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stability against sliding
相关语句
  抗滑稳定
     Finite Element Simulation Model of Abutment Stability Against Sliding in Arch Dam and Its Application
     拱坝坝肩抗滑稳定的有限元仿真模型及其应用
短句来源
     The paper introduces the project general arrangement, the selection of dam boy shape, the stress analysis, the stability against sliding of dam abutment and the foundation treatment.
     文章介绍了工程总体布置、大坝体型选择、应力分析、坝肩抗滑稳定和基础处理。
短句来源
     Inquiry to Safety Coefficient and Safety Degree of Stability Against Sliding of Concrete Gravity Dam
     混凝土重力坝抗滑稳定安全系数与安全度探讨
短句来源
     A Reliability Analysis for the Stability against Sliding of a Bank Slope
     边坡抗滑稳定可靠性分析
短句来源
     Study on Stability against Sliding & Strengthening Treatment Scheme of Xiangjiaba Gravity Dam
     向家坝大坝抗滑稳定分析及处理方案研究
短句来源
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  抗滑稳定性
     On the basis of dynamic response analysis of antiseismic design for two typic dam blocks of water retaining and overflowing at Guandi Hydroelectric Plant,the antiseismic strength safety and stability against sliding of dam under design seismic action are described.
     在官地水电站挡水和溢流两个典型坝段抗震设计动力响应分析的基础上 ,论述了大坝在设计地震作用下的抗震强度安全和抗滑稳定性
短句来源
     Analysis of stability against sliding of dam by passive resisting force method
     用被动抗力法分析大坝抗滑稳定性
短句来源
     Engineerng Measures for Increasing Stability against Sliding along the Base of Concrete Gravity Dams on Rock Foundation
     提高岩基混凝土重力坝沿坝底抗滑稳定性的工程措施
短句来源
     Evaluation of the Deep Stability against Sliding of the Dam Base of Fenhe No.2 Reservoir
     汾河二库坝基深层抗滑稳定性评价
短句来源
     Engineering measures for increasing stability against sliding of Reservoir II dam
     汾河二库增强大坝抗滑稳定性的工程措施
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  “stability against sliding”译为未确定词的双语例句
     The application of finite element equivalent stress method in the design of arch dam,the calculation of ultimate load of arch dam and the arch dam stability against sliding upwards alone the inclined base are discussed.
     讨论了有限单元—等效应力法在拱坝设计中的应用、拱坝极限荷载的计算以及拱坝抵抗沿倾斜坝基面上滑的稳定性等问题
短句来源
     Reliability Analysis of Three Dimensional Abutment Stability Against Sliding of Arch Dam
     拱坝坝肩岩体三维稳定可靠性分析
短句来源
     Check on Stability Against Sliding of Some Levee
     某大堤抗滑稳定性验算
短句来源
     Measures for Improving Stability Against Sliding of Lift Interfaces within RCC Gravity Dam
     提高碾压混凝土重力坝层面抗滑稳定性的措施
短句来源
     Static and Dynamic Reliability Analysis for Abutment Stability Against Sliding
     拱坝坝肩整体稳定静力动力可靠度分析
短句来源
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  stability against sliding
The results of these tests are used in an analysis of stability against sliding along the given interface.
      


In this paper a discussion on the adoption of the seismic coefficients and on safety evaluation in aseismatic design of gravity dams on rock foundations is presented.The discussion is based on further investigations the seismic response of the Xinfengjiang Dam, the Koyna Dam and some other gravity dams selected.In aseismatic design of gravity dams, usually based on static method or so-called pseudo-static method using conventional seismic coefficients and static parameters for calculating the shearing strength,...

In this paper a discussion on the adoption of the seismic coefficients and on safety evaluation in aseismatic design of gravity dams on rock foundations is presented.The discussion is based on further investigations the seismic response of the Xinfengjiang Dam, the Koyna Dam and some other gravity dams selected.In aseismatic design of gravity dams, usually based on static method or so-called pseudo-static method using conventional seismic coefficients and static parameters for calculating the shearing strength, a basic evaluation of the overall stability against sliding of the dam subjected to earthquake, though far from being satisfactory, can usually be obtained. Stress calculation based on such methods, however, is often misleading. Therefore, it is advisable to take a different approach.Applicating the method of dynamic analysis and adopting a design seismic coefficient for the expected ground motion of the dam foundation to estimate the earthquake loadings and stresses, combining them with those produced by normal loads and comparing them with the paremeters for static strength, one may then arrive at a reasonable safety evaluation of a dam.This paper deals mainly with the problem of stability against sliding.The authors present the concept of relative seismic stability, which shall be helpful to indicate the rule of stability against sliding of dams subjected to earthquake and, consequently, to make sure the safety of the dam.In the investigation the dynamic coupling action between the dam and the reservoir water was taken into consideration,the dam and the reservoir water being treated as an assemble of finite elements.The analysis was carried by both the methods of response spectrum and time-history. And the combined effects of dynamic and static loadings were introduced.

