超運土方 的英文怎麼說
中文拼音 [chāoyùntǔfāng]
超運土方
英文
overhaul yardage-
Because traffic flow greatly increases in recent years and the rank of actual driving load enhances, causing this bridge to be at the excess load the service condition, so in order to guarantee the bridge ' s transport security, the main body structure of the bridge should be reinforced
摘要長沙市八一路跨線橋由於近年來交通流量大增，實際行車荷載等級提高，使得該橋處于超負荷的營運狀態，為了保證大橋營運安全，需要對此橋的主體結構進行加固，在選擇加固方案時對比了三種加固方法：鋼混凝土組合結構加固方法、混凝土結構擴大截面加固方法、粘鋼加固方法。The results indicate that the thermal stress and comprehensive stress of 6aa dam section and f6 fault concrete tuck during construction and operation are all within the allowed concrete tensive strength. the results indicate that the construction scheme of 6aa dam section and the disposal scheme of f6 fault is feasible and meet the need of dam temperature control and crack. prevention
計算分析表明，施工期和運行期6aa壩段及f6斷層混凝土塞的溫度應力、綜合應力均未超過該工程碾壓混凝土的設計允許抗拉強度，表明6aa ，壩段的施工方案和f6斷層的處理方案在溫控和防裂方面是可行的。In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.
在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。The technology support and local supply could help you to reduce the cost and to get solutions on ultra pure chemicals
本土化的技術支持及本地供應將大大降低您的運行成本，全方位地解決您超純化學品方面的問題。Criterion method of settlement calculating is also introduced in this paper. after comparing the calculating value of criterion method with the data which measured in - site, this paper points out : ( 1 ) settlement brought by side deformation should be taken into account among the super soft silt groundsill in pearl river delta area ; ( 2 ) stress history has a great deal influence to the settlement, but the pre - consolidation pressure pc for the judgement of consolidation state of soil has no credibiliy which is gotten in laboratory
此外，本文還簡述了規范推薦的沉降計算方法，並運用已有的工程實測數據與規范方法計算值進行了比較，指出對于珠三角地區的超軟弱地基。應考慮側向位移引起的沉降；應力歷史對沉降的影響較大，而判斷土體固結狀態指標的前期固結壓力p _ c ，在試驗室得出的數據並不可靠。分享友人