concrete in mass 中文意思是什麼
concrete in mass
解釋
大體積混凝土-
Construction of a mass concrete is in the construction process, because of cement let out in large quantity hydration heat and surface of a mass concrete let out heat, make its temperature, humidity cause to ascend and descend, and it causable constringency transform will be unavoidable
大體積混凝土結構在施工過程中，由於混凝土中水泥熟化時放出大量的水化熱及其隨后的表面散熱，使其溫度、濕度出現升降變化，並由此而引起的收縮變形將是無法避免的。 -
In cold region, crevices emerged on the surface of mass concrete because of cold waves
對于嚴寒地區寒潮是大體積混凝土產生裂縫的主要原因。 -
Abstract : in cold region, crevices emerged on the surface of mass concrete because of cold waves
文摘:對于嚴寒地區寒潮是大體積混凝土產生裂縫的主要原因。 -
Analysis of hydration heat and crack - resistance of high micro - slag in mass concrete
微礦粉在大體積混凝土中水化熱及抗裂分析 -
In order to detect the bottom thickness, cavity, leak and deformation of steel meshes in secondary lining of concrete in tunnel construction, the authors evaluate the wave character and the detected result in the second lining of the tunnel using surveying radar technology and conclude the wave character in the tunnel lining which has mass defect and tested the accuracy and reliability of this technique
摘要為檢明隧道混凝土二次襯砌中的底界厚度、空洞、漏水、鋼筋網變形等質量問題，利用探地雷達技術，通過對檢測方法及工程檢測實驗的研究，進行隧道二次襯砌中雷達波形特徵參數及檢測結果評價，總結了隧道襯砌質量問題的雷達波形特徵，驗證檢測方法的精度和可靠性。 -
By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few
通過對本次試樁施工工藝的檢測和樁身質量及承載力的檢驗，確定了沖擊鉆在溶洞地質條件下的合理使用方法；基樁承載實驗表明了荷載與摩擦阻力之間的關系，並對巖溶地區的嵌巖灌注樁的荷載傳遞和破壞機理、承載力特性，進行了富有成果的現場測試工作；試驗數據表明樁側摩阻和支盤端阻起很重要的作用，樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大，承載力也較設計增加；使用力學數值分析方法和有限單元法，對鉆孔灌注樁樁端下的巖體強度和結構穩定性方面進行模擬計算和定量研究。 -
The proportion of plastic shrinkage cracking is rather high in early cracking. the plastic shrinkage cracking would effect construction appearance and promote the propagation of drying shrinkage cracking or other types cracking, but also provide a passage for aggressive agents penetrating and moving to the concrete mass
塑性收縮裂縫在早期裂縫中佔有相當大的比重，其存在不僅影響工程外觀，促使乾燥收縮裂縫或其它形式裂縫的發展，而且還將為侵蝕性介質向混凝土基體滲透、遷移提供通道，對混凝土的耐久性造成嚴重影響。 -
In charge of one of major subjects of the national eighth five - year plan, i. e. " study on shotcreting techniques of polyacrylate emulsion cement mortar for impermeability coating of pu ding rcc dam ", the achievement of which has been appraised by the ministry of electric power and evaluated as reaching national leading level. 2. in charge of the major subject aided by the committee of national natural science funds, " study on durability of high bolumes of fly ash concrete ", the first phase achievement of which has been commended by the committee. 3. in charge of one of major subjects of the national ninth five - year plan, i. e. " study on high performance concrete in marine engineering, design and construction ". 4. acting as one of editors - in - chief of " technical specification for abrasion and cavities resistance of concrete in hydraulic structures ", which is issued by the ministry of water resources. 5. by providing the repairing and strengthening schemes on seepage and cracks of the basement of nanjing lukou international airport, the air traffic opening of the airport was ensured as scheduled. 6. consulting services on techniques of high performance and abrasion - erosion resistance concrete for three - gorges project, anti - corrosion of reinforced concrete strutures for the ore port of shanghai baoshan iron and steel works, mass fly ash concrete for jiangyin yangtze river bridge and pumping concrete for nanjing yangtze river second bridge
