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This diesis not only summarized and induced the classification of the slope and the influence factors of slope stability, but also summarized and classified the basic and new theories and methods of slope stability analysis, and then try to understand thoroughly and extensively the breakage mechanism and analytical theories and methods of slope stability for choosing the most suitable analytical theory and method of the engineering example research.
本文不仅对边坡的分类和影响边坡稳定性的因素进行归纳和总结,而且对边坡稳定性分析的基本理论与方法以及不断涌现出的新理论新方法进行整理、归纳和分类,力图对边坡变形破坏机制和边坡稳定性分析的理论与方法具有较为全面和深入的认识,为工程实例的研究确定适合的分析理论和方法。
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The safety factor obtained with the relationship between elastic strain energy and the reduction coefficient is similar to that obtained by other traditional slope steady analyzed method.
摘 要:为分析采用强度折减法确定边坡安全系数过程中边坡弹性应变能随折减系数变化与边坡失稳破坏的内在联系,建立数值模型,记录边坡弹性应变能与折减系数关系曲线;通过对某边坡的分析,绘制弹性应变能与折减系数关系曲线。
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Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.
本文对冷冲压技术的分类、特点及发展方向作了简略概述;论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理;对典型的冲压件模具进行了设计:大直径三通管冲压复合模设计解决了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。
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Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,代写医学论文,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.
本文对冷冲压技术的分类、特点及发展方向作了简略概述;论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理;对典型的冲压件模具入行了设计:大直径三通管冲压复合模设计盖世了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。
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Combined a large number of on -site investigate and survey data of loess area in the north of Shaanxi Province, the paper analyzed the influence factors and interrelationship of slope erosion, then put forward the main influence factors , the peculiarity of outwash destructions the main style and protective measures about slope erosion of highway in loess area. The first: the emphasis about protective measures of cut-slope are the selection of rate of grade, the place of plain stage of slope, the slope protection; the second: the emphases about drainage of cut-slope is the rational installation and mating of drainage establishment; And following this principle: the effective holding up , the rapid obviating, the smooth articulation, the seepage prevention and prevent erosion.
根据陕北黄土地区公路的大量现场调查和实测资料,分析了公路边坡冲蚀的影响因素及其相互关系,提出了黄土地区公路边坡冲蚀的主要影响因素、冲蚀破坏特点、主要类型与防护对策,得出:1、路堑边坡坡面冲蚀防护重点是坡率选择、边坡平台设置、边坡防护;2、路堑边坡排水重点是排水设施的合理设置与配套;并遵循有效拦截、迅速排除、衔接顺畅、防渗防冲等原则。
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The first one is to generate the circle for each borderline segment of the component by considering the segment length and the prescribed tolerance value. If this is not the case, the borderline segment will be equally divided into halves until the obtained circle satisfies the tolerance value over the whole borderlines of the component. The basic idea of the last two algorithms aims at covering the domain occupied by the component as much as possible. The circle generation is carried out sequentially from salient angle to the sector formed by the salient angle till the uncovered borderline segments of the component. Particularly, the three-step algorithm with gap allows that the generated circles are distributed with gap along the component contour.
二分法利用组件各边长度和设置的容差大小得到该边的候选包络圆,若该圆不满足组件所有边的容差要求,则将该边不断地对分,直至所得到的包络圆满足各边的容差要求;三步划分法和带间隙的改进三步划分法则以组件区域为划分对象,依次对组件多边形凸顶角、凸扇形区和多边形各边剩余线段划分包络圆,且带间隙的改进三步划分法则允许包络圆在组件边界上以适当的间隙分布。
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Slope stabilization treatment of this region including polyathylen strip method and thin layer hydrograsser method, some small slopes even have not been treated. A few of the treated slopes fail during heavy rainfall. The post method of treatmenting these slopes obviously doesn't function properly. The purposes of this research is to suggest suitable methods for gravel slopes, and consider slope behavior and stability.
当初公路沿线砾石边坡於设计阶段时,采用了包括植生带铺植工法及薄层喷植工法二种护坡工法,另部份边坡高度较小之路段未予植生处理;由於此路段边坡易受雨水侵蚀而形成侵蚀沟,并使其细粒料流失,造成边坡植生效果不佳,所采用之护坡工法无法达到其预期之效果,本研究目的为建议适合之工法应用於现地砾石边坡上,并探讨边坡之整体行为与稳定性。
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At first it analyzes the bedding rock slope"s bedded rock and its incontinuity face, and studies the stress, strain, stability"s condition of the bedding rock slope, fully considering the cohesive force of rock layer and incontinuity face.Geologic mechanics models of two types of bedding rock slope are set up, the instability coefficient of bedding rock slope under different mechanical parameters is computed, and the conclusion that the stability of bedding rock slope is relation to rock layerer, cohesive force of incontinuity face, inner friction angle and rock layer obliquity has been gotten.
本文首先对顺层边坡的层状岩体及其中的层理面和不连续面进行了分析,对其应力应变进行了研究,得出了顺层边坡的稳定性不仅与岩体中岩石的强度有关,还与岩体中层理面及不连续面的内聚力、内摩擦角及其倾角有关;论文建立了层理面和节理面的地质力学模型,讨论了其力学参数变化对边坡稳定性的影响,并在此基础上将层理面和节理面归纳为顺层边坡稳定性的结构面影响因素,同时讨论了影响顺层边坡稳定性的其他因素,从而得出顺层边坡稳定性的评价预测指标。
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In 2006,LIU Xin-sheng et al.introduced the concept of star-edge coloring of graphs, a star-edge coloring of graph G is a proper edge coloring of G such that any path of length 4 in G is not bicolored.The star chromatic index of G,denoted byχ_s,is the smallest integer k for which G admits a star-edge coloring with k colors.
2006年,刘信生等提出了星边染色的概念,若图G的一个正常边染色满足G中没有长为4的路是2-边染色的,则称此染色是G的一个星边染色,使得G有星边染色的最小颜色数称为星边色数,记作χ_s。
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Daily production circumstances, be it hand-mounted or mounted automatic mechanical, it is inevitable that mounted are not allowed to occur, in order to prevent the phenomenon of mounted non-business card printing after dangersous them…we projecting edges appear, usually in the phenomenon of hkd250 based on the characteristics of the product, the business card printing for side gauges and padding on the edges of the former syndiospecific 3-6 mm overlap at the ends of the cutting, which mounted, the non-business card printing dangersous them…we edges appropriate to carry out some mm sonagraph mounted to effectively prevent non-business card printing dangersous them…we projecting edges appear and which would ensure the accuracy of the die-cutting.
常日不入产环境暗示,不论是手工裱贴或板滞被迫裱贴,都不免会呈现裱贴禁绝本体,为避免裱贴后的否制卡背的端方纸边呈现凹陷本体,凡是在制卡时不离给根据产物的特点,不兵制卡半制品的侧规和后规纸边增不收3—6mm不相等的修边余量,这样裱贴时,不兵否制卡背的端方纸边不分往边伸众少毫米举行裱贴,可灵验不天避免否制卡背的端方纸边呈现凹陷本体,包管产物模切的不确。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。