河谷地形 的英文怎麼說
中文拼音 [hégǔdexíng]
河谷地形
英文
valley form-
In places, hill - slope debris forms a mantle over the bedrock and alluvium fills some of the valleys
在部分地方,基巖表面由巖石碎屑堆積形成覆蓋層,而部分河谷則有沖積層。In the research area, the incised valley was formed during the sea level downwards and was provided source by the arenaceous river from qiaotou. it is stacked by 3 incised valleys formed in 3 different sequences
研究區內子洲鎮川堡地區發育的下切河谷形成於海平面下降時期,來源於橋頭的砂質河流沉積,為疊置的、形成於三個不同三級層序底部的下切河谷充填沉積。It is a rather well - known fact that bank - slope deformation and failure result from the coupling of earth ' s endogenic and exogenic geological processes, in which different dynamic - force factor has a different correlation to the evolution of bank - slope
摘要河谷岸坡的變形與破壞是地球內外動力耦合作用的結果,並且每一種動力地質作用對于岸坡變形失穩的貢獻程度不同,造成岸坡變形破壞頻率和規模的空間差異。To accommodate the regiments of miners, carston, waite and co. built the squares, great quadrangles of dwellings on the hillside of bestwood, and then, in the brook valley, on the site of hell row, they erected the bottoms.
卡遜一魏特公司為了安置大批礦工,蓋起了好幾個居民區,在貝斯伍德山腳下形成了一個個大四方院,后來又在小河谷地獄街的廢墟上,建立了陸地區。The mechanical genesis of the complicated rock mass is because several times of tectonism in pro - period made the structure of rock mass in the right dam foundation damaged seriously and rock mass alteration made its mechanical character more anisotropy. after that the fractures in the right dam foundation slope were stretched at the beginning of the quaternary period because in the period yakouhoushan mountain quaquaversal dome was blowups quickly. at the same time, the valley trenching of lancang river reach to 800 - 1000 meter in altitude at the right bank in nuozadu dam site
導致右岸巖體復雜化的成因是,右岸巖體在早期遭受了多期構造作用和巖體蝕變的基礎上,第四紀早期丫口後山穹隆的快速隆起與當時河谷下切至800m 1000m高程這一特殊因素組合引起了右岸巖體沿原有的斷裂(裂隙)張開,使地下水等風化營力能夠到達坡體較深部位,經過長期的風化卸荷作用,形成了右岸復雜巖體。In wulai itself, tourists can board the wulai cable car, the highest of its kind in taiwan, for a ride over the 80 - meter vertical drop of wulai falls, a sacred site formerly venerated by the atayal
境內盡是一千公尺以上的高山,而與山路一路相伴蜿蜒的南勢溪,屬于幼年期的河谷地形,險峻陡峭的峽谷斷崖及瀑布,開人胸襟。The inner factors refer to the mechanical behavior such as the rock type, density, construction parameter, etc. and the outer factors refer to the foundation condition, geological condition, valley shape, rise and fall of water level, seepage due to respiration
內因是指堆石料的巖質巖性、密實程度、施工參數等組成壩體的各種力學性質;外因是壩址所處的基礎條件和兩岸的地形地質等條件、河谷形狀、水庫水位的變化、降雨浸潤等因素。The fall of global sea level during the last glacial maximum enhanced the fluvial gradient and river cutting, resulting in the formation of the large - scale qiantangjiang river and taihu incised valleys which were subsequently filled and rapidly buried in the post - glacial period, with the paleointerfluve being exposed to air on both flanks of the incised valleys
末次冰盛期,海平面下降的幅度大,增加了河流梯度、加強了下切作用,形成了錢塘江和太湖下切河谷,隨后在冰後期被充填和埋藏,下切河谷的兩側為暴露地表的古河間地。All these characters form unique river - valley landforms of the three parallel rivers
形成了獨具特色的「三江併流」河谷地貌。Jinsha river, nu river, lancang river and dulong river flush from the north to the south and form the relatively typical river - valley landforms which gives priority to the valleys
金沙江、怒江、瀾滄江、獨龍江自北向南奔流,形成了較為典型的以峽谷為主的河谷地貌。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。Central california is a long valley formed by two rivers.
