超挖量 的英文怎麼說
中文拼音 [chāowāliáng]
超挖量
英文
extra-dredging-
5 the director ' s prior approval shall be sought if the in - situ dredging volume exceeds 23, 500 m3
如果原址挖泥量超逾23 ， 500立方米，須得到署長事先批準。New technique of control digging shaft
控制井筒過量超挖欠挖的新工藝On the basis of the practice on work of extra - insufficient control and the subsidence of vault and the earth ' s surface, cases of engineering surveying techniques applied in the construction supervision in tunnels are discussed
摘要通過超欠挖控制、拱頂下沉、地表下沉的工程實踐，討論在隧道施工監控量測中工程測量技術的應用情況。Abstract : in order to provide the reasonable parameters in the reliability analysis of tunnel structure and the criterion in the quality control of tunnel engineering, in this paper, the over - under - excavated values of the real - state outline of tunnel excavation are obtained by the near - field photographic method. by using mathematical statistic method, the figure features and probability distributions of the over - under - excavated values of the surrounding rock, including deferent positions of same cross section, are analyzed
文摘:採用近景攝影的方法，從隧道開挖毛洞中獲取圍巖超欠挖數據，通過數理統計的方法，分析各類圍巖超欠挖的數字特徵及概率分佈，同時得出各類圍巖超欠挖在隧道斷面不同部位的分佈規律，為隧道結構的可靠度研究提供可靠參數，也為隧道工程質量控制提供基準2. through studying the effect of the dredging length, found that it is not a linear relationship between the dredging length and the relatively reduced deposition, for example when dredging exceed a certain length, though the relatively reduced deposition still increase slowly, the depositing volumes begin to decrease
挖槽長度對挖槽效果的影響的試驗研究結果表明，河道相對減淤量的增加與挖河長度的增加並不成等比例線性關系，即挖河長度超過一定值后，雖然河道相對減淤量還有緩慢增加，但減淤效率開始減小。On the basis of analyzing factor ( soil particle composition, soil bulk density, water stable aggregate content, antecedent soil moisture, slope gradient, rain intensity, accumulation depth and soil crust, soil and water conservation tillage measures ) affecting soil infiltration rates, several relation models was obtained ; analyzed in detail different soil and water conservation tillage measures intensifying infiltration rates, while there have the same rainfall condition, the increasing infiltration rates of contour tillage and artificial digging and artificial hoeing in gully areas of loess plateau are 67 % and 41 % and 29 % ; the increasing infiltration rates in hilly areas of loess plateau is 45 % and 22 % and 14 %
在相同的降雨條件下，黃土高原溝壑區等高耕作與直線坡相比，可提高入滲67 ，人工掏挖可提高入滲41 ，人工鋤耕可提高入滲29 ；黃土丘陵溝壑區等高耕作可提高入滲45 ，人工掏挖可提高入滲22 ，人工鋤耕可提高入滲14 。並根據黃土高原超滲產流的概念和水量平衡方程，建立了不同水土保持耕作措施強化入滲速率模型。Because the hull scale is big for large self - propelled trailing suction hopper dredgers, and the automatic degree of the equipments is high, the abroad shipyards i special of europe have the ripe experiences to build such dredgers, which with cad to guarantee the building quality and the time limit for project. relatively, the national shipyards never built such dredgers that hopper volume over 4500 m3. although building the dredgers at home, many be spare and to encourage the development of shipbuilding technique, but the building quality and the time limit foe project cannot be guaranteed
