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- It concludes that percolation of roller compact concrete is of self-compactness by time effect under continuous action of water head and there may exist partial Darcy flow regime in roller compact concrete under high water head. 認為在持續水頭作用下,碾壓混凝土的滲透具有時(shí)效自密性;高水頭作用下的碾壓混凝土可能存在偏達西流現象。
- With ethidium bromide (EB) as probe, it was found by fluorescence spectra that DNA conformation was more compacted as the alkyl chain of APG increased. However, even C 12APG could only partially compact DNA. 以溴化乙錠為探針 ;熒光光譜法研究證明 ;隨APG鏈長(cháng)增加 ;DNA構象縮攏程度加大 ;但即使是C12 APG也僅能使DNA構象部分縮攏 ;推測DNA僅是部分鏈段對APG膠束進(jìn)行包裹 ;其它鏈段仍處于伸展狀態(tài) .
- The Tuka hydropower project is a medium-sized hydropower development with a roller compacted concrete gravity dam in Yunnan province,China. 云南土卡河水電站是一個(gè)中型水電工程,攔河壩為碾壓混凝土重力壩。
- With the fast developing of roller compacted concrete technique in building dam, currently the height of dams becomes more and more heigh. 隨著(zhù)碾壓混凝土建壩技術(shù)的迅猛的發(fā)展,目前建壩高度越來(lái)越高。
- A new method for anti - seepage coating of roller compacted concrete dam by using wet - mix shotcreting polyacrylate emulsion cement mortar(PAE mortar) is presented in this paper. 針對碾壓砼壩上游面的防滲,提出了濕法噴涂丙乳砂漿集中防滲的新方案。
- There has made a huge advance in roller compacted concrete damming technology of our country after about 20 years of further research and practical application. 經(jīng)過(guò)近20年的深入研究和工程實(shí)踐,我國碾壓混凝土筑壩技術(shù)已有了很大的進(jìn)步,其壩型、壩高、壩體體積和工程數量都已達到或超過(guò)目前世界先進(jìn)水平。
- The problem of thermal stress and a need for temperature control in the mass concrete construction also occur in the roller compacted concrete dams(RCCD). 大體積混凝土的溫度應力問(wèn)題與溫度控制要求在碾壓混凝土壩中同樣存在。
- It is also important that the mix contains adequate quantities of materials in proportions suitable for producing a homogeneous and fully compacted concrete mass. 它還重要,混合包含材料的充分數量在比例適當為生產(chǎn)同類(lèi)和充分地變緊密的具體馬薩諸塞。
- The structure of the dam body and the diversion waterway of the 21st monolith of Longtan Roller Compacted Concrete(RCC) Gravity Dam is analyzed based on 3-D finite element method. 采用三維有限元法,對龍灘碾壓混凝土重力壩21壩段壩體及引水道組合結構進(jìn)行了分析。
- In the experiment the author study on increasing the durability (including strength, dry shrinkage, abrasion resistance and freeze resistance) of roller compacted concrete (RCC) by mixing fly ash. 摘要試驗采用在碾壓混凝土中摻入粉煤灰(其摻量占膠凝材料總量的10%25~45%25)的方法來(lái)提高碾壓混凝土耐久性(包括強度、干縮、耐磨性和抗凍性)。
- Roller compacted concrete is one of new road engineering materials, and it is helpful for solving conflicts among our country's requirements for construction and funds and resources for construction. 摘要道路碾壓混凝土是一種新型筑路材料,有助于緩解當前我國建設需求與建設資金、資源矛盾。
- The performance of RCC is mostly decided by raw materials performance, we should chose proper roller compacted concrete raw materials and study their performance so that the quality is guaranteed. 碾壓混凝土的性能主要取決于原材料的性能,選擇合適的碾壓混凝土原材料并研究其性能,使其滿(mǎn)足高寒地區碾壓混凝土壩的性能要求。
- The mechanism and model of sulfate attack on roller compacted concrete(RCC) with expansive agent have been proposed by investigating the microstructures of RCC with optical micrograph and SEM-EDS. 通過(guò)光學(xué)顯微鏡和電子顯微鏡觀(guān)察分析硫酸鹽對碾壓混凝土的侵蝕特征,提出三種主要侵蝕的方式,并建立理論模型。
- The research project was only a partial success. 那個(gè)研究課題只取得部分成功。
- Abstract: Based on the results of percolation test for core samples from a certain roller compact concrete dam in China, this paper presents a summary review on the law of precolation features of roller compact concrete. 文摘:根據國內某碾壓混凝土工程壩體芯樣滲透特性試驗成果,對碾壓混凝土滲透特性規律進(jìn)行了總結評述。
- high roller compacted concret gravity dam 高碾壓混凝土壩
- He was only partially to blame for the accident. 他對事故只應負部分責任。
- roller compacted concrete construction 碾壓混凝土施工
- He is partially responsible for the accident. 他對該事故負有部分責任。
- The compacted snow on the pavement turned to ice. 人行道上被踩實(shí)的雪已變成了冰。