裂隙擴展 的英文怎麼說
中文拼音 [lièxìkuòzhǎn]
裂隙擴展
英文
crack propagation-
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。Finally, some simplification methods to the model were studied and a modified block elimination contraposing the features of the model ' s linear system was developed, which can greatly decrease the model ' s requirement to computer resources. in the second part, numerical methodology of hybrid techniques was developed, which uses dfn models developed in the fist part to build continuum approximations of fractured rock
第三，本文將一種用離散的水?氣分界面模擬非飽和滲流的數值模型擴展到裂隙網路中，為用本文所構建的離散裂隙網路模型模擬裂隙巖體成富擁要柳廳錄非飽和滲流提供了一個初步的框架。This text studies the fracture rising laws, the expanding direction, the expanding length, discontinuous jointed rock mass constitutive model and damage evolution equation
本文研究了裂隙的起裂準則、擴展方向、擴展長度以及裂隙巖體本構模型和損傷演化方程。Erosion damage decreases rock load area, after defining damage variable, the damage stress in rock can be calculated by the method bring forward by lemaitre conveniently. for surrounding rock of a deep buried tunnel under the condition of drained, its seepage character is not only controlled by the high stress in rock, but also influenced by the development of erosion damage. in the whole course of rock " s deformation and failure, its seepage character decreases with the increment of stress in elastic stage, while " increases with the development of failure
巖樣中全應力?應變三軸滲透試驗過程中的典型表現為隨著應力的增加，巖體內的空隙和裂紋受載閉合，滲透性降低，應力達到一定閾西南交通大學鷹士研究生學位論文第11頁值后，巖體內部裂紋發生擴展和歸並，滲透性增強；同樣，地下水的動、靜壓力作用對裂紋的擴展和歸並也起著促進作用。Based on real time ct testing, primary testing study of fatigue failure and deformation mechanism of red sandstone has been completed under uniaxial compression condition
摘要基於對裂隙巖石的細觀ct試驗，對含有單一裂紋的貴溪紅砂巖在單軸疲勞荷載作用下的損傷擴展機理和演化過程進行了初步的試驗研究。Based on a large numbers of model / simulation test of the intermittent cracked rock - like samples, fatigue strength, fatigue deformation and crack appear in preexisting cracks tips, the growth of crack, the pattern of crack coalescence are studied / analysed systemically by means of cyclic load and static load, in the course of the model test, the difference between cyclic load and static load of crack appear in preexisting cracks tips, the growth of crack and the pattern of crack coalescence are observed and analysed
在試驗過程中，觀察並分析了循環加載方式下，預置裂隙端部裂紋萌生、擴展、巖橋貫通模式與靜載方式下的差異；探討了疲勞裂紋萌生、擴展的機理，分析了加載頻率、荷載水平對裂隙試樣疲勞強度、疲勞變形（總變形和不可逆變形）的影響規律。The thermal fatigue resistance of al2o3 - 20wt. % tic is the best, it is due to high kic and pore of the material. the pore decrease the stress extension of tip of cracks and delay themal shock fatigue cracks extension. 4
含20wt . tic的復合陶瓷具有高的k _ （ 1c ）和較多的孔隙，這些空隙在熱震疲勞時降低熱震疲勞裂紋尖端的應力集中並阻礙裂紋擴展從而提高了材料的斷裂抗力，故其具有最好的抗熱疲勞性能。( 3 ) principle analyse produce powder bag stress produced to explode involve and produce and catch gas can cut function mechanism that crack expand further gathering mainly according to fracture mechanics
（ 3 ）根據斷裂力學原理分析了主爆藥包爆炸產生的應力波及爆生氣體對聚能切割裂隙進一步擴展的作用機理。According to thorough research on mechanical mechanism of 3 - d tensional micro - fracture producing, this point is put forward the first time that : there is more stress concentration in the circumference of micro - cracks. and the cracks are easier to expand and to link with each other when the fissures contained saturated pore fluid than dry state. therefore, it is necessary to modify the griffith criteria
4深入研究了三維張性微裂縫形成的力學機理，首次指出：在裂隙內飽含孔隙水的情況下，微裂縫周邊的應力集中程度更高，裂縫更容易擴展乃至連通，因此，在張裂縫發育的研究中應該對格里菲斯準則進行修正。( 4 ) what has cut the crack and expanded further has blown up simulation number value to calculate, expand the function played on the crack after verifying the main powder bag
（ 4 ）進行了切割裂隙進一步擴展的爆破模擬數值計算，驗證了主藥包對裂縫擴展所起的作用。At first, the author has analyzed the theory, mechanism and shock - absorption in pre - split blasting, studied the rising of crack, expanding and stopping, and did various factors which influence on the crack of rock in pre - split blasting. the main factors have been determined to be the strength of mineral and rock, the diameter of drill, the type of explosive and the growth degree of crack. then, the author has researched bp neural networks " work principle, structure and defectiveness
首先分析了巖石成縫的理論、機理和減震作用，研究了裂紋的起裂、擴展和止裂；分析了各種因素對巖石預裂爆破成縫的影響，確定了礦巖強度、孔徑、炸藥類型和裂隙發育程度作為主要影響因素；並研究了bp神經網路工作原理、結構和缺陷，把改進的bp神經網路運用在巖石預裂爆破參數設計中，建立以礦巖強度、孔徑、炸藥類型和裂隙發育程度為主要影響指標的bp神經網路的預裂爆破參數設計識別模型；運用matlab6 . 5語言開發了爆破參數設計的智能系統，實現了預裂爆破參數設計的自動化，用工程實例驗證系統模塊的功能。分享友人