本文研究了在垂直于磁场和等离子体流动的重力场中具有剪切流动的电流片的稳定性。
The stability is studied of a current sheet with a sheared flow in a gravitational field which is perpendicular to the magnetic field and plasma flow.
滑坡是土坡重力侵蚀破坏的主要形式,在目前的工程实践中,土坡稳定性分析最常用的方法是圆弧条分法。
Landslide is the main failure form of earth slope under gravity erosion. In engineering practice, the circle sliced method is popularly used in slope stability assessment.
本文应用WKB方法研究了在弱非均匀层结大气中,当基本气流具有弱垂直切变时,重力惯性内波的稳定性问题。
This paper discusses the stability of internal inertial gravity wave in the heterogeneous stratified atmosphere when basic flow appears to be weak vertical shear by the WKB method.
应力应变分析和坝基抗滑稳定性是重力坝设计中的重要内容。
The stress, strain and sliding stability are important contents for the design of gravity dam.
作为一个例子,还讨论了弱重力场情况下激发流动重力模不稳定性的临界条件。
As an example, the critical condition for the streaming gravity mode instability is discussed in a weak gravitational field.
应用蒙特卡罗模拟方法,考虑材料参数和荷载的变异性,对混凝土重力坝强度和稳定性的可靠性分别进行了研究。
Considering the material parameters and the load changeability, the reliability of intensity and stability for the concrete gravity dam is researched with the method of Monte Carlo simulation.
显然,由于雨水冲刷、渗流、重力、地震等因素的影响,被喷播到边坡坡面上的客土存在力学稳定性问题。
Obviously, borrowed soil sprayed on slope surface tends to slide or collapse under actions of rainwash, seepage, gravitational force, earthquake, etc.
按重力式挡墙,对该基坑的外部稳定性进行验算;
The gravity retaining wall theory is adopted to proceed exterior stability analysis;
重力式挡土结构的抗震研究涉及地震土压力、墙身强度抗震验算和地震稳定性等方面。
The aseismic research about gravity retaining structures deals with seismic soil pressure, seismic wall strength checking and seismic stability.
浆砌石重力坝的应力和稳定性分析是进行其它设计的基础,是整个设计的重要组成部分。
As the foundation of other analysis in gravity dam's designment, stress and stability analysis is an significant segment.
坝踵裂缝扩展是重力坝破坏的开始。应该用断裂力学方法校核坝踵裂缝的稳定性,并以此作为重力坝稳定的补充条件。
Stability of the crack should be checked by the method of fracture mechanics, which should be a supplemental stability condition of the gravity DAMS.
A 10流动式绝对重力仪通过近几年来的改进与实用研究,已说明其观测结果的稳定性、可靠性及具有较高的测量精度。
The A10 mobile absolute gravimeter provides us with high stability, high reliability and high measurement precision observed data after years improving and practicing in researches.
应用结构塑性极限分析的上、下限定理及相应的有限元法分析重力坝的极限承载能力,以判断大坝的稳定性。
The upper bound and lower bound theorem of classical plasticity theory and corresponding FEM is applied to analyze the bearing capacity of gravity dam for judging the stability of the dam.
在适当的条件下,重力波能触发交换不稳定性。
It is shown that the gravity waves can initiate the interchange instability under some conditions.
为改善重力坝的抗滑稳定性,提出一种齿型基岩面设计与施工方法。
To improve the sliding stability of gravity DAMS, this paper proposes a kind of construction method by making a dentate joint between the dam and the base.
建立了重力坝和坝基相互作用的两体力学模型,为大坝与坝基的整体稳定性研究与评判提供了一条新的途径。
The two-body mechanical model of dam and foundation is presented in order to provide a new method for stability analysis of dam and foundation.
重力坝主要依靠其自身的重力来维持稳定,其坝体体积大,稳定性好,但由于各种原因,仍有可能失事。
Gravity dam mainly relies on its own gravity to maintain the stability, with large volume, good stability, but for various reasons, it still may be breaked.
因此,微重力环境下V型火焰锋面的不稳定性可能是声波与谐波相耦合的结果。
The conclusion points out that the ripples appeared in the laminar microgravity V flame are due to the effect of acoustic interaction coupling with the harmonic instability.
针对1970年建设的青岛某重力式码头的变形,制定检测方案,分析检测结果,并进行码头稳定性验算。
According to the deformation of a gravity wharf built in 1970 in Qingdao, a inspection scheme was established, the inspection result was analyzed and the stabilization of the wharf was calculated.
它比一般空腹重力坝更能节约工程量,对改善坝踵应力以及提高坝体的稳定性有利。
It enables to reduce the volume of concrete, strengthen the stresses of the dam heel and increase the stability of the dam.
这种由剪切流动和重力联合作用所引起的混合模,称为流动重力模不稳定性。
This mixing mode caused by a combined role of the sheared flow and gravity is named the Streaming gravity mode Instability "."
重力坝算例说明,2阶等效应力具有一定的网格稳定性,适合在重力坝工程中比较局部角缘应力。
The case study of a gravity dam shows that the 2-order equivalent stress is somewhat mesh independent, and suitable to be used to evaluate the corner stress of gravity DAMS.
提出在特殊地形地质路段采用锚杆扩大基础的支护设计理念,针对重力式挡墙介绍锚杆扩大基础的结构设计方法与稳定性分析步骤。
This paper recommends the design concept of applying anchor bolt expanded foundation retaining structure in special geography and geology road segment.
实例计算的结果表明,我们建议的方法不但能够求得整体重力坝的应力分布,还可以对岸坡坝段和坝座基岩的强度和稳定性分析提供有益的资料。
The result of practical example shows that the proposed method can not only get the stress distribution of monolithic DAMS but also contribute a valuable information to the analysis of STR...
实例计算的结果表明,我们建议的方法不但能够求得整体重力坝的应力分布,还可以对岸坡坝段和坝座基岩的强度和稳定性分析提供有益的资料。
The result of practical example shows that the proposed method can not only get the stress distribution of monolithic DAMS but also contribute a valuable information to the analysis of STR...
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