河谷形態 的英文怎麼說
中文拼音 [hégǔxíngtài]
河谷形態
英文
contour of valley-
The main characters of the river - valley landforms are followed : the outstandingly longitudinal range - gorge landforms constitute the unique view of three parallel rivers ; the relative highness difference of the landform is great and the river valley cut deeply ; the formation and evolution of the river - valley landforms are obviously controlled by the geological structure ; the landforms types and the various characters of the landforms combination in the drainage area are prominent ; the geological environment has relatively strong frangibility ; the branches riverhead of the river - valley mostly come from high mountains and lakes, and the river - valleys of the branches along the banks have disproportional distribution
其河谷地貌的主要特徵有：突出的縱向嶺谷地貌，構成了少有的三江併流奇觀；地貌相對高差大，河谷深切；河谷地貌形成演化發育明顯受地質構造控制；流域范圍內地貌類型和地貌組合多樣化特徵突出；地質地貌環境具有較強烈的生態脆弱性；河谷支流水源多發源於高山湖泊，兩岸支流河谷分佈不均衡。Depending on how the ground surface is denuded, the feature of the current crustal stress field and rock stress environment can be calculated analyzing the result in this paper : by analyzing the recovering feature of the elastic deformation of the rockmass in unload - stage under various pressures, it has been found there is close relationship between the recovering degree of the elastic deformation of the rockmass and the unloading degree of the pressure the direction of the major principal stress in the crustal stress field is not consistent with the direction of the crushing stress regional tectonics borne during the last tectonic movement. the evolving degree of the regional geomorphology evidently affects the current crustal stress field, which changes from the self - weight stress field to the horizontal stress field, with the changing of the eroding degree of the regional geomorphology ranging from valley area to hilly country to flat country. in valley area, where there is two stress belts, the bankslope s tress belt and the self - weight stress belt within the mountain. the direction of the major principal stress is nearly parallel to the ground surface and inclines towards the valley in the bankslope stress belt. it is nearly vertical in the self - weight stress belt
通過本文的研究成果，根據區域性地貌的演化特徵，我們可以大致地對現今地應力場進行判斷：在分級卸荷條件下，巖體中彈性變形的恢復具有明顯的規律性，這種規律對于研究地應力場的演變是有幫助的；地應力場中最大主應力方向與區域構造形跡在最近的構造運動中所受區域性擠壓應力的方向無明顯的對應性；區域性地貌形態的演化程度對現今地應力場的特徵具明顯的影響，隨著區域性地貌侵蝕程度由峽谷區、丘陵區、平原區的變化，現今地應力場特徵由自重應力場、水平應力場為主含少量自重應力場特徵向水平應力場的規律變化；在峽谷區，山體中具有兩個應力帶：自重應力帶和卸荷應力帶，最大主應力方向在卸荷應力帶中近平行於坡面並傾向于河谷、在自重應力帶中近於直立；根據原始地面遭剝蝕的程度，可以大致地估算最大主應力和中間主應力的量值和方向；在丘陵區和平原區，最大主應力的方向近於水平，並與附近區域性侵蝕盆地和河流的展布方向基本平行，根據原始地面遭剝蝕的程度，可以大致估算其最大主應力的量值；根據區域性地貌形態的特徵來分析工程區的現今地應力場特徵，並進而大致了解巖石的應力環境，這種分析方法得出的結論與許多實際的地應力測試成果基本一致，對于大型水電工程地下廠房和壓力隧洞的設計是有所幫助的。( 6 ) conclusion was obtained by the analyzing the mechanics environment and the stability of the lanslide on the right bank after the dam built : the value of the rock mass stress increased and the tensile stress region obviously reduced, the direction of the principal stress was unchangeable the dam and the landslide were stable under the dangerous condition ( the reservoir and at the same time the earthquake was viii ), but when the water lever suddenly fell and did not think of other force, safe factor evidently reduced, the dam and the landslide will be destroyed under the most dangerous condition ( the water lever suddenly fell and at the same time the earthquake was vi ) ; the stability of the landslide will be destroyed by the horizontal thrust under the most dangerous condition or ; the physical and mechanical parameter will be reduced due to long period filter, the landslide will be destroyed too
（ 6 ）建壩工程荷載條件下河谷巖體力學環境分析及右岸古滑坡體的穩定問題分析得出：建壩后河谷的巖體應力量值明顯增高，同時左岸的張應力區的范圍及量值明顯減小，主應力的方向依然與模型的底邊界垂直；大壩建成后逐漸蓄水階段以及同時考慮本區最強地震力的作用等各種不同的工況條件時，滑坡體及壩體總體上仍處于穩定狀態；水位驟降時，在未考慮其他外力作用的情況時，滑體的安全系數將顯著降低。若考慮水位驟降及本區最大地震力的共同作用，壩體將在滑坡體下滑推力的作用下產生破壞；建壩后水平推力對右岸古滑坡體穩定性的影響分析可以看出，在最危險的工況條件下，壩體及滑坡體也將處于臨界狀態；在長期滲透變形的作用下，由於滑帶的物理力學參數的降低而有可能導致壩體失穩破壞。Through the analyse of expanding of the valley city space, we can elicit the conclusion that expanding of the valley city space has its own phases. and the phases maybe have three period of times, and each time the shape of the valley city is different, furthermore the course of the expanding of valley city space is corresponded to the development of social economy. the course have three phases
通過分析本文認為河谷城市空間拓展的規律性表現為:城市空間拓展與社會經濟發展的隨同性，即不同社會經濟階段河谷城市空間表現出不同的拓展速度與形態特徵;其次，河谷城市空間拓展表現出階段性和不同階段表現出不同的空間形態特徵，其總體來說可分為三個階段，從空間的緊湊團塊狀? ?線形的帶狀? ?帶狀組團式或組團式發展的階段性和形態特徵。On basis of the concrete character of the whole reservoir bank, the reconstruction of reservoir bank is valuated and forecasted by means of analogy method, which means to acquire the ultimately stable slope angel of zone being affected by reservoir water after reservoir storing water by analogy to the slopes " configuration parameters of the yangtze river before the reservoir storing water
針對庫區的具體情況，採用現代長江河谷岸坡形態參數類推水庫蓄水后相應水位作用帶的最終穩定坡角，對145m和175m兩種庫水位條件下的庫岸再造進行了預測和評價。預測和評價結果表明，再造強烈的庫岸段累計總長4 . 05km ，占整個庫岸總長（ 10 . 352km ）的39 . 1 。First part is to explain the definition of the valley city and the background of the field. second part is to probe into origin of the valley city
全文從河谷城市定義到空間拓展演化與動力因素探析，來分析河谷城市空間拓展的規律性和不同階段的空間形態特徵。We can also understand that the aspects of influencing the valley city space are many. but we can sum up them into two aspects. one is the social economy ( non - nature factors ), and another is the nature factors
河谷城市出現上述的空間拓展階段性和不同的空間形態特徵，是由於河谷城市空間拓展中不同階段，其作用於空間拓展中的影響因素有所不同或各個作用力大小有所差異，從而致使河谷城市空間在不同或不一樣大小的作用力下發展所致。分享友人