建筑学中，拱道或门口的拱心石，是把建筑整体连接在一起来防止它倒塌的石头。
In architecture, a keystone in an archway or doorway is the stone that holds the whole thing together, and keeps it from collapsing.
犹如弯弓的单拱，在与人行通道连接之处是非常之薄，在向地面延伸的过程中逐渐变厚。
The bowed arches of the single-span design are dramatically thin where they connect with the walkway, but they flare out as they approach the ground.
计划中的大号拱心石石油管道将用于运输产自加拿大油沙的重原油。
The proposed Keystone XL pipeline would carry heavier crude oil produced from tar sands in Canada.
根据深基坑桩排式支护中护壁桩的受力变形特点，分析了被支护土体中的成拱作用。
According to the working characters of retaining piles for deep excavation, the arching effect in adjoining soil is analyzed.
建立破碎围岩的力学模型，求破碎围岩中连拱隧道荷载的理论解。
Their related mechanical models are established and theoretical solutions to the calculation of chain tunnel load inside broken rock mass are obtained.
研究表明，支架上方顶煤体中能够形成“拱”结构，该结构的存在将对工作面矿山压力显现产生显著影响。
The research results showed that an arch structure would be formed in the top coal above the supports.
斜拉扣挂施工中索力计算复杂，根据“零弯矩法”概念，推导出拱肋节段吊装中各施工阶段扣索索力的计算公式。
On the basis of conception of zero moment, we can deduce the computational formula of the tension of cable in the different construction stage of the steel tube arch ribs.
在拱梁组合桥梁设计和施工分析中，确定成桥状态时的吊杆张拉力非常关键。
In design and construction of composite arch and Beam bridge, it is very important to determine the boom tensile force when the bridge is almost completed.
介绍和总结了近年来浙江省连拱隧道修建过程中的施工方法、防排水设计等方面的一些经验教训。
The article expounds and summarizes some experience and lesson achieved in the process of multi-arch tunnel design and construction in Zhejiang Province.
在肋拱桥的设计中，常采用弱横向联系变截面拱肋。
In the design of rib arch bridge, the arch rib of variable cross section of weak transverse fixed is adapted usually.
本文论述起重机主梁的上拱度及预拱曲线的基本原理，介绍了国内外起重机技术标准中规定的上拱度值。
This paper discusses the question of crane main girder camber and the pre-cambering curve, introducing camber values stipulated in related crane standards in China and abroad.
分两组由拱板下弦跨中同时向拱板支座浇筑混凝土，然后从拱板支座连续沿拱板上弦向中间合龙，使浇筑荷载相对均衡。
Concrete was poured in separately from mid-span of arch slab to the supports and then from the supports to the top chord of the arch chord so as to balance the pouring load.
扶垛：建筑中，自墙面凸出的砖石砌体，用以加固墙身或抵抗由拱或屋顶所产生的横向推力。
Buttress: Exterior support, usually of masonry, projecting from the face of a wall and serving to strengthen it or resist outward thrust from an arch or roof.
他的手势与其长长的手臂相一致，手势很大，一会儿象宽宽的拱架，一会儿又把手交叉在一起，手指轻快地转动着，表明讨论中的细微之处。
His gestures are huge in keeping with his long arms, reaching at one moment in a wide arc, at another bringing his hands together with the fingers twirling to suggest a finer point in the discussion.
近年来，双连拱隧道以其新颖的结构形式和自身的优点被广泛应用于公路隧道的建设中。
In recent years, the double-arch tunnel has been widely used in vehicular tunnel construction, which has new structural style and many other advantages.
条形照明灯突出了拱腹，并且再次强调了设计中无处不在的三角形。
Strip lighting highlights the soffits and again reinforces the ubiquitous triangular shapes within the design.
实际工程中的拱结构并不是采用固支或简支等理想刚性支承，而是具有弹性支承、阻尼支承等柔性动边界。
Rigid supports like clamped and simple supports are not actually adopted at the ends of arches in the engineering, but flexible supports such as elastic supports, damping supports are adopted.
若命盘中月亮落在金牛座且位于第二宫之内，与木星形成刑或冲的出相位，且与太阳形成拱的入相位时，则盘主会拥有大量的财富。
He that hath the Moon in Tairus in the second separating from the square or Opposition of Jupiter, and applying to Trine of the Sun shall obtain very considerable riches.
介绍了在黄土地区双连拱隧道中墙的选择及施工过程，并分析了如何加强对中墙的监控量测等。
The paper introduced the choice and construction process of loess multi-arch tunnel middle wall, analyzed monitoring and measurement of strengthening the middle wall for reference.
并提出了顶煤体中“跨层拱”结构的力学模型，指出了影响结构特征的相关因素。
The paper provided the mechanics model of the multi strata arch structure in the top coal and pointed the related factors of the influence structure features.
分析结果还表明，“压力拱”效应在浅埋隧洞节理裂隙围岩稳定性中起着重要作用。
The pressure-arch effect on the stability of jointed rock mass surrounding a shallow tunnel proves to be important.
主要介绍了北门桥主桥中承式钢管混凝土提篮拱结构设计以及主要施工方法。
This paper introduces the design and construction method of main bridge of the North bridge, which is a half through concrete filled steel tubular truss arch structure.
其次介绍了一个经典的拱的弹性弯扭屈曲试验，并采用有限元商业软件ANSYS中的SHELL63单元和BEAM189单元分别进行了模拟。
Secondly, a classical elastic flexural-torsional buckling tests on arch is introduced, which is simulated by shell element SHELL63 and beam element BEAM189 of commercial software ANSYS.
最后，对无中墙连拱隧道的施工方案进行了比选，即对交叉中隔壁工法的两种施工工序进行比较分析。
Finally, the construction plans of the double-arch tunnel without middle-wall are compared, that is, two construction process engineering methods of CRD construction method are compared.
结果表明，在拱结构模态试验中，ED法具有一定的合理性，但其随机性较大。
It is found that the ED method has certain rationality in the arch modal experiment, but its randomness is bigger.
针对目前沉船打捞中潜水员人工穿千斤作业的现状，根据仿生蠕动原理，提出了一种水下仿生拱泥机器人的设计方案。
According to the present situation of driver's excavating holes artificially in ship-sunken salvage, a prototype of bionic move-in-mud robot is presented by virtue of bionics principle.
通过采用商用有限元软件ANSYS中的拓扑优化设计模块对自行车车架和多拱拱桥进行了拓扑优化设计，优化结果表明所得拓扑结构清晰，并与实际的自行车车架和多拱拱桥非常相似。
The topology optimization design module of the commercial finite element software ANSYS was used to the bicycle frame and multiple arch bridge for the topology optimization design.
在屋面结构中，采用拱与网壳杂交的“拱-壳”组合体系，而拱与网壳采用V形撑进行连接。
In the roof, the "arch-shell" combinatorial system is adopted, the arch and the latticed shell is linked with the latticed shell by V branch.
在屋面结构中，采用拱与网壳杂交的“拱-壳”组合体系，而拱与网壳采用V形撑进行连接。
In the roof, the "arch-shell" combinatorial system is adopted, the arch and the latticed shell is linked with the latticed shell by V branch.
应用推荐