主持國家「八五」攻關項目「普定碾壓混凝土壩上游面丙乳砂漿防滲層大面積施工工藝研究」 ，成果通過部級鑒定，評價屬國內領先水平； 2 .主持國家自然科學基金重大項目「高摻量粉煤灰混凝土的長期性能研究「 ，階段成果獲國家自然科學基金委通報表彰與獎勵； 3 .主持國家「九五」攻關項目「海工高性能混凝土成套技術研究」 ； 4 .水利部「水工混凝土抗沖磨防空蝕技術規范」的主編之一； 5 .為南京祿口國際機場地下室修漏與裂縫補提出技術方案被采納並實施，為機場如期通航作出貢獻； 6 .為三峽工程抗沖磨高性能混凝土技術、上海寶鋼礦石碼頭鋼筋混凝土防腐蝕技術、江陰長江大橋大體積粉煤灰混凝土技術、南京長江二橋泵送混凝土技術等提供咨詢建議。 -
Temperature control in mass concrete using fuzzy theory
應用模糊控制理論進行大體積混凝土施工過程的溫度控制 -
Counter - measures against fracturing in mass concrete
大體積海工混凝土裂縫控制的研究 -
In the article, the mechanism of temperature field has been researched and the math model of 3d unsteady temperature field is established according to analyze the cracking reason, produce mechanism of temperature crack, the specialty of crack in mass concrete. the thermal conduction equations are converted into extremum of functional analysis through calculas of variations
本文通過對大體積混凝土裂縫的成因，溫度裂縫的產生機理，溫度裂縫的特點，研究了大體積混凝土溫度場機理，建立了數學模型，並用變分原理將三維瞬態溫度場的熱傳導方程問題轉化為泛函的極小值問題。 -
The paper presents a series of anti - cracking measures taken during the construction of mass concrete in hot weathers to prevent concrete cracking. with these measures, anticipated results were achieved
摘要文章闡述了熱天大體積混凝土施工過程中，到了預期的效果。為防止混凝土裂縫的產生，採取了一系列相應的防裂措施，達了預期的效果。 -
The fem equations of computing water temperature in cooling water pipe are deduced by the principle of water - body heat quantity equilibrium to resolve the problem of water pipe cooling in mass concrete
針對混凝土中埋設冷卻水管的問題，利用水體熱量平衡原理，推導出求解冷卻水邊界沿程水溫的有限元計算方程。 -
7 make use of model theories of equilibrium management of chain - pole to control quality, planned speed, invest of mass concrete in construction process
7利用鏈桿平衡管理模型理論控制大體積混凝土施工過程中的質量、進度、投資等，從而獲得最佳管理水平等的理論。 -
Therefore, increase concrete anti - pull to stretch ability and reduce concrete control is very necessary. base on above reason, for research of measure of anti - crack of mass concrete in not carry have very of important meaning
為了提高混凝土的抗拉伸能力和減少混凝土的內、外部約束，研究大體積混凝土在非荷載應力作用下的施工系統控制具有十分的重要意義。 -
Get theories about best management level. consequently express, adoption above theories and result of test of mass concrete be in progress system control to construction, can effective reduce cracking in mass concrete not carry stress function
結果表明，大體積混凝土採用以上的施工措施和試驗方法所提供的結論進行施工過程的系統控制，能有效地降低大體積混凝土在非荷載應力作用下裂縫的開展。 -
On one hand, the stress in mass concrete is caused because of the difference between internal temperature and external one. on the other hand, with the concrete solidifying, the tensile stress will appear due to concrete ' s shrinkage restrained by base rock
大體積混凝土一方面由於內外溫差而產生應力，另一方面，由於混凝土的凝固，收縮變形受到約束，混凝土會產生拉應力，一旦溫差引起的應力和收縮變形引起的應力超過同齡期混凝土的極限抗拉強度，混凝土就會產生裂縫。 -
Causes for generating fractures in mass concrete are analyzed. measures to prevent fracturing are introduced, which include selecting of material, formulation variables, construction techniques and so on
摘要大體積混凝土表面容易出現裂縫，影響混凝土質量。從材料選擇、配合比設計和施工工藝等方面闡述了大體積海工混凝土裂縫控制方法。 -
So it is necessary to study on mass concrete in high - rise building
所以對于高層建築大體積混凝土的研究依然十分重要。 -
In charge of application research on anti - corrosion of reinforced concrete and crack resistance of mass concrete of xiamen haicang bridge, the technical problem in using 525 early - strength cement in mass concrete of anchor blocks has been solved by using high quality and large quantity of fly ash and superplasticizer in concrete acting as an invited expert in appraising bids of engineering materials for haicang bridge
完成廈門海滄大橋混凝土防海蝕和錨碇大體積混凝土防裂應用研究，採用優質粉煤灰和高功能外加劑解決了早強型525水泥在錨碇大體積混凝土中應用的技術問題，被聘為海滄大橋工程材料招標評標專家。
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