加利福尼亞中部是由兩條河形成的一個很長的谷地。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。This theme selected weihe river round tianshui, jinhe river round binxian, bahe river round lantian and luohe river round luochuan to study the evolutionary model of river terraces in the mid - tail of weihe river. we have built the cross - section of each river, and analyzed the evolution of each river terrace in the mid - tail of weihe river according to the velocity of downcuting and lateral erosion
本論文以天水渭南鎮段渭河、彬縣段涇河、藍田段灞河和秦家河段洛河為例建立渭河中下遊河流階地演化模式,以階地形成年代為標尺,根據下切速度和側蝕速度對渭河中下游各河谷階地的演化過程進行了分析。There are two greater value centers : one is the valley region in northeast of the plateau, the other is the north of sichuan province
外流河谷地區兩側山脈的年降雨量較大,年均大到暴雨日數較多,河源處相對較小,具有河谷地形的特點。It is found that the mesoscale mountain has significant influence on the location and intensity of the heavy rain area, and the bell - mouthed area and the riverway area of xichang are favorable to the occurrence and development of mesoscale disturbance and heavy rain
地形梯度分析表明,西昌地區所處的河谷地形和場區所處喇叭口小地形,有利於中小尺度氣壓擾動的發生、發展和暴雨的產生,當地形梯度減弱時,降水量相應減弱。The weather analysis and climatic characteristics of the heavy - hard rainfall in this area, structure characteristics during the rainstorm, the mechanism and structure of mesoscale systems bringing rainstorm and etc. are studied by conducting diagnostic analysis, theory of dynamics and numerical simulation. the influence on the rainstorm causing by mesosc ale topography piling on the plateau, the particular valley topography in northeast plateau and complex surface vegetation are researched by numerical experiments
本論文試圖採用診斷方法、診斷和天氣動力學理論相結合的方法、數值模擬等方法對高原地區大到暴雨的天氣、氣候特徵,暴雨產生時的物理量場特徵、產生暴雨的中尺度系統的發生機理和結構特徵等方面進行研究,對疊加在高原上的中尺度地形、高原東北部特殊的外流河谷地形及復雜下墊面性質對暴雨的可能影響進行數值試驗,以揭示高原暴雨發生發展的物理機制。The initial people pick up beautiful and d the jade in the riverside, later again will arrive in the rivers fishes for the egg circular the sub - jade, again afterwards dug out these early rivers chongjiwu center from the river valley step gravel the beautiful jade ; again along the river traced subsequently discovers the growth bound primary in the rock yukuang
最初人們在河邊拾起美麗的和闐玉,以後又到河流中撈取卵圓形的子玉,再后來從河谷的階地砂礫中挖出那些早期河流沖積物中的美玉再沿河追溯繼而發現了生長在巖石裹的原生玉礦。Detailed diagnoses is made on a heavy - hard rain in the northeast qinghai - xizang plateau using ncep data of 1 x 1 with 6h intervals, more complete and integrated conventional observational data and the data set of automatic meteorological stations in plateau and new generation doppler radar data and satellite images and etc. the following conclusions can be drawn : 1. the distribution of heavy - hard rain, which is characteristics of valley topography in northeast qinghai - xizang plateau is obviously effected by topography. the distribution of yearly mean precipitation and the frequencies of heavy - hard rain in this area are descending from east to west
本文首先利用ncep時間間隔為6小時的1 1的格點資料、更全面、更為完整的常規探測資料和高原地區布設的自動氣象站資料、新一代多卜勒天氣雷達資料、衛星雲圖資料等對高原東北部地區大到暴雨的天氣、氣候特徵及大尺度環流背景進行分析,形成對高原暴雨的整體認識,並為以後的數值模擬提供大尺度環流背景及依據,分析中發現: 1 、高原東北部地區大到暴雨的分佈明顯受到地形影響,年降水量和大到暴雨次數自東向西呈階梯性遞減趨勢,分別在高原東北部的外流河谷地區和四川北部地區存在大值中心。分享友人