深挖土方 的英文怎麼說
中文拼音 [shēnwātǔfāng]
深挖土方
英文
deep cut-
The tendency of deformation of deep stratum was consistent with that of the shallow stratum, but the settlement of deep stratum over the tunnel was far larger than that of the shallow stratum
隧道開挖引起的地層深層與淺層變形趨勢是一致的,但在兩隧道軸線上方深層土體的沉降要遠比淺層土體大。Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed
本研究在廣泛總結前人研究成果與研究經驗的基礎上,利用空間數據挖掘和地形地貌學的基本理論,以陜北黃土高原多地貌類型區為實驗樣區,以1 10000比例尺dem為樣本數據,探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構;確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構;系統總結了dem基本地形因子的提取演算法,並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析;提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法;擴充了arcviewgis軟體平臺中dem空間分析的基本功能;實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發;完成了對黃土高原多地貌類型區(樣區)地形信息空間分異特徵的分析。Base on the practices, it was concluded that the " time - space effects " excavation method combining with the ground reinforcement could be employed to control the deflection in deep foundation pits under the top - down construction condition, and consequently to protect the neighboring facilities
在工程實踐的基礎上提出結合坑內土體加固採用時空效應法的開挖技術是逆作開挖條件下控制深基坑卸載變形,保護周邊環境和設施的有效方法。The instrument can easily and correctly location, depth of the underground pipes and the exact position of leak points on the insulating anticorrosive coating without digging ground
本儀器不挖開復土的情況下,方便而準確地查出地下管道的走向、深度和絕緣防腐層的漏蝕點的精確位置,使整個管道表面不再屢遭到處開搪破土之苦。Since the shallow depth excavation is the main factor to cause ground settlement in shenzhen subway tunnel, this paper discusses some corresponding countermeasures including the improvement of ground property, appropriate draining of groundwater, scheduled excavation depth and width, etc, to control strata distortion and surface settlement, and argues that these measures are expected to effectively control surface settlement while constructing city subway in soft ground excavation
摘要針對深圳地鐵淺埋暗挖隧道施工中影響地表下降及地層變形的因素,提出了遵循「十八字」原則、改善土體特性、適度排放地下水、根據地層條件選擇施工方法、增大左右線隧道開挖面的距離、合理確定開挖進尺、提高施工效率、加強初期支護、及時施作二次襯砌等對策。In the simulation and analysis on culvert construction, the method of foundation - pit excavation layer by layer and step by step was used, i. e. the method that makes the surface of excavation have no stress, when the elements were excavated gradually in period of construction. at this process, the state of soil is unloading, the laws of stress field and displacement field with the depth of excavation were studied. based on the obtained stress field and displacement field after the excavation was completed, by using of the newly increased filling - elements " gravity and the grinding force, the simulation of the construction of body of the culvert and foundation - pit ' s filling layer by layer had also been done in this dissertation
用有限元法模擬分析涵洞基坑開挖時,採用分層、分步模擬開挖過程的方法,即將計算域內單元分層「挖去」 ,使開挖表面成為無應力表面的方法,分析土體在卸載狀態時的應力場和位移場隨開挖深度的變化規律;在洞體施工后,回填土體時,據開挖完成時的應力場、位移場,通過逐級增加計算域內的單元數目,施加每級新增加單元的自重荷載,利用有限元法模擬基坑及上覆土體分層填築的施工過程,這不僅反映土體處于再加載應力狀態時,填土受力及變形的一般規律,而且這種將地基? ?涵洞? ?土體作為一個統一整體進行模擬的方法,量化了三者之間的相互作用關系。This paper also presents a quantitative method to evaluate this creep effect
本研究也提出一個可以評估深開挖土壤潛變效應的量化評估方法。In the paper, other research results are summarized, and a big test model indoor of row pile retaining and protecting deep foundation pit is designed. for homogeneous soil or samdwich soil structure three different retaining and protecting kinds : dense pile, thin pile and without pile are designed, using excavation simulation and loading on the top of slope, the model test is divided into two stages : foundation pit excavation simulation stage and destroy test stage. in this paper, for three different retaining and protecting kinds, the relation between soil pressure and displacement of piles, the relation between soil stress and strain, interaction of pile and soil and retaining and protecting loss - stability destroy are systemic studied
本文總結了前人研究成果,構築大型室內深基坑排樁支護試驗模型,在均質及層狀土層結構地基上,設計了密排樁、疏排樁及無支護三種不同支護型式,採用模擬開挖與坡頂均布加荷方式,進行了模擬基坑開挖和破壞性的兩個階段試驗,對三種不同支護型式的土壓力與樁位移、土體應力與變形、樁土共同作用及支護結構失穩破壞進行系統研究。It was shown that the maximum displacement occurred on the tunnel axis when one tunnel was excavated, while the maximum value happened near the shallow tunnel and between the area of two tunnels when two adjacent tunnels were excavated at the same time
