型礦床的特點。 -
There are a series of lead - zinc polymetallic deposits, such as fozichong, dongtao, xiashui, wenlongjing and jilongding distributed along the fault zone. these deposits have some similiar features : ? ll of them are bounded in the strata of lower palaeozoic group ; ? ain orebodies occur as stratiform or stratoid form with occurrence consistent with that of host strata ; ? tratiform skam or baritic rock are the direct country rock of orebodies ; ? ypical syngenetic sedimentary fabric preserved in the ore. these deposits may be included in the same metallogenic series
佛子沖、東桃、下水、文龍徑、雞籠頂等一系列鉛鋅多金屬礦床沿該斷裂帶分佈，這些礦床雖然在成礦規模、賦礦層位和礦石礦物組成等方面存在一些差異，但均產于下古生界地層中；主要礦體呈層狀、似層狀產出，與地層產狀大體一致；直接賦礦圍巖為層狀綠色巖或重晶石巖；礦石中保留有典型的同生沉積組構。 -
The main achievements obtained in this paper are as follows : 1. some of new recognitions were obtained on such aspects as strata sequence, rock type, metamorphism, hydrothermal alteration and the sedimentary environment by the study on many profiles in this area, with discovery of volcanic rocks for the first time in ore - bearing strata and ore bodies
取的了如下主要成果和認識： 1 、通過對礦區地層多條剖面的研究，對地層的層序、巖石類型、變質作用、熱液蝕變及原巖沉積環境有了新的認識，特別是在賦礦地層及礦體中首次發現了火山巖。 -
Incorporated with the surveying of geo - stress and rock stress analysis, the feature of rock stress can be found and the strata behaviors induced by coal mining can be predicted, which will supply geology information for safe mining
地質動力區劃方法以板塊構造理論為基礎，以區域構造形式為主要研究對家，進行活動斷裂的劃分，確定區域構造形式。 -
Abstract : based on the data obtained from field observations and deformation monitoring, this paper deals with the deformation and failure of a double - decked slope composed of soft rock strata in its lower part and hard - brittle rock strata in its upper part. it is demonstrated that the deformation of this kind of slopes is always initiated by the non - homogeneous rheological compression of the lower soft rock strata, leading to the tension fracture and toppling of the upper hard rock strata, and at last the sliding of the whole deformed body will be caused by the shear failure along the stress - concentration zone in the lower soft rock mass under the actions of the gravitational loading and infiltration water
文摘:以現場考察和變形監測資料為依據，探討一個下部有軟弱基座，上部為硬脆性坡體的「二元結構」邊坡的變形破壞問題，揭示這類邊坡的變形總是以下部軟弱巖體的不均勻壓縮流變為先導，進而引起上部硬脆性坡體的拉裂與傾倒，最終通過滲入水的作用，使下部承載狀況已進一步惡化了的軟弱巖體，沿剪應力集中帶發生剪切破壞而導致整個變形坡體的下滑。 -
The andesite clasts were most likely derived from erosion of igneous rock in middle jurassic time, and the limestone clasts were derived from cambrian and ordovician strata. dolomite clasts were derived from the middle proterozoic jixian group
安山巖礫石是中侏羅統髫髻山組火山巖剝蝕的產物，灰巖礫石來自於寒武、奧陶系灰巖，白雲巖礫石主要來自於薊縣系白雲巖。 -
Under the consideration of the engineering geological condition of dahuashui hydropower station, the pre - splitting blasting technology and reasonable construction method are adopted for the excavation of the dam foundation in accordance with the analysis on the rock strata therein, in which the design of the blasting parameters and powder charging structure as well as the angle control and the height of the excavating steps are particularly determined, and then better splitting effect is got for the slope excavation and the quality requirement of the construction is satisfied as well
摘要結合大花水水電站大壩工程地質條件，通過分析巖層具體情況，採用預裂爆破施工技術，合理施工方法進行壩基開挖，並對爆破參數和裝藥結構的設計，鉆孔的角度控制和梯段高度精心確定，使該邊坡開挖預裂取得良好的效果，保證了壩基開挖的質量要求。 -
With the rapidly development of minefield and the rapidly increase of coal output, the excavation scope and depth will extremely rise, the excavation work is under the overlying by the thin rock strata, and under the thick loose bed, the population in mine field will be more and more, the relevant basic industries will also develop rapidly. the mines will discharge more water from the underground, and the production and living will also consume more water. so the original water resource balance system in the minefield will be broken, the ecological environment formed by the nature will be destroyed in some degree
隨著礦區迅速發展而煤炭產量的快速增長，既定在薄基巖厚鬆散層下的神東煤田開采范圍和深度勢必急劇增大，相應的人口也增加，與其相匹配的其它基礎工業一併迅猛發展，導致礦井外排水和生產生活用水直線猛增，這一系列生產和生活巨量用水必然會打破礦區原始的水資源平衡體系，不同程度的破壞自然形成的脆弱的生態環境。 -
Numerical simulation of failure process of overburden rock strata caused by mining excavation
采動影響下覆巖垮落過程的數值模擬 -
The example analysis indicates that the compound key strata objectively exists in the motion of rock strata, and it plays a much more important controlling role than that of single rock, which is separated from same rock groups
實例分析表明，復合關鍵層在巖層運動中是客觀存在的，比同組巖層分開后的單一巖層的控製作用的線性疊加要大得多。 -
Collapse characteristics research on roof rock strata with 3dec in full - mechanized caving mining
焦作礦區煤層瓦斯合理預抽期的研究 -
Key strata is a rock seam which plays an important controlling roles in the movement of mining overlayer strata while the key strata is sometimes made up of two or more compound rock strata
摘要在采場覆巖運動中起主要控製作用的巖層為關鍵層，而有時關鍵層是由2層或2層以上巖層形成的復合巖層所組成，我們稱其為復合關鍵層。 -
The interior failure mechanism of rock strata developing from large - scale excavation and the rules of land surface deformation are analyzed on the base of careful investigation
在詳細調查的基礎上簡要分析了地下大面積采空后巖土內部破壞機制和地面變形規律。 -
According to the deep analysis on the formation mechanism of compound rock strata, the mechanical condition of compound rock strata formation and the related formula are obtained to build up the differentiate method of the compound key strata in the coal face strata and the corresponding differentiate program is made
本文在深入揭示復合巖層形成機理的基礎上，給出了形成復合巖層的力學條件與數學表達式，進而建立了采場覆巖中復合關鍵層的判別方法，並編寫了復合關鍵層的判別程序。
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