buried pipeline 中文意思是什麼
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Grey forecasting of corrosion speed for electric heat - concomitance pipes of buried pipeline at liaohe teshi
遼河特石埋地管道電伴熱管腐蝕速度灰色預測 -
Technical specification for directly buried steam heating pipeline in city
城鎮供熱直埋蒸汽管道技術規程 -
Determination of gross heat transfer factor for the buried pipeline
埋地輸油管道總傳熱系數的測定 -
Technology standard of petroleum asphalt coating for buried steel pipeline
埋地鋼質管道石油瀝青防腐層技術標準 -
There are many methods to detect the quality of the buried pipeline coating, and the advantages and disadvantages of these methods are studied intensively. electrochemistry method which can detect faults of coating and peel them off at the same time is proposed
埋地管道塗層質量檢測方法多種多樣，深入研究了各種方法的優缺點，並最終提出了能同時檢測破損和剝離缺陷的電化學方法。 -
Through the parametric studies, the inelastic behavior of a buried pipeline differs so much from that of the beam or ca
由於實際中針對每一個通過斷層的管子做三維的殼模型有限元分折是頗費時間的，為了 -
Considering different soil spring models for vertical fault movement and horizontal fault movement, two damage cases of pe pipeline in ji - ji earthquake have also been simulated. the large deformation of a buried pipeline under fault movement is investigated in the 4th chapter. to examine the inelastic behavior of buried pipelines, the parametric studies on pipe material property, diameter ( d ), diameter - to - thickness ratio ( d / t ), crossing angle ( ), as well as soil stiffness, have been conducted using a shell - spring fem method
對於0 p三90 」的情況，當斷層位移相對管徑還不是很大時（管子內的彎曲應變與軸向拉伸應變相差不大的情況） ，斷層附近管子變形形式與梁相似；當斷層位移相對管徑很大時（管子以軸向拉伸應變為主的情況） ，斷層附近的管子軸線變形為一圓弧，管子表現得像一條沒有彎曲剛度的索。 -
Temperature drop calculation of waxy crude in a buried pipeline after shutdown using enthalpy formulation
採用焓法方程計算埋地管道含蠟原油停輸溫降 -
Influencing factors of buried pipeline ’ s damage and numerical modeling are investigated. complex site conditions, fault and fluid - pipe coupling are considered. considering soil - pipe interaction, boolean operator is used to merge site and pipe, and site - pipe physics contact is solved through soil - pipe friction
考慮到場地和管道間的相互作用，在adina三維有限元建模過程中，應用布爾操作實現場地與管道間的幾何融合，並通過管土摩擦解決場地與管道間的物理接觸問題。 -
So, it is necessary to study the seismic reliability of lifeline systems for the needs of earthquake hazard mitigation. this paper presents some methods for solving these problems, which is based on the fact in our country. the main contents includes : 1 ) the seismic damage behavior of the buried pipeline is analyzed by synthesis
對此，本文從我國城市抗震防災工作對基礎性研究的迫切需要出發，結合我國城市地下管網系統的實際情況，在綜合分析了現有國內外相關研究的基礎上，以理論探討和工程實用性並重，對城市地下管網系統的地震可靠性分析方法進行了較為全面系統的研究。 -
Based on the application studies of pcm, dcvc, cips and scm in protective coating for long - distance buried pipeline and the characters of long - distance buried pipeline in shandong, the synthetic inspection technology of protective coating for long - distance buried pipeline is proposed
摘要通過對電磁電流衰減法、直流電位梯度法、密間距電位測試技術、雜散電流測試儀在埋地長輸管道外防腐層檢測上的應用研究，並根據山東省埋地長輸管線的分佈特點，提出了聯合檢測方法。 -
For the long - distance buried pipeline, this technology can be used to assess the integral status of the protective coating, to judge the corrosive status of the pipeline around dilapidating point, to localize and evaluate a really dilapidating point, to estimate the effect of cp, and to arrange the maintenance ' s order
該項技術可以對管道外防腐層整體狀況進行評估、判定破損點處管道腐蝕狀況、破損點的定位及面積大小的估算，評價陰極保護效果，確定管道的維修次序。 -
Equivalent circuit model corresponding to buried pipeline system is analyzed, which laid firm foundations of electrochemistry theory application to the detection of pipeline coating faults
研究了埋地管道體系的等效電路模型，為將電化學理論應用於管道塗層缺陷檢測打下了堅實基礎。 -
Compared with the beam model, the shell - spring model proposed in this paper can examine the failure mode of a buried pipeline under the fault movement more clearly. the occurrence of the third damage in thames water pipeline is specially discussed in chapter 3
在模擬土耳其地震大口徑鋼管的震害中，本文殼模型的分析結果與eidinger的梁單元模型比較，可以更清楚地解釋管子第三處破壞產生的原因。 -
When a buried pipeline goes through permafrost zone, thermal action between medium in pipeline and permafrost occurs and causes the frozen earth thawing, so the thaw settlement forms around the pipeline
摘要埋地油氣管道通過永凍土地帶時，由於管內介質與周圍的凍土發生了熱力作用，使冰土解凍，在管道周圍形成融化圈。 -
Under dynamic loading, buried pipe would first damaged in compressive region of bilateral fault, so special treatment should be done to pipe in bilateral fault region. buried pipeline ’ s damage under fluid - structure interaction is analyzed through adina - fsi with conveying medium and velocity in consideration
在考慮管內介質及流速的情況下，應用adina中流體-結構耦合分析求解器adina - fsi分析了固液耦合作用下地下管道的破壞情況。 -
The buried pipeline ’ s damage under dynamic loading is analyzed through numerical simulation method on the basis of automatic dynamic incremental nonlinear analysis ( adina )
本文主要是應用有限元分析軟體adina對地下管道在動荷載作用下的破壞進行數值模擬。 -
The conveying medium in pipe has great effect on buried pipeline ’ s damage, its flow pattern, temperature, pressure change, velocity, all of these can influence the shell of pipe and its stress distribution. so it is very important to analyze the fluid - pipe coupling
管道內部的輸送介質對管道破壞影響也很大，管內介質的流態、溫度、壓力變化、流速等對管壁變形和應力分佈都有影響，故管道內流體和管道間的耦合分析對地下管道破壞分析很重要。 -
As the importance and particularity of fault to buried pipeline ’ s damage, further investigations of buried pipeline damage crossing fault analyze
由於斷層對管道破壞的重要性和特殊性，對跨斷層地下管道的破壞做了深入分析。 -
2 ) the probabilistic model of seismic damage prediction of buried pipeline is presented. both the seismic response and the resistance of pipe structures are treated as the random variables, and their statistical characteristics are discussed
應用可靠性理論，改進了地下管道地震破壞的概率預測方法，將地震作用效應和管道的抗力均作為隨機變量，並討論了其統計特徵。
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