分析結果表明:單條隧道開挖引起的地表最大沉降值出現在隧道軸線的正上方,而兩左右或上下相鄰隧道開挖的地表及土層內部的最大沉降值則出現在兩隧道的縱軸線之間,且偏向上方埋深較淺的隧道。By simulating the excavation course of foundation pits and starting with the change of stress field, the regularities of remanent strength and static earth pressure of viscous soil mass under excavated plane are analyzed so that the influence depth due to soil mass excavation unloading may be determined
摘要模擬基坑開挖過程,由應力場變化方面入手分析開挖面以下粘性土體殘余強度和靜止土壓力的規律性,以期確定土體開挖卸荷的影響深度。By face failure and ground subsidence investigation and in - suit monitoring analysis in some lots of shenzhen metro phase line, especially of lot 3a in which two large ground landlides have occurred in construction, the reasons of ground subsidence are expatiated respectively from three aspects, including the characters of the physical mechanical parameters of stratum above tunnel, the monitoring analysis of stratum deformation and contruction technics causation
通過對深圳地鐵期工程土建施工中全線部分暗挖標段出現的工作面失穩、地表塌陷工程實踐和現場監測結果分析,特別著重對連續2次出現地表塌陷的3a標暗挖隧道研究,從隧道上覆地層物理力學性質參數、地層變形監測分析及施工工藝原因3方面闡述了地表塌陷的原因。In this paper, author compare with shenzhen holiday plaza project ( be known as firstly deepest foundation pit, deepest excavation depth is 21m ), use combinative method for theory guidance, test study, simulation analysis, project application and information feedback, entirely and deeply study prestress anchor cable composite soil nail, and also make a pilot study for deformation of pile anchor composite soil nail
本文以深圳假日廣場深基坑支護工程(號稱「深圳第一坑」 ,最深開挖21m )為背景,採用了理論指導、試驗研究、模擬分析、工程應用和信息反饋相結合的方法,對預應力錨索復合土釘支護結構進行了全面深入的研究,對樁錨式復合土釘支護結構的變形進行了初步研究。This manner of change reflected the great influence of texture to rock mass quality. rock mass mechanical parameters corresponding to individual rock mass quality at different levels are determined by means of correlation analysis and statistical analysis. results show that calculation outcomes match well with measured mechanical parameters
研究結果表明:對于混凝土重力壩,按照現在的深開挖方案,壩肩開挖后,土石方開挖量高達820x10 『 m 『 ,且在72dri高程至坡頂將產生大范圍的破壞區,採用工程治理將帶來巨額的費用。The proposed method also can be applied to some other geotechnical engineering, such as excavation and supporting of deep pit, foundation treatment, wide area excavation, ground water treatment and so on
這一方法也可用於深基坑開挖與支護、地基處理、大面積開挖和地下水防治等巖土工程。Through the comparison among the existing support methods, the deep foundation support method by use of brick retaining walls was introduced
摘要通過對現行支護方法的比較,結合工程實例,詳細介紹磚拱擋土墻在己有建築物側邊開挖深基坑的支護方法。In this paper, 8 - node isoparametric quadrilateral element is used to divide the soil and retaining structure. comparing to practical engineering, the numerical method - finite element method is used to analyze every behavior of deep foundation excavating and retaining in loess area
本文採用八結點四邊形等參元來離散土體與圍護結構,用有限元數值方法,對照實際工程,對黃土地區深基坑開挖與支護體系的各種性狀進行了分析。He has contributed significantly towards experimental research in a wide range of practical problems including slope stability, reinforced fill, retaining walls and excavation support systems, submarine pipelines, piling and ground treatment processes. his contributions in retaining walls and reinforced soils earned him the sir benjamin baker silver medal awarded by the uk institution of civil engineers
他對實驗研究作出極大的貢獻,研究課題實用性高而且廣泛,包括邊坡穩定、加固填土、護土墻和深基開挖支撐系統、海底管道、樁基礎和地基處理。在護土墻及加固填土方面的研究使他贏得英國土木工程師學會的sirbenjaminbakersilvermedal 。In this paper, the present status of development on the deep foundation pit conserved by frozen wall and coupled problems are analyzed thoroughly. the governing differential equations are obtained based on thermodynamics, while the finite element formulae is achieved by the galerkin ' s method
本文在對凍土墻圍護深基坑開挖凍結溫度場和應力場耦合分析研究現狀的基礎上,以熱力學為基礎,推導了凍土墻溫度場控制微分方程,並利用伽遼金方法推導了凍土墻凍結溫度場和應力場耦合計算的有限元計算格式。It assembled the world ' s largest fleet of dredgers, which sucked up 150m cubic meteres of clay and mud and dumped it in deeper waters and piled on top of the layer of stiff clay that the massive dredging had laid bare
它組成世界上最大的挖泥艦隊,吸收150立方米的泥土和軟泥堆積到深水裡,堆在最上面一層的是硬泥土,大型的挖泥被工作裸露的鋪設。Abstract : in this paper the mathematical model for shape optimization of arch dam subject to crack - depth constraint is estabilshed and the super finite element method ( sfem ) for arch dam cracking analysis is used as the re - analysis method. the research findings on xiaowen arch dam show that the shape optimization of arch dam subject to crack - depth constraint may further help reduce the volume of dam
文摘:本文引進裂縫深度約束條件,研究了拱壩開裂條件下的體形優化設計問題.結構分析採用超級有限單元法,既能有效控制計算規模又能方便地反映結構開裂的局部特性.對小灣拱壩和溪洛渡拱壩進行的優化設計研究表明,在優化過程中允許開裂並考慮開裂約束條件,可以更好地挖掘拱壩潛力,進一步減小壩體混凝土方量分享友人