頂板壓力 的英文怎麼說
中文拼音 [dǐngbǎnyālì]
頂板壓力
英文
backpressure-
In the process of work, according to complex geological conditions such as huge thick soft clay in site and top surface of possible pile foundation supporting course fluctuating in large amplitude, we adopted many advanced exploratory methods ( just as high accuracy exploration of shallow earthquake, crosshole wave velocity test, vane shear test, pressuremeter test, etc. ), we found out that there is an ancient groove of yangzi river in former plant site, therefore we suggested in time that plant site should properly be moved eastwardly, only this item saved nearly about 50 million for pile foundation project cost
在工作過程，根據廠址區軟粘土厚度大、可能作為樁基持力層頂面起伏變化大等復雜地質條件，採取了多種先進的勘探手段（如高精度淺層地震勘探、跨孔波速試驗、十字板剪切試驗、旁壓試驗等） ，查明了原廠址區存在一個長江古凹槽，並及時建議廠址適當東移，僅次一項就節省樁基工程費用近5000萬元。Effect of igneous rock on the roof pressure of mining field
火成巖對采場頂板壓力分佈的影響The anchorage force of bolt, the displacement of deep surrounding rock, and the surface displacement of the gateway were comprehensively observed, indicating that the testing entry affected by dynamical mining pressure still keeps stable, achieving a good supporting effect
錨桿受力、圍巖深部位移、頂板離層及巷道表面位移綜合觀測表明，受回採動壓影響后，試驗巷道穩定，支護效果好。But bryant pinned the loss on himself anyway, noting that he contributed half of the lakers ' 18 misses from the line and resisting the urge to lament the bizarre basket which proved pretty memorable in a two - point game - - that luke walton and kwame brown conspired to score for the rockets by deflecting a loose ball into the wrong basket
但是科比把失敗的責任攬了過來，只因為罰球線上他投失了9個球，湖人全隊才丟了18個，同時頂住了人們責怪那個將被記入歷史的2分的壓力? ?盧克沃頓和布朗在爭搶火箭投偏的籃板球時不小心將球撥進了對方的籃筐。The principal stress value arised alteration, the magnitude of stress closed to 25 ~ 32mpa, its influence scope was within the scope outside of tunnel opening 10 ~ 15 meter, maximum tense focused at vault and middle of floor about half meter. shearing stress focused at corner of vault and wall, always been sheared
主應力量值也發生了較大改變，壓應力可達25 32mpa ，其影響范圍在隧道邊墻外10 15m ；拉應力集中在拱頂和底板中部約0 . 5m范圍內，最大可達10mpa ；在拱腰和墻腳常為剪應力集中區，易發生塑性剪切破壞。Fabrication of the box beam is divided into such parts as reinforcement, formwork, concreting, prestressing, moving and storing of beam, pipe grouting under pressure, end sealing of the beam, water - proof layer on the bridge surface system, protective coating etc. the paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects, such technologies as : manufacturing and fixing of reinforcement, steel reinforcement fixing baseplate, web plate and top plate respectively and lifting the steel skeleton into form, requirements of design and manufacturing and way of utilization for dismantling - erection type formwork and hydraulic formwork, optimization of concrete ratio, concrete pouring process of two ends of beam in priority over the middle, in sequence of first baseplate followed by web plate and top plate at last, concrete pouring in inclined section and in horizontal layer, concrete vibration mainly by external vibrator in assistance with internal vibrator, methods and regulation for steam curing of concrete, dual controls over stress and strain to ensure quality of prestressing workmanship, construction method of effective beam moving by heavy - weight special moving facility, some regulations and key notes about construction of grouting under pressure, beam ends sealing, water - proof layer on the bridge surface system, protective coating
箱梁製造由鋼筋工程、模板工程、混凝土工程、預應力工程、移存梁工程、孔道壓漿工程、梁體封端工程、橋面防水層和保護層工程等施工環節組成。文中介紹的採用胎具製作和綁扎鋼筋，分底腹板和頂板分別綁扎並吊裝鋼筋骨架入模；拆裝式和液壓式兩種模板的設計、製作要求和使用方法；綜合考慮、優化混凝土配合比，混凝土灌注從兩端至中間、先底板、后腹板、再頂板的施工順序和斜向分段、腹板水平分層、附著式振搗為主、插入式搗固為輔的施工工藝，蒸汽養護的方法和規定；應力應變雙控制確保預應力施工質量的施工技術；採用重物移運器有效移梁的施工方法；壓漿、封端、橋面防水層和保護層施工的一些規定和注意事項等都是對箱梁製造行之有效的施工技術和施工方法，並可為以後類似施工作借鑒。The results indicate that if the value of press stress is over certain figure, press stress and al plate ’ s thickness have little influence on sawtooth distortion for the same kind of sawtooth ; sawtooth distortion is well - regulated under static press, while it is irregular under impact press. bottom coating make great influence on bond strength of samples which can improve the value remarkably ; bonding mechanism of clad steel is mechanism of mechanical effect that sawtooth which is hooked occludes with al plate
