gravity lowering 中文意思是什麼
gravity lowering
解釋
重力下降-
Based on several actual cases, the temperature control measures for roller compacted concrete ( rcc ) gravity dam and arch dam such as structural jointing for construction ; lowering of concrete placing temperature ; water pipe cooling ; surface insulation ; inclined - layer placing etc., the measures to improve the material properties i. e. the application of micro - expanding concrete ; enhancement of material crack - resistance property and the requirement for the simulative analysis on both the temperature field and stress field as well as some problems concerned are summarized herein on the basis of the analysis on the material properties ; construction characteristics and the changing characteristics of the thermal stress of roller compacted concrete
摘要從碾壓混凝土的材料特性、施工特點、溫度場溫度應力的變化特點入手，結合幾個工程總結了碾壓混凝土重力壩、拱壩的分縫方式，降低澆築溫度、水管冷卻、表面保溫、施斜層碾壓等溫控措施，採用微膨脹混凝土、提高材料抗裂性能等改善材料性能措施及碾壓混凝土溫度場、應力場模擬分析的要求和應注意的問題。 -
Abstract : at first, the shaking table test of a gravity pier model was done. the comparison between the test data and the theoretical analysis results of the model showed that they are identical to each other. the dynamic model of a whole bridge with gravity piers and lead - rubber bearings was set up. the positive role of lead - rubber bearings on lowering the seismic responses of railway bridge and the seismic character of gravity piers were analysed. some earthquake resistance measures of railway bridge with gravity piers were put forward
文摘:首先進行了重力式橋墩模型振動臺模擬地震試驗，試驗與理論分析結果基本一致;然後建立了採用鉛芯橡膠支座的重力式橋墩橋梁全橋體系動力分析模型，計算分析了鉛芯橡膠支座對橋梁的減、隔震作用及重力式橋墩的抗震性能，提出了重力式橋墩橋梁的抗震措施。 -
The basic uneven settlement problem were controlled well, also the anti - liquefied problem of sand layer nearly was solved in this plan. when increasing the basic gravity after the project completion, the proportional lowering of seepage damage of sand in overburden foundation are greatly improved
基礎不均勻沉降問題也能得到較好控制，防砂層液化問題也基本解決，在工程完建后增加基礎壓重的情況下，覆蓋層基礎中砂層的滲透破壞坡降也大大提高。
分享友人