陡降坡 的英文怎麼說
中文拼音 [dǒujiàngpō]
陡降坡
英文
steep descent-
The study area is composed of sandstone & conglomerate reservoir of alluvial fan & fan delta, which belong to sha3 lower member and sha4 upper member of lower tertiary of yong " an town oilfield in dongying depression. the target stataum develops in the hanging wall of the synsedimentary fault in the scarp zone of dongying depression. the frequently intense movements result in the variation of sandstone and conglomerate reservoir and the evolution of the time and space of sha3 lower member and sha4 upper member in yong " an town oilfield
研究區是東營凹陷永安鎮油田沙三下段、沙四上段的沖積扇和扇三角洲砂礫巖體，目的層發育在東營凹陷陡坡帶同生斷層的下降盤，因斷層多期強烈活動，導致永安鎮油田沙三下段、沙四上段的砂礫巖體成因類型多，時空演化變化大，在扇根一帶小層對比難度大，給油田開發帶來很大的難題，在這種背景下進行流動單元研究難度更大。Besides, the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration. the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings. the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north, the coarse lithology of fan - delta prograded from north to south in fall - hemicycles, and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south, braided stream facies prograded from sorth to north in the fall - hemicycles, but the lacustrine facies and salt lake facies developed in the middle part of the area
詳細的沉積相研究發現，紅獅地區第三系發育有沖積扇、水下沖積扇、河流、三角洲、扇三角洲、湖泊和湖底扇7種主要沉積相類型，並對作為區內主要勘探目的層系的下乾柴溝組和上乾柴溝組進行了以超層序為單位的沉積相平面編圖，以較高的時間解析度揭示了區內沉積相帶的平面展布及其在不同構造背景中的分佈規律，比如在北部的凹陷陡坡背景下，上升半旋迴低水位期通常發育有水下扇、湖底扇等陡岸近源特徵的沉積體系，下降半旋迴高水位期，扇三角洲相粗碎屑巖由北向南進積;在南部的凹陷緩坡背景下，上升半旋迴主要發育辮狀河流相，下降半旋迴辮狀河三角洲相由南向北進積;而中部紅柳泉一獅子溝一帶則為湖泊相沉積和鹽類沉積。The northeast qinghai - xizang plateau is margin area which topographic altitude is precipitate, and which has the high frequent interaction between synoptic system in plateau and westerlies system. the heavy - hard rainfall in this area is strong outburst, lasting short time, which consists the singularity of the plateau being its especial geography position, topography and underlying surface
青藏高原東北部地區位於高原東北側邊坡地帶，是地形高度陡然下降的地區，也是高原天氣系統與西風帶天氣系統較多發生相互作用的地區，由於特殊的地理位置、地形和下墊面條件，產生的大到暴雨天氣突發性強、時效短，具有獨特的高原特徵。With synthesize slope ratio increasing, the stability of cutting slopes decreases, but the stability of sharpen slope affected by natural slopes ratio changes rarely, the stability of cutting slope that height is 30m is change notably due to slope type, whose single slope ratio with madao is inferior to the slope that upper ratio is less than lower ratio with platform in middle part. but the stability of cutting slope with 50m height is little change with the slope type change. with same stratum, slope height, slope type, the cutting slope is inferior to the sharpen slope in stability
結果表明，地層含水量在12 . 0 18 . 0變化范圍內，各種挖方邊坡穩定性均隨濕度的增大而顯著降低；路塹邊坡的穩定性隨綜合坡比的增大而降低，但削坡受自然坡比影響，隨綜合坡比的增大其穩定性基本不變；坡高30m的路塹邊坡穩定性因坡型改變而有明顯變化，且單一坡比多級馬道型邊坡的穩定性較上緩下陡平臺型邊坡的穩定性差，但坡高50m的路塹邊坡穩定性因坡型變化而基本不變；當坡高、坡型、地層條件相同時，路塹邊坡的穩定性較削坡的穩定性差。Study shows that great rainfall influences soil slope safety factor markedly, magnitude of rainfall intensity has a great influence on slope safety factor for steep slope under certain coefficient of saturated conductivity, the surface plant roots affect unsaturated zone seepage field distribution and postpone unsaturated zone moisture content ' s increase, so the soil slope safety factor is enhanced finally
分析結果表明，在土體飽和滲透系數一定的條件下，強降雨對土坡穩定系數影響顯著；土坡越陡，降雨強度大小對土坡安全性影響就俞顯突出；土坡表層植物根系的存在影響非飽和區滲流場分佈，可以延緩非飽和區含水量的增大，土坡穩定系數得到提高。In order to decrease the size of fragmentation and reduce blasting vibration effects on the stability of eastern open pit slope of tongshankou copper mine < this work involved two steps. first of all, based on the experiment in laboratory, this paper presented the optimum blasting parameters and applied it in practice
為降低銅山口礦露天采場生產爆破的大塊率和地震波振動強度，保證采場東幫陡邊坡的穩定，本文在對國內外大量文獻綜合調研的基礎上，首先採用正交設計對現場爆破參數進行了室內模型實驗，得出優化的模型爆破參數后又應用於生產。分享友人