expansive clay 中文意思是什麼
expansive clay
解釋
膨脹性粘土-
Expansive soil is one kind of high plasticity clay which may bring civil engineering heavy damage. it may make construction, especially the engineering of high - type roadbed, appear failure deformation. it is a kind of long - term latent danger to people ' s life
膨脹土是一種會給工程帶來嚴重破壞的高塑性粘土，特別是對高等級公路路基工程和大型結構物所產生的變形破壞作用，往往具有長期、潛在的危險。 -
The proportions and performances of plastic concrete of some cut - off walls at home and abroad, the proportion of self - congealing slurry used in the cut - off wall of third stage cofferdam of three gorges project, mechanics properties of expansive soil slurry and harden clay mortar, and proportions of hardened slurry are introduced
列舉了國內外部分防滲墻工程塑性混凝土基本配合比及性能參數；國內自主研發的自凝灰漿墻體材料及應用於三峽工程三期圍堰防滲墻的配合比；固化灰粘土漿、膨潤土漿的物理力學性能及固化灰漿採用不同制攪方法時的配合比。 -
It was shown by field investigation and lab tests that the types of altered rocks were mostly those of montmorillonitization, and the altered clay mineral was mainly pure montmorillanite, which rendered the altered rock both soft and expansive
野外地質調查和室內測試表明：滇藏鐵路滇西北段出露的多為蒙脫石化蝕變巖帶，蝕變巖的黏土礦物組成絕大多數都是單礦物的蒙脫石，導致該地區的蝕變巖既是強度極低的軟巖，又是典型的膨脹巖。 -
Besides, the paper reveals the difference of mineral component between the fissured clay and the ambient soil by x - ray diffraction test ( xrd ) and discusses its effect to seepage in expansive soil
此外，對合肥膨脹土中裂隙粘土的礦物進行x衍射分析，揭示了其與圍土的區別並初步探討了其存在對滲流的影響。 -
Man - made expansive soil - a unique physical property of remolded silty clay in yangcheng lake region, suzhou, china
蘇州陽澄湖地區淤泥質粘土工程地質特性探討 -
2. the concept design is the key phase of the first stage of system optimization. the paper emphatically discusses with emphasis several issues difficulty to answer, such as the determination of the soil parameters, the soil pressure and the safety factor and the reliability of retaining structure, summaries and analyses the main geotechnical problems during the excavation on the four familiar geologic strata of saturation soft soil on the class i terrace of the yangtze river, aged - clay, expansive soil and loess and investigates carefully the patterns of deformation and destruction of pit slope in the saturation soft soil, puts forward three basic principles of selecting schemes of retaining structure, namely : facing to the problem, facing to the characteristics of excavation and environment
（ 2 ）概念設計是深基坑工程第一步優化? ?系統（方案）優化設計中的關鍵，文中重點討論了概念設計中的幾個難點問題，如土性參數的確定、土壓力的選取、深基坑工程的安全度和可靠度分析等；總結分析了飽和軟土、老粘性、膨脹土和黃土這四類常見地層條件下的深基坑工程中的主要巖土工程問題，其中重點研究了長江級階地上的飽和軟土深基坑邊坡變形和破壞模式，提出了選擇支護方案的基本原則，即：面向問題、面向基坑特點、面向周邊環境特點。 -
Studies on existing and prospect of engineering properties of expansive clay
膨脹土工程性質的研究現狀與展望
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