本文在通过对新丰江和柯依那(Koyna)大坝的震害情况进一步分析,和选择了其它一些重力坝进行研究后,提出了岩基上重力坝抗震设计地震系数的采用及安全性估算的意见. 在重力坝的抗震设计中,按照静力法或拟静力法和经验的地震系数、抗剪强度的静力指标检验大坝的抗滑稳定性,是可以得到基本估计的,但还存在某些问题;尤其是,在进行坝体强度校核时,往往会使人产生误解.因此,作者认为有必要采用动力分析法和预计的设计坝基地震系数,以估算地震荷载和应力,并与正常荷载的情况组合,取强度的静力指标作出比较,才能得到近乎合理的安全估算. 文中着重研究了大坝滑动稳定性问题,提出了抗震的稳定相对安全率的概念,它有助于揭示地震时大坝抗滑稳定的变化规律,并作出安全的估算. 在分析时,将坝体和库水作为有限单元的集合体,考虑了坝体与库水在振动时耦合作用,按反应谱法和时程法进行动力分析,得出了动力和静力的综合成果.

This paper concerns with the findings obtained from the tridimensional geomechanical model experiment to study the stability against sliding of the foundation of the second channel sluice of Gezhouba Project. The experimental results show that it can enhance the factor of safety of foundation stability about 20%, if several engineering measures such as providing slab of antipercolation or deepening the upstream cutoff are taken. The overloading coefficient amounts to 2.4, when the measures above...

This paper concerns with the findings obtained from the tridimensional geomechanical model experiment to study the stability against sliding of the foundation of the second channel sluice of Gezhouba Project. The experimental results show that it can enhance the factor of safety of foundation stability about 20%, if several engineering measures such as providing slab of antipercolation or deepening the upstream cutoff are taken. The overloading coefficient amounts to 2.4, when the measures above mentioned are fulfilled. These results have been compared with those obtained from the bidimensional geomechanical model experiment. Under the corresponding conditions in which the lateral pressures of bed rock of both the models are neglected and the engineering measures remain unchang ed, the overloading coefficients of both models are considerably close and the foundation failure are of the same pattern.

本文论述了用三维地质力学模型对葛洲坝工程二江泄水闸的抗滑稳定问题进行实验研究的成果。实验成果表明,采取防渗板或深齿墙等工程措施可提高稳定安全度约20%,采取这些措施后超载系数可达2.4左右。与二维地质力学模型实验成果比较,在都不考虑基岩侧压力和在同样工程措施情况下,两者的超载系数比较接近而其破坏形式也是一致的。

The bedrock under the second channel sluice of Gezhouba Project is mainly composed of alternation of strata of clayey siltstone and sandstone. The rock mass is weak, with multiple layers of argillaceous seams of clay rock. The attitude of the rock is nearly horizontal and there are two groups of fissures slightly inclined toward upstream of the sluice to form some probable slide planes. In view of this, a great deal of research work, such as experiments on geomechanical models and non-linear finite element computations,...

The bedrock under the second channel sluice of Gezhouba Project is mainly composed of alternation of strata of clayey siltstone and sandstone. The rock mass is weak, with multiple layers of argillaceous seams of clay rock. The attitude of the rock is nearly horizontal and there are two groups of fissures slightly inclined toward upstream of the sluice to form some probable slide planes. In view of this, a great deal of research work, such as experiments on geomechanical models and non-linear finite element computations, has been carried out. This paper analyses comprehensively the findings obtained from experiment and computation and compares with those informations obtained from observation on prototype of Gezhouba Project in the last four years.All these efforts gave rise to a correct assessment of safety margin of bedrock stability against sliding for the second channel sluice of Gezhouba Project.

葛洲坝二江泄水闸基岩,主要为粘土质粉砂岩与砂岩互层;岩性软弱,并夹有多层粘土岩泥化夹层,产状又接近水平并与两组倾向上游的缓倾角裂隙组成可能的滑动面。为此,对葛洲坝二江泄水闸的基岩稳定问题,曾经用地质力学模型及非线性有限元计算等方法,进行过大量的分析研究工作。本文综合分析了这些试验研究成果,并用葛洲坝工程运行四年来取得的原型观测资料,作了对比分析和验证,对葛洲坝二江泄水闸基岩的稳定安全度,作出了正确的评价。

 
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