Based on the previous research on the portal crane administration, one standpoint put forward in this paper is idea that is on the foundation of reliability in this paper, two viewpoints take shape when reason is analyzed, that is fatigue break and appearing the flaw that will extend. what is the fatigue break ? ( this phenomenon is always happen in some place ), the fatigue is that board appears apophysis and concave when the board is pressed. so that the board ability of bearing the weight of load will descend
本論文建立在已有的港口裝卸機械管理的研究基礎之上,進一步提出了以可靠性為基礎的港口裝卸機械的管理思想,已有的研究表明,港口機械設備破壞主要由於兩個原因,第一是穩定性問題,特別是構件的局部穩定性,所謂穩定性是指:在板的平面內,板受到平行於板面的
壓力作用,使板發生隆起、內陷等凹凸不平的結果,從而使板受載能力減弱;第二是結構出現疲勞
裂紋及其擴展,這是由於設備長時期運行,而造成設備某些部位出現
裂紋並得以擴展,使設備承載能力下降。
Based on the analysis of thermal contact metamorphic aureoles, granitoid interior structure, quartz axis fabric and strain characters in the different rock unites of yuanshishan granitoid and its wall rocks, the emplacement mechanism of yanshishan granitoid was studied. the magmatic explictite dynamic was advanced in light of regional stress and magma dynamic research. those conclusion was synthesized to ascertain the emplacement mechanism - granitic magma ascended in dikes with the minimum critical width of the magma ascending channels about 2. 213. 88m and located in the core of yindianshan dome with the passive style of dyke explictite ; the later unite is a kind of multiple emplacement mechanism with the character of active emplacement of ballooning
同時運用巖漿動力學原理從另一個角度探討其侵位驅動力。綜上指出:經分凝后的活動性巖漿在深部側向擠
壓和浮力的聯合驅動下,沿深大斷
裂以最小臨界寬度為2 . 213 . 88m的
裂隙脈動上侵,整體以巖墻擴展的方式被動定位於銀殿山穹窿的核部,但後期屋面前單元具有主動侵位的特點應為一種復合定位機制。
Full - flow lubricating oil filters for internal combustion engines - method of test for static burst pressure
內燃機用全流式潤滑油過濾器.第6部分:靜態爆
裂壓力的試驗方法
Methods of test for full - flow lubricating oil filters for internal combustion engines. part 6 : static burst pressure test
內燃機用全流量潤滑油過濾器的試驗方法.第6部分:靜態爆
裂壓力試驗
Determining breakdown pressures in transversely isotropic formation by multipole array acoustic logs
利用多極子陣列聲波測井資料計算橫向各向同性地層破
裂壓力
Using logging information can make the size and direction of in - situ stress, and then determine fracture pressure and breakout pressure so can provide the suitable mud density to solve the mechanics instability of borehole
用測井資料可以確定地應力的大小和方向,從而確定地層破
裂壓力和坍塌
壓力,並給出合理的泥漿密度,解決井眼力學失穩問題。
This thesis integrates the borehole collapse model with the artificial fracture and imaging well logging to get the size and direction of in - situ stress, and set up the reasonable prediction model of fracture pressure and breakout pressure for carbonate profile, by making use of the rock mechanics parameters from logging information, based on comparing the present various prediction models
本文在此綜合應用井眼崩落法、人工
壓裂法和成像測井法以確定地應力的大小和方向,並在分析比較國內外各種地層破
裂壓力和坍塌
壓力預測模型優缺點的基礎之上,從測井資料中提取多種巖石力學參數,建立了適合於碳酸鹽巖地層的破
裂壓力和坍塌
壓力預測模型。
Based on the above methodological analyses and practical situation of feixianguan interval in the luojiazhai and dukouhe structure on the east of sichuan, a set of well log interpretation formation pressure application program is developed. it has been successfully applied to the fine interpretation of luojia4 well and du4 well, and so on. the results of formation pore pressure, fracture pressure and breakout pressure are all accordant with the practical situation
在上述方法理論研究的基礎上,結合川東羅家寨和渡口河構造飛仙關組地層的實際情況,編制了一套適合於該研究工區的地層
壓力測井解釋應用程序,並用於羅家4井和渡4井等井的測井資料精細處理中,所計算的地層孔隙
壓力、坍塌
壓力和破
裂壓力與實測資料相符,且所確定的鉆井泥漿密度窗得到了實際生產的驗證,達到了預期效果。
Method for formation fracture pressure prediction of water injection wells and its application
注水井地層破
裂壓力預測方法及應用
Bottom - hole fracturing pressure
井底
壓裂壓力
Fracture pressure gradient
破
裂壓力梯度
Establishing the model for calculating the fracturing pressure of formation rock during oil gas wells fracturing by using fracture mechanics theory
應用斷
裂力學理論建立油氣井
壓裂時巖石破
裂壓力計算模型
Specification for metallic powders - determination of green strength by transverse rupture of rectangular compacts
金屬粉末規范.矩形
壓坯橫向斷
裂壓坯強度的測定
Degenerated shell element can deal with the crack and crush of concrete, the plasticity of steel bar in shell element conveniently
退化殼單元能方便地處理由於混凝土開裂、壓曲等因素引起的單元沿板厚方向的材料性質的變化。