挖方坡度 的英文怎麼說
中文拼音 [wāfāngpōdù]
挖方坡度
英文
excavation slope-
By direct shear for and normal triaxial shear tests of non - saturated desert sand, the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand, and set up the code of this sand. based on the plane strain test of non - saturated desert sand slope, the paper analysed the destruction way of the excavaion side during the construction by means of adding water, and brough forward a formule that calculates the allowable of excavation and pile hole
通過非飽和沙漠砂直剪試驗和常規三軸剪切試驗,研究了含水量和干密度對非飽和砂強度的影響,建立了這種砂的強度準則。通過非飽和沙漠砂邊坡室內平面應變試驗,分析了沙漠井場浸法施工中就基坑壁的破壞方式,推導出了基坑和樁孔容許開挖深度的計算公式。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。At last, the finite element method, the strength reduction method and limit equilibrium method, nature slopes and excavation slopes, lateral stress unloading model and axial loading model are analyzed and discussed relatively
最後,就有限元法、強度折減法和極限平衡法,自然邊坡與挖方邊坡,圍壓卸荷應力路徑模型分析與軸向加荷應力路徑模型分析進行了比較討論。He ever told me a most simply way for building up a stove for using soft coal ; he also said, so as give him a shovel, and did not need nothing else, he could dig a stove on a slope, the stove would be big fire and saving firewood, the key was in wind path, depth, and smoking path
他曾教給我一個最簡便的砌煙灶的方法;他還說,只要給他一把鐵鍬,其餘什麼也不用,他在坡地上就能挖出一個火又旺柴又省的爐灶:學問不過在進風口、深度和煙道上。The study results reveal some laws : ( 1 ) two failure modes exist in different obliquity slope and influence the internal force of soil nailing ; ( 2 ) the connection between face shield and soil nailing determines the distribution of the axial force along length ; ( 3 ) the influence of face shield involves its connection with soil nailing and its stiffness on soil nailing wall ; ( 4 ) the transversal effect of soil nailing depended on the joint of nail head is little ; ( 5 ) the maximum axial forces of other soil nailings except the first soil nailing increase gradually with excavation
研究表明: ( 1 )素土坡隨著坡角的變化,存在兩種破壞方式,破壞方式不同,土釘受力狀態不同; ( 2 )土釘和面層的連接方式決定著土釘長度方向上的軸力分佈形態; ( 3 )面層主要通過面層與土釘的連接和面層的本身剛度兩個方面對土釘內力和墻體變形產生影響; ( 4 )土釘橫向抗剪抗彎作用的發揮程度和土釘釘頭的連接方式有關,但作用不大,實際設計時可以忽略其影響; ( 5 )隨著坡體的開挖,第一排土釘的最大軸力變化不大,其它土釘的軸力都穩步增加。With synthesize slope ratio increasing, the stability of cutting slopes decreases, but the stability of sharpen slope affected by natural slopes ratio changes rarely, the stability of cutting slope that height is 30m is change notably due to slope type, whose single slope ratio with madao is inferior to the slope that upper ratio is less than lower ratio with platform in middle part. but the stability of cutting slope with 50m height is little change with the slope type change. with same stratum, slope height, slope type, the cutting slope is inferior to the sharpen slope in stability
結果表明,地層含水量在12 . 0 18 . 0變化范圍內,各種挖方邊坡穩定性均隨濕度的增大而顯著降低;路塹邊坡的穩定性隨綜合坡比的增大而降低,但削坡受自然坡比影響,隨綜合坡比的增大其穩定性基本不變;坡高30m的路塹邊坡穩定性因坡型改變而有明顯變化,且單一坡比多級馬道型邊坡的穩定性較上緩下陡平臺型邊坡的穩定性差,但坡高50m的路塹邊坡穩定性因坡型變化而基本不變;當坡高、坡型、地層條件相同時,路塹邊坡的穩定性較削坡的穩定性差。Based on the engineering practice of the side slope excavation of dayanchi section within the road for the construction traffic of guandi hydropower station, the problems such as the selection of blasthole distance for presplit blasting, and the rock ridge, the levelness of the presplit face, lower hole - making rate of the auxiliary blastholes after the presplit blasting, the blasting network for prespliting and blasting zone and the angle change of the presplit hole etc. are analyzed ; for which the specific solutions are put forward herein as well
摘要通過官地水電站對外交通公路大鹽池合同段邊坡開挖中預裂爆破的工程實踐,對預裂爆破的孔距選擇及下部嚴重出現巖坎、預裂面平整度、預裂爆破后輔助孔成孔率低、預裂與爆破區爆破網路以及預裂孔角度變化等問題進行分析,提出了具體的解決方法。Under the consideration of the engineering geological condition of dahuashui hydropower station, the pre - splitting blasting technology and reasonable construction method are adopted for the excavation of the dam foundation in accordance with the analysis on the rock strata therein, in which the design of the blasting parameters and powder charging structure as well as the angle control and the height of the excavating steps are particularly determined, and then better splitting effect is got for the slope excavation and the quality requirement of the construction is satisfied as well
