- river: n 1 河，江。 Rriver Thames 或 the R Thames 泰晤士河； the Hudson R 〈美國〉哈得孫河。 the Rriver ...
- axis: n （ pl axes ）1 軸，軸線。2 【植物；植物學】莖軸。3 【解剖學】第二頸椎，第二脊骨。4 【政治學】軸...
Projection algorithm is presented as follows : first, characterize the reference image and the float image and turn into binary images ; then, project the binary images onto the abscissa and y - axis and get the projection vectors ; last, according to the elements of the vectors, the rotation and translation parameters were calculated separately
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。
According to video - recording in the field and computing by making programs, several gravel parameters, such as perimeter, area, long and short axis etc., were gained and the appearance coefficient and variety along the river were computed
This fine oriental complex adopts a symmetrical design with its buildings sprawling along a central axis, complete with colonnades, two wings and a tower at the apex. the three gorges of the yangzi river
They refer to the city belt along yangtze river, the town development axis from north to south, and the three main highway channels from nanjing to chuzhou, mingguang and fengyang, from nanjing to quanjiao and hefei, and from nanjing to the hilly area of jurong