沉陷速度 的英文怎麼說
中文拼音 [chénxiànsùdù]
沉陷速度
英文
rate of subsidence- 沉 : Ⅰ動詞1 (沉沒; 墜落) sink 2 (沉下 多指抽象事物) keep down; lower 3 [方言] (停止) rest Ⅱ形容...
- 陷 : Ⅰ名詞1 (陷阱) pitfall; trap2 (缺點) defect; deficiency Ⅱ動詞1 (掉進) get stuck or bogged do...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 沉陷 : 1. (下陷) sink; cave in 2. (沉降) sinkage; downpunching; depression; subsidence; [建築] settlement
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
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The high or low velocity anomalies ' s locations are consistent with the uplift and depression respectively, and their contacting boundary always correspond the faults exposed on the ground ' s surface. the basement interface that is the bottom interface of the sedimentary cover undulates strongly
上部地殼高速異常和低速異常分別與地表的隆起和坳陷高度一致,高速異常和低速異常的接觸帶往往與地表的斷裂位置有良好的對應關系,沉積蓋層底部的基底界面橫向上起伏變化較大。It was shown that salt expansion value of low liquid - limit clay was accumulated before the sixth freezing and thawing cycles, but the increment of salt expansion was reduced gradually with increasing cycles ; the salt expansion accumulation of low liquid - limit clay could be separated into three phases ; the deformation of clayey sand was mostly frost heave and subsidence under cycles, and collapsibility value of clayey sand was accumulated with increasing cycles ; the variation of salt expansion ratio and collapsibility ratio was a parabolic function of freezing and thawing cycles
試驗結果表明:低液限粘土前五次凍融循環過程中鹽脹具有較好累加性,隨著凍融循環次數的增加,鹽脹量增長速度逐漸降低;含砂低液限粘土的鹽脹過程可以被分為三個階段;粘土質砂在凍融循環過程中的變形主要為凍脹和沉降變形,具有較好的溶陷累加性;低液限粘土、含砂低液限粘土的鹽脹率和粘土質砂的溶陷率與凍融周期之間的關系符合二次拋物線變化規律。The several ones that have more lager sensitivity to embankment settlement are found out. then, aimed at the traditional three - layer bp network ' s shortages : easily getting into local minimum value and slow convergence, the modification combined momentum method with self - adaptation study velocity is made, and one improved bp network is put forward. finally, according to the results from above sensitivity analyses, the nonlinear model main parameters of each natural layer in roadbed are approximately rectified using the improved bp network technology founded on its stronger nonlinear mapping capacity and the settlement measurements
採用非線性有限元程序,對鄧肯-張模型中8個參數與路堤沉降的關系進行了詳細分析,找到了影響沉降的主要參數;接著,針對傳統的三層bp網路具有收斂速度慢、易陷入局部極小點等不足,對其進行了修正,提出了改進的bp神經網路模型;最後,根據上述靈敏度分析結果,基於改進的bp網路模型較強的非線性映射能力和前期沉降實測資料,對路基中各天然土層的非線性模型主要參數進行了反分析修正; ( 4 )路堤沉降計算一維法中考慮應力歷史、側向變形的研究。At lower growth temperature, the lower extracting rate of carbon atoms from catalyst particles due to the lower activity of the catalysts resulted in more defects formed in carbon nanotubes. moreover, the lower transportation rate of carbon atoms in catalyst particles also made lots of carbon atoms deposited on the surfaces of grown carbon nanotubes, or on carbon wrapped catalyst particles, even to form amorphous carbon layers
在較低溫度時,由於催化劑的活性較低,導致石墨面在生長過程中引入的缺陷較多;另一方面,碳原子在催化劑顆粒內遷移速率較低,使得多餘的游離態碳原子(或原子團)可能在納米碳管表面以非晶形式沉積,或者包覆催化劑使其「中毒」失去催化活性,或者直接形成非晶的碳納米顆粒。分享友人