摘要結合大花水水電站大壩工程地質條件,通過分析巖層具體情況,採用預裂爆破施工技術,合理施工方法進行壩基開挖,並對爆破參數和裝藥結構的設計,鉆孔的角度控制和梯段高度精心確定,使該邊坡開挖預裂取得良好的效果,保證了壩基開挖的質量要求。And the conclusion can be obtained thatrafter excavation, the horizontal deformation increased continuedly with the depth of excavation. while the whole deformation takes on a tendency of nearly horizon and slightly downward. the middle part of the shiplocks maintains the state of unloading feedback during the excavation, when the excavation is finished, it expands toward two sides
本文研究發現開挖完成後閘室直立墻和南北邊坡的巖體水平方向變形隨著開挖深度的下降而不斷增大,開挖完成後的總體變形表現為近水平略向下。中隔墩在開挖過程中,始終處于卸荷回彈,開挖完成後,中隔墩向兩側張開。The stability of the landslide is a critical problem for feasibility of the project, and has a direct influence upon the operation of the lower reservoir and the power system. the sliding mass has been studied by some designer in geological investigation. the study showed that guishan sliding mass is in stabilization under natural condition, is not in stabilization under vii earthquake intensity
在前期的研究中曾對滑坡體的穩定問題進行了研究,研究結果認為從宏觀定性分析,滑體處于穩定狀態,但經過計算,在度地震烈度下,處于極限平衡或不穩定狀態,為確保工程安全,對推動式的龜山滑坡體採取削坡減載的開挖方式將是行之有效的方案,這樣可以提高滑坡體在地震條件下的穩定性,因此,研究龜山滑坡體在不同開挖方式方案條件下的穩定性問題具有非常重要的實際意義。With the help of this program, this paper does research on the moved backwards of the slide surface, lengthening the anchor section, the soil nail ' s total force, gets conclusion about relations between the soil nail ' s length and the slope ' s grade, height, soil ' s mechanical parameter ; relations between soil nail ' s total force and coulomb soil pressure. with the help of the large multiuse finite element program ansys, this paper analyzes the soil nailing in one - step ' s slopes, in two - steps " slopes, puts the emphasis on the axis force ' s distributing along the soil nail at each rows, the effect of both the excavating mode and the original slope figure to the axis force of the soil nail, the one another effect between the upper - step slope and the nether - step slope in the soil nail ' s axis force, gets conclusion about the design of soil nail at the first low, different slope body is the same with different excavating mode, the original slope figure has more effect to some than others because of the slope body, the reasonably design of the step width in two - steps slopes, the two - steps excavating and retaining has more virtue than the one - step ' s. through soil pressure analysis this paper does research on the differences and the links between the coulomb soil pressure theory and the rankin ' s, the vertical pressure at the slope surface when the slope surface is inclined and the retaining wall is rough, the soil pressure ' s distributing behind the panel, gets conclusion about the effect of both the slope body inner stability and the slope surface local stability to the soil pressure
通過分析比較,論證了對數螺旋線型比圓弧形作為邊坡的假設滑裂面具有較多的工程優點,並為此編制了一個採用極限平衡法分析土釘支護的fortran語言程序,以此作工具對滑裂面的后移、土釘錨固段的超長、土釘總力的大小等方面作了研究,得出了有關土釘的長度與邊坡的坡角、坡高、土體力學參數的關系、土釘總力與庫侖土壓力間的關系等結論;採用大型通用有限元數值分析程序ansys分別對採用土釘支護的一階邊坡、二階邊坡進行分析,重點是研究各排土釘的軸力分佈規律、開挖方式及原始邊坡形態對土釘的軸力的影響、上下階邊坡在土釘軸力方面的相互作用,得出了有關第一排土釘的設計問題、不同類型的土體應適用於特定的開挖方式、原始開挖出的邊坡形態對一些類型坡體的邊坡土釘支護有較大的影響而對另外一些影響不大、二階邊坡臺階寬度的合理確定、二階開挖及支護比一階時具有較多的工程優點等結論;通過土壓力分析對朗肯、庫侖兩種經典土壓力理論的區別與聯系、坡面傾斜及墻背有摩擦時的坡面豎向應力分佈、面板背土壓力的分佈形態作了研究,得出了邊坡支擋土壓力受坡體內部穩定與坡面局部穩定兩個方面的影響、土釘支護面板背土體中卸荷拱的存在對面板受力有利等結論。This thesis, according to limestone environmental characteristic and characteristic of construction of highway of mountain area of limestone, sets out in excavating from the road bed of the angle of environmental protection, according to trying not to excavate, how to reduce to excavate, how to reduce and excavate the impact on surrounding environment of the course, how to go on the expressway view and ecological environment and how to carry on environmental quality resume, we employ theories such as engineering of traffic, rock soil engineering, traffic psychology, traffic aesthetics, operations research, etc. we have excavated environmental protection theory and method and carried on research to the mountain area expressway road bed of limestone systematically, propose the road bed to excavate and optimize, slope protect, discard cubic meter of earth and stone deal with, natural river system recuperate recovery, view environmental recovery, environmental quality resume theory system of appraising etc.