大型自航耙吸挖泥船的船體尺度大，設備裝備的自動化程度高，國外特別是歐州大型造船廠建造此類挖泥船具有成熟的經驗，他們採用電腦輔助設計和輔助建造可保證質量和工期，相對而言，國內的造船廠這些年從未建造過艙容超過4500m ~ 3的中型自航耙吸挖泥船，更沒有大型自航耙吸挖泥船的建造經歷，雖然據估算，在國內建造挖泥船可節省一些投資，又可藉此激勵國內造船技術的發展，但其建造質量和工期難以保證，權衡利弊，以選擇國外建造大型自航耙吸挖泥船的方案為好。An efficient algorithm qais is proposed that uses the efficient method to reduce database access activity, and present a novel algorithm aiu based on this algorithm, it is fit for mining association rules and incremental updating. it is especially effective in vldb, mining long patterns, and high support. the perfermance of qais / aiu is verified on the basis of synthetic data, experiments show that the proposed algorithm can mine association rules more efficiently by not generating candidate itemsets and reducing the redundancy of frequent itemsets while generating association rules
然而目前大多數挖掘關聯規則的演算法往往必需多次掃描事務數據庫才能達到要求的目標，這樣重復性的數據庫存取動作將會導致過多的執行時問浪費在i o動作上，另外在頻繁集生成規則時現有的演算法沒有考慮到規則的大量冗餘，為了解決這個問題本文提出了一個不需要生成候選集同時有效的去除生成規則時產生大量冗餘的演算法qais ，來提高關聯規則生成的速度，並且在此演算法基礎上提出了新穎的關聯規則增量更新演算法aiu ，通過應用合成數據驗證了qais aiu演算法的有效性，由試驗結果來看這個方法確實能更有效且準確地獲得事務數據庫的關聯規則，尤其適合挖掘超大數據庫中高支持度下長模式的挖掘。Qi ming ( the president of school of electronic commerce, ec ) will give a lecture about “ electronic commerce, ec and digging creativity ”
1超重量級人物祁明（電子商務學院院長，中國信息化百名學術與管理帶頭人）的「電子商務與創新潛力挖掘」講座。Structural analysis using ansys was also performed to extract the influence of geometric design of subgrades on the responses of pavement structures, especially in cut - fill transitional section over longitudinal profiles and in cross sections. the determination of pavement materials as a result of traffic accumulation, environmental influence, and / or poor construction quality was investigated through the analysis of critical responses
結合實際交通軸載，全面分析了超載車輛對路面破壞的影響，同時還針對路基斷面型式、填挖過渡，施工質量、環境作用、材料退化等因素對路面關鍵響應的影響進行了分析。Construction of flat tunnel of large span at extra - shallow depth must be conducted on the principle that advance grouting should be strictly performed before excavation and length of pull at one time should be short, together with reinforced support, immediate closing and constant monitoring and surveying. that preceding pilot tunnels, large - volume excavation divided into small ones, excavation of flank before that of center, upper before lower, arch before wall etc is a good method which could effectively reduce surface subsidence and its adverse effect on adjacent buildings, in addition, some other measures are also taken to lessen blast - induced vibration in the ground and surrounding structures. in a word, all means and steps mentioned above have already proved effective and practicable in practice
軟弱大跨超淺埋扁平隧道必須按「管超前，嚴注漿，多分部、短開挖、強支護、快封閉，勤量測」的施工原則進行施工，採用「眼鏡超前，化大為小，先側后中，先上後下，先拱后墻」的施工方法控制地表沉降和對周邊建築物的影響；採用「多分部，化大為小，短進尺，密布眼，弱裝藥，設減振槽」 ，控制爆破振動，經過實踐證明，這些方法都是行之有效的。Abstract : in this paper the mathematical model for shape optimization of arch dam subject to crack - depth constraint is estabilshed and the super finite element method ( sfem ) for arch dam cracking analysis is used as the re - analysis method. the research findings on xiaowen arch dam show that the shape optimization of arch dam subject to crack - depth constraint may further help reduce the volume of dam
文摘:本文引進裂縫深度約束條件，研究了拱壩開裂條件下的體形優化設計問題.結構分析採用超級有限單元法，既能有效控制計算規模又能方便地反映結構開裂的局部特性.對小灣拱壩和溪洛渡拱壩進行的優化設計研究表明，在優化過程中允許開裂並考慮開裂約束條件，可以更好地挖掘拱壩潛力，進一步減小壩體混凝土方量分享友人