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。
Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三
角洲沖淤演變時,從1976年黃河改道清水溝流路入海到2000年,整個黃洞三
角洲凈造陸201 . 5km ~ 2 ,淤積有逐漸變慢的趨勢,甚至出現凈蝕退的年份;刁口河嘴大量蝕退,蝕退速率開始快速,后來逐漸變慢;清水溝河嘴大量淤積,淤積速率開始迅速,后來逐漸變慢,甚至出現凈蝕退;清水溝河嘴
南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。
Solar azimuth sum s azimuth
太陽光線的水平投影與正
南方向的夾
角
In his 46th report, blackwell said that olsen, 19, who with her twin, ashley olsen, heads a multimillion - dollar entertainment empire appealing to young girls, looked " depressingly decayed " in her " bag lady rags. " he called simpson, 25, a " cut - rate rapunzel slingin " hash in a vegas diner " and said lohan, 19, was " drowning in grown - up groaners " that added 30 years to her looks. blackwell said hotel heiress hilton looks " like yesterday ' s cheesecake, " criticised " desperate housewives " television star eva longoria for " garish taste " and described oscar winner renee zellweger as looking like a " painted pumpkin on a pogo stick.
布萊克韋爾指出,現年19歲的好萊塢小富姐雙胞胎女星之一的瑪麗凱特奧爾森邋遢落魄的著裝讓她看起來像個壓抑的乞丐傑西卡辛普森「愛穿二流貨」 25歲的美國新一代小天後林賽羅翰老氣橫秋的打扮讓她足足長了30多歲希爾頓酒店繼承人帕麗斯就像是「昨天的酪餅,不新鮮」絕望主婦的女主
角伊娃隆格里亞「過分招搖,品味俗氣」奧斯卡得主芮妮齊薇格如同「一隻被塗抹了的
南瓜」 。
Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從
南方紅豆杉種群生態學的
角度、主要應用數學生態學的方法探討
南方紅豆杉種群的數量特徵,包括
南方紅豆杉種群年齡結構、種群空間格局(探討分佈格局動態規律與生境相互關系) 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等,分析其目前現狀及瀕危原因,期望為
南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎,也為瀕危植物種群生態學的研究提供參考。
The incident happened at beachy head - a spot on england ' s south coast notorious for suicides
這起事件發生在英國的比奇
角-英格蘭
南部海岸著名的"自殺勝地" 。
In a close fight, the runner - up was " rhino horn stockpile management : minimum standards and best practices from east and southern africa. " previous winners have been " bombproof your horse " and " greek rural postmen and their cancellation numbers.
在2006年度英國「最古怪書名」評選中,牛
角積蓄管理:從東方至
南非的最低標準和最佳實踐在激烈的競爭中最後屈居亞軍位置。
It looks like an equilateral triangle. the three bright stars are procyon in canis minor, sirius in canis major and betelgeux in orion
它的形狀接近等邊三
角形,由小犬座主星
南河三大犬座主星天狼星及獵戶座主星參宿四所組成。
27 i feel as if i had wakened from a nightmare 惡 夢. wild horses could not drag me down to cape horn and that sinister southern ocean again
我覺得好像剛從惡夢中醒來。就是野馬也休想再把我拖回到合恩
角和那兇險莫測的
南大洋去了。
The silver tower, southeast of the sanyuan cloverleaf, is a good example of this approach
南銀大廈,位於苜蓿葉形三元橋的東
南角,就是這一方式的優秀範例。
Hostor will cooperation with the more than twenty associations of paper 、 printing 、 packing in nine provinces of “ 9 + 2 ” districts of coastwise, eighty famous medias will unite to announce the information to everywhere of china and every end users
主辦單位將會同泛珠三
角「 9 + 2 」區域的華
南9省及港澳地區20多家紙業、印刷、包裝協會, 80多家專業主力媒體,整合各種傳媒資源,形成宣傳合力,展開全方位的立體宣傳,使本屆展覽會各種信息傳播到紙業、印刷、包裝和相關領域的每一個
角落,傳播給每一個最終的專業目標用戶。
Dongjing hotel kaifeng is a three - star garden hotel located in the southwest of kaifeng, south extend to the ancient city wall and north to the bao s lake. hotel is of the guest room building and other related buildings made up by three chinese greco - roman style tiles with national architectural style
開封東京大飯店座落在開封古城西
南角,
南依蜿延伸展的古城墻,北臨碧波浩渺的包公湖,是一座園林式三星級飯店。東京大飯店建築面積二萬四千平方米,由三座具有民族建築風格的中國古典式瓦頂客房樓和其他配套建築組成。
Tung chung ( yat tung ), tung chung ( north ), tsing ma, container terminal area, mei foo, cheung sha wan, sham shui po, prince edward mong kok north kcr mong kok station, mong kok south mtr mong kok station, tai kok tsui
東涌(逸東) ,東涌(北) ,青馬,貨櫃碼頭區,美孚,長沙灣,深水? ,太子旺
角(北)東鐵旺
角車站,旺
角(
南)地鐵旺
角站,大
角咀
Airport passenger terminal, airport supporting area, tung chung ( citygate fu tung ), tsing ma, tsing yi ( cheung hang ching wah court ), container terminal area, mei foo, cheung sha wan, sham shui po, prince edward mong kok north kcr mong kok station, mong kok south mtr mong kok station, yau ma tei, jordan, tsim sha tsui star ferry
機場客運大樓,機場後勤區,東涌(東薈城富東) ,青馬,青衣(長亨青華苑) ,貨櫃碼頭區,美孚,長沙灣,深水? ,太子旺
角(北)東鐵旺
角車站,旺
角(
南)地鐵旺
角站,油麻地,佐敦,尖沙咀天星碼頭
Airport authority office, chek lap kok south road
機管局辦事處,赤?
角南路
Only found in chep lap kok, lamma, lantau and po toi
角南丫島大嶼山及蒲苔島。
Airport passenger terminal, airport supporting area, tung chung ( citygate fu tung ), tung chung ( yat tung ), tung chung ( north ), tsing ma, tsing yi ( cheung hang ching wah court ), container terminal area, mei foo, cheung sha wan, sham shui po, prince edward mong kok north kcr mong kok station, mong kok south mtr mong kok station, yau ma tei, jordan, tsim sha tsui star ferry
機場客運大樓,機場後勤區,東涌(東薈城富東) ,東涌(逸東) ,東涌(北) ,青馬,青衣(長亨青華苑) ,貨櫃碼頭區,美孚,長沙灣,深水? ,太子旺
角(北)東鐵旺
角車站,旺
角(
南)地鐵旺
角站,油麻地,佐敦,尖沙咀天星碼頭
Airport passenger terminal, airport supporting area, tung chung ( citygate fu tung ), tsing ma, tsing yi ( cheung hang ching wah court ), container terminal area, mei foo, cheung sha wan, sham shui po, prince edward mong kok north kcr mong kok station, mong kok south mtr mong kok station, tai kok tsui
機場客運大樓,機場後勤區,東涌(東薈城富東) ,青馬,青衣(長亨青華苑) ,貨櫃碼頭區,美孚,長沙灣,深水? ,太子旺
角(北)東鐵旺
角車站,旺
角(
南)地鐵旺
角站,大
角咀
Nam chung, sha tau kok
沙頭角南涌