本論文依據石灰巖山區環境特徵和石灰巖山區高速公路建設特徵,從路基開挖中環境保護角度出發,按照盡量不開挖、如何減少開挖、如何減少開挖過程對周圍環境的影響以及如何對高速公路景觀和生態環境進行恢復、如何對建設項目進行環境質量評價等思路,應用交通工程學、巖土工程學、交通心理學、交通美學、運籌學等理論與方法,系統地對石灰巖山區高速公路路基開挖環境保護理論與方法進行了研究,構建了包括路基開挖優化、邊坡防護、土石方處理、自然水系調治恢復、景觀環境恢復、環境質量評價等理論或方法的石灰巖山區高速公路環境保護理論框架,為促進石灰巖山區高速公路的可持續發展提供了基本思路。The criterion to judge the relaxation depth of rock mass of excavation slope is defined by analyzing data of sonic wave speed and field investigation, and the distributing law of various weathered degree fossil weathered rock on slope of are educed. the mechanics parameters of relaxed rock mass are studied by using relational expression between mechanics parameters and value of sonic wave speed, which provide convenience for the study of mechanics parameters of rock mass in different state
在此基礎上,利用現場調查和實測波速資料,制定了邊坡開挖巖體鬆弛帶深度的判定標準,從而分析得出了各風化程度古風化巖邊坡的鬆弛帶分佈規律,並採用波速與巖體力學參數的相關式對鬆弛帶巖體的力學參數進行了研究,為研究不同狀態下巖體的工程特性提供了方便。In order to restrict the displacement of relaxed rock effectively, the factors affecting the efficacy of anchor measures are analyzed according to mechanism of action of anchor. in terms of principle orthogonal design, the influence of parameters of anchor to displacement of excavation slope are elevated by computing using finite element method simulation, and the optimal scheme of anchoring parameters including length of anchors and space between bolts and thickness of shot concrete are defined. finally, the optimal scheme of anchor parameters are determined with considering results of theory analyse and numerical calculation, which provide theory bases for engineering
為了有效防治邊坡開挖后巖體的鬆弛變形,根據錨桿的作用機理對影響錨固效果的主要因素進行分析,並利用處理多因素試驗的科學方法?正交設計原理,以有限元數值計算為手段,以有效約束邊坡開挖位移為標準,評價了錨桿長度、錨桿間距、混凝土噴層厚度等錨固參數對邊坡變形的影響大小和規律,經過比較分析最終提出了錨固參數的優化設計方案,為工程設計提供了理論指導。After the engineering slope was dug, several small plastic zone the designed rock - fill dam will coming in the temporary slope, because rock - fill dam change the stress field on a small degree. but a gravity dam will arouse a great area of plastic zone in the permanent slope, which will bring a stability problem. after detail and depth study, the rock - fill dam project is more compatible of the engineering geology condition in nuozadu hydraulic - power station ' s dam site
工程邊坡開挖后,擬定的堆石壩方案由於嵌入淺,應力的調整有限,塑性區主要分佈在壩頂高程附近的較小范圍內;而擬定的重力壩方案,由於嵌入深,引起了一定程度的應力調整,邊坡巖體表層產生了鬆弛變形,塑性區主要分佈在壩頂高程到坡頂前緣(永久邊坡)的v ivb類巖體分佈區。At last, a 3d - fem model is used for a soil - nailed supporting system in a classical two - layer distribution. the spatial distribution of horizontal displacement is reached by the analysis. some other analyses are made for the different ratio of length of foundation pit and the effect of the ratio on the largest horizontal displacement of the slope is analyzed
在邊坡破壞模式研究中利用有限元方法對成都砂卵石地區典型的二元體土層基坑開挖進行了數值模擬,認為其破壞並不取均質土的圓弧破壞模式,而是一種折線形破壞模式,同時建議在噴錨網支護設計中錨桿長度的變化和極限平衡分析中考慮折線形滑動面。The paper points out the factor of safety by means of finite element method, the strength reduction method and limit equilibrium method decreases in turn. according to analysis of the strength reduction method, the stability of the cutting slope is less than the stability of nature slope. according to the results by the finite element method, the factor of safety calculated by axial loading stress - strain model is less than the factor of safety by lateral unloading stress - strain model
表明有限元法、強度折減法、極限平衡法得出的安全系數依次降低;依據強度折減法分析,相同條件下,挖方邊坡的安全系數較自然邊坡的安全系數小;依據有限元西安理工大學碩士學位論文法分析,軸向加荷應力路徑模型確定的安全系數較圍壓卸荷應力路徑模型確定的安全系數小。分享友人