Relating closely to the main problem of the high sidewall and wide span underground cavities excavation stability of xiluodu hydroelectric project, the evolution characters of geo - stress field in deep - cutting gorge and the whole features of the stress field, strain field and plastic failure zone around the underground chambers after excavation are studied systematically in the dissertation, based on a great deal of data gathered in field investigation and taking the flac3d v2. 0 software as basic computation tools. meanwhile, in the course of research, the new methods of dynamic numerical simulation are summarized and applied. furthermore, the effects of rock mass qualities, initial geo - stress field and excavation procedure on surrounding rock mass stability are discussed
本文緊密結合溪洛渡水電工程大跨度、高邊墻復雜地下廠房洞
室群,施工開挖過程中和開挖后圍巖穩定性研究這一重大課題,在詳盡的野外地質調查工作和對大量基礎地質資料的整理與分析基礎上,以目前國際工程地質界公認的最新通用軟體flac ~ ( 3d ) 2 . 0版作為基本計算工具,從整個壩區地應力場的研究開始,通過動態數值模擬分析這一新的模擬思路,系統地研究了深切峽
谷區地應力場多階段的特徵和演變規律,進而對左、右岸地下廠房洞
室群開挖全過程中圍巖應力場、變形場和塑性破壞區的變化特徵,進行了全過程動態數值模擬研究,並詳細討論了圍巖質量、初始地應力場、施工開挖順序對大型地下洞
室群圍巖穩定性的影響。
So it is chiefly that soil co2 concentration and its influencing factors should be studied in ordered to learn the mechanism of epikarst ecosystem and global carbon cycle. karst dynamics laboratory, ministry of land and resources, has been studied the mechanism of seven typical epikarst ecosystem and global changes through igcp 299 ( geology, climate, hydrology and karst formation, 1990 - 1994 ) and igcp 379 ( karst processes and the carbon cycle, 1995 - 1999 ) to igcp 448 ( world correlation of karst ecosystem, 2000 - 2004 ), while observation and analysis and research of epikarst ecosystem in mt. jinfo have just been beginning. the thesis analyzes that based - on observational point of green pond and deep dell in the west slope of jinfo mountain, co2 concentration and regularity of epikarst ecosystem contrasting woodland with uncovered land have been studied through the observation of temperature and humidity and co2 concentration
國土資源部巖溶動力學開放研究實驗
室以igcp229 、 igcp379和igcp448項目為依託,開展了我國7個典型的表層帶巖溶生態系統運行規律及其全球變化影響研究,而其中金佛山的觀測、分析與研究則才剛剛起步,本文以金佛山西坡摘公碧潭幽
谷為觀測點,主要通過coz濃度、溫度和濕度的觀測,開展林地表層帶巖溶生態系統與裸地表層帶巖溶生態系統coz濃度特徵及其變化規律的對比研究,這對進一步深入研究巖溶生態系統運行機制和全球碳循環以及開展全球巖溶生態對比有著重要意義。
That forest - dell, where lowood lay, was the cradle of fog and fog - bred pestilence ; which, quickening with the quickening spring, crept into the orphan asylum, breathed typhus through its crowded schoolroom and dormitory, and, ere may arrived, transformed the seminary into an hospital
羅沃德所在的林間山
谷,是大霧的搖籃,是霧氣誘發的病疫的滋生地。時疫隨著春天急速的步伐,加速潛入孤兒院,把斑疹傷寒傳進了它擁擠的教
室和寢
室,五月未到,就己把整所學校變成了醫院。
Through discussion of numerical solution, the author get the effect of height of filled soil, size of culvert, width of valley, property of filled soil, construction procedure and techniques on soil stress of the culvert top ; 3. through the centrifuge test, the paper validates the reliability of numerical calculating on high - stack soil ; 4. the paper puts forward the simplified calculating method of soil stress of the culvert top on the foundation of numerical simulating and centrifuge modeling
