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。
The intercalations are divided into five types, such as muddy intercalation, silty intercalation, calcareous intercalation, marly intercalation, and gravel intercalation
夾層類型主要有泥巖夾層、粉
砂質泥巖夾層、灰質夾層、泥灰質夾層和
礫石質夾層5種。
An area covered by sand and gravel deposited at the front of a glacial moraine
冰川前
砂礫層冰河冰漬前沉積的沙及
礫石覆蓋的區域
Lode country assume silllike - similar silllike, and the next big anastigmatic, ground and west branch river set strench are consistent. it suffer the gravel silica rock, arena silica control. a handful of lode country or main lode country byway little orebody assume vein, or have the characteristic of balk reappear, compound of branch. these manifest the obvious characteristic of ore construct control
礦體以層?似層狀產出為主,其次為大的透鏡狀,地表延伸與西岔河組地層一致。受
礫屑硅質巖、含
礫砂屑硅質巖控制。少數礦體或主礦體旁側小礦體呈脈狀、或具尖滅再現、分支復合特徵。
Based on the experiment studies, the study on water and solute transport in sandy soil under reclaimed water irrigation was made, the result can give some reference for the effect on soil solute transport and soil environment under micro - contaminated water irrigation
摘要以寧夏回族自治區大武口市森林公園的含
礫砂土為研究對象,通過室內試驗,對中水灌溉條件下
砂礫質土壤在不同灌水量、多次連續灌水、降雨淋洗等不同來水條件下水分、污染物運移的規律進行了初步的研究,為微污染水用於綠化灌溉對
砂礫質土壤中污染物運移及累積的研究提供科學依據。
The primary experiment studies of solute transport in sandy soil under reclaimed water irrigation
中水灌溉條件下含
礫砂土污染物運移的初步研究
Discussion on the pile foundation parameter of driven cast - in - place file supporting course in slightly dense gravelly beds
稍密狀
礫砂層作沉管灌注樁持力層的樁基參數確定探討
The bridge is located on the alluvial plain in the front of pearl river sloping field. its piles pass through weak soil layer, sandy clay and gravel stratum ; piles " sustaining layer sits in weak - weathering or faint - weathering mudstone
該橋位於珠江三角洲坡前沖積平原,採用樁基穿越軟土、亞粘土、砂土和礫砂,持力層置於弱風化和微風化的泥質砂巖和泥灰巖夾泥巖中。