結果表明：同種齒型，當壓應力大於一定的值時，壓應力和覆板的厚度對齒形的變化影響不大；靜壓下齒形變化比較規則，鋸齒頂端向一側彎曲成鉤狀；沖壓下齒形比較凌亂，鋸齒的頂端沒有明顯的變形；后處理對試樣的結合強度影響很大，打底試樣由於粘結層的作用，結合強度較高；機械作用機制是復合鋼板的主要復合機理，鋸齒彎曲成鉤狀和鋁板形成機械咬合。Safe mining technique for coal face with large mining height and hard roof
堅硬頂板工作面礦山壓力顯現特徵The research of pressure of air shock wave on the cover - board of double - storeyed basements
雙層地下室底層結構頂板空氣沖擊波壓力研究By means of similar simulation, lateral abutment pressure distribution and concentration degree which at the face of the upper coal, the distance between peak stress and coal surface, the influence circle of abutment pressure, and the transfer and weakening of concentrated pressure at the bottom side are analyzed on actual geology data in pingdingshan 8th mine f15 and f ( subscript 16 - 17 )
摘要採用相似模擬的方法，以平頂山八礦己二采區己15和己（下標16 - 17 ）煤層實際地質資料為基礎，分析了近距離煤層上煤層開采時，在上煤層采場兩側向的支承壓力分佈及集中程度、峰值距煤壁的距離、支承壓力的影響范圍；一定范圍內底板中集中應力的傳遞及漸衰減特徵。Research results show that different conformation mode of tectonite roof result in the difference of preservation condition of gas, intense pressing process of structural stress in the front of gliding structure result in mine gas outburst, and control on no. 2 gas source in tectonite roof is the best means by which the gas problem can be perfectly solved in gliding structure area
研究結果表明：由於滑動構造區煤層頂板不同的結構類型，導致礦井瓦斯保存條件的差異；滑動構造前緣擠壓帶內強烈的擠壓應力作用是本區瓦斯突出的根本原因；控制采空區頂板的二次瓦斯源是治理滑動構造區瓦斯地質災害的根本之策。Through theoretical analyses in the article, the highly tough top - coal deflection before destroying is in inverse proportion to elastic mould, in direct proportion to tensile strength, and the conclusion that bigger deflection roof can ' t sufficiently transmit the compressible support to top - coal is drawn
通過理論分析，獲得了高韌性煤層煤體在破壞前的撓度與彈性模量成反比，與抗拉強度成正比的關系，並得出撓度較大的頂板不能很好把支承壓力傳遞給頂煤的結論。Therefore, the abnormal strata behavior happened in the advance entry is the result of common action of 3 ( superscript # ) and 2 ( superscript # ) roofs
1303綜放工作面超前平巷發生的奇異壓力現象是3 （上標# ）頂板和2 （上標# ）頂板巖層共同來壓作用的結果。Study on the blind number recognition of the calculation of roof pressure
頂板壓力計算的盲數辨識研究Application of the intelligent monitoring and warning system for the tunnel roof pressure
巷道頂板壓力智能監測報警系統的應用The paper discussed the basic structure and functions of monitoring system of plank pressure based on embedded system underground, and introduced the key techniques to realize this system
摘要討論了基於嵌入式系統的井下頂板壓力監測系統的基本結構和所實現的功能，詳細介紹了實現該系統的關鍵技術。The vertical loading plays a major role in the state of the flexural stress. beneath the mountain belts, the compression decreases and changes to extension from the top of the elastic plate to the bottom. the change of the flexural stress beneath the basin is vice versa
從彈性板頂部向下，造山帶下方的擠壓逐漸減小，到中性面以下變為拉張，然後張應力逐漸增大，在彈性板底部達到最大；盆地下方的變化則與之相反。By the net - shape forming technology, metal sheet is used as a blank, the cylindrical cup is produced through blanking, deep drawing, and etc, and then the cup is clamped to a mandrel rotated together with the main spindle, the pulley is finally produced by several different spinning rollers, which apply the radial spinning forces to the cup in different positions
鈑制帶輪是以金屬板料為毛坯，經過落料、拉深等沖壓工序製成圓筒狀，然後將其裝夾在帶有頂壓座的芯模上，使其隨主軸一起旋轉，通過若干不同齒形的旋壓成形輪分別沿徑向施加壓力而成形。Since the vertical stress distribution of coal and rock can reflect the risk of rock burst, the influence of hardness and thickness of coal seams with a hard roof and a hard floor on the vertical stress distribution of coal and rock was simulated
摘要在堅硬頂板和底板的「兩硬」條件下，對不同煤層厚度和硬度對煤巖體中的垂直應力分佈的影響，也即反映了對煤巖體中發生沖擊礦壓危險性的影響進行了模擬。分享友人