通過對數值解的討論,得到填土高度,涵洞截面尺寸,溝
谷底部寬度,溝壁坡角,填築體性狀,施工速度,地下水對豎向位移場及涵洞頂部土壓力的影響情況; 3通過離心機的模擬試驗,驗證了數值計算對高路堤的計算結果的可靠性; 4在數值模擬和
室內離心機模型試驗的基礎上,提出了高填方涵洞頂部土壓力簡化計算方法。
A wide and open outdoor section stretches just outside the indoor section, recreating the atmosphere surrounded by mountains and valleys. it s also designed to entertain visitors with a easy " lukewarm bath, " edokko ( native tokyoite ) s favorite " hot bath, " a woody scented " barrel bath " and so on
在
室內浴
室的外面是再現深山幽
谷風景的廣闊露天浴場。有可以悠閑享受的"溫水浴" ,有老江戶人喜歡的"熱水浴" ,還有帶木香的"樽風浴"等,這里還建造了富於情趣的浴
室。
Address : 1 612, huigu building, 33 leshan road, xuhui district, shanghai 200030, p. r. china
公司地址:上海市樂山路33號慧
谷1號樓612
室電話傳真
Just as financial institutions grew tobecome repositories of people ' s money, and thus guardians o fprivate information about their finances, google is now turning into acustodian of afar wider and more intimate range of information about individuals
恰如金融機構逐漸成長為民眾的儲藏
室,並因而成為他們私人經濟狀況信息的保管人一樣,
谷歌公司正在成為更廣泛、更私密范圍內個人信息的保管人。
Described and reported by the gia laboratory as a range from the thinnest to the thickest " valley " areas ( i. e., " thin places " located between the bezel - main intersection and where the upper and lower halves meet )
描述和報道的gia的實驗
室作為距離最薄的厚度為"
谷"地區(即"薄地"地處面板主要路口,而上,下半滿足)
Buildings and structures for agriculture - code of practice for design and construction of bins and silos for combinable crops
農用建築物和構築物.第74部分:多種作物產品貯藏
室和
谷倉設計和施工慣例
Abstract : the authors discuss roundly source of loose earth fo r impact - deposit debris flow to develop taking pingchuan debris flow, one of the quite typical impact - deposit debris flows in southwest sichuan province , as an example in this paper. on the basis of detailed investigations in - situ, geotechn ial testing in lab and theory analysis, all results indicate obviously that moder ate and bulky loose earth in giant debris flow situating in southwest sichuan mo untainous area are main institute, whose tribulation are consistent with landform s. loose earth locating in mid - forepart catchment are quite unstable, so often be comes main source of loose earth of debris flow. formation of loose earth is cont rolled principally by geologic and geotechnical environment while human actions is the secondary factor for loose earth to form. in many times, human actions prov ide loose earth through loose earth stability
文摘:本文以極具典型的平川泥石流為例比較全面的分析了沖淤變動型泥石流的物源問題.根據現場調研及
室內巖土分析進行的研究成果顯示,川西南高山深
谷地區的大型泥石流溝中的鬆散土體以中、粗粒段為主,其分佈與地形密切相關;位於泥石流溝中、前部位的鬆散土體的穩定性最差,是補給泥石流的重要物源;鬆散土體的發育主要受控于地質及巖土環境,人類活動只能影響鬆散土體的穩定性
As they traveled, the initiates saw a vast landscape of valleys, hills and mountains colored black and gray, the legacy of the awesome flames. at the high school, the evacuated families were housed in the gymnasium
疏散至山
谷中心高中的災民,暫時被安置在體育館里,在救災人員及志工的協助下,同修很快地將捐贈的物品搬到儲存
室。
To improve the efficiency of heat transfer, the system adopts direct contact heat exchange
利用低谷電能加熱蓄熱室的蓄熱體,需要時利用蓄熱體的熱能加熱水來產生蒸汽。